/* roulang page: index */
:root {
            --primary: #1A3A5C;
            --primary-light: #234B6E;
            --primary-dark: #0F253D;
            --accent: #F05A28;
            --accent-light: #F47B52;
            --accent-dark: #C9461A;
            --bg: #F8F9FA;
            --bg-white: #FFFFFF;
            --text: #333333;
            --text-light: #6C757D;
            --text-muted: #8A939B;
            --border: #DEE2E6;
            --divider: #E9ECEF;
            --success: #28A745;
            --danger: #DC3545;
            --warning: #FFC107;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
            --transition: 0.2s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --section-padding: 80px;
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--primary-dark);
            margin-top: 0;
            line-height: 1.35;
        }
        h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 0.5em;
        }
        h2 {
            font-size: 2rem;
            font-weight: 600;
            margin-bottom: 0.5em;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.4em;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.35em;
        }
        p {
            margin-bottom: 1.2em;
            line-height: 1.8;
        }
        .text-small {
            font-size: 0.875rem;
            line-height: 1.6;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-wrap a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.35rem;
            text-decoration: none;
            white-space: nowrap;
        }
        .logo-wrap a:hover {
            color: var(--accent);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-primary {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
            height: 100%;
        }
        .nav-primary>li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }
        .nav-primary>li>a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 18px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }
        .nav-primary>li>a:hover,
        .nav-primary>li>a:focus {
            color: var(--accent);
            border-bottom-color: var(--accent);
            background: transparent;
        }
        .nav-primary>li.active>a {
            color: var(--accent);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }
        .nav-primary>li.has-mega>a::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: 6px;
            font-size: 0.75rem;
            transition: transform var(--transition);
        }
        .nav-primary>li.has-mega:hover>a::after {
            transform: rotate(180deg);
        }

        /* Mega Menu Panel */
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 820px;
            max-width: 95vw;
            background: var(--bg-white);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 28px 24px 20px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 24px;
            border: 1px solid var(--divider);
            border-top: 3px solid var(--accent);
        }
        .nav-primary>li.has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .mega-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px 16px;
        }
        .mega-links a {
            display: block;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition);
            text-decoration: none;
        }
        .mega-links a:hover {
            background: #fef5f1;
            color: var(--accent);
        }
        .mega-featured {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .mega-featured img {
            border-radius: var(--radius-sm);
            width: 100%;
            height: 140px;
            object-fit: cover;
        }
        .mega-featured h4 {
            font-size: 0.95rem;
            margin: 0;
            color: var(--primary-dark);
        }
        .mega-featured p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }
        .mega-cta {
            display: block;
            text-align: center;
            padding: 10px 16px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            transition: background var(--transition);
            margin-top: auto;
        }
        .mega-cta:hover {
            background: var(--accent-dark);
            color: #fff;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-white);
            z-index: 998;
            overflow-y: auto;
            padding: 20px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav-overlay.open {
            display: flex;
        }
        .mobile-nav-overlay a {
            display: block;
            padding: 14px 16px;
            color: var(--text);
            font-weight: 500;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            text-decoration: none;
            border-left: 3px solid transparent;
            transition: all var(--transition);
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a:focus {
            background: #fef5f1;
            color: var(--accent);
            border-left-color: var(--accent);
        }
        .mobile-nav-overlay .sub-links {
            padding-left: 20px;
        }
        .mobile-nav-overlay .sub-links a {
            font-size: 0.9rem;
            padding: 10px 14px;
        }

        /* ========== SECTIONS ========== */
        section {
            padding: var(--section-padding) 0;
        }
        section.bg-light {
            background: var(--bg-white);
        }
        section.bg-dark {
            background: var(--primary);
            color: #fff;
        }
        section.bg-dark h2,
        section.bg-dark h3,
        section.bg-dark h4 {
            color: #fff;
        }
        section.bg-dark p {
            color: rgba(255, 255, 255, 0.85);
        }
        section.bg-accent-soft {
            background: #fef5f1;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header h2 {
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background: var(--accent);
            margin-top: 10px;
            border-radius: 2px;
        }
        .section-header.center {
            text-align: center;
        }
        .section-header.center h2::after {
            margin: 10px auto 0;
        }
        .section-subtitle {
            color: var(--text-light);
            font-size: 1rem;
            max-width: 700px;
            margin-top: 8px;
        }
        .section-header.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== HERO (全宽矮横幅) ========== */
        .hero-section {
            padding: 0;
            background: #f0f3f6;
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .hero-bg-img {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 50px 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            width: 100%;
        }
        .hero-text h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .hero-text .hero-desc {
            font-size: 1.05rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-visual {
            display: flex;
            gap: 16px;
            justify-content: flex-end;
            flex-wrap: wrap;
        }
        .hero-stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            min-width: 110px;
            flex: 1;
            max-width: 150px;
        }
        .hero-stat-card .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
        }
        .hero-stat-card .stat-label {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 6px;
        }
        .hero-scroll-hint {
            position: absolute;
            bottom: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1;
            animation: bounceDown 2s infinite;
            color: var(--text-light);
            font-size: 1.2rem;
            cursor: pointer;
        }
        @keyframes bounceDown {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(8px);
            }
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            border: 2px solid transparent;
            text-align: center;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 7px 14px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            transition: all var(--transition);
            border: 1px solid var(--divider);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .card-img-top {
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
            margin: -24px -24px 16px;
            width: calc(100% + 48px);
            height: 180px;
            object-fit: cover;
        }
        .card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .card p {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .card .card-link {
            font-weight: 600;
            color: var(--accent);
            font-size: 0.9rem;
        }
        .card .card-link:hover {
            color: var(--accent-dark);
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #fef5f1;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.3rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }

        /* ========== GRID LAYOUTS ========== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: center;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .grid-asymmetric {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 30px;
        }
        .grid-asymmetric-reverse {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 30px;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .brand-intro-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .brand-intro-img img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .brand-intro-text h2 {
            margin-bottom: 16px;
        }
        .brand-intro-text p {
            color: var(--text-light);
            line-height: 1.9;
            font-size: 1rem;
        }

        /* ========== NEWS LIST ========== */
        .news-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 30px;
        }
        .news-list-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--divider);
            align-items: flex-start;
        }
        .news-list-item:first-child {
            padding-top: 0;
        }
        .news-list-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .news-date {
            flex-shrink: 0;
            text-align: center;
            background: #fef5f1;
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            min-width: 60px;
        }
        .news-date .day {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
        }
        .news-date .month {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-top: 2px;
        }
        .news-info h4 {
            font-size: 1rem;
            margin-bottom: 4px;
            font-weight: 600;
        }
        .news-info h4 a {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .news-info h4 a:hover {
            color: var(--accent);
        }
        .news-info p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .news-info .read-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
        }
        .news-sidebar {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--divider);
            height: fit-content;
        }
        .news-sidebar h4 {
            font-size: 1rem;
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .news-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .news-sidebar ul li {
            padding: 8px 0;
            border-bottom: 1px solid var(--divider);
        }
        .news-sidebar ul li:last-child {
            border-bottom: none;
        }
        .news-sidebar ul li a {
            color: var(--text);
            font-size: 0.9rem;
            transition: color var(--transition);
            text-decoration: none;
        }
        .news-sidebar ul li a:hover {
            color: var(--accent);
        }
        .news-sidebar .hot-tag {
            display: inline-block;
            background: #fef5f1;
            color: var(--accent);
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.78rem;
            margin: 3px 4px 3px 0;
            text-decoration: none;
            transition: all var(--transition);
        }
        .news-sidebar .hot-tag:hover {
            background: var(--accent);
            color: #fff;
        }

        /* ========== SCENARIO TIMELINE ========== */
        .scenario-timeline {
            position: relative;
            padding-left: 40px;
        }
        .scenario-timeline::before {
            content: '';
            position: absolute;
            left: 15px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--divider);
            border-radius: 2px;
        }
        .scenario-item {
            position: relative;
            margin-bottom: 32px;
            padding-left: 20px;
        }
        .scenario-item:last-child {
            margin-bottom: 0;
        }
        .scenario-item::before {
            content: '';
            position: absolute;
            left: -31px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--accent);
            border-radius: 50%;
            border: 3px solid #fff;
            box-shadow: 0 0 0 3px var(--accent);
            z-index: 1;
        }
        .scenario-item h4 {
            font-size: 1.1rem;
            margin-bottom: 6px;
            color: var(--primary-dark);
        }
        .scenario-item p {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== CASE STUDY ========== */
        .case-row {
            display: grid;
            grid-template-columns: 2fr 3fr;
            gap: 30px;
            align-items: center;
            margin-bottom: 32px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--divider);
        }
        .case-row:nth-child(even) {
            grid-template-columns: 3fr 2fr;
        }
        .case-row:nth-child(even) .case-img-wrap {
            order: 2;
        }
        .case-row:nth-child(even) .case-text {
            order: 1;
        }
        .case-img-wrap {
            height: 260px;
            overflow: hidden;
        }
        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-text {
            padding: 24px 28px;
        }
        .case-text h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .case-text p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .case-text .case-quote {
            font-style: italic;
            color: var(--accent);
            font-size: 0.95rem;
            border-left: 3px solid var(--accent);
            padding-left: 14px;
            margin: 10px 0;
        }

        /* ========== PRICING TABLE ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .pricing-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px 20px;
            text-align: center;
            border: 2px solid var(--divider);
            transition: all var(--transition);
            position: relative;
        }
        .pricing-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .pricing-card.featured {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            background: #fffdfb;
        }
        .pricing-card .pricing-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            white-space: nowrap;
        }
        .pricing-card .price {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            margin: 10px 0 4px;
        }
        .pricing-card .price-unit {
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .pricing-card ul {
            list-style: none;
            margin: 16px 0;
            padding: 0;
            text-align: left;
        }
        .pricing-card ul li {
            padding: 6px 0;
            font-size: 0.85rem;
            color: var(--text-light);
            border-bottom: 1px solid var(--divider);
        }
        .pricing-card ul li:last-child {
            border-bottom: none;
        }
        .pricing-card ul li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--success);
            margin-right: 8px;
            font-size: 0.75rem;
        }

        /* ========== MEMBERSHIP ========== */
        .membership-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .membership-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--divider);
            transition: all var(--transition);
        }
        .membership-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .membership-card .mem-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #fef5f1;
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.5rem;
        }
        .membership-card h4 {
            font-size: 1.1rem;
            margin-bottom: 6px;
        }
        .membership-card p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ========== RANKING TABLE ========== */
        .ranking-table-wrap {
            overflow-x: auto;
        }
        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .ranking-table thead th {
            background: var(--primary);
            color: #fff;
            padding: 14px 16px;
            font-weight: 600;
            font-size: 0.9rem;
            text-align: left;
            white-space: nowrap;
        }
        .ranking-table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--divider);
            font-size: 0.9rem;
            vertical-align: middle;
        }
        .ranking-table tbody tr:hover {
            background: #fef5f1;
        }
        .rank-badge {
            display: inline-block;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            text-align: center;
            line-height: 28px;
            font-weight: 700;
            font-size: 0.85rem;
            color: #fff;
        }
        .rank-1 {
            background: #FFD700;
            color: #333;
        }
        .rank-2 {
            background: #C0C0C0;
            color: #333;
        }
        .rank-3 {
            background: #CD7F32;
            color: #fff;
        }
        .rank-other {
            background: #e9ecef;
            color: #666;
        }
        .trend-up {
            color: var(--success);
        }
        .trend-down {
            color: var(--danger);
        }

