/* roulang page: index */
/* ===== 设计变量 ===== */
    :root {
        --primary: #0f1724;
        --primary-light: #1a2744;
        --accent: #f59e0b;
        --accent-hover: #d97706;
        --accent-light: #fef3c7;
        --red: #ef4444;
        --success: #10b981;
        --bg: #ffffff;
        --bg-alt: #f8fafc;
        --bg-dark: #0f1724;
        --text: #1e293b;
        --text-light: #64748b;
        --text-white: #f1f5f9;
        --border: #e2e8f0;
        --radius: 12px;
        --radius-sm: 8px;
        --radius-lg: 20px;
        --shadow: 0 4px 24px rgba(0,0,0,0.06);
        --shadow-lg: 0 12px 48px rgba(0,0,0,0.10);
        --shadow-accent: 0 4px 20px rgba(245,158,11,0.35);
        --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
        --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        --container: 1200px;
        --header-h: 72px;
    }

    /* ===== Reset / Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
        font-family: var(--font);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text);
        background: var(--bg);
        -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
    a:hover { color: var(--accent-hover); }
    a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
    button { cursor: pointer; font-family: inherit; border: none; background: none; }
    input, textarea { font-family: inherit; font-size: 1rem; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--text); font-weight: 700; }
    h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
    h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
    h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }
    h4 { font-size: 1.1rem; }

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

    /* ===== Header / Nav ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(15, 23, 36, 0.96);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(255,255,255,0.06);
        height: var(--header-h);
        display: flex;
        align-items: center;
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
        gap: 20px;
    }
    .logo {
        font-size: 1.35rem;
        font-weight: 800;
        color: #fff;
        letter-spacing: -0.02em;
        white-space: nowrap;
        display: flex;
        align-items: center;
        gap: 8px;
        flex-shrink: 0;
    }
    .logo i { color: var(--accent); font-size: 1.4rem; }
    .logo span { background: linear-gradient(135deg, #fff 60%, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .logo:hover { opacity: 0.9; }

    .nav-search {
        flex: 1;
        max-width: 420px;
        position: relative;
    }
    .nav-search input {
        width: 100%;
        padding: 10px 18px 10px 44px;
        border-radius: 40px;
        border: 1px solid rgba(255,255,255,0.12);
        background: rgba(255,255,255,0.08);
        color: #fff;
        font-size: 0.9rem;
        transition: var(--transition);
        outline: none;
    }
    .nav-search input::placeholder { color: rgba(255,255,255,0.45); }
    .nav-search input:focus { border-color: var(--accent); background: rgba(255,255,255,0.14); box-shadow: 0 0 0 3px rgba(245,158,11,0.15); }
    .nav-search .search-icon {
        position: absolute;
        left: 16px;
        top: 50%;
        transform: translateY(-50%);
        color: rgba(255,255,255,0.4);
        font-size: 0.95rem;
        pointer-events: none;
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .nav-links a {
        color: rgba(255,255,255,0.75);
        padding: 8px 16px;
        border-radius: 40px;
        font-size: 0.9rem;
        font-weight: 500;
        transition: var(--transition);
        white-space: nowrap;
    }
    .nav-links a:hover { color: #fff; background: rgba(255,255,255,0.08); }
    .nav-links a.active { color: #fff; background: var(--accent); }
    .nav-links a.active:hover { background: var(--accent-hover); }

    .nav-toggle { display: none; color: #fff; font-size: 1.4rem; padding: 8px; }
    @media (max-width: 900px) {
        .nav-search { max-width: 200px; }
        .nav-links a { padding: 6px 12px; font-size: 0.82rem; }
    }
    @media (max-width: 768px) {
        .header-inner { gap: 10px; }
        .nav-search { order: 3; max-width: 100%; margin-top: 6px; }
        .nav-search input { padding: 8px 14px 8px 38px; font-size: 0.82rem; }
        .nav-search .search-icon { left: 12px; font-size: 0.8rem; }
        .nav-links { display: none; }
        .nav-toggle { display: block; }
        .nav-links.open { display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--primary); padding: 16px 24px; gap: 4px; border-bottom: 1px solid rgba(255,255,255,0.06); }
        .nav-links.open a { width: 100%; }
        .header-inner { flex-wrap: wrap; padding: 0 16px; }
        .logo { font-size: 1.1rem; }
    }

