/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #2d2d5e;
            --primary-dark: #0f0f1f;
            --accent: #c9a84c;
            --accent-light: #e0c46a;
            --accent-dark: #a88a2e;
            --bg: #f5f6fa;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --text: #2d3436;
            --text-light: #636e72;
            --text-white: #ffffff;
            --border: #e0e4ea;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --nav-height: 60px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--primary); }

        /* ===== 容器 ===== */
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .container-narrow { max-width: 900px; margin: 0 auto; padding: 0 24px; }

        /* ===== 页眉导航 ===== */
        .site-header {
            background: var(--primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 16px rgba(0,0,0,0.15);
        }
        .header-brand {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            padding: 0 24px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i { color: var(--accent); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, #fff 60%, var(--accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .header-actions { display: flex; align-items: center; gap: 16px; }
        .header-search { position: relative; }
        .header-search input {
            background: rgba(255,255,255,0.12);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: 30px;
            padding: 8px 16px 8px 40px;
            color: #fff;
            width: 200px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .header-search input::placeholder { color: rgba(255,255,255,0.5); }
        .header-search input:focus { background: rgba(255,255,255,0.2); border-color: var(--accent); width: 260px; }
        .header-search i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: rgba(255,255,255,0.5); font-size: 0.9rem; }

        /* 频道导航 */
        .nav-channels {
            background: var(--primary-dark);
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .nav-channels-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 44px;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .nav-channels-inner::-webkit-scrollbar { display: none; }
        .nav-channels a {
            color: rgba(255,255,255,0.75);
            font-size: 0.88rem;
            font-weight: 500;
            padding: 6px 18px;
            border-radius: 20px;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.3px;
            position: relative;
        }
        .nav-channels a:hover { color: #fff; background: rgba(255,255,255,0.1); }
        .nav-channels a.active { color: var(--accent); background: rgba(201,168,76,0.15); font-weight: 600; }
        .nav-channels a i { margin-right: 6px; font-size: 0.8rem; }

        /* 移动端菜单按钮 */
        .menu-toggle { display: none; background: none; color: #fff; font-size: 1.4rem; cursor: pointer; padding: 4px 8px; border-radius: 6px; }
        .menu-toggle:hover { background: rgba(255,255,255,0.1); }

        /* ===== Hero 首屏 ===== */
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, #16213e 100%);
            padding: 100px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(201,168,76,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container { position: relative; z-index: 1; }
        .hero-content { max-width: 780px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201,168,76,0.15);
            border: 1px solid rgba(201,168,76,0.25);
            padding: 6px 18px;
            border-radius: 30px;
            color: var(--accent-light);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 20px;
        }
        .hero h1 span { color: var(--accent); }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.75);
            max-width: 600px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(201,168,76,0.35); color: var(--primary-dark); }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255,255,255,0.25);
        }
        .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--accent); color: var(--accent-light); transform: translateY(-2px); }
        .hero-stats {
            display: flex;
            gap: 48px;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .hero-stat { text-align: left; }
        .hero-stat-num { font-size: 2rem; font-weight: 800; color: var(--accent); display: block; }
        .hero-stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.55); margin-top: 4px; }

        /* ===== 通用板块 ===== */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-card); }
        .section-dark { background: var(--primary); color: var(--text-white); }
        .section-title { text-align: center; margin-bottom: 56px; }
        .section-title h2 { font-size: 2.2rem; font-weight: 700; position: relative; display: inline-block; }
        .section-title h2::after { content: ''; display: block; width: 60px; height: 4px; background: var(--accent); border-radius: 4px; margin: 12px auto 0; }
        .section-title p { color: var(--text-light); max-width: 600px; margin: 16px auto 0; font-size: 1.05rem; }
        .section-dark .section-title h2 { color: var(--text-white); }
        .section-dark .section-title p { color: rgba(255,255,255,0.65); }

        /* ===== 核心说明 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .intro-text h3 { font-size: 1.6rem; margin-bottom: 20px; }
        .intro-text p { color: var(--text-light); margin-bottom: 16px; font-size: 1.02rem; line-height: 1.8; }
        .intro-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
        .intro-feature { display: flex; align-items: center; gap: 12px; background: var(--bg); padding: 12px 18px; border-radius: var(--radius-sm); font-weight: 500; font-size: 0.95rem; }
        .intro-feature i { color: var(--accent); font-size: 1.1rem; }
        .intro-visual {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            min-height: 340px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .intro-visual::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(201,168,76,0.12) 0%, transparent 70%);
            border-radius: 50%;
        }
        .intro-visual-item { display: flex; align-items: center; gap: 16px; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.08); position: relative; z-index: 1; }
        .intro-visual-item:last-child { border-bottom: none; }
        .intro-visual-icon { width: 44px; height: 44px; border-radius: 50%; background: rgba(201,168,76,0.2); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 1.2rem; flex-shrink: 0; }
        .intro-visual-text { color: rgba(255,255,255,0.85); font-weight: 500; }
        .intro-visual-text small { display: block; font-weight: 400; color: rgba(255,255,255,0.5); font-size: 0.85rem; }

        /* ===== 分类入口卡片 ===== */
        .category-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .cat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 28px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .cat-card:hover::before { transform: scaleX(1); }
        .cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .cat-card-icon { width: 64px; height: 64px; border-radius: 50%; background: rgba(201,168,76,0.12); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 1.6rem; color: var(--accent); transition: var(--transition); }
        .cat-card:hover .cat-card-icon { background: var(--accent); color: #fff; }
        .cat-card h3 { font-size: 1.25rem; margin-bottom: 12px; }
        .cat-card p { color: var(--text-light); font-size: 0.95rem; line-height: 1.7; margin-bottom: 20px; }
        .cat-card .btn-small {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 20px;
            background: var(--primary);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .cat-card .btn-small:hover { background: var(--accent); color: var(--primary-dark); }

