/* roulang page: index */
:root {
            --primary: #1a3352;
            --primary-light: #1e3f66;
            --primary-dark: #0f1f33;
            --accent: #c8963e;
            --accent-light: #e0b865;
            --accent-dark: #a0782a;
            --bg: #fafaf8;
            --bg-warm: #f5f2ed;
            --bg-white: #ffffff;
            --text: #1a1a1a;
            --text-soft: #4a4a4a;
            --text-muted: #7a7a7a;
            --text-light: #9ca3af;
            --border: #e5e0d8;
            --border-light: #f0ece5;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.07), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.09), 0 3px 10px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.11), 0 6px 18px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.14), 0 8px 24px rgba(0, 0, 0, 0.07);
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius: 14px;
            --radius-md: 18px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --radius-full: 50%;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1240px;
            --nav-height: 64px;
            --nav-height-mobile: 56px;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
            --card-padding: 28px;
            --card-padding-sm: 20px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            cursor: pointer;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            background: rgba(255, 255, 255, 0.98);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-xs);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--accent);
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            color: inherit;
        }
        .logo-link:hover {
            color: inherit;
            opacity: 0.9;
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }
        .nav-main a {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            border-radius: var(--radius-xs);
            font-weight: 600;
            font-size: 15px;
            color: var(--text-soft);
            transition: background var(--transition-fast), color var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: rgba(26, 51, 82, 0.05);
        }
        .nav-main a.active {
            color: var(--accent);
            background: rgba(200, 150, 62, 0.07);
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 14px;
            background: var(--primary);
            color: #fff;
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }
        .btn-nav:hover {
            background: var(--primary-light);
            color: #fff;
            box-shadow: var(--shadow);
            transform: translateY(-1px);
        }
        .btn-nav:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .mobile-menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-xs);
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--text);
            background: transparent;
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .mobile-menu-toggle:hover {
            background: var(--bg-warm);
            border-color: var(--accent);
            color: var(--accent);
        }

        @media (max-width: 1024px) {
            .nav-main {
                gap: 0;
            }
            .nav-main a {
                padding: 8px 11px;
                font-size: 14px;
            }
            .btn-nav {
                padding: 8px 14px;
                font-size: 13px;
            }
        }
        @media (max-width: 860px) {
            .nav-main {
                position: fixed;
                top: var(--nav-height-mobile);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px;
                gap: 2px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform var(--transition), opacity var(--transition);
                z-index: 999;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-main a {
                padding: 13px 16px;
                border-radius: var(--radius-xs);
                font-size: 15px;
                justify-content: center;
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-main a.active {
                background: rgba(200, 150, 62, 0.1);
                border-left: 3px solid var(--accent);
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-actions .btn-nav {
                display: none;
            }
            .header-inner {
                height: var(--nav-height-mobile);
            }
            .logo-text {
                font-size: 19px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 40%, var(--primary-light) 100%);
            min-height: 580px;
            display: flex;
            align-items: center;
            overflow: hidden;
            isolation: isolate;
        }
        .hero-bg-img {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .hero-overlay-pattern {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: radial-gradient(ellipse at 30% 50%, rgba(200, 150, 62, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(255, 255, 255, 0.04) 0%, transparent 55%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0 70px;
            color: #fff;
        }
        .hero-content .container {
            display: flex;
            flex-direction: column;
            gap: 22px;
            max-width: 800px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 7px 16px;
            border-radius: 24px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: rgba(255, 255, 255, 0.9);
            width: fit-content;
            backdrop-filter: blur(6px);
        }
        .hero-badge i {
            color: var(--accent-light);
            font-size: 14px;
        }
        .hero-title {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.5px;
            color: #fff;
            margin: 0;
        }
        .hero-title .highlight {
            color: var(--accent-light);
            position: relative;
        }
        .hero-subtitle {
            font-size: 19px;
            font-weight: 400;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.82);
            max-width: 620px;
        }
        .hero-desc {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            max-width: 680px;
            border-left: 3px solid var(--accent);
            padding-left: 18px;
            margin-top: 4px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 8px;
        }
        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 15px;
            background: var(--accent);
            color: #1a1a1a;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.35);
            letter-spacing: 0.3px;
        }
        .btn-hero-primary:hover {
            background: var(--accent-light);
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
            color: #1a1a1a;
        }
        .btn-hero-primary:active {
            transform: translateY(0);
        }
        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 15px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.45);
            transition: all var(--transition);
            letter-spacing: 0.3px;
        }
        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            box-shadow: var(--shadow);
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: auto;
            }
            .hero-content {
                padding: 48px 0 44px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-desc {
                font-size: 14px;
                padding-left: 14px;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 12px 22px;
                font-size: 14px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 10px;
            color: var(--primary-dark);
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.6;
            margin-bottom: 36px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 26px;
            }
            .section-subtitle {
                font-size: 14px;
                margin-bottom: 24px;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

        /* ========== STATS CARDS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -60px;
            position: relative;
            z-index: 10;
        }
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-md);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            border-radius: 0 0 4px 4px;
            background: var(--accent);
            transition: width var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border);
        }
        .stat-card:hover::before {
            width: 80px;
        }
        .stat-icon {
            font-size: 28px;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .stat-number {
            font-size: 38px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-muted);
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 4px;
        }
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                margin-top: -40px;
                gap: 14px;
            }
            .stat-number {
                font-size: 30px;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
                margin-top: -30px;
            }
            .stat-card {
                padding: 18px 14px;
            }
            .stat-number {
                font-size: 24px;
            }
            .stat-icon {
                font-size: 22px;
            }
        }

        /* ========== ADVANTAGE CARDS ========== */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .advantage-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid transparent;
            transition: all var(--transition);
            position: relative;
        }
        .advantage-card:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .advantage-card .adv-icon-circle {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-full);
            background: rgba(26, 51, 82, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 26px;
            color: var(--primary);
            transition: all var(--transition);
        }
        .advantage-card:hover .adv-icon-circle {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 24px rgba(26, 51, 82, 0.25);
        }
        .advantage-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary-dark);
        }
        .advantage-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .advantage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .advantage-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .advantage-card {
                padding: 24px 18px;
            }
        }

        /* ========== BRAND STORY ========== */
        .brand-story-section {
            background: var(--bg-warm);
            position: relative;
            overflow: hidden;
        }
        .brand-story-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .brand-story-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
            aspect-ratio: 4/3;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
        }
        .brand-story-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .brand-story-text h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .brand-story-text .story-intro {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-soft);
            margin-bottom: 14px;
        }
        .brand-story-text .story-detail {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
        }
        .brand-story-highlights {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
        }
        .story-highlight-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background: var(--bg-white);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }
        .story-highlight-tag i {
            color: var(--accent);
            font-size: 12px;
        }
        @media (max-width: 768px) {
            .brand-story-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .brand-story-image {
                aspect-ratio: 16/10;
                order: -1;
            }
            .brand-story-text h2 {
                font-size: 26px;
            }
            .brand-story-text .story-intro {
                font-size: 15px;
            }
        }

