/* roulang page: index */
:root {
            --primary: #1B5E9E;
            --primary-light: #2E7BC4;
            --primary-soft: #E8F1FA;
            --primary-10: #D6E4F3;
            --dark: #0F1F33;
            --dark-2: #16283F;
            --body-text: #33404F;
            --muted: #6B7A8C;
            --muted-light: #8E9BAA;
            --bg-white: #FFFFFF;
            --bg-light: #F4F7FB;
            --border: #E3EAF2;
            --border-input: #D5DFE8;
            --gold: #C9A84C;
            --gold-soft: #F6EFD9;
            --shadow-sm: 0 2px 8px rgba(15, 31, 51, 0.06), 0 8px 24px rgba(15, 31, 51, 0.05);
            --shadow-hover: 0 4px 16px rgba(15, 31, 51, 0.10), 0 12px 32px rgba(15, 31, 51, 0.08);
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 8px;
            --radius-icon: 10px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --section-spacing: 80px;
            --section-spacing-mobile: 52px;
            --container-max: 1200px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--body-text);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }

        a:hover {
            color: #12467a;
            text-decoration: underline;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--dark);
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

        h1 {
            font-size: 2.4rem;
            line-height: 1.3;
            margin-bottom: 1.2rem;
            color: var(--dark);
        }

        h2 {
            font-size: 1.7rem;
            font-weight: 600;
            margin-bottom: 1.1rem;
            color: var(--dark);
        }

        h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 0.8rem;
        }

        p {
            margin-bottom: 1rem;
            color: var(--body-text);
        }

        .text-muted-custom {
            color: var(--muted) !important;
            font-size: 0.9rem;
        }

        .text-small {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }

        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 576px) {
            .container-custom {
                padding: 0 18px;
            }
        }

        section {
            padding: var(--section-spacing) 0;
            position: relative;
        }

        @media (max-width: 992px) {
            section {
                padding: var(--section-spacing-mobile) 0;
            }
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 0.8rem;
            border: 1px solid var(--primary-10);
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.4;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .bg-light-section {
            background-color: var(--bg-light);
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(15, 31, 51, 0.04);
        }

        .brand-topbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            text-decoration: none;
            letter-spacing: 0.06em;
            white-space: nowrap;
        }

        .brand-logo:hover {
            text-decoration: none;
            color: var(--dark);
        }

        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            border: 2px solid var(--primary-light);
            box-shadow: 0 2px 6px rgba(27, 94, 158, 0.25);
            flex-shrink: 0;
        }

        .brand-logo .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.04em;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .brand-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 6px 14px;
            color: var(--muted);
            font-size: 0.85rem;
            cursor: pointer;
            transition: border-color 0.2s;
            white-space: nowrap;
        }

        .brand-search:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }

        .brand-search i {
            font-size: 0.8rem;
        }

        .auth-buttons {
            display: flex;
            gap: 10px;
        }

        .btn-auth {
            font-size: 0.85rem;
            padding: 7px 16px;
            border-radius: 8px;
            font-weight: 500;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--dark);
            transition: all 0.2s;
            min-height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            white-space: nowrap;
        }

        .btn-auth:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
            text-decoration: none;
        }

        .btn-auth.btn-auth-solid {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .btn-auth.btn-auth-solid:hover {
            background: #12467a;
            border-color: #12467a;
            color: #fff;
        }

        /* Icon Grid Nav */
        .nav-icon-grid {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            padding: 8px 0;
            position: relative;
        }

        .nav-icon-grid .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-icon-grid .container-custom::-webkit-scrollbar {
            display: none;
        }

        .nav-icon-item {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 10px 14px;
            border-radius: 10px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--muted);
            text-decoration: none;
            white-space: nowrap;
            transition: all 0.2s;
            min-width: 72px;
            flex-shrink: 0;
            min-height: 56px;
        }

        .nav-icon-item i {
            font-size: 1.2rem;
            color: var(--muted);
            transition: color 0.2s;
        }

        .nav-icon-item:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
        }

        .nav-icon-item:hover i {
            color: var(--primary);
        }

        .nav-icon-item.active {
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
        }

        .nav-icon-item.active i {
            color: #fff;
        }

        .nav-icon-item.active .nav-label {
            color: #fff;
        }

        .nav-label {
            font-size: 0.78rem;
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        /* Mobile hamburger */
        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
            font-size: 1.1rem;
            color: var(--dark);
            cursor: pointer;
            min-height: 44px;
            min-width: 44px;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .navbar-toggler-custom {
                display: inline-flex;
            }

            .nav-icon-grid .container-custom {
                display: none;
                flex-wrap: wrap;
                justify-content: flex-start;
                gap: 4px;
                padding: 12px 18px;
            }

            .nav-icon-grid .container-custom.show {
                display: flex;
            }

            .nav-icon-grid .container-custom.show .nav-icon-item {
                width: calc(25% - 8px);
                min-width: 0;
                padding: 12px 6px;
            }

            .nav-icon-grid .container-custom.show .nav-icon-item .nav-label {
                font-size: 0.72rem;
            }

            .brand-topbar {
                padding: 0 16px;
                height: 56px;
            }

            .brand-search {
                display: none;
            }

            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }

            .brand-logo .logo-text {
                font-size: 1.1rem;
            }

            .auth-buttons .btn-auth {
                padding: 5px 10px;
                font-size: 0.78rem;
                min-height: 34px;
            }
        }

        @media (max-width: 576px) {
            .nav-icon-grid .container-custom.show .nav-icon-item {
                width: calc(33.33% - 6px);
            }

            .auth-buttons .btn-auth span {
                display: none;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            padding: 0;
            position: relative;
            background-color: var(--bg-light);
            overflow: hidden;
            min-height: 460px;
            display: flex;
            align-items: center;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.22;
            z-index: 0;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(244, 247, 251, 0.85) 0%, rgba(255, 255, 255, 0.92) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 72px 0;
            width: 100%;
        }

        .hero-content .container-custom {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            max-width: 860px;
        }

        .hero-title {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1.2rem;
            line-height: 1.3;
            letter-spacing: 0.03em;
        }

        .hero-title em {
            font-style: normal;
            color: var(--primary);
            border-bottom: 3px solid var(--primary-light);
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--body-text);
            line-height: 1.8;
            margin-bottom: 1.4rem;
            max-width: 680px;
        }

        .hero-desc {
            font-size: 1rem;
            color: var(--muted);
            line-height: 1.85;
            margin-bottom: 2rem;
            max-width: 650px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 1.6rem;
        }

        .hero-data-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-data-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-data-item .data-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .hero-data-item .data-label {
            font-size: 0.85rem;
            color: var(--muted);
        }

        @media (max-width: 768px) {
            .hero-content {
                padding: 48px 0;
            }

            .hero-title {
                font-size: 2rem;
            }

            .hero-subtitle {
                font-size: 1.05rem;
            }

            .hero-desc {
                font-size: 0.92rem;
            }

            .hero-data-row {
                gap: 20px;
            }
        }

        /* ========== BUTTONS ========== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-sans);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            text-decoration: none;
            min-height: 46px;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .btn-custom:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-custom-primary {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }

        .btn-custom-primary:hover {
            background: #12467a;
            border-color: #12467a;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(27, 94, 158, 0.25);
        }

        .btn-custom-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(27, 94, 158, 0.2);
        }

        .btn-custom-secondary {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary-light);
        }

        .btn-custom-secondary:hover {
            background: var(--primary-soft);
            color: #12467a;
            border-color: var(--primary);
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-custom-sm {
            padding: 7px 16px;
            font-size: 0.83rem;
            min-height: 38px;
            border-radius: 8px;
        }

        .btn-custom-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
            min-height: 54px;
            border-radius: 10px;
        }

        @media (max-width: 576px) {
            .btn-custom {
                padding: 10px 18px;
                font-size: 0.9rem;
                min-height: 44px;
            }
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
            height: 100%;
        }

        .card-custom:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }

        .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: var(--radius-icon);
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 1.2rem;
            margin-bottom: 14px;
            flex-shrink: 0;
            transition: background 0.2s, color 0.2s;
        }

        .card-custom:hover .card-icon {
            background: var(--primary);
            color: #fff;
        }

        .card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-desc {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ========== METRICS / DATA BOARD ========== */
        .metrics-board {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 24px 20px;
            text-align: left;
            position: relative;
            overflow: hidden;
            transition: box-shadow 0.25s, border-color 0.25s;
        }

        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }

        .metric-num {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }

        .metric-name {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 4px;
        }

        .metric-desc {
            font-size: 0.82rem;
            color: var(--muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        @media (max-width: 992px) {
            .metrics-board {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 576px) {
            .metrics-board {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .metric-num {
                font-size: 2rem;
            }
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .service-matrix-row {
            display: grid;
            gap: 20px;
        }

        .service-matrix-row.row-8-4 {
            grid-template-columns: 2fr 1fr;
        }

        .service-matrix-row.row-4-8 {
            grid-template-columns: 1fr 2fr;
        }

        .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.25s ease;
            height: 100%;
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }

        .service-card-header {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 14px;
        }

        .service-card-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
        }

        .service-card-desc {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .service-card-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s;
        }

        .service-card-link:hover {
            gap: 10px;
            text-decoration: none;
            color: #12467a;
        }

        .service-card-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: 10px;
            margin-bottom: 16px;
        }

        @media (max-width: 992px) {
            .service-matrix-row.row-8-4,
            .service-matrix-row.row-4-8 {
                grid-template-columns: 1fr;
            }

            .service-card {
                padding: 22px;
            }
        }

        /* ========== COMPARISON ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: stretch;
        }

        .comparison-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            transition: all 0.25s;
        }

        .comparison-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .comparison-card.featured {
            border-color: var(--primary);
            border-width: 2px;
            position: relative;
        }

        .comparison-card.featured::after {
            content: '推荐方案';
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--primary);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            letter-spacing: 0.05em;
        }

        .comparison-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 0.92rem;
            color: var(--body-text);
            border-bottom: 1px solid var(--border);
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-list li i {
            color: var(--primary);
            font-size: 0.85rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .comparison-list li .highlight-tag {
            font-size: 0.72rem;
            font-weight: 600;
            background: var(--gold-soft);
            color: #8a722e;
            padding: 2px 8px;
            border-radius: 4px;
            margin-left: 6px;
            white-space: nowrap;
        }

        .comparison-vs {
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--muted-light);
            letter-spacing: 0.1em;
        }

        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .comparison-vs {
                padding: 4px 0;
            }

            .comparison-card {
                padding: 20px;
            }
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .deep-content h3 {
            font-size: 1.3rem;
            color: var(--dark);
            margin-bottom: 1rem;
            font-weight: 600;
        }

        .deep-content p {
            font-size: 0.98rem;
            line-height: 1.85;
            color: var(--body-text);
            margin-bottom: 1.2rem;
        }

        .deep-content .content-img {
            width: 100%;
            border-radius: 12px;
            margin: 1.5rem 0;
        }

        .content-caption {
            font-size: 0.82rem;
            color: var(--muted);
            text-align: center;
            margin-top: -0.8rem;
            margin-bottom: 1.5rem;
        }

        .deep-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg-light);
            padding: 16px 20px;
            border-radius: 8px;
            margin: 1.5rem 0;
            font-style: normal;
            color: var(--dark-2);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .deep-content {
                padding: 24px 20px;
            }
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-bubbles {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-bubble {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 24px 20px;
            position: relative;
            transition: all 0.25s;
        }

        .testimonial-bubble:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }

        .testimonial-bubble::before {
            content: '\201C';
            font-size: 2.5rem;
            color: var(--primary-10);
            position: absolute;
            top: 8px;
            left: 16px;
            line-height: 1;
            font-family: Georgia, serif;
        }

        .testimonial-content {
            font-size: 0.9rem;
            color: var(--body-text);
            line-height: 1.75;
            margin-bottom: 14px;
            padding-top: 20px;
            position: relative;
            z-index: 1;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .testimonial-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--dark);
        }

        .testimonial-role {
            font-size: 0.78rem;
            color: var(--muted);
        }

        @media (max-width: 992px) {
            .testimonial-bubbles {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        @media (max-width: 576px) {
            .testimonial-bubbles {
                grid-template-columns: 1fr;
            }
        }

        /* ========== NEWS / INFO ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 28px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
            align-items: flex-start;
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-date {
            min-width: 100px;
            font-size: 0.85rem;
            color: var(--muted);
            padding-top: 2px;
            white-space: nowrap;
        }

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 5px;
            line-height: 1.5;
        }

        .news-title a {
            color: var(--dark);
            text-decoration: none;
        }

        .news-title a:hover {
            color: var(--primary);
            text-decoration: underline;
        }

        .news-summary {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.65;
            margin-bottom: 8px;
        }

        .btn-read-more {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            padding: 4px 0;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: none;
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: gap 0.2s;
        }

        .btn-read-more:hover {
            gap: 8px;
            color: #12467a;
            text-decoration: none;
        }

        .news-sidebar {
            background: var(--bg-light);
            border-radius: var(--radius-card);
            padding: 24px;
            border: 1px solid var(--border);
        }

        .news-sidebar-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 16px;
        }

        .news-sidebar-item {
            display: flex;
            gap: 12px;
            margin-bottom: 14px;
            align-items: center;
        }

        .news-sidebar-item:last-child {
            margin-bottom: 0;
        }

        .news-sidebar-item img {
            width: 60px;
            height: 60px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .news-sidebar-item .side-title {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--dark);
            line-height: 1.5;
        }

        .news-sidebar-item .side-title a {
            color: var(--dark);
            text-decoration: none;
        }

        .news-sidebar-item .side-title a:hover {
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .news-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .news-date {
                min-width: 80px;
                font-size: 0.8rem;
            }

            .news-item {
                gap: 10px;
            }
        }

        /* ========== TRIAL / BENEFIT ========== */
        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .benefit-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 18px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s;
        }

        .benefit-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }

        .benefit-icon {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .benefit-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
        }

        .benefit-desc {
            font-size: 0.82rem;
            color: var(--muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        @media (max-width: 992px) {
            .benefit-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 576px) {
            .benefit-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* ========== QUALIFICATION ========== */
        .qualification-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }

        .qualification-text {
            font-size: 0.95rem;
            line-height: 1.85;
            color: var(--body-text);
        }

