/* roulang page: index */
:root {
            --primary: #0A4DA4;
            --primary-dark: #083D87;
            --primary-light: #E8F1FF;
            --primary-pale: #F0F6FF;
            --accent: #FF6B35;
            --accent-hover: #E85A2A;
            --bg: #F6F9FE;
            --bg-alt: #EEF4FC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #5B6B7C;
            --text-muted: #8A98A8;
            --border: #DCE7F5;
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 30px rgba(2, 20, 60, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(2, 20, 60, 0.10);
            --shadow-sm: 0 2px 8px rgba(2, 20, 60, 0.04);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 56px;
            --nav-height: 68px;
            --transition: 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background-color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: 2px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 0.5em;
        }

        h1 {
            font-size: clamp(28px, 4vw, 40px);
            line-height: 1.2;
            margin-bottom: 0.6em;
        }
        h2 {
            font-size: clamp(24px, 3vw, 32px);
            margin-bottom: 0.5em;
        }
        h3 {
            font-size: clamp(19px, 2.2vw, 24px);
            margin-bottom: 0.45em;
        }
        h4 {
            font-size: 18px;
            margin-bottom: 0.4em;
        }
        p {
            margin-bottom: 1em;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }

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

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

        .section-title {
            font-size: clamp(22px, 2.6vw, 30px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-pale);
            border: 1px solid var(--border);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* Navbar */
        .site-navbar {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
        }
        .site-navbar .navbar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            text-decoration: none;
        }
        .navbar-logo .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .navbar-logo span.logo-text {
            color: var(--primary);
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.5px;
        }
        .navbar-nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .navbar-nav-links li a {
            display: block;
            padding: 8px 12px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: color var(--transition), background-color var(--transition);
            white-space: nowrap;
        }
        .navbar-nav-links li a:hover,
        .navbar-nav-links li a.active {
            color: var(--primary);
            background-color: var(--primary-pale);
        }
        .navbar-nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 3px;
            border-radius: 3px;
            background-color: var(--primary);
        }
        .navbar-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 20px;
            font-size: 14.5px;
            line-height: 1.2;
            border: 1.5px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: 2px;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover,
        .btn-accent:focus {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
        }
        .btn-accent:active {
            transform: translateY(1px);
        }
        .btn-outline-primary {
            background-color: #fff;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline-primary:hover,
        .btn-outline-primary:focus {
            background-color: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .btn-sm {
            padding: 8px 14px;
            font-size: 13px;
            border-radius: 10px;
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
        }
        .btn .btn-arrow {
            transition: transform var(--transition);
        }
        .btn:hover .btn-arrow {
            transform: translateX(4px);
        }

        /* Hero - coupon wall style */
        .hero-section {
            background-color: var(--bg-alt);
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 60px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 38%;
            background: linear-gradient(to left, rgba(10, 77, 164, 0.05), transparent);
            pointer-events: none;
        }
        .hero-content {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-left h1 {
            font-size: clamp(32px, 4.5vw, 48px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.18;
        }
        .hero-left .hero-lead {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 24px;
            max-width: 540px;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            margin-top: 20px;
            font-size: 13.5px;
            color: var(--text-muted);
        }
        .hero-trust i {
            color: var(--success);
            margin-right: 4px;
        }
        .hero-right {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .coupon-card-main {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 28px 24px;
            position: relative;
            overflow: hidden;
        }
        .coupon-card-main::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 5px;
            background: var(--accent);
        }
        .coupon-card-main .coupon-label {
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .coupon-card-main .coupon-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .coupon-card-main .coupon-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .coupon-card-main .coupon-code {
            display: inline-block;
            background: var(--primary-pale);
            border: 1px dashed var(--primary);
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            padding: 10px 20px;
            border-radius: 10px;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .coupon-sub-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 20px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .coupon-sub-card .sub-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .coupon-sub-card .sub-icon {
            width: 44px;
            height: 44px;
            background: var(--primary-pale);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .coupon-sub-card .sub-text h4 {
            font-size: 14.5px;
            margin-bottom: 2px;
            font-weight: 600;
        }
        .coupon-sub-card .sub-text p {
            font-size: 12.5px;
            margin-bottom: 0;
            color: var(--text-muted);
        }
        .coupon-sub-card .sub-amount {
            font-size: 20px;
            font-weight: 700;
            color: var(--accent);
            white-space: nowrap;
        }

        /* Stats bar */
        .stats-bar {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 32px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            text-align: left;
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .stat-card .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 13.5px;
            color: var(--text-secondary);
            margin-bottom: 4px;
        }
        .stat-card .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12.5px;
            font-weight: 600;
            color: var(--success);
        }
        .stat-card .stat-trend.down {
            color: var(--danger);
        }
        .stat-card .stat-bar {
            width: 100%;
            height: 4px;
            background: var(--bg-alt);
            border-radius: 4px;
            margin-top: 10px;
            overflow: hidden;
        }
        .stat-card .stat-bar span {
            display: block;
            height: 100%;
            background: var(--primary);
            border-radius: 4px;
            width: 70%;
        }

        /* Service matrix */
        .service-matrix {
            background: var(--bg);
        }
        .service-matrix .matrix-row {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 24px;
        }
        .service-card-large {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .service-card-large:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .service-card-large .service-img {
            height: 220px;
            background-size: cover;
            background-position: center;
            position: relative;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .service-card-large .service-img .service-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.3px;
        }
        .service-card-large .service-body {
            padding: 28px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card-large .service-body h3 {
            font-size: 21px;
            margin-bottom: 8px;
        }
        .service-card-large .service-body p {
            font-size: 15px;
            margin-bottom: 16px;
            flex: 1;
        }
        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }
        .service-tags .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-pale);
            border: 1px solid var(--border);
            padding: 3px 10px;
            border-radius: var(--radius-badge);
        }
        .service-card-small {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            transition: all var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .service-card-small:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .service-card-small .small-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-pale);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            flex-shrink: 0;
            overflow: hidden;
        }
        .service-card-small .small-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 14px;
        }
        .service-card-small .small-content h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .service-card-small .small-content p {
            font-size: 13.5px;
            margin-bottom: 8px;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        .service-card-small .small-content .link-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            transition: color var(--transition);
        }
        .service-card-small .small-content .link-more:hover {
            color: var(--primary-dark);
        }

        /* Brand story - deep content A */
        .brand-story {
            background: var(--surface);
        }
        .brand-story .story-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }
        .brand-story .story-img-wrap {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
        }
        .brand-story .story-img-wrap img {
            width: 100%;
            height: 300px;
            object-fit: cover;
        }
        .brand-story .story-text p {
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 14px;
            color: var(--text-secondary);
        }
        .brand-story .story-text h2 {
            margin-bottom: 16px;
        }

        /* Result comparison */
        .result-section {
            background: var(--bg-alt);
        }
        .result-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .result-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 24px 20px;
            transition: all var(--transition);
        }
        .result-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .result-card .result-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            background: rgba(255, 107, 53, 0.1);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }
        .result-card .result-title {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text);
        }
        .result-card .before-after {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 10px;
        }
        .result-card .before-after .ba-col {
            flex: 1;
            background: var(--bg);
            border-radius: 10px;
            padding: 10px 12px;
        }
        .result-card .before-after .ba-col .ba-label {
            font-size: 11.5px;
            color: var(--text-muted);
            margin-bottom: 2px;
        }
        .result-card .before-after .ba-col .ba-value {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }
        .result-card .result-note {
            font-size: 12.5px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* News section */
        .news-section {
            background: var(--surface);
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-item {
            display: flex;
            gap: 20px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            transition: all var(--transition);
            border-left: 3px solid transparent;
        }
        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-left-color: var(--primary);
            background: var(--primary-pale);
        }
        .news-item .news-date {
            flex-shrink: 0;
            width: 60px;
            height: 60px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
        }
        .news-item .news-date .date-day {
            font-size: 22px;
            line-height: 1.2;
        }
        .news-item .news-date .date-month {
            font-size: 12px;
            color: var(--text-muted);
        }
        .news-item .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-body h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }
        .news-item .news-body p {
            font-size: 14px;
            margin-bottom: 10px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-body .btn-sm {
            font-size: 12.5px;
        }

        /* Content cards - featured */
        .featured-cards {
            background: var(--bg);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .featured-card .fc-img {
            height: 170px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .featured-card .fc-img .fc-tag {
            position: absolute;
            bottom: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 11.5px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
        }
        .featured-card .fc-body {
            padding: 20px 18px;
        }
        .featured-card .fc-body h4 {
            font-size: 15.5px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .featured-card .fc-body p {
            font-size: 13.5px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Testimonials - bubble style */
        .testimonial-section {
            background: var(--bg-alt);
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .testimonial-card .t-quote {
            font-size: 40px;
            color: var(--primary-pale);
            line-height: 0.6;
            margin-bottom: 8px;
            font-style: italic;
        }
        .testimonial-card .t-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .testimonial-card .t-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-card .t-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary-pale);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .testimonial-card .t-author-info h5 {
            font-size: 13.5px;
            font-weight: 600;
            margin-bottom: 0;
            color: var(--text);
        }
        .testimonial-card .t-author-info span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Deep content B - industry data */
        .industry-data {
            background: var(--surface);
        }
        .industry-data .data-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .industry-data .data-text h2 {
            margin-bottom: 14px;
        }
        .industry-data .data-text p {
            margin-bottom: 14px;
            line-height: 1.9;
        }
        .industry-data .data-list {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }
        .industry-data .data-list li {
            padding: 10px 0 10px 24px;
            position: relative;
            font-size: 14.5px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
        }
        .industry-data .data-list li::before {
            content: '▪';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-size: 16px;
        }
        .industry-data .data-highlight {
            background: var(--primary-pale);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
        }
        .industry-data .data-highlight .data-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .industry-data .data-highlight .data-note {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* Focus themes */
        .focus-themes {
            background: var(--bg);
        }
        .theme-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .theme-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 18px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            text-align: center;
        }
        .theme-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .theme-card .theme-icon {
            width: 52px;
            height: 52px;
            background: var(--primary-pale);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            color: var(--primary);
            font-size: 22px;
        }
        .theme-card h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .theme-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* Channel selling - 3 steps */
        .channel-section {
            background: var(--bg-alt);
        }
        .channel-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .channel-steps {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .channel-step {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .channel-step .step-num {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .channel-step h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .channel-step p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }
        .channel-faq-mini {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
        }
        .channel-faq-mini h4 {
            font-size: 16px;
            font-weight: 600;
        }

        /* Timeline */
        .timeline-section {
            background: var(--surface);
        }
        .timeline {
            position: relative;
            padding-left: 28px;
            margin-top: 12px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: var(--border);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 22px;
            padding-left: 18px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -25px;
            top: 8px;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            border: 2px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }
        .timeline-item .tl-time {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 3px;
        }
        .timeline-item h4 {
            font-size: 15.5px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .timeline-item p {
            font-size: 13.5px;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-alt);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 0.8fr 1.2fr;
            gap: 40px;
            align-items: start;
        }
        .faq-side h2 {
            margin-bottom: 10px;
        }
        .faq-side p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .faq-side .faq-cta-note {
            font-size: 13.5px;
            color: var(--text-muted);
        }
        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--surface);
            box-shadow: var(--shadow-sm);
        }
        .accordion-custom .accordion-button {
            background: var(--surface);
            color: var(--text);
            font-weight: 600;
            font-size: 15.5px;
            padding: 18px 20px;
            border: none;
            outline: none;
            box-shadow: none;
            transition: all var(--transition);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--primary-pale);
            color: var(--primary);
            box-shadow: none;
        }
        .accordion-custom .accordion-button:focus {
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: -3px;
            box-shadow: none;
        }
        .accordion-custom .accordion-button::after {
            background-size: 14px;
            transition: transform var(--transition);
        }
        .accordion-custom .accordion-body {
            background: var(--surface);
            color: var(--text-secondary);
            font-size: 14.5px;
            line-height: 1.8;
            padding: 16px 20px 20px;
            border-top: 1px solid var(--border);
        }
        .accordion-custom .accordion-body p {
            margin-bottom: 0;
            font-size: 14.5px;
            line-height: 1.8;
        }

