/* roulang page: index */
:root {
            --primary: #C8963E;
            --primary-dark: #A87A2E;
            --primary-light: #E0C080;
            --primary-bg: #FDF8F0;
            --secondary: #1B1B2F;
            --secondary-light: #2A2A45;
            --accent: #D4A843;
            --accent-glow: rgba(200, 150, 62, 0.35);
            --text-primary: #1a1a1a;
            --text-secondary: #5A5A5A;
            --text-muted: #888888;
            --text-on-dark: #E8E8E8;
            --bg-page: #FAF9F6;
            --bg-white: #FFFFFF;
            --bg-light: #F5F2EC;
            --bg-dark: #1B1B2F;
            --bg-card: #FFFFFF;
            --border: #E5E0D8;
            --border-light: #F0EDE6;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.09);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.16);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.07);
            --shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.13);
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 50px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
            --nav-height: 72px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.3;
            margin: 0;
            color: var(--text-primary);
        }

        .container-custom {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            background: rgba(255, 255, 255, 0.97);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .brand-logo {
            font-family: var(--font-heading);
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }
        .brand-logo:hover {
            color: var(--primary-dark);
        }
        .brand-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.25rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list>li {
            position: relative;
        }
        .nav-list>li>a {
            display: block;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-list>li>a:hover,
        .nav-list>li>a.active {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-list>li>a.active {
            font-weight: 600;
            color: var(--primary-dark);
            background: rgba(200, 150, 62, 0.1);
        }
        .mega-trigger {
            position: relative;
        }
        .mega-trigger>a .mega-arrow {
            font-size: 0.65rem;
            margin-left: 4px;
            transition: transform var(--transition-fast);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            min-width: 520px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 24px 28px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all var(--transition-smooth);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            border: 1px solid var(--border-light);
            z-index: 1060;
        }
        .mega-trigger:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(4px);
        }
        .mega-card {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            background: var(--bg-light);
            transition: all var(--transition-fast);
            cursor: pointer;
            border: 1px solid transparent;
        }
        .mega-card:hover {
            background: var(--primary-bg);
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .mega-card .mega-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .mega-card .mega-info {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .mega-card .mega-info small {
            display: block;
            font-weight: 400;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .btn-nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .navbar-toggler-custom {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
            cursor: pointer;
            transition: color var(--transition-fast);
        }
        .navbar-toggler-custom:hover {
            color: var(--primary);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1040;
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .mobile-nav-overlay.show {
            opacity: 1;
        }
        .mobile-nav-panel {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: var(--bg-white);
            z-index: 1055;
            padding: 24px 20px;
            overflow-y: auto;
            transition: right var(--transition-smooth);
            box-shadow: var(--shadow-xl);
        }
        .mobile-nav-panel.show {
            right: 0;
        }
        .mobile-nav-panel .mobile-nav-list a {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel .mobile-nav-list a:hover,
        .mobile-nav-panel .mobile-nav-list a.active {
            background: var(--primary-bg);
            color: var(--primary-dark);
        }
        .mobile-nav-panel .btn-close-mobile {
            display: block;
            margin-left: auto;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-secondary);
            padding: 6px;
            margin-bottom: 16px;
        }

        @media (max-width: 1024px) {
            .nav-list {
                display: none;
            }
            .navbar-toggler-custom {
                display: block;
            }
            .mobile-nav-overlay {
                display: block;
            }
            .header-actions .btn-nav-cta {
                display: none;
            }
            .header-actions .btn-nav-cta-mobile-spare {
                display: inline-block !important;
                font-size: 0.8rem;
                padding: 8px 14px;
                background: var(--primary);
                color: #fff;
                border-radius: var(--radius-full);
                font-weight: 600;
            }
        }
        @media (min-width: 1025px) {
            .mobile-nav-overlay,
            .mobile-nav-panel {
                display: none !important;
            }
            .btn-nav-cta-mobile-spare {
                display: none !important;
            }
        }
        @media (max-width: 520px) {
            .brand-logo {
                font-size: 1.25rem;
            }
            .brand-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .site-header {
                height: 60px;
            }
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 140px 24px 100px;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(27, 27, 47, 0.82) 0%, rgba(27, 27, 47, 0.7) 50%, rgba(27, 27, 47, 0.88) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(200, 150, 62, 0.2);
            border: 1px solid rgba(200, 150, 62, 0.4);
            color: var(--primary-light);
            padding: 8px 20px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: 3.25rem;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: -0.03em;
            margin-bottom: 18px;
            line-height: 1.2;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 50%, #F0D68A 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-hero-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-bounce);
            box-shadow: 0 8px 28px var(--accent-glow);
            border: none;
        }
        .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(200, 150, 62, 0.5);
            color: #fff;
        }
        .btn-hero-outline {
            background: transparent;
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-fast);
        }
        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-section {
                min-height: 80vh;
                padding: 110px 20px 70px;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-badge {
                font-size: 0.78rem;
                padding: 6px 16px;
            }
        }

        /* ============ STATS BAR ============ */
        .stats-bar {
            margin-top: -60px;
            position: relative;
            z-index: 10;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            padding: 36px 28px;
            border: 1px solid var(--border-light);
        }
        .stat-item {
            text-align: center;
            padding: 10px 8px;
            position: relative;
        }
        .stat-item+.stat-item {
            border-left: 1px solid var(--border-light);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-number .stat-unit {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
                padding: 24px 16px;
            }
            .stat-item+.stat-item {
                border-left: none;
            }
            .stat-item:nth-child(odd) {
                border-right: 1px solid var(--border-light);
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .stats-bar {
                margin-top: -40px;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
                padding: 18px 10px;
                border-radius: var(--radius-md);
            }
            .stat-number {
                font-size: 1.4rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
        }

        /* ============ SECTIONS ============ */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.7rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ============ ADVANTAGE CARDS ============ */
        .adv-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .adv-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .adv-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .adv-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: var(--primary-light);
        }
        .adv-card:hover::before {
            opacity: 1;
        }
        .adv-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-md);
            background: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--primary);
            transition: all var(--transition-smooth);
        }
        .adv-card:hover .adv-icon {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px var(--accent-glow);
        }
        .adv-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--secondary);
        }
        .adv-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .adv-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .adv-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .adv-card {
                padding: 24px 18px;
            }
        }

        /* ============ CATEGORY CARDS ============ */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .cat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .cat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: var(--primary-light);
        }
        .cat-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .cat-card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cat-card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 4px 12px;
            border-radius: var(--radius-full);
            margin-bottom: 10px;
            width: fit-content;
            letter-spacing: 0.03em;
        }
        .cat-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }
        .cat-card-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.5;
            flex: 1;
        }
        .cat-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            margin-top: 12px;
            transition: gap var(--transition-fast);
        }
        .cat-card-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }
        @media (max-width: 1024px) {
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .cat-grid {
                grid-template-columns: 1fr;
            }
            .cat-card-img {
                height: 160px;
            }
        }

        /* ============ BRAND STORY ============ */
        .brand-story-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }
        .brand-story-img {
            width: 100%;
            height: 100%;
            min-height: 380px;
            object-fit: cover;
            display: block;
        }
        .brand-story-text {
            padding: 40px 36px 40px 8px;
        }
        .brand-story-text h3 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
        }
        .brand-story-text p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .brand-story-block {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .brand-story-img {
                min-height: 240px;
                max-height: 300px;
            }
            .brand-story-text {
                padding: 28px 20px;
            }
            .brand-story-text h3 {
                font-size: 1.4rem;
            }
        }

        /* ============ SERVICE CARDS ============ */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .service-card {
            display: flex;
            gap: 20px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            align-items: flex-start;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .service-card-img {
            width: 100px;
            height: 100px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
        }
        .service-card-info h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }
        .service-card-info p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        @media (max-width: 768px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
            .service-card {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

        /* ============ TESTIMONIALS ============ */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
            position: relative;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 8px;
            opacity: 0.7;
        }
        .testimonial-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }
        .testimonial-author {
            font-weight: 700;
            color: var(--secondary);
            font-size: 0.9rem;
        }
        .testimonial-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        @media (max-width: 768px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ============ NEWS LIST ============ */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .news-item {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .news-date {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 6px;
        }
        .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-excerpt {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .btn-read-more {
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition-fast);
            background: none;
            padding: 0;
        }
        .btn-read-more:hover {
            color: var(--primary-dark);
            gap: 9px;
        }
        @media (max-width: 768px) {
            .news-list {
                grid-template-columns: 1fr;
            }
        }