        /* ===== 最新资讯列表 ===== */
        .news-list { display: grid; gap: 20px; }
        .news-item {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            align-items: start;
        }
        .news-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
        .news-meta { display: flex; flex-direction: column; gap: 6px; }
        .news-cat {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 16px;
            background: rgba(201,168,76,0.12);
            color: var(--accent-dark);
            font-size: 0.78rem;
            font-weight: 600;
            align-self: flex-start;
        }
        .news-date { font-size: 0.82rem; color: var(--text-light); }
        .news-content h4 { font-size: 1.1rem; margin-bottom: 8px; }
        .news-content h4 a { color: var(--primary); }
        .news-content h4 a:hover { color: var(--accent); }
        .news-content p { color: var(--text-light); font-size: 0.92rem; line-height: 1.7; }
        .news-empty {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        .news-empty i { font-size: 2.4rem; color: var(--border); margin-bottom: 16px; display: block; }

        /* ===== 优势板块 ===== */
        .advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .adv-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .adv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .adv-icon { font-size: 2rem; color: var(--accent); margin-bottom: 16px; }
        .adv-card h4 { font-size: 1.1rem; margin-bottom: 10px; }
        .adv-card p { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; }

        /* ===== 使用流程 ===== */
        .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; }
        .steps::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--primary-light), var(--accent));
            opacity: 0.3;
            z-index: 0;
        }
        .step { text-align: center; position: relative; z-index: 1; }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            margin: 0 auto 20px;
            box-shadow: 0 4px 16px rgba(201,168,76,0.3);
        }
        .step h4 { font-size: 1.1rem; margin-bottom: 8px; }
        .step p { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; max-width: 200px; margin: 0 auto; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: grid; gap: 16px; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--primary);
            transition: var(--transition);
            user-select: none;
        }
        .faq-question:hover { background: rgba(201,168,76,0.04); }
        .faq-question i { color: var(--accent); transition: transform var(--transition); font-size: 0.9rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p { color: var(--text-light); font-size: 0.95rem; line-height: 1.7; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(201,168,76,0.06) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-section h2 { color: var(--text-white); font-size: 2.4rem; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.7); font-size: 1.1rem; max-width: 500px; margin: 0 auto 32px; }
        .cta-section .btn-primary { font-size: 1.1rem; padding: 16px 40px; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { font-size: 1.2rem; margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
        .footer-col h5 { color: var(--text-white); font-size: 0.95rem; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.5px; }
        .footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 0.88rem; padding: 4px 0; transition: var(--transition); }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.4); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .advantages-grid { grid-template-columns: repeat(2, 1fr); }
            .steps { grid-template-columns: repeat(2, 1fr); }
            .steps::before { display: none; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .hero { padding: 60px 0 50px; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stat-num { font-size: 1.6rem; }

            .intro-grid { grid-template-columns: 1fr; gap: 40px; }
            .intro-features { grid-template-columns: 1fr; }

            .category-cards { grid-template-columns: 1fr 1fr; }

            .news-item { grid-template-columns: 1fr; gap: 12px; }

            .section-title h2 { font-size: 1.8rem; }
            .section { padding: 56px 0; }

            .header-search input { width: 140px; }
            .header-search input:focus { width: 180px; }

            .nav-channels-inner { gap: 2px; padding: 0 12px; }
            .nav-channels a { font-size: 0.82rem; padding: 6px 14px; }

            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }

            .steps { grid-template-columns: 1fr 1fr; gap: 24px; }
            .advantages-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 520px) {
            .hero h1 { font-size: 1.8rem; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 16px; }

            .category-cards { grid-template-columns: 1fr; }
            .advantages-grid { grid-template-columns: 1fr; }
            .steps { grid-template-columns: 1fr; }

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

            .header-search { display: none; }
            .menu-toggle { display: block; }

            .nav-channels-inner { flex-wrap: nowrap; overflow-x: auto; }
            .nav-channels a { font-size: 0.78rem; padding: 4px 12px; }

            .cta-section h2 { font-size: 1.8rem; }
            .cta-section .btn-primary { width: 100%; justify-content: center; }
        }

        /* ===== 辅助类 ===== */
        .text-accent { color: var(--accent); }
        .text-center { text-align: center; }
        .mt-20 { margin-top: 20px; }
        .mb-20 { margin-bottom: 20px; }
        .gap-16 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

        /* Foundation 覆盖 */
        .grid-x { margin: 0; }
        .cell { padding: 0; }
        button, .button { font-family: inherit; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2c5f9e;
            --primary-dark: #0f2444;
            --accent: #f5a623;
            --accent-hover: #e0961a;
            --bg-body: #f7f9fc;
            --bg-card: #ffffff;
            --bg-alt: #eef2f7;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #7a7a9a;
            --border-color: #e2e6ef;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 70px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            color: var(--primary-dark);
            line-height: 1.3;
            font-weight: 700;
        }
        p {
            margin-top: 0;
            color: var(--text-secondary);
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 12px auto 0;
        }
        .section-title p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
        }

        /* ===== 头部 / 导航（杂志频道风格） ===== */
        .site-header {
            background: var(--bg-card);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--border-color);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
        }
        .logo i {
            color: var(--accent);
            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;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-actions .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border-radius: 30px;
            padding: 6px 16px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .header-actions .search-box:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(44, 95, 158, 0.15);
        }
        .header-actions .search-box input {
            border: none;
            background: transparent;
            padding: 6px 8px;
            font-size: 0.9rem;
            outline: none;
            min-width: 160px;
            color: var(--text-primary);
        }
        .header-actions .search-box input::placeholder {
            color: var(--text-muted);
        }
        .header-actions .search-box button {
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            padding: 4px;
            transition: color var(--transition);
        }
        .header-actions .search-box button:hover {
            color: var(--primary);
        }
        .header-actions .btn-cta {
            background: var(--accent);
            color: #fff;
            padding: 8px 22px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .header-actions .btn-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(245, 166, 35, 0.3);
        }

        /* 频道导航 */
        .nav-channels {
            background: var(--primary);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
        }
        .nav-channels-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }
        .nav-channels-inner::-webkit-scrollbar {
            height: 3px;
        }
        .nav-channels-inner::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.25);
            border-radius: 3px;
        }
        .nav-channels-inner a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 20px;
            color: rgba(255, 255, 255, 0.80);
            font-size: 0.95rem;
            font-weight: 500;
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-channels-inner a i {
            font-size: 0.9rem;
            opacity: 0.7;
        }
        .nav-channels-inner a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            border-bottom-color: rgba(255, 255, 255, 0.25);
        }
        .nav-channels-inner a.active {
            color: #fff;
            border-bottom-color: var(--accent);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-channels-inner a.active i {
            opacity: 1;
            color: var(--accent);
        }