        /* Conversion form */
        .form-section {
            background: var(--surface);
        }
        .form-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 40px;
            align-items: start;
        }
        .form-info h2 {
            margin-bottom: 12px;
        }
        .form-info .value-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }
        .form-info .value-list li {
            padding: 8px 0;
            font-size: 14.5px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .form-info .value-list li i {
            color: var(--success);
        }
        .form-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
        }
        .form-card .form-group {
            margin-bottom: 16px;
        }
        .form-card .form-label {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            display: block;
        }
        .form-card .form-control {
            height: 44px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            font-size: 14.5px;
            padding: 8px 14px;
            background: var(--surface);
            color: var(--text);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .form-card .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(10, 77, 164, 0.12);
            background: var(--primary-pale);
        }
        .form-card textarea.form-control {
            height: auto;
            min-height: 90px;
            resize: vertical;
        }
        .form-card .privacy-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: #0A1F3C;
            color: #A9B8CC;
            padding: 60px 0 0;
        }
        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.9fr 1fr;
            gap: 36px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer .footer-brand h4 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            color: #A9B8CC;
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 0;
        }
        .site-footer .footer-col h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: #A9B8CC;
            font-size: 13.5px;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--accent);
        }
        .site-footer .footer-contact p {
            font-size: 13.5px;
            color: #A9B8CC;
            margin-bottom: 6px;
            line-height: 1.7;
        }
        .site-footer .footer-contact p i {
            width: 16px;
            margin-right: 6px;
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            padding: 20px 0;
            font-size: 12.5px;
            color: #8A98A8;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px 20px;
        }
        .site-footer .footer-bottom a {
            color: #A9B8CC;
            font-size: 12.5px;
            transition: color var(--transition);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom .beian-info {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            align-items: center;
        }

        /* Responsive */
        @media (max-width: 1199.98px) {
            .theme-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 991.98px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .service-matrix .matrix-row {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .brand-story .story-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .industry-data .data-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .channel-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .form-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .navbar-nav-links {
                display: none;
            }
            .navbar-cta .btn {
                padding: 8px 14px;
                font-size: 13px;
            }
            .navbar-logo span.logo-text {
                font-size: 17px;
            }
        }
        @media (max-width: 767.98px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .result-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .service-matrix .matrix-row {
                gap: 16px;
            }
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }
            .hero-section {
                padding: 40px 0 56px;
                min-height: auto;
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .navbar-cta {
                gap: 6px;
            }
            .navbar-cta .btn {
                padding: 6px 10px;
                font-size: 12px;
            }
            .site-navbar {
                padding: 0 12px;
            }
            .coupon-card-main {
                padding: 20px 16px;
            }
            .coupon-sub-card {
                padding: 14px 14px;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 16px 14px;
            }
            .stat-card .stat-number {
                font-size: 26px;
            }
            .theme-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .news-item .news-date {
                width: 48px;
                height: 48px;
            }
            .news-item .news-date .date-day {
                font-size: 18px;
            }
            .form-card {
                padding: 20px 16px;
            }
            h1 {
                font-size: 26px;
            }
            h2 {
                font-size: 22px;
            }
            .hero-left .hero-lead {
                font-size: 15px;
            }
            .coupon-card-main .coupon-title {
                font-size: 18px;
            }
            .coupon-sub-card {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0A4DA4;
            --primary-dark: #083D87;
            --primary-light: #E8F1FF;
            --primary-pale: #F0F6FF;
            --accent: #FF6B35;
            --accent-hover: #E85A2A;
            --bg: #F6F9FE;
            --bg-alt: #EEF4FC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #5B6B7C;
            --text-muted: #8A98A8;
            --border: #DCE7F5;
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 30px rgba(2, 20, 60, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(2, 20, 60, 0.10);
            --shadow-sm: 0 2px 8px rgba(2, 20, 60, 0.04);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 56px;
            --nav-height: 68px;
            --transition: 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background-color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }

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

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

        .section-title {
            font-size: clamp(22px, 2.6vw, 30px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-pale);
            border: 1px solid var(--border);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* Navbar */
        .site-navbar {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
        }

        .site-navbar .navbar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            text-decoration: none;
        }

        .navbar-logo .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            flex-shrink: 0;
        }

        .navbar-logo span.logo-text {
            color: var(--primary);
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.5px;
        }

        .navbar-nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .navbar-nav-links li a {
            display: block;
            padding: 8px 12px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: color var(--transition), background-color var(--transition);
            white-space: nowrap;
        }

        .navbar-nav-links li a:hover,
        .navbar-nav-links li a.active {
            color: var(--primary);
            background-color: var(--primary-pale);
        }

        .navbar-cta {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn {
            border-radius: var(--radius-btn);
            padding: 12px 20px;
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            border: 1.5px solid var(--primary);
            color: #fff;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-outline-primary {
            background-color: #fff;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline-primary:hover,
        .btn-outline-primary:focus {
            background-color: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(135deg, #EEF4FC 0%, #F6F9FE 50%, #FFFFFF 100%);
            padding: 56px 0 64px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(10,77,164,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,107,53,0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            padding: 6px 14px;
            margin-bottom: 16px;
            border: 1px solid rgba(255,107,53,0.25);
        }

        .hero-badge i {
            font-size: 12px;
        }

        .hero-title {
            font-size: clamp(30px, 4vw, 42px);
            font-weight: 700;
            color: var(--text);
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .hero-title .highlight {
            color: var(--primary);
        }

        .hero-description {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 620px;
            margin-bottom: 24px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .hero-meta-item i {
            color: var(--primary);
            font-size: 14px;
        }

        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background-color: var(--surface);
            border: 1px solid var(--border);
        }

        .hero-image-wrap img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        .hero-image-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(10,77,164,0.92);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            padding: 6px 16px;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 28px;
        }

        .hero-stat {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            min-width: 120px;
            flex: 1;
            box-shadow: var(--shadow-sm);
        }

        .hero-stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        .hero-stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            color: var(--success);
            margin-top: 4px;
        }

        /* News List */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
            border-radius: 12px;
            padding-left: 16px;
            padding-right: 16px;
            position: relative;
        }

        .news-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background-color: var(--primary);
            border-radius: 0 4px 4px 0;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .news-item:hover {
            background-color: var(--primary-pale);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
            border-bottom-color: transparent;
            border-radius: 12px;
        }

        .news-item:hover::before {
            opacity: 1;
        }

        .news-date {
            flex-shrink: 0;
            width: 70px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 10px 8px;
            box-shadow: var(--shadow-sm);
            height: fit-content;
        }

        .news-date-day {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }

        .news-date-month {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .news-content {
            flex: 1;
        }

        .news-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .news-title a {
            color: var(--text);
            transition: color var(--transition);
        }

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

        .news-summary {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .news-readmore {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }

        .news-readmore:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        .news-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary);
            background-color: var(--primary-pale);
            border-radius: var(--radius-badge);
            padding: 2px 10px;
            margin-right: 8px;
            margin-bottom: 6px;
        }

        /* Sidebar */
        .sidebar-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }

        .sidebar-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-pale);
        }

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

        .hot-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background-color: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-badge);
            padding: 5px 14px;
            transition: all var(--transition);
        }

        .hot-tag:hover {
            color: var(--primary);
            background-color: var(--primary-pale);
            border-color: var(--primary-light);
            transform: translateY(-1px);
        }

        .data-badge-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }

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

        .data-badge-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-pale);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .data-badge-info h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 2px;
        }

        .data-badge-info p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
        }

        .subscribe-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border: none;
            color: #fff;
        }

        .subscribe-card h4 {
            color: #fff;
            border-bottom-color: rgba(255,255,255,0.2);
        }

        .subscribe-card p {
            color: rgba(255,255,255,0.85);
            font-size: 14px;
            line-height: 1.7;
        }

        .subscribe-input {
            display: flex;
            gap: 8px;
            margin-top: 14px;
        }

        .subscribe-input input {
            flex: 1;
            border: 1px solid rgba(255,255,255,0.3);
            background: rgba(255,255,255,0.12);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 14px;
            font-size: 14px;
            height: 44px;
            transition: all var(--transition);
        }

        .subscribe-input input::placeholder {
            color: rgba(255,255,255,0.6);
        }

        .subscribe-input input:focus {
            outline: none;
            border-color: rgba(255,255,255,0.6);
            background: rgba(255,255,255,0.18);
        }

        .subscribe-input .btn {
            background-color: var(--accent);
            border: 1.5px solid var(--accent);
            color: #fff;
            height: 44px;
            flex-shrink: 0;
        }

        .subscribe-input .btn:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
        }

        /* FAQ */
        .faq-section .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: var(--surface);
        }

        .faq-section .accordion-button {
            background: var(--surface);
            color: var(--text);
            font-weight: 600;
            font-size: 15px;
            padding: 18px 24px;
            border-radius: var(--radius-card);
            transition: all var(--transition);
            box-shadow: none;
        }

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

        .faq-section .accordion-button:focus {
            outline: 3px solid rgba(10,77,164,0.25);
            outline-offset: -1px;
            box-shadow: none;
        }

        .faq-section .accordion-body {
            padding: 16px 24px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            background: var(--surface);
        }

        .faq-section .accordion-button::after {
            background-size: 1.2rem;
            transition: transform var(--transition);
        }

        /* CTA form */
        .cta-form-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px;
        }

        .cta-form-card .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }

        .cta-form-card .form-control {
            height: 44px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            transition: all var(--transition);
        }

        .cta-form-card .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(10,77,164,0.12);
            background-color: var(--primary-pale);
        }

        .cta-form-card textarea.form-control {
            height: auto;
            min-height: 90px;
            resize: vertical;
        }

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

        .cta-value-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 14px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.6;
        }

        .cta-value-list li i {
            color: var(--success);
            font-size: 16px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .privacy-note {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 12px;
            text-align: center;
        }

        /* Footer */
        .site-footer {
            background-color: #0A1F3C;
            color: rgba(255,255,255,0.75);
            padding-top: 64px;
            padding-bottom: 24px;
            font-size: 14px;
        }

        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .site-footer h4 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255,255,255,0.65);
            margin-bottom: 0;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: rgba(255,255,255,0.65);
            font-size: 14px;
            transition: color var(--transition);
        }

        .site-footer ul li a:hover {
            color: var(--accent);
        }

        .site-footer .footer-contact p {
            color: rgba(255,255,255,0.65);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer .footer-contact i {
            color: var(--accent);
            width: 18px;
            text-align: center;
            flex-shrink: 0;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: rgba(255,255,255,0.55);
        }

        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.55);
            transition: color var(--transition);
        }

        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        .site-footer .beian-info {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .site-footer .beian-info span {
            display: inline-flex;
            align-items: center;
        }