        /* ========== CATEGORY ENTRANCE ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: var(--border);
        }
        .category-card-img {
            aspect-ratio: 16/11;
            overflow: hidden;
            position: relative;
        }
        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .category-card:hover .category-card-img img {
            transform: scale(1.06);
        }
        .category-card-body {
            padding: 20px 18px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .category-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .category-card-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
            flex: 1;
        }
        .category-card-body .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            font-size: 14px;
            color: var(--accent);
            transition: gap var(--transition-fast);
            margin-top: 4px;
        }
        .category-card-body .cat-link:hover {
            gap: 10px;
            color: var(--accent-dark);
        }
        .category-card-body .cat-link i {
            font-size: 11px;
        }
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .category-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--border);
        }
        .news-card-img {
            aspect-ratio: 16/10;
            overflow: hidden;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .news-card:hover .news-card-img img {
            transform: scale(1.05);
        }
        .news-card-body {
            padding: 18px 16px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .news-card-date {
            font-size: 12px;
            color: var(--text-light);
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .news-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.4;
        }
        .news-card-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
            flex: 1;
        }
        .news-card-body .read-more {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-weight: 700;
            font-size: 13px;
            color: var(--accent);
            transition: gap var(--transition-fast);
            margin-top: 4px;
        }
        .news-card-body .read-more:hover {
            gap: 9px;
            color: var(--accent-dark);
        }
        @media (max-width: 1024px) {
            .news-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .news-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ========== TESTIMONIALS ========== */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 26px 22px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border);
        }
        .testimonial-card .quote-icon {
            font-size: 36px;
            color: var(--accent);
            opacity: 0.5;
            line-height: 1;
            margin-bottom: 8px;
        }
        .testimonial-card .quote-text {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-soft);
            margin-bottom: 14px;
            font-style: italic;
        }
        .testimonial-card .quote-author {
            font-weight: 700;
            font-size: 14px;
            color: var(--primary);
        }
        .testimonial-card .quote-role {
            font-size: 12px;
            color: var(--text-muted);
        }
        @media (max-width: 1024px) {
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .testimonials-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ========== PARTNERS ========== */
        .partners-strip {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 32px 40px;
            padding: 30px 0;
        }
        .partner-item {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-muted);
            letter-spacing: 1px;
            opacity: 0.7;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .partner-item:hover {
            opacity: 1;
            color: var(--primary);
        }
        @media (max-width: 520px) {
            .partners-strip {
                gap: 16px 20px;
            }
            .partner-item {
                font-size: 14px;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow);
        }
        .faq-item summary {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--primary-dark);
            transition: color var(--transition-fast);
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 16px;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item[open] summary {
            color: var(--accent);
        }
        .faq-item .faq-answer {
            padding: 0 22px 20px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
        }
        @media (max-width: 520px) {
            .faq-item summary {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 16px;
                font-size: 13px;
            }
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(150deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            color: #fff;
            text-align: center;
            padding: 60px 0 56px;
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 500px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 32px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 16px;
            background: var(--accent);
            color: #1a1a1a;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.4);
            letter-spacing: 0.3px;
        }
        .btn-cta:hover {
            background: var(--accent-light);
            box-shadow: 0 10px 32px rgba(200, 150, 62, 0.55);
            transform: translateY(-3px);
            color: #1a1a1a;
        }
        .btn-cta:active {
            transform: translateY(0);
        }
        @media (max-width: 520px) {
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section p {
                font-size: 14px;
            }
            .btn-cta {
                padding: 13px 26px;
                font-size: 14px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 28px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .footer-brand .footer-logo span {
            color: var(--accent-light);
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.3px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1/-1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== UTILITY ========== */
        .bg-warm {
            background: var(--bg-warm);
        }
        .bg-white-sec {
            background: var(--bg-white);
        }
        .text-center {
            text-align: center;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 52px;
                --section-gap-mobile: 36px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #2563eb;
            --color-primary-dark: #1d4ed8;
            --color-primary-light: #3b82f6;
            --color-accent: #d97706;
            --color-accent-light: #f59e0b;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1200px;
            --header-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: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

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

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-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 24px;
            height: 100%;
        }

        .logo {
            font-size: 1.45rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo span {
            color: var(--color-primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-main a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            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;
            letter-spacing: 0.01em;
        }

        .nav-main a:hover {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.05);
        }

        .nav-main a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(37, 99, 235, 0.08);
        }

        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px 3px 0 0;
        }

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

        .btn-outline-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.88rem;
            font-weight: 500;
            border: 1.5px solid var(--color-border);
            color: var(--color-text-secondary);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-outline-sm:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.03);
        }

        .btn-primary-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.88rem;
            font-weight: 600;
            border: none;
            color: #fff;
            background: var(--color-primary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
        }
        .btn-primary-sm:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
        }

        /* Mobile nav toggle */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 6px;
            cursor: pointer;
            line-height: 1;
        }

        @media (max-width: 1024px) {
            .nav-main {
                gap: 1px;
            }
            .nav-main a {
                padding: 8px 11px;
                font-size: 0.85rem;
            }
            .nav-actions .btn-outline-sm {
                padding: 7px 12px;
                font-size: 0.82rem;
            }
            .nav-actions .btn-primary-sm {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-main {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 12px 16px;
                gap: 2px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                width: 100%;
                padding: 12px 16px;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-main a.active {
                border-left: 3px solid var(--color-primary);
                border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            }
            .nav-actions .btn-outline-sm {
                display: none;
            }
            .header-inner {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 1.2rem;
            }
            .nav-actions .btn-primary-sm {
                padding: 6px 11px;
                font-size: 0.78rem;
            }
            .header-inner {
                padding: 0 12px;
            }
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid var(--color-border-light);
            padding: 10px 0;
        }
        .breadcrumb-inner {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-inner a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-inner a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-inner .sep {
            color: var(--color-border);
            font-size: 0.7rem;
        }
        .breadcrumb-inner .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            padding: 72px 0;
            min-height: 280px;
            display: flex;
            align-items: center;
            isolation: isolate;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 29, 58, 0.88) 0%, rgba(30, 58, 138, 0.78) 50%, rgba(37, 99, 235, 0.65) 100%);
            z-index: 0;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 1;
            color: #fff;
        }
        .page-banner .banner-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(6px);
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 14px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            margin: 0 0 12px;
            line-height: 1.25;
        }
        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            line-height: 1.7;
            margin: 0;
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 48px 0;
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .page-banner {
                padding: 36px 0;
                min-height: 180px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-desc {
                font-size: 0.88rem;
            }
        }

        /* Section styles */
        .section {
            padding: 56px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 72px 0;
        }
        .section-alt {
            background: #fff;
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }
        .section-dark {
            background: var(--color-text);
            color: #fff;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin: 0 0 10px;
            color: var(--color-text);
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-secondary);
            margin: 0 0 32px;
            max-width: 640px;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .section-subtitle {
                font-size: 0.93rem;
            }
        }