        /* 移动端菜单切换（小屏显示） */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.4rem;
            padding: 8px 16px;
            cursor: pointer;
        }

        /* ===== Hero（分类页首屏） ===== */
        .hero-category {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 72px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-category .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .hero-category h1 {
            color: #fff;
            font-size: 2.6rem;
            margin-bottom: 16px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        .hero-category h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .hero-category p {
            color: rgba(255, 255, 255, 0.80);
            font-size: 1.2rem;
            max-width: 720px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .hero-category .hero-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 24px;
        }
        .hero-category .hero-badges span {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            color: #fff;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.15);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-category .hero-badges span i {
            color: var(--accent);
        }

        /* ===== 卡片 & 网格 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .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;
        }

        /* ===== 步骤流程 ===== */
        .steps-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            counter-reset: step;
            justify-content: center;
        }
        .step-item {
            flex: 1 1 200px;
            max-width: 260px;
            text-align: center;
            position: relative;
            padding: 24px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            display: block;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            line-height: 40px;
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 auto 14px;
        }
        .step-item h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== 列表区块 ===== */
        .list-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px 32px;
        }
        .list-block li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.98rem;
            color: var(--text-secondary);
        }
        .list-block li i {
            color: var(--accent);
            font-size: 1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .list-block li strong {
            color: var(--text-primary);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-question i {
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }

        /* ===== CTA 区块 ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 64px 0;
            text-align: center;
            border-radius: var(--radius-lg);
            margin: 0 24px;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            pointer-events: none;
        }
        .cta-block .container {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 16px;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-block .btn-cta-large {
            background: var(--accent);
            color: #fff;
            padding: 14px 40px;
            border-radius: 40px;
            font-size: 1.1rem;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 28px rgba(245, 166, 35, 0.35);
        }
        .cta-block .btn-cta-large:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(245, 166, 35, 0.45);
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-block;
            background: var(--bg-alt);
            color: var(--text-secondary);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
        }
        .badge-primary {
            background: rgba(26, 58, 107, 0.10);
            color: var(--primary);
            border-color: rgba(26, 58, 107, 0.20);
        }
        .badge-accent {
            background: rgba(245, 166, 35, 0.15);
            color: #b87a14;
            border-color: rgba(245, 166, 35, 0.25);
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 20px 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 56px 0 24px;
            margin-top: 80px;
        }
        .site-footer .container {
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .logo span {
            background: none;
            -webkit-text-fill-color: #fff;
            background-clip: unset;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h5 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            padding: 5px 0;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col a i {
            width: 20px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.50);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .hero-category h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
                gap: 10px;
                padding: 10px 16px;
            }
            .header-actions .search-box input {
                min-width: 100px;
            }
            .header-actions .btn-cta {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .nav-channels-inner {
                padding: 0 12px;
                gap: 2px;
            }
            .nav-channels-inner a {
                padding: 10px 14px;
                font-size: 0.85rem;
            }
            .nav-channels-inner a span {
                display: none;
            }
            .hero-category {
                padding: 52px 0 44px;
            }
            .hero-category h1 {
                font-size: 1.8rem;
            }
            .hero-category p {
                font-size: 1rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title h2 {
                font-size: 1.6rem;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .list-block {
                grid-template-columns: 1fr;
            }
            .steps-list {
                flex-direction: column;
                align-items: center;
            }
            .step-item {
                max-width: 100%;
                width: 100%;
            }
            .cta-block {
                margin: 0 12px;
                padding: 40px 16px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .nav-toggle {
                display: block;
            }
        }

        @media (max-width: 520px) {
            .header-actions .search-box {
                display: none;
            }
            .header-actions .btn-cta {
                font-size: 0.75rem;
                padding: 5px 12px;
            }
            .hero-category h1 {
                font-size: 1.5rem;
            }
            .hero-category .hero-badges span {
                font-size: 0.78rem;
                padding: 4px 12px;
            }
            .card {
                padding: 20px 16px;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.88rem;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 12px;
        }
        .mt-2 {
            margin-top: 24px;
        }
        .mb-1 {
            margin-bottom: 12px;
        }
        .mb-2 {
            margin-bottom: 24px;
        }
        .gap-1 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a4a;
            --primary-light: #2c4a7a;
            --primary-dark: #0f1a30;
            --secondary: #e8a020;
            --secondary-light: #f0c060;
            --secondary-dark: #c88010;
            --accent: #3a8fb5;
            --accent-light: #6ab0d0;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f1a30;
            --text-primary: #1a2a4a;
            --text-secondary: #4a5a7a;
            --text-light: #7a8aaa;
            --text-white: #ffffff;
            --border-color: #e0e4ea;
            --border-light: #eef0f4;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 74, 0.06);
            --shadow-md: 0 6px 20px rgba(26, 42, 74, 0.10);
            --shadow-lg: 0 12px 40px rgba(26, 42, 74, 0.14);
            --shadow-hover: 0 16px 48px rgba(26, 42, 74, 0.18);
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: 0.25s ease;
            --max-width: 1200px;
            --header-brand-height: 64px;
            --nav-channel-height: 52px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-light); }
        a:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-top: 0;
        }
        h1 { font-size: 2.2rem; margin-bottom: 1rem; }
        h2 { font-size: 1.75rem; margin-bottom: 0.75rem; }
        h3 { font-size: 1.35rem; margin-bottom: 0.6rem; }
        h4 { font-size: 1.15rem; margin-bottom: 0.5rem; }
        p { margin-top: 0; margin-bottom: 1rem; color: var(--text-secondary); }
        ul, ol { padding-left: 1.5rem; margin-bottom: 1rem; }
        li { margin-bottom: 0.35rem; }
        button, .button {
            cursor: pointer;
            font-family: var(--font-body);
            transition: all var(--transition);
        }
        button:focus-visible, .button:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }
        input, textarea, select { font-family: var(--font-body); }
        hr { border: none; border-top: 1px solid var(--border-color); margin: 2rem 0; }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
        }