        /* Responsive */
        @media (max-width: 1199.98px) {
            .navbar-nav-links {
                gap: 4px;
            }
            .navbar-nav-links li a {
                padding: 8px 9px;
                font-size: 13.5px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-nav-links {
                display: none;
            }
            .site-navbar .navbar-inner {
                flex-wrap: wrap;
            }
            #mobileMenuBtn {
                display: inline-flex !important;
                align-items: center;
                justify-content: center;
                width: 40px;
                height: 40px;
                padding: 0;
                font-size: 18px;
            }
            .hero-section {
                padding: 40px 0 48px;
            }
            .hero-image-wrap img {
                height: 220px;
            }
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 767.98px) {
            .site-navbar {
                padding: 0 16px;
                height: auto;
                min-height: 64px;
                padding-top: 10px;
                padding-bottom: 10px;
            }
            .navbar-cta {
                gap: 8px;
            }
            .navbar-cta .btn-sm {
                padding: 7px 12px;
                font-size: 12px;
            }
            .hero-section {
                padding: 32px 0 40px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-description {
                font-size: 15px;
            }
            .hero-stats-row {
                flex-direction: column;
                gap: 12px;
            }
            .hero-stat {
                min-width: 100%;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
                padding: 20px 14px;
            }
            .news-date {
                width: 100%;
                flex-direction: row;
                gap: 8px;
                justify-content: flex-start;
                padding: 8px 14px;
            }
            .news-date-day {
                font-size: 18px;
            }
            .news-date-month {
                font-size: 13px;
            }
            .sidebar-card {
                padding: 18px;
            }
            .cta-form-card {
                padding: 24px 18px;
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-subtitle {
                font-size: 15px;
            }
            .faq-section .accordion-button {
                font-size: 14px;
                padding: 16px 18px;
            }
            .faq-section .accordion-body {
                padding: 14px 18px 18px;
                font-size: 14px;
            }
        }

        @media (max-width: 519.98px) {
            .hero-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .navbar-logo {
                font-size: 18px;
            }
            .navbar-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
                border-radius: 8px;
            }
            .subscribe-input {
                flex-direction: column;
                gap: 10px;
            }
            .subscribe-input input {
                width: 100%;
            }
            .subscribe-input .btn {
                width: 100%;
            }
            .site-footer .beian-info {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0A4DA4;
            --primary-dark: #083D87;
            --primary-light: #E8F1FF;
            --primary-pale: #F0F6FF;
            --accent: #FF6B35;
            --accent-hover: #E85A2A;
            --bg: #F6F9FE;
            --bg-alt: #EEF4FC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #5B6B7C;
            --text-muted: #8A98A8;
            --border: #DCE7F5;
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 30px rgba(2, 20, 60, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(2, 20, 60, 0.10);
            --shadow-sm: 0 2px 8px rgba(2, 20, 60, 0.04);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 56px;
            --nav-height: 68px;
            --transition: 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background-color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }
        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-surface {
            background-color: var(--surface);
        }
        .section-title {
            font-size: clamp(22px, 2.6vw, 30px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-pale);
            border: 1px solid var(--border);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* Navbar */
        .site-navbar {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
        }
        .site-navbar .navbar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            text-decoration: none;
        }
        .navbar-logo .logo-icon {
            width: 37px;
            height: 37px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .navbar-logo span.logo-text {
            color: var(--primary);
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.5px;
        }
        .navbar-nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .navbar-nav-links li a {
            display: block;
            padding: 8px 12px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: color var(--transition), background-color var(--transition);
            white-space: nowrap;
        }
        .navbar-nav-links li a:hover,
        .navbar-nav-links li a.active {
            color: var(--primary);
            background-color: var(--primary-pale);
        }
        .navbar-nav-links li a.active::after {
            content: "";
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 2px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }
        .navbar-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .navbar-cta .btn {
            padding: 10px 18px;
            font-size: 14px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .navbar-cta .btn-outline-primary {
            border: 1.5px solid var(--primary);
            color: var(--primary);
            background-color: transparent;
        }
        .navbar-cta .btn-outline-primary:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
        }
        .navbar-cta .btn-primary {
            background-color: var(--primary);
            border: 1.5px solid var(--primary);
            color: #fff;
        }
        .navbar-cta .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
        }
        #mobileMenuBtn {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            border-radius: 8px;
            padding: 6px 12px;
            font-size: 18px;
        }
        #mobileMenuBtn:hover {
            background: var(--primary-pale);
            color: var(--primary);
        }

        /* Offcanvas */
        .offcanvas {
            z-index: 1060;
        }
        .offcanvas-header {
            border-bottom: 1px solid var(--border);
            padding: 16px 20px;
        }
        .offcanvas-body {
            padding: 20px;
            background: var(--surface);
        }
        .offcanvas-body .mobile-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .offcanvas-body .mobile-links li a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            border-radius: 10px;
            transition: all var(--transition);
        }
        .offcanvas-body .mobile-links li a:hover,
        .offcanvas-body .mobile-links li a.active {
            background-color: var(--primary-pale);
            color: var(--primary);
        }
        .offcanvas-body .mobile-cta {
            display: flex;
            gap: 10px;
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }
        .offcanvas-body .mobile-cta .btn {
            flex: 1;
            text-align: center;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
        }

        /* Buttons */
        .btn-primary-custom {
            background-color: var(--primary);
            color: #fff;
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 12px 22px;
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
            cursor: pointer;
        }
        .btn-primary-custom:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-primary-custom:active {
            transform: translateY(1px);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #fff;
            border: 1.5px solid var(--accent);
            border-radius: var(--radius-btn);
            padding: 12px 22px;
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
            cursor: pointer;
        }
        .btn-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-outline-custom {
            background-color: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 12px 22px;
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
            cursor: pointer;
        }
        .btn-outline-custom:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
        }

        /* Hero small */
        .hero-small {
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }
        .hero-small::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 400px;
            height: 100%;
            background: linear-gradient(135deg, transparent 60%, var(--primary-pale) 100%);
            pointer-events: none;
        }
        .hero-small .container {
            position: relative;
            z-index: 1;
        }
        .hero-small h1 {
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }
        .hero-small p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .hero-breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .hero-breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .hero-breadcrumb a:hover {
            color: var(--primary);
        }
        .hero-breadcrumb .sep {
            color: var(--border);
        }
        .hero-breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* Metric cards */
        .metric-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            text-align: left;
        }
        .metric-card:hover {
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }
        .metric-card .metric-value {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }
        .metric-card .metric-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }
        .metric-card .metric-trend {
            font-size: 13px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .metric-card .metric-trend.up {
            color: var(--success);
        }
        .metric-card .metric-trend.down {
            color: var(--danger);
        }
        .metric-card .metric-trend.flat {
            color: var(--text-muted);
        }
        .metric-card .mini-bar {
            margin-top: 12px;
            height: 6px;
            background: var(--bg-alt);
            border-radius: 3px;
            overflow: hidden;
        }
        .metric-card .mini-bar .fill {
            height: 100%;
            background: var(--primary);
            border-radius: 3px;
            transition: width 0.8s ease;
        }
        .metric-card .mini-bar .fill.accent {
            background: var(--accent);
        }

        /* Depth content */
        .depth-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .depth-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .depth-card .depth-img {
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        .depth-card .depth-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .depth-card .depth-img img:hover {
            transform: scale(1.02);
        }
        .depth-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        .depth-card p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .depth-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }
        .depth-card ul li {
            padding: 8px 0 8px 24px;
            position: relative;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .depth-card ul li::before {
            content: "→";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
        }

        /* Steps */
        .step-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            position: relative;
        }
        .step-item:hover {
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .step-number.accent {
            background: var(--accent);
        }
        .step-item h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Compare cards */
        .compare-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
        }
        .compare-card:hover {
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }
        .compare-card .compare-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-pale);
            padding: 3px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 14px;
        }
        .compare-card .compare-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
        }
        .compare-card .compare-row:last-of-type {
            border-bottom: none;
        }
        .compare-card .compare-before {
            font-size: 14px;
            color: var(--text-muted);
        }
        .compare-card .compare-after {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }
        .compare-card .compare-improve {
            font-size: 16px;
            font-weight: 800;
            color: var(--success);
        }
        .compare-card .compare-improve.accent {
            color: var(--accent);
        }

        /* Service summary cards */
        .service-summary-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .service-summary-card:hover {
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }
        .service-summary-card .service-icon {
            font-size: 30px;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .service-summary-card .service-icon.accent {
            color: var(--accent);
        }
        .service-summary-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .service-summary-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .service-summary-card .service-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
        }
        .service-summary-card .service-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        /* FAQ */
        .faq-section {
            background-color: var(--surface);
        }
        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card) !important;
            overflow: hidden;
            margin-bottom: 12px;
            background: var(--surface);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .faq-accordion .accordion-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-accordion .accordion-header .accordion-button {
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            background: var(--surface);
            border-radius: var(--radius-card) !important;
            transition: all var(--transition);
        }
        .faq-accordion .accordion-header .accordion-button:not(.collapsed) {
            background: var(--primary-pale);
            color: var(--primary);
            box-shadow: none;
            border-bottom-left-radius: 0 !important;
            border-bottom-right-radius: 0 !important;
        }
        .faq-accordion .accordion-header .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(10, 77, 164, 0.2);
            outline: none;
        }
        .faq-accordion .accordion-header .accordion-button::after {
            background-size: 18px;
            width: 18px;
            height: 18px;
            background-color: transparent;
            border-radius: 50%;
        }
        .faq-accordion .accordion-body {
            padding: 18px 22px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            background: var(--surface);
        }
        .faq-accordion .accordion-body a {
            color: var(--primary);
            font-weight: 500;
        }
        .faq-accordion .accordion-body a:hover {
            color: var(--accent);
        }

        /* CTA form section */
        .cta-section {
            background: var(--bg-alt);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(10, 77, 164, 0.06);
            pointer-events: none;
        }
        .cta-left h2 {
            font-size: clamp(24px, 2.5vw, 30px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }
        .cta-left p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .cta-left ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .cta-left ul li {
            padding: 8px 0 8px 26px;
            position: relative;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .cta-left ul li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: 700;
        }
        .cta-form-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }
        .cta-form-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
        }
        .cta-form-card .form-control {
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 12px 14px;
            font-size: 15px;
            color: var(--text);
            background: var(--surface);
            transition: all var(--transition);
            height: 46px;
        }
        .cta-form-card .form-control:focus {
            border-color: var(--primary);
            background: var(--primary-pale);
            box-shadow: 0 0 0 3px rgba(10, 77, 164, 0.1);
            outline: none;
        }
        .cta-form-card textarea.form-control {
            height: auto;
            min-height: 100px;
            resize: vertical;
        }
        .cta-form-card .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .cta-form-card .privacy-note {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-top: 12px;
        }

