/* roulang page: index */
/* ===== 设计变量 ===== */
    :root {
        --primary: #1a3a5c;
        --primary-light: #2a5a8c;
        --primary-dark: #0f2440;
        --accent: #c8a96e;
        --accent-light: #e0c89a;
        --accent-dark: #a8884e;
        --bg-body: #f9f7f4;
        --bg-card: #ffffff;
        --bg-soft: #f0ece6;
        --bg-dark: #1a2a3a;
        --text-primary: #1e2a3a;
        --text-secondary: #5a6a7a;
        --text-light: #8a9aaa;
        --text-white: #f5f0eb;
        --border: #e5ddd5;
        --border-light: #f0ebe5;
        --radius: 12px;
        --radius-sm: 8px;
        --radius-lg: 20px;
        --shadow-sm: 0 2px 8px rgba(26, 58, 92, 0.06);
        --shadow-md: 0 8px 30px rgba(26, 58, 92, 0.1);
        --shadow-lg: 0 20px 60px rgba(26, 58, 92, 0.12);
        --shadow-xl: 0 30px 80px rgba(26, 58, 92, 0.18);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        --container: 1200px;
        --gap: 24px;
        --gap-lg: 48px;
    }

    /* ===== 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-body);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text-primary);
        background: var(--bg-body);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--accent); }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
    button { cursor: pointer; background: none; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 600; color: var(--primary); }
    h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
    h2 { font-size: clamp(1.5rem, 3.5vw, 2.4rem); margin-bottom: 12px; }
    h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); margin-bottom: 8px; }
    p { margin-bottom: 12px; color: var(--text-secondary); }
    .container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }

    /* ===== 按钮 ===== */
    .btn {
        display: inline-flex; align-items: center; gap: 8px;
        padding: 12px 28px; border-radius: 50px; font-weight: 600; font-size: 0.95rem;
        transition: var(--transition); border: 2px solid transparent;
        justify-content: center; white-space: nowrap;
    }
    .btn-primary { background: var(--accent); color: var(--primary-dark); border-color: var(--accent); }
    .btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(200, 169, 110, 0.35); }
    .btn-outline { background: transparent; color: var(--text-white); border-color: var(--text-white); }
    .btn-outline:hover { background: var(--text-white); color: var(--primary); transform: translateY(-2px); }
    .btn-ghost { background: transparent; color: var(--primary-light); border-color: var(--primary-light); }
    .btn-ghost:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); }
    .btn-lg { padding: 16px 40px; font-size: 1.05rem; }
    .btn-sm { padding: 8px 20px; font-size: 0.85rem; }
    .btn:focus-visible { outline: 3px solid var(--accent-light); outline-offset: 3px; }

    /* ===== 导航 ===== */
    .header {
        position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
        background: rgba(255,255,255,0.95); backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-light);
        transition: var(--transition);
    }
    .header.scrolled { box-shadow: var(--shadow-md); }
    .header-inner {
        display: flex; align-items: center; justify-content: space-between;
        height: 70px; max-width: var(--container); margin: 0 auto; padding: 0 20px;
    }
    .logo { display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 700; color: var(--primary); }
    .logo i { color: var(--accent); font-size: 1.6rem; }
    .logo span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .nav { display: flex; align-items: center; gap: 32px; }
    .nav a {
        font-size: 0.92rem; font-weight: 500; color: var(--text-secondary);
        position: relative; padding: 4px 0; letter-spacing: 0.3px;
    }
    .nav a::after {
        content: ''; position: absolute; bottom: -2px; left: 0; width: 0;
        height: 2px; background: var(--accent); border-radius: 2px;
        transition: var(--transition);
    }
    .nav a:hover { color: var(--primary); }
    .nav a:hover::after { width: 100%; }
    .nav a.active { color: var(--primary); font-weight: 600; }
    .nav a.active::after { width: 100%; }
    .nav-cta .btn { padding: 8px 22px; font-size: 0.88rem; }
    .header-actions { display: flex; align-items: center; gap: 16px; }
    .search-toggle { color: var(--text-secondary); font-size: 1.1rem; padding: 8px; border-radius: 50%; transition: var(--transition); }
    .search-toggle:hover { color: var(--primary); background: var(--bg-soft); }
    .mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; }
    .mobile-toggle span { display: block; width: 24px; height: 2px; background: var(--primary); border-radius: 2px; transition: var(--transition); }