        /* ===== Header: Brand Row ===== */
        .header-brand {
            background: var(--primary-dark);
            height: var(--header-brand-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .header-brand .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .header-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-white);
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .header-brand .logo i {
            font-size: 1.6rem;
            color: var(--secondary);
        }
        .header-brand .logo span {
            background: linear-gradient(135deg, #ffffff 60%, var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-brand .brand-tagline {
            color: rgba(255,255,255,0.55);
            font-size: 0.85rem;
            display: none;
        }
        @media (min-width: 768px) {
            .header-brand .brand-tagline { display: inline-block; }
        }

        /* ===== Navigation: Channels Row ===== */
        .nav-channels {
            background: var(--primary);
            height: var(--nav-channel-height);
            display: flex;
            align-items: center;
            box-shadow: 0 2px 12px rgba(26,42,74,0.12);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .nav-channels .nav-channels-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
            padding: 0 4px;
            width: 100%;
        }
        .nav-channels .nav-channels-inner::-webkit-scrollbar { display: none; }
        .nav-channels .nav-channels-inner a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0 18px;
            height: 38px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255,255,255,0.75);
            white-space: nowrap;
            transition: all var(--transition);
            text-decoration: none;
        }
        .nav-channels .nav-channels-inner a i { font-size: 0.9rem; opacity: 0.7; }
        .nav-channels .nav-channels-inner a:hover {
            color: #ffffff;
            background: rgba(255,255,255,0.10);
        }
        .nav-channels .nav-channels-inner a.active,
        .nav-channels .nav-channels-inner a[data-slug].active {
            color: #ffffff;
            background: var(--secondary);
            box-shadow: 0 2px 8px rgba(232,160,32,0.30);
        }
        .nav-channels .nav-channels-inner a.active i,
        .nav-channels .nav-channels-inner a[data-slug].active i { opacity: 1; }
        @media (max-width: 640px) {
            .nav-channels .nav-channels-inner a {
                padding: 0 14px;
                font-size: 0.85rem;
                height: 34px;
            }
            .nav-channels .nav-channels-inner a i { font-size: 0.8rem; }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-area {
            background: var(--bg-white);
            padding: 14px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb-area .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .breadcrumb-area .breadcrumb-list a {
            color: var(--accent);
            text-decoration: none;
        }
        .breadcrumb-area .breadcrumb-list a:hover { color: var(--primary-light); }
        .breadcrumb-area .breadcrumb-list .sep { color: var(--border-color); font-weight: 300; }
        .breadcrumb-area .breadcrumb-list .current {
            color: var(--text-secondary);
            font-weight: 500;
            max-width: 280px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ===== Article Header ===== */
        .article-header {
            background: var(--bg-white);
            padding: 40px 0 24px;
            border-bottom: 1px solid var(--border-light);
        }
        .article-header .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            margin-bottom: 16px;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .article-header .article-meta .category-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: var(--secondary);
            color: #ffffff;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .article-header .article-meta .date {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .article-header .article-meta .date i { font-size: 0.85rem; }
        .article-header h1 {
            font-size: 2.4rem;
            line-height: 1.3;
            margin-bottom: 10px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }
        .article-header .article-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .article-header { padding: 28px 0 18px; }
            .article-header h1 { font-size: 1.7rem; }
            .article-header .article-desc { font-size: 1rem; }
        }
        @media (max-width: 520px) {
            .article-header h1 { font-size: 1.4rem; }
            .article-header .article-meta { gap: 10px; font-size: 0.82rem; }
        }

        /* ===== Article Content ===== */
        .article-content-wrap {
            background: var(--bg-white);
            padding: 36px 0 48px;
        }
        .article-content-wrap .article-body {
            max-width: 820px;
            margin: 0 auto;
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-content-wrap .article-body h2,
        .article-content-wrap .article-body h3 {
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        .article-content-wrap .article-body h2 { font-size: 1.6rem; border-bottom: 2px solid var(--border-light); padding-bottom: 8px; }
        .article-content-wrap .article-body h3 { font-size: 1.3rem; }
        .article-content-wrap .article-body p { margin-bottom: 1.2rem; line-height: 1.85; color: var(--text-primary); }
        .article-content-wrap .article-body ul,
        .article-content-wrap .article-body ol { margin-bottom: 1.2rem; }
        .article-content-wrap .article-body li { margin-bottom: 0.4rem; line-height: 1.7; color: var(--text-secondary); }
        .article-content-wrap .article-body blockquote {
            border-left: 4px solid var(--secondary);
            padding: 12px 20px;
            margin: 1.5rem 0;
            background: var(--bg-body);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content-wrap .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem auto;
            box-shadow: var(--shadow-sm);
        }
        .article-content-wrap .article-body a { text-decoration: underline; text-underline-offset: 2px; }
        .article-content-wrap .article-body a:hover { text-decoration: none; }
        .article-content-wrap .article-body code {
            background: var(--bg-body);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--primary-light);
        }
        .article-content-wrap .article-body pre {
            background: var(--primary-dark);
            color: #e8e8e8;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 1.5rem 0;
        }
        .article-content-wrap .article-body pre code { background: none; color: inherit; padding: 0; }
        .article-content-wrap .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }
        .article-content-wrap .article-body th,
        .article-content-wrap .article-body td {
            border: 1px solid var(--border-color);
            padding: 10px 14px;
            text-align: left;
        }
        .article-content-wrap .article-body th {
            background: var(--primary);
            color: #ffffff;
            font-weight: 600;
        }
        .article-content-wrap .article-body td { background: var(--bg-white); }

        .article-content-wrap .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }
        .article-content-wrap .article-tags .tag {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 20px;
            background: var(--bg-body);
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .article-content-wrap .article-tags .tag:hover {
            background: var(--accent);
            color: #ffffff;
        }
        .article-content-wrap .article-tags .tag i { margin-right: 4px; font-size: 0.8rem; }

