/* roulang page: index */
/* ===== 设计变量 ===== */
    :root {
        --primary: #1a1a2e;
        --primary-light: #2d2d4a;
        --primary-dark: #0f0f1a;
        --accent: #e94560;
        --accent-light: #ff6b81;
        --accent-dark: #c23152;
        --secondary: #0f3460;
        --secondary-light: #1a4f8a;
        --bg-dark: #0a0a14;
        --bg-card: #12121e;
        --bg-section: #0f0f1c;
        --bg-warm: #1a1a2e;
        --text-light: #f0f0f5;
        --text-body: #c8c8d8;
        --text-muted: #8888a0;
        --text-accent: #e94560;
        --border-color: #2a2a44;
        --border-light: #3a3a5a;
        --radius-sm: 8px;
        --radius-md: 16px;
        --radius-lg: 24px;
        --radius-xl: 32px;
        --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
        --shadow-md: 0 8px 30px rgba(0,0,0,0.4);
        --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
        --shadow-glow: 0 0 40px rgba(233,69,96,0.15);
        --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        --font-serif: 'Georgia', 'Noto Serif SC', serif;
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --max-width: 1200px;
        --nav-height: 72px;
        --section-spacing: 100px;
    }

    /* ===== 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-body);
        background: var(--bg-dark);
        overflow-x: hidden;
        min-height: 100vh;
    }
    a { color: var(--text-accent); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--accent-light); }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    ul, ol { list-style: none; }
    button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
    button { cursor: pointer; background: none; }
    h1, h2, h3, h4, h5, h6 { color: var(--text-light); font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; }
    h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); }
    h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
    h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); }
    h4 { font-size: clamp(1rem, 1.8vw, 1.3rem); }
    p { margin-bottom: 1rem; color: var(--text-body); }
    .container {
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 24px;
    }
    .section { padding: var(--section-spacing) 0; position: relative; }
    .section-title {
        text-align: center;
        margin-bottom: 60px;
    }
    .section-title h2 { margin-bottom: 16px; }
    .section-title p { 
        max-width: 640px; 
        margin: 0 auto; 
        color: var(--text-muted);
        font-size: 1.1rem;
    }
    .section-divider {
        width: 60px;
        height: 4px;
        background: linear-gradient(90deg, var(--accent), var(--secondary-light));
        border-radius: 4px;
        margin: 16px auto 24px;
    }

    /* ===== 导航 ===== */
    .site-header {
        position: fixed;
        top: 20px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 1000;
        width: calc(100% - 48px);
        max-width: 960px;
        background: rgba(18, 18, 30, 0.85);
        backdrop-filter: blur(24px) saturate(1.4);
        -webkit-backdrop-filter: blur(24px) saturate(1.4);
        border-radius: 60px;
        border: 1px solid rgba(255,255,255,0.06);
        box-shadow: 0 8px 40px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.05);
        padding: 0 8px;
        transition: var(--transition);
    }
    .site-header.scrolled {
        background: rgba(10, 10, 20, 0.95);
        box-shadow: 0 8px 50px rgba(0,0,0,0.6);
    }
    .nav-container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: var(--nav-height);
        padding: 0 16px;
    }
    .nav-logo {
        font-size: 1.3rem;
        font-weight: 700;
        color: var(--text-light);
        display: flex;
        align-items: center;
        gap: 10px;
        letter-spacing: -0.02em;
    }
    .nav-logo i {
        color: var(--accent);
        font-size: 1.5rem;
    }
    .nav-logo span { 
        background: linear-gradient(135deg, #f0f0f5, #e94560);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .nav-links {
        display: flex;
        align-items: center;
        gap: 4px;
    }
    .nav-links a {
        padding: 8px 20px;
        border-radius: 40px;
        color: var(--text-body);
        font-size: 0.92rem;
        font-weight: 500;
        transition: var(--transition);
        position: relative;
    }
    .nav-links a:hover {
        color: var(--text-light);
        background: rgba(255,255,255,0.06);
    }
    .nav-links a.active {
        color: var(--text-light);
        background: rgba(233,69,96,0.15);
        box-shadow: inset 0 0 0 1px rgba(233,69,96,0.2);
    }
    .nav-toggle {
        display: none;
        font-size: 1.5rem;
        color: var(--text-light);
        background: rgba(255,255,255,0.08);
        width: 44px;
        height: 44px;
        border-radius: 50%;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
    }
    .nav-toggle:hover { background: rgba(255,255,255,0.15); }

