/* roulang page: index */
/* ===== :root 设计变量 ===== */
    :root {
        --primary: #f59e0b;
        --primary-dark: #d97706;
        --primary-light: #fbbf24;
        --primary-bg: rgba(245, 158, 11, 0.12);
        --secondary: #1e3a5f;
        --secondary-light: #2d5a8e;
        --secondary-dark: #0f1d30;
        --accent: #ef4444;
        --bg: #f8f9fa;
        --bg-card: #ffffff;
        --bg-dark: #0f1d30;
        --bg-dark-alt: #1a2d4a;
        --text: #1a1a2e;
        --text-light: #6b7280;
        --text-white: #ffffff;
        --text-muted: #9ca3af;
        --border: #e5e7eb;
        --border-light: #f3f4f6;
        --radius: 16px;
        --radius-sm: 10px;
        --radius-lg: 24px;
        --radius-xl: 32px;
        --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
        --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.12);
        --transition: 0.30s cubic-bezier(0.4, 0, 0.2, 1);
        --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        --max-w: 1200px;
        --header-h: 72px;
        --spacing-section: 80px;
        --spacing-block: 48px;
    }

    /* ===== Reset / Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
        font-family: var(--font);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text);
        background: var(--bg);
    }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary); }
    img { max-width: 100%; height: auto; display: block; }
    button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
    button { cursor: pointer; background: none; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
    h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
    h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
    h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
    p { margin-bottom: 1rem; color: var(--text-light); }
    .container {
        width: 100%;
        max-width: var(--max-w);
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ===== 导航悬浮胶囊 ===== */
    .site-header {
        position: fixed;
        top: 18px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 1000;
        width: calc(100% - 48px);
        max-width: 1100px;
        background: rgba(255, 255, 255, 0.88);
        backdrop-filter: blur(18px) saturate(1.4);
        -webkit-backdrop-filter: blur(18px) saturate(1.4);
        border-radius: 60px;
        box-shadow: 0 4px 24px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
        padding: 0 8px;
        transition: var(--transition);
        border: 1px solid rgba(255,255,255,0.5);
    }
    .site-header.scrolled {
        background: rgba(255, 255, 255, 0.96);
        box-shadow: 0 8px 32px rgba(0,0,0,0.10);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 56px;
        padding: 0 12px;
    }
    .logo {
        font-size: 1.4rem;
        font-weight: 800;
        color: var(--secondary);
        letter-spacing: -0.3px;
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .logo i { color: var(--primary); font-size: 1.5rem; }
    .logo span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .nav-list {
        display: flex;
        align-items: center;
        gap: 4px;
    }
    .nav-list a {
        padding: 8px 18px;
        border-radius: 40px;
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--text-light);
        transition: var(--transition);
        position: relative;
    }
    .nav-list a:hover { color: var(--secondary); background: var(--primary-bg); }
    .nav-list a.active { color: var(--secondary); background: var(--primary-bg); font-weight: 600; }
    .nav-cta {
        background: linear-gradient(135deg, var(--primary), var(--accent)) !important;
        color: #fff !important;
        padding: 8px 22px !important;
        border-radius: 40px !important;
        font-weight: 600 !important;
        box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
    }
    .nav-cta:hover { box-shadow: 0 6px 20px rgba(245, 158, 11, 0.50); transform: translateY(-1px); }
    .nav-toggle { display: none; font-size: 1.5rem; color: var(--secondary); padding: 4px 8px; border-radius: 8px; background: var(--primary-bg); cursor: pointer; }
    @media (max-width: 768px) {
        .site-header { top: 12px; width: calc(100% - 24px); border-radius: 40px; }
        .nav-list { display: none; position: absolute; top: 64px; left: 12px; right: 12px; background: rgba(255,255,255,0.98); backdrop-filter: blur(18px); border-radius: 24px; flex-direction: column; padding: 12px; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
        .nav-list.open { display: flex; }
        .nav-list a { width: 100%; text-align: center; padding: 12px; }
        .nav-toggle { display: block; }
        .nav-cta { margin-top: 4px; }
    }