        /* ============ FAQ ACCORDION ============ */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--secondary);
            background: var(--bg-white);
            padding: 18px 22px;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
            box-shadow: none !important;
            letter-spacing: 0.01em;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary-dark);
            background: var(--primary-bg);
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px var(--accent-glow) !important;
        }
        .faq-accordion .accordion-body {
            padding: 16px 22px 22px;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(200, 150, 62, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        .cta-title {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }
        .btn-cta-lg {
            background: linear-gradient(135deg, var(--primary) 0%, #D4A843 100%);
            color: #fff;
            padding: 16px 40px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1.05rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-bounce);
            box-shadow: 0 10px 32px rgba(200, 150, 62, 0.4);
            border: none;
            display: inline-block;
        }
        .btn-cta-lg:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 44px rgba(200, 150, 62, 0.55);
            color: #fff;
        }
        @media (max-width: 520px) {
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .btn-cta-lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--secondary);
            color: var(--text-on-dark);
            padding: 56px 0 28px;
            margin-top: var(--section-gap);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            font-family: var(--font-heading);
        }
        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .site-footer {
                padding: 40px 0 20px;
                margin-top: 48px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ============ MISC UTILITY ============ */
        .bg-light-warm {
            background: var(--bg-light);
        }
        .text-gold {
            color: var(--primary) !important;
        }
        .divider {
            width: 60px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
            margin: 0 auto 20px;
        }
        @media (max-width: 768px) {
            .hide-mobile {
                display: none !important;
            }
        }
        @media (min-width: 769px) {
            .show-mobile-only {
                display: none !important;
            }
        }

/* roulang page: category1 */
:root {
            --brand-gold: #C8963E;
            --brand-gold-deep: #A67B2E;
            --brand-gold-light: #E8D5A3;
            --brand-gold-pale: #F9F3E6;
            --brand-dark: #1C1C28;
            --brand-dark-soft: #2A2A38;
            --text-primary: #2D2D2D;
            --text-secondary: #6B6B6B;
            --text-weak: #999999;
            --bg-page: #FBF9F6;
            --bg-white: #FFFFFF;
            --bg-warm: #FDFAF5;
            --border-soft: #E8E4DC;
            --border-light: #F0EDE6;
            --shadow-sm: 0 1px 3px rgba(28, 28, 40, 0.06);
            --shadow-md: 0 4px 16px rgba(28, 28, 40, 0.08);
            --shadow-lg: 0 8px 32px rgba(28, 28, 40, 0.10);
            --shadow-xl: 0 16px 48px rgba(28, 28, 40, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-primary);
            background-color: var(--bg-page);
            line-height: 1.7;
            letter-spacing: 0.01em;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-fast);
        }
        a:hover {
            color: var(--brand-gold);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-soft);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-smooth);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 20px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--brand-dark);
            letter-spacing: 0.03em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .brand-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-gold) 0%, var(--brand-gold-deep) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.15rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--brand-gold-deep);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-list>li {
            position: relative;
        }
        .nav-list>li>a {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-primary);
            white-space: nowrap;
            transition: var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .nav-list>li>a:hover {
            color: var(--brand-gold);
            background: var(--brand-gold-pale);
        }
        .nav-list>li>a.active {
            color: var(--brand-gold-deep);
            background: var(--brand-gold-pale);
            font-weight: 600;
            position: relative;
        }
        .nav-list>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2.5px;
            background: var(--brand-gold);
            border-radius: 2px;
            transition: var(--transition-fast);
        }

        /* Mega Menu */
        .mega-trigger {
            position: relative;
        }
        .mega-arrow {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
            margin-left: 2px;
        }
        .mega-trigger:hover .mega-arrow {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 10px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--border-soft);
            padding: 16px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            min-width: 360px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all var(--transition-smooth);
            z-index: 999;
        }
        .mega-trigger:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: var(--transition-fast);
            background: var(--bg-warm);
            border: 1px solid transparent;
        }
        .mega-card:hover {
            background: var(--brand-gold-pale);
            border-color: var(--brand-gold-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .mega-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--brand-gold) 0%, var(--brand-gold-deep) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .mega-info {
            display: flex;
            flex-direction: column;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .mega-info small {
            font-weight: 400;
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--brand-gold-pale);
            border: 1px solid var(--border-soft);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--brand-dark);
            flex-shrink: 0;
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(28, 28, 40, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .mobile-nav-overlay.show {
            opacity: 1;
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 64px;
            right: -320px;
            width: 300px;
            bottom: 0;
            background: var(--bg-white);
            z-index: 999;
            box-shadow: var(--shadow-xl);
            padding: 20px;
            overflow-y: auto;
            transition: right var(--transition-smooth);
        }
        .mobile-nav-panel.show {
            right: 0;
        }
        .mobile-nav-panel .nav-list-mobile {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav-panel .nav-list-mobile a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-primary);
            transition: var(--transition-fast);
        }
        .mobile-nav-panel .nav-list-mobile a:hover,
        .mobile-nav-panel .nav-list-mobile a.active {
            background: var(--brand-gold-pale);
            color: var(--brand-gold-deep);
            font-weight: 600;
        }
        .mobile-mega-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            margin-top: 8px;
            padding: 0 8px;
        }
        .mobile-mega-cards .mega-card {
            padding: 10px;
            font-size: 0.8rem;
        }
        .mobile-mega-cards .mega-icon {
            width: 32px;
            height: 32px;
            font-size: 0.75rem;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            background: linear-gradient(135deg, rgba(28, 28, 40, 0.88) 0%, rgba(28, 28, 40, 0.75) 100%), url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 70px 0;
            position: relative;
            color: #fff;
            text-align: center;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40px;
            background: linear-gradient(to top, var(--bg-page) 0%, transparent 100%);
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(200, 150, 62, 0.25);
            border: 1px solid rgba(200, 150, 62, 0.4);
            color: var(--brand-gold-light);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .page-banner h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.8;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 56px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-heading {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-heading .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--brand-gold-deep);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
            background: var(--brand-gold-pale);
            padding: 4px 14px;
            border-radius: 50px;
        }
        .section-heading h2 {
            font-family: var(--font-heading);
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--brand-dark);
            letter-spacing: 0.02em;
            margin-top: 8px;
        }
        .section-heading .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 8px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition-smooth);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--brand-gold-light);
        }
        .card-custom .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #f5f3ef;
        }
        .card-custom .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .card-custom:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-custom .card-body-custom {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-custom .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--brand-gold-deep);
            background: var(--brand-gold-pale);
            padding: 3px 10px;
            border-radius: 50px;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
            width: fit-content;
        }
        .card-custom h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-custom p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .card-custom .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--brand-gold-deep);
            margin-top: 12px;
            transition: var(--transition-fast);
        }
        .card-custom .card-link:hover {
            gap: 10px;
            color: var(--brand-gold);
        }
        .card-custom .card-link i {
            font-size: 0.75rem;
        }

        /* Data stat card */
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition-smooth);
            height: 100%;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-card .stat-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: var(--brand-gold-pale);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.3rem;
            color: var(--brand-gold-deep);
        }
        .stat-card .stat-value {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-dark);
            letter-spacing: 0.02em;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        .stat-card .stat-change {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 50px;
            margin-top: 6px;
        }
        .stat-change.up {
            color: #2E7D5B;
            background: #E8F5EE;
        }
        .stat-change.down {
            color: #C0392B;
            background: #FDEDEC;
        }

        /* List item */
        .info-list-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .info-list-item:last-child {
            border-bottom: none;
        }
        .info-list-item .list-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--brand-gold-pale);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--brand-gold-deep);
            font-size: 1rem;
        }
        .info-list-item .list-content h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 600;
            color: var(--brand-dark);
            margin-bottom: 4px;
        }
        .info-list-item .list-content p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin: 0;
        }
        .info-list-item .list-meta {
            font-size: 0.78rem;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* ========== CTA BLOCK ========== */
        .cta-block {
            background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-dark-soft) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.12);
            pointer-events: none;
        }
        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.08);
            pointer-events: none;
        }
        .cta-block h3 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-block p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 550px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }
        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-gold);
            color: #fff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: var(--transition-smooth);
            position: relative;
            z-index: 1;
            border: none;
        }
        .btn-gold:hover {
            background: var(--brand-gold-deep);
            color: #fff;
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.35);
            transform: translateY(-2px);
        }
        .btn-outline-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-gold);
            font-weight: 600;
            padding: 10px 24px;
            border-radius: 50px;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            border: 2px solid var(--brand-gold);
            transition: var(--transition-smooth);
        }
        .btn-outline-gold:hover {
            background: var(--brand-gold);
            color: #fff;
            box-shadow: 0 4px 20px rgba(200, 150, 62, 0.3);
            transform: translateY(-2px);
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            transition: var(--transition-fast);
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: var(--brand-gold-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--brand-dark);
            letter-spacing: 0.02em;
            gap: 12px;
            user-select: none;
        }
        .faq-question i {
            color: var(--brand-gold);
            font-size: 0.85rem;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin: 0;
        }
        .footer-heading {
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            transition: var(--transition-fast);
            display: inline-block;
            width: fit-content;
        }
        .footer-links a:hover {
            color: var(--brand-gold-light);
            transform: translateX(3px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.03em;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-weak);
            padding: 16px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb-row a {
            color: var(--text-secondary);
        }
        .breadcrumb-row a:hover {
            color: var(--brand-gold-deep);
        }
        .breadcrumb-row span {
            color: var(--text-primary);
            font-weight: 500;
        }
        .breadcrumb-sep {
            color: #ccc;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section {
                padding: 44px 0;
            }
            .card-custom h3 {
                font-size: 1.05rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
            }
            .nav-list {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav-overlay,
            .mobile-nav-panel {
                display: block;
            }
            .page-banner {
                padding: 48px 0;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section {
                padding: 36px 0;
            }
            .section-heading h2 {
                font-size: 1.5rem;
            }
            .cta-block {
                padding: 32px 22px;
                border-radius: var(--radius-lg);
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
            .stat-card .stat-value {
                font-size: 1.5rem;
            }
            .mega-panel {
                display: none;
            }
            .container-custom {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .page-banner {
                padding: 36px 0;
            }
            .card-custom .card-body-custom {
                padding: 14px 16px;
            }
            .card-custom h3 {
                font-size: 0.95rem;
            }
            .section-heading h2 {
                font-size: 1.3rem;
            }
            .stat-card {
                padding: 16px 14px;
            }
            .stat-card .stat-value {
                font-size: 1.3rem;
            }
            .btn-gold {
                padding: 10px 22px;
                font-size: 0.85rem;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
            }
            .mobile-nav-panel {
                width: 260px;
                right: -280px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a3a5c;
            --color-primary-dark: #0f2540;
            --color-accent: #c8963e;
            --color-accent-light: #e0b865;
            --color-accent-glow: #f0d78c;
            --color-highlight: #2c7be5;
            --color-bg: #f7f8fa;
            --color-bg-white: #ffffff;
            --color-bg-card: #ffffff;
            --color-bg-dark: #0f2540;
            --color-bg-accent: #fef9f1;
            --color-text: #1e293b;
            --color-text-secondary: #5a6b7c;
            --color-text-muted: #8899aa;
            --color-text-light: #bcc5ce;
            --color-border: #e2e8f0;
            --color-border-light: #edf2f7;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-danger: #ef4444;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-xs: 0 1px 3px rgba(15, 37, 64, 0.04);
            --shadow-sm: 0 2px 8px rgba(15, 37, 64, 0.06);
            --shadow-md: 0 4px 16px rgba(15, 37, 64, 0.08);
            --shadow-lg: 0 8px 32px rgba(15, 37, 64, 0.12);
            --shadow-xl: 0 16px 48px rgba(15, 37, 64, 0.16);
            --shadow-accent: 0 4px 20px rgba(200, 150, 62, 0.25);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --container-max: 1200px;
            --container-narrow: 960px;
            --section-gap: 72px;
            --section-gap-sm: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-highlight);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-narrow {
            width: 100%;
            max-width: var(--container-narrow);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