        /* Report Cards */
        .report-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        @media (max-width: 768px) {
            .report-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        .report-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;
            cursor: default;
            height: 100%;
        }
        .report-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .report-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .report-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .report-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.07);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
            width: fit-content;
            letter-spacing: 0.02em;
        }
        .report-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--color-text);
            line-height: 1.4;
            letter-spacing: -0.01em;
        }
        .report-card .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin: 0 0 14px;
            line-height: 1.6;
            flex: 1;
        }
        .report-card .card-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .report-card .card-meta i {
            font-size: 0.7rem;
        }

        /* Stats Row */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }
        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            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 {
            font-size: 2rem;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .stat-card .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }

        /* Article list */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .article-item {
            display: flex;
            gap: 18px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 18px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            align-items: flex-start;
        }
        .article-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateX(2px);
        }
        .article-item .article-thumb {
            width: 140px;
            height: 100px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
        }
        .article-item .article-info {
            flex: 1;
            min-width: 0;
        }
        .article-item .article-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-bottom: 4px;
        }
        .article-item .article-title {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 4px;
            line-height: 1.4;
            letter-spacing: -0.01em;
        }
        .article-item .article-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        @media (max-width: 600px) {
            .article-item {
                flex-direction: column;
                gap: 10px;
            }
            .article-item .article-thumb {
                width: 100%;
                height: 160px;
            }
        }

        /* Tags */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-pill {
            display: inline-block;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            background: #fff;
            border: 1.5px solid var(--color-border);
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            cursor: default;
            letter-spacing: 0.01em;
        }
        .tag-pill:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.03);
            box-shadow: var(--shadow-sm);
        }
        .tag-pill.hot {
            border-color: #f59e0b;
            color: #b45309;
            background: #fffbeb;
            font-weight: 600;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(150deg, #1a365d 0%, #1e40af 40%, #2563eb 100%);
            color: #fff;
            padding: 60px 0;
            text-align: center;
            border-radius: 0;
        }
        .cta-section h3 {
            font-size: 1.7rem;
            font-weight: 700;
            margin: 0 0 10px;
            letter-spacing: -0.02em;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            color: #1a365d;
            background: #fff;
            transition: all var(--transition-base);
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
            letter-spacing: 0.01em;
        }
        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
            background: #f8fafc;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 44px 0;
            }
            .cta-section h3 {
                font-size: 1.35rem;
            }
            .cta-section p {
                font-size: 0.93rem;
            }
        }

        /* Footer */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 28px;
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }
        .footer-logo span {
            color: #60a5fa;
        }
        .footer-brand p {
            color: #94a3b8;
            font-size: 0.85rem;
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 0.88rem;
            font-weight: 700;
            color: #e2e8f0;
            margin: 0 0 12px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #60a5fa;
        }
        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: #64748b;
        }
        .footer-bottom p {
            margin: 0;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 36px 0 20px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1B3A5C;
            --primary-light: #264f7a;
            --primary-dark: #0f2540;
            --accent: #C8963E;
            --accent-light: #d9ad5c;
            --accent-dark: #a67a2e;
            --bg: #F8F9FB;
            --surface: #FFFFFF;
            --text: #1a1a2e;
            --text-secondary: #5a6072;
            --text-muted: #8b91a0;
            --border: #e2e5ea;
            --border-light: #eef0f4;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2rem;
            --spacing-xl: 3rem;
            --spacing-2xl: 4rem;
            --spacing-3xl: 5rem;
            --font-xs: 0.75rem;
            --font-sm: 0.875rem;
            --font-base: 1rem;
            --font-md: 1.125rem;
            --font-lg: 1.25rem;
            --font-xl: 1.5rem;
            --font-2xl: 1.875rem;
            --font-3xl: 2.25rem;
            --font-4xl: 2.75rem;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            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 {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        input,
        textarea {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        /* ==================== HEADER ==================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }

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

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.6rem 0;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: var(--font-xl);
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-logo span {
            color: var(--accent);
            font-weight: 800;
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
            transition: all var(--transition);
        }

        .nav-main a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1rem;
            font-size: var(--font-sm);
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
        }

        .nav-main a:hover {
            color: var(--primary);
            background: rgba(27, 58, 92, 0.04);
        }

        .nav-main a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(27, 58, 92, 0.07);
        }

        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.2rem;
            font-size: var(--font-sm);
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            background: var(--primary);
            color: #fff;
            letter-spacing: 0.02em;
        }

        .btn-header:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow);
            transform: translateY(-1px);
        }

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

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 0.5rem;
            cursor: pointer;
            z-index: 1001;
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 3px;
            transition: all var(--transition);
            transform-origin: center;
        }

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

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

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

        @media (max-width: 1024px) {
            .header-inner {
                gap: var(--spacing);
            }
            .nav-main a {
                padding: 0.45rem 0.75rem;
                font-size: var(--font-xs);
            }
            .btn-header {
                padding: 0.45rem 0.9rem;
                font-size: var(--font-xs);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-main {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--surface);
                flex-direction: column;
                align-items: flex-start;
                padding: 5rem 1.5rem 2rem;
                gap: 0.5rem;
                box-shadow: var(--shadow-lg);
                transition: right var(--transition-slow);
                z-index: 1000;
                overflow-y: auto;
            }
            .nav-main.open {
                right: 0;
            }
            .nav-main a {
                width: 100%;
                padding: 0.75rem 1rem;
                font-size: var(--font-base);
                border-radius: var(--radius);
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-main a.active {
                border-left: 3px solid var(--accent);
                border-radius: 0 var(--radius) var(--radius) 0;
            }
            .header-actions {
                margin-left: auto;
            }
            .btn-header {
                padding: 0.5rem 1rem;
                font-size: var(--font-xs);
            }
            .menu-overlay {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: rgba(0, 0, 0, 0.4);
                z-index: 999;
                opacity: 0;
                pointer-events: none;
                transition: opacity var(--transition);
            }
            .menu-overlay.show {
                opacity: 1;
                pointer-events: auto;
            }
        }

        @media (max-width: 520px) {
            .header-logo {
                font-size: var(--font-lg);
            }
            .container {
                padding: 0 var(--spacing);
            }
            .header-inner {
                padding: 0.5rem 0;
            }
            .btn-header {
                padding: 0.4rem 0.75rem;
                font-size: 0.7rem;
                gap: 0.2rem;
            }
        }

        /* ==================== PAGE BANNER ==================== */
        .page-banner {
            position: relative;
            padding: var(--spacing-3xl) 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 58, 92, 0.88) 0%, rgba(15, 37, 64, 0.82) 40%, rgba(27, 58, 92, 0.75) 100%);
            z-index: 1;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
        }

        .banner-content {
            text-align: center;
            color: #fff;
        }

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }

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

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

        .banner-breadcrumb .separator {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.7rem;
        }