        .qualification-text h3 {
            margin-bottom: 1rem;
        }

        .qualification-text p {
            margin-bottom: 1.2rem;
        }

        .qualification-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .qualification-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid var(--primary-10);
        }

        .qualification-visual {
            background: var(--bg-light);
            border-radius: var(--radius-card);
            padding: 28px;
            border: 1px solid var(--border);
        }

        .qualification-visual img {
            width: 100%;
            border-radius: 10px;
            margin-bottom: 12px;
        }

        .qualification-visual .caption {
            font-size: 0.82rem;
            color: var(--muted);
            text-align: center;
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .qualification-content {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 36px 32px;
        }

        .brand-intro p {
            font-size: 1rem;
            line-height: 1.9;
            color: var(--body-text);
            margin-bottom: 1.2rem;
            text-align: justify;
        }

        .brand-intro p:last-child {
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .brand-intro {
                padding: 24px 18px;
            }

            .brand-intro p {
                font-size: 0.92rem;
            }
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: 12px !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: 0 1px 3px rgba(15, 31, 51, 0.04);
        }

        .faq-accordion .accordion-button {
            font-family: var(--font-sans);
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            padding: 18px 20px;
            background: var(--bg-white);
            border: none;
            box-shadow: none;
            line-height: 1.5;
            transition: all 0.2s;
            min-height: 48px;
            border-radius: 12px !important;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-soft);
            color: var(--primary);
            box-shadow: none;
            border-bottom: 1px solid var(--border);
            border-radius: 12px 12px 0 0 !important;
        }

        .faq-accordion .accordion-button::after {
            display: none;
        }

        .faq-accordion .accordion-button .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            margin-right: 10px;
            transition: transform 0.3s;
            flex-shrink: 0;
        }

        .faq-accordion .accordion-button:not(.collapsed) .faq-icon {
            transform: rotate(45deg);
        }

        .faq-accordion .accordion-body {
            font-size: 0.92rem;
            color: var(--body-text);
            line-height: 1.85;
            padding: 18px 20px 20px 52px;
            background: var(--bg-white);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 2px var(--primary-10);
            border-color: var(--primary);
        }

        /* ========== FORM ========== */
        .form-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            padding: 36px;
            max-width: 680px;
            margin: 0 auto;
        }

        .form-label-custom {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 5px;
        }

        .form-control-custom {
            width: 100%;
            padding: 10px 14px;
            font-size: 0.95rem;
            font-family: var(--font-sans);
            border: 1px solid var(--border-input);
            border-radius: var(--radius-input);
            color: var(--dark);
            background: var(--bg-white);
            transition: border-color 0.2s, box-shadow 0.2s;
            min-height: 46px;
            line-height: 1.6;
        }

        .form-control-custom::placeholder {
            color: var(--muted-light);
        }

        .form-control-custom:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 94, 158, 0.15);
            outline: none;
        }

        textarea.form-control-custom {
            min-height: 100px;
            resize: vertical;
        }

        .form-privacy {
            font-size: 0.8rem;
            color: var(--muted);
            line-height: 1.6;
            margin-top: 12px;
            margin-bottom: 0;
        }

        .form-privacy a {
            color: var(--primary);
            text-decoration: underline;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--dark);
            color: #B8C4D2;
            padding: 48px 0 32px;
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .footer-copyright {
            font-size: 0.85rem;
            color: #B8C4D2;
            margin-bottom: 8px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 16px;
            margin-bottom: 16px;
        }

        .footer-links a {
            color: #B8C4D2;
            text-decoration: none;
            font-size: 0.88rem;
            transition: color 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-legal {
            font-size: 0.8rem;
            color: #7a8a9a;
            margin-top: 12px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-legal span {
            white-space: nowrap;
        }

        @media (max-width: 576px) {
            .site-footer {
                padding: 36px 0 24px;
                font-size: 0.82rem;
            }

            .footer-links {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }

            .footer-legal {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        /* ========== UTILITY ========== */
        .text-primary-custom {
            color: var(--primary) !important;
        }

        .bg-primary-soft {
            background: var(--primary-soft);
        }

        .mt-0 {
            margin-top: 0 !important;
        }

        .mb-0 {
            margin-bottom: 0 !important;
        }

        .gap-2 {
            gap: 8px;
        }

        .gap-3 {
            gap: 16px;
        }

        @media (max-width: 576px) {
            h1 {
                font-size: 1.9rem;
            }

            h2 {
                font-size: 1.45rem;
            }

            h3 {
                font-size: 1.15rem;
            }

            .section-title {
                font-size: 1.45rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1B5E9E;
            --primary-light: #2E7BC4;
            --primary-soft: #E8F1FA;
            --primary-10: #D6E4F3;
            --dark: #0F1F33;
            --dark-2: #16283F;
            --body-text: #33404F;
            --muted: #6B7A8C;
            --muted-light: #8E9BAA;
            --bg-white: #FFFFFF;
            --bg-light: #F4F7FB;
            --border: #E3EAF2;
            --border-input: #D5DFE8;
            --gold: #C9A84C;
            --gold-soft: #F6EFD9;
            --shadow-sm: 0 2px 8px rgba(15, 31, 51, 0.06), 0 8px 24px rgba(15, 31, 51, 0.05);
            --shadow-hover: 0 4px 16px rgba(15, 31, 51, 0.10), 0 12px 32px rgba(15, 31, 51, 0.08);
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 8px;
            --radius-icon: 10px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --section-spacing: 80px;
            --section-spacing-mobile: 52px;
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--body-text);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }

        a:hover {
            color: #12467a;
            text-decoration: underline;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        .text-muted-custom {
            color: var(--muted) !important;
            font-size: 0.9rem;
        }

        .text-small {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }

        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: var(--section-spacing) 0;
            position: relative;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 0.8rem;
            border: 1px solid var(--primary-10);
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.4;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .bg-light-section {
            background-color: var(--bg-light);
        }

        .card-custom {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
        }

        .card-custom:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: background 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-custom:hover {
            background: #12467a;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(27, 94, 158, 0.25);
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: background 0.25s ease, color 0.25s ease;
        }

        .btn-outline-custom:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(15, 31, 51, 0.04);
        }

        .brand-topbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            text-decoration: none;
            letter-spacing: 0.06em;
            white-space: nowrap;
        }

        .brand-logo:hover {
            text-decoration: none;
            color: var(--dark);
        }

        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            border: 2px solid var(--primary-light);
            box-shadow: 0 2px 6px rgba(27, 94, 158, 0.25);
            flex-shrink: 0;
        }

        .brand-logo .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.04em;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .brand-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 6px 14px;
            color: var(--muted);
            font-size: 0.85rem;
            cursor: pointer;
            transition: border-color 0.2s;
            white-space: nowrap;
        }

        .brand-search:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }

        .brand-search i {
            font-size: 0.8rem;
        }

        .auth-buttons {
            display: flex;
            gap: 10px;
        }

        .btn-auth {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--body-text);
            border: 1px solid transparent;
            padding: 6px 14px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .btn-auth:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
            border-color: var(--primary-10);
        }

        .btn-auth-solid {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }

        .btn-auth-solid:hover {
            background: #12467a;
            color: #fff;
            border-color: #12467a;
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
            font-size: 1.1rem;
            color: var(--body-text);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .navbar-toggler-custom:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-icon-grid {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            padding: 0;
        }

        .nav-icon-grid #navGrid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 6px;
            padding: 8px 0;
            flex-wrap: wrap;
        }

        .nav-icon-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--muted);
            border-radius: var(--radius-input);
            transition: all 0.2s ease;
            min-width: 68px;
            text-align: center;
            text-decoration: none;
            position: relative;
        }

        .nav-icon-item i {
            font-size: 1.25rem;
            line-height: 1;
            transition: color 0.2s ease;
        }

        .nav-icon-item .nav-label {
            font-size: 0.8rem;
            line-height: 1.4;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .nav-icon-item:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
        }

        .nav-icon-item:hover i {
            color: var(--primary);
        }

        .nav-icon-item.active {
            background: var(--primary-soft);
            color: var(--primary);
            border: 1px solid var(--primary-10);
        }

        .nav-icon-item.active i {
            color: var(--primary);
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-wrapper {
            background: var(--bg-light);
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--muted);
            margin: 0;
            list-style: none;
            padding: 0;
            flex-wrap: wrap;
        }

        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-custom a {
            color: var(--primary);
            font-weight: 500;
        }

        .breadcrumb-custom a:hover {
            text-decoration: underline;
        }

        .breadcrumb-custom .separator {
            color: var(--muted-light);
            font-size: 0.7rem;
        }

        .breadcrumb-custom .current {
            color: var(--body-text);
            font-weight: 600;
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            padding: 56px 0 40px;
            background: #fff;
            position: relative;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 50%, var(--gold) 100%);
            opacity: 0.7;
        }

        .page-hero h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1.2rem;
            line-height: 1.3;
        }

        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: var(--muted);
            max-width: 760px;
            line-height: 1.85;
            margin-bottom: 1.5rem;
        }

        .hero-meta-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 1rem;
        }

        .hero-meta-tags .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--muted);
            background: var(--bg-light);
            border: 1px solid var(--border);
            padding: 4px 12px;
            border-radius: 16px;
        }

        .hero-meta-tags .tag-item i {
            font-size: 0.7rem;
            color: var(--gold);
        }

        /* ========== DATA KPI ========== */
        .data-kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 16px;
        }

        .kpi-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            position: relative;
            overflow: hidden;
            transition: all 0.25s ease;
        }

        .kpi-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            opacity: 0.9;
        }

        .kpi-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .kpi-number {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .kpi-name {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--dark);
            margin-top: 6px;
        }

        .kpi-desc {
            font-size: 0.82rem;
            color: var(--muted);
            margin-top: 8px;
            line-height: 1.6;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .deep-content-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 32px 28px;
        }

        .deep-content-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1.2rem;
            line-height: 1.4;
        }

        .deep-content-card p {
            font-size: 0.98rem;
            line-height: 1.9;
            color: var(--body-text);
            margin-bottom: 16px;
        }

        .deep-content-card p:last-child {
            margin-bottom: 0;
        }

        .content-image-wrap {
            border-radius: var(--radius-card);
            overflow: hidden;
            margin: 20px 0;
            border: 1px solid var(--border);
        }

        .content-image-wrap img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: 0;
        }

        .image-caption {
            font-size: 0.82rem;
            color: var(--muted);
            text-align: center;
            padding: 12px 16px;
            background: var(--bg-light);
            border-top: 1px solid var(--border);
            line-height: 1.6;
        }

        /* ========== SERVICE CARDS ========== */
        .service-grid-custom {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
        }

        .service-grid-custom .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }

        .service-grid-custom .service-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }

        .service-icon-box {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-icon);
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 16px;
            border: 1px solid var(--primary-10);
            flex-shrink: 0;
        }

        .service-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 0;
            flex-grow: 1;
        }

        /* ========== COMPARISON ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .comparison-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
        }

        .comparison-card.featured {
            border: 2px solid var(--primary);
            box-shadow: 0 4px 20px rgba(27, 94, 158, 0.15);
            position: relative;
        }

        .comparison-card.featured::before {
            content: "推荐方案";
            position: absolute;
            top: -12px;
            left: 24px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 12px;
            letter-spacing: 0.04em;
        }

        .comparison-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 16px;
        }

        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.9rem;
            line-height: 1.65;
            color: var(--body-text);
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-list li i {
            color: var(--primary);
            margin-top: 5px;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .comparison-list li i.fa-circle-xmark {
            color: var(--muted-light);
        }

        .comparison-vs {
            display: flex;
            align-items: center;
            justify-content: center;
            align-self: center;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--muted-light);
            background: var(--bg-light);
            border-radius: 50%;
            width: 56px;
            height: 56px;
            flex-shrink: 0;
            border: 1px solid var(--border);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-light);
        }

        .accordion-custom .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .accordion-custom .accordion-header .accordion-button {
            background: var(--bg-white);
            font-weight: 600;
            font-size: 1rem;
            color: var(--dark);
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            border-radius: var(--radius-card) !important;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .accordion-custom .accordion-header .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .accordion-custom .accordion-header .accordion-button::after {
            content: "\2b";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            background: none;
            font-size: 1.1rem;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .accordion-custom .accordion-header .accordion-button:not(.collapsed)::after {
            content: "\f068";
            transform: rotate(0deg);
        }

        .accordion-custom .accordion-header .accordion-button:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .accordion-custom .accordion-body {
            padding: 18px 22px;
            font-size: 0.92rem;
            color: var(--body-text);
            line-height: 1.8;
            background: var(--bg-white);
        }

        /* ========== CTA FORM ========== */
        .cta-section {
            background: var(--bg-white);
            position: relative;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-light), var(--primary) 60%, var(--gold));
            opacity: 0.6;
        }

        .cta-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 36px 32px;
            max-width: 760px;
            margin: 0 auto;
        }

        .cta-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            text-align: center;
        }

        .cta-card .cta-desc {
            font-size: 0.95rem;
            color: var(--muted);
            text-align: center;
            margin-bottom: 28px;
            line-height: 1.75;
        }

        .form-control-custom {
            border: 1px solid var(--border-input);
            border-radius: var(--radius-input);
            padding: 12px 16px;
            font-size: 0.95rem;
            font-family: var(--font-sans);
            color: var(--body-text);
            width: 100%;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            background: var(--bg-white);
        }

        .form-control-custom:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(27, 94, 158, 0.12);
        }

        .form-control-custom::placeholder {
            color: var(--muted-light);
            font-size: 0.9rem;
        }

        .form-label-custom {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
            display: block;
        }

        .privacy-note {
            font-size: 0.8rem;
            color: var(--muted);
            text-align: center;
            margin-top: 18px;
            line-height: 1.6;
        }

        .privacy-note a {
            color: var(--primary);
            text-decoration: underline;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--dark);
            color: #B8C4D2;
            padding: 48px 0 32px;
            margin-top: 0;
        }

        .footer-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.08em;
            margin-bottom: 12px;
        }

        .footer-copyright {
            font-size: 0.9rem;
            color: #B8C4D2;
            margin-bottom: 16px;
            line-height: 1.7;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .footer-links a {
            color: #B8C4D2;
            font-size: 0.9rem;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-legal {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: #8E9BAA;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 18px;
        }

        .footer-legal span {
            white-space: nowrap;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 991.98px) {
            .brand-search {
                display: none;
            }