    /* ===== Hero ===== */
    .hero {
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        padding: 120px 24px 80px;
        overflow: hidden;
    }
    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(10,10,20,0.3) 0%, rgba(10,10,20,0.85) 70%, var(--bg-dark) 100%);
        z-index: 1;
    }
    .hero::after {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(ellipse at 30% 40%, rgba(233,69,96,0.08) 0%, transparent 70%);
        z-index: 1;
    }
    .hero-content {
        position: relative;
        z-index: 2;
        text-align: center;
        max-width: 800px;
    }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(233,69,96,0.12);
        border: 1px solid rgba(233,69,96,0.2);
        padding: 6px 18px;
        border-radius: 40px;
        font-size: 0.85rem;
        color: var(--accent-light);
        margin-bottom: 28px;
        backdrop-filter: blur(8px);
    }
    .hero-badge i { font-size: 0.75rem; }
    .hero h1 {
        margin-bottom: 20px;
        background: linear-gradient(135deg, #ffffff 0%, #e0d0ff 40%, #e94560 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .hero p {
        font-size: 1.2rem;
        color: rgba(255,255,255,0.7);
        max-width: 600px;
        margin: 0 auto 36px;
        line-height: 1.8;
    }
    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        justify-content: center;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 14px 34px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1rem;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }
    .btn-primary {
        background: linear-gradient(135deg, var(--accent), var(--accent-dark));
        color: #fff;
        box-shadow: 0 4px 24px rgba(233,69,96,0.35);
    }
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 40px rgba(233,69,96,0.45);
        color: #fff;
    }
    .btn-secondary {
        background: rgba(255,255,255,0.06);
        border: 1px solid rgba(255,255,255,0.12);
        color: var(--text-light);
    }
    .btn-secondary:hover {
        background: rgba(255,255,255,0.12);
        transform: translateY(-2px);
        color: var(--text-light);
    }
    .btn-sm {
        padding: 10px 22px;
        font-size: 0.88rem;
    }
    .hero-stats {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 40px;
        margin-top: 56px;
        padding-top: 40px;
        border-top: 1px solid rgba(255,255,255,0.06);
    }
    .hero-stat-item {
        text-align: center;
    }
    .hero-stat-item .num {
        font-size: 2rem;
        font-weight: 700;
        color: var(--text-light);
        display: block;
        line-height: 1.2;
    }
    .hero-stat-item .label {
        font-size: 0.85rem;
        color: var(--text-muted);
        margin-top: 4px;
    }

    /* ===== 板块通用 ===== */
    .bg-card-alt { background: var(--bg-card); }
    .bg-section-alt { background: var(--bg-section); }
    .grid-2, .grid-3, .grid-4 {
        display: grid;
        gap: 28px;
    }
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }

    /* ===== 卡片 ===== */
    .card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
        padding: 32px 28px;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }
    .card:hover {
        border-color: var(--border-light);
        box-shadow: var(--shadow-md), var(--shadow-glow);
        transform: translateY(-4px);
    }
    .card-icon {
        width: 56px;
        height: 56px;
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        margin-bottom: 20px;
        background: rgba(233,69,96,0.1);
        color: var(--accent);
    }
    .card h3 { margin-bottom: 12px; font-size: 1.2rem; }
    .card p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 0; }

    /* ===== 特色/分类卡片 ===== */
    .feature-card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
        padding: 0;
        overflow: hidden;
        transition: var(--transition);
    }
    .feature-card:hover {
        border-color: var(--border-light);
        box-shadow: var(--shadow-md);
        transform: translateY(-4px);
    }
    .feature-card img {
        width: 100%;
        height: 200px;
        object-fit: cover;
        border-radius: 0;
    }
    .feature-card-body {
        padding: 24px 24px 28px;
    }
    .feature-card-body .tag {
        display: inline-block;
        padding: 4px 14px;
        border-radius: 40px;
        font-size: 0.75rem;
        font-weight: 600;
        background: rgba(233,69,96,0.12);
        color: var(--accent-light);
        margin-bottom: 12px;
        letter-spacing: 0.02em;
    }
    .feature-card-body h3 { font-size: 1.15rem; margin-bottom: 10px; }
    .feature-card-body p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 16px; }
    .feature-card-body .link {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--accent);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .feature-card-body .link:hover { gap: 10px; }