        .article-not-found {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
        }
        .article-not-found i { font-size: 3rem; color: var(--text-light); margin-bottom: 20px; display: block; }
        .article-not-found h2 { font-size: 1.6rem; margin-bottom: 12px; }
        .article-not-found p { color: var(--text-light); margin-bottom: 24px; }
        .article-not-found .button { padding: 12px 32px; font-size: 1rem; }

        /* ===== Related Section ===== */
        .related-section {
            background: var(--bg-body);
            padding: 48px 0;
        }
        .related-section .section-title {
            font-size: 1.5rem;
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section .section-title i { color: var(--secondary); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .related-card .card-category {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .related-card h4 { font-size: 1.05rem; margin-bottom: 6px; line-height: 1.4; }
        .related-card h4 a { color: var(--text-primary); text-decoration: none; }
        .related-card h4 a:hover { color: var(--accent); }
        .related-card .card-excerpt {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 10px;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .related-card .card-meta i { font-size: 0.75rem; }
        @media (max-width: 900px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; }
            .related-section { padding: 32px 0; }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--primary);
            padding: 56px 0;
            text-align: center;
            color: var(--text-white);
        }
        .cta-section h2 {
            color: #ffffff;
            font-size: 1.8rem;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .button {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            border: none;
            text-decoration: none;
        }
        .cta-section .button-primary {
            background: var(--secondary);
            color: var(--primary-dark);
        }
        .cta-section .button-primary:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232,160,32,0.35);
        }
        .cta-section .button-outline {
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255,255,255,0.30);
        }
        .cta-section .button-outline:hover {
            background: rgba(255,255,255,0.10);
            border-color: rgba(255,255,255,0.60);
            transform: translateY(-2px);
        }
        @media (max-width: 520px) {
            .cta-section { padding: 40px 0; }
            .cta-section h2 { font-size: 1.4rem; }
            .cta-section p { font-size: 0.95rem; }
            .cta-section .button { padding: 12px 24px; font-size: 0.9rem; width: 100%; justify-content: center; }
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--bg-white);
            padding: 48px 0;
        }
        .faq-section .section-title {
            font-size: 1.5rem;
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .faq-section .section-title i { color: var(--secondary); }
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--border-color); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            background: var(--bg-body);
            transition: background var(--transition);
            user-select: none;
        }
        .faq-question:hover { background: var(--border-light); }
        .faq-question i { color: var(--secondary); font-size: 0.85rem; transition: transform var(--transition); }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 22px 16px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show { display: block; }
        .faq-answer p:last-child { margin-bottom: 0; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.80);
            padding: 48px 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .site-footer .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand .logo i { color: var(--secondary); font-size: 1.4rem; }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            line-height: 1.6;
            max-width: 320px;
        }
        .site-footer .footer-col h5 {
            color: #ffffff;
            font-size: 0.95rem;
            margin-bottom: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-col a:hover { color: var(--secondary); }
        .site-footer .footer-col a i { width: 20px; margin-right: 4px; }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
            flex-wrap: wrap;
            gap: 8px;
        }
        .site-footer .footer-bottom span { line-height: 1.4; }
        @media (max-width: 900px) {
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .site-footer { padding: 32px 0 0; }
            .site-footer .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }

        /* ===== Foundation Overrides ===== */
        .button { margin-bottom: 0; }
        .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }
        @media (max-width: 520px) {
            .grid-container { padding-left: 16px; padding-right: 16px; }
        }

        /* ===== Print ===== */
        @media print {
            .nav-channels, .cta-section, .related-section, .site-footer, .breadcrumb-area { display: none; }
            .article-header { padding: 20px 0; }
            .article-content-wrap { padding: 20px 0; }
            body { background: #ffffff; }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --accent: #e8b830;
            --accent-light: #f0d060;
            --accent-dark: #c9a020;
            --bg-body: #f5f6fa;
            --bg-card: #ffffff;
            --bg-section-alt: #eef0f7;
            --bg-dark: #0d1117;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8888a0;
            --text-inverse: #ffffff;
            --border-light: #e2e4ed;
            --border-accent: #e8b830;
            --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(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --shadow-accent: 0 6px 24px rgba(232,184,48,0.30);
            --transition: all 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-h: 68px;
            --nav-channel-h: 52px;
            --total-header-h: calc(var(--header-h) + var(--nav-channel-h));
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            padding-top: var(--total-header-h);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover, a:focus {
            color: var(--accent-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        ul, ol {
            list-style: none;
        }
        h1, h2, h3, h4, h5, h6 {
            line-height: 1.3;
            color: var(--primary-dark);
            font-weight: 700;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 880px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 头部 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--primary-dark);
            box-shadow: 0 2px 16px rgba(0,0,0,0.25);
        }
        .header-main {
            height: var(--header-h);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-inverse);
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .logo i {
            font-size: 1.8rem;
            color: var(--accent);
        }
        .logo span {
            background: linear-gradient(135deg, #fff 60%, var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.92;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .header-actions .search-box {
            display: flex;
            align-items: center;
            background: rgba(255,255,255,0.12);
            border-radius: 30px;
            padding: 4px 4px 4px 16px;
            border: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }
        .header-actions .search-box:focus-within {
            background: rgba(255,255,255,0.20);
            border-color: var(--accent);
        }
        .header-actions .search-box input {
            background: transparent;
            border: none;
            color: var(--text-inverse);
            padding: 6px 0;
            width: 140px;
            font-size: 0.9rem;
        }
        .header-actions .search-box input::placeholder {
            color: rgba(255,255,255,0.5);
        }
        .header-actions .search-box button {
            background: var(--accent);
            border: none;
            color: var(--primary-dark);
            width: 34px;
            height: 34px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .header-actions .search-box button:hover {
            background: var(--accent-light);
            transform: scale(1.05);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-inverse);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px;
        }