        .header-logo {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            box-shadow: var(--shadow-accent);
        }

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

        .header-nav-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: flex-end;
        }

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

        .nav-list>li {
            position: relative;
        }

        .nav-list>li>a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 15px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
        }

        .nav-list>li>a:hover {
            color: var(--color-primary);
            background: rgba(26, 58, 92, 0.05);
        }

        .nav-list>li>a.active {
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.08);
            font-weight: 600;
        }

        .nav-list>li>a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            border-radius: 99px;
            background: var(--color-accent);
        }

        /* Mega Menu */
        .mega-trigger {
            position: relative;
        }

        .mega-arrow {
            font-size: 0.65rem;
            transition: transform var(--transition-fast);
            margin-left: 2px;
        }

        .mega-trigger:hover .mega-arrow {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 380px;
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--color-border-light);
            padding: 14px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all var(--transition-smooth);
            pointer-events: none;
            z-index: 1060;
        }

        .mega-trigger:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition-fast);
            background: var(--color-bg);
            border: 1px solid transparent;
        }

        .mega-card:hover {
            background: var(--color-bg-white);
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .mega-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), #1e5080);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .mega-card:nth-child(2) .mega-icon {
            background: linear-gradient(135deg, #e07b39, #f0a060);
        }
        .mega-card:nth-child(3) .mega-icon {
            background: linear-gradient(135deg, #2c7be5, #5a9cf5);
        }
        .mega-card:nth-child(4) .mega-icon {
            background: linear-gradient(135deg, #10b981, #34d399);
        }

        .mega-info {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-text);
            display: flex;
            flex-direction: column;
        }
        .mega-info small {
            font-weight: 400;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-top: 1px;
        }

        /* Mobile Toggle */
        .nav-mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-text);
            background: var(--color-bg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }

        .nav-mobile-toggle:hover {
            background: var(--color-border-light);
            color: var(--color-primary);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            min-height: 340px;
            display: flex;
            align-items: center;
            background: linear-gradient(160deg, #0f2540 0%, #1a3a5c 35%, #1e4d78 100%);
            overflow: hidden;
        }

        .page-banner .banner-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.18;
            pointer-events: none;
        }

        .page-banner .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 37, 64, 0.55) 0%, rgba(15, 37, 64, 0.78) 100%);
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
            text-align: center;
            color: #fff;
        }

        .page-banner .banner-breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .page-banner .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }
        .page-banner .banner-breadcrumb a:hover {
            color: var(--color-accent-light);
        }

        .page-banner .banner-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .page-banner .banner-title {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            margin-bottom: 12px;
            line-height: 1.2;
            color: #fff;
        }

        .page-banner .banner-title .accent {
            color: var(--color-accent-light);
        }

        .page-banner .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-heading {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-heading .section-label {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 99px;
            font-size: 0.82rem;
            font-weight: 600;
            background: rgba(200, 150, 62, 0.1);
            color: var(--color-accent);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .section-heading .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }
        .section-heading .section-desc {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 620px;
            margin: 0 auto;
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-smooth);
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-custom .card-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card-custom .card-icon-wrap.icon-blue {
            background: #e8f2fd;
            color: #2c7be5;
        }
        .card-custom .card-icon-wrap.icon-gold {
            background: #fef6e8;
            color: #c8963e;
        }
        .card-custom .card-icon-wrap.icon-green {
            background: #e6f7f0;
            color: #10b981;
        }
        .card-custom .card-icon-wrap.icon-purple {
            background: #f3eefc;
            color: #7c5cfc;
        }
        .card-custom .card-icon-wrap.icon-teal {
            background: #e6f5f7;
            color: #0ea5a0;
        }
        .card-custom .card-icon-wrap.icon-rose {
            background: #fef0f0;
            color: #e85d5d;
        }
        .card-custom h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text);
        }
        .card-custom p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== METRIC CARD ========== */
        .metric-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-smooth);
            height: 100%;
        }
        .metric-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .metric-card .metric-value {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.03em;
            line-height: 1;
            margin-bottom: 6px;
        }
        .metric-card .metric-value .accent-num {
            color: var(--color-accent);
        }
        .metric-card .metric-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }
        .metric-card .metric-sub {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ========== IMAGE BLOCK ========== */
        .img-block {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-smooth);
        }
        .img-block img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform var(--transition-smooth);
        }
        .img-block:hover img {
            transform: scale(1.03);
        }

        /* ========== LIST STYLES ========== */
        .check-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .check-list li {
            padding: 10px 0 10px 30px;
            position: relative;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }
        .check-list li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 12px;
            color: var(--color-accent);
            font-size: 0.85rem;
        }

        /* ========== FAQ ========== */
        .faq-accordion .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-accordion .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: transparent;
            border: none;
            cursor: pointer;
            transition: color var(--transition-fast);
        }
        .faq-accordion .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-accordion .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            transition: all var(--transition-bounce);
            color: var(--color-text-muted);
        }
        .faq-accordion .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            color: #fff;
        }
        .faq-accordion .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 20px;
        }
        .faq-accordion .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }
        .faq-accordion .faq-answer p {
            font-size: 0.93rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(150deg, #0f2540 0%, #1a3a5c 50%, #1e4d78 100%);
            border-radius: var(--radius-2xl);
            padding: 52px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.12);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(44, 123, 229, 0.1);
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-section h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== BUTTONS ========== */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 99px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-smooth);
            cursor: pointer;
            border: none;
            text-decoration: none;
        }
        .btn-brand-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: var(--shadow-accent);
        }
        .btn-brand-primary:hover {
            background: #d4a448;
            color: #fff;
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.35);
            transform: translateY(-2px);
        }
        .btn-brand-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }
        .btn-brand-outline:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-brand-white {
            background: #fff;
            color: var(--color-primary);
            box-shadow: var(--shadow-md);
        }
        .btn-brand-white:hover {
            background: #f0f4f8;
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 15px 32px;
            font-size: 1.05rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: #c5d0db;
            padding: 48px 0 24px;
            margin-top: var(--section-gap);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: #8a9ab0;
            line-height: 1.6;
            margin: 0;
        }
        .footer-heading {
            font-size: 0.92rem;
            font-weight: 700;
            color: #e2e8f0;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 7px;
        }
        .footer-links li a {
            color: #8a9ab0;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-links li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: #6e7f90;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .page-banner .banner-title {
                font-size: 2rem;
            }
            .section-heading .section-title {
                font-size: 1.6rem;
            }
            .section {
                padding: 48px 0;
            }
            .cta-section {
                padding: 40px 28px;
                border-radius: var(--radius-xl);
            }
            .cta-section h3 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
            }
            .nav-mobile-toggle {
                display: flex;
            }
            .header-nav-wrap {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                justify-content: flex-start;
                padding: 16px;
                gap: 0;
                transform: translateX(100%);
                transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 1040;
                overflow-y: auto;
            }
            .header-nav-wrap.mobile-open {
                transform: translateX(0);
            }
            .nav-list {
                flex-direction: column;
                gap: 2px;
                width: 100%;
            }
            .nav-list>li>a {
                width: 100%;
                padding: 13px 16px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
                justify-content: space-between;
            }
            .nav-list>li>a.active::after {
                display: none;
            }
            .nav-list>li>a.active {
                border-left: 3px solid var(--color-accent);
                border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            }
            .mega-panel {
                position: static;
                width: 100%;
                box-shadow: none;
                border: none;
                opacity: 1;
                visibility: visible;
                transform: none;
                pointer-events: auto;
                display: none;
                padding: 8px;
            }
            .mega-trigger.open-mobile .mega-panel {
                display: grid;
            }
            .mega-trigger:hover .mega-panel {
                display: none;
            }
            .mega-trigger.open-mobile:hover .mega-panel {
                display: grid;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner .banner-title {
                font-size: 1.7rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.95rem;
            }
            .page-banner .banner-content {
                padding: 40px 0;
            }
            .section {
                padding: 36px 0;
            }
            .section-heading {
                margin-bottom: 28px;
            }
            .section-heading .section-title {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
            .metric-card .metric-value {
                font-size: 1.8rem;
            }
            .card-custom {
                padding: 20px 16px;
            }
        }