    /* ===== Hero 首屏 ===== */
    .hero {
        position: relative; min-height: 92vh; display: flex; align-items: center;
        margin-top: 70px; overflow: hidden;
        background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    }
    .hero-bg {
        position: absolute; inset: 0; z-index: 0;
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover; background-position: center; background-attachment: fixed;
        opacity: 0.2; mix-blend-mode: overlay;
    }
    .hero-overlay {
        position: absolute; inset: 0; z-index: 1;
        background: radial-gradient(ellipse at 30% 50%, rgba(26,58,92,0.4) 0%, transparent 70%);
    }
    .hero .container { position: relative; z-index: 2; width: 100%; }
    .hero-content { max-width: 680px; color: var(--text-white); padding: 60px 0; }
    .hero-badge {
        display: inline-flex; align-items: center; gap: 6px;
        background: rgba(200,169,110,0.2); border: 1px solid rgba(200,169,110,0.3);
        padding: 6px 18px; border-radius: 50px; font-size: 0.82rem; color: var(--accent-light);
        margin-bottom: 24px; backdrop-filter: blur(10px);
    }
    .hero-badge i { font-size: 0.75rem; }
    .hero h1 { color: #fff; font-weight: 700; margin-bottom: 16px; letter-spacing: -0.5px; }
    .hero h1 span { color: var(--accent); }
    .hero p { font-size: 1.1rem; color: rgba(255,255,255,0.8); margin-bottom: 32px; max-width: 540px; }
    .hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
    .hero-stats {
        display: flex; gap: 40px; margin-top: 48px; padding-top: 32px;
        border-top: 1px solid rgba(255,255,255,0.1);
    }
    .hero-stat { display: flex; flex-direction: column; }
    .hero-stat-num { font-size: 1.8rem; font-weight: 700; color: #fff; }
    .hero-stat-label { font-size: 0.82rem; color: rgba(255,255,255,0.6); }

    /* ===== 板块通用 ===== */
    .section { padding: 80px 0; }
    .section-alt { background: var(--bg-card); }
    .section-soft { background: var(--bg-soft); }
    .section-dark { background: var(--bg-dark); color: var(--text-white); }
    .section-dark h2, .section-dark h3 { color: #fff; }
    .section-dark p { color: rgba(255,255,255,0.7); }
    .section-header { text-align: center; max-width: 680px; margin: 0 auto 48px; }
    .section-header p { font-size: 1.05rem; }
    .section-tag {
        display: inline-flex; align-items: center; gap: 6px;
        background: rgba(200,169,110,0.12); color: var(--accent-dark);
        padding: 4px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: 500;
        margin-bottom: 12px; letter-spacing: 0.5px;
    }
    .section-tag i { font-size: 0.7rem; }

    /* ===== 网格 ===== */
    .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-lg); }
    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
    .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
    .grid-2-3 { display: grid; grid-template-columns: 2fr 1fr; gap: var(--gap-lg); }

    /* ===== 卡片 ===== */
    .card {
        background: var(--bg-card); border-radius: var(--radius);
        box-shadow: var(--shadow-sm); border: 1px solid var(--border-light);
        transition: var(--transition); overflow: hidden;
    }
    .card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: var(--radius) var(--radius) 0 0; }
    .card-body { padding: 24px; }
    .card-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
    .card-body p { font-size: 0.92rem; margin-bottom: 0; }
    .card-tag {
        display: inline-block; padding: 2px 12px; border-radius: 50px;
        font-size: 0.75rem; font-weight: 500; margin-bottom: 10px;
        background: rgba(200,169,110,0.12); color: var(--accent-dark);
    }
    .card-meta { display: flex; align-items: center; gap: 16px; font-size: 0.82rem; color: var(--text-light); margin-top: 12px; }

    /* ===== 分类卡片 ===== */
    .cat-card {
        background: var(--bg-card); border-radius: var(--radius);
        box-shadow: var(--shadow-sm); border: 1px solid var(--border-light);
        padding: 32px 24px; text-align: center; transition: var(--transition);
        display: flex; flex-direction: column; align-items: center; gap: 12px;
    }
    .cat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); }
    .cat-card-icon {
        width: 64px; height: 64px; border-radius: 50%;
        background: linear-gradient(135deg, var(--primary), var(--primary-light));
        display: flex; align-items: center; justify-content: center;
        color: #fff; font-size: 1.5rem; margin-bottom: 4px;
    }
    .cat-card h3 { font-size: 1.1rem; margin-bottom: 4px; }
    .cat-card p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; }
    .cat-card .btn { margin-top: 8px; }