        /* ===== 频道导航 ===== */
        .nav-channels {
            background: var(--primary);
            border-top: 1px solid rgba(255,255,255,0.06);
            height: var(--nav-channel-h);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .nav-channels::-webkit-scrollbar {
            display: none;
        }
        .nav-channels-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }
        .nav-channels-inner a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            color: rgba(255,255,255,0.80);
            font-size: 0.95rem;
            font-weight: 500;
            border-radius: 30px;
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .nav-channels-inner a i {
            font-size: 0.9rem;
            opacity: 0.7;
        }
        .nav-channels-inner a:hover {
            color: #fff;
            background: rgba(255,255,255,0.12);
        }
        .nav-channels-inner a.active {
            color: var(--primary-dark);
            background: var(--accent);
            font-weight: 700;
            box-shadow: 0 2px 12px rgba(232,184,48,0.35);
        }
        .nav-channels-inner a.active i {
            opacity: 1;
        }

        /* ===== 页面头部 ===== */
        .page-header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 56px 0 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .page-header::after {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            pointer-events: none;
        }
        .page-header .container {
            position: relative;
            z-index: 1;
        }
        .page-header h1 {
            font-size: 2.8rem;
            color: var(--text-inverse);
            margin-bottom: 12px;
            font-weight: 800;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(0,0,0,0.2);
        }
        .page-header h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .page-header .breadcrumb {
            color: rgba(255,255,255,0.70);
            font-size: 0.95rem;
            margin-bottom: 14px;
        }
        .page-header .breadcrumb a {
            color: var(--accent-light);
        }
        .page-header .breadcrumb a:hover {
            color: #fff;
        }
        .page-header .sub-desc {
            color: rgba(255,255,255,0.85);
            font-size: 1.15rem;
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .page-header .stats-row {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .page-header .stats-row .stat-item {
            text-align: center;
            color: var(--text-inverse);
        }
        .page-header .stats-row .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
        }
        .page-header .stats-row .stat-item .label {
            font-size: 0.9rem;
            opacity: 0.80;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-inverse);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }
        .section-title h2 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .section-title p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 580px;
            margin: 0 auto;
        }
        .section-title .badge-line {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 2px 16px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        /* ===== 卡片通用 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 22px 24px 26px;
        }
        .card-body .tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 2px 14px;
            border-radius: 30px;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }
        .card-body h3 {
            font-size: 1.25rem;
            margin-bottom: 8px;
            color: var(--primary-dark);
            font-weight: 700;
        }
        .card-body h3 a {
            color: inherit;
        }
        .card-body h3 a:hover {
            color: var(--primary-light);
        }
        .card-body p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .card-body .meta {
            display: flex;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .card-body .meta i {
            margin-right: 4px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: var(--shadow-accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(232,184,48,0.40);
            color: var(--primary-dark);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary-light);
            border: 2px solid var(--primary-light);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-light {
            background: var(--text-inverse);
            color: var(--primary-dark);
        }
        .btn-light:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.9rem;
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            background: var(--bg-section-alt);
            color: var(--text-secondary);
        }
        .badge-accent {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-list a {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .tag-list a:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .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;
        }

        /* ===== 图文列表 ===== */
        .list-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            align-items: flex-start;
        }
        .list-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .list-card .num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
        }
        .list-card .content h4 {
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .list-card .content p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--primary-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            color: var(--accent);
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
        }
        .cta-section h2 {
            color: var(--text-inverse);
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.80);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
            font-size: 1.3rem;
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.60);
        }
        .footer-col h5 {
            color: var(--text-inverse);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.60);
            font-size: 0.92rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col a i {
            margin-right: 8px;
            color: var(--accent);
            width: 18px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.40);
        }

        /* ===== 分类标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 20px;
        }
        .tag-cloud a {
            padding: 8px 24px;
            border-radius: 30px;
            background: rgba(255,255,255,0.10);
            color: rgba(255,255,255,0.85);
            font-size: 0.95rem;
            font-weight: 500;
            border: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }
        .tag-cloud a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== 步骤区块 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .step-card .step-icon {
            width: 64px;
            height: 64px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(232,184,48,0.25);
        }
        .step-card h4 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--primary-dark);
        }
        .step-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.6;
        }
        .step-card .step-num {
            position: absolute;
            top: -12px;
            right: -12px;
            background: var(--primary);
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.9rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
        }

        /* ===== 统计数字 ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-card .stat-label {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-top: 6px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: calc(var(--header-h) + var(--nav-channel-h));
            }
            .header-actions .search-box input {
                width: 100px;
            }
            .menu-toggle {
                display: block;
            }
            .nav-channels-inner {
                gap: 2px;
                padding: 0 12px;
            }
            .nav-channels-inner a {
                padding: 6px 14px;
                font-size: 0.85rem;
            }
            .nav-channels-inner a i {
                display: none;
            }
            .page-header h1 {
                font-size: 2rem;
            }
            .page-header .sub-desc {
                font-size: 1rem;
            }
            .page-header .stats-row {
                gap: 20px;
            }
            .page-header .stats-row .stat-item .num {
                font-size: 1.6rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .grid-2, .grid-3, .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .list-card {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .list-card .num {
                margin: 0 auto;
            }
            .tag-cloud a {
                font-size: 0.85rem;
                padding: 6px 16px;
            }
            .page-header .stats-row .stat-item .num {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .header-main {
                padding: 0 14px;
            }
            .header-actions .search-box input {
                width: 72px;
                font-size: 0.8rem;
            }
            .header-actions .search-box {
                padding: 2px 2px 2px 10px;
            }
            .header-actions .search-box button {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
            .nav-channels-inner a {
                font-size: 0.78rem;
                padding: 4px 10px;
            }
            .page-header {
                padding: 36px 0 32px;
            }
            .page-header h1 {
                font-size: 1.5rem;
            }
            .section-title h2 {
                font-size: 1.4rem;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .card-body h3 {
                font-size: 1.1rem;
            }
            .btn {
                padding: 10px 24px;
                font-size: 0.9rem;
            }
            .stat-card .stat-num {
                font-size: 1.8rem;
            }
            .step-card {
                padding: 24px 18px;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-20 { margin-top: 20px; }
        .mt-40 { margin-top: 40px; }
        .mb-20 { margin-bottom: 20px; }
        .gap-16 { gap: 16px; }
        .flex-center {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .d-none { display: none; }