        @media (max-width: 520px) {
            .header-logo {
                font-size: 1.2rem;
            }
            .header-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .page-banner {
                min-height: 220px;
            }
            .page-banner .banner-title {
                font-size: 1.4rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.85rem;
            }
            .page-banner .banner-breadcrumb {
                font-size: 0.78rem;
            }
            .page-banner .banner-content {
                padding: 30px 0;
            }
            .section-heading .section-title {
                font-size: 1.25rem;
            }
            .section-heading .section-label {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .cta-section {
                padding: 24px 16px;
            }
            .cta-section h3 {
                font-size: 1.15rem;
            }
            .btn-brand {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
            .mega-panel {
                grid-template-columns: 1fr;
            }
            .container-custom,
            .container-narrow {
                padding-left: 14px;
                padding-right: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1a3c5e;
            --color-primary-dark: #0f2840;
            --color-primary-light: #2a567f;
            --color-accent: #e8783b;
            --color-accent-warm: #f5985c;
            --color-accent-glow: #ffb87a;
            --color-bg: #f8f9fb;
            --color-surface: #ffffff;
            --color-surface-alt: #f0f3f7;
            --color-text: #1d2b3a;
            --color-text-secondary: #5a6b7d;
            --color-text-muted: #8899aa;
            --color-border: #e2e7ee;
            --color-border-light: #eef1f5;
            --color-success: #2d9d6f;
            --color-warning: #f0a635;
            --color-danger: #d94a4a;
            --color-hot: #e8553d;
            --color-hot-bg: #fef3f0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
            --shadow-accent: 0 8px 28px rgba(232, 120, 59, 0.2);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width-container: 1240px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }

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

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

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

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width-container);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-brand {
            font-family: var(--font-heading);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 9px;
            transition: color var(--transition-fast);
        }

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

        .logo-icon-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: var(--shadow-sm);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-list>li {
            position: relative;
        }

        .nav-list>li>a {
            display: inline-flex;
            align-items: center;
            padding: 8px 15px;
            border-radius: var(--radius-sm);
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-list>li>a:hover {
            color: var(--color-primary);
            background: rgba(26, 60, 94, 0.04);
        }

        .nav-list>li>a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(26, 60, 94, 0.07);
        }

        .nav-list>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 15px;
            right: 15px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
            transition: all var(--transition-fast);
        }

        .mega-trigger {
            position: relative;
        }

        .mega-trigger>a {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .mega-arrow {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }

        .mega-trigger:hover .mega-arrow {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 10px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 16px;
            display: grid;
            grid-template-columns: repeat(2, 210px);
            gap: 10px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all var(--transition-base);
            z-index: 1060;
            border: 1px solid var(--color-border-light);
        }

        .mega-trigger:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition-fast);
            background: var(--color-surface-alt);
            border: 1px solid transparent;
        }

        .mega-card:hover {
            background: #fff;
            border-color: var(--color-border);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .mega-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .mega-info {
            display: flex;
            flex-direction: column;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-text);
            line-height: 1.3;
        }

        .mega-info small {
            font-weight: 400;
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        @media (max-width: 1024px) {
            .nav-list {
                gap: 2px;
            }
            .nav-list>li>a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .mega-panel {
                grid-template-columns: repeat(2, 180px);
                right: -60px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 60px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .logo-brand {
                font-size: 1.2rem;
            }
            .logo-icon-mark {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .mobile-menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-wrapper {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                bottom: 0;
                background: #fff;
                z-index: 1049;
                flex-direction: column;
                padding: 20px;
                overflow-y: auto;
                transform: translateX(100%);
                transition: transform var(--transition-base);
                display: flex;
            }
            .nav-wrapper.open {
                transform: translateX(0);
            }
            .nav-list {
                flex-direction: column;
                gap: 4px;
                width: 100%;
            }
            .nav-list>li {
                width: 100%;
            }
            .nav-list>li>a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-md);
            }
            .nav-list>li>a.active::after {
                display: none;
            }
            .nav-list>li>a.active {
                border-left: 3px solid var(--color-accent);
                background: rgba(26, 60, 94, 0.05);
            }
            .mega-panel {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                grid-template-columns: 1fr 1fr;
                padding: 8px 0;
                margin-top: 4px;
                border: none;
                background: transparent;
            }
            .mega-card {
                background: var(--color-surface-alt);
                padding: 10px 12px;
            }
            .mega-arrow {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .mega-panel {
                grid-template-columns: 1fr;
                gap: 6px;
            }
            .logo-brand {
                font-size: 1.05rem;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(26, 60, 94, 0.88) 0%,
                    rgba(15, 40, 64, 0.78) 40%,
                    rgba(26, 60, 94, 0.82) 100%);
            z-index: 1;
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 50px 0;
            color: #fff;
            width: 100%;
        }

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            margin-bottom: 16px;
            color: rgba(255, 255, 255, 0.75);
            flex-wrap: wrap;
        }

        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }

        .banner-breadcrumb a:hover {
            color: #fff;
        }

        .banner-breadcrumb .separator {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.75rem;
        }

        .banner-title {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: -0.4px;
            margin-bottom: 12px;
            line-height: 1.25;
            color: #fff;
        }

        .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            line-height: 1.7;
        }

        .banner-accent-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-accent);
            margin-right: 10px;
            vertical-align: middle;
            box-shadow: 0 0 12px rgba(232, 120, 59, 0.6);
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 260px;
            }
            .page-banner .banner-content {
                padding: 36px 0;
            }
            .banner-title {
                font-size: 1.8rem;
            }
            .banner-subtitle {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .page-banner {
                min-height: 220px;
            }
            .banner-title {
                font-size: 1.5rem;
            }
            .banner-subtitle {
                font-size: 0.88rem;
            }
        }

        /* ========== MAIN CONTENT SECTIONS ========== */
        main {
            flex: 1;
            padding-bottom: 70px;
        }

        .section-block {
            padding: 60px 0;
        }

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

        .section-block.no-top-pad {
            padding-top: 30px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: var(--color-accent);
            margin-bottom: 8px;
            background: rgba(232, 120, 59, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
        }

        .section-heading {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 700px;
            margin-bottom: 36px;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 40px 0;
            }
            .section-heading {
                font-size: 1.55rem;
            }
            .section-desc {
                font-size: 0.95rem;
                margin-bottom: 24px;
            }
        }

        /* ========== HOT RANKING TABLE ========== */
        .ranking-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            background: #fff;
            border: 1px solid var(--color-border-light);
        }

        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .ranking-table thead th {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 14px 18px;
            text-align: left;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .ranking-table thead th:first-child {
            border-radius: var(--radius-lg) 0 0 0;
        }

        .ranking-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }

        .ranking-table tbody td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.93rem;
            color: var(--color-text);
            vertical-align: middle;
        }

        .ranking-table tbody tr {
            transition: background var(--transition-fast);
        }

        .ranking-table tbody tr:hover {
            background: rgba(26, 60, 94, 0.03);
        }

        .ranking-table tbody tr:last-child td {
            border-bottom: none;
        }

        .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .rank-badge.top1 {
            background: #ffe8c0;
            color: #b86d14;
            box-shadow: 0 0 10px rgba(200, 130, 30, 0.25);
        }

        .rank-badge.top2 {
            background: #e8ecf2;
            color: #4a5568;
            box-shadow: 0 0 8px rgba(100, 120, 150, 0.2);
        }

        .rank-badge.top3 {
            background: #f2e0d4;
            color: #8b5a3c;
            box-shadow: 0 0 8px rgba(150, 100, 60, 0.2);
        }

        .rank-badge.default {
            background: #f5f6f8;
            color: #6b7c8e;
        }

        .hot-tag {
            display: inline-block;
            padding: 4px 11px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--color-hot-bg);
            color: var(--color-hot);
            white-space: nowrap;
        }

        .hot-tag.rising {
            background: #fff7ed;
            color: #e8783b;
        }

        .hot-tag.stable {
            background: #f0faf5;
            color: #2d9d6f;
        }

        .trend-arrow {
            font-size: 0.85rem;
            margin-left: 4px;
        }

        .trend-arrow.up {
            color: #d94a4a;
        }

        .trend-arrow.down {
            color: #2d9d6f;
        }

        @media (max-width: 768px) {
            .ranking-table thead th,
            .ranking-table tbody td {
                padding: 10px 12px;
                font-size: 0.82rem;
            }
            .rank-badge {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
        }