    /* ===== 资讯列表 ===== */
    .news-list { display: flex; flex-direction: column; gap: 16px; }
    .news-item {
        display: flex;
        align-items: flex-start;
        gap: 20px;
        padding: 20px 24px;
        background: var(--bg-card);
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-color);
        transition: var(--transition);
    }
    .news-item:hover {
        border-color: var(--border-light);
        box-shadow: var(--shadow-sm);
        transform: translateX(4px);
    }
    .news-item .date {
        flex-shrink: 0;
        width: 56px;
        text-align: center;
        color: var(--text-muted);
        font-size: 0.8rem;
        line-height: 1.3;
    }
    .news-item .date .day {
        font-size: 1.4rem;
        font-weight: 700;
        color: var(--text-light);
        display: block;
    }
    .news-item .info { flex: 1; }
    .news-item .info h4 { font-size: 1rem; margin-bottom: 4px; }
    .news-item .info h4 a { color: var(--text-light); }
    .news-item .info h4 a:hover { color: var(--accent); }
    .news-item .info .meta {
        font-size: 0.82rem;
        color: var(--text-muted);
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }
    .news-item .info .meta span { display: inline-flex; align-items: center; gap: 4px; }

    /* ===== 流程步骤 ===== */
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
    .step-item {
        text-align: center;
        padding: 32px 20px;
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
        position: relative;
        transition: var(--transition);
    }
    .step-item:hover {
        border-color: var(--border-light);
        box-shadow: var(--shadow-sm);
    }
    .step-item::before {
        counter-increment: step;
        content: counter(step);
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--accent), var(--accent-dark));
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 1.1rem;
        margin: 0 auto 18px;
        box-shadow: 0 4px 20px rgba(233,69,96,0.25);
    }
    .step-item h4 { margin-bottom: 8px; font-size: 1.05rem; }
    .step-item p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 0; }

    /* ===== FAQ ===== */
    .faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
    .faq-item {
        background: var(--bg-card);
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-color);
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item:hover { border-color: var(--border-light); }
    .faq-question {
        padding: 20px 24px;
        font-weight: 600;
        color: var(--text-light);
        font-size: 1rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        cursor: pointer;
        transition: var(--transition);
        background: none;
        width: 100%;
        text-align: left;
    }
    .faq-question i { color: var(--text-muted); transition: var(--transition); font-size: 0.85rem; }
    .faq-question.active i { transform: rotate(180deg); color: var(--accent); }
    .faq-answer {
        padding: 0 24px 20px;
        font-size: 0.92rem;
        color: var(--text-muted);
        line-height: 1.7;
        display: none;
    }
    .faq-answer.open { display: block; }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
        border-radius: var(--radius-lg);
        padding: 64px 48px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(ellipse at 70% 30%, rgba(233,69,96,0.1) 0%, transparent 70%);
        pointer-events: none;
    }
    .cta-section h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); margin-bottom: 16px; }
    .cta-section p { max-width: 560px; margin: 0 auto 32px; color: rgba(255,255,255,0.6); }
    .cta-section .btn { position: relative; z-index: 2; }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--primary-dark);
        border-top: 1px solid var(--border-color);
        padding: 48px 0 32px;
        margin-top: 40px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }
    .footer-brand .nav-logo { margin-bottom: 16px; }
    .footer-brand p { font-size: 0.9rem; color: var(--text-muted); max-width: 360px; }
    .footer-col h4 { font-size: 0.95rem; margin-bottom: 18px; color: var(--text-light); }
    .footer-col a {
        display: block;
        padding: 4px 0;
        font-size: 0.88rem;
        color: var(--text-muted);
    }
    .footer-col a:hover { color: var(--accent-light); padding-left: 4px; }
    .footer-bottom {
        border-top: 1px solid var(--border-color);
        padding-top: 24px;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        font-size: 0.82rem;
        color: var(--text-muted);
    }
    .footer-bottom a { color: var(--text-muted); }
    .footer-bottom a:hover { color: var(--accent-light); }
    .footer-social { display: flex; gap: 12px; }
    .footer-social a {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: rgba(255,255,255,0.05);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-muted);
        font-size: 1rem;
        transition: var(--transition);
    }
    .footer-social a:hover {
        background: var(--accent);
        color: #fff;
        transform: translateY(-2px);
    }