        .banner-breadcrumb .current {
            color: var(--accent-light);
            font-weight: 500;
        }

        .banner-content h1 {
            font-size: var(--font-4xl);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing);
            line-height: 1.25;
        }

        .banner-content h1 span {
            color: var(--accent-light);
        }

        .banner-content .banner-sub {
            font-size: var(--font-md);
            color: rgba(255, 255, 255, 0.8);
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 260px;
                padding: var(--spacing-2xl) 0;
            }
            .banner-content h1 {
                font-size: var(--font-2xl);
            }
            .banner-content .banner-sub {
                font-size: var(--font-base);
            }
        }

        @media (max-width: 520px) {
            .page-banner {
                min-height: 220px;
                padding: var(--spacing-xl) 0;
            }
            .banner-content h1 {
                font-size: var(--font-xl);
            }
            .banner-content .banner-sub {
                font-size: var(--font-sm);
            }
            .banner-breadcrumb {
                font-size: var(--font-xs);
            }
        }

        /* ==================== SECTIONS ==================== */
        .section {
            padding: var(--spacing-3xl) 0;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-2xl);
        }

        .section-label {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            background: rgba(200, 150, 62, 0.1);
            padding: 0.35rem 1rem;
            border-radius: 20px;
            margin-bottom: var(--spacing-sm);
        }

        .section-header h2 {
            font-size: var(--font-3xl);
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }

        .section-header h2 span {
            color: var(--accent);
        }

        .section-header .section-desc {
            font-size: var(--font-md);
            color: var(--text-secondary);
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-header h2 {
                font-size: var(--font-2xl);
            }
            .section-header .section-desc {
                font-size: var(--font-base);
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: var(--spacing-xl) 0;
            }
            .section-header h2 {
                font-size: var(--font-xl);
            }
            .section-header {
                margin-bottom: var(--spacing-lg);
            }
        }

        /* ==================== SERVICE OVERVIEW ==================== */
        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-2xl);
            align-items: center;
        }

        .overview-text h3 {
            font-size: var(--font-2xl);
            font-weight: 700;
            color: var(--text);
            margin-bottom: var(--spacing);
            line-height: 1.3;
        }

        .overview-text p {
            color: var(--text-secondary);
            margin-bottom: var(--spacing);
            line-height: 1.8;
            font-size: var(--font-base);
        }

        .overview-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing);
            margin-top: var(--spacing-lg);
        }

        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: var(--spacing-md);
            text-align: center;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

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

        .stat-number {
            font-size: var(--font-3xl);
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
        }

        .stat-number span {
            color: var(--accent);
        }

        .stat-label {
            font-size: var(--font-xs);
            color: var(--text-muted);
            margin-top: 0.35rem;
            letter-spacing: 0.02em;
        }

        .overview-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4/3;
        }

        .overview-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .overview-image:hover img {
            transform: scale(1.04);
        }

        @media (max-width: 768px) {
            .overview-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .overview-image {
                order: -1;
                aspect-ratio: 16/10;
            }
            .overview-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: var(--spacing-sm);
            }
            .stat-number {
                font-size: var(--font-2xl);
            }
            .stat-card {
                padding: var(--spacing);
            }
            .overview-text h3 {
                font-size: var(--font-xl);
            }
        }

        @media (max-width: 520px) {
            .overview-stats {
                grid-template-columns: 1fr 1fr;
            }
            .stat-number {
                font-size: var(--font-xl);
            }
            .stat-card {
                padding: var(--spacing-sm);
            }
        }

        /* ==================== CORE SERVICES ==================== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

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

        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .service-card-image {
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
        }

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

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

        .service-card-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(27, 58, 92, 0.08);
            color: var(--primary);
            font-size: 1.2rem;
            margin-bottom: var(--spacing-sm);
            transition: all var(--transition);
        }

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

        .service-card h4 {
            font-size: var(--font-lg);
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text);
            line-height: 1.3;
        }

        .service-card p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: var(--spacing);
        }

        .service-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--accent);
            transition: all var(--transition);
            margin-top: auto;
        }

        .service-card .card-link:hover {
            color: var(--accent-dark);
            gap: 0.6rem;
        }

        .service-card .card-link i {
            font-size: 0.7rem;
            transition: transform var(--transition);
        }

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

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

        @media (max-width: 768px) {
            .services-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing);
            }
            .service-card-body {
                padding: var(--spacing);
            }
            .service-card h4 {
                font-size: var(--font-base);
            }
        }

        @media (max-width: 520px) {
            .services-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }
            .service-card-image {
                aspect-ratio: 16/9;
            }
        }

        /* ==================== SERVICE PROCESS ==================== */
        .process-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: var(--spacing-lg) var(--spacing);
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            z-index: 1;
        }

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

        .process-step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: var(--font-xl);
            font-weight: 800;
            margin-bottom: var(--spacing);
            letter-spacing: -0.01em;
            transition: all var(--transition);
        }

        .process-step:hover .process-step-number {
            background: var(--accent);
            box-shadow: 0 0 0 8px rgba(200, 150, 62, 0.15);
        }

        .process-step h4 {
            font-size: var(--font-base);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.4rem;
        }

        .process-step p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
        }

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

        @media (max-width: 520px) {
            .process-timeline {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .process-step {
                padding: var(--spacing) var(--spacing-md);
            }
        }

        /* ==================== FEATURES ==================== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }

        .feature-item {
            display: flex;
            gap: var(--spacing);
            padding: var(--spacing-md);
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            align-items: flex-start;
        }

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

        .feature-icon {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            border-radius: var(--radius);
            background: rgba(200, 150, 62, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent);
            transition: all var(--transition);
        }

        .feature-item:hover .feature-icon {
            background: var(--accent);
            color: #fff;
        }

        .feature-info h4 {
            font-size: var(--font-base);
            font-weight: 700;
            margin-bottom: 0.3rem;
            color: var(--text);
        }

        .feature-info p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.65;
        }

        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }
            .feature-item {
                padding: var(--spacing);
            }
        }

        /* ==================== FAQ ==================== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md) var(--spacing-lg);
            background: none;
            font-size: var(--font-base);
            font-weight: 600;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            transition: all var(--transition);
            gap: var(--spacing);
            line-height: 1.5;
        }

        .faq-question:hover {
            color: var(--primary);
            background: rgba(27, 58, 92, 0.02);
        }

        .faq-question i {
            flex-shrink: 0;
            color: var(--text-muted);
            font-size: 0.8rem;
            transition: transform var(--transition);
        }

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

        .faq-item.open .faq-question {
            color: var(--primary);
            background: rgba(27, 58, 92, 0.03);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 var(--spacing-lg) var(--spacing-md);
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.75;
        }

        @media (max-width: 520px) {
            .faq-question {
                padding: var(--spacing) var(--spacing-md);
                font-size: var(--font-sm);
            }
            .faq-answer-inner {
                padding: 0 var(--spacing-md) var(--spacing);
                font-size: var(--font-xs);
            }
        }

