/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a4d8f;
            --primary-light: #2a6fc9;
            --primary-dark: #0f3460;
            --primary-gradient: linear-gradient(135deg, #1a4d8f 0%, #2a6fc9 100%);
            --secondary: #e8a838;
            --secondary-light: #f0c86a;
            --secondary-dark: #c88a1e;
            --accent: #22b573;
            --bg-light: #f7f9fc;
            --bg-white: #ffffff;
            --bg-dark: #0d1b2a;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #8a9aaa;
            --text-light: #f0f4f8;
            --border-color: #e2e8f0;
            --border-light: #f0f2f5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
            --shadow-glow: 0 0 40px rgba(42,111,201,0.20);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 72px;
            --container-max: 1200px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        a:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-primary); }

        /* ===== 容器 ===== */
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; width: 100%; }
        .container-narrow { max-width: 880px; margin: 0 auto; padding: 0 24px; }

        /* ===== 通用板块间距 ===== */
        .section { padding: 80px 0; }
        .section-sm { padding: 48px 0; }
        .section-lg { padding: 100px 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { font-size: 2rem; font-weight: 700; color: var(--text-primary); margin-bottom: 12px; letter-spacing: -0.02em; }
        .section-title p { font-size: 1.05rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto; line-height: 1.6; }
        .section-title .title-tag { display: inline-block; background: rgba(42,111,201,0.10); color: var(--primary-light); font-size: 0.8rem; font-weight: 600; padding: 4px 14px; border-radius: 20px; letter-spacing: 0.5px; margin-bottom: 12px; text-transform: uppercase; }

        /* ===== 玻璃导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--nav-height);
            background: rgba(255,255,255,0.75);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-bottom: 1px solid rgba(255,255,255,0.30);
            box-shadow: 0 1px 20px rgba(0,0,0,0.06);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255,255,255,0.95);
            box-shadow: 0 4px 30px rgba(0,0,0,0.10);
            border-bottom-color: var(--border-color);
        }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 24px;
        }
        .logo {
            font-size: 1.5rem; font-weight: 800; color: var(--primary-dark);
            letter-spacing: -0.03em; display: flex; align-items: center; gap: 10px;
        }
        .logo i { color: var(--secondary); font-size: 1.3rem; }
        .logo span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { opacity: 0.9; }
        .nav-list { display: flex; align-items: center; gap: 8px; }
        .nav-list li a {
            display: inline-block; padding: 8px 20px; border-radius: 30px;
            font-size: 0.95rem; font-weight: 500; color: var(--text-secondary);
            transition: var(--transition); position: relative;
        }
        .nav-list li a:hover { color: var(--primary); background: rgba(42,111,201,0.08); }
        .nav-list li a.active { color: var(--primary-dark); background: rgba(42,111,201,0.12); font-weight: 600; }
        .nav-cta a {
            background: var(--primary-gradient) !important; color: #fff !important;
            padding: 10px 28px !important; border-radius: 30px !important;
            font-weight: 600 !important; box-shadow: 0 4px 16px rgba(26,77,143,0.25);
        }
        .nav-cta a:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(26,77,143,0.35) !important; background: linear-gradient(135deg, #1a4d8f 0%, #2a6fc9 100%) !important; }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text-primary); cursor: pointer; padding: 8px; }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-list { 
                position: fixed; top: var(--nav-height); left: 0; right: 0;
                background: rgba(255,255,255,0.98); backdrop-filter: blur(16px);
                flex-direction: column; padding: 16px 24px; gap: 4px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%); opacity: 0; pointer-events: none;
                transition: var(--transition); box-shadow: var(--shadow-md);
            }
            .nav-list.open { transform: translateY(0); opacity: 1; pointer-events: all; }
            .nav-list li a { width: 100%; text-align: center; padding: 12px 20px; }
            .nav-cta a { width: 100%; text-align: center; }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            min-height: 100vh; display: flex; align-items: center; justify-content: center;
            position: relative; overflow: hidden;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding-top: var(--nav-height);
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(13,27,42,0.70) 0%, rgba(26,77,143,0.55) 50%, rgba(13,27,42,0.70) 100%);
            z-index: 1;
        }
        .hero::after {
            content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
            background: linear-gradient(to top, var(--bg-light) 0%, transparent 100%);
            z-index: 2;
        }
        .hero-content { position: relative; z-index: 3; text-align: center; max-width: 800px; padding: 0 24px; }
        .hero-badge {
            display: inline-block; background: rgba(255,255,255,0.15); backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.20); border-radius: 30px;
            padding: 8px 24px; font-size: 0.85rem; color: rgba(255,255,255,0.90);
            letter-spacing: 0.5px; margin-bottom: 24px;
        }
        .hero-badge i { color: var(--secondary); margin-right: 6px; }
        .hero h1 {
            font-size: 3.2rem; font-weight: 800; color: #fff;
            line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 20px;
            text-shadow: 0 2px 40px rgba(0,0,0,0.25);
        }
        .hero h1 span { color: var(--secondary); }
        .hero p {
            font-size: 1.2rem; color: rgba(255,255,255,0.85);
            line-height: 1.7; max-width: 600px; margin: 0 auto 36px;
            text-shadow: 0 1px 20px rgba(0,0,0,0.20);
        }
        .hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 36px; border-radius: 30px; font-weight: 600; font-size: 1rem; border: none; cursor: pointer; transition: var(--transition); text-decoration: none; }
        .btn-primary { background: var(--primary-gradient); color: #fff; box-shadow: 0 8px 30px rgba(26,77,143,0.35); }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(26,77,143,0.45); color: #fff; }
        .btn-secondary { background: rgba(255,255,255,0.15); backdrop-filter: blur(8px); border: 1.5px solid rgba(255,255,255,0.30); color: #fff; }
        .btn-secondary:hover { background: rgba(255,255,255,0.25); transform: translateY(-3px); color: #fff; }
        .btn-accent { background: var(--secondary); color: var(--bg-dark); box-shadow: 0 8px 30px rgba(232,168,56,0.35); }
        .btn-accent:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(232,168,56,0.45); color: var(--bg-dark); }
        .btn-outline { background: transparent; border: 2px solid var(--primary-light); color: var(--primary-light); }
        .btn-outline:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); }
        .btn-lg { padding: 18px 48px; font-size: 1.1rem; }