        /* Footer */
        .site-footer {
            background-color: #0F172A;
            color: #AEB8C6;
            padding: 60px 0 0;
            margin-top: 0;
        }
        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #AEB8C6;
            max-width: 320px;
        }
        .site-footer .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: #AEB8C6;
            font-size: 14px;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--primary-light);
        }
        .site-footer .footer-contact h5 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .site-footer .footer-contact p {
            font-size: 14px;
            color: #AEB8C6;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-contact i {
            color: var(--primary-light);
            width: 18px;
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 12px;
        }
        .site-footer .footer-bottom .beian-info {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: #8A98A8;
        }
        .site-footer .footer-bottom .beian-info a {
            color: #8A98A8;
            transition: color var(--transition);
        }
        .site-footer .footer-bottom .beian-info a:hover {
            color: var(--primary-light);
        }
        .site-footer .footer-bottom a {
            color: #8A98A8;
            font-size: 13px;
            transition: color var(--transition);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1199.98px) {
            .site-footer .footer-top {
                grid-template-columns: 2fr 1fr 1fr;
            }
            .site-footer .footer-contact {
                grid-column: span 3;
            }
        }
        @media (max-width: 991.98px) {
            .navbar-nav-links {
                display: none;
            }
            #mobileMenuBtn {
                display: inline-block;
            }
            .navbar-inner {
                justify-content: space-between;
            }
            .navbar-cta {
                display: none;
            }
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .hero-small {
                padding: 36px 0 32px;
            }
            .hero-small h1 {
                font-size: 28px;
            }
            .depth-card {
                padding: 24px;
            }
            .cta-form-card {
                padding: 24px;
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .site-footer .footer-contact {
                grid-column: span 2;
            }
        }
        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .hero-small h1 {
                font-size: 24px;
            }
            .hero-small p {
                font-size: 15px;
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-contact {
                grid-column: span 1;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer .footer-bottom .beian-info {
                flex-direction: column;
                gap: 6px;
            }
            .metric-card .metric-value {
                font-size: 26px;
            }
            .depth-card {
                padding: 18px;
            }
            .cta-form-card {
                padding: 18px;
            }
            .cta-left h2 {
                font-size: 22px;
            }
            .compare-card .compare-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .site-navbar {
                padding: 0 16px;
                height: 60px;
            }
        }
        @media (max-width: 575.98px) {
            .hero-small h1 {
                font-size: 22px;
            }
            .hero-small p {
                font-size: 14px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-subtitle {
                font-size: 14px;
                margin-bottom: 24px;
            }
            .metric-card {
                padding: 16px 14px;
                border-radius: 12px;
            }
            .metric-card .metric-value {
                font-size: 24px;
            }
            .metric-card .metric-label {
                font-size: 13px;
            }
            .depth-card {
                border-radius: 12px;
                padding: 16px;
            }
            .depth-card h3 {
                font-size: 19px;
            }
            .step-item {
                padding: 18px 16px;
                border-radius: 12px;
            }
            .step-item h4 {
                font-size: 16px;
            }
            .compare-card {
                padding: 18px 16px;
                border-radius: 12px;
            }
            .service-summary-card {
                padding: 18px 16px;
                border-radius: 12px;
            }
            .cta-form-card {
                padding: 16px;
                border-radius: 12px;
            }
            .faq-accordion .accordion-header .accordion-button {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-accordion .accordion-body {
                padding: 14px 16px;
                font-size: 14px;
            }
            .btn-primary-custom, .btn-accent, .btn-outline-custom {
                padding: 10px 18px;
                font-size: 14px;
                border-radius: 10px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0A4DA4;
            --primary-dark: #083D87;
            --primary-light: #E8F1FF;
            --primary-pale: #F0F6FF;
            --accent: #FF6B35;
            --accent-hover: #E85A2A;
            --bg: #F6F9FE;
            --bg-alt: #EEF4FC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #5B6B7C;
            --text-muted: #8A98A8;
            --border: #DCE7F5;
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 30px rgba(2, 20, 60, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(2, 20, 60, 0.10);
            --shadow-sm: 0 2px 8px rgba(2, 20, 60, 0.04);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 56px;
            --nav-height: 68px;
            --transition: 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background-color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }
        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-surface {
            background-color: var(--surface);
        }
        .section-title {
            font-size: clamp(22px, 2.6vw, 30px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-pale);
            border: 1px solid var(--border);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* Navbar */
        .site-navbar {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
        }
        .site-navbar .navbar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            text-decoration: none;
        }
        .navbar-logo .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .navbar-logo span.logo-text {
            color: var(--primary);
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.5px;
        }
        .navbar-nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .navbar-nav-links li a {
            display: block;
            padding: 8px 12px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: color var(--transition), background-color var(--transition);
            white-space: nowrap;
        }
        .navbar-nav-links li a:hover,
        .navbar-nav-links li a.active {
            color: var(--primary);
            background-color: var(--primary-pale);
        }
        .navbar-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14.5px;
            padding: 10px 20px;
            transition: all var(--transition);
            border: 1.5px solid transparent;
            line-height: 1.5;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: 2px;
        }
        .btn-primary {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:active,
        .btn-primary:focus {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: none;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-outline-primary {
            background-color: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline-primary:hover,
        .btn-outline-primary:active,
        .btn-outline-primary:focus {
            background-color: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: none;
        }
        .btn-outline-primary:active {
            transform: translateY(1px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13.5px;
        }
        .btn-sm-mobile {
            display: none;
        }
        @media (max-width: 991.98px) {
            .navbar-nav-links {
                display: none;
            }
            .btn-sm-mobile {
                display: inline-block;
            }
            .navbar-cta .btn:not(.btn-sm-mobile) {
                display: none;
            }
        }
        @media (min-width: 992px) {
            .btn-sm-mobile {
                display: none !important;
            }
        }

        /* Offcanvas */
        .offcanvas {
            background-color: var(--surface);
            z-index: 1080;
        }
        .offcanvas-header {
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
        }
        .offcanvas-body {
            padding: 24px;
        }
        .offcanvas-body .navbar-nav-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
            width: 100%;
        }
        .offcanvas-body .navbar-nav-links li a {
            display: block;
            padding: 12px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 10px;
            transition: all var(--transition);
        }
        .offcanvas-body .navbar-nav-links li a:hover,
        .offcanvas-body .navbar-nav-links li a.active {
            color: var(--primary);
            background-color: var(--primary-pale);
        }
        .offcanvas-body .navbar-cta {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 16px;
        }

        /* Hero */
        .category-hero {
            background-color: var(--bg-alt);
            padding: 48px 0 56px;
            border-bottom: 1px solid var(--border);
        }
        .category-hero .breadcrumb-wrap {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .category-hero .breadcrumb-wrap a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .category-hero .breadcrumb-wrap a:hover {
            color: var(--primary);
        }
        .category-hero .breadcrumb-wrap .sep {
            margin: 0 6px;
            color: var(--text-muted);
        }
        .category-hero h1 {
            font-size: clamp(28px, 3.4vw, 38px);
            font-weight: 700;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .category-hero .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }
        .category-hero .hero-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            flex-wrap: wrap;
        }
        .category-hero .hero-meta .badge-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            background-color: var(--surface);
            border: 1px solid var(--border);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
        }
        .category-hero .hero-meta .badge-item i {
            color: var(--primary);
            font-size: 14px;
        }

        /* Service Matrix Layout */
        .service-matrix-wrap {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }
        .service-sidebar {
            flex: 0 0 260px;
            position: sticky;
            top: calc(var(--nav-height) + 24px);
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }
        .service-sidebar h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }
        .service-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .service-sidebar ul li {
            margin-bottom: 4px;
        }
        .service-sidebar ul li a {
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
            border-left: 3px solid transparent;
        }
        .service-sidebar ul li a:hover,
        .service-sidebar ul li a.active {
            color: var(--primary);
            background-color: var(--primary-pale);
            border-left-color: var(--primary);
        }
        .service-main {
            flex: 1;
            min-width: 0;
        }
        .service-article-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }
        .service-article-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }
        .service-article-card h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        .service-article-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .service-article-card p {
            font-size: 15.5px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 14px;
        }
        .service-article-card ul {
            margin: 0 0 14px;
            padding-left: 20px;
        }
        .service-article-card ul li {
            font-size: 15.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 6px;
        }
        .service-article-card .article-tags {
            display: flex;
            gap: 8px;
            margin-top: 12px;
            flex-wrap: wrap;
        }
        .service-article-card .article-tags span {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-pale);
            border: 1px solid var(--border);
            border-radius: var(--radius-badge);
            padding: 4px 12px;
        }

        /* Result Cards */
        .result-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .result-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .result-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .result-card .result-percent {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.2;
        }
        .result-card .result-percent .up-arrow {
            color: var(--accent);
            font-size: 20px;
        }
        .result-card .result-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .result-card .result-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .result-card .result-source {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 10px;
            padding-top: 8px;
            border-top: 1px dashed var(--border);
        }

        /* Data Strip */
        .data-strip {
            background-color: var(--primary);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 24px;
        }
        .data-strip .strip-item {
            text-align: center;
            flex: 1;
            min-width: 100px;
        }
        .data-strip .strip-number {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .data-strip .strip-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 4px;
        }

        /* FAQ */
        .faq-wrapper {
            display: flex;
            gap: 40px;
            align-items: flex-start;
        }
        .faq-left {
            flex: 0 0 300px;
        }
        .faq-left h2 {
            font-size: clamp(22px, 2.6vw, 28px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .faq-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-right {
            flex: 1;
            min-width: 0;
        }
        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background-color: var(--surface);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .accordion-custom .accordion-item:hover {
            box-shadow: var(--shadow-card);
        }
        .accordion-custom .accordion-header button {
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            background-color: var(--surface);
            border: none;
            width: 100%;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: background-color var(--transition);
        }
        .accordion-custom .accordion-header button:focus {
            outline: none;
            box-shadow: none;
        }
        .accordion-custom .accordion-header button:focus-visible {
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: -3px;
        }
        .accordion-custom .accordion-header button:hover {
            background-color: var(--primary-pale);
        }
        .accordion-custom .accordion-header button:not(.collapsed) {
            background-color: var(--primary-pale);
            color: var(--primary);
        }
        .accordion-custom .accordion-header button::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .accordion-custom .accordion-header button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .accordion-custom .accordion-body {
            padding: 16px 20px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            background-color: var(--bg-alt);
            border-top: 1px solid var(--border);
        }

        /* Form */
        .form-wrapper {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }
        .form-info {
            flex: 0 0 38%;
        }
        .form-info h2 {
            font-size: clamp(22px, 2.6vw, 28px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        .form-info p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .form-info ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .form-info ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14.5px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            line-height: 1.6;
        }
        .form-info ul li i {
            color: var(--success);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .form-card {
            flex: 1;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }
        .form-card .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .form-card .form-control {
            height: 44px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14.5px;
            color: var(--text);
            padding: 10px 14px;
            transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
        }
        .form-card .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(10, 77, 164, 0.15);
            background-color: var(--primary-pale);
        }
        .form-card textarea.form-control {
            height: auto;
            min-height: 100px;
            resize: vertical;
        }
        .form-card .form-select {
            height: 44px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14.5px;
        }
        .form-card .privacy-note {
            font-size: 12.5px;
            color: var(--text-muted);
            margin-top: 12px;
        }
        .btn-accent {
            background-color: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .btn-accent:hover,
        .btn-accent:active,
        .btn-accent:focus {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: none;
        }

        /* CTA Banner */
        .cta-banner {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }
        .cta-banner .cta-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .cta-banner .cta-text p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
        }
        .cta-banner .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Image Blocks */
        .img-cover {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }
        .img-cover img {
            width: 100%;
            height: auto;
            display: block;
        }
        .img-cover.alt-bg {
            background-color: var(--bg-alt);
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Footer */
        .site-footer {
            background-color: #0A1F3C;
            color: rgba(255, 255, 255, 0.75);
            padding-top: 56px;
            padding-bottom: 0;
        }
        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        }
        .site-footer .footer-brand h4 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 0;
        }
        .site-footer .footer-col h5,
        .site-footer .footer-contact h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--accent);
        }
        .site-footer .footer-contact p {
            font-size: 14px;
            margin-bottom: 8px;
            color: rgba(255, 255, 255, 0.65);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-contact p i {
            color: var(--accent);
            font-size: 13px;
            width: 16px;
            text-align: center;
        }
        .site-footer .footer-bottom {
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom .beian-info {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .service-matrix-wrap {
                flex-direction: column;
            }
            .service-sidebar {
                flex: 0 0 auto;
                position: static;
                width: 100%;
            }
            .faq-wrapper {
                flex-direction: column;
            }
            .faq-left {
                flex: 0 0 auto;
                width: 100%;
            }
            .form-wrapper {
                flex-direction: column;
            }
            .form-info {
                flex: 0 0 auto;
                width: 100%;
            }
            .result-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767.98px) {
            :root {
                --section-gap: var(--section-gap-mobile);
                --nav-height: 60px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-navbar {
                padding: 0 16px;
            }
            .navbar-logo span.logo-text {
                font-size: 17px;
            }
            .navbar-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
                border-radius: 8px;
            }
            .navbar-cta .btn:not(.btn-sm-mobile) {
                display: none;
            }
            .btn-sm-mobile {
                display: inline-block;
            }
            .category-hero {
                padding: 36px 0 40px;
            }
            .service-article-card {
                padding: 20px 16px;
            }
            .result-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                flex-direction: column;
                align-items: stretch;
            }
            .data-strip .strip-item {
                min-width: auto;
                padding: 8px 0;
            }
            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .site-footer .footer-bottom .beian-info {
                flex-direction: column;
                gap: 6px;
                align-items: flex-start;
            }
        }
        @media (max-width: 575.98px) {
            .result-grid {
                grid-template-columns: 1fr;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .service-article-card h2 {
                font-size: 19px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #0A4DA4;
            --primary-dark: #083D87;
            --primary-light: #E8F1FF;
            --primary-pale: #F0F6FF;
            --accent: #FF6B35;
            --accent-hover: #E85A2A;
            --bg: #F6F9FE;
            --bg-alt: #EEF4FC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #5B6B7C;
            --text-muted: #8A98A8;
            --border: #DCE7F5;
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 30px rgba(2, 20, 60, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(2, 20, 60, 0.10);
            --shadow-sm: 0 2px 8px rgba(2, 20, 60, 0.04);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 56px;
            --nav-height: 68px;
            --transition: 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background-color var(--transition), box-shadow var(--transition), transform var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }

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

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

        .section-title {
            font-size: clamp(22px, 2.6vw, 30px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-pale);
            border: 1px solid var(--border);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* Navbar */
        .site-navbar {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
        }

        .site-navbar .navbar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            text-decoration: none;
        }

        .navbar-logo .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            flex-shrink: 0;
        }

        .navbar-logo span.logo-text {
            color: var(--primary);
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.5px;
        }

        .navbar-nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .navbar-nav-links li a {
            display: block;
            padding: 8px 12px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: color var(--transition), background-color var(--transition);
            white-space: nowrap;
        }

        .navbar-nav-links li a:hover,
        .navbar-nav-links li a.active {
            color: var(--primary);
            background-color: var(--primary-pale);
        }

        .navbar-nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .navbar-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .navbar-cta .btn {
            border-radius: var(--radius-btn);
            padding: 8px 16px;
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
        }

        .navbar-cta .btn-outline-primary {
            border: 1.5px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }

        .navbar-cta .btn-outline-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }

        .navbar-cta .btn-primary {
            background: var(--primary);
            border: 1.5px solid var(--primary);
            color: #fff;
        }

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

        .btn-mobile-toggle {
            display: none;
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            font-size: 16px;
            cursor: pointer;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .btn-mobile-toggle:hover {
            background: var(--primary-light);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 20px 0 8px;
            background-color: var(--bg);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

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

        .breadcrumb-nav .separator {
            color: var(--text-muted);
            font-size: 12px;
        }

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

        /* Inner Hero */
        .inner-hero {
            padding: 40px 0 48px;
            background: linear-gradient(135deg, var(--bg-alt) 0%, #F0F6FF 55%, #FFFFFF 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .inner-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            background: rgba(10, 77, 164, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }

        .inner-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 300px;
            height: 160px;
            background: rgba(255, 107, 53, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .inner-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #FFF7F3;
            border: 1px solid #FFE0D0;
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .inner-hero .hero-badge i {
            font-size: 12px;
        }

        .inner-hero h1 {
            font-size: clamp(28px, 3.5vw, 38px);
            font-weight: 700;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .inner-hero .hero-lead {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.85;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .inner-hero .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .hero-promo-sticker {
            position: absolute;
            top: 32px;
            right: 32px;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 10px 18px;
            border-radius: var(--radius-badge);
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.25);
            z-index: 2;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
            animation: pulse-sticker 2.4s ease-in-out infinite;
        }

        @keyframes pulse-sticker {
            0%, 100% { transform: scale(1); box-shadow: 0 8px 24px rgba(255, 107, 53, 0.25); }
            50% { transform: scale(1.04); box-shadow: 0 12px 32px rgba(255, 107, 53, 0.35); }
        }

        /* Buttons global */
        .btn {
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            letter-spacing: 0.2px;
        }

        .btn-primary {
            background: var(--primary);
            border: 1.5px solid var(--primary);
            color: #fff;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(10, 77, 164, 0.25);
        }

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

        .btn-outline-primary {
            background: #fff;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline-primary:hover,
        .btn-outline-primary:focus {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--accent);
            border: 1.5px solid var(--accent);
            color: #fff;
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.25);
        }

        /* Cards */
        .card-custom {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            overflow: hidden;
        }

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

        /* Comparison Cards */
        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 20px;
        }

        .comparison-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .comparison-card .comp-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            background: var(--primary-pale);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .comparison-card .comp-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }

        .comparison-card .comp-numbers {
            display: flex;
            gap: 16px;
            align-items: center;
            margin-bottom: 14px;
            flex-wrap: wrap;
        }

        .comparison-card .comp-before,
        .comparison-card .comp-after {
            flex: 1;
            min-width: 90px;
            text-align: center;
            padding: 12px 10px;
            border-radius: 10px;
            font-size: 13px;
            font-weight: 500;
        }

        .comp-before {
            background: #F8FAFC;
            color: var(--text-muted);
            border: 1px dashed var(--border);
        }

        .comp-after {
            background: var(--primary-pale);
            color: var(--primary);
            border: 1px solid var(--primary-light);
            font-weight: 700;
        }

        .comparison-card .comp-change {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            font-weight: 700;
            color: var(--success);
            margin-bottom: 12px;
        }

        .comparison-card .comp-change.rise {
            color: var(--accent);
        }

        .comparison-card .comp-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .comparison-card .comp-source {
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }

        /* Deep content block */
        .deep-content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .deep-content-block .deep-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }

        .deep-content-block .deep-text p {
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
            font-size: 15.5px;
        }

        .deep-content-block .deep-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .deep-content-block .deep-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .deep-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }

        .deep-list li {
            padding: 8px 0 8px 28px;
            position: relative;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }

        .deep-list li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 10px;
            color: var(--success);
            font-size: 13px;
        }

        /* Chart placeholder */
        .chart-panel {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px 28px;
        }

        .chart-panel .chart-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }

        .chart-panel .chart-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
        }

        .chart-panel .chart-badge {
            font-size: 12px;
            font-weight: 600;
            background: #FFF7F3;
            border: 1px solid #FFE0D0;
            color: var(--accent);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
        }

        .chart-bars {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .chart-bar-item {
            display: grid;
            grid-template-columns: 120px 1fr 60px;
            align-items: center;
            gap: 16px;
        }

        .chart-bar-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            text-align: right;
        }

        .chart-bar-track {
            height: 12px;
            background: var(--bg-alt);
            border-radius: 999px;
            overflow: hidden;
        }

        .chart-bar-fill {
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--primary) 0%, #3B7ED6 100%);
            transition: width 1s ease;
        }

        .chart-bar-fill.accent {
            background: linear-gradient(90deg, var(--accent) 0%, #FF9A70 100%);
        }

        .chart-bar-value {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            text-align: left;
        }

        /* Process steps */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .step-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            position: relative;
            transition: all var(--transition);
            counter-increment: step;
        }

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

        .step-card .step-number {
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 14px;
        }

        .step-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-wrapper {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: start;
        }

        .faq-left h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .faq-left p {
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 15px;
        }

        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: 14px !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--surface);
            box-shadow: var(--shadow-sm);
        }

        .accordion-custom .accordion-button {
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            padding: 16px 20px;
            background: var(--surface);
            border: none;
            box-shadow: none;
            transition: all var(--transition);
        }

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

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(10, 77, 164, 0.15);
            border-color: transparent;
        }

        .accordion-custom .accordion-button::after {
            filter: sepia(1) saturate(8) hue-rotate(190deg);
        }

        .accordion-custom .accordion-body {
            background: var(--bg);
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding: 16px 20px;
        }

        /* Form */
        .contact-form-section {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px 36px;
        }

        .contact-form-wrapper {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 40px;
            align-items: start;
        }

        .contact-info-col h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .contact-info-col p {
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 15px;
            margin-bottom: 16px;
        }

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

        .contact-value-list li {
            padding: 8px 0 8px 28px;
            position: relative;
            color: var(--text-secondary);
            font-size: 14.5px;
            line-height: 1.7;
        }

        .contact-value-list li::before {
            content: '\f058';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 10px;
            color: var(--primary);
            font-size: 14px;
        }

        .form-card {
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            border: 1px solid var(--border);
        }

        .form-card .form-label {
            font-weight: 600;
            font-size: 14px;
            color: var(--text);
            margin-bottom: 6px;
        }

        .form-card .form-control,
        .form-card .form-select {
            height: 44px;
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 10px 14px;
            font-size: 15px;
            color: var(--text);
            background: var(--surface);
            transition: all var(--transition);
            margin-bottom: 14px;
        }

        .form-card .form-control:focus,
        .form-card .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(10, 77, 164, 0.12);
            background: var(--primary-pale);
        }

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

        .form-card .privacy-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 8px;
            line-height: 1.6;
        }

        .form-card .btn-submit {
            background: var(--accent);
            border: none;
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }

        .form-card .btn-submit:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3);
        }

        /* Trust indicators */
        .trust-row {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .trust-item i {
            color: var(--success);
            font-size: 14px;
        }

        /* Footer */
        .site-footer {
            background: #0A1F3C;
            color: #B8C7DE;
            padding: 60px 0 24px;
            font-size: 14px;
        }

        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer h4 {
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .site-footer h5 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .site-footer p {
            color: #B8C7DE;
            line-height: 1.75;
            font-size: 14px;
            margin-bottom: 6px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: #B8C7DE;
            text-decoration: none;
            transition: color var(--transition);
            font-size: 14px;
        }

        .site-footer ul li a:hover {
            color: var(--accent);
        }

        .site-footer .footer-contact p {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13.5px;
        }

        .site-footer .footer-contact i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }

        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            font-size: 13px;
            color: #8FA3BF;
        }

        .site-footer .footer-bottom a {
            color: #B8C7DE;
            text-decoration: none;
            transition: color var(--transition);
        }

        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        .site-footer .beian-info {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            align-items: center;
        }

        .site-footer .beian-info a {
            color: #8FA3BF;
            font-size: 13px;
        }

        .site-footer .beian-info a:hover {
            color: var(--accent);
        }

        /* Mobile offcanvas */
        .offcanvas-custom {
            background: var(--surface);
            border-left: 1px solid var(--border);
        }

        .offcanvas-custom .offcanvas-header {
            border-bottom: 1px solid var(--border);
            padding: 16px 20px;
        }

        .offcanvas-custom .offcanvas-body {
            padding: 16px 20px;
        }

        .offcanvas-custom .navbar-logo {
            font-size: 18px;
        }

        .offcanvas-custom .navbar-nav-links {
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
        }

        .offcanvas-custom .navbar-nav-links li a {
            padding: 12px 14px;
            font-size: 15px;
        }

        .offcanvas-custom .navbar-cta {
            flex-direction: column;
            gap: 8px;
            margin-top: 16px;
            width: 100%;
        }

        .offcanvas-custom .navbar-cta .btn {
            width: 100%;
            text-align: center;
            padding: 10px 16px;
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .site-navbar .navbar-nav-links {
                display: none;
            }

            .btn-mobile-toggle {
                display: inline-flex;
                align-items: center;
                gap: 6px;
            }

            .navbar-cta .btn btn-sm {
                display: none;
            }

            .navbar-cta {
                display: none;
            }

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

            .deep-content-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .steps-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .faq-wrapper {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .contact-form-wrapper {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .site-footer .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --section-gap: 56px;
            }

