/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --primary-dark: #0f0f1a;
            --accent: #f0c040;
            --accent-dark: #d4a820;
            --accent-light: #f8d76a;
            --bg-dark: #0f0f1a;
            --bg-card: rgba(30, 30, 58, 0.92);
            --bg-card-hover: rgba(40, 40, 72, 0.96);
            --bg-section: #14142a;
            --text-white: #ffffff;
            --text-light: #d0d0e0;
            --text-muted: #9a9ab0;
            --border-color: rgba(240, 192, 64, 0.15);
            --border-accent: rgba(240, 192, 64, 0.35);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 4px 20px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 40px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 60px rgba(0,0,0,0.5);
            --shadow-accent: 0 4px 30px rgba(240,192,64,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --gap-section: 100px;
            --gap-block: 60px;
        }

        /* ===== 基础重置 ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-base);
            background: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-light); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-white); }
        h1 { font-size: clamp(2.2rem, 5.5vw, 4.2rem); }
        h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
        h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
        p { color: var(--text-light); margin-bottom: 0; }
        .container { max-width: 1200px; padding: 0 24px; margin: 0 auto; }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(15, 15, 26, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(15, 15, 26, 0.96); box-shadow: var(--shadow-md); }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            height: 72px; padding: 0 24px; max-width: 1200px; margin: 0 auto;
        }
        .site-logo {
            font-size: 1.5rem; font-weight: 800; color: var(--text-white);
            display: flex; align-items: center; gap: 10px;
            letter-spacing: -0.5px;
        }
        .site-logo i { color: var(--accent); font-size: 1.6rem; }
        .site-logo span { background: linear-gradient(135deg, var(--accent), var(--accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-list { display: flex; align-items: center; gap: 8px; }
        .nav-list a {
            color: var(--text-light); font-size: 0.95rem; font-weight: 500;
            padding: 8px 18px; border-radius: var(--radius-sm);
            transition: var(--transition); position: relative;
        }
        .nav-list a:hover,
        .nav-list a.active { color: var(--text-white); background: rgba(240,192,64,0.1); }
        .nav-list a.active { color: var(--accent); }
        .nav-toggle { display: none; background: none; border: none; color: var(--text-white); font-size: 1.5rem; cursor: pointer; padding: 8px; }
        .nav-cta {
            background: var(--accent); color: var(--primary-dark) !important;
            font-weight: 700; padding: 10px 24px !important; border-radius: var(--radius-sm) !important;
        }
        .nav-cta:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: var(--shadow-accent); }

        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-list {
                position: fixed; top: 72px; left: 0; right: 0;
                background: rgba(15,15,26,0.98); backdrop-filter: blur(20px);
                flex-direction: column; padding: 24px; gap: 4px;
                transform: translateY(-120%); opacity: 0;
                transition: var(--transition); pointer-events: none;
                border-bottom: 1px solid var(--border-color);
            }
            .nav-list.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-list a { width: 100%; padding: 14px 20px; font-size: 1.05rem; }
            .nav-cta { text-align: center; margin-top: 8px; }
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh;
            display: flex; align-items: center; justify-content: center;
            position: relative; overflow: hidden;
            padding: 120px 24px 80px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(15,15,26,0.88) 0%, rgba(26,26,46,0.72) 50%, rgba(15,15,26,0.88) 100%);
            z-index: 1;
        }
        .hero::after {
            content: ''; position: absolute; inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(240,192,64,0.06) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-content { position: relative; z-index: 2; text-align: center; max-width: 820px; }
        .hero-badge {
            display: inline-block; background: rgba(240,192,64,0.12);
            border: 1px solid var(--border-accent); color: var(--accent);
            padding: 6px 20px; border-radius: 50px; font-size: 0.85rem; font-weight: 600;
            margin-bottom: 24px; letter-spacing: 0.5px;
        }
        .hero h1 { margin-bottom: 20px; font-weight: 800; }
        .hero h1 .highlight { background: linear-gradient(135deg, var(--accent), var(--accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero p { font-size: 1.2rem; color: var(--text-light); margin-bottom: 36px; max-width: 640px; margin-left: auto; margin-right: auto; }
        .hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .btn-accent {
            display: inline-flex; align-items: center; gap: 10px;
            background: var(--accent); color: var(--primary-dark);
            padding: 16px 36px; border-radius: var(--radius-sm);
            font-weight: 700; font-size: 1.05rem;
            transition: var(--transition); border: none; cursor: pointer;
        }
        .btn-accent:hover { background: var(--accent-light); transform: translateY(-3px); box-shadow: var(--shadow-accent); color: var(--primary-dark); }
        .btn-outline {
            display: inline-flex; align-items: center; gap: 10px;
            background: transparent; color: var(--text-white);
            padding: 16px 36px; border-radius: var(--radius-sm);
            font-weight: 600; font-size: 1.05rem;
            border: 2px solid rgba(255,255,255,0.25);
            transition: var(--transition); cursor: pointer;
        }
        .btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(240,192,64,0.05); transform: translateY(-3px); }
        .hero-stats { display: flex; gap: 40px; justify-content: center; margin-top: 56px; flex-wrap: wrap; }
        .hero-stat { text-align: center; }
        .hero-stat-num { font-size: 2.2rem; font-weight: 800; color: var(--accent); display: block; }
        .hero-stat-label { font-size: 0.9rem; color: var(--text-muted); margin-top: 4px; }