        /* ========== ANALYSIS CARDS ========== */
        .analysis-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .analysis-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .analysis-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }

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

        .analysis-card-tag {
            display: inline-block;
            font-size: 0.76rem;
            font-weight: 600;
            color: var(--color-accent);
            background: rgba(232, 120, 59, 0.08);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .analysis-card-title {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .analysis-card-desc {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
        }

        .analysis-card-stat {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
        }

        .analysis-card-stat i {
            color: var(--color-accent);
            font-size: 0.8rem;
        }

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

        @media (max-width: 600px) {
            .analysis-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .analysis-card-img {
                height: 170px;
            }
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 0 0 4px 4px;
            transition: width var(--transition-base);
        }

        .stat-card:hover::before {
            width: 80px;
        }

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

        .stat-icon-circle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            box-shadow: var(--shadow-sm);
        }

        .stat-icon-circle.warm {
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-warm) 100%);
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.5px;
            line-height: 1.1;
        }

        .stat-label {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }

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

        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .stat-icon-circle {
                width: 42px;
                height: 42px;
                font-size: 1.1rem;
            }
        }

        /* ========== INSIGHT BLOCK ========== */
        .insight-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .insight-image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .insight-image-wrap img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .insight-image-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(0, 0, 0, 0.7);
            color: #fff;
            padding: 6px 14px;
            border-radius: 18px;
            font-size: 0.82rem;
            font-weight: 600;
            backdrop-filter: blur(6px);
        }

        .insight-text h3 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .insight-text p {
            font-size: 0.98rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin-bottom: 10px;
        }

        .insight-highlights {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
        }

        .insight-highlight-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-surface-alt);
            padding: 8px 14px;
            border-radius: 20px;
            font-size: 0.86rem;
            font-weight: 500;
            color: var(--color-text);
            border: 1px solid var(--color-border-light);
        }

        .insight-highlight-item i {
            color: var(--color-accent);
            font-size: 0.75rem;
        }

        @media (max-width: 768px) {
            .insight-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .insight-text h3 {
                font-size: 1.35rem;
            }
            .insight-image-wrap img {
                aspect-ratio: 16/10;
            }
        }

        /* ========== FAQ ========== */
        .faq-wrap .accordion-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-fast);
        }

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

        .faq-wrap .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            background: #fff;
            padding: 18px 22px;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
            box-shadow: none;
        }

        .faq-wrap .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: rgba(26, 60, 94, 0.03);
            box-shadow: none;
        }

        .faq-wrap .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(26, 60, 94, 0.1);
            border-color: var(--color-primary-light);
        }

        .faq-wrap .accordion-body {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            padding: 6px 22px 20px 22px;
            background: #fff;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0f2b45 50%, var(--color-primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
            letter-spacing: -0.3px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta {
            display: inline-block;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            background: var(--color-accent);
            color: #fff;
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            box-shadow: var(--shadow-accent);
            letter-spacing: 0.3px;
        }

        .btn-cta:hover {
            background: var(--color-accent-warm);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(232, 120, 59, 0.35);
            color: #fff;
        }

        .btn-cta:active {
            transform: translateY(0);
            box-shadow: var(--shadow-accent);
        }

        .btn-outline-light-custom {
            display: inline-block;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            letter-spacing: 0.3px;
            margin-left: 12px;
        }

        .btn-outline-light-custom:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 36px 22px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.93rem;
            }
            .btn-cta,
            .btn-outline-light-custom {
                display: block;
                margin: 8px auto;
                width: 80%;
                text-align: center;
            }
            .btn-outline-light-custom {
                margin-left: auto;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0f1e2f;
            color: #c5cfda;
            padding: 50px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 30px;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-desc {
            color: #a4b3c2;
            line-height: 1.7;
            font-size: 0.85rem;
            max-width: 300px;
        }

        .footer-heading {
            font-weight: 600;
            color: #e2e8f0;
            margin-bottom: 12px;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
        }

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

        .footer-links li {
            margin-bottom: 7px;
        }

        .footer-links a {
            color: #a4b3c2;
            transition: color var(--transition-fast);
            font-size: 0.86rem;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            text-align: center;
            color: #7a8ea0;
            font-size: 0.82rem;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-desc {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 36px 0 20px;
            }
        }

        /* ========== UTILITIES ========== */
        .text-accent {
            color: var(--color-accent) !important;
        }
        .fw-700 {
            font-weight: 700 !important;
        }
        .mt-neg-10 {
            margin-top: -10px;
        }

/* roulang page: category3 */
:root {
            --primary: #C8872B;
            --primary-dark: #A06E1E;
            --primary-light: #E8C87A;
            --primary-bg: #FDF6EB;
            --secondary: #1A2332;
            --secondary-light: #2C3A4F;
            --accent: #E05D3A;
            --bg: #F9F8F5;
            --bg-warm: #F5F0E8;
            --card-bg: #FFFFFF;
            --text: #1A1A1A;
            --text-strong: #0D0D0D;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5E0D8;
            --border-light: #F0EBE3;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.07);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.09);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.11);
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Segoe UI', system-ui, sans-serif;
            --max-width: 1240px;
            --nav-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(200, 135, 43, 0.5);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-strong);
            margin-top: 0;
        }

        .container-custom {
            width: 100%;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

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

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            font-family: var(--font-heading);
            letter-spacing: 1px;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 22px;
            color: var(--secondary);
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 3px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-list>li {
            position: relative;
        }

        .nav-list>li>a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            white-space: nowrap;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .nav-list>li>a:hover {
            background: var(--primary-bg);
            color: var(--primary-dark);
        }

        .nav-list>li>a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(200, 135, 43, 0.3);
        }

        .nav-list>li>a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* Mega Menu */
        .mega-trigger {
            position: relative;
        }

        .mega-arrow {
            font-size: 10px;
            transition: transform var(--transition-fast);
        }

        .mega-trigger:hover .mega-arrow {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 16px;
            display: grid;
            grid-template-columns: repeat(2, 200px);
            gap: 10px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all var(--transition);
            z-index: 1001;
            pointer-events: none;
        }

        .mega-trigger:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius);
            cursor: pointer;
            transition: all var(--transition-fast);
            background: var(--bg);
            border: 1px solid transparent;
        }

        .mega-card:hover {
            background: var(--primary-bg);
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .mega-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary-bg), #FEF3E0);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
        }

        .mega-info {
            font-weight: 600;
            font-size: 14px;
            color: var(--text-strong);
            display: flex;
            flex-direction: column;
            line-height: 1.4;
        }

        .mega-info small {
            font-weight: 400;
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Hamburger */
        .hamburger-btn {
            display: none;
            width: 42px;
            height: 42px;
            background: transparent;
            border: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            z-index: 1002;
            cursor: pointer;
        }

        .hamburger-btn:hover {
            background: var(--bg-warm);
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--secondary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Mobile nav overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .mobile-nav-overlay.show {
            opacity: 1;
        }

        .mobile-nav-panel {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            max-width: 85vw;
            height: 100vh;
            background: #fff;
            z-index: 1001;
            padding: 24px 20px;
            overflow-y: auto;
            transition: right var(--transition-slow);
            box-shadow: var(--shadow-lg);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-nav-panel.show {
            right: 0;
        }

        .mobile-nav-panel .mobile-nav-close {
            align-self: flex-end;
            width: 36px;
            height: 36px;
            background: var(--bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text);
            cursor: pointer;
            border: none;
            transition: all var(--transition-fast);
        }

        .mobile-nav-panel .mobile-nav-close:hover {
            background: #e5e5e5;
        }

        .mobile-nav-panel a {
            display: block;
            padding: 13px 16px;
            border-radius: var(--radius);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .mobile-nav-panel a:hover {
            background: var(--primary-bg);
            color: var(--primary-dark);
            border-color: var(--border-light);
        }

        .mobile-nav-panel a.mobile-active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .mobile-mega-section {
            margin-top: 8px;
            padding: 12px;
            background: var(--bg);
            border-radius: var(--radius);
        }

        .mobile-mega-section .mobile-mega-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            padding-left: 8px;
        }

        .mobile-mega-section a {
            font-size: 14px;
            padding: 10px 12px;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            padding: 14px 0;
            background: transparent;
        }

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

        .breadcrumb-custom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-custom .sep {
            color: var(--text-light);
            font-size: 11px;
        }

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

        /* ========== HERO BANNER ========== */
        .page-hero {
            position: relative;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 360px;
            display: flex;
            align-items: center;
            border-radius: var(--radius-xl);
            overflow: hidden;
            margin: 20px auto;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 35, 50, 0.82) 0%, rgba(26, 35, 50, 0.55) 50%, rgba(200, 135, 43, 0.35) 100%);
            z-index: 1;
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            padding: 50px 40px;
            color: #fff;
            max-width: 700px;
        }

        .page-hero-content .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 7px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 16px;
            color: #fff;
        }

        .page-hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .page-hero-content .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.7;
            max-width: 550px;
        }

        .page-hero-content .hero-stats-row {
            display: flex;
            gap: 28px;
            margin-top: 22px;
            flex-wrap: wrap;
        }