    /* ===== 特色/图标列表 ===== */
    .feature-card { display: flex; gap: 20px; padding: 24px; border-radius: var(--radius); transition: var(--transition); }
    .feature-card:hover { background: var(--bg-card); box-shadow: var(--shadow-sm); }
    .feature-icon {
        flex-shrink: 0; width: 52px; height: 52px; border-radius: var(--radius-sm);
        background: linear-gradient(135deg, var(--accent-light), var(--accent));
        display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--primary-dark);
    }
    .feature-card h4 { font-size: 1rem; margin-bottom: 4px; }
    .feature-card p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; }

    /* ===== 步骤流程 ===== */
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); counter-reset: step; }
    .step-card {
        text-align: center; padding: 32px 20px; border-radius: var(--radius);
        background: var(--bg-card); border: 1px solid var(--border-light);
        position: relative; transition: var(--transition);
    }
    .step-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .step-card::before {
        counter-increment: step; content: counter(step);
        display: inline-flex; align-items: center; justify-content: center;
        width: 40px; height: 40px; border-radius: 50%;
        background: var(--primary); color: #fff; font-weight: 700; font-size: 1rem;
        margin-bottom: 16px;
    }
    .step-card h4 { font-size: 1rem; margin-bottom: 6px; }
    .step-card p { font-size: 0.88rem; color: var(--text-light); margin-bottom: 0; }
    .step-card:not(:last-child)::after {
        content: '→'; position: absolute; right: -18px; top: 50%; transform: translateY(-50%);
        font-size: 1.5rem; color: var(--accent); font-weight: 300;
    }

    /* ===== FAQ ===== */
    .faq-list { max-width: 800px; margin: 0 auto; }
    .faq-item {
        border-bottom: 1px solid var(--border-light); padding: 20px 0;
    }
    .faq-question {
        display: flex; justify-content: space-between; align-items: center;
        cursor: pointer; font-weight: 600; font-size: 1.02rem; color: var(--primary);
        padding: 4px 0; transition: var(--transition);
    }
    .faq-question:hover { color: var(--accent-dark); }
    .faq-question i { font-size: 0.85rem; transition: var(--transition); color: var(--text-light); }
    .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--accent); }
    .faq-answer {
        max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease;
        padding: 0 20px 0 0; color: var(--text-secondary); font-size: 0.95rem;
        line-height: 1.8;
    }
    .faq-item.open .faq-answer { max-height: 300px; padding-top: 12px; }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        border-radius: var(--radius-lg); padding: 60px 48px; text-align: center;
        position: relative; overflow: hidden;
    }
    .cta-section::before {
        content: ''; position: absolute; inset: 0;
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover; background-position: center; opacity: 0.08; mix-blend-mode: overlay;
    }
    .cta-section .container { position: relative; z-index: 1; }
    .cta-section h2 { color: #fff; font-size: clamp(1.5rem, 3vw, 2.2rem); margin-bottom: 12px; }
    .cta-section p { color: rgba(255,255,255,0.8); max-width: 540px; margin: 0 auto 28px; font-size: 1.05rem; }
    .cta-section .btn { font-size: 1rem; padding: 14px 40px; }

    /* ===== 资讯列表 ===== */
    .post-list { display: flex; flex-direction: column; gap: 16px; }
    .post-item {
        display: flex; align-items: flex-start; gap: 20px;
        padding: 20px; border-radius: var(--radius);
        background: var(--bg-card); border: 1px solid var(--border-light);
        transition: var(--transition);
    }
    .post-item:hover { box-shadow: var(--shadow-sm); transform: translateX(4px); }
    .post-thumb {
        width: 120px; min-height: 80px; border-radius: var(--radius-sm);
        background: var(--bg-soft); flex-shrink: 0; overflow: hidden;
    }
    .post-thumb img { width: 100%; height: 100%; object-fit: cover; }
    .post-info { flex: 1; min-width: 0; }
    .post-info h4 { font-size: 1rem; margin-bottom: 4px; }
    .post-info h4 a { color: var(--text-primary); }
    .post-info h4 a:hover { color: var(--accent-dark); }
    .post-info p { font-size: 0.88rem; color: var(--text-light); margin-bottom: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .post-meta { display: flex; align-items: center; gap: 12px; font-size: 0.78rem; color: var(--text-light); margin-top: 6px; }
    .post-meta span { display: flex; align-items: center; gap: 4px; }