        /* ===== 通用板块 ===== */
        .section { padding: var(--gap-section) 0; position: relative; }
        .section-alt { background: var(--bg-section); }
        .section-dark { background: var(--primary-dark); }
        .section-header { text-align: center; margin-bottom: var(--gap-block); }
        .section-header h2 { margin-bottom: 16px; }
        .section-header p { max-width: 600px; margin: 0 auto; color: var(--text-muted); font-size: 1.1rem; }
        .section-tag {
            display: inline-block; background: rgba(240,192,64,0.08);
            border: 1px solid var(--border-accent); color: var(--accent);
            padding: 4px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: 600;
            margin-bottom: 16px; letter-spacing: 0.5px;
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--bg-card); border: 1px solid var(--border-color);
            border-radius: var(--radius); padding: 32px 28px;
            transition: var(--transition); height: 100%;
        }
        .card-custom:hover { background: var(--bg-card-hover); transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border-accent); }
        .card-icon { width: 56px; height: 56px; background: rgba(240,192,64,0.1); border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--accent); margin-bottom: 20px; }
        .card-custom h3 { margin-bottom: 12px; font-size: 1.25rem; }
        .card-custom p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; }
        .card-cover {
            border-radius: var(--radius); overflow: hidden;
            background: var(--bg-card); border: 1px solid var(--border-color);
            transition: var(--transition); height: 100%;
        }
        .card-cover:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border-accent); }
        .card-cover-img { width: 100%; height: 200px; object-fit: cover; }
        .card-cover-body { padding: 20px 24px 24px; }
        .card-cover-body h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .card-cover-body p { color: var(--text-muted); font-size: 0.9rem; }
        .card-tag {
            display: inline-block; background: rgba(240,192,64,0.08);
            color: var(--accent); padding: 2px 12px; border-radius: 50px;
            font-size: 0.75rem; font-weight: 600; margin-bottom: 10px;
        }

        /* ===== 分类入口 ===== */
        .category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
        .category-card {
            background: var(--bg-card); border: 1px solid var(--border-color);
            border-radius: var(--radius); padding: 32px 24px;
            text-align: center; transition: var(--transition); cursor: pointer;
        }
        .category-card:hover { background: var(--bg-card-hover); transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border-accent); }
        .category-card i { font-size: 2.4rem; color: var(--accent); margin-bottom: 16px; display: block; }
        .category-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
        .category-card p { font-size: 0.9rem; color: var(--text-muted); }
        .category-card .badge-count {
            display: inline-block; background: rgba(240,192,64,0.12);
            color: var(--accent); padding: 2px 14px; border-radius: 50px;
            font-size: 0.75rem; font-weight: 600; margin-top: 12px;
        }