    /* ===== Hero ===== */
    .hero {
        position: relative;
        min-height: 620px;
        display: flex;
        align-items: center;
        background: var(--bg-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        overflow: hidden;
    }
    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(15,23,36,0.85) 30%, rgba(15,23,36,0.50) 70%, rgba(245,158,11,0.20) 100%);
        z-index: 1;
    }
    .hero-content {
        position: relative;
        z-index: 2;
        max-width: 720px;
        padding: 80px 24px;
    }
    .hero-content h1 {
        color: #fff;
        margin-bottom: 20px;
        font-weight: 800;
        letter-spacing: -0.02em;
    }
    .hero-content h1 i { color: var(--accent); }
    .hero-content p {
        font-size: 1.15rem;
        color: rgba(255,255,255,0.80);
        margin-bottom: 36px;
        max-width: 580px;
        line-height: 1.8;
    }
    .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
    .hero-actions .btn { padding: 14px 32px; border-radius: 40px; font-weight: 600; font-size: 1rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 10px; }
    .hero-actions .btn-primary { background: var(--accent); color: #0f1724; box-shadow: var(--shadow-accent); }
    .hero-actions .btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(245,158,11,0.40); }
    .hero-actions .btn-outline { border: 2px solid rgba(255,255,255,0.25); color: #fff; }
    .hero-actions .btn-outline:hover { border-color: var(--accent); background: rgba(245,158,11,0.10); transform: translateY(-2px); }
    @media (max-width: 768px) {
        .hero { min-height: 460px; }
        .hero-content { padding: 60px 16px; }
        .hero-content p { font-size: 1rem; }
        .hero-actions .btn { padding: 12px 24px; font-size: 0.9rem; }
    }

    /* ===== Buttons ===== */
    .btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 40px; font-weight: 600; font-size: 0.95rem; transition: var(--transition); border: none; }
    .btn-primary { background: var(--accent); color: #0f1724; }
    .btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-accent); }
    .btn-outline-dark { border: 2px solid var(--border); color: var(--text); background: transparent; }
    .btn-outline-dark:hover { border-color: var(--accent); color: var(--accent); }
    .btn-sm { padding: 8px 18px; font-size: 0.85rem; border-radius: 30px; }

    /* ===== Section Shared ===== */
    .section { padding: 80px 0; }
    .section-alt { background: var(--bg-alt); }
    .section-dark { background: var(--bg-dark); color: var(--text-white); }
    .section-title { margin-bottom: 16px; font-weight: 800; letter-spacing: -0.01em; }
    .section-subtitle { color: var(--text-light); font-size: 1.05rem; max-width: 600px; margin-bottom: 48px; line-height: 1.7; }
    .section-dark .section-subtitle { color: rgba(255,255,255,0.60); }
    .section-header { text-align: center; margin-bottom: 48px; }
    .section-header .section-title { margin-bottom: 12px; }
    .section-header .section-subtitle { margin: 0 auto; }

    /* ===== Features / Cards Grid ===== */
    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
    .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
    @media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
    @media (max-width: 768px) { .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; gap: 20px; } }

    .feature-card {
        background: #fff;
        border-radius: var(--radius);
        padding: 36px 28px;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        transition: var(--transition);
    }
    .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .feature-card .icon { width: 56px; height: 56px; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 20px; }
    .feature-card .icon-gold { background: var(--accent-light); color: var(--accent); }
    .feature-card .icon-red { background: #fee2e2; color: var(--red); }
    .feature-card .icon-blue { background: #dbeafe; color: #2563eb; }
    .feature-card .icon-green { background: #d1fae5; color: var(--success); }
    .feature-card h3 { margin-bottom: 10px; }
    .feature-card p { color: var(--text-light); font-size: 0.95rem; line-height: 1.7; }

    .stat-card {
        background: rgba(255,255,255,0.06);
        border-radius: var(--radius);
        padding: 32px 24px;
        text-align: center;
        border: 1px solid rgba(255,255,255,0.08);
        transition: var(--transition);
    }
    .stat-card:hover { background: rgba(255,255,255,0.10); transform: translateY(-2px); }
    .stat-card .num { font-size: 2.6rem; font-weight: 800; color: var(--accent); line-height: 1.2; }
    .stat-card .label { color: rgba(255,255,255,0.65); font-size: 0.95rem; margin-top: 6px; }