    /* ===== Hero ===== */
    .hero {
        min-height: 100vh;
        display: flex;
        align-items: center;
        position: relative;
        background: var(--bg-dark);
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        background-attachment: fixed;
        overflow: hidden;
    }
    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(15,29,48,0.82) 0%, rgba(15,29,48,0.40) 60%, rgba(245,158,11,0.15) 100%);
        z-index: 1;
    }
    .hero .container { position: relative; z-index: 2; padding-top: 100px; padding-bottom: 60px; }
    .hero-content { max-width: 700px; }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(245, 158, 11, 0.18);
        backdrop-filter: blur(6px);
        border: 1px solid rgba(245, 158, 11, 0.30);
        padding: 6px 18px;
        border-radius: 40px;
        font-size: 0.85rem;
        color: var(--primary-light);
        margin-bottom: 24px;
        font-weight: 500;
    }
    .hero-badge i { font-size: 0.75rem; }
    .hero h1 { color: var(--text-white); font-weight: 800; line-height: 1.15; margin-bottom: 20px; }
    .hero h1 span { background: linear-gradient(135deg, var(--primary-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .hero p { font-size: 1.15rem; color: rgba(255,255,255,0.80); max-width: 580px; margin-bottom: 32px; line-height: 1.8; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        color: #fff;
        padding: 14px 32px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1rem;
        box-shadow: 0 6px 24px rgba(245, 158, 11, 0.35);
        transition: var(--transition);
        border: none;
    }
    .btn-primary:hover { box-shadow: 0 10px 36px rgba(245, 158, 11, 0.50); transform: translateY(-2px); color: #fff; }
    .btn-outline {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: transparent;
        color: var(--text-white);
        padding: 14px 32px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1rem;
        border: 2px solid rgba(255,255,255,0.30);
        transition: var(--transition);
    }
    .btn-outline:hover { border-color: var(--primary); color: var(--primary-light); background: rgba(245,158,11,0.10); }
    .hero-stats {
        display: flex;
        flex-wrap: wrap;
        gap: 40px;
        margin-top: 48px;
        padding-top: 32px;
        border-top: 1px solid rgba(255,255,255,0.10);
    }
    .hero-stat h4 { color: var(--text-white); font-size: 1.8rem; font-weight: 800; }
    .hero-stat h4 span { color: var(--primary-light); }
    .hero-stat p { font-size: 0.85rem; color: rgba(255,255,255,0.60); margin: 0; }

    /* ===== 通用板块 ===== */
    .section { padding: var(--spacing-section) 0; }
    .section-alt { background: var(--bg-card); }
    .section-dark { background: var(--bg-dark); }
    .section-dark-alt { background: var(--bg-dark-alt); }
    .section-title { text-align: center; margin-bottom: 48px; }
    .section-title h2 { margin-bottom: 12px; }
    .section-title p { max-width: 560px; margin: 0 auto; color: var(--text-light); }
    .section-title.light h2 { color: var(--text-white); }
    .section-title.light p { color: rgba(255,255,255,0.65); }
    .title-accent { display: inline-block; background: var(--primary-bg); color: var(--primary-dark); padding: 4px 16px; border-radius: 40px; font-size: 0.85rem; font-weight: 600; margin-bottom: 12px; }

    /* ===== 核心说明 ===== */
    .about-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 48px;
        align-items: center;
    }
    .about-image { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
    .about-image img { width: 100%; height: 420px; object-fit: cover; transition: var(--transition); }
    .about-image:hover img { transform: scale(1.03); }
    .about-text h3 { font-size: 1.6rem; margin-bottom: 16px; }
    .about-text p { margin-bottom: 16px; }
    .about-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
    .tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: var(--primary-bg);
        color: var(--primary-dark);
        padding: 6px 16px;
        border-radius: 40px;
        font-size: 0.85rem;
        font-weight: 500;
    }
    .tag i { font-size: 0.75rem; }