        /* ===== 最新资讯列表 ===== */
        .post-list { display: flex; flex-direction: column; gap: 16px; }
        .post-item {
            display: flex; align-items: center; gap: 20px;
            background: var(--bg-card); border: 1px solid var(--border-color);
            border-radius: var(--radius-sm); padding: 20px 24px;
            transition: var(--transition); cursor: pointer;
        }
        .post-item:hover { background: var(--bg-card-hover); border-color: var(--border-accent); transform: translateX(6px); }
        .post-item .post-num { font-size: 1.2rem; font-weight: 800; color: var(--accent); opacity: 0.5; min-width: 36px; }
        .post-item .post-info { flex: 1; }
        .post-item .post-info h4 { font-size: 1.05rem; margin-bottom: 4px; font-weight: 600; }
        .post-item .post-info p { font-size: 0.85rem; color: var(--text-muted); }
        .post-item .post-meta { display: flex; gap: 16px; align-items: center; font-size: 0.8rem; color: var(--text-muted); margin-top: 6px; }
        .post-item .post-meta i { margin-right: 4px; }
        .post-item .post-tag {
            background: rgba(240,192,64,0.08); color: var(--accent);
            padding: 2px 12px; border-radius: 50px; font-size: 0.7rem; font-weight: 600;
        }

        /* ===== 流程 ===== */
        .steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 32px; position: relative; }
        .step-item { text-align: center; position: relative; padding: 32px 16px; }
        .step-num {
            width: 56px; height: 56px; margin: 0 auto 20px;
            background: rgba(240,192,64,0.1); border: 2px solid var(--border-accent);
            border-radius: 50%; display: flex; align-items: center; justify-content: center;
            font-size: 1.3rem; font-weight: 800; color: var(--accent);
        }
        .step-item h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .step-item p { font-size: 0.9rem; color: var(--text-muted); }
        .step-connector { display: none; }
        @media (min-width: 768px) {
            .steps { position: relative; }
            .step-connector {
                display: block; position: absolute; top: 44px; left: 15%; right: 15%;
                height: 2px; background: linear-gradient(90deg, var(--border-accent), transparent);
                z-index: 0;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 32px; }
        .stat-item {
            text-align: center; padding: 32px 16px;
            background: var(--bg-card); border: 1px solid var(--border-color);
            border-radius: var(--radius); transition: var(--transition);
        }
        .stat-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); border-color: var(--border-accent); }
        .stat-item i { font-size: 2rem; color: var(--accent); margin-bottom: 12px; }
        .stat-item .num { font-size: 2.8rem; font-weight: 800; color: var(--text-white); display: block; }
        .stat-item .label { font-size: 0.95rem; color: var(--text-muted); margin-top: 4px; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card); border: 1px solid var(--border-color);
            border-radius: var(--radius-sm); overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border-accent); }
        .faq-question {
            padding: 20px 24px; display: flex; justify-content: space-between;
            align-items: center; cursor: pointer; font-weight: 600;
            font-size: 1.05rem; color: var(--text-white);
            background: none; border: none; width: 100%; text-align: left;
            transition: var(--transition);
        }
        .faq-question i { color: var(--accent); transition: var(--transition); font-size: 0.9rem; }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 20px; color: var(--text-muted); font-size: 0.95rem;
            line-height: 1.8; display: none;
        }
        .faq-answer.show { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border: 1px solid var(--border-accent); border-radius: var(--radius-lg);
            padding: 64px 48px; text-align: center; position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(240,192,64,0.06) 0%, transparent 70%);
        }
        .cta-section h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); margin-bottom: 16px; position: relative; }
        .cta-section p { font-size: 1.1rem; color: var(--text-light); margin-bottom: 32px; max-width: 540px; margin-left: auto; margin-right: auto; position: relative; }
        .cta-section .btn-accent { font-size: 1.1rem; padding: 18px 44px; position: relative; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark); border-top: 1px solid var(--border-color);
            padding: 48px 24px 32px;
        }
        .footer-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
        .footer-brand .site-logo { margin-bottom: 12px; }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); max-width: 320px; line-height: 1.8; }
        .footer-col h4 { font-size: 1rem; font-weight: 700; margin-bottom: 16px; color: var(--text-white); }
        .footer-col a { display: block; font-size: 0.9rem; color: var(--text-muted); padding: 4px 0; }
        .footer-col a:hover { color: var(--accent); }
        .footer-bottom { max-width: 1200px; margin: 32px auto 0; padding-top: 24px; border-top: 1px solid var(--border-color); text-align: center; font-size: 0.85rem; color: var(--text-muted); }