            .site-navbar {
                padding: 0 16px;
                height: 60px;
            }

            .navbar-logo span.logo-text {
                font-size: 17px;
            }

            .navbar-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
                border-radius: 8px;
            }

            .inner-hero {
                padding: 28px 0 36px;
            }

            .inner-hero h1 {
                font-size: 26px;
            }

            .inner-hero .hero-lead {
                font-size: 15px;
            }

            .hero-promo-sticker {
                position: static;
                display: inline-flex;
                margin-bottom: 16px;
                animation: none;
                box-shadow: 0 4px 12px rgba(255, 107, 53, 0.2);
            }

            .comparison-card {
                padding: 20px 16px;
            }

            .comparison-card .comp-numbers {
                flex-direction: column;
                gap: 8px;
            }

            .chart-bar-item {
                grid-template-columns: 70px 1fr 45px;
                gap: 8px;
            }

            .chart-bar-label {
                font-size: 11px;
                text-align: left;
            }

            .chart-bar-value {
                font-size: 12px;
            }

            .steps-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .step-card {
                padding: 18px 16px;
            }

            .contact-form-section {
                padding: 28px 18px;
            }

            .form-card {
                padding: 20px 16px;
            }

            .site-footer {
                padding: 40px 0 16px;
            }

            .site-footer .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

            .section-title {
                font-size: 22px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 575.98px) {
            :root {
                --section-gap-mobile: 44px;
            }

            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }

            .inner-hero h1 {
                font-size: 23px;
            }

            .inner-hero .hero-actions .btn {
                width: 100%;
                text-align: center;
            }

            .comparison-card .comp-before,
            .comparison-card .comp-after {
                min-width: 100%;
            }

            .chart-panel {
                padding: 20px 16px;
            }

            .chart-bar-item {
                grid-template-columns: 60px 1fr 40px;
                gap: 6px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #0A4DA4;
            --primary-dark: #083D87;
            --primary-light: #E8F1FF;
            --primary-pale: #F0F6FF;
            --accent: #FF6B35;
            --accent-hover: #E85A2A;
            --bg: #F6F9FE;
            --bg-alt: #EEF4FC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #5B6B7C;
            --text-muted: #8A98A8;
            --border: #DCE7F5;
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 30px rgba(2, 20, 60, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(2, 20, 60, 0.10);
            --shadow-sm: 0 2px 8px rgba(2, 20, 60, 0.04);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 56px;
            --nav-height: 68px;
            --transition: 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background-color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }
        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-surface {
            background-color: var(--surface);
        }
        .section-title {
            font-size: clamp(22px, 2.6vw, 30px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-pale);
            border: 1px solid var(--border);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* Navbar */
        .site-navbar {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
        }
        .site-navbar .navbar-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            text-decoration: none;
            flex-shrink: 0;
        }
        .navbar-logo .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .navbar-logo span.logo-text {
            color: var(--primary);
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.5px;
        }
        .navbar-nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .navbar-nav-links li a {
            display: block;
            padding: 8px 12px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: color var(--transition), background-color var(--transition);
            white-space: nowrap;
        }
        .navbar-nav-links li a:hover,
        .navbar-nav-links li a.active {
            color: var(--primary);
            background-color: var(--primary-pale);
        }
        .navbar-nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }
        .navbar-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .navbar-cta .btn {
            font-size: 13.5px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            white-space: nowrap;
        }

        /* Buttons */
        .btn-primary {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 12px 20px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            box-shadow: none;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: none;
        }
        .btn-primary:active {
            background-color: var(--primary-dark) !important;
            border-color: var(--primary-dark) !important;
            transform: translateY(1px);
        }
        .btn-outline-primary {
            background-color: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 12px 20px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            box-shadow: none;
        }
        .btn-outline-primary:hover,
        .btn-outline-primary:focus {
            background-color: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: none;
        }
        .btn-outline-primary:active {
            background-color: var(--primary-light) !important;
            border-color: var(--primary) !important;
            transform: translateY(1px);
        }
        .btn-accent {
            background-color: var(--accent);
            border-color: var(--accent);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 12px 20px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            box-shadow: none;
        }
        .btn-accent:hover,
        .btn-accent:focus {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: none;
        }
        .btn-accent:active {
            background-color: var(--accent-hover) !important;
            border-color: var(--accent-hover) !important;
            transform: translateY(1px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13.5px;
        }

        /* Cards */
        .card-custom {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }
        .card-custom .card-body {
            padding: 24px;
        }
        .card-custom .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .card-custom .card-text {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Badge */
        .badge-custom {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.3px;
        }
        .badge-primary {
            background-color: var(--primary-pale);
            color: var(--primary);
            border: 1px solid var(--border);
        }
        .badge-accent {
            background-color: #FFF0E9;
            color: var(--accent);
            border: 1px solid #FFD9C7;
        }
        .badge-success {
            background-color: #E7F9F1;
            color: var(--success);
            border: 1px solid #B8EED8;
        }

        /* Hero */
        .hero-section {
            background-color: var(--bg-alt);
            padding-top: 56px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--border);
        }
        .hero-section .hero-content {
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-section .hero-left {
            flex: 1 1 50%;
            min-width: 300px;
        }
        .hero-section .hero-left h1 {
            font-size: clamp(28px, 3.4vw, 40px);
            font-weight: 700;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .hero-section .hero-left .hero-sub {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 20px;
        }
        .hero-section .hero-right {
            flex: 1 1 40%;
            min-width: 280px;
        }
        .hero-section .hero-right .card-custom {
            padding: 20px;
        }
        .hero-section .hero-right .stat-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .hero-section .hero-right .stat-item {
            flex: 1 1 40%;
            text-align: center;
            padding: 12px;
            background-color: var(--primary-pale);
            border-radius: 12px;
            border: 1px solid var(--border);
        }
        .hero-section .hero-right .stat-item .stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-section .hero-right .stat-item .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        .hero-section .hero-right .stat-note {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            margin-bottom: 12px;
        }
        .hero-section .hero-right .stat-trend {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--success);
            justify-content: center;
        }

        /* Metric Strip */
        .metric-strip {
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            padding-top: 32px;
            padding-bottom: 32px;
        }
        .metric-strip .metric-grid {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .metric-strip .metric-item {
            flex: 1 1 200px;
            text-align: center;
            padding: 16px;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .metric-strip .metric-item:hover {
            box-shadow: var(--shadow-card);
            border-color: var(--primary-light);
        }
        .metric-strip .metric-item .metric-num {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .metric-strip .metric-item .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
        }
        .metric-strip .metric-item .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            color: var(--success);
            margin-top: 4px;
        }

        /* Deep Content */
        .deep-content {
            background-color: var(--surface);
            padding: 48px 24px;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
        }
        .deep-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }
        .deep-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin-top: 24px;
            margin-bottom: 10px;
        }
        .deep-content p {
            font-size: 15.5px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 14px;
        }
        .deep-content ul,
        .deep-content ol {
            padding-left: 24px;
            margin-bottom: 16px;
        }
        .deep-content li {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 6px;
        }
        .deep-content .content-img {
            border-radius: 12px;
            overflow: hidden;
            margin: 20px 0;
            max-width: 65%;
            border: 1px solid var(--border);
        }
        .deep-content .content-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .deep-content .highlight-box {
            background-color: var(--primary-pale);
            border-left: 4px solid var(--primary);
            border-radius: 8px;
            padding: 16px 20px;
            margin: 16px 0;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .deep-content .key-points {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin: 16px 0;
        }
        .deep-content .key-point {
            flex: 1 1 200px;
            background-color: var(--bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .deep-content .key-point .point-icon {
            color: var(--accent);
            font-size: 18px;
            margin-bottom: 8px;
        }

        /* FAQ */
        .faq-section {
            background-color: var(--surface);
        }
        .faq-layout {
            display: flex;
            gap: 40px;
            align-items: flex-start;
        }
        .faq-left {
            flex: 0 0 30%;
            position: sticky;
            top: 90px;
        }
        .faq-left h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        .faq-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-left .faq-badge {
            display: inline-block;
            background-color: var(--accent);
            color: #fff;
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .faq-right {
            flex: 1 1 70%;
        }
        .accordion-faq .accordion-item {
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 12px;
            background-color: var(--surface);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
        }
        .accordion-faq .accordion-item:hover {
            box-shadow: var(--shadow-card);
            border-color: var(--primary-light);
        }
        .accordion-faq .accordion-button {
            background-color: var(--surface);
            color: var(--text);
            font-weight: 600;
            font-size: 15.5px;
            padding: 18px 20px;
            border: none;
            box-shadow: none;
            transition: all var(--transition);
            border-radius: 14px;
        }
        .accordion-faq .accordion-button:not(.collapsed) {
            background-color: var(--primary-pale);
            color: var(--primary);
            box-shadow: none;
            border-bottom: 1px solid var(--border);
            border-radius: 14px 14px 0 0;
        }
        .accordion-faq .accordion-button:focus {
            box-shadow: none;
            outline: 3px solid rgba(10, 77, 164, 0.35);
            outline-offset: 2px;
        }
        .accordion-faq .accordion-button::after {
            background-size: 1.25rem;
            transition: transform var(--transition);
        }
        .accordion-faq .accordion-body {
            background-color: var(--bg);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            padding: 18px 20px;
            border-radius: 0 0 14px 14px;
        }

        /* Related Services */
        .related-services .service-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            height: 100%;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-services .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }
        .related-services .service-card .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background-color: var(--primary-pale);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .related-services .service-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .related-services .service-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex-grow: 1;
            margin-bottom: 12px;
        }
        .related-services .service-card a {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-services .service-card a:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* Trend Data */
        .trend-block {
            background-color: var(--bg-alt);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
        }
        .trend-block h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }
        .trend-block .trend-row {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            flex-wrap: wrap;
        }
        .trend-block .trend-row:last-child {
            border-bottom: none;
        }
        .trend-block .trend-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            flex: 0 0 140px;
        }
        .trend-block .trend-bar-wrap {
            flex: 1 1 200px;
            height: 8px;
            background-color: #DDE7F3;
            border-radius: 999px;
            overflow: hidden;
        }
        .trend-block .trend-bar {
            height: 100%;
            background-color: var(--primary);
            border-radius: 999px;
            transition: width 0.6s ease;
        }
        .trend-block .trend-pct {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            flex: 0 0 60px;
            text-align: right;
        }