    /* ===== 分类入口 ===== */
    .category-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 24px;
    }
    .category-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);
        cursor: pointer;
        position: relative;
        overflow: hidden;
    }
    .category-card::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        transform: scaleX(0);
        transition: var(--transition);
    }
    .category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
    .category-card:hover::after { transform: scaleX(1); }
    .category-icon {
        width: 64px;
        height: 64px;
        background: var(--primary-bg);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 16px;
        font-size: 1.6rem;
        color: var(--primary-dark);
        transition: var(--transition);
    }
    .category-card:hover .category-icon { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; }
    .category-card h4 { font-size: 1.15rem; margin-bottom: 8px; }
    .category-card p { font-size: 0.9rem; margin: 0; }

    /* ===== 数据统计 ===== */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .stat-card {
        background: rgba(255,255,255,0.06);
        backdrop-filter: blur(8px);
        border: 1px solid rgba(255,255,255,0.10);
        border-radius: var(--radius);
        padding: 32px 20px;
        text-align: center;
        transition: var(--transition);
    }
    .stat-card:hover { background: rgba(255,255,255,0.10); transform: translateY(-4px); }
    .stat-card i { font-size: 2rem; color: var(--primary-light); margin-bottom: 12px; }
    .stat-card h3 { color: var(--text-white); font-size: 2.2rem; font-weight: 800; }
    .stat-card h3 span { color: var(--primary-light); }
    .stat-card p { color: rgba(255,255,255,0.60); font-size: 0.9rem; margin: 4px 0 0; }

    /* ===== 资讯列表 ===== */
    .news-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 24px;
    }
    .news-card {
        background: var(--bg-card);
        border-radius: var(--radius);
        overflow: hidden;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }
    .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .news-card-img {
        height: 200px;
        overflow: hidden;
        position: relative;
    }
    .news-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
    .news-card:hover .news-card-img img { transform: scale(1.06); }
    .news-card-cat {
        position: absolute;
        top: 12px;
        left: 12px;
        background: var(--primary);
        color: #fff;
        padding: 4px 14px;
        border-radius: 40px;
        font-size: 0.75rem;
        font-weight: 600;
    }
    .news-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
    .news-card-body h4 { font-size: 1.1rem; margin-bottom: 8px; line-height: 1.4; }
    .news-card-body h4 a { color: var(--text); }
    .news-card-body h4 a:hover { color: var(--primary); }
    .news-card-body p { font-size: 0.9rem; color: var(--text-light); flex: 1; margin-bottom: 12px; }
    .news-card-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-size: 0.8rem;
        color: var(--text-muted);
        border-top: 1px solid var(--border-light);
        padding-top: 12px;
    }
    .news-card-meta i { margin-right: 4px; }
    .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(--text-muted); margin-bottom: 16px; display: block; }
    .news-empty p { margin: 0; }

    /* ===== 流程/特色 ===== */
    .features-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .feature-card {
        background: var(--bg-card);
        border-radius: var(--radius);
        padding: 32px 24px;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }
    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 4px;
        height: 100%;
        background: linear-gradient(180deg, var(--primary), var(--accent));
        opacity: 0;
        transition: var(--transition);
    }
    .feature-card:hover::before { opacity: 1; }
    .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .feature-num {
        font-size: 2.8rem;
        font-weight: 800;
        color: var(--primary-bg);
        line-height: 1;
        margin-bottom: 12px;
        transition: var(--transition);
    }
    .feature-card:hover .feature-num { color: var(--primary-light); }
    .feature-card h4 { font-size: 1.15rem; margin-bottom: 8px; }
    .feature-card p { font-size: 0.9rem; margin: 0; }

    /* ===== 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);
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item:hover { border-color: var(--primary-light); }
    .faq-q {
        padding: 18px 24px;
        font-weight: 600;
        font-size: 1rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        cursor: pointer;
        color: var(--text);
        transition: var(--transition);
    }
    .faq-q i { color: var(--primary); transition: var(--transition); font-size: 0.85rem; }
    .faq-q.active i { transform: rotate(180deg); }
    .faq-a {
        padding: 0 24px 18px;
        font-size: 0.95rem;
        color: var(--text-light);
        line-height: 1.7;
        display: none;
    }
    .faq-a.show { display: block; }