            .data-kpi-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .service-grid-custom {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .comparison-vs {
                width: 48px;
                height: 48px;
                font-size: 1rem;
                margin: 0 auto;
            }

            .section-title {
                font-size: 1.45rem;
            }

            .page-hero h1 {
                font-size: 2rem;
            }

            .brand-topbar {
                padding: 0 18px;
                height: 56px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --section-spacing: 64px;
            }

            .navbar-toggler-custom {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .auth-buttons {
                display: none;
            }

            .nav-icon-grid #navGrid {
                display: none;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 4px;
                padding: 12px 0;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s ease;
            }

            .nav-icon-grid #navGrid.open {
                display: flex;
                max-height: 400px;
            }

            .nav-icon-item {
                min-width: calc(50% - 8px);
                flex-direction: row;
                justify-content: flex-start;
                padding: 10px 16px;
                gap: 12px;
            }

            .nav-icon-item i {
                font-size: 1.1rem;
            }

            .nav-icon-item .nav-label {
                font-size: 0.82rem;
                white-space: normal;
            }

            .data-kpi-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .kpi-number {
                font-size: 2.2rem;
            }

            .page-hero {
                padding: 40px 0 28px;
            }

            .page-hero h1 {
                font-size: 1.8rem;
            }

            .page-hero .hero-subtitle {
                font-size: 1rem;
            }

            .cta-card {
                padding: 28px 20px;
            }

            .footer-links {
                gap: 12px;
            }

            .footer-legal {
                flex-direction: column;
                gap: 8px;
            }

            .container-custom {
                padding: 0 16px;
            }

            .brand-topbar {
                padding: 0 16px;
            }

            .comparison-card.featured::before {
                left: 16px;
                font-size: 0.7rem;
            }

            .deep-content-card {
                padding: 24px 18px;
            }

            .service-grid-custom .service-card {
                padding: 22px 18px;
            }
        }

        @media (max-width: 575.98px) {
            :root {
                --section-spacing: 48px;
            }

            .brand-topbar {
                height: 52px;
                padding: 0 12px;
            }

            .brand-logo .logo-text {
                font-size: 1.15rem;
            }

            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }

            .page-hero h1 {
                font-size: 1.6rem;
                line-height: 1.35;
            }

            .section-title {
                font-size: 1.3rem;
            }

            .kpi-card {
                padding: 22px 18px;
            }

            .kpi-number {
                font-size: 2rem;
            }

            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }

            .cta-card h2 {
                font-size: 1.3rem;
            }

            .breadcrumb-custom {
                font-size: 0.78rem;
                gap: 6px;
            }

            .footer-legal {
                font-size: 0.75rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1B5E9E;
            --primary-light: #2E7BC4;
            --primary-soft: #E8F1FA;
            --primary-10: #D6E4F3;
            --dark: #0F1F33;
            --dark-2: #16283F;
            --body-text: #33404F;
            --muted: #6B7A8C;
            --muted-light: #8E9BAA;
            --bg-white: #FFFFFF;
            --bg-light: #F4F7FB;
            --border: #E3EAF2;
            --border-input: #D5DFE8;
            --gold: #C9A84C;
            --gold-soft: #F6EFD9;
            --shadow-sm: 0 2px 8px rgba(15, 31, 51, 0.06), 0 8px 24px rgba(15, 31, 51, 0.05);
            --shadow-hover: 0 4px 16px rgba(15, 31, 51, 0.10), 0 12px 32px rgba(15, 31, 51, 0.08);
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 8px;
            --radius-icon: 10px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --section-spacing: 80px;
            --section-spacing-mobile: 52px;
            --container-max: 1200px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--body-text);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }

        a:hover {
            color: #12467a;
            text-decoration: underline;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: var(--section-spacing) 0;
            position: relative;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 0.8rem;
            border: 1px solid var(--primary-10);
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.45;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            margin-bottom: 2rem;
            line-height: 1.85;
        }

        .bg-light-section {
            background-color: var(--bg-light);
        }

        /* ==================== HEADER ==================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(15, 31, 51, 0.04);
        }

        .brand-topbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 64px;
            padding: 6px 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            text-decoration: none;
            letter-spacing: 0.06em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo:hover {
            text-decoration: none;
            color: var(--dark);
        }

        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            border: 2px solid var(--primary-light);
            box-shadow: 0 2px 6px rgba(27, 94, 158, 0.25);
            flex-shrink: 0;
        }

        .brand-logo .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.04em;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .brand-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 6px 14px;
            color: var(--muted);
            font-size: 0.85rem;
            cursor: pointer;
            transition: border-color 0.2s;
            white-space: nowrap;
        }

        .brand-search:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }

        .brand-search i {
            font-size: 0.8rem;
        }

        .auth-buttons {
            display: flex;
            gap: 10px;
        }

        .btn-auth {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--primary-10);
            background: var(--bg-white);
            transition: all 0.2s ease;
            white-space: nowrap;
            min-height: 36px;
        }

        .btn-auth:hover {
            background: var(--primary-soft);
            text-decoration: none;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-auth-solid {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .btn-auth-solid:hover {
            background: #15528a;
            color: #fff;
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 1.1rem;
            color: var(--dark);
            cursor: pointer;
            transition: all 0.2s ease;
            min-width: 44px;
            min-height: 44px;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler-custom:hover {
            background: var(--bg-light);
            border-color: var(--primary-light);
        }

        .nav-icon-grid {
            border-top: 1px solid var(--border);
            background: var(--bg-white);
            padding: 4px 0;
        }

        .nav-icon-grid .container-custom {
            display: flex;
            align-items: stretch;
            justify-content: flex-start;
            gap: 4px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            padding-top: 2px;
            padding-bottom: 2px;
        }

        .nav-icon-grid .container-custom::-webkit-scrollbar {
            display: none;
        }

        .nav-icon-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            min-width: 72px;
            padding: 8px 10px;
            border-radius: 10px;
            color: var(--muted);
            font-size: 0.78rem;
            text-decoration: none;
            transition: all 0.2s ease;
            white-space: nowrap;
            flex-shrink: 0;
            border: 1px solid transparent;
        }

        .nav-icon-item i {
            font-size: 1.05rem;
            transition: color 0.2s ease;
        }

        .nav-icon-item .nav-label {
            font-size: 0.78rem;
            font-weight: 500;
            line-height: 1.2;
        }

        .nav-icon-item:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
            border-color: var(--primary-10);
        }

        .nav-icon-item:hover i {
            color: var(--primary);
        }

        .nav-icon-item.active {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary);
        }

        .nav-icon-item.active i {
            color: var(--primary);
        }

        .nav-icon-item.active .nav-label {
            font-weight: 600;
            color: var(--primary);
        }

        /* ==================== BREADCRUMB + HERO ==================== */
        .category-hero {
            background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
            padding: 32px 0 56px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(27, 94, 158, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--muted);
            text-decoration: none;
            transition: color 0.2s;
        }

        .breadcrumb-custom a:hover {
            color: var(--primary);
            text-decoration: underline;
        }

        .breadcrumb-custom .sep {
            color: var(--muted-light);
            font-size: 0.75rem;
        }

        .breadcrumb-custom .current {
            color: var(--primary);
            font-weight: 600;
        }

        .category-hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .category-hero-content h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.35;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

        .category-hero-content h1 .highlight {
            color: var(--primary);
        }

        .category-hero-desc {
            font-size: 1.05rem;
            color: var(--muted);
            line-height: 1.85;
            margin-bottom: 1.8rem;
            max-width: 560px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: all 0.25s ease;
            text-decoration: none;
            min-height: 48px;
            justify-content: center;
        }

        .btn-primary-custom:hover {
            background: #15528a;
            border-color: #15528a;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            background: var(--bg-white);
            color: var(--primary);
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: all 0.25s ease;
            text-decoration: none;
            min-height: 48px;
            justify-content: center;
        }

        .btn-secondary-custom:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
            border-color: var(--primary);
            transform: translateY(-1px);
        }

        .hero-illustration {
            background: var(--bg-white);
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            position: relative;
            aspect-ratio: 4/3;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: flex-end;
            justify-content: center;
            padding: 20px;
        }

        .hero-illustration-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 31, 51, 0.15) 0%, rgba(15, 31, 51, 0.65) 100%);
            border-radius: 16px;
        }

        .hero-illustration-text {
            position: relative;
            z-index: 2;
            color: #fff;
            text-align: center;
            font-weight: 600;
            font-size: 0.95rem;
            background: rgba(15, 31, 51, 0.55);
            backdrop-filter: blur(8px);
            padding: 12px 20px;
            border-radius: 10px;
            letter-spacing: 0.04em;
        }

        /* ==================== SERVICE OVERVIEW ==================== */
        .overview-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .overview-text h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.45;
        }

        .overview-text p {
            color: var(--body-text);
            line-height: 1.9;
            margin-bottom: 1.2rem;
            font-size: 0.98rem;
        }

        .overview-image {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            aspect-ratio: 16/10;
        }

        .overview-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 16px;
        }

        .overview-image .image-caption {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(15, 31, 51, 0.7);
            backdrop-filter: blur(6px);
            color: #fff;
            padding: 6px 14px;
            border-radius: 8px;
            font-size: 0.8rem;
            letter-spacing: 0.03em;
        }

        /* ==================== METRICS BOARD ==================== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }

        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }

        .metric-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }

        .metric-name {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 4px;
        }

        .metric-desc {
            font-size: 0.82rem;
            color: var(--muted);
            line-height: 1.6;
        }

        /* ==================== TECH FEATURES - ASYMMETRIC ==================== */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 18px;
        }

        .tech-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .tech-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }

        .tech-card .tech-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-icon);
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.1rem;
            margin-bottom: 4px;
            transition: background 0.2s;
        }

        .tech-card:hover .tech-icon {
            background: var(--primary-10);
        }

        .tech-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--dark);
            line-height: 1.4;
            margin: 0;
        }

        .tech-card p {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
        }

        .tech-card.span-2 {
            grid-column: span 2;
        }

        .tech-card.span-3 {
            grid-column: span 3;
        }

        /* ==================== MATCH SCHEDULE ==================== */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .schedule-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 22px;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s ease;
            flex-wrap: wrap;
        }

        .schedule-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-hover);
        }

        .schedule-date {
            min-width: 110px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 6px 14px;
            border-radius: 8px;
            text-align: center;
            flex-shrink: 0;
        }

        .schedule-info {
            flex: 1;
            min-width: 200px;
        }

        .schedule-info h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 2px;
        }

        .schedule-info p {
            font-size: 0.85rem;
            color: var(--muted);
            margin: 0;
        }

        .schedule-tag {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--muted);
            background: var(--bg-light);
            border: 1px solid var(--border);
            padding: 4px 12px;
            border-radius: 16px;
            white-space: nowrap;
        }

        .schedule-action {
            flex-shrink: 0;
        }

        .btn-sm-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            min-height: 38px;
        }

        .btn-sm-custom:hover {
            background: #15528a;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }

        /* ==================== IN-DEPTH ARTICLE ==================== */
        .article-panel {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 36px 40px;
            box-shadow: var(--shadow-sm);
            max-width: 860px;
            margin: 0 auto;
        }

        .article-panel h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1.2rem;
            line-height: 1.45;
        }

        .article-panel h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 0.8rem;
            margin-top: 1.4rem;
            line-height: 1.45;
        }

        .article-panel p {
            color: var(--body-text);
            line-height: 1.9;
            margin-bottom: 1.1rem;
            font-size: 0.97rem;
        }

        .article-panel blockquote {
            border-left: 4px solid var(--primary);
            padding: 14px 20px;
            margin: 1.2rem 0;
            background: var(--bg-light);
            border-radius: 0 10px 10px 0;
            color: var(--body-text);
            font-size: 0.95rem;
            line-height: 1.85;
        }

        /* ==================== VIEWING SCENES ==================== */
        .scene-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .scene-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }

        .scene-card .scene-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .scene-card .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

        .scene-card:hover .scene-img img {
            transform: scale(1.04);
        }

        .scene-card .scene-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .scene-card .scene-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            margin: 0;
        }

        .scene-card .scene-body p {
            font-size: 0.88rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ==================== FAQ ==================== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 10px;
            overflow: hidden;
            transition: all 0.2s ease;
        }

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 22px;
            cursor: pointer;
            font-weight: 600;
            color: var(--dark);
            font-size: 1rem;
            min-height: 52px;
            transition: background 0.2s;
            user-select: none;
            -webkit-user-select: none;
        }

        .faq-question:hover {
            background: var(--bg-light);
        }

        .faq-question .faq-icon {
            font-size: 1.1rem;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 600px;
        }

        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 0.92rem;
            color: var(--body-text);
            line-height: 1.85;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        /* ==================== CTA FORM ==================== */
        .cta-form-section {
            background: var(--bg-light);
        }

        .cta-form-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 36px 36px;
            box-shadow: var(--shadow-sm);
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-form-card h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.6rem;
            text-align: center;
        }

        .cta-form-card .cta-desc {
            font-size: 0.92rem;
            color: var(--muted);
            text-align: center;
            margin-bottom: 1.6rem;
            line-height: 1.7;
        }

        .form-label-custom {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
            display: block;
        }

        .form-control-custom {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-input);
            border-radius: var(--radius-input);
            font-size: 0.92rem;
            color: var(--body-text);
            background: var(--bg-white);
            transition: border-color 0.2s, box-shadow 0.2s;
            font-family: var(--font-sans);
            min-height: 44px;
        }

        .form-control-custom:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 94, 158, 0.12);
        }

        textarea.form-control-custom {
            min-height: 100px;
            resize: vertical;
        }

        .btn-submit-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            background: var(--primary);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            width: 100%;
            min-height: 48px;
            font-family: var(--font-sans);
        }

        .btn-submit-custom:hover {
            background: #15528a;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
            color: #fff;
        }

        .cta-privacy {
            font-size: 0.78rem;
            color: var(--muted-light);
            text-align: center;
            margin-top: 12px;
        }

        /* ==================== FOOTER ==================== */
        .site-footer {
            background: var(--dark);
            color: #B8C4D2;
            padding: 40px 0 32px;
        }

        .site-footer .container-custom {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
            text-align: center;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.08em;
        }

        .footer-copyright {
            font-size: 0.88rem;
            color: #B8C4D2;
            margin: 0;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .footer-links a {
            color: #B8C4D2;
            text-decoration: none;
            font-size: 0.88rem;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-legal {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
            font-size: 0.82rem;
            color: #8E9BAA;
        }