        @media (max-width: 768px) {
            .footer-inner { grid-template-columns: 1fr; gap: 32px; }
            .hero { min-height: 80vh; padding: 100px 20px 60px; }
            .section { padding: 60px 0; }
            .cta-section { padding: 40px 24px; }
            .post-item { flex-direction: column; align-items: flex-start; gap: 8px; }
            .post-item .post-num { display: none; }
            .hero-stats { gap: 24px; }
        }

        @media (max-width: 520px) {
            .header-inner { padding: 0 16px; }
            .hero h1 { font-size: 1.8rem; }
            .hero p { font-size: 1rem; }
            .btn-accent, .btn-outline { padding: 14px 28px; font-size: 0.95rem; width: 100%; justify-content: center; }
            .hero-actions { flex-direction: column; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .category-grid { grid-template-columns: 1fr; }
            .steps { grid-template-columns: 1fr; }
            .section-header h2 { font-size: 1.6rem; }
            .cta-section h2 { font-size: 1.5rem; }
        }

        /* ===== 文章页样式 ===== */
        .article-hero {
            padding: 140px 24px 60px;
            background: var(--primary-dark);
            border-bottom: 1px solid var(--border-color);
        }
        .article-hero .container { max-width: 800px; }
        .article-hero .post-tag { margin-bottom: 16px; }
        .article-hero h1 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); margin-bottom: 16px; }
        .article-hero .meta { display: flex; gap: 24px; font-size: 0.9rem; color: var(--text-muted); flex-wrap: wrap; }
        .article-hero .meta i { margin-right: 6px; }
        .article-body { padding: 60px 24px 80px; }
        .article-body .container { max-width: 800px; }
        .article-content { font-size: 1.05rem; line-height: 2; color: var(--text-light); }
        .article-content p { margin-bottom: 20px; }
        .article-content img { border-radius: var(--radius-sm); margin: 32px 0; }
        .article-back { margin-top: 48px; display: inline-flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: 0.95rem; }
        .article-back:hover { color: var(--accent); }

        /* ===== 分类页样式 ===== */
        .category-hero {
            padding: 140px 24px 60px;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
        }
        .category-hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(15,15,26,0.9) 0%, rgba(26,26,46,0.7) 100%);
        }
        .category-hero .container { position: relative; z-index: 1; text-align: center; }
        .category-hero h1 { font-size: clamp(2rem, 4vw, 3.2rem); margin-bottom: 16px; }
        .category-hero p { max-width: 600px; margin: 0 auto; color: var(--text-light); font-size: 1.1rem; }

        /* ===== 空状态 ===== */
        .empty-state { text-align: center; padding: 60px 24px; color: var(--text-muted); }
        .empty-state i { font-size: 3rem; color: var(--text-muted); opacity: 0.3; margin-bottom: 16px; display: block; }
        .empty-state p { font-size: 1.1rem; }