        /* ========== TOPIC TAGS ========== */
        .topic-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .topic-tag {
            display: inline-block;
            padding: 10px 20px;
            background: var(--bg-white);
            border: 1px solid var(--divider);
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text);
            text-decoration: none;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .topic-tag:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: #fef5f1;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .topic-tag.large {
            font-size: 1.1rem;
            padding: 12px 26px;
            font-weight: 600;
        }

        /* ========== FORM ========== */
        .form-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--divider);
            max-width: 700px;
            margin: 0 auto;
        }
        .form-card input,
        .form-card textarea,
        .form-card select {
            width: 100%;
            padding: 11px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            transition: border-color var(--transition);
            background: #fafbfc;
            font-family: var(--font-stack);
        }
        .form-card input:focus,
        .form-card textarea:focus,
        .form-card select:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(240, 90, 40, 0.1);
            background: #fff;
        }
        .form-card label {
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 4px;
            display: block;
            color: var(--text);
        }
        .form-card .form-group {
            margin-bottom: 18px;
        }
        .form-card textarea {
            min-height: 120px;
            resize: vertical;
        }

        /* ========== FAQ ACCORDION ========== */
        .accordion-faq .accordion-item {
            border: 1px solid var(--divider);
            border-radius: var(--radius-sm);
            margin-bottom: 8px;
            overflow: hidden;
            background: var(--bg-white);
        }
        .accordion-faq .accordion-title {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            background: #fafbfc;
            border-left: 3px solid var(--accent);
            transition: all var(--transition);
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }
        .accordion-faq .accordion-title:hover {
            background: #fef5f1;
        }
        .accordion-faq .accordion-title::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            transition: transform var(--transition);
            color: var(--accent);
        }
        .accordion-faq .accordion-item.open .accordion-title::after {
            transform: rotate(180deg);
        }
        .accordion-faq .accordion-content {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }
        .accordion-faq .accordion-item.open .accordion-content {
            padding: 16px 20px;
            max-height: 400px;
        }
        .accordion-faq .accordion-content p {
            margin: 0;
            color: var(--text-light);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary);
            text-align: center;
            padding: 60px 20px;
        }
        .cta-section h2 {
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1rem;
            margin-bottom: 24px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0F253D;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 0;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 30px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px 36px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 14px;
            font-weight: 600;
        }
        .footer-col p {
            font-size: 0.85rem;
            line-height: 1.7;
            margin-bottom: 8px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-social {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
            transition: all var(--transition);
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            max-width: var(--container-max);
            margin: 0 auto;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            margin: 0 6px;
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }
        .footer-logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --section-padding: 50px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .membership-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-intro-img img {
                height: 260px;
            }
            .hero-content {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .hero-text .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual {
                justify-content: center;
            }
            .hero-stat-card {
                max-width: 130px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .grid-asymmetric,
            .grid-asymmetric-reverse {
                grid-template-columns: 1fr;
            }
            .case-row,
            .case-row:nth-child(even) {
                grid-template-columns: 1fr;
            }
            .case-row:nth-child(even) .case-img-wrap {
                order: -1;
            }
            .case-img-wrap {
                height: 200px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .mega-panel {
                width: 95vw;
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .mega-featured {
                display: none;
            }
            .mega-links {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 36px;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .nav-primary {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .grid-3,
            .grid-4,
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }
            .membership-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }
            .hero-section {
                min-height: 340px;
            }
            .hero-content {
                padding: 30px 16px;
            }
            .hero-stat-card {
                max-width: 100px;
                padding: 14px 10px;
            }
            .hero-stat-card .stat-num {
                font-size: 1.5rem;
            }
            .section-header {
                margin-bottom: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .scenario-timeline {
                padding-left: 28px;
            }
            .scenario-timeline::before {
                left: 10px;
            }
            .scenario-item::before {
                left: -24px;
                width: 10px;
                height: 10px;
            }
            .ranking-table thead th,
            .ranking-table tbody td {
                padding: 8px 10px;
                font-size: 0.78rem;
            }
            .form-card {
                padding: 20px;
            }
            .mega-panel {
                width: 100%;
                left: 0;
                transform: none;
                border-radius: 0;
                box-shadow: var(--shadow-md);
            }
            .nav-primary>li.has-mega:hover .mega-panel {
                transform: none;
            }
        }

        @media (max-width: 520px) {
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.25rem;
            }
            .hero-section {
                min-height: 300px;
            }
            .hero-content {
                padding: 24px 12px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .hero-buttons .btn {
                width: 100%;
                max-width: 260px;
            }
            .hero-visual {
                gap: 8px;
            }
            .hero-stat-card {
                min-width: 70px;
                max-width: 85px;
                padding: 10px 8px;
            }
            .hero-stat-card .stat-num {
                font-size: 1.2rem;
            }
            .hero-stat-card .stat-label {
                font-size: 0.7rem;
            }
            section {
                padding: 28px 0;
            }
            .card {
                padding: 16px;
            }
            .card-img-top {
                margin: -16px -16px 12px;
                width: calc(100% + 32px);
                height: 140px;
            }
            .btn {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .btn-lg {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .topic-tag {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .topic-tag.large {
                font-size: 0.9rem;
                padding: 9px 18px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1A3A5C;
            --primary-light: #234B6E;
            --primary-dark: #0F253D;
            --accent: #F05A28;
            --accent-light: #F47B52;
            --accent-dark: #C9461A;
            --bg: #F8F9FA;
            --bg-white: #FFFFFF;
            --text: #333333;
            --text-light: #6C757D;
            --text-muted: #8A939B;
            --border: #DEE2E6;
            --divider: #E9ECEF;
            --success: #28A745;
            --danger: #DC3545;
            --warning: #FFC107;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
            --transition: 0.2s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --section-padding: 80px;
            --container-max: 1200px;
        }

        @media (max-width: 1024px) {
            :root {
                --section-padding: 50px;
            }
        }
        @media (max-width: 640px) {
            :root {
                --section-padding: 36px;
            }
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
        }
        .text-small {
            font-size: 0.875rem;
            line-height: 1.6;
        }
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-wrap a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.35rem;
            text-decoration: none;
            white-space: nowrap;
        }
        .logo-wrap a:hover {
            color: var(--accent);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-primary {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
            height: 100%;
        }
        .nav-primary>li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }
        .nav-primary>li>a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 18px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }
        .nav-primary>li>a:hover,
        .nav-primary>li>a:focus {
            color: var(--accent);
            border-bottom-color: var(--accent);
            background: transparent;
        }
        .nav-primary>li.active>a {
            color: var(--accent);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }
        .nav-primary>li.has-mega>a::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: 6px;
            font-size: 0.75rem;
            transition: transform var(--transition);
        }
        .nav-primary>li.has-mega:hover>a::after {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 820px;
            max-width: 95vw;
            background: var(--bg-white);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 28px 24px 20px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 24px;
            border: 1px solid var(--divider);
        }
        .nav-primary>li.has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .mega-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px 16px;
            align-content: start;
        }
        .mega-links a {
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .mega-links a:hover {
            background: var(--bg);
            color: var(--accent);
        }
        .mega-featured {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: center;
        }
        .mega-featured img {
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            width: 100%;
            height: 140px;
            object-fit: cover;
        }
        .mega-featured h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--primary);
        }
        .mega-featured p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .mega-cta {
            display: inline-block;
            padding: 6px 18px;
            background: var(--accent);
            color: #fff !important;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition);
        }
        .mega-cta:hover {
            background: var(--accent-dark);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
        }
        @media (max-width: 1024px) {
            .mobile-menu-toggle {
                display: block;
            }
            .nav-primary {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                height: auto;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--divider);
                padding: 0;
                z-index: 998;
            }
            .nav-primary.open {
                display: flex;
            }
            .nav-primary>li {
                height: auto;
                width: 100%;
                border-bottom: 1px solid var(--divider);
            }
            .nav-primary>li>a {
                padding: 14px 20px;
                border-bottom: none;
                width: 100%;
            }
            .nav-primary>li.active>a {
                border-bottom: none;
                background: #fef5f1;
            }
            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                max-width: 100%;
                box-shadow: none;
                border-radius: 0;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                display: none;
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 12px 16px;
                border: none;
                background: #fafafa;
            }
            .nav-primary>li.has-mega.open-mega .mega-panel {
                display: grid;
            }
            .mega-links {
                grid-template-columns: repeat(2, 1fr);
            }
            .mega-featured {
                display: none;
            }
            .nav-primary>li.has-mega>a::after {
                margin-left: auto;
            }
        }
        @media (max-width: 640px) {
            .mega-links {
                grid-template-columns: 1fr;
            }
            .header-inner {
                height: 56px;
            }
            .logo-wrap a {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            padding: 12px 0;
        }
        .breadcrumb-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .breadcrumb-inner a {
            color: var(--text-light);
            text-decoration: none;
        }
        .breadcrumb-inner a:hover {
            color: var(--accent);
        }
        .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .breadcrumb-current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== CATEGORY HEADER ========== */
        .category-header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 48px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .category-header::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .category-header::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: 10%;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .category-header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }
        .category-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
            line-height: 1.3;
        }
        .category-header .cat-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 700px;
            line-height: 1.7;
        }
        .category-header .cat-stats {
            display: flex;
            gap: 32px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .cat-stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }
        .cat-stat-item i {
            color: var(--accent-light);
            font-size: 1rem;
        }
        .cat-stat-num {
            font-weight: 700;
            font-size: 1.3rem;
            color: #fff;
        }
        @media (max-width: 640px) {
            .category-header {
                padding: 32px 0;
            }
            .category-header h1 {
                font-size: 1.6rem;
            }
            .category-header .cat-desc {
                font-size: 0.9rem;
            }
            .cat-stats {
                gap: 16px;
            }
        }

        /* ========== MAIN CONTENT LAYOUT ========== */
        .main-content-area {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 36px 20px;
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }
        @media (max-width: 1024px) {
            .main-content-area {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* ========== ARTICLE LIST ========== */
        .article-list {}
        .article-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin-bottom: 20px;
            display: flex;
            gap: 20px;
            padding: 20px;
            transition: all var(--transition);
            border: 1px solid transparent;
            overflow: hidden;
        }
        .article-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--divider);
            transform: translateY(-1px);
        }
        .article-card-img {
            flex-shrink: 0;
            width: 200px;
            height: 140px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            position: relative;
        }
        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .article-card:hover .article-card-img img {
            transform: scale(1.04);
        }
        .article-card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }
        .article-card-date {
            display: flex;
            flex-direction: column;
            align-items: center;
            flex-shrink: 0;
            width: 56px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 8px 4px;
            text-align: center;
            line-height: 1.2;
        }
        .article-card-date .date-day {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent);
        }
        .article-card-date .date-month {
            font-size: 0.75rem;
            color: var(--text-light);
        }
        .article-card-date .date-year {
            font-size: 0.7rem;
            color: var(--text-muted);
        }
        .article-card-title {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-title a {
            color: var(--primary);
            text-decoration: none;
        }
        .article-card-title a:hover {
            color: var(--accent);
        }
        .article-card-summary {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .article-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .article-card-tag {
            display: inline-block;
            background: #fef0ea;
            color: var(--accent);
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 500;
        }
        .read-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
            align-self: flex-start;
        }
        .read-more-btn:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            text-decoration: none;
        }
        .read-more-btn i {
            font-size: 0.7rem;
            transition: transform var(--transition);
        }
        .read-more-btn:hover i {
            transform: translateX(3px);
        }
        @media (max-width: 768px) {
            .article-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .article-card-img {
                width: 100%;
                height: 180px;
            }
            .article-card-date {
                flex-direction: row;
                width: auto;
                gap: 6px;
                padding: 4px 10px;
                align-items: baseline;
                justify-content: center;
            }
            .article-card-date .date-day {
                font-size: 1.1rem;
            }
            .article-card-date .date-month {
                font-size: 0.8rem;
            }
            .article-card-date .date-year {
                font-size: 0.8rem;
            }
        }