        .page-hero-content .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .page-hero-content .hero-stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary-light);
            letter-spacing: 1px;
        }

        .page-hero-content .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== SECTION STYLES ========== */
        .section-block {
            padding: 56px 0;
        }

        .section-block.section-alt {
            background: var(--card-bg);
            border-radius: var(--radius-xl);
            margin: 0 auto 20px;
            max-width: var(--max-width);
            padding: 48px 32px;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-strong);
            letter-spacing: 0.5px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 32px;
        }

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

        .section-header .section-title {
            margin-bottom: 8px;
        }

        /* ========== SKILL CATEGORY CARDS ========== */
        .skill-cat-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .skill-cat-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px 18px;
            text-align: center;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: var(--shadow-xs);
        }

        .skill-cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            background: var(--primary-bg);
        }

        .skill-cat-card .cat-icon-circle {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-bg), #FEF3E0);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            color: var(--primary);
            font-size: 22px;
            transition: all var(--transition);
        }

        .skill-cat-card:hover .cat-icon-circle {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(200, 135, 43, 0.35);
        }

        .skill-cat-card .cat-title {
            font-weight: 700;
            font-size: 15px;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .skill-cat-card .cat-count {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== FEATURED ARTICLE ========== */
        .featured-article-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }

        .featured-card-large {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            cursor: pointer;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .featured-card-large .fc-img-wrap {
            position: relative;
            height: 240px;
            overflow: hidden;
        }

        .featured-card-large .fc-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .featured-card-large:hover .fc-img-wrap img {
            transform: scale(1.04);
        }

        .featured-card-large .fc-img-wrap .fc-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            z-index: 2;
        }

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

        .featured-card-large .fc-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.4;
        }

        .featured-card-large .fc-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }

        .featured-card-large .fc-meta {
            display: flex;
            gap: 16px;
            font-size: 12px;
            color: var(--text-light);
        }

        /* ========== ARTICLE LIST GRID ========== */
        .article-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .article-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            cursor: pointer;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .article-card .ac-img-wrap {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .article-card .ac-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .article-card .ac-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 11px;
            font-weight: 600;
            z-index: 2;
        }

        .article-card .ac-body {
            padding: 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .article-card .ac-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.4;
        }

        .article-card .ac-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.55;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card .ac-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-light);
            padding-top: 8px;
            border-top: 1px solid var(--border-light);
        }

        .article-card .ac-meta .ac-read-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 12px;
            transition: color var(--transition-fast);
        }

        .article-card:hover .ac-meta .ac-read-more {
            color: var(--primary-dark);
        }

        /* ========== TIPS ACCORDION ========== */
        .tips-accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .tips-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--card-bg);
            box-shadow: var(--shadow-xs);
        }

        .tips-accordion .accordion-button {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-strong);
            background: var(--card-bg);
            padding: 18px 20px;
            border: none;
            box-shadow: none;
            transition: all var(--transition-fast);
            border-radius: var(--radius) !important;
        }

        .tips-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-bg);
            color: var(--primary-dark);
            border-bottom: 1px solid var(--border-light);
        }

        .tips-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary-light);
        }

        .tips-accordion .accordion-body {
            padding: 20px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.75;
            background: #fdfdfb;
        }

        .tips-accordion .accordion-body ul {
            list-style: disc;
            padding-left: 20px;
            margin: 8px 0;
        }

        .tips-accordion .accordion-body ul li {
            margin-bottom: 6px;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-xs);
            transition: all var(--transition);
        }

        .stat-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .stat-card .stat-icon {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: 1px;
            line-height: 1;
        }

        .stat-card .stat-number span {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
        }

        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            background: transparent;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-strong);
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--primary-dark);
            background: var(--primary-bg);
        }

        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--primary);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 20px 18px;
        }

        .faq-answer-inner {
            font-size: 15px;
            color: var(--text);
            line-height: 1.75;
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }

        /* ========== CTA ========== */
        .cta-block {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .cta-block h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }

        .cta-block p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 500px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }

        .btn-cta-gold {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 1px;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(200, 135, 43, 0.4);
            cursor: pointer;
            text-decoration: none;
        }

        .btn-cta-gold:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(200, 135, 43, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline-white {
            display: inline-block;
            background: transparent;
            color: #fff;
            padding: 13px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            margin-left: 12px;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        /* ========== PAGINATION ========== */
        .pagination-row {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 36px;
        }

        .pagination-row .page-dot {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 14px;
            color: var(--text);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .pagination-row .page-dot:hover {
            background: var(--primary-bg);
            border-color: var(--primary-light);
        }

        .pagination-row .page-dot.active-page {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 3px 10px rgba(200, 135, 43, 0.3);
        }

        .pagination-row .page-arrow {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-fast);
            color: var(--text-muted);
            font-size: 13px;
        }

        .pagination-row .page-arrow:hover {
            background: var(--bg-warm);
            color: var(--primary);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--secondary);
            color: #c5cdd8;
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 10px;
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: #a0aab6;
            max-width: 300px;
        }

        .footer-heading {
            font-weight: 700;
            font-size: 15px;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-links a {
            color: #a0aab6;
            font-size: 14px;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

        .footer-links a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            font-size: 13px;
            color: #7a8490;
            letter-spacing: 0.5px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1200px) {
            .skill-cat-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .article-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-article-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero-content h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 992px) {
            .skill-cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-article-grid {
                grid-template-columns: 1fr;
            }
            .nav-list>li>a {
                padding: 8px 10px;
                font-size: 13px;
            }
            .section-block.section-alt {
                margin-left: 12px;
                margin-right: 12px;
                padding: 32px 18px;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper .nav-list {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .mobile-nav-overlay {
                display: block;
            }
            .skill-cat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .skill-cat-card {
                padding: 18px 12px;
            }
            .skill-cat-card .cat-icon-circle {
                width: 42px;
                height: 42px;
                font-size: 18px;
            }
            .skill-cat-card .cat-title {
                font-size: 13px;
            }
            .article-grid-3 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .featured-article-grid {
                grid-template-columns: 1fr;
            }
            .featured-card-large .fc-img-wrap {
                height: 180px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .page-hero {
                min-height: 260px;
                border-radius: var(--radius-lg);
                margin: 10px 12px;
            }
            .page-hero-content {
                padding: 30px 20px;
            }
            .page-hero-content h1 {
                font-size: 1.7rem;
            }
            .page-hero-content .hero-subtitle {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-block {
                padding: 36px 0;
            }
            .cta-block {
                padding: 32px 20px;
                margin: 0 12px;
                border-radius: var(--radius-lg);
            }
            .cta-block h3 {
                font-size: 1.4rem;
            }
            .btn-outline-white {
                margin-left: 0;
                margin-top: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .pagination-row .page-dot,
            .pagination-row .page-arrow {
                width: 32px;
                height: 32px;
                font-size: 12px;
            }
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
        }

        @media (max-width: 520px) {
            .skill-cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .skill-cat-card {
                padding: 14px 8px;
                border-radius: var(--radius);
            }
            .skill-cat-card .cat-icon-circle {
                width: 36px;
                height: 36px;
                font-size: 15px;
                margin-bottom: 8px;
            }
            .skill-cat-card .cat-title {
                font-size: 12px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 16px 10px;
                border-radius: var(--radius);
            }
            .stat-card .stat-number {
                font-size: 1.3rem;
            }
            .stat-card .stat-label {
                font-size: 12px;
            }
            .page-hero {
                min-height: 210px;
                margin: 8px;
                border-radius: var(--radius);
            }
            .page-hero-content {
                padding: 22px 14px;
            }
            .page-hero-content h1 {
                font-size: 1.4rem;
            }
            .page-hero-content .hero-subtitle {
                font-size: 0.85rem;
            }
            .page-hero-content .hero-stats-row {
                gap: 14px;
            }
            .page-hero-content .hero-stat-num {
                font-size: 1.2rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .featured-card-large .fc-img-wrap {
                height: 150px;
            }
            .featured-card-large .fc-body h3 {
                font-size: 1rem;
            }
            .article-card .ac-img-wrap {
                height: 150px;
            }
            .article-card .ac-body h3 {
                font-size: 0.9rem;
            }
        }