    /* ===== Category Cards ===== */
    .category-card {
        position: relative;
        border-radius: var(--radius);
        overflow: hidden;
        background: #fff;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        transition: var(--transition);
    }
    .category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .category-card .thumb { height: 180px; background: var(--bg-alt) center center / cover no-repeat; }
    .category-card .body { padding: 20px 24px 24px; }
    .category-card .body h3 { margin-bottom: 6px; }
    .category-card .body p { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; }
    .category-card .body .tag { display: inline-block; padding: 4px 12px; border-radius: 20px; background: var(--accent-light); color: var(--accent); font-size: 0.75rem; font-weight: 600; margin-top: 12px; }

    /* ===== Post / News Cards ===== */
    .post-card {
        display: flex;
        gap: 20px;
        background: #fff;
        border-radius: var(--radius);
        padding: 20px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        transition: var(--transition);
    }
    .post-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
    .post-card .thumb { width: 180px; min-height: 120px; border-radius: var(--radius-sm); background: var(--bg-alt) center center / cover no-repeat; flex-shrink: 0; }
    .post-card .info { flex: 1; display: flex; flex-direction: column; justify-content: center; }
    .post-card .info .meta { display: flex; gap: 12px; align-items: center; font-size: 0.82rem; color: var(--text-light); margin-bottom: 8px; flex-wrap: wrap; }
    .post-card .info .meta .cat { background: var(--accent-light); color: var(--accent); padding: 2px 10px; border-radius: 12px; font-weight: 600; font-size: 0.72rem; }
    .post-card .info h3 { font-size: 1.1rem; margin-bottom: 6px; font-weight: 700; }
    .post-card .info h3 a { color: var(--text); }
    .post-card .info h3 a:hover { color: var(--accent); }
    .post-card .info .excerpt { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    @media (max-width: 640px) {
        .post-card { flex-direction: column; }
        .post-card .thumb { width: 100%; height: 160px; }
    }

    /* ===== Flow / Timeline ===== */
    .flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
    @media (max-width: 900px) { .flow-grid { grid-template-columns: repeat(2, 1fr); } }
    @media (max-width: 520px) { .flow-grid { grid-template-columns: 1fr; } }
    .flow-step {
        text-align: center;
        padding: 32px 20px;
        border-radius: var(--radius);
        background: rgba(255,255,255,0.04);
        border: 1px solid rgba(255,255,255,0.06);
        transition: var(--transition);
        position: relative;
    }
    .flow-step:hover { background: rgba(255,255,255,0.08); }
    .flow-step .step-num {
        width: 48px; height: 48px;
        border-radius: 50%;
        background: var(--accent);
        color: #0f1724;
        font-weight: 800;
        font-size: 1.2rem;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 16px;
    }
    .flow-step h4 { color: #fff; margin-bottom: 6px; }
    .flow-step p { color: rgba(255,255,255,0.55); font-size: 0.88rem; line-height: 1.6; }
    .flow-step::after {
        content: '→';
        position: absolute;
        right: -16px;
        top: 50%;
        transform: translateY(-50%);
        font-size: 1.5rem;
        color: var(--accent);
        opacity: 0.6;
    }
    .flow-step:last-child::after { display: none; }
    @media (max-width: 900px) { .flow-step::after { display: none; } }

    /* ===== FAQ ===== */
    .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
    .faq-item { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #fff; transition: var(--transition); }
    .faq-item:hover { box-shadow: var(--shadow); }
    .faq-item summary { padding: 18px 24px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-size: 1rem; color: var(--text); list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: 0.8rem; color: var(--text-light); transition: var(--transition); }
    .faq-item[open] summary::after { transform: rotate(180deg); }
    .faq-item .answer { padding: 0 24px 20px; color: var(--text-light); font-size: 0.95rem; line-height: 1.7; }