        /* ========== SIDEBAR ========== */
        .sidebar {
            position: sticky;
            top: 84px;
        }
        @media (max-width: 1024px) {
            .sidebar {
                position: static;
            }
        }
        .sidebar-widget {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            margin-bottom: 20px;
            border: 1px solid var(--divider);
        }
        .sidebar-widget h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
            display: inline-block;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            display: inline-block;
            padding: 6px 14px;
            background: var(--bg);
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .tag-cloud a:hover {
            background: #fef0ea;
            color: var(--accent);
            border-color: var(--accent-light);
        }
        .sidebar-post-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-post-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--divider);
        }
        .sidebar-post-list li:last-child {
            border-bottom: none;
        }
        .sidebar-post-list a {
            font-size: 0.9rem;
            color: var(--text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition);
        }
        .sidebar-post-list a:hover {
            color: var(--accent);
        }
        .sidebar-post-list .sp-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: block;
            margin-top: 4px;
        }
        .sidebar-cta-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-md);
            padding: 22px;
            color: #fff;
            text-align: center;
            margin-bottom: 20px;
        }
        .sidebar-cta-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #fff;
            border: none;
        }
        .sidebar-cta-card p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 14px;
            line-height: 1.5;
        }
        .sidebar-cta-card .btn-cta-sm {
            display: inline-block;
            padding: 8px 20px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            text-decoration: none;
        }
        .sidebar-cta-card .btn-cta-sm:hover {
            background: var(--accent-dark);
            color: #fff;
        }

        /* ========== NEWSLETTER CTA SECTION ========== */
        .newsletter-section {
            background: var(--bg-white);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
            padding: 48px 0;
        }
        .newsletter-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .newsletter-text {
            flex: 1;
            min-width: 280px;
        }
        .newsletter-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .newsletter-text p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .newsletter-form-wrap {
            flex: 1;
            min-width: 300px;
            display: flex;
            gap: 10px;
        }
        .newsletter-form-wrap input {
            flex: 1;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            outline: none;
            transition: border-color var(--transition);
        }
        .newsletter-form-wrap input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(240, 90, 40, 0.08);
        }
        .newsletter-form-wrap button {
            padding: 12px 24px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .newsletter-form-wrap button:hover {
            background: var(--accent-dark);
        }
        @media (max-width: 640px) {
            .newsletter-inner {
                flex-direction: column;
                gap: 20px;
            }
            .newsletter-form-wrap {
                flex-direction: column;
                width: 100%;
            }
            .newsletter-form-wrap button {
                width: 100%;
            }
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            padding: var(--section-padding) 0;
            background: var(--bg);
        }
        .faq-inner {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .faq-inner h2 {
            text-align: center;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 32px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin-bottom: 12px;
            overflow: hidden;
            border-left: 3px solid transparent;
            transition: all var(--transition);
        }
        .faq-item.active {
            border-left-color: var(--accent);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question i {
            font-size: 0.8rem;
            transition: transform var(--transition);
            color: var(--text-muted);
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            padding: 0 20px 16px;
            max-height: 300px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 20px;
            margin-top: 0;
        }
        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 14px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--accent);
            display: inline-block;
        }
        .footer-logo-text {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-col p {
            font-size: 0.85rem;
            line-height: 1.7;
            margin-bottom: 8px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 16px 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 28px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== PAGINATION ========== */
        .pagination-row {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .pagination-row a,
        .pagination-row span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition);
            border: 1px solid var(--border);
            background: var(--bg-white);
            color: var(--text);
            text-decoration: none;
        }
        .pagination-row a:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .pagination-row .current {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }
        .pagination-row .disabled {
            color: var(--text-muted);
            pointer-events: none;
            opacity: 0.5;
        }

        /* Utility */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

/* roulang page: category3 */
:root {
            --primary: #1A3A5C;
            --primary-light: #234B6E;
            --primary-dark: #0F253D;
            --accent: #F05A28;
            --accent-light: #F47B52;
            --accent-dark: #C9461A;
            --bg: #F8F9FA;
            --bg-white: #FFFFFF;
            --text: #333333;
            --text-light: #6C757D;
            --text-muted: #8A939B;
            --border: #DEE2E6;
            --divider: #E9ECEF;
            --success: #28A745;
            --danger: #DC3545;
            --warning: #FFC107;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
            --transition: 0.2s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --section-padding: 80px;
            --container-max: 1200px;
        }

        @media (max-width: 1024px) {
            :root {
                --section-padding: 50px;
            }
        }
        @media (max-width: 640px) {
            :root {
                --section-padding: 36px;
            }
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
        }
        .text-small {
            font-size: 0.875rem;
            line-height: 1.6;
        }
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-wrap a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.35rem;
            text-decoration: none;
            white-space: nowrap;
        }
        .logo-wrap a:hover {
            color: var(--accent);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-primary {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
            height: 100%;
        }
        .nav-primary>li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }
        .nav-primary>li>a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 18px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }
        .nav-primary>li>a:hover,
        .nav-primary>li>a:focus {
            color: var(--accent);
            border-bottom-color: var(--accent);
            background: transparent;
        }
        .nav-primary>li.active>a {
            color: var(--accent);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }
        .nav-primary>li.has-mega>a::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: 6px;
            font-size: 0.75rem;
            transition: transform var(--transition);
        }
        .nav-primary>li.has-mega:hover>a::after {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 820px;
            max-width: 95vw;
            background: var(--bg-white);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 28px 24px 20px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 24px;
            border: 1px solid var(--divider);
            border-top: none;
        }
        .nav-primary>li.has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .mega-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px 16px;
            align-content: start;
        }
        .mega-links a {
            display: block;
            padding: 8px 12px;
            color: var(--text);
            font-size: 0.9rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .mega-links a:hover,
        .mega-links a.mega-active {
            background: #fef5f1;
            color: var(--accent);
            font-weight: 600;
        }
        .mega-featured {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: center;
        }
        .mega-featured img {
            border-radius: var(--radius-sm);
            width: 100%;
            height: 140px;
            object-fit: cover;
            margin-bottom: 12px;
        }
        .mega-featured h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }
        .mega-featured p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .mega-cta {
            display: inline-block;
            padding: 6px 18px;
            background: var(--accent);
            color: #fff !important;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            transition: background var(--transition);
        }
        .mega-cta:hover {
            background: var(--accent-dark);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            padding: 12px 0;
        }
        .breadcrumb-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 4px;
            align-items: center;
            font-size: 0.875rem;
            color: var(--text-light);
        }
        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .breadcrumb-list li+li::before {
            content: "/";
            margin-right: 4px;
            color: var(--text-muted);
        }
        .breadcrumb-list a {
            color: var(--text-light);
        }
        .breadcrumb-list a:hover {
            color: var(--accent);
        }
        .breadcrumb-list .current {
            color: var(--text);
            font-weight: 600;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 58, 92, 0.82) 0%, rgba(15, 37, 61, 0.75) 100%);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            max-width: 700px;
        }
        .page-banner-content h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
            line-height: 1.3;
        }
        .page-banner-content p {
            font-size: 1.1rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 0;
        }
        .page-banner-stats {
            display: flex;
            gap: 32px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .page-banner-stat {
            text-align: center;
        }
        .page-banner-stat .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-light);
        }
        .page-banner-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 2px;
        }

        /* ========== SECTION STYLES ========== */
        .section-pad {
            padding: var(--section-padding) 0;
        }
        .section-pad-top {
            padding-top: var(--section-padding);
        }
        .section-pad-bottom {
            padding-bottom: var(--section-padding);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
            text-align: center;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            text-align: center;
            max-width: 650px;
            margin: 0 auto 40px;
            line-height: 1.7;
        }
        .section-header-left {
            text-align: left;
            margin-bottom: 32px;
        }
        .section-header-left .section-title {
            text-align: left;
            margin-bottom: 8px;
        }
        .section-header-left .section-subtitle {
            text-align: left;
            margin: 0 0 0 0;
        }

        /* ========== FILTER TAGS ========== */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 36px;
        }
        .filter-tag {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            border: 1.5px solid var(--border);
            background: var(--bg-white);
            color: var(--text);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover,
        .filter-tag.active {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        /* ========== COURSE CARD GRID ========== */
        .course-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .course-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .course-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .course-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .course-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .course-card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .course-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            white-space: nowrap;
        }
        .course-tag-level-beginner {
            background: #e8f5e9;
            color: #2e7d32;
        }
        .course-tag-level-intermediate {
            background: #fff3e0;
            color: #e65100;
        }
        .course-tag-level-advanced {
            background: #fce4ec;
            color: #c62828;
        }
        .course-tag-duration {
            background: #e3f2fd;
            color: #0d47a1;
        }
        .course-card-title {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .course-card-desc {
            font-size: 0.875rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }
        .course-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 14px;
            gap: 8px;
            flex-wrap: wrap;
        }
        .course-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .btn-course {
            display: inline-block;
            width: 100%;
            text-align: center;
            padding: 10px 0;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-course:hover {
            background: var(--accent-dark);
            color: #fff;
        }

        /* ========== FEATURES ROW ========== */
        .features-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-item {
            text-align: center;
            padding: 28px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .feature-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #fef5f1;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.4rem;
            color: var(--accent);
        }
        .feature-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }
        .feature-item p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== STEPS / PROCESS ========== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .step-item {
            text-align: center;
            position: relative;
            padding: 20px 16px;
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
        }
        .step-item h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
        }
        .steps-connector {
            display: none;
        }