/* roulang page: category6 */
:root {
            --brand-gold: #c88a1a;
            --brand-gold-dark: #a06e10;
            --brand-gold-light: #e8b84b;
            --brand-gold-pale: #fdf3dc;
            --brand-deep: #1a1a2e;
            --brand-slate: #1e293b;
            --brand-gray: #475569;
            --text-primary: #1a1a2e;
            --text-secondary: #4a5568;
            --text-weak: #6b7280;
            --text-muted: #9ca3af;
            --bg-page: #f9fafb;
            --bg-white: #ffffff;
            --bg-warm: #fefcf7;
            --bg-gold-subtle: #fef9ee;
            --border-light: #e5e7eb;
            --border-medium: #d1d5db;
            --border-soft: #eef0f3;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 18px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-gold: 0 6px 24px rgba(200, 138, 26, 0.18);
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 50%;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-smooth: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-heading: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Inter', system-ui, sans-serif;
            --max-width: 1260px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--brand-gold);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-soft);
            box-shadow: var(--shadow-xs);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--brand-deep);
            letter-spacing: 0.02em;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .logo-link:hover {
            color: var(--brand-gold);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-dark));
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 6px;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .nav-list>li {
            position: relative;
        }
        .nav-list>li>a {
            display: block;
            padding: 10px 16px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-xs);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
            cursor: pointer;
        }
        .nav-list>li>a:hover {
            color: var(--brand-gold);
            background: var(--bg-gold-subtle);
        }
        .nav-list>li>a.active {
            color: var(--brand-gold-dark);
            font-weight: 600;
            background: var(--brand-gold-pale);
            border-radius: var(--radius-xs);
        }
        .mega-trigger {
            position: relative;
        }
        .mega-trigger>a {
            display: flex !important;
            align-items: center;
            gap: 6px;
        }
        .mega-arrow {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }
        .mega-trigger:hover .mega-arrow {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xl);
            padding: 16px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            min-width: 380px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all var(--transition-smooth);
            z-index: 1001;
            border: 1px solid var(--border-soft);
            pointer-events: none;
        }
        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
        }
        .mega-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-fast);
            background: var(--bg-page);
            border: 1px solid transparent;
        }
        .mega-card:hover {
            background: var(--bg-gold-subtle);
            border-color: var(--brand-gold-pale);
            box-shadow: var(--shadow-sm);
        }
        .mega-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-xs);
            background: linear-gradient(135deg, var(--brand-gold-light), var(--brand-gold));
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .mega-info {
            display: flex;
            flex-direction: column;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .mega-info small {
            font-weight: 400;
            font-size: 0.78rem;
            color: var(--text-weak);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-xs);
            transition: background var(--transition-fast);
            line-height: 1;
        }
        .mobile-toggle:hover {
            background: var(--bg-gold-subtle);
            color: var(--brand-gold);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, #1a1a2e 0%, #1e293b 40%, #2a3548 100%);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.82) 0%, rgba(30, 41, 59, 0.7) 60%, rgba(200, 138, 26, 0.25) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
        }
        .banner-badge {
            display: inline-block;
            background: rgba(200, 138, 26, 0.25);
            color: var(--brand-gold-light);
            border: 1px solid rgba(200, 138, 26, 0.4);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .banner-title {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.03em;
            line-height: 1.25;
            margin-bottom: 14px;
        }
        .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .banner-stats-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .banner-stat-item {
            display: flex;
            flex-direction: column;
        }
        .banner-stat-num {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-gold-light);
            letter-spacing: 0.02em;
        }
        .banner-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 0.03em;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 64px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--brand-gold);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-deep);
            letter-spacing: 0.02em;
            margin-bottom: 10px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-weak);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-light {
            background: var(--bg-warm);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }
        .section-gold-bg {
            background: var(--bg-gold-subtle);
            border-top: 1px solid var(--brand-gold-pale);
            border-bottom: 1px solid var(--brand-gold-pale);
        }

        /* ========== STEPS ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step-counter;
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition-base);
            counter-increment: step-counter;
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--brand-gold-pale);
        }
        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            margin: 0 auto 18px;
            font-family: var(--font-heading);
        }
        .step-card h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--brand-deep);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== KNOWLEDGE CARDS ========== */
        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .knowledge-card {
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .knowledge-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--brand-gold-pale);
        }
        .knowledge-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .knowledge-card-body {
            padding: 22px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .knowledge-card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--brand-gold-dark);
            background: var(--brand-gold-pale);
            padding: 4px 10px;
            border-radius: 50px;
            margin-bottom: 10px;
            align-self: flex-start;
            letter-spacing: 0.03em;
        }
        .knowledge-card h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--brand-deep);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .knowledge-card p {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.6;
            margin: 0;
            flex: 1;
        }

        /* ========== TUTORIAL SECTION ========== */
        .tutorial-row {
            display: flex;
            gap: 40px;
            align-items: center;
            flex-wrap: wrap;
        }
        .tutorial-text {
            flex: 1;
            min-width: 300px;
        }
        .tutorial-text h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.6rem;
            color: var(--brand-deep);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .tutorial-text p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .tutorial-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tutorial-list li {
            padding: 8px 0 8px 28px;
            position: relative;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .tutorial-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 8px;
            color: var(--brand-gold);
            font-weight: 700;
            font-size: 1rem;
        }
        .tutorial-image-wrap {
            flex: 1;
            min-width: 300px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-soft);
        }
        .tutorial-image-wrap img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* ========== MISTAKES ========== */
        .mistakes-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .mistake-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px 22px;
            border-left: 4px solid #ef4444;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border-top: 1px solid var(--border-soft);
            border-right: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }
        .mistake-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .mistake-card h5 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            color: #b91c1c;
            margin-bottom: 6px;
        }
        .mistake-card p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-xs);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--brand-gold-pale);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--brand-deep);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-family: var(--font-heading);
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--brand-gold-dark);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-full);
            background: var(--bg-gold-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--brand-gold);
            transition: all var(--transition-fast);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--brand-gold);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 22px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            background: var(--bg-page);
            border-top: 0px solid transparent;
            transition: all var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 16px 22px;
            border-top: 1px solid var(--border-soft);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-deep) 0%, var(--brand-slate) 100%);
            border-radius: var(--radius-lg);
            padding: 52px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            margin: 0 0 40px 0;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: var(--radius-full);
            background: rgba(200, 138, 26, 0.15);
            pointer-events: none;
        }
        .cta-section h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.9rem;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 500px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }

        /* ========== BUTTONS ========== */
        .btn-brand {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-dark));
            color: #fff;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-gold);
            text-align: center;
            font-family: var(--font-body);
        }
        .btn-brand:hover {
            background: linear-gradient(135deg, var(--brand-gold-dark), #8b5e0a);
            box-shadow: 0 8px 28px rgba(200, 138, 26, 0.3);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline-brand {
            display: inline-block;
            padding: 11px 26px;
            background: transparent;
            color: var(--brand-gold);
            border: 2px solid var(--brand-gold);
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
            font-family: var(--font-body);
        }
        .btn-outline-brand:hover {
            background: var(--brand-gold);
            color: #fff;
            box-shadow: var(--shadow-gold);
            transform: translateY(-2px);
        }
        .btn-white {
            display: inline-block;
            padding: 12px 28px;
            background: #fff;
            color: var(--brand-deep);
            border: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-md);
            text-align: center;
            font-family: var(--font-body);
        }
        .btn-white:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            color: var(--brand-gold-dark);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-deep);
            color: rgba(255, 255, 255, 0.8);
            padding: 52px 0 28px;
            margin-top: 20px;
            border-top: 4px solid var(--brand-gold);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .footer-desc {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin: 0;
        }
        .footer-heading {
            font-weight: 700;
            font-size: 0.95rem;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
            cursor: pointer;
        }
        .footer-links a:hover {
            color: var(--brand-gold-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.03em;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .knowledge-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .banner-title {
                font-size: 2.1rem;
            }
            .page-banner {
                min-height: 280px;
            }
            .mega-panel {
                min-width: 300px;
                right: -40px;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 2px solid var(--border-medium);
                box-shadow: var(--shadow-lg);
                padding: 12px 20px;
                gap: 2px;
                z-index: 999;
                max-height: 70vh;
                overflow-y: auto;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list>li>a {
                padding: 12px 14px;
                border-radius: var(--radius-xs);
                font-size: 0.95rem;
            }
            .mega-panel {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                grid-template-columns: 1fr 1fr;
                min-width: auto;
                padding: 8px;
                margin-top: 4px;
                pointer-events: auto;
                display: none;
            }
            .mega-trigger.open-mega .mega-panel {
                display: grid;
            }
            .mega-trigger>a {
                justify-content: space-between;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .knowledge-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .mistakes-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .tutorial-row {
                flex-direction: column;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .banner-title {
                font-size: 1.7rem;
            }
            .banner-desc {
                font-size: 0.95rem;
            }
            .banner-stats-row {
                gap: 18px;
            }
            .banner-stat-num {
                font-size: 1.5rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 36px 22px;
                margin: 0 0 30px 0;
            }
            .cta-section h3 {
                font-size: 1.4rem;
            }
            .page-banner {
                min-height: 240px;
            }
            .page-banner .banner-content {
                padding: 40px 0;
            }
            .container-custom {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .step-card {
                padding: 22px 16px;
            }
            .banner-title {
                font-size: 1.4rem;
            }
            .banner-stats-row {
                flex-direction: column;
                gap: 10px;
            }
            .banner-stat-num {
                font-size: 1.3rem;
            }
            .knowledge-card-img {
                height: 160px;
            }
            .cta-section h3 {
                font-size: 1.2rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .mega-panel {
                grid-template-columns: 1fr;
            }
            .btn-brand,
            .btn-outline-brand,
            .btn-white {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #1a56db;
            --color-primary-dark: #123fa3;
            --color-primary-light: #e8f0fe;
            --color-accent: #f59e0b;
            --color-accent-dark: #d97706;
            --color-accent-light: #fef3c7;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-success: #10b981;
            --color-success-light: #d1fae5;
            --color-danger: #ef4444;
            --color-danger-light: #fee2e2;
            --color-info: #3b82f6;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1260px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }
        .header-logo {
            font-family: var(--font-heading);
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            cursor: pointer;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--color-primary-dark);
        }
        .header-logo .logo-icon {
            display: inline-block;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            border-radius: var(--radius-sm);
            text-align: center;
            line-height: 38px;
            font-size: 1.1rem;
            margin-right: 8px;
            vertical-align: middle;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-list {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 2px;
            margin: 0;
            padding: 0;
        }
        .nav-list li {
            position: relative;
        }
        .nav-list li a {
            display: inline-flex;
            align-items: center;
            padding: 10px 15px;
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
        }
        .nav-list li a:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .nav-list li a.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            font-weight: 600;
        }
        .nav-list li a.nav-cta-btn {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            padding: 10px 20px;
            border-radius: var(--radius-full);
            margin-left: 6px;
            transition: all var(--transition-base);
        }
        .nav-list li a.nav-cta-btn:hover {
            background: var(--color-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* Mega Menu */
        .mega-trigger {
            position: relative;
        }
        .mega-trigger>a {
            cursor: pointer;
        }
        .mega-arrow {
            font-size: 0.65rem;
            margin-left: 4px;
            transition: transform var(--transition-fast);
        }
        .mega-trigger:hover .mega-arrow {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 16px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            min-width: 380px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all var(--transition-base);
            z-index: 999;
            pointer-events: none;
        }
        .mega-trigger:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
        }
        .mega-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition-fast);
            background: var(--color-bg);
            border: 1px solid transparent;
        }
        .mega-card:hover {
            background: var(--color-primary-light);
            border-color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .mega-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .mega-info {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-text);
            line-height: 1.3;
        }
        .mega-info small {
            display: block;
            font-weight: 400;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 1px;
        }