        .footer-legal span {
            color: #8E9BAA;
        }

        /* ==================== RESPONSIVE ==================== */
        @media (max-width: 992px) {
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .entry-content h1 {
                font-size: 2rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .tech-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tech-card.span-2,
            .tech-card.span-3 {
                grid-column: span 2;
            }
            .overview-wrapper {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            section {
                padding: 56px 0;
            }
        }

        @media (max-width: 768px) {
            .brand-topbar {
                padding: 4px 16px;
                min-height: 56px;
            }
            .brand-search {
                display: none;
            }
            .navbar-toggler-custom {
                display: inline-flex;
            }
            .nav-icon-grid .container-custom {
                padding: 4px 12px;
                gap: 2px;
            }
            .nav-icon-item {
                min-width: 64px;
                padding: 6px 8px;
                font-size: 0.72rem;
            }
            .nav-icon-item i {
                font-size: 0.95rem;
            }
            .nav-icon-item .nav-label {
                font-size: 0.7rem;
            }
            .category-hero {
                padding: 24px 0 40px;
            }
            .entry-content h1 {
                font-size: 1.7rem;
            }
            .category-hero-desc {
                font-size: 0.95rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-number {
                font-size: 1.9rem;
            }
            .metric-card {
                padding: 20px 16px;
            }
            .tech-grid {
                grid-template-columns: 1fr;
            }
            .tech-card.span-2,
            .tech-card.span-3 {
                grid-column: span 1;
            }
            .schedule-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 16px;
            }
            .schedule-date {
                min-width: auto;
            }
            .article-panel {
                padding: 24px 20px;
            }
            .article-panel h2 {
                font-size: 1.3rem;
            }
            .cta-form-card {
                padding: 24px 20px;
            }
            .container-custom {
                padding: 0 16px;
            }
            section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .hero-illustration {
                aspect-ratio: 16/10;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }
            .brand-topbar {
                gap: 8px;
            }
            .brand-logo .logo-text {
                font-size: 1.05rem;
            }
            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }
            .auth-buttons .btn-auth {
                padding: 5px 10px;
                font-size: 0.78rem;
                min-height: 32px;
            }
            .nav-icon-item {
                min-width: 56px;
                padding: 6px 4px;
            }
            .nav-icon-item .nav-label {
                font-size: 0.65rem;
            }
            .category-hero-content h1 {
                font-size: 1.5rem;
            }
            .category-hero-desc {
                font-size: 0.88rem;
                line-height: 1.7;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                width: 100%;
                justify-content: center;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .metric-number {
                font-size: 1.7rem;
            }
            .metric-card {
                padding: 16px;
            }
            .schedule-action {
                width: 100%;
            }
            .btn-sm-custom {
                width: 100%;
                justify-content: center;
            }
            .article-panel blockquote {
                padding: 10px 14px;
                font-size: 0.88rem;
            }
            .footer-links {
                gap: 12px;
                font-size: 0.8rem;
            }
            .footer-legal {
                gap: 8px;
                font-size: 0.75rem;
            }
            .cta-form-card h2 {
                font-size: 1.2rem;
            }
            .form-control-custom {
                font-size: 0.88rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1B5E9E;
            --primary-light: #2E7BC4;
            --primary-soft: #E8F1FA;
            --primary-10: #D6E4F3;
            --dark: #0F1F33;
            --dark-2: #16283F;
            --body-text: #33404F;
            --muted: #6B7A8C;
            --muted-light: #8E9BAA;
            --bg-white: #FFFFFF;
            --bg-light: #F4F7FB;
            --border: #E3EAF2;
            --border-input: #D5DFE8;
            --gold: #C9A84C;
            --gold-soft: #F6EFD9;
            --shadow-sm: 0 2px 8px rgba(15, 31, 51, 0.06), 0 8px 24px rgba(15, 31, 51, 0.05);
            --shadow-hover: 0 4px 16px rgba(15, 31, 51, 0.10), 0 12px 32px rgba(15, 31, 51, 0.08);
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 8px;
            --radius-icon: 10px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --section-spacing: 80px;
            --section-spacing-mobile: 52px;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--body-text);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }
        a:hover {
            color: #12467a;
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        .text-muted-custom {
            color: var(--muted) !important;
            font-size: 0.9rem;
        }
        .text-small {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }
        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 576px) {
            .container-custom {
                padding: 0 18px;
            }
        }
        section {
            padding: var(--section-spacing) 0;
            position: relative;
        }
        @media (max-width: 576px) {
            section {
                padding: var(--section-spacing-mobile) 0;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 0.8rem;
            border: 1px solid var(--primary-10);
        }
        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.4;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        .bg-light-section {
            background-color: var(--bg-light);
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(15, 31, 51, 0.04);
        }
        .brand-topbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }
        @media (max-width: 576px) {
            .brand-topbar {
                padding: 0 14px;
                height: 56px;
            }
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            text-decoration: none;
            letter-spacing: 0.06em;
            white-space: nowrap;
        }
        .brand-logo:hover {
            text-decoration: none;
            color: var(--dark);
        }
        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            border: 2px solid var(--primary-light);
            box-shadow: 0 2px 6px rgba(27, 94, 158, 0.25);
            flex-shrink: 0;
        }
        .brand-logo .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.04em;
        }
        @media (max-width: 576px) {
            .brand-logo .logo-text {
                font-size: 1.1rem;
            }
            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        @media (max-width: 576px) {
            .brand-actions {
                gap: 8px;
            }
        }
        .brand-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 6px 14px;
            color: var(--muted);
            font-size: 0.85rem;
            cursor: pointer;
            transition: border-color 0.2s, color 0.2s, background-color 0.2s;
            white-space: nowrap;
        }
        .brand-search:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: #f0f5fa;
        }
        .brand-search i {
            font-size: 0.8rem;
        }
        @media (max-width: 768px) {
            .brand-search {
                display: none;
            }
        }
        .auth-buttons {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .btn-auth {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--primary);
            background: transparent;
            border: 1px solid var(--primary-10);
            border-radius: var(--radius-btn);
            padding: 6px 16px;
            min-height: 36px;
            text-decoration: none;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .btn-auth:hover {
            background: var(--primary-soft);
            border-color: var(--primary-light);
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-1px);
        }
        .btn-auth-solid {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-auth-solid:hover {
            background: #12467a;
            border-color: #12467a;
            color: #fff;
            transform: translateY(-1px);
        }
        @media (max-width: 576px) {
            .btn-auth {
                padding: 5px 10px;
                font-size: 0.78rem;
                min-height: 32px;
            }
        }
        .navbar-toggler-custom {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            background: var(--bg-white);
            color: var(--dark);
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s, border-color 0.2s, color 0.2s;
            padding: 0;
        }
        .navbar-toggler-custom:hover {
            background: var(--bg-light);
            border-color: var(--primary-light);
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .navbar-toggler-custom {
                display: inline-flex;
            }
        }

        .nav-icon-grid {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
        }
        .nav-icon-grid .container-custom {
            display: flex;
            align-items: center;
            justify-content: flex-start;
            gap: 4px;
            flex-wrap: wrap;
            padding-top: 6px;
            padding-bottom: 6px;
        }
        .nav-icon-item {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            padding: 8px 18px;
            min-width: 72px;
            border-radius: var(--radius-icon);
            color: var(--muted);
            font-size: 0.82rem;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.2s ease;
            position: relative;
            cursor: pointer;
        }
        .nav-icon-item i {
            font-size: 1.15rem;
            color: var(--muted-light);
            transition: color 0.2s ease;
        }
        .nav-icon-item .nav-label {
            line-height: 1.3;
            text-align: center;
            font-size: 0.8rem;
        }
        .nav-icon-item:hover {
            background: var(--bg-light);
            color: var(--primary);
            text-decoration: none;
        }
        .nav-icon-item:hover i {
            color: var(--primary);
        }
        .nav-icon-item.active {
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 600;
        }
        .nav-icon-item.active i {
            color: var(--primary);
        }
        .nav-icon-item.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 20%;
            width: 60%;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }
        @media (max-width: 768px) {
            .nav-icon-grid .container-custom {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding: 12px 18px;
            }
            .nav-icon-grid .container-custom.show {
                display: flex;
            }
            .nav-icon-item {
                flex-direction: row;
                align-items: center;
                justify-content: flex-start;
                gap: 12px;
                padding: 12px 16px;
                min-height: 44px;
                font-size: 0.9rem;
                border-radius: var(--radius-icon);
            }
            .nav-icon-item i {
                font-size: 1.1rem;
                width: 24px;
                text-align: center;
            }
            .nav-icon-item .nav-label {
                font-size: 0.9rem;
                text-align: left;
            }
            .nav-icon-item.active::after {
                display: none;
            }
            .nav-icon-item.active {
                border-left: 3px solid var(--primary);
                border-radius: 0 8px 8px 0;
            }
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--bg-light);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--muted);
            margin: 0;
            list-style: none;
            padding: 0;
            flex-wrap: wrap;
        }
        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-custom li + li::before {
            content: '/';
            color: var(--muted-light);
            margin-right: 4px;
        }
        .breadcrumb-custom a {
            color: var(--muted);
            text-decoration: none;
            transition: color 0.2s;
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb-custom .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== HERO INTERNAL ========== */
        .hero-internal {
            padding: 60px 0 60px;
            background-color: var(--bg-white);
            position: relative;
            overflow: hidden;
        }
        .hero-internal::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(27, 94, 158, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-internal-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
        }
        @media (max-width: 768px) {
            .hero-internal-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .hero-internal h1 {
            font-size: 2.3rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1.2rem;
            line-height: 1.35;
        }
        @media (max-width: 576px) {
            .hero-internal h1 {
                font-size: 1.7rem;
            }
        }
        .hero-internal .hero-desc {
            font-size: 1.02rem;
            color: var(--muted);
            line-height: 1.85;
            margin-bottom: 1.8rem;
            max-width: 580px;
        }
        .hero-internal .hero-image-wrap {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .hero-internal .hero-image-wrap img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            border-radius: 0;
        }
        @media (max-width: 768px) {
            .hero-internal .hero-image-wrap img {
                height: 220px;
            }
        }
        .hero-internal .hero-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 36px 20px 18px;
            background: linear-gradient(to top, rgba(15, 31, 51, 0.75) 0%, transparent 100%);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            border-radius: 0;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.25s ease;
            min-height: 44px;
        }
        .btn-primary-custom:hover {
            background: #12467a;
            border-color: #12467a;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(27, 94, 158, 0.25);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.25s ease;
            min-height: 44px;
        }
        .btn-outline-custom:hover {
            background: var(--primary-soft);
            border-color: var(--primary-light);
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-1px);
        }

        /* ========== HERO CTA GROUP ========== */
        .cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        /* ========== CARD BASE ========== */
        .card-custom {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            transition: all 0.3s ease;
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-icon);
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 1.25rem;
            margin-bottom: 14px;
            flex-shrink: 0;
            transition: all 0.3s ease;
        }
        .card-custom:hover .card-icon {
            background: var(--primary);
            color: #fff;
        }
        .card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .card-text {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ========== STATS ========== */
        .stats-panel {
            background: var(--dark);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            box-shadow: var(--shadow-sm);
        }
        @media (max-width: 768px) {
            .stats-panel {
                grid-template-columns: repeat(2, 1fr);
                padding: 28px 20px;
            }
        }
        @media (max-width: 576px) {
            .stats-panel {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }
        .stat-item {
            text-align: center;
            padding: 14px 10px;
            border-right: 1px solid rgba(255, 255, 255, 0.12);
        }
        .stat-item:last-child {
            border-right: none;
        }
        @media (max-width: 768px) {
            .stat-item:nth-child(2) {
                border-right: none;
            }
        }
        @media (max-width: 576px) {
            .stat-item {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            }
            .stat-item:last-child {
                border-bottom: none;
            }
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
            line-height: 1.2;
        }
        .stat-number .stat-suffix {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--gold);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 0.95rem;
            font-weight: 500;
            color: #B8C4D2;
            margin-bottom: 4px;
        }
        .stat-desc {
            font-size: 0.8rem;
            color: #8E9BAA;
            line-height: 1.5;
        }

        /* ========== PROGRAMS GRID ========== */
        .programs-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }
        .program-card-wide {
            grid-column: span 7;
        }
        .program-card-narrow {
            grid-column: span 5;
        }
        .program-card-full {
            grid-column: span 12;
        }
        @media (max-width: 768px) {
            .program-card-wide,
            .program-card-narrow,
            .program-card-full {
                grid-column: span 12;
            }
        }
        .program-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 32px 28px;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .program-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .program-card .program-header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
        }
        .program-card .program-title {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--dark);
            margin: 0;
        }
        .program-card .program-badge {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            border: 1px solid var(--primary-10);
            border-radius: 20px;
            padding: 3px 12px;
            margin-left: auto;
            flex-shrink: 0;
        }
        .program-card .program-text {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.8;
            flex-grow: 1;
        }
        .program-card .program-link {
            margin-top: 16px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
        }
        .program-card .program-link:hover {
            color: #12467a;
            text-decoration: underline;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 40px 36px;
        }
        @media (max-width: 576px) {
            .deep-content {
                padding: 24px 18px;
            }
        }
        .deep-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .deep-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--dark);
            margin-top: 24px;
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .deep-content p {
            font-size: 1rem;
            color: var(--body-text);
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .deep-content blockquote {
            border-left: 3px solid var(--primary);
            background: var(--bg-light);
            padding: 16px 20px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
            font-size: 0.95rem;
            color: var(--body-text);
            line-height: 1.8;
        }
        .deep-content img {
            width: 100%;
            height: auto;
            margin: 20px 0 8px;
            border-radius: var(--radius-card);
            object-fit: cover;
            aspect-ratio: 16/7;
        }
        .deep-content .img-caption {
            font-size: 0.82rem;
            color: var(--muted);
            margin-bottom: 20px;
            text-align: left;
            font-style: normal;
        }