    /* ===== CTA ===== */
    .cta-section {
        background: var(--bg-dark);
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        position: relative;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(15,29,48,0.88) 0%, rgba(15,29,48,0.60) 100%);
    }
    .cta-inner { position: relative; z-index: 2; text-align: center; padding: 60px 20px; }
    .cta-inner h2 { color: var(--text-white); margin-bottom: 16px; }
    .cta-inner p { color: rgba(255,255,255,0.70); max-width: 520px; margin: 0 auto 32px; }
    .cta-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--bg-dark);
        border-top: 1px solid rgba(255,255,255,0.06);
        padding: 48px 0 24px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 32px;
        padding-bottom: 32px;
        border-bottom: 1px solid rgba(255,255,255,0.06);
        margin-bottom: 24px;
    }
    .footer-brand .logo { color: var(--text-white); margin-bottom: 12px; }
    .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.55); max-width: 320px; margin-bottom: 16px; }
    .footer-social { display: flex; gap: 12px; }
    .footer-social a {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255,255,255,0.06);
        display: flex;
        align-items: center;
        justify-content: center;
        color: rgba(255,255,255,0.60);
        font-size: 1rem;
        transition: var(--transition);
        border: 1px solid rgba(255,255,255,0.06);
    }
    .footer-social a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
    .footer-col h5 { color: var(--text-white); font-size: 0.95rem; margin-bottom: 16px; font-weight: 600; }
    .footer-col a {
        display: block;
        color: rgba(255,255,255,0.55);
        font-size: 0.9rem;
        padding: 4px 0;
        transition: var(--transition);
    }
    .footer-col a:hover { color: var(--primary-light); padding-left: 4px; }
    .footer-bottom { text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.35); }
    .footer-bottom a { color: rgba(255,255,255,0.45); }
    .footer-bottom a:hover { color: var(--primary-light); }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .stats-grid { grid-template-columns: repeat(2, 1fr); }
        .features-grid { grid-template-columns: repeat(2, 1fr); }
        .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
        :root { --spacing-section: 48px; }
        .about-grid { grid-template-columns: 1fr; gap: 32px; }
        .about-image img { height: 280px; }
        .hero-stats { gap: 24px; }
        .hero-stat h4 { font-size: 1.4rem; }
        .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .stat-card { padding: 20px 12px; }
        .stat-card h3 { font-size: 1.6rem; }
        .features-grid { grid-template-columns: 1fr; }
        .news-grid { grid-template-columns: 1fr; }
        .category-grid { grid-template-columns: 1fr 1fr; }
        .footer-grid { grid-template-columns: 1fr; gap: 24px; }
        .footer-brand p { max-width: 100%; }
        .cta-inner { padding: 40px 16px; }
    }
    @media (max-width: 520px) {
        .category-grid { grid-template-columns: 1fr; }
        .stats-grid { grid-template-columns: 1fr 1fr; }
        .hero-actions { flex-direction: column; }
        .hero-actions .btn-primary, .hero-actions .btn-outline { width: 100%; justify-content: center; }
        .section-title p { font-size: 0.9rem; }
        .news-card-img { height: 160px; }
    }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e53935;
            --primary-dark: #c62828;
            --primary-light: #ff6f60;
            --secondary: #1e88e5;
            --secondary-dark: #1565c0;
            --accent: #ffb300;
            --bg-body: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-elevated: #222240;
            --bg-footer: #0a0a14;
            --text-primary: #f5f5fa;
            --text-secondary: #b0b0c8;
            --text-weak: #7a7a9a;
            --border-color: #2a2a48;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 16px 48px rgba(229, 57, 53, 0.2);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --font-family: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: transparent;
            color: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        p {
            margin-bottom: 1em;
        }

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

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 48px);
            max-width: var(--container-max);
            background: rgba(15, 15, 26, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(42, 42, 72, 0.6);
            border-radius: 60px;
            padding: 0 8px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
            transition: var(--transition);
        }
        .site-header:hover {
            border-color: rgba(229, 57, 53, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            padding: 0 12px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            transition: var(--transition);
        }
        .logo i {
            color: var(--primary);
            font-size: 26px;
        }
        .logo span {
            color: var(--primary);
        }
        .logo:hover {
            color: var(--primary-light);
            transform: scale(1.02);
        }