    /* ===== 页脚 ===== */
    .footer {
        background: var(--primary-dark); color: rgba(255,255,255,0.7);
        padding: 48px 0 32px;
    }
    .footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
    .footer-brand .logo { color: #fff; margin-bottom: 12px; }
    .footer-brand .logo span { -webkit-text-fill-color: #fff; }
    .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.6); max-width: 320px; }
    .footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; }
    .footer a { color: rgba(255,255,255,0.6); font-size: 0.9rem; display: block; padding: 4px 0; }
    .footer a:hover { color: var(--accent); }
    .footer-bottom {
        margin-top: 32px; padding-top: 20px;
        border-top: 1px solid rgba(255,255,255,0.08);
        display: flex; justify-content: space-between; align-items: center;
        flex-wrap: wrap; gap: 12px; font-size: 0.82rem; color: rgba(255,255,255,0.4);
    }
    .footer-socials { display: flex; gap: 12px; }
    .footer-socials a {
        width: 36px; height: 36px; border-radius: 50%;
        border: 1px solid rgba(255,255,255,0.12);
        display: flex; align-items: center; justify-content: center;
        color: rgba(255,255,255,0.5); font-size: 0.9rem; padding: 0;
    }
    .footer-socials a:hover { border-color: var(--accent); color: var(--accent); }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .grid-4 { grid-template-columns: repeat(2, 1fr); }
        .steps { grid-template-columns: repeat(2, 1fr); }
        .step-card:nth-child(2)::after { display: none; }
        .footer-inner { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
        .nav { display: none; }
        .mobile-toggle { display: flex; }
        .nav.open {
            display: flex; flex-direction: column; position: absolute; top: 70px; left: 0; width: 100%;
            background: rgba(255,255,255,0.98); backdrop-filter: blur(20px);
            padding: 20px; border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-md); gap: 16px;
        }
        .nav.open a { font-size: 1rem; padding: 8px 0; }
        .nav-cta { display: none; }
        .hero { min-height: 80vh; }
        .hero-content { padding: 40px 0; }
        .hero-stats { gap: 24px; flex-wrap: wrap; }
        .grid-2, .grid-2-3 { grid-template-columns: 1fr; }
        .grid-3 { grid-template-columns: 1fr; }
        .section { padding: 56px 0; }
        .steps { grid-template-columns: 1fr; }
        .step-card::after { display: none !important; }
        .cta-section { padding: 40px 24px; }
        .footer-inner { grid-template-columns: 1fr; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .post-item { flex-direction: column; }
        .post-thumb { width: 100%; height: 140px; }
    }

    @media (max-width: 520px) {
        .hero h1 { font-size: 1.6rem; }
        .hero p { font-size: 0.95rem; }
        .hero-actions { flex-direction: column; width: 100%; }
        .hero-actions .btn { width: 100%; }
        .hero-stats { flex-direction: column; gap: 12px; }
        .grid-4 { grid-template-columns: 1fr; }
        .cat-card { padding: 24px 16px; }
        .feature-card { flex-direction: column; align-items: flex-start; padding: 16px; }
        .section-header { margin-bottom: 32px; }
        .btn-lg { padding: 14px 28px; font-size: 0.95rem; }
        .header-inner { height: 60px; }
        .hero { margin-top: 60px; min-height: 70vh; }
    }

    /* ===== 工具类 ===== */
    .text-center { text-align: center; }
    .mt-8 { margin-top: 8px; }
    .mt-16 { margin-top: 16px; }
    .mt-24 { margin-top: 24px; }
    .mt-32 { margin-top: 32px; }
    .mb-16 { margin-bottom: 16px; }
    .gap-8 { gap: 8px; }
    .gap-16 { gap: 16px; }
    .flex-center { display: flex; align-items: center; justify-content: center; }
    .flex-wrap { flex-wrap: wrap; }
    .w-full { width: 100%; }

    /* ===== 动画 ===== */
    @keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
    .animate-fade-up { animation: fadeUp 0.8s ease forwards; }
    .delay-1 { animation-delay: 0.1s; }
    .delay-2 { animation-delay: 0.2s; }
    .delay-3 { animation-delay: 0.3s; }
    .delay-4 { animation-delay: 0.4s; }