        /* ========== COACH CARDS ========== */
        .coach-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .coach-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition);
        }
        .coach-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .coach-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }
        .coach-card-body {
            padding: 18px 14px;
        }
        .coach-card-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text);
        }
        .coach-card-body .coach-title {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 500;
            margin-bottom: 8px;
        }
        .coach-card-body p {
            font-size: 0.8rem;
            color: var(--text-light);
            line-height: 1.5;
            margin: 0;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            box-shadow: var(--shadow-sm);
            position: relative;
            border-left: 4px solid var(--accent);
        }
        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--accent);
            opacity: 0.3;
            position: absolute;
            top: 16px;
            right: 20px;
        }
        .testimonial-card p {
            font-size: 0.9rem;
            color: var(--text);
            line-height: 1.7;
            margin-bottom: 14px;
            font-style: italic;
        }
        .testimonial-author {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
        }
        .testimonial-role {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* ========== FAQ ACCORDION ========== */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--divider);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-question {
            width: 100%;
            padding: 18px 22px;
            background: var(--bg-white);
            border: none;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: all var(--transition);
            border-left: 3px solid transparent;
        }
        .faq-question:hover {
            background: #fef5f1;
            border-left-color: var(--accent);
        }
        .faq-question .faq-icon {
            transition: transform var(--transition);
            color: var(--accent);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question {
            border-left-color: var(--accent);
            background: #fef5f1;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px 22px;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary);
            padding: 60px 0;
            text-align: center;
            color: #fff;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }
        .btn-cta-large {
            display: inline-block;
            padding: 14px 40px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-cta-large:hover {
            background: var(--accent-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #111;
            color: #ccc;
            padding: 50px 0 0;
        }
        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col p,
        .footer-col li {
            font-size: 0.875rem;
            line-height: 1.7;
            margin-bottom: 6px;
            color: #aaa;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li a {
            color: #aaa;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 14px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #333;
            color: #ccc;
            transition: all var(--transition);
            font-size: 1rem;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 20px;
            border-top: 1px solid #333;
            margin-top: 36px;
            text-align: center;
            font-size: 0.8rem;
            color: #777;
        }
        .footer-bottom a {
            color: #999;
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }
        .footer-bottom p {
            margin: 4px 0;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .course-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .features-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .coach-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .page-banner-content h1 {
                font-size: 2rem;
            }
            .mega-panel {
                width: 95vw;
                grid-template-columns: 1fr;
            }
            .mega-featured {
                display: none;
            }
            .mega-links {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
            }
            .nav-primary {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                box-shadow: var(--shadow-md);
                border-top: 1px solid var(--divider);
                padding: 8px 0;
                z-index: 998;
            }
            .nav-primary.mobile-open {
                display: flex;
            }
            .nav-primary>li {
                width: 100%;
                height: auto;
            }
            .nav-primary>li>a {
                padding: 12px 20px;
                border-bottom: none;
                width: 100%;
            }
            .nav-primary>li.has-mega .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                max-width: 100%;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                box-shadow: none;
                border-radius: 0;
                padding: 8px 16px;
                display: none;
                grid-template-columns: 1fr;
                border: none;
            }
            .nav-primary>li.has-mega.mega-open .mega-panel {
                display: block;
            }
            .mega-links {
                grid-template-columns: 1fr 1fr;
            }
            .mega-featured {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .course-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .course-card-img {
                height: 180px;
            }
            .features-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .steps-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .coach-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .page-banner {
                padding: 50px 0;
                min-height: 240px;
            }
            .page-banner-content h1 {
                font-size: 1.6rem;
            }
            .page-banner-content p {
                font-size: 0.95rem;
            }
            .page-banner-stats {
                gap: 16px;
            }
            .page-banner-stat .stat-number {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .features-row {
                grid-template-columns: 1fr;
            }
            .coach-grid {
                grid-template-columns: 1fr;
            }
            .mega-links {
                grid-template-columns: 1fr;
            }
            .page-banner-stats {
                flex-direction: column;
                gap: 10px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1A3A5C;
            --primary-light: #234B6E;
            --primary-dark: #0F253D;
            --accent: #F05A28;
            --accent-light: #F47B52;
            --accent-dark: #C9461A;
            --bg: #F8F9FA;
            --bg-white: #FFFFFF;
            --text: #333333;
            --text-light: #6C757D;
            --text-muted: #8A939B;
            --border: #DEE2E6;
            --divider: #E9ECEF;
            --success: #28A745;
            --danger: #DC3545;
            --warning: #FFC107;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
            --transition: 0.2s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --section-padding: 60px;
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

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

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

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

        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
        }

        .text-small {
            font-size: 0.875rem;
            line-height: 1.6;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

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

        .logo-wrap a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.35rem;
            text-decoration: none;
            white-space: nowrap;
        }

        .logo-wrap a:hover {
            color: var(--accent);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
            height: 100%;
        }

        .nav-primary>li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }

        .nav-primary>li>a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 18px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }

        .nav-primary>li>a:hover,
        .nav-primary>li>a:focus {
            color: var(--accent);
            border-bottom-color: var(--accent);
            background: transparent;
        }

        .nav-primary>li.active>a {
            color: var(--accent);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }

        .nav-primary>li.has-mega>a::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: 6px;
            font-size: 0.75rem;
            transition: transform var(--transition);
        }

        .nav-primary>li.has-mega:hover>a::after {
            transform: rotate(180deg);
        }

        /* Mega Menu Panel */
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 820px;
            max-width: 95vw;
            background: var(--bg-white);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 28px 24px 20px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 24px;
            border: 1px solid var(--divider);
        }

        .nav-primary>li.has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }

        .mega-links {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 10px 16px;
            align-content: start;
        }

        .mega-links a {
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .mega-links a:hover {
            background: var(--bg);
            color: var(--accent);
        }

        .mega-links a.mega-active {
            color: var(--accent);
            font-weight: 600;
            background: #fef5f1;
        }

        .mega-featured {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .mega-featured img {
            border-radius: var(--radius-sm);
            width: 100%;
            height: 140px;
            object-fit: cover;
        }

        .mega-featured h4 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0;
            color: var(--primary);
        }

        .mega-featured p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }

        .mega-featured .mega-cta {
            display: inline-block;
            padding: 8px 16px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            text-align: center;
            text-decoration: none;
            transition: background var(--transition);
        }

        .mega-featured .mega-cta:hover {
            background: var(--accent-dark);
            color: #fff;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        .nav-toggle:hover {
            color: var(--accent);
        }

        @media (max-width: 1024px) {
            .nav-toggle {
                display: block;
            }

            .nav-primary {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                align-items: stretch;
                height: auto;
                box-shadow: var(--shadow-lg);
                border-bottom: 2px solid var(--divider);
                max-height: 80vh;
                overflow-y: auto;
            }

            .nav-primary.nav-open {
                display: flex;
            }

            .nav-primary>li {
                height: auto;
                border-bottom: 1px solid var(--divider);
            }

            .nav-primary>li>a {
                padding: 14px 20px;
                border-bottom: none;
                font-size: 1rem;
            }

            .nav-primary>li.active>a {
                border-bottom: none;
                border-left: 3px solid var(--accent);
                background: #fef5f1;
            }

            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                max-width: 100%;
                box-shadow: none;
                border-radius: 0;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                grid-template-columns: 1fr;
                padding: 12px 20px;
                display: none;
                border: none;
                border-top: 1px solid var(--divider);
            }

            .nav-primary>li.has-mega.mega-open .mega-panel {
                display: grid;
            }

            .mega-links {
                grid-template-columns: 1fr 1fr;
            }

            .mega-featured {
                display: none;
            }

            .nav-primary>li.has-mega>a {
                cursor: pointer;
            }

            .nav-primary>li.has-mega>a::after {
                content: "\f107";
            }
        }

        @media (max-width: 640px) {
            .header-inner {
                height: 56px;
            }

            .logo-wrap a {
                font-size: 1.15rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }

            .mega-links {
                grid-template-columns: 1fr;
            }

            .nav-primary {
                top: 56px;
            }
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            padding: 12px 0;
        }

        .breadcrumb-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }

        .breadcrumb-inner a {
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
        }

        .breadcrumb-inner a:hover {
            color: var(--accent);
        }

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

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

        /* ========== PAGE HERO ========== */
        .page-hero {
            background: linear-gradient(rgba(26, 58, 92, 0.78), rgba(15, 37, 61, 0.85)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            padding: 70px 0 80px;
            text-align: center;
            color: #fff;
            position: relative;
        }

        .page-hero .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .page-hero h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin: 0 0 14px;
            color: #fff;
            line-height: 1.3;
        }

        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.88);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .page-hero .hero-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-accent {
            display: inline-block;
            padding: 12px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-white {
            display: inline-block;
            padding: 12px 28px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            transition: all var(--transition);
            cursor: pointer;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 44px 0 50px;
            }

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

            .page-hero .hero-subtitle {
                font-size: 0.95rem;
                padding: 0 16px;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--section-padding) 0;
        }

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

        .section-title {
            text-align: center;
            margin-bottom: 36px;
        }

        .section-title h2 {
            font-size: 2rem;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 10px;
        }

        .section-title .title-line {
            width: 50px;
            height: 3px;
            background: var(--accent);
            margin: 0 auto 12px;
            border-radius: 2px;
        }

        .section-title p {
            color: var(--text-light);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section {
                padding: 36px 0;
            }

            .section-title h2 {
                font-size: 1.5rem;
            }
        }

        /* ========== EVENT GRID - LARGE IMAGE CARDS ========== */
        .event-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .event-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            position: relative;
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

        .event-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .event-card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 220px;
        }

        .event-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .event-card:hover .event-card-img-wrap img {
            transform: scale(1.06);
        }

        .event-card-img-wrap .event-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            z-index: 2;
            letter-spacing: 0.3px;
        }

        .event-card-img-wrap .event-tag.upcoming {
            background: var(--primary);
        }

        .event-card-img-wrap .event-tag.ongoing {
            background: var(--success);
        }

        .event-card-img-wrap .event-tag.featured {
            background: var(--warning);
            color: #333;
        }

        /* Hover overlay */
        .event-card-hover-info {
            position: absolute;
            inset: 0;
            background: rgba(26, 58, 92, 0.88);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 10px;
            opacity: 0;
            transition: opacity 0.3s ease;
            z-index: 3;
            padding: 20px;
            text-align: center;
            color: #fff;
        }

        .event-card:hover .event-card-hover-info {
            opacity: 1;
        }

        .event-card-hover-info .hover-date {
            font-size: 1.1rem;
            font-weight: 600;
            color: #fff;
        }

        .event-card-hover-info .hover-location {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.85);
        }

        .event-card-hover-info .hover-btn {
            display: inline-block;
            padding: 8px 20px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            margin-top: 6px;
            transition: background var(--transition);
        }

        .event-card-hover-info .hover-btn:hover {
            background: #fff;
            color: var(--accent);
        }

        .event-card-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .event-card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
            line-height: 1.4;
        }

        .event-card-body .event-meta {
            display: flex;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }

        .event-card-body .event-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .event-card-body .event-meta i {
            color: var(--accent);
            font-size: 0.75rem;
        }

        .event-card-body .event-desc {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
            flex: 1;
        }

        .event-card-body .event-link {
            display: inline-block;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            margin-top: auto;
            transition: color var(--transition);
        }

        .event-card-body .event-link:hover {
            color: var(--accent-dark);
        }

        .event-card-body .event-link i {
            margin-left: 4px;
            font-size: 0.75rem;
            transition: transform var(--transition);
        }

        .event-card-body .event-link:hover i {
            transform: translateX(3px);
        }

        @media (max-width: 1024px) {
            .event-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
        }

        @media (max-width: 640px) {
            .event-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .event-card-img-wrap {
                height: 180px;
            }
        }

        /* ========== COUNTDOWN SECTION ========== */
        .countdown-section {
            background: var(--primary);
            color: #fff;
            padding: 50px 0;
            text-align: center;
        }

        .countdown-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .countdown-inner h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: #fff;
        }

        .countdown-inner .countdown-subtitle {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 24px;
        }

        .countdown-timer {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .countdown-item {
            background: rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            min-width: 80px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .countdown-item .count-num {
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1;
            color: #fff;
        }

        .countdown-item .count-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
            letter-spacing: 1px;
        }