        .nav-toggle {
            display: none;
            font-size: 26px;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-toggle:hover {
            background: rgba(229, 57, 53, 0.2);
            border-color: var(--primary);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-list a {
            padding: 10px 20px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            position: relative;
        }
        .nav-list a i {
            font-size: 16px;
        }
        .nav-list a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-list a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 20px rgba(229, 57, 53, 0.35);
        }
        .nav-list a.active:hover {
            background: var(--primary-dark);
        }
        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(229, 57, 53, 0.3);
        }
        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(229, 57, 53, 0.45);
        }

        /* ===== 文章页头部 ===== */
        .article-header {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, #0f0f1a 0%, #1a0a0f 50%, #0f0f1a 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .article-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }
        .article-header .container {
            position: relative;
            z-index: 2;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a {
            color: var(--text-weak);
        }
        .article-breadcrumb a:hover {
            color: var(--primary-light);
        }
        .article-breadcrumb .sep {
            color: var(--text-weak);
            opacity: 0.4;
        }
        .article-breadcrumb .current {
            color: var(--text-secondary);
        }
        .article-category-badge {
            display: inline-block;
            background: rgba(229, 57, 53, 0.15);
            color: var(--primary-light);
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            border: 1px solid rgba(229, 57, 53, 0.2);
        }
        .article-header h1 {
            font-size: clamp(28px, 4vw, 48px);
            font-weight: 900;
            color: var(--text-primary);
            max-width: 900px;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 32px;
            color: var(--text-weak);
            font-size: 15px;
            align-items: center;
        }
        .article-meta i {
            margin-right: 6px;
            color: var(--primary);
        }
        .article-meta span {
            display: flex;
            align-items: center;
        }

        /* ===== 文章正文 ===== */
        .article-main {
            padding: 60px 0 80px;
            background: var(--bg-body);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
        }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 48px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }
        .article-content .featured-image {
            border-radius: var(--radius-sm);
            margin-bottom: 32px;
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .article-body {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
        }
        .article-body h2 {
            font-size: 26px;
            color: var(--text-primary);
            margin-top: 40px;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(229, 57, 53, 0.15);
        }
        .article-body h3 {
            font-size: 21px;
            color: var(--text-primary);
            margin-top: 32px;
            margin-bottom: 12px;
        }
        .article-body p {
            margin-bottom: 1.2em;
        }
        .article-body ul,
        .article-body ol {
            margin: 16px 0;
            padding-left: 24px;
        }
        .article-body ul li {
            list-style: disc;
            margin-bottom: 8px;
        }
        .article-body ol li {
            list-style: decimal;
            margin-bottom: 8px;
        }
        .article-body a {
            color: var(--primary-light);
            text-decoration: underline;
        }
        .article-body a:hover {
            color: var(--primary);
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(229, 57, 53, 0.06);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-body code {
            background: rgba(255, 255, 255, 0.05);
            padding: 2px 10px;
            border-radius: 6px;
            font-size: 0.9em;
            color: var(--accent);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        .article-tags a {
            display: inline-block;
            background: rgba(255, 255, 255, 0.04);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 13px;
            color: var(--text-weak);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-tags a:hover {
            background: rgba(229, 57, 53, 0.12);
            border-color: var(--primary);
            color: var(--primary-light);
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        .article-share span {
            font-size: 14px;
            color: var(--text-weak);
            font-weight: 600;
        }
        .article-share a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .article-share a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .article-nav {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border-color);
        }
        .article-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: var(--transition);
            max-width: 45%;
        }
        .article-nav a:hover {
            color: var(--primary-light);
        }
        .article-nav .next {
            text-align: right;
            justify-content: flex-end;
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }
        .sidebar-card h4 {
            font-size: 18px;
            color: var(--text-primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h4 i {
            color: var(--primary);
        }
        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(42, 42, 72, 0.4);
            transition: var(--transition);
        }
        .sidebar-list a:last-child {
            border-bottom: none;
        }
        .sidebar-list a:hover {
            padding-left: 8px;
        }
        .sidebar-list a .thumb {
            width: 60px;
            height: 60px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-elevated);
        }
        .sidebar-list a .info {
            flex: 1;
            min-width: 0;
        }
        .sidebar-list a .info .title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }
        .sidebar-list a .info .date {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 4px;
        }
        .sidebar-categories {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-categories a {
            padding: 6px 16px;
            border-radius: 40px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .sidebar-categories a:hover {
            background: rgba(229, 57, 53, 0.12);
            border-color: var(--primary);
            color: var(--primary-light);
        }
        .sidebar-cta {
            background: linear-gradient(135deg, rgba(229, 57, 53, 0.12), rgba(30, 136, 229, 0.08));
            border: 1px solid rgba(229, 57, 53, 0.2);
            text-align: center;
        }
        .sidebar-cta h4 {
            justify-content: center;
        }
        .sidebar-cta p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .sidebar-cta .btn {
            display: inline-block;
            padding: 12px 32px;
            border-radius: 40px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            transition: var(--transition);
        }
        .sidebar-cta .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(229, 57, 53, 0.3);
        }