        /* ===== 文章列表卡片增强 ===== */
        .post-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .post-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .post-card .thumb {
            flex: 0 0 200px;
            background: var(--bg-section-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.8rem;
            color: var(--primary-light);
            min-height: 150px;
        }
        .post-card .info {
            flex: 1;
            padding: 20px 24px 20px 0;
        }
        .post-card .info h3 {
            font-size: 1.2rem;
            margin-bottom: 6px;
        }
        .post-card .info .meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
            margin-bottom: 8px;
        }
        .post-card .info p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .post-card {
                flex-direction: column;
            }
            .post-card .thumb {
                flex: 0 0 120px;
                min-height: 120px;
            }
            .post-card .info {
                padding: 0 18px 18px;
            }
        }

/* roulang page: category3 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0f2345;
            --secondary: #e8a838;
            --secondary-light: #f0c060;
            --secondary-dark: #c88a20;
            --accent: #2a9e6f;
            --accent-light: #3abf8a;
            --bg-body: #f5f7fc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-light: #eef2f7;
            --bg-dark: #0f2345;
            --text-dark: #1a1a2e;
            --text-body: #2d3748;
            --text-light: #5a6a7a;
            --text-muted: #8a9aaa;
            --text-white: #f0f4ff;
            --border-light: #e2e8f0;
            --border-card: #e8edf4;
            --shadow-sm: 0 2px 8px rgba(26, 58, 107, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 58, 107, 0.08);
            --shadow-lg: 0 12px 40px rgba(26, 58, 107, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-top-height: 56px;
            --nav-height: 52px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== Utility Classes ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 2.5rem;
            line-height: 1.6;
        }
        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .mb-3 {
            margin-bottom: 1.5rem;
        }
        .mb-4 {
            margin-bottom: 2rem;
        }
        .mb-5 {
            margin-bottom: 3rem;
        }
        .mt-2 {
            margin-top: 1rem;
        }
        .mt-3 {
            margin-top: 1.5rem;
        }
        .mt-4 {
            margin-top: 2rem;
        }
        .mt-5 {
            margin-top: 3rem;
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        .gap-3 {
            gap: 1.5rem;
        }
        .gap-4 {
            gap: 2rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 2rem;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 1.5rem;
        }
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .grid-3 {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header & Top Bar ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-top-height);
            padding: 0 24px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.02em;
        }
        .logo i {
            font-size: 1.6rem;
            color: var(--secondary);
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover span {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-actions .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 40px;
            padding: 0 14px;
            height: 36px;
            border: 1px solid transparent;
            transition: border var(--transition), background var(--transition);
        }
        .header-actions .search-box:focus-within {
            border-color: var(--primary-light);
            background: var(--bg-white);
        }
        .header-actions .search-box input {
            border: none;
            background: transparent;
            padding: 0 8px;
            font-size: 0.9rem;
            color: var(--text-dark);
            width: 140px;
            outline: none;
        }
        .header-actions .search-box input::placeholder {
            color: var(--text-muted);
        }
        .header-actions .search-box button {
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
            padding: 4px;
            font-size: 0.95rem;
            transition: color var(--transition);
        }
        .header-actions .search-box button:hover {
            color: var(--primary);
        }
        .header-actions .btn-cta {
            background: var(--secondary);
            color: var(--primary-dark);
            padding: 8px 20px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-actions .btn-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(232, 168, 56, 0.35);
        }
        .header-actions .btn-cta:active {
            transform: translateY(0);
        }

        /* ===== Navigation Channels ===== */
        .nav-channels {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            padding: 0 24px;
        }
        .nav-channels-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: flex;
            align-items: center;
            gap: 4px;
            height: var(--nav-height);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .nav-channels-inner::-webkit-scrollbar {
            display: none;
        }
        .nav-channels-inner a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 40px;
            white-space: nowrap;
            transition: background var(--transition), color var(--transition);
            text-decoration: none;
        }
        .nav-channels-inner a i {
            font-size: 0.85rem;
        }
        .nav-channels-inner a:hover {
            background: var(--bg-light);
            color: var(--primary);
        }
        .nav-channels-inner a.active {
            background: var(--primary);
            color: var(--text-white);
            font-weight: 600;
            box-shadow: 0 2px 12px rgba(26, 58, 107, 0.2);
        }
        .nav-channels-inner a.active:hover {
            background: var(--primary-light);
        }

        /* ===== Mobile Toggle ===== */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--primary-dark);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background var(--transition);
        }
        .mobile-toggle:hover {
            background: var(--bg-light);
        }
        @media (max-width: 768px) {
            .header-actions .search-box input {
                width: 80px;
            }
            .header-actions .btn-cta span {
                display: none;
            }
            .nav-channels-inner {
                gap: 2px;
            }
            .nav-channels-inner a {
                padding: 6px 14px;
                font-size: 0.82rem;
            }
        }
        @media (max-width: 520px) {
            .header-top {
                padding: 0 12px;
            }
            .logo {
                font-size: 1.1rem;
                gap: 6px;
            }
            .logo i {
                font-size: 1.2rem;
            }
            .header-actions .search-box input {
                width: 60px;
                font-size: 0.8rem;
            }
            .header-actions .btn-cta {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .nav-channels {
                padding: 0 12px;
            }
            .nav-channels-inner a {
                padding: 5px 10px;
                font-size: 0.78rem;
                gap: 4px;
            }
            .nav-channels-inner a i {
                font-size: 0.7rem;
            }
        }

        /* ===== Hero (分类页首屏) ===== */
        .category-hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 4rem 0 3.5rem;
            position: relative;
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            color: var(--text-white);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .category-hero .hero-badge i {
            color: var(--secondary);
        }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 1rem;
            letter-spacing: -0.025em;
            line-height: 1.2;
        }
        .category-hero h1 i {
            color: var(--secondary);
            margin-right: 8px;
        }
        .category-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .category-hero .hero-stats {
            display: flex;
            justify-content: center;
            gap: 2.5rem;
            flex-wrap: wrap;
            margin-top: 1.5rem;
        }
        .category-hero .hero-stats .stat {
            text-align: center;
            color: var(--text-white);
        }
        .category-hero .hero-stats .stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--secondary);
            display: block;
            line-height: 1.2;
        }
        .category-hero .hero-stats .stat .label {
            font-size: 0.85rem;
            opacity: 0.75;
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .category-hero {
                padding: 2.8rem 0 2.5rem;
            }
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .category-hero p {
                font-size: 0.98rem;
            }
            .category-hero .hero-stats {
                gap: 1.5rem;
            }
            .category-hero .hero-stats .stat .num {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero .hero-stats .stat .num {
                font-size: 1.2rem;
            }
        }