        .hero-stats { display: flex; gap: 40px; justify-content: center; margin-top: 48px; flex-wrap: wrap; }
        .hero-stat { text-align: center; }
        .hero-stat .num { font-size: 2.2rem; font-weight: 800; color: #fff; line-height: 1; }
        .hero-stat .label { font-size: 0.85rem; color: rgba(255,255,255,0.70); margin-top: 4px; }

        /* ===== 卡片系统 ===== */
        .card {
            background: var(--bg-white); border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm); overflow: hidden;
            transition: var(--transition); border: 1px solid var(--border-light);
        }
        .card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border-color); }
        .card-image { width: 100%; aspect-ratio: 16/10; object-fit: cover; display: block; }
        .card-body { padding: 24px; }
        .card-body h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
        .card-body p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
        .card-tag { display: inline-block; font-size: 0.75rem; font-weight: 600; padding: 3px 12px; border-radius: 12px; background: rgba(42,111,201,0.08); color: var(--primary-light); margin-bottom: 8px; }

        .card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        @media (max-width: 1024px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 640px) { .card-grid { grid-template-columns: 1fr; } }

        .card-feature {
            text-align: center; padding: 40px 28px; border-radius: var(--radius-md);
            background: var(--bg-white); box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light); transition: var(--transition);
        }
        .card-feature:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border-color); }
        .card-feature .icon { font-size: 2.4rem; color: var(--primary-light); margin-bottom: 16px; }
        .card-feature h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
        .card-feature p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; max-width: 260px; margin: 0 auto; }