        /* ===== 404 状态 ===== */
        .not-found-wrap {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-wrap .icon {
            font-size: 80px;
            color: var(--text-weak);
            margin-bottom: 24px;
        }
        .not-found-wrap h2 {
            font-size: 32px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .not-found-wrap p {
            color: var(--text-secondary);
            max-width: 480px;
            margin: 0 auto 28px;
        }
        .not-found-wrap .btn-back {
            display: inline-block;
            padding: 14px 40px;
            border-radius: 40px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-wrap .btn-back:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(229, 57, 53, 0.3);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-color);
            padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
            font-size: 24px;
        }
        .footer-brand p {
            color: var(--text-weak);
            font-size: 15px;
            max-width: 360px;
            line-height: 1.7;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-weak);
            font-size: 18px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-col h5 {
            font-size: 16px;
            color: var(--text-primary);
            margin-bottom: 20px;
            font-weight: 700;
        }
        .footer-col a {
            display: block;
            color: var(--text-weak);
            font-size: 14px;
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 6px;
        }
        .footer-col a i {
            width: 20px;
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(42, 42, 72, 0.4);
            padding-top: 24px;
            text-align: center;
            font-size: 14px;
            color: var(--text-weak);
        }
        .footer-bottom a {
            color: var(--text-weak);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                top: 12px;
                width: calc(100% - 24px);
                border-radius: 40px;
                padding: 0 4px;
            }
            .header-inner {
                height: 56px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 8px;
                right: 8px;
                background: rgba(15, 15, 26, 0.96);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                border-radius: 20px;
                border: 1px solid var(--border-color);
                flex-direction: column;
                padding: 12px;
                gap: 4px;
                box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                width: 100%;
                justify-content: center;
                padding: 14px 16px;
                font-size: 16px;
            }
            .article-header {
                padding: 120px 0 40px;
            }
            .article-header h1 {
                font-size: 26px;
            }
            .article-content {
                padding: 24px;
            }
            .article-body {
                font-size: 16px;
            }
            .article-nav {
                flex-direction: column;
            }
            .article-nav a {
                max-width: 100%;
            }
            .article-nav .next {
                text-align: left;
                justify-content: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .site-header {
                top: 8px;
                border-radius: 28px;
            }
            .header-inner {
                height: 50px;
                padding: 0 8px;
            }
            .logo {
                font-size: 18px;
            }
            .logo i {
                font-size: 20px;
            }
            .article-header {
                padding: 100px 0 32px;
            }
            .article-header h1 {
                font-size: 22px;
            }
            .article-meta {
                font-size: 13px;
                gap: 12px;
            }
            .article-content {
                padding: 16px;
                border-radius: var(--radius-sm);
            }
            .article-body {
                font-size: 15px;
            }
            .article-body h2 {
                font-size: 20px;
            }