/* roulang page: category1 */
/* ===== :root 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #dbeafe;
            --primary-gradient: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-soft: #f1f5f9;
            --bg-card: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
            --spacing-section: 80px;
            --spacing-block: 48px;
        }

        /* ===== 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-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }

        .section-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 100px;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-sub {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 40px;
            line-height: 1.6;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }
        .btn-accent {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            color: #fff;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
            color: #fff;
        }

        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 0.78rem;
            font-weight: 500;
            background: var(--bg-soft);
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .tag-primary {
            background: var(--primary-light);
            color: var(--primary);
        }
        .tag-accent {
            background: #fef3c7;
            color: #b45309;
        }
        .tag-green {
            background: #d1fae5;
            color: #065f46;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        /* ===== 导航 ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-primary);
            text-decoration: none;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .logo span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.85;
        }

        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        .nav-cta {
            margin-left: 12px;
        }
        .nav-cta .btn {
            padding: 8px 20px;
            font-size: 0.88rem;
            border-radius: var(--radius-sm);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: var(--bg-soft);
        }

        /* ===== Banner ===== */
        .banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #1e40af 100%);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .banner h1 {
            font-size: 2.8rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .banner .banner-meta {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.92rem;
        }
        .banner .banner-meta i {
            margin-right: 6px;
            color: var(--accent);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--bg-soft);
        }
        .section-white {
            background: var(--bg-white);
        }

        /* ===== 登录方式卡片 ===== */
        .methods-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .method-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 36px 28px 28px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .method-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: var(--primary-light);
        }
        .method-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.8rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .method-card:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
        }
        .method-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .method-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .method-card .tag {
            font-size: 0.75rem;
        }

        /* ===== 步骤区 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 28px 20px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ===== 安全提示 ===== */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .safety-card {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 24px 20px;
            transition: var(--transition);
        }
        .safety-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .safety-card .s-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: #dbeafe;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }
        .safety-card .s-icon.warn {
            background: #fef3c7;
            color: #b45309;
        }
        .safety-card .s-icon.danger {
            background: #fee2e2;
            color: #b91c1c;
        }
        .safety-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .safety-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-card);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg-white);
            transition: var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            background: var(--bg-soft);
        }
        .faq-question i {
            color: var(--text-muted);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
            border-top: 0 solid var(--border-color);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 22px 20px;
            border-top-width: 1px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-gradient);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .cta-section .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
            color: var(--primary-dark);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
        }
        .footer .container {
            max-width: var(--container-max);
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        .footer-brand .logo i {
            color: var(--primary);
        }
        .footer-brand .logo span {
            -webkit-text-fill-color: #fff;
            background: none;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-socials {
            display: flex;
            gap: 12px;
        }
        .footer-socials a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-socials a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 60px;
            }
            .methods-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .banner h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
                --nav-height: 64px;
            }
            .nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border-color);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                box-shadow: var(--shadow-md);
            }
            .nav.open {
                display: flex;
            }
            .nav a {
                width: 100%;
                padding: 12px 16px;
            }
            .nav a.active::after {
                display: none;
            }
            .nav-cta {
                margin-left: 0;
                width: 100%;
                margin-top: 8px;
            }
            .nav-cta .btn {
                width: 100%;
                justify-content: center;
            }
            .menu-toggle {
                display: block;
            }

            .banner {
                padding: 60px 0 48px;
                min-height: 280px;
            }
            .banner h1 {
                font-size: 1.8rem;
            }
            .banner p {
                font-size: 1rem;
            }

            .section-title {
                font-size: 1.6rem;
            }
            .section-sub {
                font-size: 0.95rem;
            }

            .methods-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .safety-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .banner h1 {
                font-size: 1.5rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .method-card {
                padding: 24px 18px 20px;
            }
            .step-item {
                padding: 20px 16px;
            }
            .safety-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2d5a8c;
            --primary-dark: #0e1f33;
            --accent: #e8b84b;
            --accent-light: #f0d48a;
            --accent-dark: #c99a2e;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-soft: #f1f5f9;
            --bg-card: #ffffff;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-inverse: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.16);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
            --spacing-section: 80px;
            --spacing-block: 48px;
        }

        /* ===== 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-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

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

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== 导航 Header ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: var(--transition);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .header .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
        }

        .header .logo i {
            font-size: 26px;
            color: var(--accent);
        }

        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav a:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }

        .nav a.active {
            color: var(--primary);
            background: rgba(26, 58, 92, 0.08);
            font-weight: 600;
        }