        /* ===== 内容列表 ===== */
        .content-list { display: flex; flex-direction: column; gap: 16px; }
        .content-item {
            display: flex; align-items: flex-start; gap: 20px;
            padding: 20px 24px; background: var(--bg-white); border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm); border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .content-item:hover { transform: translateX(4px); box-shadow: var(--shadow-md); border-color: var(--border-color); }
        .content-item .thumb { width: 100px; height: 72px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
        .content-item .info { flex: 1; min-width: 0; }
        .content-item .info h3 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .content-item .info h3 a { color: var(--text-primary); }
        .content-item .info h3 a:hover { color: var(--primary-light); }
        .content-item .info .meta { font-size: 0.8rem; color: var(--text-muted); display: flex; gap: 16px; align-items: center; }
        .content-item .info .meta .cat { color: var(--primary-light); font-weight: 500; }
        .content-item .badge { background: rgba(232,168,56,0.12); color: var(--secondary-dark); font-size: 0.7rem; padding: 2px 10px; border-radius: 10px; font-weight: 600; }

        /* ===== 数据 / 统计 ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .stat-card {
            text-align: center; padding: 32px 20px; border-radius: var(--radius-md);
            background: var(--bg-white); box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light); transition: var(--transition);
        }
        .stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .stat-card .num { font-size: 2.4rem; font-weight: 800; color: var(--primary-light); line-height: 1; }
        .stat-card .label { font-size: 0.9rem; color: var(--text-secondary); margin-top: 8px; }
        @media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 480px) { .stats-grid { grid-template-columns: 1fr; } }

        /* ===== 流程步骤 ===== */
        .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
        .steps::before {
            content: ''; position: absolute; top: 44px; left: 12%; right: 12%;
            height: 2px; background: linear-gradient(to right, var(--primary-light), var(--secondary), var(--primary-light));
            z-index: 0;
        }
        .step-item { text-align: center; position: relative; z-index: 1; }
        .step-num {
            width: 56px; height: 56px; line-height: 56px; text-align: center;
            border-radius: 50%; background: var(--primary-gradient); color: #fff;
            font-size: 1.3rem; font-weight: 800; margin: 0 auto 16px;
            box-shadow: 0 8px 24px rgba(26,77,143,0.25);
        }
        .step-item h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
        .step-item p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; max-width: 200px; margin: 0 auto; }
        @media (max-width: 768px) { 
            .steps { grid-template-columns: repeat(2, 1fr); }
            .steps::before { display: none; }
        }
        @media (max-width: 480px) { .steps { grid-template-columns: 1fr; } }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-white); border-radius: var(--radius-md);
            border: 1px solid var(--border-light); overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border-color); }
        .faq-q {
            display: flex; align-items: center; justify-content: space-between;
            padding: 18px 24px; cursor: pointer; font-weight: 600; font-size: 1rem;
            color: var(--text-primary); user-select: none;
        }
        .faq-q i { color: var(--primary-light); transition: var(--transition); font-size: 0.9rem; }
        .faq-item.open .faq-q i { transform: rotate(180deg); }
        .faq-a {
            padding: 0 24px 18px; font-size: 0.9rem; color: var(--text-secondary);
            line-height: 1.7; display: none;
        }
        .faq-item.open .faq-a { display: block; }

        /* ===== CTA 区域 ===== */
        .cta-section {
            background: var(--primary-gradient); border-radius: var(--radius-lg);
            padding: 60px 48px; text-align: center; position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10; z-index: 0;
        }
        .cta-section * { position: relative; z-index: 1; }
        .cta-section h2 { font-size: 2rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
        .cta-section p { font-size: 1.05rem; color: rgba(255,255,255,0.85); max-width: 560px; margin: 0 auto 28px; }
        .cta-section .btn { background: #fff; color: var(--primary-dark); font-weight: 700; }
        .cta-section .btn:hover { background: var(--secondary); color: var(--bg-dark); transform: translateY(-3px); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.75);
            padding: 48px 0 24px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
        .footer-brand .logo { color: #fff; font-size: 1.4rem; margin-bottom: 12px; }
        .footer-brand .logo span { -webkit-text-fill-color: #fff; }
        .footer-brand p { font-size: 0.85rem; line-height: 1.7; max-width: 320px; color: rgba(255,255,255,0.60); }
        .footer-col h4 { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul li a { font-size: 0.85rem; color: rgba(255,255,255,0.60); transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px; margin-top: 8px;
            display: flex; justify-content: space-between; align-items: center;
            flex-wrap: wrap; gap: 12px;
            font-size: 0.8rem; color: rgba(255,255,255,0.40);
        }
        @media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

        /* ===== 背景区块变体 ===== */
        .bg-light { background: var(--bg-light); }
        .bg-white { background: var(--bg-white); }
        .bg-dark { background: var(--bg-dark); color: var(--text-light); }
        .bg-dark .section-title h2 { color: #fff; }
        .bg-dark .section-title p { color: rgba(255,255,255,0.70); }

        .backdrop-blur { backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }

        /* ===== 分隔线 ===== */
        .divider { width: 60px; height: 3px; background: var(--primary-gradient); border-radius: 3px; margin: 0 auto 16px; }

        /* ===== 响应式微调 ===== */
        @media (max-width: 1024px) {
            .hero h1 { font-size: 2.6rem; }
            .section { padding: 60px 0; }
            .section-title h2 { font-size: 1.7rem; }
        }
        @media (max-width: 768px) {
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; }
            .hero-stat .num { font-size: 1.6rem; }
            .section { padding: 48px 0; }
            .section-title { margin-bottom: 32px; }
            .section-title h2 { font-size: 1.5rem; }
            .cta-section { padding: 40px 24px; }
            .cta-section h2 { font-size: 1.5rem; }
            .btn-lg { padding: 14px 32px; font-size: 1rem; }
        }
        @media (max-width: 480px) {
            .hero h1 { font-size: 1.6rem; }
            .container { padding: 0 16px; }
            .hero-actions .btn { width: 100%; justify-content: center; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .gap-16 { gap: 16px; }
        .gap-24 { gap: 24px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-wrap { flex-wrap: wrap; }
        .w-full { width: 100%; }

/* roulang page: article */
:root {
            --primary: #0b3d5f;
            --primary-light: #1a6b8a;
            --primary-dark: #06283d;
            --secondary: #e8a838;
            --secondary-light: #f0c96a;
            --secondary-dark: #c88a1e;
            --accent: #2ecc71;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-light: #eef2f7;
            --bg-dark: #0b1a2a;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-light: #7a8a9a;
            --text-white: #f0f4f8;
            --border-color: #dce4ec;
            --border-light: #e8edf3;
            --shadow-sm: 0 2px 8px rgba(11,61,95,0.06);
            --shadow-md: 0 6px 24px rgba(11,61,95,0.10);
            --shadow-lg: 0 16px 48px rgba(11,61,95,0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.25s ease;
            --max-width: 1200px;
            --header-height: 72px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            padding-top: var(--header-height);
        }

        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; outline: none; border: none; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--header-height);
            background: rgba(255,255,255,0.75);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 12px rgba(11,61,95,0.04);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(255,255,255,0.96); box-shadow: 0 4px 20px rgba(11,61,95,0.08); }
        .header-inner {
            max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
            display: flex; align-items: center; justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.5rem; font-weight: 700; color: var(--primary); letter-spacing: -0.3px;
        }
        .logo i { color: var(--secondary); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-toggle { display: none; background: transparent; font-size: 1.5rem; color: var(--primary); cursor: pointer; padding: 8px; border-radius: var(--radius-sm); }
        .nav-toggle:hover { background: var(--bg-light); }
        .nav-list { display: flex; align-items: center; gap: 6px; }
        .nav-list li a {
            display: flex; align-items: center; gap: 6px;
            padding: 8px 18px; border-radius: 40px;
            font-size: 0.95rem; font-weight: 500; color: var(--text-secondary);
            transition: var(--transition); position: relative;
        }
        .nav-list li a i { font-size: 1rem; opacity: 0.7; }
        .nav-list li a:hover { background: var(--bg-light); color: var(--primary); }
        .nav-list li a.active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(11,61,95,0.20); }
        .nav-list li a.active i { opacity: 1; }
        .nav-list li.nav-cta a {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            color: var(--primary-dark); font-weight: 600; padding: 8px 24px;
            box-shadow: 0 4px 14px rgba(232,168,56,0.30);
        }
        .nav-list li.nav-cta a:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,168,56,0.35); }

        /* ===== Breadcrumb ===== */
        .breadcrumb-area {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 14px 0;
        }
        .breadcrumb-area .container { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 0.9rem; color: var(--text-light); }
        .breadcrumb-area a { color: var(--primary-light); }
        .breadcrumb-area a:hover { color: var(--primary); }
        .breadcrumb-area .sep { color: var(--border-color); margin: 0 4px; }

        /* ===== Article Main ===== */
        .article-main { padding: 48px 0 60px; }
        .article-wrapper { max-width: 860px; margin: 0 auto; }
        .article-card {
            background: var(--bg-white); border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm); padding: 40px 48px;
            border: 1px solid var(--border-light);
        }
        .article-header { margin-bottom: 28px; }
        .article-category {
            display: inline-block; padding: 4px 16px; border-radius: 40px;
            background: var(--bg-light); color: var(--primary-light);
            font-size: 0.85rem; font-weight: 500; margin-bottom: 12px;
        }
        .article-header h1 {
            font-size: 2.2rem; font-weight: 700; line-height: 1.3;
            color: var(--primary-dark); margin-bottom: 16px;
        }
        .article-meta {
            display: flex; align-items: center; flex-wrap: wrap; gap: 18px;
            font-size: 0.9rem; color: var(--text-light); border-top: 1px solid var(--border-light);
            padding-top: 16px;
        }
        .article-meta i { margin-right: 4px; opacity: 0.6; }
        .article-meta span { display: flex; align-items: center; gap: 4px; }

        .article-featured-image { margin-bottom: 28px; border-radius: var(--radius-md); overflow: hidden; }
        .article-featured-image img { width: 100%; height: auto; max-height: 480px; object-fit: cover; border-radius: var(--radius-md); }

        .article-content { font-size: 1.05rem; line-height: 1.85; color: var(--text-primary); }
        .article-content p { margin-bottom: 18px; }
        .article-content h2 { font-size: 1.6rem; font-weight: 700; color: var(--primary-dark); margin: 32px 0 16px; }
        .article-content h3 { font-size: 1.3rem; font-weight: 600; color: var(--primary); margin: 28px 0 12px; }
        .article-content ul, .article-content ol { margin: 16px 0 18px; padding-left: 24px; }
        .article-content ul li { list-style: disc; margin-bottom: 8px; }
        .article-content ol li { list-style: decimal; margin-bottom: 8px; }
        .article-content blockquote {
            border-left: 4px solid var(--secondary); background: var(--bg-light);
            padding: 16px 24px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0; font-style: italic; color: var(--text-secondary);
        }
        .article-content img { margin: 24px auto; border-radius: var(--radius-md); }
        .article-content a { color: var(--primary-light); border-bottom: 1px solid transparent; }
        .article-content a:hover { border-bottom-color: var(--primary-light); }

        .article-footer { margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border-light); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
        .article-tags { display: flex; flex-wrap: wrap; gap: 10px; }
        .article-tags .tag {
            padding: 4px 14px; border-radius: 40px; background: var(--bg-light);
            font-size: 0.8rem; color: var(--text-secondary); border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        .article-share { display: flex; align-items: center; gap: 10px; }
        .article-share span { font-size: 0.9rem; color: var(--text-light); }
        .article-share a {
            display: inline-flex; align-items: center; justify-content: center;
            width: 36px; height: 36px; border-radius: 50%;
            background: var(--bg-light); color: var(--text-secondary);
            transition: var(--transition); font-size: 1rem;
        }
        .article-share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