        /* ==================== CTA ==================== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: var(--spacing-3xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.08);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: var(--font-3xl);
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing);
            letter-spacing: -0.02em;
        }

        .cta-section h2 span {
            color: var(--accent-light);
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: var(--font-md);
            max-width: 550px;
            margin: 0 auto var(--spacing-lg);
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            gap: var(--spacing);
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            font-size: var(--font-base);
            font-weight: 700;
            border-radius: var(--radius);
            background: var(--accent);
            color: #fff;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.35);
        }

        .btn-primary:hover {
            background: var(--accent-light);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            font-size: var(--font-base);
            font-weight: 600;
            border-radius: var(--radius);
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        @media (max-width: 520px) {
            .cta-section h2 {
                font-size: var(--font-xl);
            }
            .cta-section p {
                font-size: var(--font-sm);
            }
            .btn-primary,
            .btn-outline-light {
                padding: 0.7rem 1.5rem;
                font-size: var(--font-sm);
                width: 100%;
                justify-content: center;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
        }

        /* ==================== FOOTER ==================== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
            border-top: 4px solid var(--accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }

        .footer-brand .footer-logo {
            font-size: var(--font-xl);
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.01em;
        }

        .footer-brand .footer-logo span {
            color: var(--accent-light);
        }

        .footer-brand p {
            font-size: var(--font-sm);
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing);
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul li a {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.6);
            transition: all var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-lg);
            text-align: center;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-lg);
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }
            .footer-brand {
                grid-column: auto;
            }
            .site-footer {
                padding: var(--spacing-xl) 0 var(--spacing);
            }
        }

        /* ==================== UTILS ==================== */
        .text-accent {
            color: var(--accent);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Focus visible */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

/* roulang page: category2 */
:root {
            --color-primary: #C8963E;
            --color-primary-dark: #A67A2E;
            --color-primary-light: #E0B85C;
            --color-primary-bg: #FDF6EB;
            --color-secondary: #1B2A4A;
            --color-secondary-light: #2D3F66;
            --color-accent: #E85D3F;
            --color-bg: #F8F7F4;
            --color-surface: #FFFFFF;
            --color-text: #1a1a1a;
            --color-text-strong: #0d0d0d;
            --color-text-weak: #6b7280;
            --color-text-muted: #9ca3af;
            --color-border: #e5e7eb;
            --color-border-light: #f0f0ed;
            --color-success: #10B981;
            --color-warning: #F59E0B;
            --color-danger: #EF4444;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50%;
            --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 16px 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-card-hover: 0 12px 36px rgba(0, 0, 0, 0.13);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 80px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --nav-height: 64px;
            --max-width: 1200px;
            --max-width-narrow: 900px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            letter-spacing: 0.01em;
        }

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

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        h1 {
            font-size: 2.5rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        .container-narrow {
            max-width: var(--max-width-narrow);
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-base);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .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);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
            height: 100%;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
            z-index: 1001;
        }
        .logo-text {
            font-size: 1.55rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-secondary);
            white-space: nowrap;
            line-height: 1;
        }
        .logo-text span {
            color: var(--color-primary);
            font-weight: 900;
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: var(--radius-full);
            background: var(--color-primary);
            display: inline-block;
            margin-left: 2px;
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                transform: scale(1);
                opacity: 1;
            }
            50% {
                transform: scale(1.7);
                opacity: 0.5;
            }
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            flex-wrap: nowrap;
        }
        .nav-main a {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
        }
        .nav-main a:hover {
            color: var(--color-primary);
            background: var(--color-primary-bg);
        }
        .nav-main a.active {
            color: var(--color-primary-dark);
            background: var(--color-primary-bg);
            font-weight: 700;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }
        .search-trigger {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            background: var(--color-bg);
            color: var(--color-text-weak);
            font-size: 1.1rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            cursor: pointer;
            margin-left: var(--spacing-sm);
        }
        .search-trigger:hover {
            background: var(--color-primary-bg);
            color: var(--color-primary);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .hamburger:hover {
            background: var(--color-bg);
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--color-secondary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            padding: var(--spacing-4xl) 0;
            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(27, 42, 74, 0.88) 0%, rgba(27, 42, 74, 0.65) 50%, rgba(200, 150, 62, 0.35) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner .banner-content {
            max-width: 700px;
        }
        .page-banner .banner-tag {
            display: inline-block;
            background: var(--color-primary);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: var(--spacing-md);
        }
        .page-banner h1 {
            color: #ffffff;
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: var(--spacing-md);
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
            letter-spacing: -0.02em;
        }
        .page-banner .banner-desc {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.15rem;
            line-height: 1.8;
            max-width: 550px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: var(--spacing-lg);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .sep {
            font-size: 0.7rem;
            opacity: 0.6;
        }

        /* Section */
        .section {
            padding: var(--spacing-3xl) 0;
        }
        .section-sm {
            padding: var(--spacing-2xl) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
        }
        .section-header h2 {
            font-size: 2rem;
            margin-bottom: var(--spacing-sm);
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }
        .section-header p {
            color: var(--color-text-weak);
            font-size: 1.05rem;
            max-width: 600px;
            margin: var(--spacing-md) auto 0;
        }
        .section-header.left-align {
            text-align: left;
        }
        .section-header.left-align h2::after {
            left: 0;
            transform: none;
        }

        /* Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: var(--spacing-xl);
        }
        .cards-grid.tight {
            gap: var(--spacing-lg);
        }
        .cards-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .cards-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .cards-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        /* Card */
        .card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .card:hover .card-img {
            transform: scale(1.04);
        }
        .card-body {
            padding: var(--spacing-lg);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: var(--spacing-sm);
            font-weight: 700;
            line-height: 1.4;
        }
        .card-body p {
            color: var(--color-text-weak);
            font-size: 0.95rem;
            line-height: 1.65;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
            font-size: 0.85rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .tag-hot {
            background: #FEF2F2;
            color: #DC2626;
        }
        .tag-live {
            background: #ECFDF5;
            color: #059669;
            animation: live-pulse 1.5s ease-in-out infinite;
        }
        @keyframes live-pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.55;
            }
        }
        .tag-upcoming {
            background: #EFF6FF;
            color: #2563EB;
        }
        .tag-ended {
            background: #F3F4F6;
            color: #6B7280;
        }