        /* ========== PATH TIMELINE ========== */
        .path-timeline {
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 20px;
            padding-left: 32px;
        }
        .path-timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--primary-10);
            border-radius: 1px;
        }
        .path-item {
            position: relative;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 20px 24px;
            transition: all 0.3s ease;
        }
        .path-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .path-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 24px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid var(--bg-white);
            box-shadow: 0 0 0 2px var(--primary-10);
        }
        .path-item .path-name {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .path-item .path-desc {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 0;
        }
        .path-item .path-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--gold);
            background: var(--gold-soft);
            border-radius: 4px;
            padding: 2px 10px;
            margin-left: 8px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background-color: var(--bg-light);
        }
        .faq-accordion .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .faq-accordion .accordion-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-accordion .accordion-button {
            background: var(--bg-white);
            color: var(--dark);
            font-weight: 600;
            font-size: 1rem;
            line-height: 1.5;
            padding: 18px 20px;
            border: none;
            box-shadow: none;
            border-radius: 0;
            transition: all 0.2s ease;
            cursor: pointer;
            position: relative;
            width: 100%;
            text-align: left;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-soft);
            color: var(--primary);
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }
        .faq-accordion .accordion-button::after {
            content: '+';
            background-image: none;
            position: absolute;
            right: 18px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.4rem;
            font-weight: 400;
            color: var(--primary);
            transition: transform 0.3s ease;
            width: auto;
            height: auto;
            line-height: 1;
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            content: '−';
            transform: translateY(-50%) rotate(0deg);
        }
        .faq-accordion .accordion-body {
            padding: 16px 20px 20px;
            font-size: 0.95rem;
            color: var(--body-text);
            line-height: 1.8;
            border-top: 1px solid var(--border);
        }

        /* ========== FORM ========== */
        .form-card {
            background: var(--bg-white);
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 36px 32px;
            max-width: 680px;
            margin: 0 auto;
        }
        @media (max-width: 576px) {
            .form-card {
                padding: 24px 18px;
            }
        }
        .form-card .form-title {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .form-card .form-subtitle {
            font-size: 0.92rem;
            color: var(--muted);
            margin-bottom: 24px;
        }
        .form-card .form-label {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .form-card .form-control {
            border: 1px solid var(--border-input);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            font-size: 0.95rem;
            color: var(--body-text);
            background: var(--bg-white);
            transition: border-color 0.2s, box-shadow 0.2s;
            min-height: 44px;
        }
        .form-card .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 94, 158, 0.15);
            outline: none;
        }
        .form-card textarea.form-control {
            min-height: 100px;
            resize: vertical;
        }
        .form-card .btn-submit {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 11px 32px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
            min-height: 46px;
            min-width: 140px;
        }
        .form-card .btn-submit:hover {
            background: #12467a;
            border-color: #12467a;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(27, 94, 158, 0.25);
        }
        .form-card .privacy-note {
            font-size: 0.8rem;
            color: var(--muted-light);
            margin-top: 12px;
            line-height: 1.6;
        }

        /* ========== CTA STRIP ========== */
        .cta-strip {
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }
        @media (max-width: 768px) {
            .cta-strip {
                padding: 32px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
        }
        .cta-strip .cta-strip-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .cta-strip .cta-strip-text {
            font-size: 0.95rem;
            color: #B8C4D2;
            line-height: 1.7;
            max-width: 480px;
        }
        .btn-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--dark);
            border: 1px solid #fff;
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.25s ease;
            min-height: 44px;
        }
        .btn-light-custom:hover {
            background: var(--primary-soft);
            border-color: var(--primary-light);
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-1px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0F1F33;
            color: #B8C4D2;
            padding: 48px 0 0;
            margin-top: 0;
        }
        .site-footer .container-custom {
            display: flex;
            flex-direction: column;
            gap: 20px;
            padding-bottom: 32px;
        }
        .footer-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.06em;
        }
        .footer-copyright {
            font-size: 0.85rem;
            color: #8E9BAA;
            margin: 0;
            line-height: 1.7;
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        .footer-links a {
            color: #B8C4D2;
            font-size: 0.88rem;
            text-decoration: none;
            transition: color 0.2s, text-decoration 0.2s;
        }
        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-legal {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
            font-size: 0.8rem;
            color: #8E9BAA;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
        }
        .footer-legal span {
            white-space: nowrap;
        }
        @media (max-width: 576px) {
            .site-footer {
                padding: 32px 0 0;
            }
            .site-footer .container-custom {
                padding-bottom: 24px;
            }
            .footer-links {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .footer-legal {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        /* ========== MISC ========== */
        .icon-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .icon-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 0.95rem;
            color: var(--body-text);
            line-height: 1.7;
        }
        .icon-list li i {
            color: var(--primary);
            font-size: 0.9rem;
            margin-top: 6px;
            flex-shrink: 0;
        }
        .icon-list li.gold-highlight i {
            color: var(--gold);
        }
        .tag-badge {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--muted);
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 4px;
            padding: 2px 10px;
            margin-right: 6px;
            margin-bottom: 4px;
        }
        .tag-badge:hover {
            color: var(--primary);
            border-color: var(--primary-10);
            background: var(--primary-soft);
        }
        .divider-light {
            height: 1px;
            background: var(--border);
            margin: 20px 0;
            border: none;
        }
        .text-highlight {
            color: var(--primary);
            font-weight: 600;
        }

        @media (max-width: 576px) {
            body {
                font-size: 15px;
                line-height: 1.75;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .hero-internal {
                padding: 40px 0;
            }
            .deep-content {
                padding: 20px 16px;
            }
            .deep-content p {
                font-size: 0.95rem;
            }
            .stat-number {
                font-size: 1.9rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1B5E9E;
            --primary-light: #2E7BC4;
            --primary-soft: #E8F1FA;
            --primary-10: #D6E4F3;
            --dark: #0F1F33;
            --dark-2: #16283F;
            --body-text: #33404F;
            --muted: #6B7A8C;
            --muted-light: #8E9BAA;
            --bg-white: #FFFFFF;
            --bg-light: #F4F7FB;
            --border: #E3EAF2;
            --border-input: #D5DFE8;
            --gold: #C9A84C;
            --gold-soft: #F6EFD9;
            --shadow-sm: 0 2px 8px rgba(15, 31, 51, 0.06), 0 8px 24px rgba(15, 31, 51, 0.05);
            --shadow-hover: 0 4px 16px rgba(15, 31, 51, 0.10), 0 12px 32px rgba(15, 31, 51, 0.08);
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 8px;
            --radius-icon: 10px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --section-spacing: 80px;
            --section-spacing-mobile: 52px;
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--body-text);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }
        a:hover {
            color: #12467a;
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        .text-muted-custom {
            color: var(--muted) !important;
            font-size: 0.9rem;
        }
        .text-small {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }
        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-spacing) 0;
            position: relative;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 0.8rem;
            border: 1px solid var(--primary-10);
        }
        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.4;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        .bg-light-section {
            background-color: var(--bg-light);
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(15, 31, 51, 0.04);
        }
        .brand-topbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            text-decoration: none;
            letter-spacing: 0.06em;
            white-space: nowrap;
        }
        .brand-logo:hover {
            text-decoration: none;
            color: var(--dark);
        }
        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            border: 2px solid var(--primary-light);
            box-shadow: 0 2px 6px rgba(27, 94, 158, 0.25);
            flex-shrink: 0;
        }
        .brand-logo .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.04em;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .brand-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 6px 14px;
            color: var(--muted);
            font-size: 0.85rem;
            cursor: pointer;
            transition: border-color 0.2s;
            white-space: nowrap;
        }
        .brand-search:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }
        .brand-search i {
            font-size: 0.8rem;
        }
        .auth-buttons {
            display: flex;
            gap: 10px;
        }
        .btn-auth {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 500;
            border-radius: 20px;
            border: 1px solid var(--border);
            color: var(--body-text);
            background: var(--bg-white);
            text-decoration: none;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .btn-auth:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            text-decoration: none;
            background: var(--primary-soft);
        }
        .btn-auth-solid {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .btn-auth-solid:hover {
            background: #12467a;
            border-color: #12467a;
            color: #fff;
        }
        .navbar-toggler-custom {
            display: none;
            background: none;
            border: none;
            color: var(--dark);
            font-size: 1.3rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .navbar-toggler-custom:hover {
            background: var(--bg-light);
        }
        .nav-icon-grid {
            border-top: 1px solid var(--border);
            background: var(--bg-white);
        }
        .nav-icon-grid .container-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 4px;
            padding-top: 6px;
            padding-bottom: 6px;
        }
        .nav-icon-item {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 0.82rem;
            color: var(--body-text);
            text-decoration: none;
            min-width: 68px;
            transition: background 0.2s ease, color 0.2s ease;
            gap: 4px;
        }
        .nav-icon-item i {
            font-size: 1.15rem;
            color: var(--muted);
            transition: color 0.2s ease;
        }
        .nav-icon-item .nav-label {
            font-size: 0.78rem;
            line-height: 1.3;
            color: inherit;
        }
        .nav-icon-item:hover {
            background: var(--primary-soft);
            text-decoration: none;
            color: var(--primary);
        }
        .nav-icon-item:hover i {
            color: var(--primary);
        }
        .nav-icon-item.active {
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 600;
        }
        .nav-icon-item.active i {
            color: var(--primary);
        }

        /* ========== BREADCRUMB & PAGE HERO ========== */
        .page-hero-venue {
            background: linear-gradient(180deg, #F4F7FB 0%, #FFFFFF 100%);
            padding: 48px 0 56px;
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .page-hero-venue::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(46,123,196,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--muted);
            text-decoration: none;
            transition: color 0.2s;
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb-sep {
            color: var(--muted-light);
            font-size: 0.75rem;
        }
        .breadcrumb-current {
            color: var(--primary);
            font-weight: 600;
        }
        .page-hero-venue .hero-content-wrap {
            position: relative;
            z-index: 1;
        }
        .page-hero-venue h1 {
            font-size: 2.3rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.35;
            margin-bottom: 1rem;
        }
        .page-hero-venue .hero-sub {
            font-size: 1.05rem;
            color: var(--muted);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 1.5rem;
        }
        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 26px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            text-decoration: none;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .btn-primary-custom:hover {
            background: #12467a;
            border-color: #12467a;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 26px;
            font-size: 0.95rem;
            font-weight: 500;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            text-decoration: none;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .btn-outline-custom:hover {
            background: var(--primary-soft);
            color: #12467a;
            text-decoration: none;
            border-color: #12467a;
            transform: translateY(-1px);
        }

        /* ========== SECTION COMMON ========== */
        .section-header {
            margin-bottom: 2.5rem;
        }
        .section-header .section-title {
            margin-bottom: 0.6rem;
        }

        /* ========== INTRO WITH IMAGE ========== */
        .intro-venue-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-venue-text h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.4;
        }
        .intro-venue-text p {
            font-size: 0.98rem;
            color: var(--body-text);
            line-height: 1.9;
            margin-bottom: 1rem;
        }
        .intro-venue-image {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
        }
        .intro-venue-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
            border-radius: var(--radius-card);
        }
        .image-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(15,31,51,0.82);
            color: #fff;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.82rem;
            backdrop-filter: blur(4px);
        }

        /* ========== STATS ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.3s ease, transform 0.2s ease;
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .stat-desc {
            font-size: 0.82rem;
            color: var(--muted);
            line-height: 1.6;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr;
            gap: 20px;
        }
        .service-matrix-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .service-matrix-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .service-matrix-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-icon);
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--primary);
            font-size: 1.3rem;
            flex-shrink: 0;
        }
        .service-matrix-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .service-matrix-card p {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 0;
            flex-grow: 1;
        }
        .service-matrix-card .card-link {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            transition: color 0.2s;
        }
        .service-matrix-card .card-link:hover {
            color: #12467a;
            text-decoration: underline;
        }
        .service-matrix-card.card-featured {
            grid-column: span 2;
            background: var(--bg-white);
            border-color: var(--primary-10);
            position: relative;
        }
        .service-matrix-card.card-featured::after {
            content: "推荐方案";
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--gold-soft);
            color: #8A6D2F;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            border: 1px solid rgba(201,168,76,0.35);
        }
        .service-matrix-card.card-compact {
            grid-column: span 1;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-section {
            background: var(--bg-light);
        }
        .deep-content-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .deep-content-wrap h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1.2rem;
            line-height: 1.4;
        }
        .deep-content-wrap h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--dark);
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            line-height: 1.45;
        }
        .deep-content-wrap p {
            font-size: 0.98rem;
            color: var(--body-text);
            line-height: 1.9;
            margin-bottom: 1.2rem;
        }
        .deep-content-wrap blockquote {
            border-left: 3px solid var(--primary);
            background: var(--primary-soft);
            padding: 16px 20px;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            margin: 1.5rem 0;
            font-size: 0.95rem;
            color: var(--dark);
            line-height: 1.8;
        }
        .deep-content-wrap .content-image {
            margin: 1.5rem 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .deep-content-wrap .content-image img {
            width: 100%;
            aspect-ratio: 16/7;
            object-fit: cover;
            border-radius: var(--radius-card);
        }
        .content-image-caption {
            font-size: 0.78rem;
            color: var(--muted-light);
            text-align: center;
            margin-top: 8px;
        }

        /* ========== SCENARIOS ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scenario-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }
        .scenario-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .scenario-card-body {
            padding: 22px 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .scenario-card-body h3 {
            font-size: 1.08rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .scenario-card-body p {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 0;
            flex-grow: 1;
        }
        .scenario-tag {
            display: inline-block;
            font-size: 0.75rem;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 10px;
            align-self: flex-start;
            border: 1px solid var(--primary-10);
        }

        /* ========== PROCESS ========== */
        .process-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            counter-reset: process-step;
        }
        .process-step {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 20px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            counter-increment: process-step;
            position: relative;
        }
        .process-step::after {
            content: counter(process-step);
            position: absolute;
            top: -16px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 3px solid var(--bg-white);
            box-shadow: 0 2px 8px rgba(27,94,158,0.3);
        }
        .process-step:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .process-step .step-icon {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .process-step h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 0.82rem;
            color: var(--muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-light);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: border-color 0.2s;
        }
        .faq-item:hover {
            border-color: var(--primary-10);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            line-height: 1.6;
            user-select: none;
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question .faq-toggle-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            transition: transform 0.25s ease;
        }
        .faq-item.is-open .faq-toggle-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.92rem;
            color: var(--body-text);
            line-height: 1.85;
        }