        /* CTA Form */
        .cta-section {
            background-color: var(--primary);
            border-radius: 20px;
            padding: 48px 40px;
            box-shadow: 0 20px 60px rgba(10, 77, 164, 0.25);
        }
        .cta-section .cta-inner {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            align-items: center;
        }
        .cta-section .cta-info {
            flex: 1 1 40%;
            min-width: 280px;
            color: #fff;
        }
        .cta-section .cta-info h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .cta-section .cta-info p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 20px;
        }
        .cta-section .cta-info ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .cta-section .cta-info ul li {
            font-size: 14.5px;
            color: rgba(255, 255, 255, 0.9);
            padding: 6px 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .cta-section .cta-info ul li i {
            color: var(--accent);
            font-size: 14px;
        }
        .cta-section .cta-form-card {
            flex: 1 1 55%;
            min-width: 280px;
            background-color: var(--surface);
            border-radius: 16px;
            padding: 28px;
            box-shadow: var(--shadow-card);
        }
        .cta-section .cta-form-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }
        .cta-section .cta-form-card .form-label {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .cta-section .cta-form-card .form-control {
            height: 44px;
            border: 1px solid var(--border);
            border-radius: 10px;
            font-size: 14.5px;
            color: var(--text);
            padding: 10px 14px;
            transition: all var(--transition);
            background-color: var(--surface);
        }
        .cta-section .cta-form-card .form-control:focus {
            border-color: var(--primary);
            background-color: var(--primary-pale);
            box-shadow: 0 0 0 3px rgba(10, 77, 164, 0.15);
        }
        .cta-section .cta-form-card textarea.form-control {
            height: auto;
            min-height: 80px;
            resize: vertical;
        }
        .cta-section .cta-form-card .privacy-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 10px;
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background-color: #0A1F3C;
            color: rgba(255, 255, 255, 0.75);
            padding-top: 54px;
            padding-bottom: 0;
        }
        .site-footer .footer-top {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .site-footer .footer-brand {
            flex: 1 1 22%;
            min-width: 220px;
        }
        .site-footer .footer-brand h4 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 13.5px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
        }
        .site-footer .footer-col {
            flex: 1 1 18%;
            min-width: 140px;
        }
        .site-footer .footer-col h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 6px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13.5px;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--accent);
        }
        .site-footer .footer-contact {
            flex: 1 1 22%;
            min-width: 220px;
        }
        .site-footer .footer-contact h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .site-footer .footer-contact p {
            font-size: 13.5px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-contact i {
            color: var(--accent);
            width: 16px;
            flex-shrink: 0;
        }
        .site-footer .footer-bottom {
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.55);
        }
        .site-footer .footer-bottom .beian-info {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* Offcanvas */
        .offcanvas-mobile {
            background-color: var(--surface);
            max-width: 320px;
        }
        .offcanvas-mobile .offcanvas-header {
            border-bottom: 1px solid var(--border);
            padding: 16px 20px;
        }
        .offcanvas-mobile .offcanvas-title {
            font-weight: 700;
            color: var(--text);
            font-size: 18px;
        }
        .offcanvas-mobile .offcanvas-body {
            padding: 20px;
        }
        .offcanvas-mobile .mobile-nav-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .offcanvas-mobile .mobile-nav-list li a {
            display: block;
            padding: 12px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 10px;
            transition: all var(--transition);
        }
        .offcanvas-mobile .mobile-nav-list li a:hover,
        .offcanvas-mobile .mobile-nav-list li a.active {
            color: var(--primary);
            background-color: var(--primary-pale);
        }
        .offcanvas-mobile .mobile-cta {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .navbar-nav-links {
                display: none;
            }
            .navbar-cta {
                display: none;
            }
            .navbar-inner .d-lg-none {
                display: flex !important;
            }
            .faq-layout {
                flex-direction: column;
                gap: 28px;
            }
            .faq-left {
                position: static;
                flex: 0 0 auto;
            }
            .faq-right {
                flex: 1 1 100%;
            }
            .cta-inner {
                flex-direction: column;
            }
        }
        @media (max-width: 767.98px) {
            :root {
                --section-gap: 56px;
                --section-gap-mobile: 48px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-section .hero-content {
                flex-direction: column;
                gap: 24px;
            }
            .hero-section .hero-left {
                flex: 1 1 100%;
            }
            .hero-section .hero-right {
                flex: 1 1 100%;
            }
            .deep-content .content-img {
                max-width: 100%;
            }
            .metric-strip .metric-grid {
                flex-direction: column;
                gap: 12px;
            }
            .metric-strip .metric-item {
                flex: 1 1 100%;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: 16px;
            }
            .footer-top {
                flex-direction: column;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .footer-bottom .beian-info {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }
        @media (max-width: 575.98px) {
            .section-title {
                font-size: 22px;
            }
            .hero-section .hero-left h1 {
                font-size: 26px;
            }
            .card-custom {
                border-radius: 12px;
                box-shadow: var(--shadow-sm);
            }
            .card-custom:hover {
                box-shadow: var(--shadow-card);
                transform: translateY(-2px);
            }
            .deep-content {
                padding: 24px 16px;
            }
            .cta-section .cta-form-card {
                padding: 20px 16px;
            }
            .btn-primary,
            .btn-outline-primary,
            .btn-accent {
                padding: 10px 16px;
                font-size: 14px;
            }
        }