        /* Featured Event Card */
        .featured-event {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 0;
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
        }
        .featured-event:hover {
            box-shadow: var(--shadow-xl);
        }
        .featured-event .fe-img-wrap {
            position: relative;
            overflow: hidden;
            min-height: 320px;
        }
        .featured-event .fe-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .featured-event:hover .fe-img-wrap img {
            transform: scale(1.05);
        }
        .featured-event .fe-badge {
            position: absolute;
            top: var(--spacing-md);
            left: var(--spacing-md);
            background: var(--color-accent);
            color: #fff;
            padding: 8px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.9rem;
            z-index: 2;
            letter-spacing: 0.02em;
        }
        .featured-event .fe-content {
            padding: var(--spacing-2xl);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-event .fe-content h3 {
            font-size: 1.6rem;
            margin-bottom: var(--spacing-md);
        }
        .featured-event .fe-content p {
            color: var(--color-text-weak);
            line-height: 1.75;
            margin-bottom: var(--spacing-lg);
        }
        .featured-event .fe-stats {
            display: flex;
            gap: var(--spacing-xl);
            flex-wrap: wrap;
        }
        .fe-stat-item {
            text-align: center;
        }
        .fe-stat-item .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
        }
        .fe-stat-item .stat-label {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-top: 4px;
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 32px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--color-border);
            border-radius: 1px;
        }
        .timeline-item {
            position: relative;
            padding-bottom: var(--spacing-xl);
            padding-left: var(--spacing-lg);
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: var(--radius-full);
            background: var(--color-primary);
            border: 2px solid #fff;
            box-shadow: var(--shadow-sm);
            z-index: 1;
        }
        .timeline-item .tl-date {
            font-size: 0.85rem;
            color: var(--color-primary-dark);
            font-weight: 700;
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }
        .timeline-item .tl-title {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 4px;
        }
        .timeline-item .tl-desc {
            color: var(--color-text-weak);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* Stats Row */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }
        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: center;
            border: 1px solid var(--color-border-light);
            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 {
            font-size: 2rem;
            margin-bottom: var(--spacing-sm);
        }
        .stat-card .stat-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-secondary);
            line-height: 1;
        }
        .stat-card .stat-label {
            color: var(--color-text-weak);
            font-size: 0.9rem;
            margin-top: var(--spacing-xs);
        }

        /* Ranking List */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            background: var(--color-surface);
            padding: var(--spacing-md) var(--spacing-lg);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-xs);
        }
        .ranking-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }
        .rank-num {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1rem;
            flex-shrink: 0;
            background: var(--color-bg);
            color: var(--color-text-weak);
        }
        .ranking-item.top-1 .rank-num {
            background: #FFD700;
            color: #7C5E00;
        }
        .ranking-item.top-2 .rank-num {
            background: #C0C0C0;
            color: #4a4a4a;
        }
        .ranking-item.top-3 .rank-num {
            background: #CD7F32;
            color: #fff;
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-info .rank-name {
            font-weight: 700;
            font-size: 0.95rem;
        }
        .rank-info .rank-detail {
            font-size: 0.8rem;
            color: var(--color-text-weak);
        }
        .rank-score {
            font-weight: 700;
            color: var(--color-primary-dark);
            font-size: 1rem;
            flex-shrink: 0;
        }

        /* News List */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .news-item {
            display: flex;
            gap: var(--spacing-lg);
            background: var(--color-surface);
            padding: var(--spacing-lg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-xs);
            align-items: flex-start;
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }
        .news-item .news-thumb {
            width: 180px;
            height: 120px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
        }
        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-content h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .news-item .news-content p {
            color: var(--color-text-weak);
            font-size: 0.9rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: var(--spacing-sm);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-xs);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: var(--spacing-lg) var(--spacing-xl);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-text-strong);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            transition: color var(--transition-fast);
            cursor: pointer;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            font-size: 1.3rem;
            color: var(--color-primary);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            font-weight: 400;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 var(--spacing-xl);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 var(--spacing-xl) var(--spacing-lg);
        }
        .faq-answer p {
            color: var(--color-text-weak);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
            padding: var(--spacing-4xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 250px;
            height: 250px;
            border-radius: var(--radius-full);
            background: rgba(200, 150, 62, 0.12);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 180px;
            height: 180px;
            border-radius: var(--radius-full);
            background: rgba(200, 150, 62, 0.08);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: var(--spacing-md);
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 550px;
            margin: 0 auto var(--spacing-xl);
            line-height: 1.7;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-sm);
            padding: 13px 28px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.35);
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            background: transparent;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            border: 2px solid var(--color-primary);
            color: var(--color-primary);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.88rem;
            border-radius: 22px;
        }
        .btn-group {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            justify-content: center;
        }

        /* Footer */
        .site-footer {
            background: var(--color-secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
            margin-top: auto;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
            padding-bottom: var(--spacing-2xl);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.01em;
        }
        .footer-logo span {
            color: var(--color-primary-light);
        }
        .footer-brand p {
            line-height: 1.7;
            font-size: 0.88rem;
            opacity: 0.75;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: var(--spacing-md);
            font-weight: 700;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary-light);
        }
        .footer-bottom {
            text-align: center;
            padding-top: var(--spacing-lg);
            font-size: 0.82rem;
            opacity: 0.6;
            line-height: 1.6;
        }

        /* Back to top */
        .back-to-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            z-index: 999;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-full);
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-lg);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-to-top:hover {
            background: var(--color-primary-dark);
            transform: translateY(-3px);
            box-shadow: var(--shadow-xl);
        }

        /* Highlight box */
        .highlight-box {
            background: var(--color-primary-bg);
            border-left: 4px solid var(--color-primary);
            padding: var(--spacing-lg) var(--spacing-xl);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: var(--spacing-lg) 0;
        }
        .highlight-box p {
            color: var(--color-text);
            font-weight: 500;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .cards-grid.cols-3,
            .cards-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-event {
                grid-template-columns: 1fr;
            }
            .featured-event .fe-img-wrap {
                min-height: 240px;
                max-height: 300px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            h1 {
                font-size: 2.1rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .page-banner {
                min-height: 280px;
                padding: var(--spacing-2xl) 0;
            }
            .page-banner h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 56px;
            }
            .hamburger {
                display: flex;
            }
            .nav-main {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(14px);
                -webkit-backdrop-filter: blur(14px);
                flex-direction: column;
                padding: var(--spacing-lg);
                gap: var(--spacing-xs);
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--color-border);
                transform: translateY(-110%);
                opacity: 0;
                transition: all var(--transition-base);
                z-index: 999;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-main a {
                width: 100%;
                text-align: center;
                padding: 12px;
                font-size: 1rem;
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-main a.active {
                border-radius: var(--radius-md);
            }
            .search-trigger {
                margin-left: auto;
                margin-right: var(--spacing-sm);
            }
            .cards-grid {
                grid-template-columns: 1fr !important;
            }
            .cards-grid.cols-2,
            .cards-grid.cols-3,
            .cards-grid.cols-4 {
                grid-template-columns: 1fr !important;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-md);
            }
            .news-item {
                flex-direction: column;
            }
            .news-item .news-thumb {
                width: 100%;
                height: 180px;
            }
            .featured-event .fe-content {
                padding: var(--spacing-lg);
            }
            .featured-event .fe-content h3 {
                font-size: 1.3rem;
            }
            .featured-event .fe-stats {
                gap: var(--spacing-lg);
            }
            .fe-stat-item .stat-num {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .page-banner {
                min-height: 240px;
                padding: var(--spacing-xl) 0;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .timeline {
                padding-left: 24px;
            }
            .timeline::before {
                left: 8px;
            }
            .timeline-item::before {
                left: -20px;
                width: 10px;
                height: 10px;
            }
            .ranking-item {
                padding: var(--spacing-sm) var(--spacing-md);
                gap: var(--spacing-sm);
            }
            .rank-num {
                width: 28px;
                height: 28px;
                font-size: 0.85rem;
            }
            .stat-card .stat-value {
                font-size: 1.6rem;
            }
            .back-to-top {
                bottom: 16px;
                right: 16px;
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 var(--spacing-md);
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .stat-card {
                padding: var(--spacing-md);
            }
            .stat-card .stat-value {
                font-size: 1.4rem;
            }
            .stat-card .stat-label {
                font-size: 0.78rem;
            }
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .page-banner .banner-desc {
                font-size: 0.88rem;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn-group .btn {
                width: 100%;
                justify-content: center;
            }
            .faq-question {
                padding: var(--spacing-md);
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 var(--spacing-md);
            }
            .faq-item.open .faq-answer {
                padding: 0 var(--spacing-md) var(--spacing-md);
            }
            .news-item .news-thumb {
                height: 140px;
            }
            .ranking-item {
                flex-wrap: wrap;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1a56db;
            --color-primary-dark: #1241a8;
            --color-primary-light: #3b82f6;
            --color-accent: #f59e0b;
            --color-accent-dark: #d97706;
            --color-bg: #f8fafc;
            --color-white: #ffffff;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-red: #ef4444;
            --color-green: #10b981;
            --color-orange: #f97316;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.09), 0 4px 8px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.11), 0 6px 12px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 24px 56px rgba(0, 0, 0, 0.14), 0 8px 16px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --max-width: 1200px;
            --nav-height: 64px;
            --header-total-height: 120px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-total-height) + 20px);
            -webkit-text-size-adjust: 100%;
            text-size-adjust: 100%;
        }

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

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

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

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 2px solid var(--color-border);
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition);
        }

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

        .header-top {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            padding: 6px 0;
            font-size: 13px;
            color: #cbd5e1;
        }

        .header-top .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .header-top-left {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .header-top-left span {
            display: flex;
            align-items: center;
            gap: 5px;
            white-space: nowrap;
        }

        .header-top-left .dot-live {
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #10b981;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
            }
        }

        .header-top-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-top-right a {
            color: #cbd5e1;
            font-size: 13px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .header-top-right a:hover {
            color: #ffffff;
        }

        .header-main {
            padding: 0;
        }

        .header-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            flex-shrink: 0;
            gap: 8px;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

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

        .nav-main {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-main a {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            border-radius: var(--radius);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav-main a:hover {
            color: var(--color-primary);
            background: #f0f5ff;
        }

        .nav-main a.active {
            color: var(--color-primary);
            font-weight: 700;
            background: #eef4ff;
        }

        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }

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

        .btn-search-toggle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-fast);
            color: var(--color-text-secondary);
            font-size: 16px;
            background: var(--color-white);
        }

        .btn-search-toggle:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: #f8faff;
        }

        .btn-subscribe-sm {
            padding: 9px 18px;
            border-radius: 20px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-subscribe-sm:hover {
            background: var(--color-primary-dark);
            box-shadow: var(--shadow);
            transform: translateY(-1px);
        }

        .btn-mobile-menu {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 20px;
            color: var(--color-text);
            background: var(--color-white);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .btn-mobile-menu:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        @media (max-width: 1024px) {
            .btn-mobile-menu {
                display: flex;
            }
            .nav-main {
                position: fixed;
                top: calc(var(--header-total-height) - 36px);
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                gap: 0;
                padding: 12px 16px;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all var(--transition);
                z-index: 999;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-main a {
                width: 100%;
                padding: 13px 16px;
                border-radius: var(--radius-sm);
                font-size: 16px;
            }
            .nav-main a.active::after {
                display: none;
            }
            .header-actions .btn-subscribe-sm {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .header-top {
                font-size: 11px;
                padding: 4px 0;
            }
            .header-top-left {
                gap: 8px;
            }
            .header-top-right {
                gap: 8px;
            }
            .header-top-right a {
                font-size: 11px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
        }

        /* ========== SECTION TITLES ========== */
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header .section-label {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            margin-bottom: 12px;
            background: #eef4ff;
            color: var(--color-primary);
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .section-header .section-subtitle {
            font-size: 16px;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section-header h2 {
                font-size: 26px;
            }
            .section-header .section-subtitle {
                font-size: 14px;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            padding: 70px 0;
            background: linear-gradient(135deg, #0f172a 0%, #1a2744 40%, #1e3a5f 100%);
            overflow: hidden;
            color: #fff;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--color-bg), transparent);
            z-index: 1;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .page-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: color var(--transition-fast);
        }

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

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

        .page-banner .breadcrumb .current {
            color: #fff;
            font-weight: 600;
        }

        .page-banner h1 {
            font-size: 42px;
            font-weight: 900;
            letter-spacing: -1px;
            margin-bottom: 14px;
            line-height: 1.2;
        }

        .page-banner .banner-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 650px;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .banner-search-wrap {
            display: flex;
            align-items: center;
            gap: 0;
            max-width: 500px;
            width: 100%;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 30px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            overflow: hidden;
            backdrop-filter: blur(4px);
        }

        .banner-search-wrap input {
            flex: 1;
            padding: 14px 20px;
            color: #fff;
            font-size: 15px;
            background: transparent;
            border: none;
            outline: none;
        }

        .banner-search-wrap input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .banner-search-wrap button {
            padding: 14px 24px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            font-size: 15px;
            white-space: nowrap;
            border-radius: 0 30px 30px 0;
        }

        .banner-search-wrap button:hover {
            background: var(--color-primary-dark);
        }

        .banner-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
            justify-content: center;
        }

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

        .banner-stat-item .stat-num {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
        }

        .banner-stat-item .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 48px 0;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner .banner-desc {
                font-size: 15px;
            }
            .banner-stats-row {
                gap: 20px;
            }
            .banner-stat-item .stat-num {
                font-size: 22px;
            }
            .banner-search-wrap input {
                padding: 12px 16px;
                font-size: 14px;
            }
            .banner-search-wrap button {
                padding: 12px 18px;
                font-size: 14px;
            }
        }

        /* ========== MAIN CONTENT AREA ========== */
        .content-section {
            padding: 56px 0;
        }

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

        /* ========== FEATURED ARTICLE ========== */
        .featured-article-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--color-white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: box-shadow var(--transition);
            border: 1px solid var(--color-border-light);
            margin-bottom: 40px;
        }

        .featured-article-card:hover {
            box-shadow: var(--shadow-lg);
        }

        .featured-article-card .card-image {
            position: relative;
            min-height: 320px;
            overflow: hidden;
        }

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

        .featured-article-card:hover .card-image img {
            transform: scale(1.04);
        }

        .featured-article-card .card-image .tag-floating {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            background: var(--color-red);
            color: #fff;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .featured-article-card .card-body {
            padding: 28px 28px 28px 8px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-article-card .card-meta {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 8px;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .featured-article-card .card-title {
            font-size: 24px;
            font-weight: 800;
            color: var(--color-text);
            line-height: 1.35;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }

        .featured-article-card .card-excerpt {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .featured-article-card .btn-read {
            align-self: flex-start;
            padding: 10px 22px;
            border-radius: 25px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .featured-article-card .btn-read:hover {
            background: var(--color-primary-dark);
            box-shadow: var(--shadow);
            transform: translateY(-1px);
        }

        @media (max-width: 768px) {
            .featured-article-card {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .featured-article-card .card-image {
                min-height: 220px;
                max-height: 260px;
            }
            .featured-article-card .card-body {
                padding: 24px;
            }
            .featured-article-card .card-title {
                font-size: 20px;
            }
        }

        /* ========== NEWS GRID ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 40px;
        }

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

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

        .news-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e2e8f0;
        }

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

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

        .news-card .card-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 700;
            background: var(--color-primary);
            color: #fff;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .news-card .card-tag.tag-hot {
            background: var(--color-red);
        }
        .news-card .card-tag.tag-trend {
            background: var(--color-orange);
        }
        .news-card .card-tag.tag-new {
            background: var(--color-green);
        }

        .news-card .card-content {
            padding: 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .card-date {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-bottom: 6px;
        }

        .news-card .card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.45;
            margin-bottom: 8px;
            letter-spacing: -0.2px;
            flex: 1;
        }

        .news-card .card-summary {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .news-card .card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
            cursor: pointer;
        }

        .news-card .card-link:hover {
            gap: 8px;
            color: var(--color-primary-dark);
        }

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

        @media (max-width: 520px) {
            .news-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== TOPIC TAGS ========== */
        .topics-section {
            background: var(--color-white);
            border-radius: var(--radius-xl);
            padding: 32px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            margin-bottom: 40px;
        }

        .topics-section h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
            letter-spacing: -0.3px;
        }

        .topics-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .topic-tag {
            padding: 8px 16px;
            border-radius: 22px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
            background: var(--color-bg);
            white-space: nowrap;
        }

        .topic-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: #f0f5ff;
            transform: translateY(-1px);
        }

        .topic-tag.tag-lg {
            padding: 10px 20px;
            font-size: 15px;
            font-weight: 600;
            border-color: var(--color-primary-light);
            color: var(--color-primary);
            background: #eef4ff;
        }

        /* ========== DEEP ANALYSIS ========== */
        .analysis-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 40px;
        }

        .analysis-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }

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

        .analysis-card .card-img-wrap {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #e2e8f0;
        }

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

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

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

        .analysis-card .card-label {
            font-size: 11px;
            font-weight: 700;
            color: var(--color-accent-dark);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 6px;
        }

        .analysis-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
            letter-spacing: -0.2px;
        }

        .analysis-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

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

        @media (max-width: 1024px) and (min-width: 769px) {
            .analysis-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ========== DATA BRIEF ========== */
        .data-brief-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 40px;
        }

        .data-brief-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .data-brief-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
        }

        .data-brief-card:nth-child(2)::before {
            background: linear-gradient(90deg, var(--color-accent), #fbbf24);
        }
        .data-brief-card:nth-child(3)::before {
            background: linear-gradient(90deg, var(--color-green), #34d399);
        }
        .data-brief-card:nth-child(4)::before {
            background: linear-gradient(90deg, #8b5cf6, #a78bfa);
        }

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

        .data-brief-card .brief-num {
            font-size: 36px;
            font-weight: 900;
            color: var(--color-text);
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 6px;
        }

        .data-brief-card .brief-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-secondary);
        }

        .data-brief-card .brief-label {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .data-brief-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .data-brief-card .brief-num {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .data-brief-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* ========== SUBSCRIBE CTA ========== */
        .subscribe-cta {
            background: linear-gradient(135deg, #1a56db 0%, #1241a8 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            margin-bottom: 40px;
            position: relative;
            overflow: hidden;
        }

        .subscribe-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }

        .subscribe-cta>* {
            position: relative;
            z-index: 1;
        }

        .subscribe-cta h3 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: -0.5px;
        }

        .subscribe-cta p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 500px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }

        .subscribe-form {
            display: flex;
            gap: 0;
            max-width: 480px;
            margin: 0 auto;
            border-radius: 30px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .subscribe-form input {
            flex: 1;
            padding: 14px 20px;
            font-size: 15px;
            color: var(--color-text);
            background: #fff;
            border: none;
            outline: none;
        }

        .subscribe-form input::placeholder {
            color: #94a3b8;
        }

        .subscribe-form button {
            padding: 14px 26px;
            font-weight: 700;
            font-size: 15px;
            background: var(--color-accent);
            color: #1e293b;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .subscribe-form button:hover {
            background: #fbbf24;
        }

        @media (max-width: 520px) {
            .subscribe-cta {
                padding: 32px 20px;
            }
            .subscribe-cta h3 {
                font-size: 22px;
            }
            .subscribe-form {
                flex-direction: column;
                border-radius: var(--radius);
                gap: 0;
            }
            .subscribe-form input {
                border-radius: var(--radius) var(--radius) 0 0;
                text-align: center;
            }
            .subscribe-form button {
                border-radius: 0 0 var(--radius) var(--radius);
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            margin-bottom: 40px;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition);
            cursor: pointer;
        }

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

        .faq-item .faq-question {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 16px;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            letter-spacing: -0.2px;
        }

        .faq-item .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text-secondary);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

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

        .faq-item .faq-answer {
            padding: 0 22px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition);
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            padding: 0 22px 18px;
            max-height: 500px;
        }

        /* ========== PAGINATION ========== */
        .pagination-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .pagination-row .page-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
            background: var(--color-white);
        }

        .pagination-row .page-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: #f8faff;
        }
        .pagination-row .page-btn.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 700;
        }
        .pagination-row .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
            cursor: default;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 20px;
            font-size: 14px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-logo {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .footer-logo span {
            color: #3b82f6;
        }

        .footer-brand p {
            color: #94a3b8;
            line-height: 1.7;
            font-size: 13px;
            max-width: 280px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 13px;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            text-align: center;
            font-size: 12px;
            color: #64748b;
        }

        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

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

        /* ========== BACK TO TOP ========== */
        .back-to-top {
            position: fixed;
            bottom: 32px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition);
            z-index: 900;
            border: none;
        }

        .back-to-top.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .back-to-top:hover {
            background: var(--color-primary-dark);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        /* ========== UTILITY ANIMATIONS ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-in-up {
            animation: fadeInUp 0.5s ease forwards;
        }