    /* ===== 空状态 ===== */
    .empty-state {
        text-align: center;
        padding: 48px 24px;
        color: var(--text-muted);
        font-size: 1rem;
        background: var(--bg-card);
        border-radius: var(--radius-sm);
        border: 1px dashed var(--border-color);
    }
    .empty-state i { font-size: 2rem; display: block; margin-bottom: 16px; opacity: 0.4; }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .grid-4 { grid-template-columns: repeat(2, 1fr); }
        .steps { grid-template-columns: repeat(2, 1fr); }
        .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    }
    @media (max-width: 768px) {
        :root { --section-spacing: 60px; --nav-height: 64px; }
        .site-header { top: 12px; width: calc(100% - 24px); border-radius: 40px; }
        .nav-links {
            display: none;
            position: absolute;
            top: calc(var(--nav-height) + 8px);
            left: 8px;
            right: 8px;
            background: rgba(18, 18, 30, 0.98);
            backdrop-filter: blur(24px);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            flex-direction: column;
            padding: 12px;
            gap: 4px;
            box-shadow: var(--shadow-lg);
        }
        .nav-links.open { display: flex; }
        .nav-links a { padding: 12px 20px; width: 100%; border-radius: var(--radius-sm); }
        .nav-toggle { display: flex; }
        .grid-2, .grid-3 { grid-template-columns: 1fr; }
        .grid-4 { grid-template-columns: 1fr; }
        .hero { min-height: 80vh; padding: 100px 20px 60px; }
        .hero p { font-size: 1rem; }
        .hero-stats { gap: 24px; }
        .hero-stat-item .num { font-size: 1.6rem; }
        .steps { grid-template-columns: 1fr; gap: 16px; }
        .news-item { flex-direction: column; gap: 8px; padding: 16px; }
        .news-item .date { display: flex; gap: 6px; width: auto; }
        .news-item .date .day { display: inline; font-size: 1rem; }
        .cta-section { padding: 40px 24px; border-radius: var(--radius-md); }
        .footer-grid { grid-template-columns: 1fr; gap: 24px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .section-title { margin-bottom: 36px; }
        .card { padding: 24px 20px; }
        .feature-card img { height: 160px; }
    }
    @media (max-width: 520px) {
        .site-header { top: 8px; border-radius: 32px; }
        .nav-logo { font-size: 1.1rem; }
        .nav-logo i { font-size: 1.2rem; }
        .hero h1 { font-size: 1.8rem; }
        .hero-actions { flex-direction: column; align-items: stretch; }
        .hero-actions .btn { justify-content: center; }
        .hero-stats { flex-direction: column; gap: 16px; }
        .faq-question { font-size: 0.92rem; padding: 16px 18px; }
        .faq-answer { padding: 0 18px 16px; }
        .container { padding: 0 16px; }
    }

    /* ===== 额外组件 ===== */
    .tag-sm {
        display: inline-block;
        padding: 2px 12px;
        border-radius: 40px;
        font-size: 0.72rem;
        font-weight: 600;
        background: rgba(233,69,96,0.1);
        color: var(--accent-light);
    }
    .gap-8 { gap: 8px; }
    .mt-8 { margin-top: 8px; }
    .mt-16 { margin-top: 16px; }
    .mt-24 { margin-top: 24px; }
    .mt-32 { margin-top: 32px; }
    .mt-40 { margin-top: 40px; }
    .text-center { text-align: center; }
    .flex-center { display: flex; align-items: center; justify-content: center; }
    .w-full { width: 100%; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a5e;
            --primary-light: #2a4a8e;
            --primary-dark: #0f1a3a;
            --accent: #f5c842;
            --accent-light: #fadd7a;
            --accent-dark: #d4a830;
            --bg-body: #f8f6f2;
            --bg-card: #ffffff;
            --bg-soft: #eeebe6;
            --bg-dark: #0b1120;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-weak: #8a8a9a;
            --text-light: #f0ede8;
            --border-color: #e0dcd6;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.10);
            --shadow-glow: 0 0 40px rgba(245, 200, 66, 0.15);
            --transition: 0.3s ease;
            --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

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

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 840px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Button ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            line-height: 1.4;
            background: var(--primary);
            color: var(--text-light);
        }
        .btn:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: var(--text-light);
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .btn-accent:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-light);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(26, 42, 94, 0.08);
            color: var(--primary);
            letter-spacing: 0.3px;
        }
        .badge-accent {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .badge-soft {
            background: var(--bg-soft);
            color: var(--text-secondary);
        }