/* roulang page: article */
:root {
            --primary: #0d6efd;
            --primary-dark: #0a58ca;
            --primary-light: #6ea8fe;
            --accent: #fd7e14;
            --accent-light: #ffc107;
            --bg-dark: #0b0e17;
            --bg-darker: #060910;
            --bg-card: #131826;
            --bg-card-hover: #1a2035;
            --bg-section: #0f1420;
            --text-light: #f0f4ff;
            --text-muted: #8a94a6;
            --text-soft: #b8c4d8;
            --border-color: #1e2840;
            --border-light: #2a3650;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
            --shadow-hover: 0 16px 60px rgba(13, 110, 253, 0.25);
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #fff;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 14, 23, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(30, 40, 64, 0.6);
            transition: var(--transition);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.3px;
        }
        .site-logo i {
            color: var(--accent-light);
            font-size: 1.5rem;
        }
        .site-logo:hover {
            color: #fff;
            text-decoration: none;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            color: var(--text-soft);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-list a.active {
            color: #fff;
            background: rgba(13, 110, 253, 0.2);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }
        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 4px 20px rgba(13, 110, 253, 0.35);
        }
        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(13, 110, 253, 0.5);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }
        .page-banner {
            margin-top: 72px;
            padding: 60px 0 50px;
            background: linear-gradient(160deg, var(--bg-darker) 0%, var(--bg-section) 60%, var(--bg-dark) 100%);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(13, 110, 253, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner .banner-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }
        .page-banner .banner-category {
            display: inline-block;
            padding: 4px 18px;
            border-radius: 50px;
            background: rgba(13, 110, 253, 0.2);
            color: var(--primary-light);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            border: 1px solid rgba(13, 110, 253, 0.2);
        }
        .page-banner .banner-date {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .page-banner .banner-date i {
            margin-right: 6px;
        }
        .page-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            max-width: 900px;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: var(--text-soft);
            max-width: 720px;
            line-height: 1.7;
        }
        .article-main {
            padding: 50px 0 70px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 40px 44px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-body .featured-image {
            width: 100%;
            border-radius: var(--radius-sm);
            margin-bottom: 32px;
            object-fit: cover;
            aspect-ratio: 16/9;
            background: var(--bg-darker);
        }
        .article-body .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-soft);
        }
        .article-body .article-content h2,
        .article-body .article-content h3 {
            color: #fff;
            margin-top: 32px;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .article-body .article-content h2 {
            font-size: 1.6rem;
        }
        .article-body .article-content h3 {
            font-size: 1.3rem;
        }
        .article-body .article-content p {
            margin-bottom: 20px;
        }
        .article-body .article-content ul,
        .article-body .article-content ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        .article-body .article-content li {
            margin-bottom: 8px;
        }
        .article-body .article-content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body .article-content a:hover {
            color: #fff;
        }
        .article-body .article-content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(13, 110, 253, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-soft);
            font-style: italic;
        }
        .article-body .article-content img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-body .article-content code {
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 10px;
            border-radius: 6px;
            font-size: 0.9em;
            color: var(--accent-light);
        }
        .article-body .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
        }
        .article-body .article-tags .tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-soft);
            font-size: 0.85rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-body .article-tags .tag:hover {
            background: rgba(13, 110, 253, 0.15);
            border-color: var(--primary);
            color: #fff;
        }
        .article-body .article-nav {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
            flex-wrap: wrap;
        }
        .article-body .article-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            color: var(--text-soft);
            font-size: 0.92rem;
            transition: var(--transition);
        }
        .article-body .article-nav a:hover {
            background: rgba(13, 110, 253, 0.12);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 28px 24px;
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i {
            color: var(--accent-light);
        }
        .sidebar-card .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-card .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid transparent;
            transition: var(--transition);
            color: var(--text-soft);
            font-size: 0.92rem;
        }
        .sidebar-card .sidebar-list a:hover {
            background: rgba(13, 110, 253, 0.08);
            border-color: var(--border-light);
            color: #fff;
            transform: translateX(4px);
        }
        .sidebar-card .sidebar-list a .num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(13, 110, 253, 0.12);
            color: var(--primary-light);
            font-weight: 700;
            font-size: 0.8rem;
        }
        .sidebar-card .sidebar-list a .num.top {
            background: rgba(253, 126, 20, 0.2);
            color: var(--accent);
        }
        .sidebar-card .sidebar-cta {
            display: block;
            text-align: center;
            padding: 14px 20px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 4px 20px rgba(13, 110, 253, 0.3);
            transition: var(--transition);
            margin-top: 8px;
        }
        .sidebar-card .sidebar-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(13, 110, 253, 0.45);
            color: #fff;
        }
        .not-found {
            text-align: center;
            padding: 100px 24px;
        }