        /* ========== CTA FORM ========== */
        .cta-form-section {
            background: var(--bg-white);
        }
        .cta-form-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 36px 40px;
            box-shadow: var(--shadow-hover);
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-form-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.6rem;
        }
        .cta-form-card .form-desc {
            font-size: 0.92rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }
        .form-control-custom {
            display: block;
            width: 100%;
            padding: 10px 16px;
            font-size: 0.92rem;
            color: var(--body-text);
            background: var(--bg-white);
            border: 1px solid var(--border-input);
            border-radius: var(--radius-input);
            transition: border-color 0.2s, box-shadow 0.2s;
            font-family: var(--font-sans);
            line-height: 1.5;
            margin-bottom: 16px;
        }
        .form-control-custom:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27,94,158,0.12);
            outline: none;
        }
        textarea.form-control-custom {
            resize: vertical;
            min-height: 110px;
        }
        .form-row-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .form-submit-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: all 0.2s ease;
            margin-top: 4px;
        }
        .form-submit-btn:hover {
            background: #12467a;
            border-color: #12467a;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        .form-submit-btn:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .form-privacy-hint {
            font-size: 0.78rem;
            color: var(--muted-light);
            text-align: center;
            margin-top: 14px;
            line-height: 1.6;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--dark);
            color: #B8C4D2;
            padding: 48px 0 36px;
            margin-top: 0;
        }
        .site-footer .container-custom {
            text-align: center;
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }
        .site-footer .footer-copyright {
            font-size: 0.9rem;
            color: #8E9BAA;
            margin-bottom: 16px;
        }
        .site-footer .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .site-footer .footer-links a {
            color: #B8C4D2;
            text-decoration: none;
            font-size: 0.88rem;
            transition: color 0.2s;
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .site-footer .footer-legal {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.78rem;
            color: #8E9BAA;
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 16px;
            margin-top: 8px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 991px) {
            .brand-search {
                display: none;
            }
            .nav-icon-grid .container-custom {
                justify-content: flex-start;
                overflow-x: auto;
                flex-wrap: nowrap;
                padding-bottom: 8px;
                gap: 2px;
            }
            .nav-icon-item {
                min-width: 60px;
                padding: 8px 12px;
                flex-shrink: 0;
            }
            .intro-venue-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .service-matrix-grid {
                grid-template-columns: 1fr 1fr;
            }
            .service-matrix-card.card-featured {
                grid-column: span 2;
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-timeline {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px 16px;
            }
        }
        @media (max-width: 767px) {
            .brand-topbar {
                padding: 0 16px;
                height: 56px;
            }
            .brand-logo .logo-text {
                font-size: 1.1rem;
            }
            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }
            .auth-buttons {
                display: none;
            }
            .navbar-toggler-custom {
                display: block;
            }
            .container-custom {
                padding: 0 16px;
            }
            section {
                padding: var(--section-spacing-mobile) 0;
            }
            .page-hero-venue {
                padding: 32px 0 40px;
            }
            .page-hero-venue h1 {
                font-size: 1.7rem;
            }
            .page-hero-venue .hero-sub {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .stats-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .service-matrix-grid {
                grid-template-columns: 1fr;
            }
            .service-matrix-card.card-featured {
                grid-column: span 1;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .process-timeline {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .process-step::after {
                top: -12px;
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
            }
            .cta-form-card {
                padding: 24px 20px;
            }
            .form-row-2col {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .site-footer {
                padding: 36px 0 24px;
            }
            .site-footer .footer-links {
                gap: 12px;
            }
            .site-footer .footer-legal {
                flex-direction: column;
                gap: 6px;
            }
        }
        @media (max-width: 575px) {
            .page-hero-venue h1 {
                font-size: 1.45rem;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                text-align: center;
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .nav-icon-grid .container-custom {
                padding-left: 8px;
                padding-right: 8px;
            }
            .nav-icon-item {
                min-width: 54px;
                padding: 6px 10px;
                font-size: 0.75rem;
            }
            .nav-icon-item i {
                font-size: 1rem;
            }
            .nav-icon-item .nav-label {
                font-size: 0.7rem;
            }
            .intro-venue-text h2 {
                font-size: 1.3rem;
            }
            .deep-content-wrap h2 {
                font-size: 1.3rem;
            }
            .cta-form-card h2 {
                font-size: 1.25rem;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1B5E9E;
            --primary-light: #2E7BC4;
            --primary-soft: #E8F1FA;
            --primary-10: #D6E4F3;
            --dark: #0F1F33;
            --dark-2: #16283F;
            --body-text: #33404F;
            --muted: #6B7A8C;
            --muted-light: #8E9BAA;
            --bg-white: #FFFFFF;
            --bg-light: #F4F7FB;
            --border: #E3EAF2;
            --border-input: #D5DFE8;
            --gold: #C9A84C;
            --gold-soft: #F6EFD9;
            --shadow-sm: 0 2px 8px rgba(15, 31, 51, 0.06), 0 8px 24px rgba(15, 31, 51, 0.05);
            --shadow-hover: 0 4px 16px rgba(15, 31, 51, 0.10), 0 12px 32px rgba(15, 31, 51, 0.08);
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 8px;
            --radius-icon: 10px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --section-spacing: 80px;
            --section-spacing-mobile: 52px;
            --container-max: 1200px;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--body-text);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }
        a:hover {
            color: #12467a;
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        .text-muted-custom {
            color: var(--muted) !important;
            font-size: 0.9rem;
        }
        .text-small {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }
        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-spacing) 0;
            position: relative;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 0.8rem;
            border: 1px solid var(--primary-10);
        }
        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.4;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        .bg-light-section {
            background-color: var(--bg-light);
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(15, 31, 51, 0.04);
        }
        .brand-topbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            text-decoration: none;
            letter-spacing: 0.06em;
            white-space: nowrap;
        }
        .brand-logo:hover {
            text-decoration: none;
            color: var(--dark);
        }
        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            border: 2px solid var(--primary-light);
            box-shadow: 0 2px 6px rgba(27, 94, 158, 0.25);
            flex-shrink: 0;
        }
        .brand-logo .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.04em;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .brand-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 6px 14px;
            color: var(--muted);
            font-size: 0.85rem;
            cursor: pointer;
            transition: border-color 0.2s;
            white-space: nowrap;
        }
        .brand-search:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }
        .brand-search i {
            font-size: 0.8rem;
        }
        .auth-buttons {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .btn-auth {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: var(--radius-btn);
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .btn-auth:hover {
            background: var(--primary-soft);
            border-color: var(--primary-light);
            text-decoration: none;
            color: var(--primary);
        }
        .btn-auth-solid {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-auth-solid:hover {
            background: #12467a;
            color: #fff;
            border-color: #12467a;
        }
        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: none;
            color: var(--dark);
            font-size: 1.4rem;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background 0.2s;
            align-items: center;
            justify-content: center;
        }
        .navbar-toggler-custom:hover {
            background: var(--bg-light);
        }
        .nav-icon-grid {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 6px 0;
        }
        .nav-icon-grid .container-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: flex-start;
            gap: 8px;
        }
        .nav-icon-item {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 8px 18px;
            border-radius: 10px;
            color: var(--muted);
            font-size: 0.8rem;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.2s;
            min-width: 70px;
            gap: 4px;
            position: relative;
        }
        .nav-icon-item i {
            font-size: 1.2rem;
            line-height: 1;
            color: var(--muted-light);
            transition: color 0.2s;
        }
        .nav-icon-item .nav-label {
            white-space: nowrap;
        }
        .nav-icon-item:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
        }
        .nav-icon-item:hover i {
            color: var(--primary);
        }
        .nav-icon-item.active {
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 600;
        }
        .nav-icon-item.active i {
            color: var(--primary);
        }
        .nav-icon-item.active::after {
            content: '';
            position: absolute;
            bottom: -7px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--bg-light);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--muted);
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-custom li:not(:last-child)::after {
            content: '/';
            color: var(--muted-light);
            font-size: 0.8rem;
        }
        .breadcrumb-custom a {
            color: var(--muted);
            text-decoration: none;
            transition: color 0.2s;
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb-custom .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== HERO ========== */
        .tech-hero {
            position: relative;
            background: linear-gradient(180deg, #F4F7FB 0%, #FFFFFF 100%);
            padding: 70px 0 60px;
            overflow: hidden;
        }
        .tech-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(27,94,158,0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .tech-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(201,168,76,0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .tech-hero .container-custom {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .tech-hero-content .section-label {
            margin-bottom: 16px;
        }
        .tech-hero-content h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.35;
            margin-bottom: 1.2rem;
            letter-spacing: 0.02em;
        }
        .tech-hero-content h1 .highlight {
            color: var(--primary);
            font-weight: 700;
            position: relative;
        }
        .tech-hero-content .hero-sub {
            font-size: 1.05rem;
            color: var(--muted);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 2rem;
        }
        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            transition: all 0.25s;
            box-shadow: var(--shadow-sm);
        }
        .btn-primary-custom:hover {
            background: #12467a;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            transition: all 0.25s;
        }
        .btn-secondary-custom:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-1px);
        }
        .tech-hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .tech-hero-visual .hero-img-wrap {
            width: 100%;
            max-width: 440px;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            position: relative;
            aspect-ratio: 4 / 3;
            background: #D6E4F3;
        }
        .tech-hero-visual .hero-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 18px;
        }
        .tech-hero-visual .floating-badge {
            position: absolute;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            padding: 10px 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--dark);
            border: 1px solid var(--border);
        }
        .tech-hero-visual .floating-badge i {
            color: var(--primary);
            font-size: 1.1rem;
            width: 28px;
            height: 28px;
            background: var(--primary-soft);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .floating-badge.badge-1 {
            top: 20px;
            left: -28px;
        }
        .floating-badge.badge-2 {
            bottom: 24px;
            right: -22px;
        }

        /* ========== METRIC STRIP ========== */
        .metric-strip {
            padding: 0 0 40px;
            background: #fff;
        }
        .metric-strip .container-custom {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: left;
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
            transition: all 0.25s;
        }
        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary-10);
        }
        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            border-radius: 4px 0 0 4px;
        }
        .metric-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .metric-name {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .metric-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.6;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix {
            background: var(--bg-light);
        }
        .matrix-grid {
            display: grid;
            grid-template-columns: 1fr 1.4fr 1.2fr;
            gap: 24px;
            margin-top: 8px;
        }
        .matrix-col {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .matrix-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s;
            flex: 1;
            position: relative;
            overflow: hidden;
        }
        .matrix-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-10);
            transform: translateY(-2px);
        }
        .matrix-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-icon);
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            border: 1px solid var(--primary-10);
            transition: background 0.2s;
        }
        .matrix-card:hover .card-icon {
            background: var(--primary-10);
        }
        .matrix-card .card-icon i {
            font-size: 1.4rem;
            color: var(--primary);
        }
        .matrix-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .matrix-card p {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .matrix-card .card-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s;
        }
        .matrix-card .card-link:hover {
            gap: 10px;
            text-decoration: underline;
        }
        .matrix-card.large-card {
            grid-column: span 1;
            min-height: 100%;
            background: linear-gradient(135deg, #F4F7FB 0%, #FFFFFF 100%);
            border-color: var(--primary-10);
        }
        .matrix-card.tall-card {
            min-height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
        }
        .matrix-card .tech-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 12px;
        }
        .matrix-card .tech-stats .stat-tag {
            background: var(--bg-light);
            border: 1px solid var(--border);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            color: var(--muted);
            font-weight: 500;
            transition: all 0.2s;
        }
        .matrix-card .tech-stats .stat-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content {
            background: #fff;
        }
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 24px;
        }
        .deep-text-block h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.4;
        }
        .deep-text-block h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 0.8rem;
            line-height: 1.45;
        }
        .deep-text-block p {
            font-size: 0.98rem;
            color: var(--body-text);
            line-height: 1.9;
            margin-bottom: 1.2rem;
        }
        .deep-text-block .highlight-box {
            background: var(--bg-light);
            border-left: 4px solid var(--primary);
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin-bottom: 1.2rem;
        }
        .deep-text-block .highlight-box p {
            margin-bottom: 0;
            font-weight: 500;
            color: var(--dark);
        }
        .deep-image-wrap {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            aspect-ratio: 16 / 10;
            background: #D6E4F3;
        }
        .deep-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 16px;
            transition: transform 0.4s ease;
        }
        .deep-image-wrap:hover img {
            transform: scale(1.02);
        }
        .img-caption {
            font-size: 0.8rem;
            color: var(--muted-light);
            text-align: center;
            margin-top: 10px;
        }