        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-cta {
            margin-left: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            text-align: center;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--text-inverse);
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 58, 92, 0.25);
        }

        .btn-primary:focus-visible {
            outline: 3px solid var(--accent-light);
            outline-offset: 2px;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }

        .btn-accent:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 184, 75, 0.35);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-inverse);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }

        /* ===== Mobile Menu Toggle ===== */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
            background: none;
            border: none;
        }

        .menu-toggle span {
            width: 26px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            padding-top: var(--header-height);
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            overflow: hidden;
        }

        .page-banner .bg-wrap {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .page-banner .bg-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
        }

        .page-banner .bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14, 31, 51, 0.88) 0%, rgba(26, 58, 92, 0.72) 100%);
            z-index: 1;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-inverse);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
        }

        .page-banner .breadcrumb a {
            color: var(--accent);
        }

        .page-banner .breadcrumb a:hover {
            color: var(--accent-light);
        }

        .page-banner .breadcrumb span {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-title h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-title p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-title .badge {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(232, 184, 75, 0.15);
            color: var(--accent-dark);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        /* ===== 卡片基础 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }

        .card-body {
            padding: 24px;
        }

        .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .card-body p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }

        .card .tag {
            display: inline-block;
            padding: 2px 12px;
            background: var(--bg-soft);
            border-radius: 12px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== 特点/图标卡片 ===== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: var(--accent-light);
        }

        .feature-card .icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(26, 58, 92, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 28px;
            color: var(--primary);
            transition: var(--transition);
        }

        .feature-card:hover .icon {
            background: var(--primary);
            color: var(--text-inverse);
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .stat-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .stat-item .number {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-item .number .suffix {
            font-size: 24px;
            font-weight: 600;
            color: var(--accent-dark);
        }

        .stat-item .label {
            font-size: 15px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== 时间线 ===== */
        .timeline {
            position: relative;
            padding-left: 40px;
            max-width: 720px;
            margin: 0 auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--accent), var(--primary-light));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding-bottom: 40px;
            padding-left: 24px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent);
            border: 3px solid var(--bg-body);
            box-shadow: 0 0 0 3px var(--primary-light);
        }

        .timeline-item .time {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-dark);
            margin-bottom: 4px;
        }

        .timeline-item h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .timeline-item p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 徽章 / 标签 ===== */
        .badge-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 16px;
            font-size: 13px;
            font-weight: 500;
            background: var(--bg-soft);
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        .badge-tag.primary {
            background: rgba(26, 58, 92, 0.1);
            color: var(--primary);
            border-color: transparent;
        }

        .badge-tag.accent {
            background: rgba(232, 184, 75, 0.15);
            color: var(--accent-dark);
            border-color: transparent;
        }

        /* ===== 内容列表 ===== */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .content-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .content-list-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--accent-light);
            transform: translateX(4px);
        }

        .content-list-item .num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-inverse);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .content-list-item .num.accent {
            background: var(--accent);
            color: var(--primary-dark);
        }

        .content-list-item .info h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--primary);
        }

        .content-list-item .info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== 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(--accent-light);
        }

        .faq-question {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question i {
            font-size: 18px;
            color: var(--accent-dark);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-question.open i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

        .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(232, 184, 75, 0.08);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-inverse);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }

        .cta-section .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            position: relative;
            z-index: 1;
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 auto 16px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 56px 0 0;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-inverse);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .logo i {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }

        .footer-socials {
            display: flex;
            gap: 12px;
        }

        .footer-socials a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 18px;
            transition: var(--transition);
        }

        .footer-socials a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }

        .footer h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 18px;
        }

        .footer a:not(.footer-socials a) {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer a:not(.footer-socials a):hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            gap: 12px;
        }