        .countdown-cta {
            margin-top: 24px;
        }

        @media (max-width: 640px) {
            .countdown-timer {
                gap: 10px;
            }

            .countdown-item {
                padding: 14px 16px;
                min-width: 60px;
            }

            .countdown-item .count-num {
                font-size: 1.8rem;
            }
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .process-step {
            text-align: center;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
        }

        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .process-step .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: var(--accent);
            color: #fff;
            border-radius: 50%;
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 14px;
        }

        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 8px;
        }

        .process-step p {
            font-size: 0.88rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            text-align: center;
        }

        .stat-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 16px;
            box-shadow: var(--shadow-sm);
            border-left: 3px solid var(--accent);
        }

        .stat-item .stat-num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        @media (max-width: 1024px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-item .stat-num {
                font-size: 1.6rem;
            }
        }

        /* ========== FAQ ACCORDION ========== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .faq-wrap .accordion {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .faq-wrap .accordion-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border-left: 3px solid transparent;
            transition: border-color var(--transition);
        }

        .faq-wrap .accordion-item.is-active {
            border-left-color: var(--accent);
            box-shadow: var(--shadow-md);
        }

        .faq-wrap .accordion-title {
            display: block;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary);
            cursor: pointer;
            text-decoration: none;
            position: relative;
            transition: color var(--transition);
            background: var(--bg-white);
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-wrap .accordion-title:hover {
            color: var(--accent);
        }

        .faq-wrap .accordion-title::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 0.75rem;
            color: var(--text-light);
            transition: transform var(--transition);
        }

        .faq-wrap .accordion-item.is-active .accordion-title::after {
            transform: translateY(-50%) rotate(180deg);
            color: var(--accent);
        }

        .faq-wrap .accordion-content {
            display: none;
            padding: 0 20px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.8;
            background: var(--bg-white);
        }

        .faq-wrap .accordion-item.is-active .accordion-content {
            display: block;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            padding: 60px 0;
            text-align: center;
        }

        .cta-inner {
            max-width: 700px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 12px;
            color: #fff;
        }

        .cta-inner p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 24px;
            line-height: 1.7;
        }

        .cta-inner .btn-accent-large {
            display: inline-block;
            padding: 14px 36px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.1rem;
            text-decoration: none;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }

        .cta-inner .btn-accent-large:hover {
            background: #fff;
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 0;
            }

            .cta-inner h2 {
                font-size: 1.5rem;
            }
        }

        /* ========== FILTER TAGS ========== */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            max-width: var(--container-max);
            margin: 0 auto 28px;
            padding: 0 20px;
        }

        .filter-tag {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            background: var(--bg-white);
            color: var(--text);
            border: 1px solid var(--border);
            text-decoration: none;
        }

        .filter-tag:hover,
        .filter-tag.active {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 30px;
        }

        .footer-col .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-col p {
            font-size: 0.88rem;
            line-height: 1.7;
            margin: 0 0 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--accent);
            display: inline-block;
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.88rem;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 10px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            color: #fff;
            font-size: 1rem;
            transition: all var(--transition);
            text-decoration: none;
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-bottom {
            max-width: var(--container-max);
            margin: 30px auto 0;
            padding: 18px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .site-footer {
                padding: 36px 0 0;
            }

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

/* roulang page: category5 */
:root {
            --primary: #1A3A5C;
            --primary-light: #234B6E;
            --primary-dark: #0F253D;
            --accent: #F05A28;
            --accent-light: #F47B52;
            --accent-dark: #C9461A;
            --bg: #F8F9FA;
            --bg-white: #FFFFFF;
            --text: #333333;
            --text-light: #6C757D;
            --text-muted: #8A939B;
            --border: #DEE2E6;
            --divider: #E9ECEF;
            --success: #28A745;
            --danger: #DC3545;
            --warning: #FFC107;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
            --transition: 0.2s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --section-padding: 80px;
            --container-max: 1200px;
        }

        @media screen and (max-width: 1024px) {
            :root {
                --section-padding: 50px;
            }
        }
        @media screen and (max-width: 640px) {
            :root {
                --section-padding: 36px;
            }
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
        }
        .text-small {
            font-size: 0.875rem;
            line-height: 1.6;
        }
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-wrap a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.35rem;
            text-decoration: none;
            white-space: nowrap;
        }
        .logo-wrap a:hover {
            color: var(--accent);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-primary {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
            height: 100%;
        }
        .nav-primary>li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }
        .nav-primary>li>a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 18px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }
        .nav-primary>li>a:hover,
        .nav-primary>li>a:focus {
            color: var(--accent);
            border-bottom-color: var(--accent);
            background: transparent;
        }
        .nav-primary>li.active>a {
            color: var(--accent);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }
        .nav-primary>li.has-mega>a::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: 6px;
            font-size: 0.75rem;
            transition: transform var(--transition);
        }
        .nav-primary>li.has-mega:hover>a::after {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 820px;
            max-width: 95vw;
            background: var(--bg-white);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 28px 24px 20px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 24px;
            border: 1px solid var(--divider);
        }
        .nav-primary>li.has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .mega-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px 16px;
            align-content: start;
        }
        .mega-links a {
            display: block;
            padding: 8px 12px;
            color: var(--text);
            font-size: 0.9rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .mega-links a:hover {
            background: var(--bg);
            color: var(--accent);
        }
        .mega-featured {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: center;
        }
        .mega-featured img {
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            width: 100%;
            height: 140px;
            object-fit: cover;
        }
        .mega-featured h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--primary);
        }
        .mega-featured p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .mega-cta {
            display: inline-block;
            padding: 6px 18px;
            background: var(--accent);
            color: #fff !important;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            transition: background var(--transition);
        }
        .mega-cta:hover {
            background: var(--accent-dark);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            padding: 12px 0;
        }
        .breadcrumb-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-light);
        }
        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-list li::after {
            content: "\f105";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .breadcrumb-list li:last-child::after {
            display: none;
        }
        .breadcrumb-list a {
            color: var(--text-light);
            transition: color var(--transition);
        }
        .breadcrumb-list a:hover {
            color: var(--accent);
        }
        .breadcrumb-list li:last-child {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            background: linear-gradient(rgba(26, 58, 92, 0.78), rgba(15, 37, 61, 0.85)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 70px 0 60px;
            text-align: center;
            color: #fff;
            position: relative;
        }
        .page-hero h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: #fff;
            line-height: 1.3;
        }
        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .page-hero .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .page-hero .stat-item {
            text-align: center;
        }
        .page-hero .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent);
            display: block;
        }
        .page-hero .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ========== SECTION TITLES ========== */
        .section-title {
            font-size: 2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            margin-bottom: 36px;
            line-height: 1.7;
            max-width: 700px;
        }

        /* ========== FEATURED LARGE CARD ========== */
        .featured-card-wrap {
            margin-bottom: 40px;
        }
        .featured-card-large {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1fr;
            transition: all var(--transition);
            border: 1px solid var(--divider);
        }
        .featured-card-large:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .featured-card-large .card-img-wrap {
            position: relative;
            overflow: hidden;
            min-height: 320px;
        }
        .featured-card-large .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .featured-card-large:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .featured-card-large .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            z-index: 2;
        }
        .featured-card-large .card-body {
            padding: 28px 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-card-large .card-body h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .featured-card-large .card-body p {
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
            font-size: 0.95rem;
        }
        .featured-card-large .card-meta {
            display: flex;
            gap: 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .featured-card-large .card-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .btn-accent {
            display: inline-block;
            padding: 10px 24px;
            background: var(--accent);
            color: #fff !important;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-align: center;
            align-self: flex-start;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            display: inline-block;
            padding: 10px 24px;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ========== MEMBER GRID ========== */
        .member-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .member-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 24px 18px;
            text-align: center;
            transition: all var(--transition);
            border: 1px solid var(--divider);
        }
        .member-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .member-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 14px;
            border: 3px solid var(--accent);
        }
        .member-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .member-card .member-role {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 500;
            margin-bottom: 8px;
        }
        .member-card .member-bio {
            font-size: 0.8rem;
            color: var(--text-light);
            line-height: 1.5;
        }
        .member-card .member-stats {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-top: 10px;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .member-card .member-stats span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== COMMUNITY FEED ========== */
        .feed-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .feed-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 20px 24px;
            margin-bottom: 14px;
            border: 1px solid var(--divider);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition);
        }
        .feed-item:hover {
            box-shadow: var(--shadow-md);
        }
        .feed-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            object-fit: cover;
            flex-shrink: 0;
        }
        .feed-content {
            flex: 1;
        }
        .feed-content h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .feed-content p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 8px;
        }
        .feed-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .feed-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== TOPIC TAGS ========== */
        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }
        .topic-tag {
            display: inline-block;
            padding: 6px 16px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .topic-tag:hover,
        .topic-tag.active-tag {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .topic-tag.active-tag {
            font-weight: 600;
        }

        /* ========== FAQ ACCORDION ========== */
        .faq-section {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--divider);
        }
        .accordion-item {
            border-bottom: 1px solid var(--divider);
        }
        .accordion-item:last-child {
            border-bottom: none;
        }
        .accordion-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            padding: 16px 0;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: color var(--transition);
            border-left: 3px solid transparent;
            padding-left: 14px;
            margin-left: -14px;
        }
        .accordion-title:hover {
            color: var(--accent);
        }
        .accordion-title.is-active {
            color: var(--accent);
            border-left-color: var(--accent);
        }
        .accordion-title::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.9rem;
            transition: transform var(--transition);
            color: var(--text-muted);
        }
        .accordion-title.is-active::after {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .accordion-content {
            padding: 0 0 16px 14px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.8;
            display: none;
        }
        .accordion-content.is-active {
            display: block;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-cta-white {
            display: inline-block;
            padding: 12px 32px;
            background: #fff;
            color: var(--primary) !important;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-cta-white:hover {
            background: var(--accent);
            color: #fff !important;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 0;
            margin-top: var(--section-padding);
        }
        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col p {
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            color: #fff;
            font-size: 1rem;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 20px;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 30px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }
        .footer-bottom p {
            margin-bottom: 4px;
        }