    /* ===== CTA ===== */
    .cta-block {
        background: linear-gradient(135deg, var(--primary) 0%, #1a2744 100%);
        border-radius: var(--radius-lg);
        padding: 60px 48px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-block::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
        opacity: 0.08;
        z-index: 0;
    }
    .cta-block h2 { color: #fff; margin-bottom: 12px; position: relative; z-index: 1; }
    .cta-block p { color: rgba(255,255,255,0.70); max-width: 540px; margin: 0 auto 28px; font-size: 1.05rem; position: relative; z-index: 1; }
    .cta-block .btn { position: relative; z-index: 1; padding: 16px 40px; font-size: 1.05rem; }
    @media (max-width: 768px) { .cta-block { padding: 40px 24px; } }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--primary);
        color: rgba(255,255,255,0.60);
        padding: 48px 0 32px;
        border-top: 1px solid rgba(255,255,255,0.06);
    }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
    @media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
    @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } }
    .footer-brand .logo { margin-bottom: 12px; }
    .footer-brand p { font-size: 0.9rem; max-width: 320px; line-height: 1.7; }
    .footer-col h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; font-weight: 600; }
    .footer-col a { display: block; color: rgba(255,255,255,0.50); font-size: 0.88rem; padding: 4px 0; transition: var(--transition); }
    .footer-col a:hover { color: var(--accent); padding-left: 4px; }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 20px; margin-top: 32px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; }
    .footer-bottom a { color: rgba(255,255,255,0.50); }
    .footer-bottom a:hover { color: var(--accent); }

    /* ===== Utility ===== */
    .text-center { text-align: center; }
    .mt-12 { margin-top: 12px; }
    .mb-12 { margin-bottom: 12px; }
    .gap-8 { gap: 8px; }
    .flex-center { display: flex; align-items: center; justify-content: center; }

    /* ===== Empty State ===== */
    .empty-state { text-align: center; padding: 48px 24px; color: var(--text-light); }
    .empty-state i { font-size: 3rem; color: var(--border); margin-bottom: 16px; }
    .empty-state p { font-size: 1rem; }

    /* ===== Responsive extras ===== */
    @media (max-width: 480px) {
        .section { padding: 48px 0; }
        .feature-card { padding: 24px 20px; }
        .stat-card .num { font-size: 2rem; }
        .hero-content h1 { font-size: 1.6rem; }
        .hero-content p { font-size: 0.92rem; }
    }

/* roulang page: category1 */
/* ===== CSS设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --accent-glow: #ffb703;
            --bg-dark: #0b0f1a;
            --bg-mid: #121726;
            --bg-card: #1a2035;
            --bg-card-hover: #222b45;
            --bg-light: #f8f9fa;
            --text-white: #ffffff;
            --text-light: #e0e0e0;
            --text-muted: #8896a6;
            --text-dark: #1a1a2e;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-light: #e0e0e0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(230, 57, 70, 0.25);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container-w: 1240px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-base);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: var(--text-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        ::selection {
            background: var(--primary);
            color: #fff;
        }
        .container {
            width: 100%;
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(11, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(11, 15, 26, 0.98);
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-white);
            flex-shrink: 0;
        }
        .logo i {
            color: var(--primary);
            font-size: 26px;
        }
        .logo span {
            background: linear-gradient(135deg, var(--text-white) 60%, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-search {
            flex: 1;
            max-width: 420px;
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-search .search-icon {
            position: absolute;
            left: 16px;
            color: var(--text-muted);
            font-size: 15px;
            pointer-events: none;
        }
        .nav-search input {
            width: 100%;
            padding: 10px 18px 10px 44px;
            border-radius: 40px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border-color);
            color: var(--text-white);
            font-size: 14px;
            transition: var(--transition);
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search input:focus {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-links a i {
            font-size: 14px;
        }
        .nav-links a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links a.active {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
        }
        .nav-links a.active:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.45);
        }
        .nav-toggle {
            display: none;
            font-size: 22px;
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
            border: 1px solid var(--border-color);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ===== Hero / 分类横幅 ===== */
        .category-hero {
            padding: 120px 0 72px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-mid) 50%, #0f1a2e 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
            opacity: 0.15;
            mix-blend-mode: screen;
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .category-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .category-hero .breadcrumb a {
            color: var(--text-muted);
        }
        .category-hero .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .category-hero .breadcrumb span {
            color: var(--text-light);
        }
        .category-hero h1 {
            font-size: clamp(36px, 5.5vw, 64px);
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.15;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .category-hero h1 i {
            color: var(--primary);
            margin-right: 10px;
        }
        .category-hero .hero-sub {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            justify-content: center;
            margin-top: 12px;
        }
        .category-hero .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 16px 32px;
            min-width: 120px;
            backdrop-filter: blur(8px);
        }
        .category-hero .hero-stats .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .category-hero .hero-stats .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header h2 {
            font-size: clamp(28px, 3.8vw, 42px);
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }
        .section-header h2 i {
            color: var(--primary);
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header .tagline {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 40px;
            background: rgba(230, 57, 70, 0.12);
            color: var(--primary-light);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            border: 1px solid rgba(230, 57, 70, 0.2);
        }
        .section-bg-mid {
            background: var(--bg-mid);
        }
        .section-bg-card {
            background: var(--bg-card);
        }