        .not-found i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found h2 {
            font-size: 1.8rem;
            color: #fff;
            margin-bottom: 12px;
        }
        .not-found p {
            color: var(--text-muted);
            font-size: 1.1rem;
            margin-bottom: 28px;
        }
        .not-found .btn-home {
            display: inline-block;
            padding: 14px 40px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(13, 110, 253, 0.3);
        }
        .not-found .btn-home:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(13, 110, 253, 0.5);
            color: #fff;
        }
        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border-color);
            padding: 56px 0 0;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
        }
        .footer-brand .site-logo {
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.8;
            max-width: 380px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 6px;
        }
        .footer-bottom {
            margin-top: 40px;
            padding: 20px 24px;
            text-align: center;
            border-top: 1px solid rgba(30, 40, 64, 0.4);
            color: var(--text-muted);
            font-size: 0.85rem;
            letter-spacing: 0.3px;
        }
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .nav-list {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(11, 14, 23, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-list a {
                width: 100%;
                text-align: center;
                padding: 12px 18px;
                font-size: 1rem;
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-list a.nav-cta {
                margin-top: 6px;
            }
            .nav-toggle {
                display: block;
            }
            .page-banner {
                padding: 40px 0 32px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
            .article-body {
                padding: 24px 20px;
            }
            .article-body .article-content {
                font-size: 0.98rem;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .article-body {
                padding: 18px 14px;
            }
            .article-body .article-nav {
                flex-direction: column;
                align-items: stretch;
            }
            .article-body .article-nav a {
                justify-content: center;
            }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #f5c518;
            --primary-dark: #d4a800;
            --primary-light: #ffe066;
            --secondary: #1a1a2e;
            --accent: #e94560;
            --bg-dark: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-card-hover: #242440;
            --bg-section: #14142a;
            --text-light: #f0f0f0;
            --text-muted: #a0a0b8;
            --text-dark: #e0e0e0;
            --border-color: #2a2a4a;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            outline: none;
            border: none;
        }
        ul {
            list-style: none;
            padding: 0;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            padding: 0 24px;
            transition: var(--transition);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary) !important;
            letter-spacing: 0.5px;
        }
        .site-logo i {
            font-size: 1.6rem;
            color: var(--primary);
        }
        .site-logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            color: var(--text-muted);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            color: var(--text-light);
            background: rgba(245, 197, 24, 0.08);
        }
        .nav-list a.active {
            color: var(--primary);
            background: rgba(245, 197, 24, 0.12);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-list a.nav-cta {
            background: var(--primary);
            color: var(--bg-dark);
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a.nav-cta:hover {
            background: var(--primary-dark);
            color: var(--bg-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(245, 197, 24, 0.3);
        }
        .nav-toggle {
            display: none;
            background: none;
            color: var(--text-light);
            font-size: 1.5rem;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-list {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 30px;
                gap: 8px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-list a {
                width: 100%;
                text-align: center;
                padding: 12px 18px;
                font-size: 1.05rem;
            }
            .nav-list a.active::after {
                bottom: 4px;
            }
            .nav-list a.nav-cta {
                justify-content: center;
                margin-top: 6px;
            }
            .header-inner {
                height: 60px;
            }
            .site-logo {
                font-size: 1.15rem;
            }
            .site-logo i {
                font-size: 1.3rem;
            }
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, rgba(15, 15, 26, 0.85), rgba(26, 26, 46, 0.75)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 80px 24px 60px;
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-dark), transparent);
        }
        .category-hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .category-hero-badge {
            display: inline-block;
            background: rgba(245, 197, 24, 0.15);
            color: var(--primary);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            border: 1px solid rgba(245, 197, 24, 0.2);
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            background: linear-gradient(135deg, #fff 40%, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }
        .category-hero .hero-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .category-hero .hero-actions .btn-primary-custom {
            background: var(--primary);
            color: var(--bg-dark);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            border: none;
        }
        .category-hero .hero-actions .btn-primary-custom:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245, 197, 24, 0.3);
        }
        .category-hero .hero-actions .btn-outline-custom {
            background: transparent;
            color: var(--text-light);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            border: 1.5px solid rgba(255, 255, 255, 0.2);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .category-hero .hero-actions .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(245, 197, 24, 0.06);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .category-hero {
                min-height: 320px;
                padding: 60px 16px 50px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .category-hero .hero-actions .btn-primary-custom,
            .category-hero .hero-actions .btn-outline-custom {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero .hero-actions {
                flex-direction: column;
                align-items: center;
            }
        }