        /* ========== RESPONSIVE ========== */
        @media screen and (max-width: 1024px) {
            .featured-card-large {
                grid-template-columns: 1fr;
            }
            .featured-card-large .card-img-wrap {
                min-height: 220px;
            }
            .member-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .mega-panel {
                width: 95vw;
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 20px 16px;
            }
            .mega-links {
                grid-template-columns: repeat(2, 1fr);
            }
            .mega-featured {
                display: none;
            }
            .nav-primary>li>a {
                padding: 0 10px;
                font-size: 0.85rem;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
        }
        @media screen and (max-width: 768px) {
            .header-inner {
                height: 56px;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-primary {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                height: auto;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
                box-shadow: var(--shadow-md);
                z-index: 998;
                align-items: stretch;
            }
            .nav-primary.nav-open {
                max-height: 600px;
                overflow-y: auto;
            }
            .nav-primary>li {
                height: auto;
                border-bottom: 1px solid var(--divider);
            }
            .nav-primary>li>a {
                padding: 14px 20px;
                border-bottom: none;
                width: 100%;
            }
            .nav-primary>li.has-mega .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                max-width: 100%;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                box-shadow: none;
                border-radius: 0;
                border: none;
                display: none;
                padding: 10px 20px;
                grid-template-columns: 1fr;
            }
            .nav-primary>li.has-mega.mega-open .mega-panel {
                display: block;
            }
            .mega-links {
                grid-template-columns: 1fr 1fr;
            }
            .mega-featured {
                display: none;
            }
            .member-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feed-item {
                flex-direction: column;
            }
            .page-hero .hero-stats {
                gap: 20px;
            }
            .page-hero .stat-number {
                font-size: 1.6rem;
            }
            .cta-section {
                padding: 36px 24px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .faq-section {
                padding: 24px 16px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media screen and (max-width: 520px) {
            .member-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .member-card {
                padding: 16px 10px;
            }
            .member-avatar {
                width: 60px;
                height: 60px;
            }
            .featured-card-large .card-body {
                padding: 18px;
            }
            .featured-card-large .card-body h3 {
                font-size: 1.2rem;
            }
            .page-hero .hero-stats {
                flex-direction: column;
                gap: 10px;
            }
            .breadcrumb-list {
                font-size: 0.75rem;
            }
            .topic-tags {
                gap: 6px;
            }
            .topic-tag {
                padding: 4px 10px;
                font-size: 0.75rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1A3A5C;
            --primary-light: #234B6E;
            --primary-dark: #0F253D;
            --accent: #F05A28;
            --accent-light: #F47B52;
            --accent-dark: #C9461A;
            --bg: #F8F9FA;
            --bg-white: #FFFFFF;
            --text: #333333;
            --text-light: #6C757D;
            --text-muted: #8A939B;
            --border: #DEE2E6;
            --divider: #E9ECEF;
            --success: #28A745;
            --danger: #DC3545;
            --warning: #FFC107;
            --star-gold: #F5A623;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
            --transition: 0.2s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --section-padding: 80px;
            --container-max: 1200px;
        }

        @media (max-width: 1024px) {
            :root {
                --section-padding: 50px;
            }
        }
        @media (max-width: 640px) {
            :root {
                --section-padding: 36px;
            }
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
        }
        .text-small {
            font-size: 0.875rem;
            line-height: 1.6;
        }
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            position: relative;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-wrap a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.35rem;
            text-decoration: none;
            white-space: nowrap;
        }
        .logo-wrap a:hover {
            color: var(--accent);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-primary {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
            height: 100%;
        }
        .nav-primary>li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }
        .nav-primary>li>a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 18px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }
        .nav-primary>li>a:hover,
        .nav-primary>li>a:focus {
            color: var(--accent);
            border-bottom-color: var(--accent);
            background: transparent;
        }
        .nav-primary>li.active>a {
            color: var(--accent);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }
        .nav-primary>li.has-mega>a::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: 6px;
            font-size: 0.75rem;
            transition: transform var(--transition);
        }
        .nav-primary>li.has-mega:hover>a::after {
            transform: rotate(180deg);
        }
        .nav-primary>li.has-mega.active>a {
            color: var(--accent);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }

        /* Mega Menu Panel */
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 820px;
            max-width: 95vw;
            background: var(--bg-white);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 28px 24px 20px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 24px;
            border: 1px solid var(--divider);
        }
        .nav-primary>li.has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .mega-links {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6px 16px;
            align-content: start;
        }
        .mega-links a {
            display: block;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 0.9rem;
            transition: all var(--transition);
            text-decoration: none;
            font-weight: 500;
        }
        .mega-links a:hover {
            background: #fef5f1;
            color: var(--accent);
        }
        .mega-links a.mega-active {
            background: #fef5f1;
            color: var(--accent);
            font-weight: 600;
        }
        .mega-featured {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: center;
        }
        .mega-featured img {
            border-radius: var(--radius-sm);
            width: 100%;
            height: 140px;
            object-fit: cover;
            margin-bottom: 10px;
        }
        .mega-featured h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--primary);
        }
        .mega-featured p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin: 0 0 10px;
            line-height: 1.5;
        }
        .mega-cta {
            display: inline-block;
            padding: 6px 20px;
            background: var(--accent);
            color: #fff !important;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            transition: background var(--transition);
            text-decoration: none;
        }
        .mega-cta:hover {
            background: var(--accent-dark);
        }

        /* Mobile Nav Toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
            flex-direction: column;
            gap: 5px;
            align-items: center;
            justify-content: center;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            padding: 12px 0;
        }
        .breadcrumb-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .breadcrumb-inner a {
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        .breadcrumb-inner a:hover {
            color: var(--accent);
        }
        .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .breadcrumb-current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            background: linear-gradient(135deg, rgba(26, 58, 92, 0.88) 0%, rgba(15, 37, 61, 0.92) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 60px 0 50px;
            text-align: center;
            color: #fff;
            position: relative;
        }
        .page-banner h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin: 0 0 12px;
            color: #fff;
            letter-spacing: 0.02em;
        }
        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .page-banner .banner-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .page-banner .stat-item {
            text-align: center;
        }
        .page-banner .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }
        .page-banner .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 2px;
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--section-padding) 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            text-align: center;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            text-align: center;
            margin-bottom: 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        /* ========== REVIEW LIST ========== */
        .review-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
            max-width: 960px;
            margin: 0 auto;
        }
        .review-card {
            display: grid;
            grid-template-columns: 340px 1fr;
            gap: 28px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--divider);
        }
        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .review-card-img {
            position: relative;
            overflow: hidden;
            min-height: 260px;
        }
        .review-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .review-card:hover .review-card-img img {
            transform: scale(1.04);
        }
        .review-card-img .review-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            z-index: 2;
        }
        .review-card-body {
            padding: 24px 24px 24px 4px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .review-card-body h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 8px;
            line-height: 1.3;
        }
        .review-card-body .review-summary {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0 0 12px;
            flex-grow: 1;
        }
        .review-rating {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .review-rating .stars {
            display: flex;
            gap: 2px;
            color: var(--star-gold);
            font-size: 1.1rem;
        }
        .review-rating .stars .star-empty {
            color: #d5d5d5;
        }
        .review-rating .stars .star-half {
            position: relative;
            color: #d5d5d5;
        }
        .review-rating .stars .star-half::before {
            content: "\f005";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 0;
            width: 50%;
            overflow: hidden;
            color: var(--star-gold);
        }
        .review-rating .rating-num {
            font-weight: 700;
            color: var(--primary);
            font-size: 1.05rem;
        }
        .review-rating .rating-count {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .review-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }
        .review-tags .tag {
            display: inline-block;
            padding: 4px 12px;
            background: #fef5f1;
            color: var(--accent);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .review-tags .tag.tag-green {
            background: #edf7ee;
            color: var(--success);
        }
        .review-tags .tag.tag-blue {
            background: #eef4f9;
            color: var(--primary);
        }
        .review-pros-cons {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            margin-bottom: 14px;
            font-size: 0.85rem;
        }
        .review-pros-cons .pros,
        .review-pros-cons .cons {
            padding: 12px;
            border-radius: var(--radius-sm);
            line-height: 1.6;
        }
        .review-pros-cons .pros {
            background: #edf7ee;
        }
        .review-pros-cons .cons {
            background: #fef5f5;
        }
        .review-pros-cons .pros strong {
            color: var(--success);
        }
        .review-pros-cons .cons strong {
            color: var(--danger);
        }
        .review-pros-cons ul {
            margin: 4px 0 0 0;
            padding-left: 16px;
            list-style: disc;
        }
        .review-pros-cons ul li {
            margin-bottom: 2px;
        }
        .btn-review-detail {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            text-decoration: none;
            align-self: flex-start;
            border: none;
            cursor: pointer;
        }
        .btn-review-detail:hover {
            background: var(--accent);
            color: #fff;
        }
        .btn-review-detail i {
            font-size: 0.75rem;
        }

        /* ========== RATING GUIDE ========== */
        .rating-guide-section {
            background: var(--bg-white);
        }
        .rating-guide-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 960px;
            margin: 0 auto;
        }
        .rating-guide-item {
            text-align: center;
            padding: 28px 16px;
            border-radius: var(--radius-md);
            background: var(--bg);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .rating-guide-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .rating-guide-item .guide-icon {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .rating-guide-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 6px;
        }
        .rating-guide-item p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== EDITOR PICK ========== */
        .editor-pick-section {
            background: linear-gradient(180deg, #fefdfc 0%, var(--bg) 100%);
        }
        .editor-pick-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 32px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            max-width: 900px;
            margin: 0 auto;
            align-items: center;
            border: 1px solid var(--divider);
            transition: all var(--transition);
        }
        .editor-pick-card:hover {
            box-shadow: var(--shadow-md);
        }
        .editor-pick-card img {
            border-radius: var(--radius-md);
            width: 100%;
            height: 280px;
            object-fit: cover;
        }
        .editor-pick-card .pick-info h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 8px;
        }
        .editor-pick-card .pick-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .editor-pick-card .pick-desc {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            border: 1px solid var(--divider);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg);
            transition: all var(--transition);
        }
        .faq-item.active {
            border-left: 3px solid var(--accent);
            background: #fff;
        }
        .faq-question {
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            color: var(--primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1rem;
            user-select: none;
            transition: all var(--transition);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question i {
            font-size: 0.8rem;
            transition: transform var(--transition);
            color: var(--text-light);
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary);
            padding: 56px 0;
            text-align: center;
            color: #fff;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 10px;
            color: #fff;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 24px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            text-decoration: none;
            border: 2px solid var(--accent);
        }
        .btn-cta:hover {
            background: #fff;
            color: var(--accent);
            border-color: #fff;
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            background: transparent;
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            text-decoration: none;
            border: 2px solid rgba(255, 255, 255, 0.6);
            margin-left: 12px;
        }
        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0F253D;
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 0;
            font-size: 0.9rem;
        }
        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 16px;
            font-size: 1rem;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color var(--transition);
            font-size: 0.85rem;
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-col p {
            font-size: 0.85rem;
            line-height: 1.6;
            margin-bottom: 8px;
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 14px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            transition: all var(--transition);
            font-size: 0.95rem;
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 32px auto 0;
            padding: 18px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 16px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .review-card {
                grid-template-columns: 280px 1fr;
                gap: 20px;
            }
            .review-card-body {
                padding: 20px 20px 20px 0;
            }
            .rating-guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .editor-pick-card {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .editor-pick-card img {
                height: 220px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner .banner-stats {
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .nav-primary {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                align-items: stretch;
                border-bottom: 2px solid var(--divider);
                box-shadow: var(--shadow-lg);
                padding: 8px 0;
                z-index: 998;
            }
            .nav-primary.open {
                display: flex;
            }
            .nav-primary>li {
                height: auto;
            }
            .nav-primary>li>a {
                padding: 14px 20px;
                border-bottom: none;
                border-left: 3px solid transparent;
            }
            .nav-primary>li>a:hover,
            .nav-primary>li.active>a {
                border-bottom: none;
                border-left-color: var(--accent);
                background: #fef5f1;
            }
            .nav-primary>li.has-mega>a::after {
                margin-left: auto;
            }
            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                max-width: 100%;
                box-shadow: none;
                border-radius: 0;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                display: none;
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 12px 16px;
                border: none;
                background: #fafafa;
            }
            .nav-primary>li.has-mega.open-mobile .mega-panel {
                display: grid;
            }
            .mega-links {
                grid-template-columns: 1fr 1fr;
            }
            .mega-featured {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .review-card {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .review-card-img {
                min-height: 200px;
                max-height: 240px;
            }
            .review-card-body {
                padding: 18px 20px 20px;
            }
            .review-pros-cons {
                grid-template-columns: 1fr;
            }
            .rating-guide-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .page-banner {
                padding: 40px 0 32px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
            .page-banner .banner-stats {
                gap: 16px;
            }
            .page-banner .stat-num {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .btn-cta-outline {
                margin-left: 0;
                margin-top: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                gap: 4px;
            }
            .editor-pick-card {
                padding: 20px;
            }
        }
        @media (max-width: 520px) {
            .review-card-img {
                min-height: 180px;
                max-height: 200px;
            }
            .review-card-body h3 {
                font-size: 1.15rem;
            }
            .rating-guide-grid {
                grid-template-columns: 1fr;
            }
            .page-banner h1 {
                font-size: 1.45rem;
            }
            .mega-links {
                grid-template-columns: 1fr;
            }
            .review-rating {
                gap: 4px;
            }
            .review-rating .stars {
                font-size: 0.95rem;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1A3A5C;
            --primary-light: #234B6E;
            --primary-dark: #0F253D;
            --accent: #F05A28;
            --accent-light: #F47B52;
            --accent-dark: #C9461A;
            --bg: #F8F9FA;
            --bg-white: #FFFFFF;
            --text: #333333;
            --text-light: #6C757D;
            --text-muted: #8A939B;
            --border: #DEE2E6;
            --divider: #E9ECEF;
            --success: #28A745;
            --danger: #DC3545;
            --warning: #FFC107;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
            --transition: 0.2s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --section-padding: 80px;
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