        /* ===== Card ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all 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;
            display: block;
        }
        .card-body {
            padding: 20px 24px 24px;
        }
        .card-body h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }
        .card-body p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.6;
        }
        .card-footer {
            padding: 16px 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-soft);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 12px;
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 34px;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 640px;
            margin: 0 auto;
        }
        .section-header .badge {
            margin-bottom: 16px;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 16px auto 20px;
        }

        /* ===== Grid ===== */
        .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;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(224, 220, 214, 0.5);
            transition: background var(--transition);
        }
        .nav-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-dark);
            text-decoration: none;
            letter-spacing: -0.3px;
        }
        .nav-logo i {
            color: var(--accent);
            font-size: 26px;
        }
        .nav-logo span {
            color: var(--primary-dark);
        }
        .nav-logo:hover span {
            color: var(--primary-light);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 15px;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(26, 42, 94, 0.06);
        }
        .nav-links a.active {
            color: var(--text-light);
            background: var(--primary);
        }
        .nav-links a.active:hover {
            background: var(--primary-light);
            color: var(--text-light);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            font-size: 26px;
            color: var(--primary-dark);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(26, 42, 94, 0.06);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center/cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 80px;
            background: var(--bg-body);
            border-radius: 50% 50% 0 0 / 100% 100% 0 0;
            transform: scaleY(0.4);
            transform-origin: bottom;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            color: var(--text-light);
        }
        .page-hero h1 {
            font-size: 44px;
            color: var(--text-light);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero p {
            font-size: 18px;
            color: rgba(240, 237, 232, 0.85);
            max-width: 640px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .page-hero .badge {
            background: rgba(245, 200, 66, 0.2);
            color: var(--accent);
            font-size: 14px;
            padding: 6px 20px;
            margin-bottom: 20px;
        }
        .page-hero .btn {
            margin-top: 8px;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-item .num {
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            display: block;
        }
        .hero-stat-item .label {
            font-size: 14px;
            color: rgba(240, 237, 232, 0.7);
            margin-top: 4px;
        }

        /* ===== Category Intro ===== */
        .cat-intro {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 48px 52px;
            margin-top: -40px;
            position: relative;
            z-index: 3;
            box-shadow: var(--shadow-lg);
        }
        .cat-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .cat-intro-text h2 {
            font-size: 28px;
            margin-bottom: 16px;
        }
        .cat-intro-text p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .cat-intro-text .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 20px;
        }
        .cat-intro-img img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        /* ===== Content Cards ===== */
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .content-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .content-card .thumb {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .content-card .meta {
            padding: 16px 20px 0;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .content-card .meta .badge {
            font-size: 11px;
            padding: 2px 12px;
        }
        .content-card h3 {
            padding: 8px 20px 0;
            font-size: 18px;
            line-height: 1.4;
        }
        .content-card h3 a {
            color: var(--primary-dark);
        }
        .content-card h3 a:hover {
            color: var(--primary-light);
        }
        .content-card p {
            padding: 8px 20px 16px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.6;
            flex: 1;
        }
        .content-card .card-footer {
            padding: 14px 20px;
            border-top: 1px solid var(--border-color);
            background: transparent;
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-weak);
        }