/* roulang page: category6 */
:root {
      --primary: #0A4DA4;
      --primary-dark: #083D87;
      --primary-light: #E8F1FF;
      --primary-pale: #F0F6FF;
      --accent: #FF6B35;
      --accent-hover: #E85A2A;
      --bg: #F6F9FE;
      --bg-alt: #EEF4FC;
      --surface: #FFFFFF;
      --text: #0F172A;
      --text-secondary: #5B6B7C;
      --text-muted: #8A98A8;
      --border: #DCE7F5;
      --success: #10B981;
      --warning: #F59E0B;
      --danger: #EF4444;
      --radius-card: 16px;
      --radius-btn: 12px;
      --radius-badge: 999px;
      --shadow-card: 0 8px 30px rgba(2, 20, 60, 0.06);
      --shadow-card-hover: 0 14px 40px rgba(2, 20, 60, 0.10);
      --shadow-sm: 0 2px 8px rgba(2, 20, 60, 0.04);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --container-max: 1200px;
      --section-gap: 80px;
      --section-gap-mobile: 56px;
      --nav-height: 68px;
      --transition: 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: var(--font-stack);
      font-size: 16px;
      line-height: 1.75;
      color: var(--text);
      background-color: var(--bg);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }
    a {
      color: var(--primary);
      text-decoration: none;
      transition: color var(--transition), border-color var(--transition), background-color var(--transition);
    }
    a:hover {
      color: var(--primary-dark);
      text-decoration: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
      line-height: inherit;
    }
    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
      outline: 3px solid rgba(10, 77, 164, 0.35);
      outline-offset: 2px;
    }
    .container {
      max-width: var(--container-max);
      padding-left: 24px;
      padding-right: 24px;
      margin-left: auto;
      margin-right: auto;
    }
    .section {
      padding-top: var(--section-gap);
      padding-bottom: var(--section-gap);
    }
    .section-alt {
      background-color: var(--bg-alt);
    }
    .section-surface {
      background-color: var(--surface);
    }
    .section-title {
      font-size: clamp(22px, 2.6vw, 30px);
      font-weight: 700;
      color: var(--text);
      margin-bottom: 8px;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 720px;
      margin-bottom: 36px;
      line-height: 1.8;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background-color: var(--primary-pale);
      border: 1px solid var(--border);
      border-radius: var(--radius-badge);
      padding: 4px 14px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    /* Navbar */
    .site-navbar {
      position: sticky;
      top: 0;
      z-index: 1050;
      background-color: var(--surface);
      border-bottom: 1px solid var(--border);
      height: var(--nav-height);
      display: flex;
      align-items: center;
      padding: 0 24px;
    }
    .site-navbar .navbar-inner {
      max-width: var(--container-max);
      margin: 0 auto;
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .navbar-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      white-space: nowrap;
      text-decoration: none;
    }
    .navbar-logo .logo-icon {
      width: 36px;
      height: 36px;
      background-color: var(--primary);
      color: #fff;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 800;
      flex-shrink: 0;
    }
    .navbar-logo span.logo-text {
      color: var(--primary);
      font-weight: 700;
      font-size: 20px;
      letter-spacing: 0.5px;
    }
    .navbar-nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      list-style: none;
      margin: 0;
      padding: 0;
      flex-wrap: wrap;
    }
    .navbar-nav-links li a {
      display: block;
      padding: 8px 12px;
      font-size: 14.5px;
      font-weight: 500;
      color: var(--text-secondary);
      border-radius: 8px;
      position: relative;
      transition: color var(--transition), background-color var(--transition);
      white-space: nowrap;
    }
    .navbar-nav-links li a:hover,
    .navbar-nav-links li a.active {
      color: var(--primary);
      background-color: var(--primary-pale);
    }
    .navbar-nav-links li a.active::after {
      content: '';
      position: absolute;
      left: 12px;
      right: 12px;
      bottom: 2px;
      height: 2px;
      background-color: var(--primary);
      border-radius: 2px;
    }
    .navbar-cta {
      display: flex;
      align-items: center;
      gap: 10px;
      white-space: nowrap;
    }
    .navbar-cta .btn {
      font-size: 14px;
      font-weight: 600;
      padding: 10px 18px;
      border-radius: var(--radius-btn);
      transition: all var(--transition);
    }
    .navbar-cta .btn-outline-primary {
      border: 1.5px solid var(--primary);
      color: var(--primary);
      background-color: transparent;
    }
    .navbar-cta .btn-outline-primary:hover {
      background-color: var(--primary-light);
      border-color: var(--primary-dark);
      color: var(--primary-dark);
    }
    .navbar-cta .btn-primary {
      background-color: var(--primary);
      border: 1.5px solid var(--primary);
      color: #fff;
    }
    .navbar-cta .btn-primary:hover {
      background-color: var(--primary-dark);
      border-color: var(--primary-dark);
      color: #fff;
    }
    .btn-primary {
      background-color: var(--primary);
      border: 1.5px solid var(--primary);
      color: #fff;
      border-radius: var(--radius-btn);
      padding: 12px 20px;
      font-weight: 600;
      transition: all var(--transition);
    }
    .btn-primary:hover,
    .btn-primary:focus {
      background-color: var(--primary-dark);
      border-color: var(--primary-dark);
      color: #fff;
    }
    .btn-primary:active {
      transform: translateY(1px);
    }
    .btn-outline-primary {
      border: 1.5px solid var(--primary);
      color: var(--primary);
      background-color: transparent;
      border-radius: var(--radius-btn);
      padding: 12px 20px;
      font-weight: 600;
      transition: all var(--transition);
    }
    .btn-outline-primary:hover {
      background-color: var(--primary-light);
      color: var(--primary-dark);
      border-color: var(--primary-dark);
    }
    .btn-accent {
      background-color: var(--accent);
      border: 1.5px solid var(--accent);
      color: #fff;
      border-radius: var(--radius-btn);
      padding: 12px 20px;
      font-weight: 600;
      transition: all var(--transition);
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      border-color: var(--accent-hover);
      color: #fff;
    }
    /* Hero */
    .hero-section {
      position: relative;
      background: linear-gradient(135deg, #0A1F3C 0%, #0A4DA4 55%, #0D3F88 100%);
      min-height: 520px;
      display: flex;
      align-items: center;
      overflow: hidden;
      padding: 80px 0;
    }
    .hero-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.18;
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      width: 100%;
    }
    .hero-breadcrumb {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.75);
      margin-bottom: 20px;
      flex-wrap: wrap;
    }
    .hero-breadcrumb a {
      color: rgba(255, 255, 255, 0.85);
      transition: color var(--transition);
    }
    .hero-breadcrumb a:hover {
      color: #fff;
    }
    .hero-breadcrumb .separator {
      color: rgba(255, 255, 255, 0.5);
    }
    .hero-badge {
      display: inline-block;
      background-color: var(--accent);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 1px;
      padding: 5px 14px;
      border-radius: var(--radius-badge);
      margin-bottom: 16px;
      text-transform: uppercase;
    }
    .hero-section h1 {
      font-size: clamp(32px, 4.5vw, 46px);
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      line-height: 1.25;
    }
    .hero-section .hero-lead {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.82);
      max-width: 640px;
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .hero-meta-row {
      display: flex;
      align-items: center;
      gap: 20px;
      flex-wrap: wrap;
    }
    .hero-meta-item {
      display: flex;
      align-items: center;
      gap: 8px;
      color: rgba(255, 255, 255, 0.8);
      font-size: 14px;
    }
    .hero-meta-item i {
      color: var(--accent);
    }
    .hero-card {
      background-color: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.18);
      backdrop-filter: blur(8px);
      border-radius: var(--radius-card);
      padding: 28px;
    }
    .hero-card h3 {
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .hero-card p {
      color: rgba(255, 255, 255, 0.8);
      font-size: 14.5px;
      line-height: 1.75;
      margin-bottom: 0;
    }
    .hero-stat-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 18px;
    }
    .hero-stat-item {
      text-align: center;
      padding: 14px 8px;
      background-color: rgba(255, 255, 255, 0.06);
      border-radius: 12px;
    }
    .hero-stat-item .number {
      font-size: 26px;
      font-weight: 800;
      color: #fff;
      display: block;
    }
    .hero-stat-item .label {
      font-size: 12px;
      color: rgba(255, 255, 255, 0.7);
      display: block;
      margin-top: 4px;
    }
    /* Cards */
    .content-card {
      background-color: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 28px;
      transition: all var(--transition);
      height: 100%;
    }
    .content-card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
      border-color: var(--primary-light);
    }
    .content-card .card-icon {
      width: 52px;
      height: 52px;
      background-color: var(--primary-pale);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: var(--primary);
      margin-bottom: 16px;
    }
    .content-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 10px;
    }
    .content-card p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 0;
    }
    /* Brand intro section */
    .brand-intro-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .brand-intro-text h2 {
      font-size: clamp(24px, 3vw, 32px);
      font-weight: 700;
      color: var(--text);
      margin-bottom: 20px;
    }
    .brand-intro-text p {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.9;
      margin-bottom: 16px;
    }
    .brand-intro-image {
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      aspect-ratio: 4/3;
    }
    .brand-intro-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    /* Timeline */
    .timeline-wrapper {
      position: relative;
      padding-left: 32px;
    }
    .timeline-wrapper::before {
      content: '';
      position: absolute;
      left: 10px;
      top: 0;
      bottom: 0;
      width: 2px;
      background: linear-gradient(180deg, var(--primary) 0%, var(--border) 100%);
      border-radius: 2px;
    }
    .timeline-item {
      position: relative;
      padding-bottom: 32px;
    }
    .timeline-item:last-child {
      padding-bottom: 0;
    }
    .timeline-item::before {
      content: '';
      position: absolute;
      left: -27px;
      top: 6px;
      width: 12px;
      height: 12px;
      background-color: var(--primary);
      border: 2px solid #fff;
      border-radius: 50%;
      box-shadow: 0 0 0 3px var(--primary-light);
    }
    .timeline-item .timeline-date {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--accent);
      background-color: rgba(255, 107, 53, 0.1);
      padding: 3px 12px;
      border-radius: var(--radius-badge);
      margin-bottom: 8px;
    }
    .timeline-item h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 8px;
    }
    .timeline-item p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 0;
    }
    /* Stats bar */
    .stats-bar-wrapper {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .stat-card {
      background-color: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 24px;
      text-align: center;
      transition: all var(--transition);
    }
    .stat-card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-3px);
    }
    .stat-card .stat-number {
      font-size: 34px;
      font-weight: 800;
      color: var(--primary);
      display: block;
      line-height: 1.2;
    }
    .stat-card .stat-label {
      font-size: 14px;
      color: var(--text-secondary);
      margin-top: 6px;
      display: block;
    }
    .stat-card .stat-trend {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 13px;
      font-weight: 600;
      color: var(--success);
      margin-top: 10px;
    }
    .stat-card .stat-trend.up {
      color: var(--success);
    }
    .stat-card .stat-trend.down {
      color: var(--danger);
    }
    /* Service matrix */
    .service-matrix-row {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 24px;
    }
    .service-card {
      background-color: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      transition: all var(--transition);
    }
    .service-card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
      border-color: var(--primary-light);
    }
    .service-card .service-img {
      aspect-ratio: 16/9;
      overflow: hidden;
    }
    .service-card .service-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .service-card:hover .service-img img {
      transform: scale(1.05);
    }
    .service-card .service-body {
      padding: 22px;
    }
    .service-card .service-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 10px;
    }
    .service-card .service-body p {
      font-size: 14.5px;
      color: var(--text-secondary);
      line-height: 1.75;
      margin-bottom: 14px;
    }
    .service-card .service-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: all var(--transition);
    }
    .service-card .service-link:hover {
      color: var(--primary-dark);
      gap: 10px;
    }
    /* News list */
    .news-item {
      display: flex;
      gap: 20px;
      background-color: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      padding: 22px;
      margin-bottom: 18px;
      transition: all var(--transition);
    }
    .news-item:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-3px);
      border-left: 3px solid var(--primary);
    }
    .news-date {
      flex-shrink: 0;
      width: 70px;
      height: 70px;
      background-color: var(--primary-pale);
      border-radius: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: var(--primary);
    }
    .news-date .day {
      font-size: 24px;
      font-weight: 800;
      line-height: 1.1;
    }
    .news-date .month {
      font-size: 12px;
      font-weight: 600;
    }
    .news-body h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 8px;
    }
    .news-body p {
      font-size: 14.5px;
      color: var(--text-secondary);
      line-height: 1.75;
      margin-bottom: 10px;
    }
    .news-body .news-link {
      font-size: 13.5px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-body .news-link:hover {
      color: var(--primary-dark);
    }
    /* FAQ */
    .faq-wrapper {
      display: grid;
      grid-template-columns: 0.9fr 1.6fr;
      gap: 40px;
      align-items: start;
    }
    .faq-left h2 {
      font-size: clamp(24px, 3vw, 30px);
      font-weight: 700;
      color: var(--text);
      margin-bottom: 12px;
    }
    .faq-left p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.8;
    }
    .accordion-item {
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      margin-bottom: 14px;
      overflow: hidden;
      background-color: var(--surface);
    }
    .accordion-button {
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      background-color: var(--surface);
      border: none;
      box-shadow: none;
    }
    .accordion-button:not(.collapsed) {
      background-color: var(--bg-alt);
      color: var(--primary);
      box-shadow: none;
    }
    .accordion-button:focus {
      box-shadow: none;
      border-color: transparent;
    }
    .accordion-button::after {
      background-size: 14px;
      transition: transform 0.3s;
    }
    .accordion-body {
      padding: 18px 22px;
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.85;
      background-color: var(--surface);
    }
    /* Form */
    .form-section {
      background-color: var(--bg-alt);
    }
    .form-wrapper {
      display: grid;
      grid-template-columns: 0.9fr 1.4fr;
      gap: 40px;
      align-items: start;
    }
    .form-info h2 {
      font-size: clamp(24px, 3vw, 30px);
      font-weight: 700;
      color: var(--text);
      margin-bottom: 16px;
    }
    .form-info p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .form-value-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .form-value-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 14px;
      font-size: 15px;
      color: var(--text-secondary);
    }
    .form-value-list li i {
      color: var(--success);
      font-size: 18px;
      flex-shrink: 0;
      margin-top: 3px;
    }
    .form-card {
      background-color: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 32px;
    }
    .form-card h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 20px;
    }
    .form-control {
      height: 44px;
      border: 1px solid var(--border);
      border-radius: var(--radius-btn);
      padding: 10px 14px;
      font-size: 15px;
      color: var(--text);
      transition: all var(--transition);
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(10, 77, 164, 0.12);
      background-color: var(--primary-pale);
    }
    textarea.form-control {
      height: auto;
      min-height: 120px;
      resize: vertical;
    }
    .form-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 6px;
    }
    .form-text-privacy {
      font-size: 12.5px;
      color: var(--text-muted);
      margin-top: 10px;
      line-height: 1.6;
    }
    /* Footer */
    .site-footer {
      background-color: #0A1F3C;
      color: rgba(255, 255, 255, 0.75);
      padding-top: 56px;
      padding-bottom: 24px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 36px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .footer-brand h4 {
      color: #fff;
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.65);
      line-height: 1.75;
    }
    .footer-col h5 {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 14px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col ul li {
      margin-bottom: 8px;
    }
    .footer-col ul li a {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.65);
      transition: color var(--transition), padding-left var(--transition);
    }
    .footer-col ul li a:hover {
      color: var(--accent);
      padding-left: 4px;
    }
    .footer-contact h5 {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 14px;
    }
    .footer-contact p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.65);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-contact p i {
      color: var(--accent);
      font-size: 14px;
      width: 18px;
      text-align: center;
    }
    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-top: 20px;
      font-size: 13px;
    }
    .beian-info {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
    }
    .beian-info span {
      color: rgba(255, 255, 255, 0.55);
    }
    .beian-info a,
    .footer-bottom a {
      color: rgba(255, 255, 255, 0.55);
      transition: color var(--transition);
    }
    .beian-info a:hover,
    .footer-bottom a:hover {
      color: var(--accent);
    }
    /* Offcanvas */
    .offcanvas {
      background-color: var(--surface);
      border-left: 1px solid var(--border);
    }
    .offcanvas-header {
      border-bottom: 1px solid var(--border);
    }
    .offcanvas-title {
      font-weight: 700;
      color: var(--primary);
    }
    .offcanvas-body .mobile-nav-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .offcanvas-body .mobile-nav-links li a {
      display: block;
      padding: 12px 0;
      font-size: 16px;
      font-weight: 500;
      color: var(--text);
      border-bottom: 1px solid var(--border);
    }
    .offcanvas-body .mobile-nav-links li a:hover,
    .offcanvas-body .mobile-nav-links li a.active {
      color: var(--primary);
    }
    .mobile-cta-row {
      display: flex;
      gap: 10px;
      margin-top: 20px;
    }
    /* Responsive */
    @media (max-width: 1199px) {
      .navbar-nav-links li a {
        padding: 8px 9px;
        font-size: 13.5px;
      }
      .navbar-cta .btn {
        padding: 8px 14px;
        font-size: 13px;
      }
    }
    @media (max-width: 991px) {
      .navbar-nav-links {
        display: none;
      }
      .navbar-cta {
        display: none;
      }
      .site-navbar {
        padding: 0 16px;
      }
      .hero-section {
        min-height: 460px;
        padding: 60px 0;
      }
      .brand-intro-wrapper {
        grid-template-columns: 1fr;
      }
      .service-matrix-row {
        grid-template-columns: 1fr 1fr;
      }
      .form-wrapper {
        grid-template-columns: 1fr;
      }
      .faq-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .stats-bar-wrapper {
        grid-template-columns: 1fr 1fr;
      }
      .hero-stat-row {
        grid-template-columns: 1fr 1fr 1fr;
      }
    }
    @media (max-width: 767px) {
      .section {
        padding-top: var(--section-gap-mobile);
        padding-bottom: var(--section-gap-mobile);
      }
      .service-matrix-row {
        grid-template-columns: 1fr;
      }
      .hero-section h1 {
        font-size: 30px;
      }
      .hero-card {
        padding: 20px;
      }
      .news-item {
        flex-direction: column;
        gap: 12px;
      }
      .news-date {
        width: 60px;
        height: 60px;
      }
      .news-date .day {
        font-size: 20px;
      }
      .timeline-wrapper {
        padding-left: 24px;
      }
      .timeline-item::before {
        left: -19px;
        width: 10px;
        height: 10px;
      }
      .timeline-wrapper::before {
        left: 8px;
      }
      .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
      .form-card {
        padding: 24px;
      }
      .stats-bar-wrapper {
        grid-template-columns: 1fr;
        gap: 14px;
      }
    }
    @media (max-width: 520px) {
      .hero-section {
        min-height: 420px;
        padding: 48px 0;
      }
      .hero-section h1 {
        font-size: 26px;
      }
      .hero-meta-row {
        gap: 12px;
      }
      .hero-stat-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }
      .section-title {
        font-size: 22px;
      }
      .content-card {
        padding: 20px;
      }
    }
    .d-lg-none-custom {
      display: none;
    }
    @media (max-width: 991px) {
      .d-lg-none-custom {
        display: inline-block;
      }
    }