        /* ===== Section通用 ===== */
        .section-pad {
            padding: 80px 0;
        }
        .section-pad-sm {
            padding: 50px 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            color: #fff;
        }
        .section-sub {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 640px;
            margin: 0 auto 40px;
            text-align: center;
        }
        .section-label {
            display: inline-block;
            background: rgba(245, 197, 24, 0.1);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
            border: 1px solid rgba(245, 197, 24, 0.15);
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 30px;
            }
        }

        /* ===== 分类介绍 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .intro-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }
        .intro-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: var(--transition);
        }
        .intro-image:hover img {
            transform: scale(1.03);
        }
        .intro-image .play-badge {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 72px;
            height: 72px;
            background: rgba(245, 197, 24, 0.92);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--bg-dark);
            box-shadow: 0 0 0 12px rgba(245, 197, 24, 0.15);
            transition: var(--transition);
            cursor: pointer;
        }
        .intro-image:hover .play-badge {
            transform: translate(-50%, -50%) scale(1.08);
            box-shadow: 0 0 0 20px rgba(245, 197, 24, 0.1);
        }
        .intro-text h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }
        .intro-text p {
            color: var(--text-muted);
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 24px;
        }
        .intro-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-dark);
            font-size: 0.95rem;
        }
        .intro-features li i {
            color: var(--primary);
            font-size: 1.1rem;
        }
        @media (max-width: 900px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .intro-image img {
                height: 260px;
            }
            .intro-text h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .intro-features {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 内容卡片网格 ===== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .content-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
        }
        .content-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(245, 197, 24, 0.2);
            background: var(--bg-card-hover);
        }
        .content-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }
        .content-card:hover .card-img {
            transform: scale(1.02);
        }
        .content-card .card-body {
            padding: 20px 22px 24px;
        }
        .content-card .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .content-card .card-tags span {
            background: rgba(245, 197, 24, 0.08);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            border: 1px solid rgba(245, 197, 24, 0.1);
        }
        .content-card .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .content-card .card-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 14px;
        }
        .content-card .card-meta i {
            margin-right: 4px;
            color: var(--primary);
        }
        .content-card .card-meta .badge-custom {
            background: rgba(233, 69, 96, 0.15);
            color: var(--accent);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.72rem;
            font-weight: 600;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .content-card .card-img {
                height: 180px;
            }
        }

        /* ===== 特色/优势板块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .feature-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 24px 30px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
            border-color: rgba(245, 197, 24, 0.15);
        }
        .feature-item .icon-wrap {
            width: 60px;
            height: 60px;
            background: rgba(245, 197, 24, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .feature-item:hover .icon-wrap {
            background: rgba(245, 197, 24, 0.15);
            transform: scale(1.05);
        }
        .feature-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .feature-item p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
            margin: 0;
        }
        @media (max-width: 992px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-item {
                padding: 28px 20px 24px;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 30px;
            border: 1px solid var(--border-color);
        }
        .stat-item {
            text-align: center;
            padding: 10px 0;
        }
        .stat-item .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                padding: 30px 20px;
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 420px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                padding: 24px 16px;
            }
        }

        /* ===== 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);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(245, 197, 24, 0.12);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-light);
            cursor: pointer;
            transition: var(--transition);
            background: none;
            width: 100%;
            text-align: left;
            border: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        @media (max-width: 600px) {
            .faq-question {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                font-size: 0.88rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(245, 197, 24, 0.06), rgba(233, 69, 96, 0.04)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            border-radius: var(--radius-lg);
            padding: 70px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(245, 197, 24, 0.08);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 15, 26, 0.7);
            backdrop-filter: blur(4px);
        }
        .cta-section>* {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            background: var(--primary);
            color: var(--bg-dark);
            padding: 16px 48px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            display: inline-flex;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
            border: none;
        }
        .cta-section .btn-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(245, 197, 24, 0.3);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .btn-cta {
                padding: 14px 32px;
                font-size: 1rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary);
            border-top: 1px solid var(--border-color);
            padding: 60px 24px 0;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .site-logo {
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-top: 8px;
            max-width: 360px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.92rem;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 24px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            letter-spacing: 0.3px;
        }
        @media (max-width: 768px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .site-footer {
                padding: 40px 16px 0;
            }
        }

        /* ===== Additional Utilities ===== */
        .text-glow {
            text-shadow: 0 0 40px rgba(245, 197, 24, 0.15);
        }
        .divider-custom {
            width: 60px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            margin: 0 auto 20px;
        }
        .bg-section-alt {
            background: var(--bg-section);
        }
        .mb-gap {
            margin-bottom: 60px;
        }
        @media (max-width: 768px) {
            .mb-gap {
                margin-bottom: 40px;
            }
        }

        /* ===== Back to top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: var(--bg-dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            opacity: 0;
            pointer-events: none;
            z-index: 999;
            border: none;
        }
        .back-top.show {
            opacity: 1;
            pointer-events: all;
        }
        .back-top:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(245, 197, 24, 0.25);
        }