        /* ===== Related Posts ===== */
        .related-section { background: var(--bg-white); padding: 48px 0; border-top: 1px solid var(--border-light); }
        .related-section h2 { font-size: 1.6rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 28px; text-align: center; }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .related-card { background: var(--bg-body); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border-light); transition: var(--transition); }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card img { width: 100%; height: 180px; object-fit: cover; border-radius: 0; }
        .related-card-body { padding: 18px 20px 22px; }
        .related-card-body h3 { font-size: 1.05rem; font-weight: 600; color: var(--primary-dark); margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card-body p { font-size: 0.9rem; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
        .related-card-body .meta { font-size: 0.8rem; color: var(--text-light); }

        /* ===== Not Found ===== */
        .not-found-box { text-align: center; padding: 60px 20px; }
        .not-found-box i { font-size: 3.6rem; color: var(--border-color); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 1.6rem; color: var(--text-secondary); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-light); margin-bottom: 24px; }
        .not-found-box .btn { display: inline-block; padding: 12px 32px; background: var(--primary); color: #fff; border-radius: 40px; font-weight: 500; transition: var(--transition); }
        .not-found-box .btn:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark); color: var(--text-white); padding: 56px 0 0;
            border-top: 4px solid var(--secondary);
        }
        .site-footer .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
        .footer-brand .logo { font-size: 1.4rem; margin-bottom: 16px; color: #fff; }
        .footer-brand .logo i { color: var(--secondary); }
        .footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
        .footer-brand p { font-size: 0.9rem; color: #9aabbb; line-height: 1.7; max-width: 360px; }
        .footer-col h4 { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 16px; position: relative; padding-bottom: 8px; }
        .footer-col h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 32px; height: 3px; background: var(--secondary); border-radius: 4px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: #9aabbb; font-size: 0.9rem; transition: var(--transition); display: flex; align-items: center; gap: 6px; }
        .footer-col ul li a:hover { color: var(--secondary); transform: translateX(4px); }
        .footer-col ul li a i { width: 18px; opacity: 0.7; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: #7a8a9a; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .article-card { padding: 32px 28px; }
        }

        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-list { display: none; position: absolute; top: var(--header-height); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px); flex-direction: column; padding: 16px 24px; border-bottom: 1px solid var(--border-light); box-shadow: var(--shadow-md); border-radius: 0 0 var(--radius-md) var(--radius-md); }
            .nav-list.open { display: flex; }
            .nav-list li a { width: 100%; justify-content: center; padding: 12px 18px; border-radius: var(--radius-sm); }
            .nav-list li.nav-cta a { width: 100%; text-align: center; }
            .article-header h1 { font-size: 1.6rem; }
            .article-card { padding: 24px 18px; }
            .article-meta { gap: 12px; font-size: 0.85rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px 20px; }
            .footer-brand { grid-column: 1 / -1; }
        }

        @media (max-width: 520px) {
            .header-inner { padding: 0 16px; }
            .logo { font-size: 1.2rem; }
            .logo i { font-size: 1.3rem; }
            .article-main { padding: 28px 0 40px; }
            .article-header h1 { font-size: 1.4rem; }
            .article-card { padding: 18px 14px; border-radius: var(--radius-md); }
            .article-content { font-size: 1rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .breadcrumb-area .container { font-size: 0.8rem; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 8px; }
        .mb-2 { margin-bottom: 16px; }
        .mb-3 { margin-bottom: 24px; }
        .mt-2 { margin-top: 16px; }
        .mt-3 { margin-top: 24px; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a4a8a;
            --primary-light: #2a6bc4;
            --primary-dark: #0f2f5e;
            --secondary: #e8a020;
            --secondary-light: #f0b840;
            --accent: #16a34a;
            --bg-light: #f7f9fc;
            --bg-white: #ffffff;
            --bg-dark: #0b1a2e;
            --text-primary: #1a2634;
            --text-secondary: #4a5a6e;
            --text-light: #8a9aae;
            --text-white: #f0f4f8;
            --border-light: #e2e8f0;
            --border-medium: #c8d0dc;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.16);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }

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

        ul,
        ol {
            list-style: none;
        }

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

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

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

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(18px) saturate(180%);
            -webkit-backdrop-filter: blur(18px) saturate(180%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.30);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.92);
            box-shadow: 0 4px 28px rgba(0, 0, 0, 0.10);
            border-bottom: 1px solid var(--border-light);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.3px;
        }
        .logo i {
            color: var(--secondary);
            font-size: 1.6rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.85;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
        }
        .nav-toggle:hover {
            background: var(--border-light);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-list li a i {
            font-size: 0.9rem;
            opacity: 0.7;
        }
        .nav-list li a:hover {
            background: rgba(26, 74, 138, 0.08);
            color: var(--primary);
        }
        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(26, 74, 138, 0.30);
        }
        .nav-list li a.active i {
            opacity: 1;
        }
        .nav-list li a.active:hover {
            background: var(--primary-light);
        }

        .nav-cta a {
            background: var(--secondary) !important;
            color: #1a1a1a !important;
            font-weight: 700 !important;
            padding: 8px 24px !important;
            box-shadow: 0 4px 14px rgba(232, 160, 32, 0.35);
            border-radius: 40px !important;
        }
        .nav-cta a i {
            opacity: 1 !important;
        }
        .nav-cta a:hover {
            background: var(--secondary-light) !important;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 160, 32, 0.40);
        }

        @media screen and (max-width: 820px) {
            .nav-toggle {
                display: block;
            }
            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 8px;
                box-shadow: 0 20px 48px rgba(0, 0, 0, 0.12);
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list li a {
                width: 100%;
                padding: 12px 20px;
                border-radius: var(--radius-md);
                font-size: 1.05rem;
            }
            .nav-cta a {
                justify-content: center;
                margin-top: 6px;
            }
        }

        @media screen and (max-width: 480px) {
            .header-inner {
                padding: 0 12px;
            }
            .logo {
                font-size: 1.25rem;
            }
            .logo i {
                font-size: 1.3rem;
            }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            padding: 120px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 160, 32, 0.15), transparent 60%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.20);
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }
        .page-banner .breadcrumb a:hover {
            color: #fff;
        }
        .page-banner .breadcrumb span {
            color: var(--secondary-light);
        }

        @media screen and (max-width: 768px) {
            .page-banner {
                padding: 100px 0 40px;
                min-height: 200px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
        }
        @media screen and (max-width: 480px) {
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner p {
                font-size: 0.9rem;
            }
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: 72px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-title .badge {
            display: inline-block;
            background: rgba(232, 160, 32, 0.12);
            color: var(--secondary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 4px 16px;
            border-radius: 40px;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        @media screen and (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
            .section-title p {
                font-size: 0.95rem;
            }
            .section-title {
                margin-bottom: 32px;
            }
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--border-medium);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 24px 20px 20px;
        }
        .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .card-body p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .card-body .tag {
            display: inline-block;
            background: rgba(26, 74, 138, 0.08);
            color: var(--primary-light);
            font-size: 0.8rem;
            font-weight: 500;
            padding: 2px 12px;
            border-radius: 40px;
            margin-right: 6px;
            margin-bottom: 6px;
        }
        .card-body .tag:hover {
            background: var(--primary);
            color: #fff;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 4px;
            font-size: 0.9rem;
        }
        .card-link i {
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Grid ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 24px;
        }

        @media screen and (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media screen and (max-width: 768px) {
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== Feature / Info Blocks ===== */
        .info-block {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 24px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .info-block:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border-medium);
        }
        .info-block .icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            background: var(--primary);
        }
        .info-block .icon.gold {
            background: var(--secondary);
            color: #1a1a1a;
        }
        .info-block .icon.green {
            background: var(--accent);
        }
        .info-block .text h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .info-block .text p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        @media screen and (max-width: 600px) {
            .info-block {
                flex-direction: column;
                align-items: center;
                text-align: center;
                padding: 20px 16px;
            }
            .info-block .icon {
                width: 44px;
                height: 44px;
                font-size: 1.3rem;
            }
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .stat-item .number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .number span {
            font-size: 1.2rem;
            color: var(--text-light);
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        @media screen and (max-width: 768px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item .number {
                font-size: 1.8rem;
            }
        }
        @media screen and (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .number {
                font-size: 1.5rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-medium);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            text-align: left;
            gap: 12px;
        }
        .faq-question i {
            font-size: 1.1rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-answer p {
            margin: 0;
        }