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

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

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

        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
        }

        .text-small {
            font-size: 0.875rem;
            line-height: 1.6;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

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

        .logo-wrap a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.35rem;
            text-decoration: none;
            white-space: nowrap;
        }

        .logo-wrap a:hover {
            color: var(--accent);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
            height: 100%;
        }

        .nav-primary>li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }

        .nav-primary>li>a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 18px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }

        .nav-primary>li>a:hover,
        .nav-primary>li>a:focus {
            color: var(--accent);
            border-bottom-color: var(--accent);
            background: transparent;
        }

        .nav-primary>li.active>a {
            color: var(--accent);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }

        .nav-primary>li.has-mega>a::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: 6px;
            font-size: 0.75rem;
            transition: transform var(--transition);
        }

        .nav-primary>li.has-mega:hover>a::after {
            transform: rotate(180deg);
        }

        /* Mega Menu Panel */
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 820px;
            max-width: 95vw;
            background: var(--bg-white);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 28px 24px 20px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 24px;
            border: 1px solid var(--divider);
            border-top: 3px solid var(--accent);
        }

        .nav-primary>li.has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }

        .mega-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px 16px;
            align-content: start;
        }

        .mega-links a {
            display: block;
            padding: 8px 12px;
            color: var(--text);
            font-size: 0.9rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .mega-links a:hover {
            background: #fdf0eb;
            color: var(--accent);
        }

        .mega-links a.mega-active {
            background: #fdf0eb;
            color: var(--accent);
            font-weight: 600;
            border-left: 3px solid var(--accent);
            padding-left: 9px;
        }

        .mega-featured {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: center;
        }

        .mega-featured img {
            border-radius: var(--radius-sm);
            width: 100%;
            height: 140px;
            object-fit: cover;
            margin-bottom: 12px;
        }

        .mega-featured h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .mega-featured p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .mega-cta {
            display: inline-block;
            padding: 6px 18px;
            background: var(--accent);
            color: #fff !important;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition);
        }

        .mega-cta:hover {
            background: var(--accent-dark);
            color: #fff !important;
        }

        /* Mobile Nav Toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            padding: 12px 0;
        }

        .breadcrumb-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }

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

        .breadcrumb-inner a:hover {
            color: var(--accent);
        }

        .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }

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

        /* ========== PAGE HERO ========== */
        .page-hero {
            background: linear-gradient(135deg, rgba(26, 58, 92, 0.88) 0%, rgba(15, 37, 61, 0.92) 100%), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            padding: 60px 0 50px;
            position: relative;
            color: #fff;
            text-align: center;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .page-hero .hero-content {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .page-hero .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .page-hero h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
            line-height: 1.3;
        }

        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 24px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .page-hero .hero-cta-row {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-accent {
            display: inline-block;
            padding: 12px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-light {
            display: inline-block;
            padding: 12px 28px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        /* ========== MAIN CONTENT TWO-COLUMN ========== */
        .main-content-section {
            padding: 50px 0;
        }

        .two-col-grid {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 36px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            align-items: start;
        }

        /* Left Column - Articles */
        .articles-col .section-title-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            padding-bottom: 14px;
            border-bottom: 2px solid var(--divider);
            flex-wrap: wrap;
            gap: 10px;
        }

        .section-title-bar h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-title-bar h2 i {
            color: var(--accent);
            font-size: 1.2rem;
        }

        .section-title-bar .sort-tabs {
            display: flex;
            gap: 4px;
        }

        .sort-tab {
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            cursor: pointer;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-light);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .sort-tab.active-sort {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .sort-tab:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .sort-tab.active-sort:hover {
            color: #fff;
        }

        .article-card-horizontal {
            display: flex;
            gap: 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 20px;
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid transparent;
            align-items: flex-start;
        }

        .article-card-horizontal:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--divider);
        }

        .article-card-horizontal .article-img {
            flex-shrink: 0;
            width: 180px;
            height: 130px;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .article-card-horizontal .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .article-card-horizontal:hover .article-img img {
            transform: scale(1.05);
        }

        .article-card-horizontal .article-info {
            flex: 1;
            min-width: 0;
        }

        .article-card-horizontal .article-meta {
            display: flex;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            flex-wrap: wrap;
            align-items: center;
        }

        .article-card-horizontal .article-meta .tag-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            margin-right: 4px;
        }

        .article-card-horizontal h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .article-card-horizontal h3 a {
            color: var(--primary);
            text-decoration: none;
        }

        .article-card-horizontal h3 a:hover {
            color: var(--accent);
        }

        .article-card-horizontal .article-excerpt {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-horizontal .read-more-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }

        .article-card-horizontal .read-more-link:hover {
            gap: 8px;
            color: var(--accent-dark);
        }

        .article-card-horizontal .read-more-link i {
            font-size: 0.7rem;
        }

        /* Right Column - Sidebar */
        .sidebar-col {
            position: sticky;
            top: 84px;
        }

        .sidebar-widget {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--divider);
        }

        .sidebar-widget h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-widget h3 i {
            color: var(--accent);
            font-size: 0.95rem;
        }

        /* Tag Cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud .tag-item {
            display: inline-block;
            padding: 7px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid var(--border);
            color: var(--text-light);
            background: #fff;
            white-space: nowrap;
        }

        .tag-cloud .tag-item:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: #fdf0eb;
        }

        .tag-cloud .tag-item.tag-lg {
            font-size: 0.95rem;
            font-weight: 600;
            padding: 9px 16px;
            background: #fdf0eb;
            border-color: var(--accent-light);
            color: var(--accent-dark);
        }

        .tag-cloud .tag-item.tag-md {
            font-size: 0.85rem;
            padding: 8px 15px;
            border-color: #d0d6dc;
            color: var(--primary);
        }

        .tag-cloud .tag-item.tag-sm {
            font-size: 0.75rem;
            padding: 5px 11px;
        }

        /* Hot Articles Sidebar */
        .hot-article-item {
            display: flex;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--divider);
            align-items: flex-start;
        }

        .hot-article-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .hot-article-item .hot-rank {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }

        .hot-article-item:nth-child(2) .hot-rank {
            background: #f08a5d;
        }

        .hot-article-item:nth-child(3) .hot-rank {
            background: #f5b895;
        }

        .hot-article-item .hot-info h4 {
            font-size: 0.9rem;
            font-weight: 500;
            margin: 0 0 4px;
            line-height: 1.4;
        }

        .hot-article-item .hot-info h4 a {
            color: var(--text);
        }

        .hot-article-item .hot-info h4 a:hover {
            color: var(--accent);
        }

        .hot-article-item .hot-info .hot-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ========== TECH HIGHLIGHTS SECTION ========== */
        .tech-highlights {
            padding: 60px 0;
            background: var(--bg-white);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }

        .tech-highlights .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .tech-highlights .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .tech-highlights .section-header p {
            color: var(--text-light);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .highlight-stat-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .highlight-stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--divider);
            transform: translateY(-2px);
        }

        .highlight-stat-card .stat-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #fdf0eb;
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin: 0 auto 14px;
        }

        .highlight-stat-card .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .highlight-stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* ========== TECH SCENARIOS ========== */
        .tech-scenarios {
            padding: 60px 0;
            background: var(--bg);
        }

        .tech-scenarios .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .tech-scenarios .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .tech-scenarios .section-header p {
            color: var(--text-light);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .scenario-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--divider);
        }

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

        .scenario-card .scenario-img {
            height: 180px;
            overflow: hidden;
        }

        .scenario-card .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .scenario-card:hover .scenario-img img {
            transform: scale(1.06);
        }

        .scenario-card .scenario-body {
            padding: 20px;
        }

        .scenario-card .scenario-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .scenario-card .scenario-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-white);
            border-top: 1px solid var(--divider);
        }

        .faq-section .section-header {
            text-align: center;
            margin-bottom: 36px;
        }

        .faq-section .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .faq-section .section-header p {
            color: var(--text-light);
            font-size: 1rem;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .faq-item {
            background: var(--bg);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border-left: 3px solid transparent;
            transition: all var(--transition);
            overflow: hidden;
        }

        .faq-item.active-faq {
            border-left-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: all var(--transition);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #e0e5ea;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            transition: all var(--transition);
            color: var(--primary);
        }

        .faq-item.active-faq .faq-question .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-item.active-faq .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            text-align: center;
        }

        .cta-section .cta-inner {
            max-width: 700px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .cta-section .btn-accent {
            font-size: 1.05rem;
            padding: 14px 32px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1a2a3a;
            color: #c0c8d0;
            padding: 50px 0 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 30px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-col .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-col p {
            color: #b0b8c0;
            line-height: 1.6;
            margin-bottom: 8px;
            font-size: 0.85rem;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
        }

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

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

        .footer-col ul li a {
            color: #b0b8c0;
            font-size: 0.85rem;
            transition: color var(--transition);
        }

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

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 12px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #c0c8d0;
            font-size: 1rem;
            transition: all var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
        }

        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 20px;
            text-align: center;
            color: #889098;
            font-size: 0.8rem;
            line-height: 1.8;
        }