            .article-body h3 {
                font-size: 18px;
            }
            .sidebar-card {
                padding: 20px;
            }
            .not-found-wrap .icon {
                font-size: 56px;
            }
            .not-found-wrap h2 {
                font-size: 24px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e81a2d;
            --primary-dark: #c4121f;
            --primary-light: #ff4d5a;
            --secondary: #1a1a2e;
            --secondary-light: #2d2d44;
            --accent: #f5c518;
            --accent-dark: #d4a614;
            --bg-body: #0d0d1a;
            --bg-card: #1a1a2e;
            --bg-card-hover: #22223a;
            --bg-section: #12121f;
            --bg-section-alt: #1a1a2e;
            --text-primary: #f0f0f0;
            --text-secondary: #b0b0c0;
            --text-muted: #6e6e8a;
            --border-color: #2a2a44;
            --border-light: #3a3a5a;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --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 56px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(232, 26, 45, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-header p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }
        .section-subtitle {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 8px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(13, 13, 26, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition), box-shadow var(--transition);
            height: var(--header-height);
        }
        .site-header.scrolled {
            background: rgba(13, 13, 26, 0.96);
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }
        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .logo span {
            color: var(--primary-light);
        }
        .logo:hover {
            color: #fff;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .nav-list a i {
            font-size: 1rem;
        }
        .nav-list a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-list a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 20px rgba(232, 26, 45, 0.35);
        }
        .nav-list a.active:hover {
            background: var(--primary-dark);
        }
        .nav-list a.nav-cta {
            background: var(--accent);
            color: #1a1a2e;
            font-weight: 700;
            padding: 8px 24px;
        }
        .nav-list a.nav-cta:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: #fff;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ===== 页面横幅 ===== */
        .page-banner {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--secondary) 0%, #0d0d1a 100%);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(13, 13, 26, 0.88) 0%, rgba(26, 26, 46, 0.7) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -1px;
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .page-banner .breadcrumb a {
            color: var(--text-secondary);
        }
        .page-banner .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .page-banner .breadcrumb span {
            color: var(--text-primary);
        }
        .page-banner .breadcrumb i {
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        /* ===== 分类介绍 ===== */
        .intro-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-block .intro-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
        }
        .intro-block .intro-text p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 16px;
            line-height: 1.8;
        }
        .intro-block .intro-text .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .intro-block .intro-text .tag-list span {
            padding: 6px 18px;
            border-radius: 100px;
            background: rgba(232, 26, 45, 0.12);
            color: var(--primary-light);
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(232, 26, 45, 0.2);
        }
        .intro-block .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .intro-block .intro-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .intro-block .intro-image:hover img {
            transform: scale(1.03);
        }
        .intro-block .intro-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(to top, var(--bg-body), transparent);
            pointer-events: none;
        }