        /* Mobile Nav Toggle */
        .nav-toggle-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .nav-toggle-btn:hover {
            background: var(--color-border-light);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 54, 219, 0.88) 0%, rgba(18, 40, 140, 0.82) 50%, rgba(10, 25, 80, 0.9) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 50px 0;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.25);
        }
        .page-banner h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: -0.03em;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .page-banner .banner-subtitle {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 620px;
            line-height: 1.65;
        }

        /* ========== SECTION SPACING ========== */
        .section-py {
            padding: 70px 0;
        }
        .section-py-sm {
            padding: 50px 0;
        }
        .section-heading {
            font-family: var(--font-heading);
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }
        .section-subheading {
            font-size: 1rem;
            color: var(--color-text-secondary);
            margin-bottom: 36px;
            max-width: 600px;
        }
        .section-heading-center {
            text-align: center;
        }
        .section-heading-center .section-subheading {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== CASE CARDS ========== */
        .case-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
            cursor: pointer;
        }
        .case-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }
        .case-card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .case-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .case-card:hover .case-card-img img {
            transform: scale(1.06);
        }
        .case-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--color-accent);
            color: #1a1a1a;
            font-weight: 700;
            font-size: 0.78rem;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            z-index: 3;
            letter-spacing: 0.02em;
        }
        .case-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .case-card-body h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
            line-height: 1.4;
        }
        .case-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin-bottom: 14px;
            line-height: 1.6;
            flex: 1;
        }
        .case-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
        }
        .case-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .case-card-meta i {
            font-size: 0.75rem;
            color: var(--color-primary);
        }

        /* ========== FEATURED CASE DETAIL ========== */
        .featured-case-block {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
        }
        .featured-case-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }
        .featured-case-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
        }
        .featured-case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-case-info {
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-case-info .fc-badge {
            display: inline-block;
            background: var(--color-success-light);
            color: var(--color-success);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            margin-bottom: 12px;
            width: fit-content;
        }
        .featured-case-info h3 {
            font-family: var(--font-heading);
            font-size: 1.55rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .featured-case-info p {
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .featured-case-stats {
            display: flex;
            gap: 28px;
            margin-top: 16px;
            flex-wrap: wrap;
        }
        .fc-stat {
            text-align: center;
        }
        .fc-stat .fc-stat-num {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
        }
        .fc-stat .fc-stat-label {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ========== STATS RIBBON ========== */
        .stats-ribbon {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-card .stat-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .stat-card .stat-icon.blue {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }
        .stat-card .stat-icon.amber {
            background: var(--color-accent-light);
            color: var(--color-accent-dark);
        }
        .stat-card .stat-icon.green {
            background: var(--color-success-light);
            color: var(--color-success);
        }
        .stat-card .stat-icon.red {
            background: var(--color-danger-light);
            color: var(--color-danger);
        }
        .stat-card .stat-num {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1;
            margin-bottom: 4px;
        }
        .stat-card .stat-label {
            font-size: 0.88rem;
            color: var(--color-text-muted);
        }

        /* ========== USER STORY ========== */
        .story-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            height: 100%;
            position: relative;
        }
        .story-card::before {
            content: '\201C';
            position: absolute;
            top: 10px;
            left: 18px;
            font-size: 4rem;
            color: var(--color-primary-light);
            font-family: serif;
            line-height: 1;
            pointer-events: none;
        }
        .story-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .story-card .story-text {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            padding-top: 14px;
            position: relative;
            z-index: 1;
        }
        .story-card .story-author {
            display: flex;
            align-items: center;
            gap: 10px;
            border-top: 1px solid var(--color-border-light);
            padding-top: 14px;
        }
        .story-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .story-author-info strong {
            display: block;
            font-size: 0.9rem;
            color: var(--color-text);
        }
        .story-author-info span {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--color-surface);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            background: var(--color-surface);
            padding: 18px 22px;
            border-radius: var(--radius-md) !important;
            box-shadow: none !important;
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .faq-accordion .accordion-button::after {
            background-size: 16px;
        }
        .faq-accordion .accordion-body {
            padding: 8px 22px 20px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            font-size: 0.95rem;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0f3590 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.75rem;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }
        .cta-section p {
            opacity: 0.9;
            margin-bottom: 24px;
            font-size: 1rem;
        }
        .btn-cta-primary {
            background: #fff;
            color: var(--color-primary);
            font-weight: 700;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-size: 1rem;
            border: none;
            transition: all var(--transition-base);
            display: inline-block;
            letter-spacing: 0.01em;
        }
        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
            color: var(--color-primary-dark);
        }
        .btn-outline-light-custom {
            background: transparent;
            color: #fff;
            font-weight: 600;
            padding: 13px 30px;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-base);
            display: inline-block;
            margin-left: 10px;
        }
        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 50px 0 0;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-desc {
            font-size: 0.88rem;
            line-height: 1.65;
            color: #94a3b8;
            max-width: 300px;
        }
        .footer-heading {
            font-weight: 700;
            font-size: 0.95rem;
            color: #e2e8f0;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 7px;
        }
        .footer-links li a {
            color: #94a3b8;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-links li a:hover {
            color: #fff;
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: #64748b;
        }

        /* ========== BUTTONS & MISC ========== */
        .btn-primary-custom {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            padding: 11px 24px;
            border-radius: var(--radius-full);
            border: none;
            transition: all var(--transition-base);
            display: inline-block;
            font-size: 0.92rem;
        }
        .btn-primary-custom:hover {
            background: var(--color-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            border: 2px solid var(--color-primary);
            font-size: 0.92rem;
            transition: all var(--transition-base);
            display: inline-block;
        }
        .btn-outline-custom:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .tag-pill {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .tag-pill.blue {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }
        .tag-pill.amber {
            background: var(--color-accent-light);
            color: var(--color-accent-dark);
        }
        .tag-pill.green {
            background: var(--color-success-light);
            color: var(--color-success);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.1rem;
            }
            .featured-case-grid {
                grid-template-columns: 1fr;
            }
            .featured-case-img {
                aspect-ratio: 16 / 7;
            }
            .stats-ribbon {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }
            .nav-wrapper {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--color-surface);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 6px;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                display: none;
                z-index: 999;
                max-height: 80vh;
                overflow-y: auto;
            }
            .nav-wrapper.open {
                display: flex;
            }
            .nav-list {
                flex-direction: column;
                gap: 2px;
            }
            .nav-list li a {
                display: block;
                padding: 12px 16px;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
            }
            .mega-panel {
                position: static;
                grid-template-columns: 1fr;
                min-width: auto;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                padding: 8px 0;
                pointer-events: auto;
                display: none;
                background: transparent;
            }
            .mega-trigger.open .mega-panel {
                display: grid;
            }
            .mega-card {
                background: var(--color-bg);
            }
            .nav-toggle-btn {
                display: block;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.95rem;
            }
            .section-py {
                padding: 44px 0;
            }
            .section-heading {
                font-size: 1.5rem;
            }
            .stats-ribbon {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card .stat-num {
                font-size: 1.7rem;
            }
            .cta-section {
                padding: 34px 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .btn-outline-light-custom {
                margin-left: 0;
                margin-top: 10px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .stats-ribbon {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-card .stat-num {
                font-size: 1.4rem;
            }
            .case-card-body {
                padding: 14px 15px 16px;
            }
            .case-card-body h3 {
                font-size: 1rem;
            }
            .featured-case-info {
                padding: 22px 16px;
            }
            .featured-case-info h3 {
                font-size: 1.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .story-card {
                padding: 20px 16px;
            }
            .faq-accordion .accordion-button {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .btn-cta-primary,
            .btn-outline-light-custom {
                display: block;
                width: 100%;
                text-align: center;
                margin: 8px 0;
            }
        }