        /* ========== COMPARISON ========== */
        .comparison-section {
            background: var(--bg-light);
        }
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            position: relative;
            margin-top: 32px;
        }
        .comparison-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s;
        }
        .comparison-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-10);
            transform: translateY(-3px);
        }
        .comparison-card .comp-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
        }
        .comparison-card .comp-header i {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .comp-header .comp-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--dark);
        }
        .comparison-card.before-card .comp-header i {
            background: #F6EFD9;
            color: var(--gold);
            border: 1px solid var(--gold-soft);
        }
        .comparison-card.after-card .comp-header i {
            background: var(--primary-soft);
            color: var(--primary);
            border: 1px solid var(--primary-10);
        }
        .comparison-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid #EDF1F5;
            font-size: 0.92rem;
            color: var(--body-text);
            line-height: 1.6;
        }
        .comparison-list li:last-child {
            border-bottom: none;
        }
        .comparison-list li i {
            margin-top: 4px;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .before-card .comparison-list li i {
            color: var(--muted-light);
        }
        .after-card .comparison-list li i {
            color: var(--primary);
        }
        .comparison-list li .highlight-text {
            font-weight: 600;
            color: var(--primary);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
        }
        .faq-accordion-custom {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: #fff;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            width: 100%;
            background: #fff;
            border: none;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            text-align: left;
            transition: background 0.2s;
            font-family: var(--font-sans);
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question .faq-toggle-icon {
            font-size: 1.2rem;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.3s;
            font-weight: 600;
        }
        .faq-item.open .faq-question .faq-toggle-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 600px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ========== CTA FORM ========== */
        .cta-section {
            background: linear-gradient(180deg, #F4F7FB 0%, #FFFFFF 100%);
            padding: 70px 0;
        }
        .cta-card {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-hover);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 40px;
            align-items: center;
        }
        .cta-card .cta-info h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.8rem;
            line-height: 1.4;
        }
        .cta-card .cta-info p {
            font-size: 0.95rem;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .cta-card .cta-info .cta-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .cta-card .cta-info .cta-tag {
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 3px 12px;
            font-size: 0.75rem;
            color: var(--muted);
        }
        .cta-form-fields {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .form-group-custom {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-group-custom.full-width {
            grid-column: span 2;
        }
        .form-group-custom label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-group-custom input,
        .form-group-custom textarea {
            border: 1px solid var(--border-input);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            font-size: 0.9rem;
            font-family: var(--font-sans);
            transition: border-color 0.2s, box-shadow 0.2s;
            background: #FAFCFE;
            color: var(--body-text);
        }
        .form-group-custom input:focus,
        .form-group-custom textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 94, 158, 0.12);
            background: #fff;
        }
        .form-group-custom textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-submit-btn {
            grid-column: span 2;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            font-family: var(--font-sans);
            transition: all 0.25s;
            box-shadow: var(--shadow-sm);
            text-align: center;
        }
        .form-submit-btn:hover {
            background: #12467a;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        .form-privacy {
            grid-column: span 2;
            font-size: 0.75rem;
            color: var(--muted-light);
            text-align: center;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--dark);
            color: #B8C4D2;
            padding: 48px 0 40px;
            border-top: 4px solid rgba(27, 94, 158, 0.4);
        }
        .site-footer .container-custom {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
            text-align: center;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.06em;
        }
        .footer-copyright {
            font-size: 0.85rem;
            color: #8E9BAA;
            margin: 0;
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .footer-links a {
            color: #B8C4D2;
            font-size: 0.85rem;
            text-decoration: none;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-legal {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
            font-size: 0.75rem;
            color: #7A8796;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 991px) {
            .tech-hero .container-custom {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .tech-hero-content h1 {
                font-size: 2rem;
            }
            .tech-hero-visual .hero-img-wrap {
                max-width: 100%;
                aspect-ratio: 16 / 9;
            }
            .floating-badge.badge-1 {
                left: 10px;
                top: 10px;
            }
            .floating-badge.badge-2 {
                right: 10px;
                bottom: 10px;
            }
            .matrix-grid {
                grid-template-columns: 1fr 1fr;
            }
            .matrix-col:last-child {
                grid-column: span 2;
                flex-direction: row;
            }
            .matrix-col:last-child .matrix-card {
                flex: 1;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
            }
            .cta-card {
                grid-template-columns: 1fr;
                padding: 30px 24px;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 767px) {
            .brand-topbar {
                padding: 0 16px;
                height: 56px;
            }
            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }
            .brand-logo .logo-text {
                font-size: 1.1rem;
            }
            .brand-search {
                display: none;
            }
            .auth-buttons .btn-auth {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
            .navbar-toggler-custom {
                display: flex;
            }
            .nav-icon-grid {
                display: none;
                padding: 12px 0;
            }
            .nav-icon-grid.mobile-open {
                display: block;
            }
            .nav-icon-grid .container-custom {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-icon-item {
                flex-direction: row;
                justify-content: flex-start;
                gap: 12px;
                padding: 12px 16px;
                min-width: auto;
                text-align: left;
            }
            .nav-icon-item.active::after {
                display: none;
            }
            .nav-icon-item .nav-label {
                white-space: normal;
            }
            .nav-icon-item i {
                font-size: 1.1rem;
                min-width: 22px;
                text-align: center;
            }
            section {
                padding: var(--section-spacing-mobile) 0;
            }
            .container-custom {
                padding: 0 16px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .tech-hero {
                padding: 48px 0 40px;
            }
            .tech-hero-content h1 {
                font-size: 1.75rem;
            }
            .tech-hero-content .hero-sub {
                font-size: 0.95rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                justify-content: center;
                text-align: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .metric-strip .container-custom {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .metric-card {
                padding: 20px 16px;
            }
            .metric-number {
                font-size: 2rem;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .matrix-col:last-child {
                grid-column: span 1;
                flex-direction: column;
            }
            .matrix-card {
                padding: 24px 20px;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .comparison-card {
                padding: 24px 20px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-card {
                padding: 24px 18px;
                gap: 24px;
            }
            .cta-card .cta-info h2 {
                font-size: 1.3rem;
            }
            .cta-form-fields {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .form-group-custom.full-width,
            .form-submit-btn,
            .form-privacy {
                grid-column: span 1;
            }
            .form-submit-btn {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .footer-links {
                gap: 12px;
            }
            .footer-legal {
                flex-direction: column;
                gap: 8px;
            }
        }
        @media (max-width: 575px) {
            .metric-strip .container-custom {
                grid-template-columns: 1fr;
            }
            .metric-card {
                display: flex;
                align-items: center;
                gap: 16px;
                text-align: left;
                padding: 16px;
            }
            .metric-card::before {
                width: 3px;
            }
            .metric-number {
                font-size: 2.2rem;
                margin-bottom: 0;
                flex-shrink: 0;
            }
            .metric-name {
                margin-bottom: 2px;
                font-size: 0.9rem;
            }
            .metric-desc {
                font-size: 0.8rem;
            }
            .tech-hero-visual .floating-badge {
                padding: 8px 12px;
                font-size: 0.75rem;
            }
            .tech-hero-visual .floating-badge i {
                width: 24px;
                height: 24px;
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .deep-content-grid {
                gap: 24px;
            }
            .cta-card {
                padding: 20px 16px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1B5E9E;
            --primary-light: #2E7BC4;
            --primary-dark: #12467a;
            --primary-soft: #E8F1FA;
            --primary-10: #D6E4F3;
            --dark: #0F1F33;
            --dark-2: #16283F;
            --body-text: #33404F;
            --muted: #6B7A8C;
            --muted-light: #8E9BAA;
            --bg-white: #FFFFFF;
            --bg-light: #F4F7FB;
            --border: #E3EAF2;
            --border-input: #D5DFE8;
            --gold: #C9A84C;
            --gold-soft: #F6EFD9;
            --shadow-sm: 0 2px 8px rgba(15, 31, 51, 0.06), 0 8px 24px rgba(15, 31, 51, 0.05);
            --shadow-hover: 0 4px 16px rgba(15, 31, 51, 0.10), 0 12px 32px rgba(15, 31, 51, 0.08);
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 8px;
            --radius-icon: 10px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --section-spacing: 80px;
            --section-spacing-mobile: 52px;
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--body-text);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        .text-muted-custom {
            color: var(--muted) !important;
            font-size: 0.9rem;
        }

        .text-small {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }

        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: var(--section-spacing) 0;
            position: relative;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 0.8rem;
            border: 1px solid var(--primary-10);
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.4;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .bg-light-section {
            background-color: var(--bg-light);
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(15, 31, 51, 0.04);
        }

        .brand-topbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            text-decoration: none;
            letter-spacing: 0.06em;
            white-space: nowrap;
        }

        .brand-logo:hover {
            text-decoration: none;
            color: var(--dark);
        }

        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            border: 2px solid var(--primary-light);
            box-shadow: 0 2px 6px rgba(27, 94, 158, 0.25);
            flex-shrink: 0;
        }

        .brand-logo .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.04em;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .brand-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 6px 14px;
            color: var(--muted);
            font-size: 0.85rem;
            cursor: pointer;
            transition: border-color 0.2s, color 0.2s;
            white-space: nowrap;
        }

        .brand-search:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }

        .brand-search i {
            font-size: 0.8rem;
        }

        .auth-buttons {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn-auth {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 6px 16px;
            border-radius: var(--radius-btn);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            background: transparent;
            border: 1px solid var(--primary-10);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn-auth:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
            text-decoration: none;
            border-color: var(--primary);
        }

        .btn-auth-solid {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .btn-auth-solid:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
        }

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
            color: var(--dark);
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .navbar-toggler-custom:hover {
            background: var(--bg-light);
            color: var(--primary);
        }

        .nav-icon-grid {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            padding: 8px 0;
        }

        #navGrid {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-icon-item {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            padding: 10px 18px;
            border-radius: var(--radius-icon);
            color: var(--muted);
            font-size: 0.82rem;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.2s ease;
            white-space: nowrap;
            min-width: 72px;
        }

        .nav-icon-item i {
            font-size: 1.1rem;
            color: var(--muted-light);
            transition: color 0.2s ease;
        }

        .nav-icon-item .nav-label {
            font-size: 0.8rem;
            line-height: 1.3;
        }

        .nav-icon-item:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
        }

        .nav-icon-item:hover i {
            color: var(--primary);
        }

        .nav-icon-item.active {
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 600;
        }

        .nav-icon-item.active i {
            color: var(--primary);
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-section {
            padding: 18px 0;
            background: var(--bg-light);
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--muted);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--primary);
            font-weight: 500;
        }

        .breadcrumb-nav a:hover {
            color: var(--primary-dark);
        }

        .breadcrumb-sep {
            color: var(--muted-light);
            font-size: 0.75rem;
        }

        .breadcrumb-current {
            color: var(--dark);
            font-weight: 600;
        }

        /* ========== SECTION HERO CATEGORY ========== */
        .cat-hero {
            padding: 56px 0 48px;
            background: linear-gradient(135deg, #F4F7FB 0%, #FFFFFF 65%);
            overflow: hidden;
        }

        .cat-hero .hero-content {
            padding-right: 10px;
        }

        .cat-hero .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            border: 1px solid var(--primary-10);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 1.2rem;
        }

        .cat-hero h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 1.1rem;
        }

        .cat-hero .hero-subtitle {
            font-size: 1.05rem;
            color: var(--body-text);
            line-height: 1.85;
            max-width: 560px;
            margin-bottom: 1.5rem;
        }

        .cat-hero .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .hero-image-wrapper {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transform: rotate(1.5deg);
            transition: transform 0.3s ease;
        }

        .hero-image-wrapper:hover {
            transform: rotate(0deg) scale(1.01);
        }

        .hero-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
            aspect-ratio: 4/3;
        }

        .hero-kpi-strip {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            border-top: 1px solid var(--border);
            padding-top: 1.2rem;
        }

        .hero-kpi-item {
            display: flex;
            flex-direction: column;
        }

        .hero-kpi-item .kpi-num {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
        }

        .hero-kpi-item .kpi-label {
            font-size: 0.82rem;
            color: var(--muted);
        }

        /* ========== BUTTONS ========== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(18, 70, 122, 0.3);
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-secondary-custom:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
            text-decoration: none;
            border-color: var(--primary-light);
        }

        .btn-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.87rem;
            font-weight: 600;
            color: var(--primary);
            background: transparent;
            border: 1px solid var(--primary-10);
            border-radius: var(--radius-btn);
            padding: 6px 16px;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .btn-readmore:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
            border-color: var(--primary);
            text-decoration: none;
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            height: 100%;
            overflow: hidden;
        }

        .card-custom:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-10);
            transform: translateY(-3px);
        }

        .card-custom .card-body {
            padding: 28px 26px;
        }

        .card-custom .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-icon);
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 1rem;
            flex-shrink: 0;
            border: 1px solid var(--primary-10);
        }

        .card-custom .card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 0.6rem;
            line-height: 1.45;
        }

        .card-custom .card-desc {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.75;
        }

        /* ========== TECH INTRO SECTION ========== */
        .tech-intro-media {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .tech-intro-media img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        .tech-intro-media .media-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(15, 31, 51, 0.82));
            color: #fff;
            padding: 24px 18px 14px;
            font-size: 0.85rem;
            border-radius: 0 0 var(--radius-card) var(--radius-card);
            pointer-events: none;
        }

        .tech-intro-text h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.4;
        }

        .tech-intro-text p {
            font-size: 0.97rem;
            color: var(--body-text);
            line-height: 1.9;
            margin-bottom: 1rem;
        }

        /* ========== ABILITY GRID ========== */
        .ability-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .ability-card-lg {
            grid-column: span 7;
        }

        .ability-card-sm {
            grid-column: span 5;
        }

        .ability-card-full {
            grid-column: span 12;
        }

        .ability-card-md {
            grid-column: span 6;
        }

        .ability-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 28px 26px;
            transition: all 0.25s ease;
            height: 100%;
        }

        .ability-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-10);
            transform: translateY(-3px);
        }

        .ability-card .ability-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 1.2rem;
            margin-bottom: 0.9rem;
            border: 1px solid var(--primary-10);
            flex-shrink: 0;
        }

        .ability-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }

        .ability-card p {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ========== COMPARISON ========== */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .comparison-col {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 26px 24px;
            height: 100%;
        }

        .comparison-col.is-highlight {
            border-color: var(--primary);
            background: var(--primary-soft);
        }

        .comparison-col h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            text-align: center;
        }

        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--body-text);
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            line-height: 1.6;
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-list li i {
            color: var(--primary);
            margin-top: 4px;
            flex-shrink: 0;
        }

        .comparison-list li i.fa-times-circle {
            color: var(--muted-light);
        }

        .comparison-vs {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--gold);
            background: var(--gold-soft);
            border-radius: 50%;
            width: 52px;
            height: 52px;
            flex-shrink: 0;
            align-self: center;
            border: 1px solid rgba(201, 168, 76, 0.4);
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: 0 2px 6px rgba(15, 31, 51, 0.04);
            background: var(--bg-white);
        }

        .faq-accordion .accordion-button {
            background: var(--bg-white);
            color: var(--dark);
            font-weight: 600;
            font-size: 0.98rem;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            text-align: left;
            gap: 12px;
        }

        .faq-accordion .accordion-button::after {
            content: "\2b";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.9rem;
            color: var(--primary);
            flex-shrink: 0;
            background: none;
            width: auto;
            height: auto;
            transform: none;
            transition: transform 0.3s ease;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            content: "\2212";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            transform: none;
            color: var(--primary);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-soft);
            color: var(--primary);
            box-shadow: none;
        }

        .faq-accordion .accordion-body {
            padding: 18px 22px 22px;
            font-size: 0.92rem;
            color: var(--body-text);
            line-height: 1.85;
            background: var(--bg-white);
        }

        /* ========== CTA SECTION / FORM ========== */
        .cta-section {
            background: var(--bg-light);
        }

        .cta-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 36px 32px;
        }

        .cta-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.7rem;
        }

        .cta-card .cta-desc {
            font-size: 0.95rem;
            color: var(--muted);
            margin-bottom: 1.7rem;
            line-height: 1.8;
        }

        .form-label-custom {
            font-size: 0.87rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 0.4rem;
            display: block;
        }