        /* ===== Tools / Equipment ===== */
        .tools-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .tool-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border-left: 4px solid var(--accent);
        }
        .tool-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .tool-item .icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(245, 200, 66, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent-dark);
        }
        .tool-item h4 {
            font-size: 17px;
            margin-bottom: 6px;
        }
        .tool-item p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 20px 28px;
            font-weight: 600;
            font-size: 16px;
            color: var(--primary-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(26, 42, 94, 0.03);
        }
        .faq-question i {
            color: var(--accent-dark);
            transition: transform var(--transition);
            font-size: 18px;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 28px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center/cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 36px;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(240, 237, 232, 0.8);
            font-size: 18px;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn {
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 17px;
            padding: 16px 40px;
        }
        .cta-section .btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            padding: 20px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-weak);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text-secondary);
        }
        .breadcrumb i {
            font-size: 12px;
            color: var(--text-weak);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(240, 237, 232, 0.75);
            padding: 60px 0 30px;
            font-size: 15px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .nav-logo {
            margin-bottom: 16px;
            display: inline-flex;
        }
        .site-footer .footer-brand .nav-logo span {
            color: var(--text-light);
        }
        .site-footer .footer-brand p {
            line-height: 1.7;
            color: rgba(240, 237, 232, 0.65);
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            font-size: 16px;
            color: var(--text-light);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .site-footer .footer-col a {
            display: block;
            color: rgba(240, 237, 232, 0.6);
            padding: 4px 0;
            font-size: 14px;
            transition: color var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(240, 237, 232, 0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: rgba(240, 237, 232, 0.5);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 16px;
        }
        .site-footer .footer-social a {
            color: rgba(240, 237, 232, 0.5);
            font-size: 20px;
            transition: color var(--transition);
        }
        .site-footer .footer-social a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-3,
            .content-grid {
                grid-template-columns: 1fr 1fr;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .cat-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cat-intro {
                padding: 32px 28px;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-hero h1 {
                font-size: 36px;
            }
            .section-header h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s ease;
                box-shadow: var(--shadow-md);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                width: 100%;
                text-align: center;
                padding: 12px 20px;
                font-size: 16px;
            }
            .nav-toggle {
                display: block;
            }
            .grid-2,
            .grid-3,
            .content-grid,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat-item .num {
                font-size: 26px;
            }
            .page-hero {
                padding: 120px 0 60px;
                min-height: auto;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .cat-intro {
                padding: 24px 20px;
                margin-top: -20px;
            }
            .tool-item {
                flex-direction: column;
                padding: 20px 24px;
            }
            .faq-question {
                padding: 16px 20px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 20px 16px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .breadcrumb {
                font-size: 13px;
                padding: 16px 0 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .btn-lg {
                padding: 12px 28px;
                font-size: 15px;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat-item .num {
                font-size: 22px;
            }
            .cat-intro-text h2 {
                font-size: 22px;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo i {
                font-size: 22px;
            }
        }

/* roulang page: article */
/* === 设计变量 === */
:root {
    --primary: #1a1a3e;
    --primary-light: #2a2a5e;
    --primary-dark: #0f0f2e;
    --accent: #f0c040;
    --accent-light: #f8d860;
    --accent-dark: #d4a830;
    --bg: #f8f7f4;
    --bg-alt: #eeedea;
    --bg-card: #ffffff;
    --text: #1a1a2e;
    --text-light: #6b6b7b;
    --text-lighter: #9a9aab;
    --border: #e0dfdc;
    --border-light: #f0efec;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.14);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
    --font: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
    --max-width: 1200px;
    --header-height: 72px;
}

/* === Reset / 基础 === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;transition:var(--transition);}
img{max-width:100%;height:auto;display:block;}
ul,ol{list-style:none;}
input,button,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none;}
button{cursor:pointer;}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0;}

/* === 导航 === */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(26,26,62,0.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,0.06);height:var(--header-height);transition:var(--transition);}
.nav-container{max-width:var(--max-width);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;justify-content:space-between;}
.nav-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:1.35rem;font-weight:700;letter-spacing:0.5px;}
.nav-logo i{color:var(--accent);font-size:1.5rem;}
.nav-logo span{background:linear-gradient(135deg,#fff 60%,var(--accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{padding:8px 20px;border-radius:50px;color:rgba(255,255,255,0.75);font-size:0.95rem;font-weight:500;transition:var(--transition);position:relative;}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,0.12);}
.nav-links a.active{background:var(--accent);color:var(--primary);font-weight:600;}
.nav-toggle{display:none;color:#fff;font-size:1.4rem;padding:8px;border-radius:8px;background:rgba(255,255,255,0.08);width:44px;height:44px;align-items:center;justify-content:center;}

/* === 文章 Banner === */
.article-banner{position:relative;padding:140px 0 80px;margin-top:0;background:var(--primary-dark);overflow:hidden;min-height:380px;display:flex;align-items:center;}
.article-banner-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:0.3;z-index:0;}
.article-banner .overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,15,46,0.60) 0%,rgba(26,26,62,0.85) 100%);z-index:1;}
.article-banner .container{position:relative;z-index:2;}
.article-breadcrumb{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,0.55);font-size:0.9rem;margin-bottom:20px;flex-wrap:wrap;}
.article-breadcrumb a{color:rgba(255,255,255,0.65);transition:var(--transition);}
.article-breadcrumb a:hover{color:var(--accent);}
.article-breadcrumb span{color:rgba(255,255,255,0.4);}
.article-category{display:inline-block;background:var(--accent);color:var(--primary);padding:4px 16px;border-radius:50px;font-size:0.82rem;font-weight:600;letter-spacing:0.3px;margin-bottom:16px;}
.article-title{font-size:2.4rem;font-weight:800;color:#fff;line-height:1.3;max-width:880px;margin-bottom:16px;letter-spacing:-0.3px;}
.article-meta{display:flex;align-items:center;gap:24px;color:rgba(255,255,255,0.6);font-size:0.92rem;flex-wrap:wrap;}
.article-meta i{margin-right:6px;color:var(--accent);}
.article-meta span{display:flex;align-items:center;}

/* === 文章正文 === */
.article-main{padding:60px 0 40px;}
.article-layout{display:grid;grid-template-columns:1fr 280px;gap:48px;align-items:start;}
.article-content{background:var(--bg-card);border-radius:var(--radius-lg);padding:48px;box-shadow:var(--shadow);}
.article-body{font-size:1.08rem;line-height:1.9;color:var(--text);}
.article-body p{margin-bottom:1.6em;}
.article-body h2{font-size:1.6rem;font-weight:700;margin-top:2em;margin-bottom:0.8em;color:var(--primary);}
.article-body h3{font-size:1.25rem;font-weight:600;margin-top:1.6em;margin-bottom:0.6em;color:var(--primary);}
.article-body ul,.article-body ol{padding-left:1.6em;margin-bottom:1.6em;}
.article-body li{margin-bottom:0.4em;}
.article-body ul li{list-style:disc;}
.article-body ol li{list-style:decimal;}
.article-body blockquote{border-left:4px solid var(--accent);padding:16px 24px;margin:1.6em 0;background:var(--bg-alt);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-light);font-style:italic;}
.article-body img{border-radius:var(--radius-sm);margin:1.6em auto;box-shadow:var(--shadow);}
.article-body a{color:var(--primary-light);border-bottom:2px solid var(--accent);font-weight:500;}
.article-body a:hover{color:var(--accent-dark);}
.article-body code{background:var(--bg-alt);padding:2px 10px;border-radius:4px;font-size:0.9em;color:var(--primary);}
.article-body pre{background:var(--primary);color:#f0f0f0;padding:24px;border-radius:var(--radius-sm);overflow-x:auto;margin:1.6em 0;font-size:0.92rem;line-height:1.6;}
.article-body pre code{background:transparent;color:inherit;padding:0;}

/* === 文章底部信息 === */
.article-footer-bar{padding:32px 0;border-top:1px solid var(--border-light);margin-top:40px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;}
.article-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.article-tags .tag-label{color:var(--text-light);font-size:0.9rem;}
.article-tags .tag{display:inline-block;background:var(--bg-alt);padding:4px 14px;border-radius:50px;font-size:0.82rem;color:var(--text-light);transition:var(--transition);}
.article-tags .tag:hover{background:var(--accent);color:var(--primary);}
.article-share{display:flex;align-items:center;gap:8px;}
.article-share span{color:var(--text-light);font-size:0.9rem;margin-right:4px;}
.article-share a{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--bg-alt);color:var(--text-light);transition:var(--transition);font-size:1rem;}
.article-share a:hover{background:var(--accent);color:var(--primary);transform:translateY(-2px);}

/* === 侧边栏 === */
.article-sidebar{position:sticky;top:calc(var(--header-height) + 24px);}
.sidebar-card{background:var(--bg-card);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);margin-bottom:24px;}
.sidebar-card h3{font-size:1.1rem;font-weight:700;color:var(--primary);margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--accent);}
.sidebar-card p{color:var(--text-light);font-size:0.92rem;line-height:1.7;}
.sidebar-list li{padding:10px 0;border-bottom:1px solid var(--border-light);}
.sidebar-list li:last-child{border-bottom:none;}
.sidebar-list a{display:flex;align-items:flex-start;gap:12px;color:var(--text);transition:var(--transition);}
.sidebar-list a:hover{color:var(--primary-light);}
.sidebar-list a i{color:var(--accent);margin-top:3px;font-size:0.85rem;}
.sidebar-list .s-title{font-size:0.92rem;font-weight:500;line-height:1.4;}
.sidebar-cta{text-align:center;}
.sidebar-cta .btn{margin-top:12px;}

/* === 推荐文章 === */
.related-section{padding:60px 0;background:var(--bg-alt);}
.related-section .section-title{text-align:center;font-size:1.8rem;font-weight:800;color:var(--primary);margin-bottom:8px;}
.related-section .section-sub{text-align:center;color:var(--text-light);margin-bottom:40px;font-size:1rem;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
.related-card-img{height:200px;overflow:hidden;position:relative;}
.related-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease;}
.related-card:hover .related-card-img img{transform:scale(1.06);}
.related-card-img .cat-tag{position:absolute;top:12px;left:12px;background:var(--accent);color:var(--primary);padding:2px 12px;border-radius:50px;font-size:0.75rem;font-weight:600;}
.related-card-body{padding:20px 24px 24px;}
.related-card-body h4{font-size:1.08rem;font-weight:600;color:var(--text);margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-card-body p{font-size:0.88rem;color:var(--text-light);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-card-body .meta{display:flex;align-items:center;gap:16px;margin-top:12px;font-size:0.82rem;color:var(--text-lighter);}

/* === 按钮 === */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 32px;border-radius:50px;font-size:0.95rem;font-weight:600;transition:var(--transition);border:none;cursor:pointer;}
.btn-primary{background:var(--accent);color:var(--primary);box-shadow:0 4px 14px rgba(240,192,64,0.35);}
.btn-primary:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(240,192,64,0.45);}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,0.3);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);}
.btn-sm{padding:8px 20px;font-size:0.85rem;}

/* === 页脚 === */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,0.7);padding:60px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.06);}
.footer-brand .nav-logo{margin-bottom:16px;display:inline-flex;}
.footer-brand p{font-size:0.92rem;line-height:1.7;max-width:360px;color:rgba(255,255,255,0.55);}
.footer-col h4{color:#fff;font-size:1rem;font-weight:600;margin-bottom:18px;letter-spacing:0.3px;}
.footer-col a{display:block;color:rgba(255,255,255,0.55);font-size:0.9rem;padding:5px 0;transition:var(--transition);}
.footer-col a:hover{color:var(--accent);padding-left:4px;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;padding:24px 0;flex-wrap:wrap;gap:16px;}
.footer-bottom span{font-size:0.85rem;color:rgba(255,255,255,0.4);}
.footer-social{display:flex;gap:12px;}
.footer-social a{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,0.06);color:rgba(255,255,255,0.5);transition:var(--transition);font-size:1.1rem;}
.footer-social a:hover{background:var(--accent);color:var(--primary);transform:translateY(-2px);}

/* === 内容未找到 === */
.not-found-wrap{text-align:center;padding:80px 20px;}
.not-found-wrap i{font-size:4rem;color:var(--accent);margin-bottom:24px;display:block;}
.not-found-wrap h2{font-size:1.8rem;font-weight:700;color:var(--primary);margin-bottom:12px;}
.not-found-wrap p{color:var(--text-light);font-size:1.05rem;margin-bottom:28px;}
.not-found-wrap .btn{margin-top:8px;}

/* === 响应式 === */
@media(max-width:1024px){
    .article-layout{grid-template-columns:1fr;}
    .article-sidebar{display:grid;grid-template-columns:1fr 1fr;gap:24px;position:static;}
    .related-grid{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px;}
}
@media(max-width:768px){
    .nav-links{position:fixed;top:var(--header-height);left:0;right:0;background:rgba(26,26,62,0.98);backdrop-filter:blur(16px);flex-direction:column;padding:16px 24px 24px;gap:4px;transform:translateY(-120%);opacity:0;transition:var(--transition);border-bottom:1px solid rgba(255,255,255,0.06);border-radius:0 0 var(--radius) var(--radius);}
    .nav-links.open{transform:translateY(0);opacity:1;}
    .nav-links a{width:100%;padding:12px 20px;border-radius:8px;}
    .nav-toggle{display:flex;}
    .article-title{font-size:1.6rem;}
    .article-content{padding:28px 24px;}
    .article-body{font-size:1rem;}
    .article-banner{padding:120px 0 56px;min-height:280px;}
    .related-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .footer-brand{grid-column:1/-1;}
    .article-sidebar{grid-template-columns:1fr;}
    .article-footer-bar{flex-direction:column;align-items:flex-start;}
}
@media(max-width:520px){
    .container{padding:0 16px;}
    .article-title{font-size:1.35rem;}
    .article-content{padding:20px 16px;border-radius:var(--radius);}
    .article-meta{gap:12px;font-size:0.82rem;}
    .article-banner{padding:100px 0 40px;min-height:220px;}
    .article-main{padding:32px 0 24px;}
    .related-section{padding:40px 0;}
    .related-section .section-title{font-size:1.4rem;}
    .footer-grid{grid-template-columns:1fr;gap:24px;}
    .footer-bottom{flex-direction:column;text-align:center;}
    .sidebar-card{padding:20px;}
}