        .mt-16 {
            margin-top: 16px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 56px;
                --header-height: 64px;
            }
            .menu-toggle {
                display: flex;
            }
            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav a.active::after {
                display: none;
            }
            .nav a.active {
                background: rgba(26, 58, 92, 0.08);
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                width: 100%;
            }
            .nav-cta .btn {
                width: 100%;
            }
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item .number {
                font-size: 30px;
            }
            .page-banner {
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 16px;
            }
            .section-title h2 {
                font-size: 26px;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .timeline {
                padding-left: 28px;
            }
            .timeline-item {
                padding-left: 16px;
            }
            .timeline-item::before {
                left: -22px;
                width: 12px;
                height: 12px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .number {
                font-size: 26px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .section-title h2 {
                font-size: 22px;
            }
            .feature-card {
                padding: 24px 20px;
            }
            .content-list-item {
                flex-direction: column;
                align-items: stretch;
            }
            .content-list-item .num {
                margin-bottom: 8px;
            }
            .btn-lg {
                padding: 12px 28px;
                font-size: 15px;
            }
            .cta-section {
                padding: 32px 16px;
                border-radius: var(--radius-md);
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --secondary: #d4a843;
            --secondary-light: #e8c97a;
            --accent: #f0f5fa;
            --bg-body: #f9fbfd;
            --bg-card: #ffffff;
            --bg-section-alt: #f0f5fa;
            --bg-footer: #0f2440;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #8a9aaa;
            --text-light: #ffffff;
            --border-color: #e4e9ef;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(26,58,92,0.06);
            --shadow-md: 0 8px 30px rgba(26,58,92,0.10);
            --shadow-lg: 0 20px 60px rgba(26,58,92,0.14);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.25s ease;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
        }
        a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.3; color: var(--primary); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2.0rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 500;
            line-height: 1;
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-light);
            box-shadow: 0 4px 14px rgba(26,58,92,0.25);
        }
        .btn-primary:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,58,92,0.30); }
        .btn-secondary {
            background: var(--secondary);
            color: var(--primary-dark);
            box-shadow: 0 4px 14px rgba(212,168,67,0.30);
        }
        .btn-secondary:hover { background: var(--secondary-light); color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,168,67,0.35); }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .btn-sm { padding: 8px 18px; font-size: 13px; border-radius: var(--radius-sm); }
        .btn-lg { padding: 16px 36px; font-size: 17px; border-radius: var(--radius-lg); }

        /* ===== Tags / Badges ===== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary-light);
            background: rgba(42,90,140,0.10);
            border-radius: 100px;
            transition: background var(--transition);
        }
        .tag:hover { background: rgba(42,90,140,0.20); color: var(--primary); }
        .tag-secondary {
            background: rgba(212,168,67,0.15);
            color: var(--secondary);
        }
        .tag-secondary:hover { background: rgba(212,168,67,0.25); color: #b8942e; }

        /* ===== Header / Nav ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
        }
        .logo i { color: var(--secondary); font-size: 26px; }
        .logo span { color: var(--primary); }
        .logo:hover span { color: var(--primary-light); }

        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
        }
        .nav a {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav a:hover { color: var(--primary); background: rgba(26,58,92,0.05); }
        .nav a.active { color: var(--primary); background: rgba(26,58,92,0.08); font-weight: 600; }
        .nav-cta { margin-left: 8px; }
        .nav-cta .btn { padding: 8px 20px; font-size: 14px; }

        /* Hamburger (mobile) */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 4px;
            transition: all var(--transition);
        }

        /* ===== Hero / Banner (Article) ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-light);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,36,64,0.85) 0%, rgba(26,58,92,0.70) 100%);
            z-index: 1;
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
        }
        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255,255,255,0.70);
            margin-bottom: 24px;
        }
        .article-banner .breadcrumb a { color: rgba(255,255,255,0.75); }
        .article-banner .breadcrumb a:hover { color: var(--secondary); }
        .article-banner .breadcrumb .sep { opacity: 0.5; }
        .article-banner .post-category {
            display: inline-block;
            padding: 6px 16px;
            background: var(--secondary);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            border-radius: 100px;
            margin-bottom: 16px;
        }
        .article-banner h1 {
            font-size: 2.6rem;
            color: #fff;
            line-height: 1.25;
            max-width: 800px;
            margin-bottom: 16px;
        }
        .article-banner .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 14px;
            color: rgba(255,255,255,0.75);
        }
        .article-banner .meta i { margin-right: 6px; color: var(--secondary); }

        /* ===== Article Content ===== */
        .article-section {
            padding: 60px 0;
            background: var(--bg-body);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            border: 1px solid var(--border-color);
        }
        .article-main .featured-image {
            margin: -40px -44px 32px -44px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            overflow: hidden;
            max-height: 460px;
        }
        .article-main .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .article-content {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-content p { margin-bottom: 1.4rem; color: var(--text-primary); }
        .article-content h2, .article-content h3, .article-content h4 { margin-top: 2rem; margin-bottom: 0.8rem; }
        .article-content ul, .article-content ol { margin-bottom: 1.4rem; padding-left: 1.6rem; list-style: disc; }
        .article-content ol { list-style: decimal; }
        .article-content li { margin-bottom: 0.4rem; color: var(--text-secondary); }
        .article-content img { margin: 1.6rem 0; border-radius: var(--radius-md); }
        .article-content blockquote {
            border-left: 4px solid var(--secondary);
            background: rgba(212,168,67,0.08);
            padding: 16px 24px;
            margin: 1.6rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content a { color: var(--primary-light); text-decoration: underline; }
        .article-content a:hover { color: var(--secondary); }