        .footer-bottom a {
            color: #b0b8c0;
        }

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .two-col-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .sidebar-col {
                position: static;
                top: auto;
            }
            .highlights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .mega-panel {
                width: 95vw;
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .mega-featured {
                display: none;
            }
            .mega-links {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .article-card-horizontal {
                flex-direction: column;
            }
            .article-card-horizontal .article-img {
                width: 100%;
                height: 180px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-primary {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                height: auto;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
                box-shadow: var(--shadow-md);
                z-index: 998;
                align-items: stretch;
            }
            .nav-primary.nav-open {
                max-height: 80vh;
                overflow-y: auto;
            }
            .nav-primary>li {
                height: auto;
                border-bottom: 1px solid var(--divider);
            }
            .nav-primary>li>a {
                padding: 14px 20px;
                border-bottom: none;
                width: 100%;
            }
            .nav-primary>li.has-mega .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                max-width: 100%;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                box-shadow: none;
                border-radius: 0;
                border: none;
                border-top: 1px solid var(--divider);
                display: none;
                grid-template-columns: 1fr;
                padding: 12px 20px;
            }
            .nav-primary>li.has-mega.mega-open .mega-panel {
                display: grid;
            }
            .mega-links {
                grid-template-columns: 1fr 1fr;
            }
            .mega-featured {
                display: none;
            }
            .highlights-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .page-hero {
                min-height: 260px;
                padding: 40px 0 36px;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero .hero-subtitle {
                font-size: 0.95rem;
            }
            .two-col-grid {
                gap: 20px;
            }
            .article-card-horizontal .article-img {
                height: 160px;
            }
            .section-title-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            :root {
                --section-padding: 40px;
            }
        }

        @media (max-width: @media (max-width: 520px) {
            .highlights-grid {
                grid-template-columns: 1fr;
            }
            .page-hero h1 {
                font-size: 1.4rem;
            }
            .page-hero .hero-subtitle {
                font-size: 0.85rem;
            }
            .article-card-horizontal {
                flex-direction: column;
            }
            .article-card-horizontal .article-img {
                width: 100%;
                height: 160px;
            }
            .article-card-horizontal h3 {
                font-size: 1rem;
            }
            .btn-accent,
            .btn-outline-light {
                padding: 10px 20px;
                font-size: 0.9rem;
                width: 100%;
                text-align: center;
            }
            .hero-cta-row {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }
            .hero-cta-row .btn-accent,
            .hero-cta-row .btn-outline-light {
                width: 100%;
                max-width: 280px;
            }
            .tag-cloud .tag-item {
                font-size: 0.75rem;
                padding: 5px 10px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .footer-bottom {
                font-size: 0.75rem;
            }
            .scenario-card .scenario-img {
                height: 140px;
            }
            .highlight-stat-card .stat-number {
                font-size: 1.5rem;
            }
            .highlight-stat-card {
                padding: 20px 14px;
            }
            .mega-links {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1A3A5C;
            --primary-light: #234B6E;
            --primary-dark: #0F253D;
            --accent: #F05A28;
            --accent-light: #F47B52;
            --accent-dark: #C9461A;
            --bg: #F8F9FA;
            --bg-white: #FFFFFF;
            --text: #333333;
            --text-light: #6C757D;
            --text-muted: #8A939B;
            --border: #DEE2E6;
            --divider: #E9ECEF;
            --success: #28A745;
            --danger: #DC3545;
            --warning: #FFC107;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
            --transition: 0.2s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --section-padding: 80px;
            --container-max: 1200px;
        }

        @media (max-width: 1024px) {
            :root {
                --section-padding: 50px;
            }
        }

        @media (max-width: 640px) {
            :root {
                --section-padding: 36px;
            }
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

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

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

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

        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
        }

        .text-small {
            font-size: 0.875rem;
            line-height: 1.6;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

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

        .logo-wrap a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.35rem;
            text-decoration: none;
            white-space: nowrap;
        }

        .logo-wrap a:hover {
            color: var(--accent);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
            height: 100%;
        }

        .nav-primary>li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }

        .nav-primary>li>a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 18px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }

        .nav-primary>li>a:hover,
        .nav-primary>li>a:focus {
            color: var(--accent);
            border-bottom-color: var(--accent);
            background: transparent;
        }

        .nav-primary>li.active>a {
            color: var(--accent);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }

        .nav-primary>li.has-mega>a::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: 6px;
            font-size: 0.75rem;
            transition: transform var(--transition);
        }

        .nav-primary>li.has-mega:hover>a::after {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 820px;
            max-width: 95vw;
            background: var(--bg-white);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 28px 24px 20px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 24px;
            border: 1px solid var(--divider);
        }

        .nav-primary>li.has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }

        .mega-links {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6px 16px;
            align-content: start;
        }

        .mega-links a {
            display: block;
            padding: 8px 12px;
            color: var(--text);
            font-size: 0.9rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            font-weight: 500;
        }

        .mega-links a:hover {
            background: var(--bg);
            color: var(--accent);
        }

        .mega-featured {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: center;
        }

        .mega-featured img {
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            width: 100%;
            height: 140px;
            object-fit: cover;
        }

        .mega-featured h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--primary);
        }

        .mega-featured p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .mega-cta {
            display: inline-block;
            padding: 7px 18px;
            background: var(--accent);
            color: #fff !important;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition);
        }

        .mega-cta:hover {
            background: var(--accent-dark);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-wrap {
            background: var(--bg-white);
            border-bottom: 1px solid var(--divider);
            padding: 12px 0;
        }

        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }

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

        .breadcrumb li+li::before {
            content: "\f105";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--text-muted);
            font-size: 0.7rem;
            margin-right: 2px;
        }

        .breadcrumb a {
            color: var(--text-light);
        }

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

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

        /* ========== PAGE HERO ========== */
        .page-hero {
            background: linear-gradient(135deg, rgba(26, 58, 92, 0.88) 0%, rgba(15, 37, 61, 0.92) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 60px 0 70px;
            color: #fff;
            position: relative;
        }

        .page-hero-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .page-hero-content h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
            line-height: 1.3;
        }

        .page-hero-content .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .hero-stats-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-item .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-light);
            line-height: 1.2;
        }

        .hero-stat-item .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 4px;
        }

        .page-hero-visual {
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .page-hero-visual h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 16px;
            text-align: center;
        }

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

        .hero-feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.95rem;
            line-height: 1.6;
        }

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

        .hero-feature-list li i {
            color: var(--accent-light);
            font-size: 1.1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ========== SECTION STYLES ========== */
        .section {
            padding: var(--section-padding) 0;
        }

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

        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-title h2 {
            font-size: 2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-title p {
            color: var(--text-light);
            font-size: 1.05rem;
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.8;
        }

        /* ========== ADVANTAGE CARDS ========== */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .advantage-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition);
            border: 1px solid var(--divider);
        }

        .advantage-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: transparent;
        }

        .advantage-card .adv-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--accent);
            transition: all var(--transition);
        }

        .advantage-card:hover .adv-icon {
            background: var(--accent);
            color: #fff;
        }

        .advantage-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .advantage-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: flex;
            gap: 0;
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
            flex-wrap: nowrap;
            justify-content: space-between;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 44px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--divider);
            z-index: 0;
        }

        .process-step {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 12px;
            min-width: 0;
        }

        .step-circle {
            width: 88px;
            height: 88px;
            border-radius: 50%;
            background: var(--bg-white);
            border: 3px solid var(--divider);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            transition: all var(--transition);
            position: relative;
            z-index: 1;
        }

        .process-step:hover .step-circle {
            border-color: var(--accent);
            background: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== FORM SECTION ========== */
        .form-section-wrap {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 48px 40px;
            max-width: 800px;
            margin: 0 auto;
            border: 1px solid var(--divider);
        }

        .form-section-wrap h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            text-align: center;
        }

        .form-section-wrap .form-subtitle {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 32px;
            font-size: 0.95rem;
        }

        .custom-form label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
            margin-bottom: 6px;
        }

        .custom-form input,
        .custom-form select,
        .custom-form textarea {
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 12px 16px;
            font-size: 0.95rem;
            color: var(--text);
            transition: all var(--transition);
            width: 100%;
            background: var(--bg);
            font-family: var(--font-stack);
        }

        .custom-form input:focus,
        .custom-form select:focus,
        .custom-form textarea:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(240, 90, 40, 0.1);
            background: #fff;
        }

        .custom-form textarea {
            min-height: 140px;
            resize: vertical;
        }

        .btn-submit {
            display: inline-block;
            padding: 14px 40px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            width: 100%;
            text-align: center;
            letter-spacing: 0.5px;
        }

        .btn-submit:hover {
            background: var(--accent-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .btn-submit:focus {
            outline: 3px solid var(--accent-light);
            outline-offset: 2px;
        }

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

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

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-left: 3px solid var(--accent);
            background: var(--bg);
            transition: all var(--transition);
            user-select: none;
        }

        .faq-question:hover {
            background: #eef2f6;
        }

        .faq-question i {
            transition: transform var(--transition);
            color: var(--accent);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.35s ease;
            color: var(--text-light);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        .faq-item.open .faq-answer {
            padding: 18px 24px;
            max-height: 500px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 60px 0;
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }

        .btn-cta-large {
            display: inline-block;
            padding: 16px 44px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 700;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.5px;
        }

        .btn-cta-large:hover {
            background: var(--accent-light);
            color: #fff;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px 40px;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
        }

        .footer-logo-text {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-col p {
            line-height: 1.7;
            margin-bottom: 8px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: all var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            transition: all var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .footer-bottom p {
            margin: 4px 0;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .page-hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .page-hero-content h1 {
                font-size: 2rem;
            }
            .advantage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                flex-wrap: wrap;
                gap: 24px;
                justify-content: center;
            }
            .process-steps::before {
                display: none;
            }
            .process-step {
                flex: 0 0 45%;
                min-width: 200px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .mega-panel {
                width: 95vw;
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .mega-featured {
                display: none;
            }
            .mega-links {
                grid-template-columns: 1fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }
            .nav-primary {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                height: auto;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s ease;
                box-shadow: var(--shadow-md);
                z-index: 998;
                padding: 0;
            }
            .nav-primary.mobile-open {
                max-height: 600px;
                overflow-y: auto;
            }
            .nav-primary>li {
                height: auto;
                flex-direction: column;
                border-bottom: 1px solid var(--divider);
            }
            .nav-primary>li>a {
                padding: 14px 20px;
                width: 100%;
                border-bottom: none;
                justify-content: space-between;
            }
            .nav-primary>li>a:hover {
                border-bottom: none;
                background: var(--bg);
            }
            .nav-primary>li.active>a {
                border-bottom: none;
                background: #fef5f2;
            }
            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                max-width: 100%;
                border-radius: 0;
                box-shadow: none;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                display: none;
                grid-template-columns: 1fr;
                padding: 12px 20px;
                border: none;
                background: #fafbfc;
            }
            .nav-primary>li.has-mega.open-mobile .mega-panel {
                display: block;
            }
            .mega-links {
                grid-template-columns: 1fr 1fr;
            }
            .mega-featured {
                display: none;
            }
            .page-hero {
                padding: 40px 0 50px;
            }
            .page-hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-stats-row {
                gap: 20px;
            }
            .hero-stat-item .stat-number {
                font-size: 1.5rem;
            }
            .advantage-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .process-step {
                flex: 0 0 100%;
                min-width: 100%;
            }
            .form-section-wrap {
                padding: 28px 20px;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero {
                padding: 30px 0 36px;
            }
            .page-hero-content h1 {
                font-size: 1.4rem;
            }
            .mega-links {
                grid-template-columns: 1fr;
            }
            .hero-stats-row {
                gap: 12px;
                flex-direction: column;
                align-items: flex-start;
            }
            .step-circle {
                width: 64px;
                height: 64px;
                font-size: 1.2rem;
            }
            .btn-cta-large {
                padding: 14px 28px;
                font-size: 1rem;
            }
        }