        /* ===== 分类卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            border-color: rgba(230, 57, 70, 0.3);
            box-shadow: var(--shadow-glow);
            background: var(--bg-card-hover);
        }
        .guide-card .card-img {
            height: 180px;
            background: var(--bg-mid);
            position: relative;
            overflow: hidden;
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .card-img img {
            transform: scale(1.05);
        }
        .guide-card .card-img .tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            border-radius: 40px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            box-shadow: 0 2px 12px rgba(230, 57, 70, 0.3);
        }
        .guide-card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .guide-card .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .guide-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .guide-card .card-body .meta i {
            margin-right: 4px;
            color: var(--primary);
        }
        .guide-card .card-body .btn-outline {
            align-self: flex-start;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            background: transparent;
            color: var(--text-white);
        }
        .btn-primary {
            background: var(--primary);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            border: 1px solid var(--border-color);
            color: var(--text-light);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary-light);
            background: rgba(230, 57, 70, 0.06);
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 17px;
        }

        /* ===== 热门赛事列表 ===== */
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .hot-item:hover {
            border-color: rgba(230, 57, 70, 0.25);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .hot-item .rank {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            min-width: 40px;
            text-align: center;
            opacity: 0.7;
        }
        .hot-item .hot-info {
            flex: 1;
        }
        .hot-item .hot-info h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 2px;
        }
        .hot-item .hot-info p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .hot-item .hot-badge {
            padding: 6px 16px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary-light);
            border: 1px solid rgba(230, 57, 70, 0.15);
            white-space: nowrap;
        }
        .hot-item .hot-badge.live {
            background: rgba(244, 162, 97, 0.15);
            color: var(--accent);
            border-color: rgba(244, 162, 97, 0.2);
            animation: pulse-badge 2s infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }

        /* ===== 数据指标条 ===== */
        .metric-bar-wrap {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }
        .metric-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            border: 1px solid var(--border-color);
            text-align: center;
            transition: var(--transition);
        }
        .metric-item:hover {
            border-color: rgba(230, 57, 70, 0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .metric-item .metric-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .metric-item .metric-num .unit {
            font-size: 18px;
            color: var(--text-muted);
            font-weight: 400;
        }
        .metric-item .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .metric-item .metric-bar {
            height: 4px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 4px;
            margin-top: 16px;
            overflow: hidden;
        }
        .metric-item .metric-bar .fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            width: 0%;
            transition: width 1.2s ease;
        }