        /* ===== 赛事分类卡片网格 ===== */
        .race-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .race-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: default;
        }
        .race-card:hover {
            transform: translateY(-6px);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
            background: var(--bg-card-hover);
        }
        .race-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .race-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .race-card:hover .card-img img {
            transform: scale(1.05);
        }
        .race-card .card-img .badge {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 4px 16px;
            border-radius: 100px;
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(232, 26, 45, 0.3);
        }
        .race-card .card-img .badge.hot {
            background: var(--accent);
            color: #1a1a2e;
        }
        .race-card .card-body {
            padding: 24px;
        }
        .race-card .card-body h4 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .race-card .card-body h4 i {
            color: var(--primary-light);
            font-size: 1.1rem;
        }
        .race-card .card-body p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.65;
            margin-bottom: 16px;
        }
        .race-card .card-body .meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }
        .race-card .card-body .meta span i {
            margin-right: 4px;
        }

        /* ===== 热门赛事推荐 ===== */
        .hot-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .hot-item {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            align-items: center;
        }
        .hot-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-glow);
            transform: translateX(4px);
        }
        .hot-item .hot-rank {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-muted);
            min-width: 48px;
            text-align: center;
            line-height: 1;
        }
        .hot-item:nth-child(1) .hot-rank,
        .hot-item:nth-child(2) .hot-rank,
        .hot-item:nth-child(3) .hot-rank {
            color: var(--accent);
        }
        .hot-item .hot-info h5 {
            font-size: 1.05rem;
            margin-bottom: 4px;
        }
        .hot-item .hot-info p {
            font-size: 0.88rem;
            color: var(--text-secondary);
        }
        .hot-item .hot-info .tag-sm {
            display: inline-block;
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: 100px;
            background: rgba(245, 197, 24, 0.15);
            color: var(--accent);
            margin-top: 6px;
        }

        /* ===== 赛事日历 ===== */
        .timeline {
            position: relative;
            padding-left: 48px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            padding-left: 32px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--bg-body);
            box-shadow: 0 0 0 2px var(--primary);
        }
        .timeline-item .tl-date {
            font-size: 0.82rem;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 4px;
        }
        .timeline-item .tl-title {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .timeline-item .tl-desc {
            font-size: 0.92rem;
            color: var(--text-secondary);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item summary {
            padding: 20px 28px;
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            list-style: none;
            color: var(--text-primary);
            transition: color var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 1.2rem;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary-light);
        }
        .faq-item[open] summary {
            color: var(--primary-light);
        }
        .faq-item .answer {
            padding: 0 28px 24px;
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--secondary), #0d0d1a);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(232, 26, 45, 0.08), transparent 70%);
            pointer-events: none;
        }
        .cta-block h3 {
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .cta-block p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-block .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 24px rgba(232, 26, 45, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(232, 26, 45, 0.4);
            color: #fff;
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border: 1px solid var(--border-light);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 22px;
            font-size: 0.88rem;
        }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--secondary);
            border-top: 1px solid var(--border-color);
            padding: 64px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
        }
        .footer-brand .logo {
            font-size: 1.4rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            font-size: 1.1rem;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: #fff;
        }
        .footer-col a {
            display: block;
            padding: 6px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
        }
        .footer-col a i {
            margin-right: 8px;
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-secondary);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .race-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .intro-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-block .intro-image img {
                height: 300px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner {
                padding: 120px 0 56px;
                min-height: 280px;
            }

            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(13, 13, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 8px;
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s ease;
                border-bottom: 1px solid var(--border-color);
                pointer-events: none;
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                width: 100%;
                justify-content: center;
                padding: 12px 18px;
                font-size: 1.05rem;
            }
            .nav-toggle {
                display: block;
            }

            .race-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .hot-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .cta-block {
                padding: 40px 24px;
            }
            .cta-block h3 {
                font-size: 1.5rem;
            }
            .intro-block .intro-image img {
                height: 220px;
            }
            .timeline {
                padding-left: 32px;
            }
            .timeline-item {
                padding-left: 24px;
            }
            .timeline-item::before {
                left: -24px;
                width: 12px;
                height: 12px;
            }
            .faq-item summary {
                padding: 16px 20px;
                font-size: 0.98rem;
            }
            .faq-item .answer {
                padding: 0 20px 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner {
                padding: 100px 0 40px;
                min-height: 220px;
            }
            .logo {
                font-size: 1.3rem;
            }
            .logo i {
                font-size: 1.2rem;
            }
            .race-card .card-img {
                height: 160px;
            }
            .race-card .card-body {
                padding: 18px;
            }
            .hot-item {
                padding: 16px;
                gap: 14px;
                flex-wrap: wrap;
            }
            .hot-item .hot-rank {
                font-size: 1.6rem;
                min-width: 36px;
            }
            .cta-block {
                padding: 32px 18px;
                border-radius: var(--radius-md);
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
            .btn {
                padding: 12px 28px;
                font-size: 0.92rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 1.7rem;
            }
            .intro-block .intro-text h3 {
                font-size: 1.4rem;
            }
            .footer-grid {
                gap: 24px;
            }
            .footer-bottom {
                font-size: 0.8rem;
                padding: 18px 0;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            justify-content: center;
            align-items: center;
        }