        @media screen and (max-width: 600px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.9rem;
            }
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-block .container {
            position: relative;
            z-index: 2;
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: #fff;
        }
        .cta-block p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .cta-block .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--secondary);
            color: #1a1a1a;
            box-shadow: 0 4px 16px rgba(232, 160, 32, 0.35);
        }
        .btn-primary:hover {
            background: var(--secondary-light);
            color: #1a1a1a;
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(232, 160, 32, 0.45);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-3px);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 0.9rem;
        }

        @media screen and (max-width: 768px) {
            .cta-block {
                padding: 40px 24px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .cta-block p {
                font-size: 0.95rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        /* ===== Filter / Tab Bar ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 36px;
        }
        .filter-bar .filter-btn {
            padding: 8px 22px;
            border-radius: 40px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-bar .filter-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: rgba(26, 74, 138, 0.05);
        }
        .filter-bar .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(26, 74, 138, 0.25);
        }

        /* ===== Entry List ===== */
        .entry-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .entry-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .entry-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border-medium);
            transform: translateX(4px);
        }
        .entry-item .rank {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-light);
            min-width: 36px;
        }
        .entry-item .rank.gold {
            color: var(--secondary);
        }
        .entry-item .info {
            flex: 1;
        }
        .entry-item .info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .entry-item .info p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
        }
        .entry-item .entry-btn {
            flex-shrink: 0;
        }
        .entry-item .entry-btn .btn {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        @media screen and (max-width: 640px) {
            .entry-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px 18px;
            }
            .entry-item .rank {
                font-size: 1.1rem;
                min-width: auto;
            }
            .entry-item .entry-btn {
                align-self: stretch;
            }
            .entry-item .entry-btn .btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Tags ===== */
        .tags-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .tags-group .tag {
            padding: 6px 18px;
            border-radius: 40px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            font-size: 0.88rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .tags-group .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== Content Section ===== */
        .content-area {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 40px 36px;
            border: 1px solid var(--border-light);
            line-height: 1.8;
        }
        .content-area h3 {
            font-size: 1.4rem;
            margin-top: 28px;
            margin-bottom: 12px;
        }
        .content-area p {
            margin-bottom: 16px;
            color: var(--text-secondary);
        }
        .content-area ul {
            list-style: disc;
            padding-left: 24px;
            margin-bottom: 16px;
            color: var(--text-secondary);
        }
        .content-area ul li {
            margin-bottom: 6px;
        }

        @media screen and (max-width: 640px) {
            .content-area {
                padding: 24px 18px;
            }
            .content-area h3 {
                font-size: 1.2rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 60px 0 30px;
            margin-top: 20px;
        }
        .site-footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo span {
            background: linear-gradient(135deg, #fff, #c8d8f0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary-light);
            transform: translateX(4px);
        }
        .footer-col ul li a i {
            font-size: 0.85rem;
            width: 18px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.50);
        }

        @media screen and (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media screen and (max-width: 560px) {
            .site-footer {
                padding: 40px 0 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .bg-light {
            background: var(--bg-light);
        }
        .bg-white {
            background: var(--bg-white);
        }
        .rounded-full {
            border-radius: 40px;
        }

        /* ===== Scroll to top ===== */
        .scroll-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            z-index: 900;
        }
        .scroll-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .scroll-top:hover {
            background: var(--primary-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        @media screen and (max-width: 480px) {
            .scroll-top {
                bottom: 20px;
                right: 20px;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }

        /* ===== Foundation Overrides ===== */
        .grid-container {
            max-width: var(--max-width);
            padding: 0 24px;
        }
        @media screen and (max-width: 768px) {
            .grid-container {
                padding: 0 16px;
            }
        }