        /* ===== 图文区块 ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .feature-block.reverse {
            direction: rtl;
        }
        .feature-block.reverse>* {
            direction: ltr;
        }
        .feature-block .feat-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            background: var(--bg-mid);
        }
        .feature-block .feat-img img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            transition: var(--transition);
        }
        .feature-block .feat-img:hover img {
            transform: scale(1.03);
        }
        .feature-block .feat-text h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .feature-block .feat-text h3 i {
            color: var(--primary);
        }
        .feature-block .feat-text p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .feature-block .feat-text ul {
            list-style: none;
            padding: 0;
            margin-bottom: 20px;
        }
        .feature-block .feat-text ul li {
            padding: 6px 0;
            font-size: 15px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feature-block .feat-text ul li i {
            color: var(--primary);
            font-size: 14px;
            width: 20px;
            text-align: center;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            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(230, 57, 70, 0.2);
        }
        .faq-item .faq-q {
            padding: 20px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-white);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
            transition: var(--transition);
        }
        .faq-item .faq-q:hover {
            color: var(--primary-light);
        }
        .faq-item .faq-q i {
            transition: var(--transition);
            color: var(--text-muted);
            font-size: 14px;
        }
        .faq-item.active .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-a {
            padding: 0 28px 20px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-card) 0%, #1a2040 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') no-repeat center center / cover;
            opacity: 0.06;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 540px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 14px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-col a i {
            width: 20px;
            text-align: center;
            margin-right: 6px;
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .feature-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .feature-block.reverse {
                direction: ltr;
            }
            .feature-block .feat-img img {
                height: 300px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .nav-links a {
                padding: 6px 14px;
                font-size: 13px;
            }
            .nav-links a i {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .header-inner {
                gap: 12px;
                padding: 0 16px;
            }
            .nav-search {
                max-width: 200px;
            }
            .nav-search input {
                padding: 8px 12px 8px 36px;
                font-size: 13px;
            }
            .nav-search .search-icon {
                left: 12px;
                font-size: 13px;
            }
            .nav-links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(11, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 28px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 18px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .nav-links a i {
                display: inline-block;
                width: 22px;
            }
            .nav-toggle {
                display: flex;
            }
            .category-hero {
                padding: 100px 0 52px;
            }
            .category-hero .hero-stats {
                gap: 16px;
            }
            .category-hero .hero-stats .stat-item {
                padding: 12px 20px;
                min-width: 90px;
            }
            .category-hero .hero-stats .stat-num {
                font-size: 24px;
            }
            .section {
                padding: 52px 0;
            }
            .guide-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .guide-card .card-body {
                padding: 16px 18px 20px;
            }
            .guide-card .card-body h3 {
                font-size: 17px;
            }
            .hot-item {
                padding: 14px 18px;
                gap: 14px;
                flex-wrap: wrap;
            }
            .hot-item .rank {
                font-size: 20px;
                min-width: 30px;
            }
            .metric-bar-wrap {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .metric-item {
                padding: 20px 16px;
            }
            .metric-item .metric-num {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .cta-section {
                padding: 52px 0;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                gap: 8px;
            }
            .nav-search {
                max-width: 120px;
            }
            .logo span {
                font-size: 16px;
            }
            .logo i {
                font-size: 20px;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .metric-bar-wrap {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-col a {
                justify-content: center;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .feature-block .feat-text h3 {
                font-size: 22px;
            }
            .faq-item .faq-q {
                padding: 16px 20px;
                font-size: 15px;
            }
            .faq-item .faq-a {
                padding: 0 20px 16px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 15px;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-40 {
            margin-top: 40px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .d-none {
            display: none;
        }
        @media (max-width: 768px) {
            .d-mobile-block {
                display: block !important;
            }
            .d-mobile-none {
                display: none !important;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #E63946;
            --primary-dark: #C1121F;
            --primary-light: #FF6B6B;
            --secondary: #1D3557;
            --secondary-light: #2D4F7A;
            --accent: #F4A261;
            --bg: #FFFFFF;
            --bg-alt: #F8F9FA;
            --bg-dark: #1A1A2E;
            --bg-card: #FFFFFF;
            --text: #1A1A2E;
            --text-light: #6C757D;
            --text-lighter: #ADB5BD;
            --text-white: #F8F9FA;
            --border: #E0E0E0;
            --border-light: #F0F0F0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 8px 30px rgba(230, 57, 70, 0.18);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
            --gap: 24px;
            --gap-lg: 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);
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: all var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--gap);
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--gap);
            height: 100%;
            display: flex;
            align-items: center;
            gap: var(--gap);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.5px;
        }
        .logo i {
            font-size: 1.6rem;
            color: var(--primary);
        }
        .logo span {
            color: var(--secondary);
        }
        .logo:hover {
            color: var(--primary-dark);
        }
        .logo:hover span {
            color: var(--secondary-light);
        }