        /* ===== Article Footer (tags, share) ===== */
        .article-footer {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--text-secondary);
            transition: all var(--transition);
            font-size: 16px;
        }
        .article-share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h4 {
            font-size: 17px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i { color: var(--secondary); }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.5;
            transition: color var(--transition);
        }
        .sidebar-list a:hover { color: var(--primary); }
        .sidebar-list a i { margin-top: 3px; color: var(--secondary); font-size: 12px; }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            border: none;
        }
        .sidebar-cta h4 { color: #fff; }
        .sidebar-cta p { color: rgba(255,255,255,0.75); font-size: 14px; margin-bottom: 16px; }
        .sidebar-cta .btn { width: 100%; }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-section-alt);
        }
        .related-section .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .related-section .section-title h2 { font-size: 1.8rem; }
        .related-section .section-title p { color: var(--text-muted); font-size: 15px; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card .card-img {
            height: 180px;
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body {
            padding: 16px 20px 20px;
        }
        .related-card .card-body .tag { font-size: 11px; margin-bottom: 8px; }
        .related-card .card-body h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .related-card .card-body h3 a { color: var(--primary); }
        .related-card .card-body h3 a:hover { color: var(--primary-light); }
        .related-card .card-body .date {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: #fff;
            text-align: center;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 { color: #fff; font-size: 2.2rem; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.80); max-width: 600px; margin: 0 auto 32px; font-size: 17px; }
        .cta-section .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-footer);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 0;
        }
        .footer .container { max-width: var(--max-width); }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: #fff; margin-bottom: 12px; }
        .footer-brand .logo span { color: #fff; }
        .footer-brand .logo i { color: var(--secondary); }
        .footer-brand p { font-size: 14px; color: rgba(255,255,255,0.60); line-height: 1.7; max-width: 320px; }
        .footer-socials { display: flex; gap: 12px; margin-top: 16px; }
        .footer-socials a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.70);
            font-size: 16px;
            transition: all var(--transition);
        }
        .footer-socials a:hover { background: var(--secondary); color: var(--primary-dark); transform: translateY(-2px); }
        .footer h4 {
            font-size: 15px;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer a {
            display: block;
            font-size: 14px;
            color: rgba(255,255,255,0.60);
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer a:hover { color: var(--secondary); }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255,255,255,0.45);
        }

        /* ===== Not Found State ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-box i { font-size: 56px; color: var(--text-muted); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 1.6rem; margin-bottom: 12px; }
        .not-found-box p { color: var(--text-muted); margin-bottom: 24px; }

        /* ===== Mobile Nav Drawer ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-inner { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
            .container { padding: 0 16px; }

            .nav { display: none; }
            .hamburger { display: flex; }
            .nav.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                gap: 4px;
                z-index: 99;
            }
            .nav.open a { padding: 12px 16px; font-size: 16px; }
            .nav-cta { margin-left: 0; margin-top: 8px; width: 100%; }
            .nav-cta .btn { width: 100%; justify-content: center; }

            .article-banner { padding: 60px 0 40px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-main { padding: 24px 20px; }
            .article-main .featured-image { margin: -24px -20px 24px -20px; max-height: 260px; }
            .article-content { font-size: 16px; }
            .article-footer { flex-direction: column; align-items: flex-start; }

            .related-grid { grid-template-columns: 1fr; }
            .cta-section h2 { font-size: 1.6rem; }
            .footer-inner { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        @media (max-width: 520px) {
            .article-banner h1 { font-size: 1.5rem; }
            .article-main { padding: 18px 14px; }
            .article-main .featured-image { margin: -18px -14px 18px -14px; }
            .article-content { font-size: 15px; }
            .sidebar-card { padding: 20px; }
            .cta-section { padding: 60px 0; }
            .cta-section .btn-group { flex-direction: column; align-items: center; }
            .cta-section .btn-group .btn { width: 100%; max-width: 280px; }
        }