        .form-control-custom {
            width: 100%;
            border: 1px solid var(--border-input);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            font-size: 0.92rem;
            color: var(--body-text);
            background: var(--bg-white);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            font-family: var(--font-sans);
        }

        .form-control-custom:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 94, 158, 0.12);
            outline: none;
        }

        .form-control-custom::placeholder {
            color: var(--muted-light);
            font-size: 0.87rem;
        }

        textarea.form-control-custom {
            resize: vertical;
            min-height: 110px;
        }

        .privacy-hint {
            font-size: 0.8rem;
            color: var(--muted);
            margin-top: 0.8rem;
        }

        /* ========== NEWS LIST ========== */
        .news-list-compact {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item-compact {
            display: grid;
            grid-template-columns: 110px 1fr auto;
            gap: 18px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            align-items: start;
        }

        .news-item-compact:last-child {
            border-bottom: none;
        }

        .news-date {
            font-size: 0.85rem;
            color: var(--muted);
            font-weight: 500;
            padding-top: 2px;
        }

        .news-content h4 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 0.4rem;
            line-height: 1.45;
        }

        .news-content p {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .news-action {
            display: flex;
            align-items: center;
            padding-top: 2px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--dark);
            color: #B8C4D2;
            padding: 40px 0 28px;
            margin-top: 0;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.06em;
            margin-bottom: 0.6rem;
        }

        .footer-copyright {
            font-size: 0.85rem;
            color: #B8C4D2;
            margin-bottom: 1rem;
        }

        .footer-links {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            margin-bottom: 0.8rem;
        }

        .footer-links a {
            color: #B8C4D2;
            font-size: 0.85rem;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-legal {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.78rem;
            color: #8E9BAA;
            border-top: 1px solid rgba(184, 196, 210, 0.2);
            padding-top: 0.8rem;
            margin-top: 0.6rem;
        }

        /* ========== RESPONSIVE ========== */
        @media (min-width: 992px) {
            .container-custom {
                padding: 0 24px;
            }
            section {
                padding: var(--section-spacing) 0;
            }
            .navbar-toggler-custom {
                display: none;
            }
            #navGrid {
                display: flex !important;
            }
        }

        @media (max-width: 991.98px) {
            .brand-search {
                display: none;
            }
            .auth-buttons {
                display: none;
            }
            .navbar-toggler-custom {
                display: inline-flex;
            }
            #navGrid {
                display: none;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0;
                gap: 2px;
                border-top: 1px solid var(--border);
                margin-top: 0;
            }
            #navGrid.show {
                display: flex;
            }
            .nav-icon-item {
                flex-direction: row;
                justify-content: flex-start;
                gap: 12px;
                padding: 12px 16px;
                min-width: 0;
                border-radius: 8px;
            }
            .nav-icon-item i {
                font-size: 1rem;
                width: 22px;
                text-align: center;
            }
            .cat-hero h1 {
                font-size: 1.9rem;
            }
            .hero-kpi-strip {
                gap: 18px;
            }
            .ability-card-lg,
            .ability-card-sm,
            .ability-card-full,
            .ability-card-md {
                grid-column: span 12;
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
            .comparison-vs {
                align-self: center;
            }
            .news-item-compact {
                grid-template-columns: 1fr;
                gap: 6px;
                padding: 16px 0;
            }
            .news-date {
                font-size: 0.78rem;
            }
            .news-action {
                padding-top: 4px;
            }
        }

        @media (max-width: 767.98px) {
            .container-custom {
                padding: 0 16px;
            }
            section {
                padding: var(--section-spacing-mobile) 0;
            }
            .brand-topbar {
                padding: 0 16px;
                height: 56px;
            }
            .brand-logo .logo-text {
                font-size: 1.1rem;
            }
            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }
            .cat-hero {
                padding: 40px 0 36px;
            }
            .cat-hero h1 {
                font-size: 1.6rem;
            }
            .cat-hero .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-image-wrapper {
                transform: none;
                margin-top: 1.5rem;
            }
            .hero-image-wrapper:hover {
                transform: none;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .card-custom .card-body {
                padding: 20px 18px;
            }
            .ability-card {
                padding: 20px 18px;
            }
            .cta-card {
                padding: 24px 18px;
            }
            .comparison-col {
                padding: 20px 16px;
            }
            .footer-links {
                flex-direction: column;
                gap: 8px;
            }
            .footer-legal {
                flex-direction: column;
                gap: 6px;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                width: 100%;
            }
        }

        @media (max-width: 575.98px) {
            .cat-hero h1 {
                font-size: 1.35rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .hero-kpi-item .kpi-num {
                font-size: 1.35rem;
            }
            .nav-icon-item {
                padding: 10px 12px;
            }
            .nav-icon-item .nav-label {
                font-size: 0.75rem;
            }
            .breadcrumb-nav {
                font-size: 0.75rem;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1B5E9E;
            --primary-light: #2E7BC4;
            --primary-soft: #E8F1FA;
            --primary-10: #D6E4F3;
            --dark: #0F1F33;
            --dark-2: #16283F;
            --body-text: #33404F;
            --muted: #6B7A8C;
            --muted-light: #8E9BAA;
            --bg-white: #FFFFFF;
            --bg-light: #F4F7FB;
            --border: #E3EAF2;
            --border-input: #D5DFE8;
            --gold: #C9A84C;
            --gold-soft: #F6EFD9;
            --shadow-sm: 0 2px 8px rgba(15, 31, 51, 0.06), 0 8px 24px rgba(15, 31, 51, 0.05);
            --shadow-hover: 0 4px 16px rgba(15, 31, 51, 0.10), 0 12px 32px rgba(15, 31, 51, 0.08);
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 8px;
            --radius-icon: 10px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --section-spacing: 80px;
            --section-spacing-mobile: 52px;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--body-text);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }
        a:hover {
            color: #12467a;
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        .text-muted-custom {
            color: var(--muted) !important;
            font-size: 0.9rem;
        }
        .text-small {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }
        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-spacing) 0;
            position: relative;
        }
        .bg-light-section {
            background-color: var(--bg-light);
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 0.8rem;
            border: 1px solid var(--primary-10);
        }
        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.4;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(15, 31, 51, 0.04);
        }
        .brand-topbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            text-decoration: none;
            letter-spacing: 0.06em;
            white-space: nowrap;
        }
        .brand-logo:hover {
            text-decoration: none;
            color: var(--dark);
        }
        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            border: 2px solid var(--primary-light);
            box-shadow: 0 2px 6px rgba(27, 94, 158, 0.25);
            flex-shrink: 0;
        }
        .brand-logo .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.04em;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .brand-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 6px 14px;
            color: var(--muted);
            font-size: 0.85rem;
            cursor: pointer;
            transition: border-color 0.2s;
            white-space: nowrap;
        }
        .brand-search:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }
        .brand-search i {
            font-size: 0.8rem;
        }
        .auth-buttons {
            display: flex;
            gap: 10px;
        }
        .btn-auth {
            font-size: 0.85rem;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: var(--radius-btn);
            color: var(--dark);
            border: 1px solid var(--border);
            transition: all 0.2s ease;
            text-align: center;
            line-height: 1.4;
        }
        .btn-auth:hover {
            border-color: var(--primary);
            color: var(--primary);
            text-decoration: none;
            background: var(--primary-soft);
        }
        .btn-auth-solid {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .btn-auth-solid:hover {
            background: #15528a;
            border-color: #15528a;
            color: #fff;
        }
        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            font-size: 1.1rem;
            color: var(--dark);
            cursor: pointer;
            transition: all 0.2s;
        }
        .navbar-toggler-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* 图标网格导航 */
        .nav-icon-grid {
            background: var(--bg-light);
            border-bottom: 1px solid var(--border);
            padding: 10px 24px;
        }
        .nav-icon-grid .container-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            justify-content: flex-start;
            align-items: center;
        }
        .nav-icon-item {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 8px 18px;
            border-radius: 12px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--body-text);
            transition: all 0.2s ease;
            min-width: 80px;
            text-align: center;
            text-decoration: none;
            gap: 4px;
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .nav-icon-item i {
            font-size: 1.2rem;
            color: var(--muted);
            transition: color 0.2s;
        }
        .nav-icon-item .nav-label {
            font-size: 0.8rem;
            color: var(--body-text);
        }
        .nav-icon-item:hover {
            background: var(--primary-soft);
            text-decoration: none;
            border-color: var(--primary-10);
        }
        .nav-icon-item:hover i,
        .nav-icon-item:hover .nav-label {
            color: var(--primary);
        }
        .nav-icon-item.active {
            background: var(--primary);
            border-color: var(--primary);
        }
        .nav-icon-item.active i,
        .nav-icon-item.active .nav-label {
            color: #fff;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-wrapper {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--muted);
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--muted);
            text-decoration: none;
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb-sep {
            color: var(--muted-light);
        }
        .breadcrumb-current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            background: linear-gradient(180deg, #F4F7FB 0%, #FFFFFF 100%);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(27, 94, 158, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-hero .hero-title {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 1rem;
        }
        .page-hero .hero-sub {
            font-size: 1.05rem;
            color: var(--muted);
            max-width: 720px;
            line-height: 1.85;
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            overflow: hidden;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .card-body-custom {
            padding: 24px 28px;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: all 0.25s ease;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary-custom:hover {
            background: #15528a;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }
        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 9px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: all 0.25s ease;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-secondary-custom:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
            border-color: var(--primary-light);
        }
        .badge-custom {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 14px;
            letter-spacing: 0.04em;
        }
        .badge-gold {
            background: var(--gold-soft);
            color: #8A6D1A;
            border: 1px solid #E6D9A8;
        }
        .badge-blue {
            background: var(--primary-soft);
            color: var(--primary);
            border: 1px solid var(--primary-10);
        }

        /* ========== MEMBERSHIP TIERS ========== */
        .tier-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 32px 28px;
            transition: all 0.25s ease;
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .tier-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }
        .tier-card.highlight {
            border-color: var(--gold);
            box-shadow: 0 6px 24px rgba(201, 168, 76, 0.18), 0 2px 8px rgba(15, 31, 51, 0.06);
        }
        .tier-name {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.5rem;
        }
        .tier-price {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.25rem;
        }
        .tier-price .unit {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--muted);
        }
        .tier-desc {
            font-size: 0.9rem;
            color: var(--muted);
            margin-bottom: 1.2rem;
            line-height: 1.7;
        }
        .tier-features {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
        }
        .tier-features li {
            padding: 6px 0;
            font-size: 0.92rem;
            color: var(--body-text);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }
        .tier-features li i {
            color: var(--primary);
            font-size: 0.85rem;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .tier-features li.disabled {
            color: var(--muted-light);
        }
        .tier-features li.disabled i {
            color: var(--muted-light);
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.2s ease;
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 16px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            gap: 12px;
            transition: all 0.2s;
            line-height: 1.5;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 0.92rem;
            color: var(--body-text);
            line-height: 1.8;
            margin: 0;
        }

        /* ========== CTA FORM ========== */
        .cta-form-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            padding: 36px 32px;
        }
        .cta-form-card .form-control-custom {
            width: 100%;
            border: 1px solid var(--border-input);
            border-radius: var(--radius-input);
            padding: 10px 16px;
            font-size: 0.95rem;
            color: var(--body-text);
            transition: all 0.2s ease;
            font-family: var(--font-sans);
            background: var(--bg-white);
            line-height: 1.5;
        }
        .cta-form-card .form-control-custom:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 94, 158, 0.12);
        }
        .cta-form-card .form-label-custom {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .cta-form-card .btn-submit {
            width: 100%;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 1rem;
            font-weight: 600;
            transition: all 0.25s ease;
            cursor: pointer;
            font-family: var(--font-sans);
        }
        .cta-form-card .btn-submit:hover {
            background: #15528a;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        .form-privacy {
            font-size: 0.8rem;
            color: var(--muted-light);
            margin-top: 10px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--dark);
            color: #B8C4D2;
            padding: 48px 0 36px;
            margin-top: 0;
        }
        .site-footer .footer-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }
        .site-footer .footer-copyright {
            font-size: 0.85rem;
            color: #9AABBC;
            margin-bottom: 16px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 16px;
        }
        .site-footer .footer-links a {
            color: #B8C4D2;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .site-footer .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.8rem;
            color: #8A9AAC;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 991px) {
            .brand-topbar {
                padding: 0 16px;
                height: 58px;
            }
            .nav-icon-grid {
                padding: 8px 16px;
            }
            .nav-icon-grid .container-custom {
                gap: 4px;
            }
            .nav-icon-item {
                padding: 6px 12px;
                min-width: 70px;
                font-size: 0.78rem;
            }
            .nav-icon-item i {
                font-size: 1rem;
            }
            .nav-icon-item .nav-label {
                font-size: 0.75rem;
            }
            .brand-search {
                display: none;
            }
            .page-hero .hero-title {
                font-size: 2rem;
            }
            section {
                padding: 60px 0;
            }
        }
        @media (max-width: 767px) {
            .brand-topbar {
                height: 56px;
                padding: 0 14px;
            }
            .brand-logo .logo-text {
                font-size: 1.15rem;
            }
            .brand-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            .auth-buttons {
                display: none;
            }
            .navbar-toggler-custom {
                display: inline-flex;
            }
            .nav-icon-grid {
                display: none;
                padding: 10px 14px;
            }
            .nav-icon-grid.show {
                display: block;
            }
            .nav-icon-grid .container-custom {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: flex-start;
                gap: 6px;
            }
            .nav-icon-item {
                flex: 1 1 calc(33.33% - 8px);
                min-width: 90px;
                padding: 10px 8px;
            }
            .page-hero .hero-title {
                font-size: 1.7rem;
            }
            .page-hero .hero-sub {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            section {
                padding: 48px 0;
            }
            .cta-form-card {
                padding: 28px 20px;
            }
            .tier-card {
                padding: 24px 20px;
            }
            .tier-price {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 575px) {
            .container-custom {
                padding: 0 16px;
            }
            .nav-icon-item {
                flex: 1 1 calc(50% - 6px);
                min-width: 80px;
                padding: 8px 6px;
            }
            .page-hero .hero-title {
                font-size: 1.5rem;
            }
            .site-footer {
                padding: 36px 0 24px;
            }
            .site-footer .footer-legal {
                flex-direction: column;
                gap: 6px;
            }
            .tier-card {
                margin-bottom: 16px;
            }
        }