        .nav-search {
            flex: 1;
            max-width: 420px;
            position: relative;
            display: none;
        }
        .nav-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-lighter);
            font-size: 0.95rem;
            pointer-events: none;
        }
        .nav-search input {
            width: 100%;
            padding: 10px 16px 10px 42px;
            border-radius: 50px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            font-size: 0.9rem;
            color: var(--text);
            transition: all var(--transition);
        }
        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.12);
            background: var(--bg);
        }
        .nav-search input::placeholder {
            color: var(--text-lighter);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-links a i {
            font-size: 0.85rem;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }
        .nav-links a.active {
            color: var(--bg);
            background: var(--primary);
            box-shadow: 0 2px 12px rgba(230, 57, 70, 0.3);
        }
        .nav-links a.active:hover {
            background: var(--primary-dark);
            color: var(--bg);
        }

        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: var(--bg-alt);
            border: 1px solid var(--border);
            transition: all var(--transition);
            margin-left: auto;
        }
        .nav-toggle:hover {
            background: var(--border);
            color: var(--primary);
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-white);
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.88) 0%, rgba(29, 53, 87, 0.78) 100%);
            z-index: 1;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }
        .article-hero .breadcrumb a:hover {
            color: var(--accent);
        }
        .article-hero .breadcrumb span {
            color: rgba(255, 255, 255, 0.9);
        }
        .article-hero .breadcrumb i {
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .article-hero .hero-category {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            background: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            max-width: 800px;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .article-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .article-hero .hero-meta i {
            margin-right: 6px;
            color: var(--accent);
        }
        .article-hero .hero-meta span {
            display: flex;
            align-items: center;
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 48px 0 64px;
            background: var(--bg);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }

        /* ===== Article Body ===== */
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .article-body .article-cover {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }
        .article-body .article-content {
            padding: 36px 40px 40px;
        }
        .article-body .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--secondary);
            margin: 32px 0 12px;
            line-height: 1.3;
        }
        .article-body .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--secondary);
            margin: 24px 0 10px;
            line-height: 1.4;
        }
        .article-body .article-content p {
            margin-bottom: 16px;
            color: var(--text);
            line-height: 1.8;
            font-size: 1.05rem;
        }
        .article-body .article-content ul,
        .article-body .article-content ol {
            margin: 12px 0 20px;
            padding-left: 24px;
        }
        .article-body .article-content li {
            margin-bottom: 8px;
            line-height: 1.7;
            list-style: disc;
            color: var(--text);
        }
        .article-body .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg-alt);
            padding: 16px 24px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-body .article-content img {
            border-radius: var(--radius-sm);
            margin: 20px 0;
            width: 100%;
        }
        .article-body .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body .article-content a:hover {
            color: var(--primary-dark);
        }

        .article-body .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }
        .article-body .article-tags .tag {
            padding: 4px 14px;
            border-radius: 50px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            font-size: 0.8rem;
            color: var(--text-light);
            transition: all var(--transition);
        }
        .article-body .article-tags .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .article-body .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
        }
        .article-body .article-share span {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }
        .article-body .article-share a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            color: var(--text-light);
            font-size: 0.95rem;
            transition: all var(--transition);
        }
        .article-body .article-share a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: var(--primary);
            font-size: 1rem;
        }

        .sidebar-category-list li {
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-category-list li:last-child {
            border-bottom: none;
        }
        .sidebar-category-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            color: var(--text);
            font-size: 0.95rem;
            transition: all var(--transition);
        }
        .sidebar-category-list a:hover {
            color: var(--primary);
            padding-left: 6px;
        }
        .sidebar-category-list a .badge {
            background: var(--bg-alt);
            padding: 2px 10px;
            border-radius: 50px;
            font-size: 0.75rem;
            color: var(--text-light);
            font-weight: 500;
        }

        .sidebar-post-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
        }
        .sidebar-post-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .sidebar-post-item:first-child {
            padding-top: 0;
        }
        .sidebar-post-item img {
            width: 72px;
            height: 54px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .sidebar-post-item .post-info {
            flex: 1;
            min-width: 0;
        }
        .sidebar-post-item .post-info a {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
            transition: color var(--transition);
        }
        .sidebar-post-item .post-info a:hover {
            color: var(--primary);
        }
        .sidebar-post-item .post-info .post-date {
            font-size: 0.78rem;
            color: var(--text-lighter);
            margin-top: 4px;
            display: block;
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            padding: 4px 12px;
            border-radius: 50px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            font-size: 0.8rem;
            color: var(--text-light);
            transition: all var(--transition);
        }
        .sidebar-tags a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 56px 0;
            background: var(--bg-alt);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .related-section .section-header {
            text-align: center;
            margin-bottom: 36px;
        }
        .related-section .section-header h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .related-section .section-header p {
            color: var(--text-light);
            font-size: 1rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 16px 18px 20px;
        }
        .related-card .card-body .card-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card .card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .related-card .card-body h3 a {
            color: var(--text);
            transition: color var(--transition);
        }
        .related-card .card-body h3 a:hover {
            color: var(--primary);
        }
        .related-card .card-body .card-meta {
            font-size: 0.8rem;
            color: var(--text-lighter);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-card .card-body .card-meta i {
            margin-right: 4px;
            font-size: 0.75rem;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 56px 0 48px;
            background: var(--bg);
        }
        .faq-section .section-header {
            text-align: center;
            margin-bottom: 36px;
        }
        .faq-section .section-header h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .faq-section .section-header p {
            color: var(--text-light);
            font-size: 1rem;
        }
        .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-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            gap: 12px;
            transition: background var(--transition);
        }
        .faq-item .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-item .faq-question i {
            color: var(--primary);
            font-size: 0.9rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 60px 0;
            background: var(--secondary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(29, 53, 87, 0.92) 0%, rgba(26, 26, 46, 0.88) 100%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.45);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            font-size: 1.3rem;
            margin-bottom: 14px;
            display: inline-flex;
        }
        .footer-brand .logo span {
            color: #fff;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col a i {
            width: 20px;
            margin-right: 6px;
            color: var(--primary);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-alt);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
        }
        .not-found-box i {
            font-size: 3rem;
            color: var(--text-lighter);
            margin-bottom: 16px;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            color: var(--text);
            margin-bottom: 8px;
        }
        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 24px;
        }

        /* ===== Mobile Nav Overlay ===== */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 998;
            backdrop-filter: blur(4px);
        }
        .nav-overlay.active {
            display: block;
        }

        /* ===== Responsive ===== */
        @media (min-width: 1025px) {
            .nav-search {
                display: block;
            }
            .nav-links {
                display: flex !important;
            }
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .article-hero h1 {
                font-size: 2.2rem;
            }
            .article-body .article-content {
                padding: 28px 24px 32px;
            }
            .article-body .article-cover {
                height: 300px;
            }
            .nav-search {
                display: none;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 20px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                gap: 6px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 18px;
                border-radius: var(--radius-sm);
                width: 100%;
                font-size: 1rem;
            }
            .nav-links a.active {
                border-radius: var(--radius-sm);
            }
            .nav-toggle {
                display: block;
            }
            .nav-search.mobile-show {
                display: block;
                max-width: 100%;
                margin: 8px 0 4px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
                --gap: 16px;
                --gap-lg: 32px;
            }
            .article-hero {
                padding: 56px 0 40px;
            }
            .article-hero h1 {
                font-size: 1.7rem;
            }
            .article-hero .hero-meta {
                gap: 12px;
                font-size: 0.8rem;
            }
            .article-main {
                padding: 32px 0 40px;
            }
            .article-layout {
                gap: 28px;
            }
            .article-body .article-cover {
                height: 200px;
            }
            .article-body .article-content {
                padding: 20px 16px 24px;
            }
            .article-body .article-content h2 {
                font-size: 1.3rem;
            }
            .article-body .article-content p {
                font-size: 0.95rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .related-card img {
                height: 180px;
            }
            .sidebar-card {
                padding: 18px 16px;
            }
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.88rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .article-body .article-share {
                flex-wrap: wrap;
            }
            .not-found-box {
                padding: 48px 16px;
            }
            .not-found-box h2 {
                font-size: 1.4rem;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo i {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 1.4rem;
            }
            .article-hero .hero-category {
                font-size: 0.7rem;
                padding: 3px 10px;
            }
            .article-body .article-cover {
                height: 160px;
            }
            .article-body .article-content {
                padding: 16px 12px 20px;
            }
            .related-card img {
                height: 150px;
            }
            .related-section .section-header h2 {
                font-size: 1.4rem;
            }
            .faq-section .section-header h2 {
                font-size: 1.4rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .sidebar-post-item img {
                width: 60px;
                height: 46px;
            }
            .sidebar-post-item .post-info a {
                font-size: 0.82rem;
            }
        }