        /* ===== Sections ===== */
        .section-block {
            padding: 4rem 0;
        }
        .section-block.bg-light {
            background: var(--bg-light);
        }
        .section-block.bg-white {
            background: var(--bg-white);
        }
        .section-block.bg-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-block.bg-dark .section-title {
            color: var(--text-white);
        }
        .section-block.bg-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            padding: 1.5rem;
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
            transition: background var(--transition), color var(--transition);
        }
        .card:hover .card-icon {
            background: var(--primary);
            color: var(--text-white);
        }
        .card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.5rem;
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
        }
        .card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 1rem;
        }
        .card .card-tags .tag {
            background: var(--bg-light);
            padding: 3px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            color: var(--text-light);
            font-weight: 500;
        }
        .card .card-link {
            margin-top: 1rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .card .card-link:hover {
            gap: 10px;
            color: var(--primary);
        }

        /* ===== Feature / Icon Grid ===== */
        .icon-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
        }
        .icon-grid .icon-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.8rem 1.5rem;
            text-align: center;
            border: 1px solid var(--border-card);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .icon-grid .icon-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .icon-grid .icon-item .ii-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            margin: 0 auto 1rem;
            transition: background var(--transition), color var(--transition);
        }
        .icon-grid .icon-item:hover .ii-icon {
            background: var(--primary);
            color: var(--text-white);
        }
        .icon-grid .icon-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.3rem;
        }
        .icon-grid .icon-item p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* ===== Steps / Timeline ===== */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            max-width: 720px;
            margin: 0 auto;
        }
        .step-item {
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
            background: var(--bg-card);
            padding: 1.2rem 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .step-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }
        .step-item .step-num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
        }
        .step-item .step-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.2rem;
        }
        .step-item .step-content p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* ===== Accordion / FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary-dark);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
            transition: background var(--transition);
        }
        .faq-item .faq-q:hover {
            background: var(--bg-light);
        }
        .faq-item .faq-q i {
            color: var(--primary-light);
            font-size: 1.1rem;
            transition: transform var(--transition);
        }
        .faq-item.active .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 3.5rem 2rem;
            border-radius: var(--radius-lg);
            text-align: center;
            color: var(--text-white);
            box-shadow: var(--shadow-lg);
        }
        .cta-block h3 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        .cta-block p {
            font-size: 1.05rem;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 1.8rem;
            line-height: 1.6;
        }
        .cta-block .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--secondary);
            color: var(--primary-dark);
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
        }
        .cta-block .btn-cta-large:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(232, 168, 56, 0.35);
        }
        .cta-block .btn-cta-large:active {
            transform: translateY(0);
        }
        @media (max-width: 768px) {
            .cta-block {
                padding: 2.5rem 1.5rem;
            }
            .cta-block h3 {
                font-size: 1.5rem;
            }
            .cta-block .btn-cta-large {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }

        /* ===== Newsletter / Form ===== */
        .newsletter-box {
            display: flex;
            max-width: 500px;
            margin: 0 auto;
            gap: 0;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            background: var(--bg-white);
        }
        .newsletter-box input {
            flex: 1;
            border: none;
            padding: 14px 20px;
            font-size: 0.95rem;
            color: var(--text-dark);
            background: var(--bg-white);
            outline: none;
        }
        .newsletter-box input::placeholder {
            color: var(--text-muted);
        }
        .newsletter-box button {
            background: var(--secondary);
            color: var(--primary-dark);
            border: none;
            padding: 14px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background var(--transition);
            white-space: nowrap;
        }
        .newsletter-box button:hover {
            background: var(--secondary-light);
        }
        @media (max-width: 520px) {
            .newsletter-box {
                flex-direction: column;
                border-radius: var(--radius-md);
            }
            .newsletter-box input {
                border-radius: 0;
                text-align: center;
            }
            .newsletter-box button {
                border-radius: 0;
                padding: 12px;
            }
        }

        /* ===== Security Tips / Alert Cards ===== */
        .tip-card {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            background: var(--bg-card);
            padding: 1.2rem 1.5rem;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--secondary);
            box-shadow: var(--shadow-sm);
            margin-bottom: 1rem;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .tip-card:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }
        .tip-card .tip-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(232, 168, 56, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary-dark);
            font-size: 1.1rem;
        }
        .tip-card .tip-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.2rem;
        }
        .tip-card .tip-content p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 3.5rem 0 1.5rem;
            margin-top: auto;
            border-top: 4px solid var(--secondary);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .site-footer .footer-brand .logo {
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        .site-footer .footer-brand .logo span {
            background: none;
            -webkit-text-fill-color: var(--text-white);
            color: var(--text-white);
        }
        .site-footer .footer-brand .logo i {
            color: var(--secondary);
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 320px;
        }
        .site-footer .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1.2rem;
            position: relative;
            padding-bottom: 0.6rem;
        }
        .site-footer .footer-col h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .site-footer .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .site-footer .footer-col a i {
            margin-right: 6px;
            width: 18px;
            text-align: center;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .site-footer .footer-bottom span:last-child {
            opacity: 0.6;
            font-weight: 300;
        }
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .site-footer .footer-brand p {
                max-width: 100%;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Page Inner Specifics ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            padding: 1rem 0 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Responsive fine-tune ===== */
        @media (max-width: 520px) {
            .section-block {
                padding: 2.5rem 0;
            }
            .icon-grid {
                grid-template-columns: 1fr;
            }
            .step-item {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .step-item .step-num {
                margin: 0 auto;
            }
            .tip-card {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .tip-card .tip-icon {
                margin: 0 auto;
            }
            .faq-item .faq-q {
                font-size: 0.92rem;
                padding: 1rem 1.2rem;
            }
            .faq-item .faq-a {
                font-size: 0.88rem;
                padding: 0 1.2rem 1rem;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }