/* roulang page: index */
/* ===== 设计变量 ===== */
    :root {
        --color-primary: #0b1d31;
        --color-primary-light: #132d4a;
        --color-secondary: #d4a843;
        --color-secondary-light: #e8c56b;
        --color-accent: #e8491d;
        --color-accent-light: #f05a2e;
        --color-bg: #f5f7fa;
        --color-bg-alt: #eef0f5;
        --color-card: #ffffff;
        --color-text: #1a1a2e;
        --color-text-soft: #4a5568;
        --color-text-muted: #8a95a8;
        --color-border: #e2e6ed;
        --color-border-light: #f0f2f5;
        --color-nav-bg: #081420;
        --color-nav-text: #c8d0dc;
        --color-nav-hover: #ffffff;
        --color-nav-active: var(--color-secondary);
        --color-success: #2d8a4e;
        --radius-sm: 6px;
        --radius-md: 12px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
        --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
        --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
        --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        --nav-width: 260px;
        --header-height: 64px;
        --max-width: 1200px;
    }

    /* ===== 基础 Reset ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.6;
        color: var(--color-text);
        background: var(--color-bg);
        min-height: 100vh;
        display: flex;
    }
    a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
    a:hover { color: var(--color-accent-light); }
    a:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 2px; border-radius: 4px; }
    img { max-width: 100%; height: auto; display: block; }
    button, input, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; border: none; background: none; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-primary); }
    h1 { font-size: 2.8rem; letter-spacing: -0.02em; }
    h2 { font-size: 2rem; letter-spacing: -0.01em; }
    h3 { font-size: 1.4rem; }
    h4 { font-size: 1.15rem; }
    p { margin-bottom: 0.8rem; color: var(--color-text-soft); }
    .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
    .section-pad { padding: 80px 0; }
    .section-pad-sm { padding: 48px 0; }

    /* ===== 左侧竖向导航 ===== */
    .side-nav {
        position: fixed;
        left: 0;
        top: 0;
        width: var(--nav-width);
        height: 100vh;
        background: var(--color-nav-bg);
        color: var(--color-nav-text);
        display: flex;
        flex-direction: column;
        z-index: 1000;
        overflow-y: auto;
        transition: transform var(--transition);
        border-right: 1px solid rgba(255,255,255,0.04);
    }
    .side-nav .logo-area {
        padding: 32px 24px 20px;
        border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .side-nav .logo {
        font-size: 1.5rem;
        font-weight: 800;
        color: #fff;
        letter-spacing: 0.02em;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .side-nav .logo i {
        color: var(--color-secondary);
        font-size: 1.6rem;
    }
    .side-nav .logo-sub {
        font-size: 0.75rem;
        color: var(--color-text-muted);
        margin-top: 4px;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        opacity: 0.6;
    }
    .side-nav .nav-links {
        padding: 20px 0;
        flex: 1;
    }
    .side-nav .nav-links li {
        margin: 2px 12px;
    }
    .side-nav .nav-links a {
        display: flex;
        align-items: center;
        gap: 14px;
        padding: 12px 16px;
        border-radius: var(--radius-md);
        color: var(--color-nav-text);
        font-size: 0.95rem;
        font-weight: 500;
        transition: all var(--transition);
        position: relative;
    }
    .side-nav .nav-links a i {
        width: 20px;
        text-align: center;
        font-size: 1.05rem;
        color: var(--color-text-muted);
        transition: color var(--transition);
    }
    .side-nav .nav-links a:hover {
        background: rgba(255,255,255,0.07);
        color: var(--color-nav-hover);
    }
    .side-nav .nav-links a:hover i {
        color: var(--color-secondary);
    }
    .side-nav .nav-links a.active {
        background: rgba(212, 168, 67, 0.12);
        color: var(--color-nav-active);
        font-weight: 600;
    }
    .side-nav .nav-links a.active i {
        color: var(--color-secondary);
    }
    .side-nav .nav-links a.active::before {
        content: '';
        position: absolute;
        left: -12px;
        top: 50%;
        transform: translateY(-50%);
        width: 4px;
        height: 28px;
        background: var(--color-secondary);
        border-radius: 0 4px 4px 0;
    }
    .side-nav .nav-footer {
        padding: 20px 24px;
        border-top: 1px solid rgba(255,255,255,0.06);
        font-size: 0.78rem;
        color: var(--color-text-muted);
        line-height: 1.5;
    }

    /* ===== 主内容区 ===== */
    .main-content {
        margin-left: var(--nav-width);
        width: calc(100% - var(--nav-width));
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    /* ===== 移动端顶部导航 ===== */
    .mobile-header {
        display: none;
        position: sticky;
        top: 0;
        z-index: 999;
        background: var(--color-nav-bg);
        padding: 0 20px;
        height: var(--header-height);
        align-items: center;
        justify-content: space-between;
        border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .mobile-header .logo {
        font-size: 1.2rem;
        font-weight: 800;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .mobile-header .logo i { color: var(--color-secondary); }
    .mobile-header .hamburger {
        width: 40px;
        height: 40px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        background: rgba(255,255,255,0.06);
        border-radius: var(--radius-sm);
        transition: background var(--transition);
    }
    .mobile-header .hamburger:hover { background: rgba(255,255,255,0.12); }
    .mobile-header .hamburger span {
        display: block;
        width: 20px;
        height: 2px;
        background: #fff;
        border-radius: 2px;
        transition: all var(--transition);
    }
    .mobile-header .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .mobile-header .hamburger.active span:nth-child(2) { opacity: 0; }
    .mobile-header .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    /* ===== 移动端菜单抽屉 ===== */
    .mobile-menu {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-nav-bg);
        z-index: 998;
        padding: 16px 20px 40px;
        overflow-y: auto;
        transform: translateY(-12px);
        opacity: 0;
        transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        pointer-events: none;
    }
    .mobile-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    .mobile-menu .nav-links { padding: 0; }
    .mobile-menu .nav-links li { margin: 2px 0; }
    .mobile-menu .nav-links a {
        padding: 14px 16px;
        font-size: 1rem;
        color: var(--color-nav-text);
        display: flex;
        align-items: center;
        gap: 14px;
        border-radius: var(--radius-md);
        transition: all var(--transition);
    }
    .mobile-menu .nav-links a i { width: 20px; color: var(--color-text-muted); }
    .mobile-menu .nav-links a:hover { background: rgba(255,255,255,0.07); color: #fff; }
    .mobile-menu .nav-links a.active { color: var(--color-secondary); background: rgba(212,168,67,0.1); }
    .mobile-menu .nav-links a.active i { color: var(--color-secondary); }

    /* ===== Hero 首屏 ===== */
    .hero {
        background: linear-gradient(135deg, #0b1d31 0%, #132d4a 50%, #1a3a5c 100%);
        color: #fff;
        padding: 100px 0 80px;
        position: relative;
        overflow: hidden;
    }
    .hero::after {
        content: '';
        position: absolute;
        right: -10%;
        top: -20%;
        width: 60%;
        height: 140%;
        background: radial-gradient(ellipse at center, rgba(212,168,67,0.06) 0%, transparent 70%);
        pointer-events: none;
    }
    .hero .container { position: relative; z-index: 1; }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(212,168,67,0.15);
        color: var(--color-secondary);
        padding: 6px 18px;
        border-radius: 50px;
        font-size: 0.82rem;
        font-weight: 600;
        letter-spacing: 0.04em;
        margin-bottom: 20px;
        border: 1px solid rgba(212,168,67,0.2);
    }
    .hero h1 {
        color: #fff;
        font-size: 3.2rem;
        line-height: 1.2;
        max-width: 720px;
        margin-bottom: 20px;
    }
    .hero h1 span { color: var(--color-secondary); }
    .hero p {
        color: rgba(255,255,255,0.7);
        font-size: 1.15rem;
        max-width: 600px;
        margin-bottom: 36px;
        line-height: 1.7;
    }
    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        align-items: center;
    }

    /* ===== 按钮 ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 14px 32px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 0.95rem;
        transition: all var(--transition);
        border: 2px solid transparent;
        text-align: center;
        justify-content: center;
        line-height: 1.2;
    }
    .btn-primary {
        background: var(--color-accent);
        color: #fff;
        border-color: var(--color-accent);
    }
    .btn-primary:hover {
        background: var(--color-accent-light);
        border-color: var(--color-accent-light);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 8px 30px rgba(232,73,29,0.3);
    }
    .btn-secondary {
        background: transparent;
        color: #fff;
        border-color: rgba(255,255,255,0.25);
    }
    .btn-secondary:hover {
        background: rgba(255,255,255,0.08);
        border-color: rgba(255,255,255,0.4);
        color: #fff;
        transform: translateY(-2px);
    }
    .btn-outline {
        background: transparent;
        color: var(--color-accent);
        border-color: var(--color-accent);
    }
    .btn-outline:hover {
        background: var(--color-accent);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 8px 30px rgba(232,73,29,0.2);
    }
    .btn-sm { padding: 10px 22px; font-size: 0.85rem; }
    .btn-lg { padding: 16px 40px; font-size: 1.05rem; }

    /* ===== 板块标题 ===== */
    .section-label {
        display: inline-block;
        font-size: 0.8rem;
        font-weight: 600;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--color-secondary);
        margin-bottom: 8px;
    }
    .section-title {
        font-size: 2rem;
        margin-bottom: 12px;
        color: var(--color-primary);
    }
    .section-sub {
        font-size: 1.05rem;
        color: var(--color-text-soft);
        max-width: 640px;
        margin-bottom: 40px;
    }

    /* ===== 卡片 ===== */
    .card {
        background: var(--color-card);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        padding: 28px 24px;
        transition: all var(--transition);
        border: 1px solid var(--color-border-light);
        height: 100%;
    }
    .card:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-4px);
        border-color: var(--color-border);
    }
    .card-icon {
        width: 52px;
        height: 52px;
        border-radius: var(--radius-md);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        background: rgba(212,168,67,0.1);
        color: var(--color-secondary);
        margin-bottom: 16px;
    }
    .card h3 { font-size: 1.15rem; margin-bottom: 8px; }
    .card p { font-size: 0.92rem; color: var(--color-text-soft); margin-bottom: 0; }
    .card .card-tag {
        display: inline-block;
        font-size: 0.72rem;
        font-weight: 600;
        padding: 3px 12px;
        border-radius: 50px;
        background: var(--color-bg-alt);
        color: var(--color-text-soft);
        margin-top: 12px;
    }

    /* ===== 特色卡片 (分类入口) ===== */
    .feature-card {
        background: var(--color-card);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
        padding: 36px 28px;
        transition: all var(--transition);
        border: 1px solid var(--color-border-light);
        height: 100%;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--color-secondary), var(--color-accent));
        opacity: 0;
        transition: opacity var(--transition);
    }
    .feature-card:hover::before { opacity: 1; }
    .feature-card:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-6px);
        border-color: transparent;
    }
    .feature-card .fc-icon {
        width: 68px;
        height: 68px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.8rem;
        margin: 0 auto 18px;
        background: linear-gradient(135deg, rgba(212,168,67,0.12), rgba(232,73,29,0.08));
        color: var(--color-secondary);
        transition: all var(--transition);
    }
    .feature-card:hover .fc-icon {
        background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
        color: #fff;
        transform: scale(1.05);
    }
    .feature-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
    .feature-card p { font-size: 0.9rem; margin-bottom: 16px; color: var(--color-text-muted); }
    .feature-card .btn { margin-top: 8px; }

    /* ===== 统计数字 ===== */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .stat-item {
        text-align: center;
        padding: 32px 16px;
        background: var(--color-card);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border-light);
        transition: all var(--transition);
    }
    .stat-item:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-3px);
    }
    .stat-number {
        font-size: 2.6rem;
        font-weight: 800;
        color: var(--color-primary);
        line-height: 1.1;
        margin-bottom: 4px;
    }
    .stat-number span { color: var(--color-secondary); }
    .stat-label {
        font-size: 0.88rem;
        color: var(--color-text-muted);
        font-weight: 500;
    }

    /* ===== 流程步骤 ===== */
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        counter-reset: step;
    }
    .step-card {
        background: var(--color-card);
        border-radius: var(--radius-md);
        padding: 32px 24px;
        text-align: center;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border-light);
        transition: all var(--transition);
        position: relative;
    }
    .step-card:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-3px);
    }
    .step-number {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        background: var(--color-primary);
        color: #fff;
        font-size: 1.2rem;
        font-weight: 700;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 16px;
        transition: all var(--transition);
    }
    .step-card:hover .step-number {
        background: var(--color-secondary);
        transform: scale(1.1);
    }
    .step-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
    .step-card p { font-size: 0.88rem; color: var(--color-text-soft); margin-bottom: 0; }

    /* ===== 内容列表 (CMS) ===== */
    .content-list { display: flex; flex-direction: column; gap: 16px; }
    .content-item {
        background: var(--color-card);
        border-radius: var(--radius-md);
        padding: 20px 24px;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border-light);
        transition: all var(--transition);
        display: flex;
        align-items: flex-start;
        gap: 20px;
    }
    .content-item:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-2px);
        border-color: var(--color-border);
    }
    .content-item .ci-meta {
        flex-shrink: 0;
        min-width: 70px;
        text-align: center;
    }
    .content-item .ci-date {
        font-size: 0.78rem;
        color: var(--color-text-muted);
        background: var(--color-bg-alt);
        padding: 4px 12px;
        border-radius: 50px;
        display: inline-block;
    }
    .content-item .ci-category {
        display: inline-block;
        font-size: 0.7rem;
        font-weight: 600;
        color: var(--color-secondary);
        background: rgba(212,168,67,0.1);
        padding: 2px 12px;
        border-radius: 50px;
        margin-top: 4px;
    }
    .content-item .ci-body { flex: 1; min-width: 0; }
    .content-item h3 {
        font-size: 1.05rem;
        margin-bottom: 4px;
        transition: color var(--transition);
    }
    .content-item h3 a { color: var(--color-text); }
    .content-item h3 a:hover { color: var(--color-accent); }
    .content-item p {
        font-size: 0.88rem;
        color: var(--color-text-soft);
        margin-bottom: 0;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .content-empty {
        text-align: center;
        padding: 40px 20px;
        color: var(--color-text-muted);
        font-size: 1rem;
        background: var(--color-card);
        border-radius: var(--radius-md);
        border: 1px dashed var(--color-border);
    }

    /* ===== FAQ ===== */
    .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
    .faq-item {
        background: var(--color-card);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border-light);
        overflow: hidden;
        transition: all var(--transition);
    }
    .faq-item:hover { box-shadow: var(--shadow-md); }
    .faq-q {
        padding: 18px 24px;
        font-weight: 600;
        font-size: 1rem;
        color: var(--color-primary);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        cursor: pointer;
        user-select: none;
        transition: background var(--transition);
    }
    .faq-q:hover { background: rgba(212,168,67,0.04); }
    .faq-q i { color: var(--color-secondary); transition: transform var(--transition); font-size: 0.9rem; }
    .faq-item.open .faq-q i { transform: rotate(180deg); }
    .faq-a {
        padding: 0 24px 18px;
        font-size: 0.92rem;
        color: var(--color-text-soft);
        line-height: 1.7;
        display: none;
    }
    .faq-item.open .faq-a { display: block; }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(135deg, var(--color-primary) 0%, #132d4a 100%);
        color: #fff;
        text-align: center;
        padding: 80px 0;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        background: radial-gradient(ellipse at center, rgba(212,168,67,0.06) 0%, transparent 70%);
        pointer-events: none;
    }
    .cta-section .container { position: relative; z-index: 1; }
    .cta-section h2 {
        color: #fff;
        font-size: 2.2rem;
        margin-bottom: 12px;
    }
    .cta-section p {
        color: rgba(255,255,255,0.7);
        font-size: 1.05rem;
        max-width: 540px;
        margin: 0 auto 32px;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--color-primary);
        color: rgba(255,255,255,0.7);
        padding: 40px 0 32px;
        margin-top: auto;
    }
    .site-footer .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 32px;
    }
    .site-footer h4 {
        color: #fff;
        font-size: 1rem;
        margin-bottom: 14px;
    }
    .site-footer p, .site-footer a {
        font-size: 0.88rem;
        color: rgba(255,255,255,0.6);
        line-height: 1.7;
    }
    .site-footer a:hover { color: var(--color-secondary); }
    .site-footer .footer-links { display: flex; flex-direction: column; gap: 6px; }
    .site-footer .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.06);
        padding-top: 20px;
        text-align: center;
        font-size: 0.82rem;
        color: rgba(255,255,255,0.4);
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .hero h1 { font-size: 2.6rem; }
        .stats-grid { grid-template-columns: repeat(2, 1fr); }
        .steps-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
        body { flex-direction: column; }
        .side-nav { display: none; }
        .mobile-header { display: flex; }
        .mobile-menu { display: block; }
        .main-content {
            margin-left: 0;
            width: 100%;
        }
        .hero { padding: 60px 0 50px; }
        .hero h1 { font-size: 2rem; }
        .hero p { font-size: 1rem; }
        .section-pad { padding: 48px 0; }
        .section-title { font-size: 1.6rem; }
        .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
        .steps-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
        .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
        .content-item { flex-direction: column; gap: 10px; }
        .content-item .ci-meta { text-align: left; }
    }

    @media (max-width: 520px) {
        .hero h1 { font-size: 1.6rem; }
        .hero-actions { flex-direction: column; width: 100%; }
        .hero-actions .btn { width: 100%; }
        .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
        .stat-number { font-size: 2rem; }
        .steps-grid { grid-template-columns: 1fr; }
        .feature-card { padding: 24px 18px; }
        .container { padding: 0 16px; }
        .section-pad { padding: 36px 0; }
        .section-title { font-size: 1.4rem; }
        .btn-lg { padding: 14px 28px; font-size: 0.95rem; }
        .faq-q { padding: 14px 16px; font-size: 0.92rem; }
        .faq-a { padding: 0 16px 14px; }
        .cta-section { padding: 50px 0; }
        .cta-section h2 { font-size: 1.5rem; }
    }

    /* ===== 工具类 ===== */
    .text-center { text-align: center; }
    .text-secondary { color: var(--color-secondary); }
    .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; }
    .mb-24 { margin-bottom: 24px; }
    .gap-16 { gap: 16px; }
    .flex-center { display: flex; align-items: center; justify-content: center; }
    .w-full { width: 100%; }

    /* ===== Foundation 覆盖 ===== */
    .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }
    .button { transition: all var(--transition); }
    .card { box-shadow: none; border: 1px solid var(--color-border-light); }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #0a2e4a;
            --color-primary-light: #124060;
            --color-secondary: #e8a838;
            --color-secondary-hover: #d4952e;
            --color-accent: #c97d2e;
            --color-bg: #f7f5f2;
            --color-bg-card: #ffffff;
            --color-bg-dark: #0a1e2f;
            --color-text: #1a2a3a;
            --color-text-light: #5a6a7a;
            --color-text-muted: #8a9aaa;
            --color-border: #e0ddd8;
            --color-border-light: #efede8;
            --color-success: #2a9d6e;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(10, 30, 50, 0.06);
            --shadow-md: 0 8px 30px rgba(10, 30, 50, 0.08);
            --shadow-lg: 0 20px 50px rgba(10, 30, 50, 0.12);
            --transition: all 0.25s ease;
            --nav-width: 240px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
        }
        a { color: var(--color-primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--color-secondary); }
        a:focus { outline: 2px solid var(--color-secondary); outline-offset: 2px; border-radius: 2px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-primary); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 1rem; color: var(--color-text-light); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }

        /* ===== 左侧竖向导航 ===== */
        .side-nav {
            position: fixed;
            top: 0; left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            flex-direction: column;
            z-index: 1000;
            box-shadow: 2px 0 20px rgba(0,0,0,0.15);
            transition: var(--transition);
            overflow-y: auto;
        }
        .side-nav .logo-area {
            padding: 32px 20px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .side-nav .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .side-nav .logo i { color: var(--color-secondary); font-size: 1.6rem; }
        .side-nav .logo-sub {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.5);
            margin-top: 6px;
            padding-left: 36px;
            letter-spacing: 1px;
        }
        .side-nav .nav-links { flex: 1; padding: 20px 0; }
        .side-nav .nav-links ul { display: flex; flex-direction: column; gap: 2px; }
        .side-nav .nav-links li a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 24px;
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }
        .side-nav .nav-links li a:hover {
            color: #fff;
            background: rgba(255,255,255,0.06);
            border-left-color: var(--color-secondary);
        }
        .side-nav .nav-links li a.active {
            color: #fff;
            background: rgba(255,255,255,0.08);
            border-left-color: var(--color-secondary);
        }
        .side-nav .nav-links li a i { width: 20px; text-align: center; color: var(--color-secondary); font-size: 1.1rem; }
        .side-nav .nav-footer {
            padding: 16px 24px;
            font-size: 0.75rem;
            color: rgba(255,255,255,0.35);
            border-top: 1px solid rgba(255,255,255,0.06);
            letter-spacing: 0.3px;
        }

        /* ===== 右侧主内容区 ===== */
        .main-content {
            margin-left: var(--nav-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== 文章头部 ===== */
        .article-header {
            background: var(--color-primary);
            padding: 60px 0 50px;
            position: relative;
        }
        .article-header::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0; right: 0;
            height: 6px;
            background: linear-gradient(90deg, var(--color-secondary), var(--color-accent), var(--color-secondary));
        }
        .article-header .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            margin-bottom: 20px;
        }
        .article-header .breadcrumb a { color: rgba(255,255,255,0.6); }
        .article-header .breadcrumb a:hover { color: var(--color-secondary); }
        .article-header .breadcrumb i { font-size: 0.7rem; color: rgba(255,255,255,0.3); }
        .article-header h1 {
            color: #fff;
            font-size: 2.6rem;
            line-height: 1.25;
            max-width: 800px;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .article-header .meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
        }
        .article-header .meta .badge {
            background: var(--color-secondary);
            color: var(--color-primary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .article-header .meta i { margin-right: 5px; color: var(--color-secondary); }

        /* ===== 文章正文 ===== */
        .article-body {
            padding: 50px 0 60px;
            flex: 1;
        }
        .article-body .content-wrap {
            max-width: 820px;
            margin: 0 auto;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 50px 56px;
            box-shadow: var(--shadow-md);
        }
        .article-body .content-wrap .featured-image {
            margin-bottom: 36px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content-wrap .featured-image img { width: 100%; border-radius: var(--radius-md); }
        .article-body .content-wrap .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-text);
        }
        .article-body .content-wrap .article-content p {
            margin-bottom: 1.4rem;
            color: var(--color-text);
        }
        .article-body .content-wrap .article-content h2,
        .article-body .content-wrap .article-content h3 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--color-primary);
        }
        .article-body .content-wrap .article-content h2 { font-size: 1.6rem; }
        .article-body .content-wrap .article-content h3 { font-size: 1.3rem; }
        .article-body .content-wrap .article-content ul,
        .article-body .content-wrap .article-content ol {
            margin-bottom: 1.4rem;
            padding-left: 1.8rem;
        }
        .article-body .content-wrap .article-content ul { list-style: disc; }
        .article-body .content-wrap .article-content ol { list-style: decimal; }
        .article-body .content-wrap .article-content li { margin-bottom: 0.5rem; color: var(--color-text); }
        .article-body .content-wrap .article-content blockquote {
            border-left: 4px solid var(--color-secondary);
            padding: 16px 24px;
            margin: 1.5rem 0;
            background: var(--color-bg);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--color-text-light);
            font-style: italic;
        }
        .article-body .content-wrap .article-content img {
            margin: 1.5rem auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        .article-body .content-wrap .article-content a { color: var(--color-secondary-hover); text-decoration: underline; }
        .article-body .content-wrap .article-content a:hover { color: var(--color-accent); }
        .article-body .content-wrap .tags {
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--color-border-light);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .article-body .content-wrap .tags .tag {
            background: var(--color-bg);
            color: var(--color-text-light);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
        }
        .article-body .content-wrap .tags .tag:hover {
            background: var(--color-secondary);
            color: #fff;
            border-color: var(--color-secondary);
        }
        .article-body .not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-body .not-found i { font-size: 4rem; color: var(--color-text-muted); margin-bottom: 20px; display: block; }
        .article-body .not-found h2 { color: var(--color-text-light); margin-bottom: 16px; }
        .article-body .not-found p { color: var(--color-text-muted); }
        .article-body .not-found .btn-back {
            display: inline-block;
            margin-top: 20px;
            padding: 12px 32px;
            background: var(--color-secondary);
            color: var(--color-primary);
            border-radius: 30px;
            font-weight: 700;
            transition: var(--transition);
        }
        .article-body .not-found .btn-back:hover { background: var(--color-secondary-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }

        /* ===== 文章导航 ===== */
        .article-nav {
            padding: 0 0 50px;
        }
        .article-nav .container {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            gap: 20px;
        }
        .article-nav .nav-item {
            flex: 1;
            padding: 20px 24px;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--color-border-light);
        }
        .article-nav .nav-item:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--color-secondary); }
        .article-nav .nav-item .label { font-size: 0.75rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
        .article-nav .nav-item .title { font-size: 0.95rem; font-weight: 600; color: var(--color-primary); }
        .article-nav .nav-item.next { text-align: right; }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 50px 0 60px;
            background: var(--color-bg);
            border-top: 1px solid var(--color-border-light);
        }
        .related-section h3 { margin-bottom: 32px; text-align: center; font-size: 1.8rem; }
        .related-section .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-section .related-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--color-border-light);
        }
        .related-section .related-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--color-secondary); }
        .related-section .related-card .card-img {
            height: 180px;
            background: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.2);
            font-size: 2.5rem;
            overflow: hidden;
        }
        .related-section .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; }
        .related-section .related-card .card-body { padding: 20px; }
        .related-section .related-card .card-body .cat { font-size: 0.7rem; color: var(--color-secondary); font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; }
        .related-section .related-card .card-body h4 { font-size: 1.05rem; margin: 8px 0; color: var(--color-primary); }
        .related-section .related-card .card-body p { font-size: 0.85rem; color: var(--color-text-light); margin-bottom: 0; }
        .related-section .related-card .card-body .date { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 12px; display: block; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 50px 0 30px;
            margin-left: var(--nav-width);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer p { font-size: 0.88rem; color: rgba(255,255,255,0.5); line-height: 1.7; margin-bottom: 0; }
        .site-footer .footer-links { display: flex; flex-direction: column; gap: 10px; }
        .site-footer .footer-links a, .site-footer .footer-links span {
            color: rgba(255,255,255,0.5);
            font-size: 0.88rem;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-links a:hover { color: var(--color-secondary); }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.3);
            letter-spacing: 0.5px;
        }

        /* ===== 移动端导航切换 ===== */
        .nav-toggle {
            display: none;
            position: fixed;
            top: 16px; left: 16px;
            z-index: 1100;
            background: var(--color-primary);
            color: #fff;
            width: 44px; height: 44px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: var(--shadow-md);
            border: none;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .related-section .related-grid { grid-template-columns: repeat(2, 1fr); }
            .article-header h1 { font-size: 2.2rem; }
        }

        @media (max-width: 768px) {
            .nav-toggle { display: flex; }
            .side-nav {
                left: calc(-1 * var(--nav-width));
                width: 260px;
            }
            .side-nav.open { left: 0; }
            .main-content { margin-left: 0; }
            .site-footer { margin-left: 0; }
            .article-header { padding: 40px 0 35px; }
            .article-header h1 { font-size: 1.8rem; }
            .article-body .content-wrap { padding: 30px 24px; border-radius: var(--radius-md); }
            .article-body .content-wrap .article-content { font-size: 1rem; }
            .article-nav .container { flex-direction: column; }
            .article-nav .nav-item { text-align: left !important; }
            .related-section .related-grid { grid-template-columns: 1fr; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 30px; }
        }

        @media (max-width: 520px) {
            .article-header h1 { font-size: 1.5rem; }
            .article-header .meta { gap: 12px; font-size: 0.8rem; }
            .article-body .content-wrap { padding: 20px 16px; }
            .article-body .content-wrap .article-content { font-size: 0.95rem; }
            .article-header .breadcrumb { font-size: 0.75rem; }
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container { max-width: 1200px; padding: 0 24px; }
        .cell { margin-bottom: 0; }
        .button { transition: var(--transition); }
        .button:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }

        /* ===== 加载动画 ===== */
        .fade-in { animation: fadeIn 0.5s ease forwards; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1a2a3a;
            --color-primary-light: #2c4055;
            --color-secondary: #e8a832;
            --color-secondary-hover: #d4952a;
            --color-accent: #f0c15a;
            --color-bg: #f7f5f2;
            --color-bg-alt: #efece7;
            --color-bg-card: #ffffff;
            --color-text: #1e1e1e;
            --color-text-weak: #6b6b6b;
            --color-text-muted: #999;
            --color-border: #ddd8d0;
            --color-border-light: #e8e4de;
            --color-shadow: rgba(0, 0, 0, 0.06);
            --color-shadow-hover: rgba(0, 0, 0, 0.12);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px var(--color-shadow);
            --shadow-md: 0 6px 24px var(--color-shadow);
            --shadow-hover: 0 12px 36px var(--color-shadow-hover);
            --transition: 0.25s cubic-bezier(0.25, 0.1, 0.25, 1);
            --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --nav-width: 240px;
            --header-height: 64px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            display: flex;
            min-height: 100vh;
        }

        a {
            color: var(--color-primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-secondary);
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 左侧竖向导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--color-primary);
            color: #f0ede8;
            display: flex;
            flex-direction: column;
            padding: 28px 20px 20px;
            z-index: 1000;
            transition: transform var(--transition);
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.15);
        }

        .side-nav .logo-area {
            margin-bottom: 32px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .side-nav .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .side-nav .logo i {
            color: var(--color-secondary);
            font-size: 1.5rem;
        }

        .side-nav .logo-sub {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 6px;
            padding-left: 2px;
            letter-spacing: 1px;
        }

        .side-nav .nav-links ul {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav .nav-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
            text-decoration: none;
        }

        .side-nav .nav-links a i {
            width: 20px;
            text-align: center;
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.4);
            transition: color var(--transition);
        }

        .side-nav .nav-links a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .side-nav .nav-links a:hover i {
            color: var(--color-secondary);
        }

        .side-nav .nav-links a.active {
            background: rgba(232, 168, 50, 0.15);
            color: #fff;
            font-weight: 600;
        }

        .side-nav .nav-links a.active i {
            color: var(--color-secondary);
        }

        .side-nav .nav-footer {
            margin-top: auto;
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.3);
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .side-nav .nav-footer i {
            color: var(--color-secondary);
        }

        /* ===== 移动端菜单切换按钮 ===== */
        .menu-toggle {
            display: none;
            position: fixed;
            top: 12px;
            left: 16px;
            z-index: 1100;
            background: var(--color-primary);
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: background var(--transition);
        }

        .menu-toggle:hover {
            background: var(--color-primary-light);
        }

        /* ===== 主内容区 ===== */
        .main-wrapper {
            margin-left: var(--nav-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-content {
            flex: 1;
            padding: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 72px 0;
        }

        .section-alt {
            background: var(--color-bg-alt);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            color: var(--color-primary);
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-weak);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.6;
        }

        .text-center {
            text-align: center;
        }

        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Hero 分类标题区 ===== */
        .category-hero {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0f1a26 100%);
            padding: 80px 0 64px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(232, 168, 50, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 168, 50, 0.18);
            color: var(--color-secondary);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            border: 1px solid rgba(232, 168, 50, 0.2);
        }

        .category-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .category-hero h1 i {
            color: var(--color-secondary);
            margin-right: 12px;
        }

        .category-hero p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            line-height: 1.7;
        }

        .category-hero .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 36px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .category-hero .hero-stats .stat-item {
            text-align: left;
        }

        .category-hero .hero-stats .stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
        }

        .category-hero .hero-stats .stat-num i {
            color: var(--color-secondary);
            font-size: 1.4rem;
            margin-right: 6px;
        }

        .category-hero .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 2px;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }

        .card-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }

        .card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px 24px;
            transition: all var(--transition);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }

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

        .card .card-icon {
            font-size: 2rem;
            color: var(--color-secondary);
            margin-bottom: 16px;
        }

        .card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-primary);
        }

        .card p {
            font-size: 0.92rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            flex: 1;
        }

        .card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }

        .card .card-tags .tag {
            background: var(--color-bg-alt);
            padding: 3px 12px;
            border-radius: 40px;
            font-size: 0.72rem;
            color: var(--color-text-weak);
            font-weight: 500;
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }

        .badge-secondary {
            background: var(--color-secondary);
            color: #1a1a1a;
        }

        .badge-outline {
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-weak);
        }

        /* ===== 列表项 ===== */
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .guide-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--color-bg-card);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }

        .guide-list-item:hover {
            border-color: var(--color-secondary);
            box-shadow: var(--shadow-sm);
        }

        .guide-list-item .item-index {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-secondary);
            min-width: 36px;
            line-height: 1.4;
        }

        .guide-list-item .item-content {
            flex: 1;
        }

        .guide-list-item .item-content h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .guide-list-item .item-content p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.5;
        }

        .guide-list-item .item-meta {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            white-space: nowrap;
            margin-top: 2px;
        }

        /* ===== 赛事分类标签 ===== */
        .sport-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .sport-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 40px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition);
            cursor: default;
        }

        .sport-tag i {
            color: var(--color-secondary);
            font-size: 1.1rem;
        }

        .sport-tag:hover {
            border-color: var(--color-secondary);
            background: rgba(232, 168, 50, 0.06);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .sport-tag.active {
            background: var(--color-secondary);
            color: #1a1a1a;
            border-color: var(--color-secondary);
        }

        .sport-tag.active i {
            color: #1a1a1a;
        }

        /* ===== 数据/统计块 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-block {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }

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

        .stat-block .stat-icon {
            font-size: 2rem;
            color: var(--color-secondary);
            margin-bottom: 12px;
        }

        .stat-block .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .stat-block .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--color-border);
        }

        .faq-question {
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: rgba(232, 168, 50, 0.04);
        }

        .faq-question i {
            color: var(--color-secondary);
            transition: transform var(--transition);
            font-size: 0.9rem;
        }

        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

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

        /* ===== CTA ===== */
        .cta-section {
            background: var(--color-primary);
            color: #fff;
            padding: 72px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.65);
            max-width: 560px;
            margin: 0 auto 32px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-primary {
            background: var(--color-secondary);
            color: #1a1a1a;
        }

        .btn-primary:hover {
            background: var(--color-secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 168, 50, 0.3);
            color: #1a1a1a;
        }

        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.25);
            color: #fff;
        }

        .btn-outline-light:hover {
            border-color: var(--color-secondary);
            color: var(--color-secondary);
            transform: translateY(-2px);
        }

        /* ===== 图文区块 ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .feature-block .feature-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .feature-block .feature-text p {
            color: var(--color-text-weak);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .feature-block .feature-visual {
            background: var(--color-bg-alt);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-border-light);
        }

        .feature-block .feature-visual i {
            font-size: 4rem;
            color: var(--color-secondary);
            opacity: 0.6;
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 3px;
            background: var(--color-secondary);
            border-radius: 4px;
            margin: 16px 0 24px;
        }

        .divider.center {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px;
            margin-top: auto;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .site-footer h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .site-footer p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
        }

        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .site-footer .footer-links a,
        .site-footer .footer-links span {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: color var(--transition);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .site-footer .footer-links a:hover {
            color: var(--color-secondary);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
            letter-spacing: 0.3px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-width: 0px;
            }

            .side-nav {
                transform: translateX(-100%);
                width: 280px;
            }

            .side-nav.open {
                transform: translateX(0);
            }

            .menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: 0;
            }

            body.nav-open {
                overflow: hidden;
            }

            body.nav-open::after {
                content: '';
                position: fixed;
                inset: 0;
                background: rgba(0, 0, 0, 0.4);
                z-index: 999;
            }

            .category-hero {
                padding: 60px 0 48px;
            }

            .category-hero h1 {
                font-size: 2rem;
            }

            .category-hero .hero-stats {
                gap: 20px;
                flex-wrap: wrap;
            }

            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .card-grid.cols-3,
            .card-grid.cols-2 {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-block {
                padding: 20px 12px;
            }

            .stat-block .stat-number {
                font-size: 1.6rem;
            }

            .guide-list-item {
                flex-direction: column;
                gap: 8px;
                padding: 16px 18px;
            }

            .guide-list-item .item-meta {
                white-space: normal;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .sport-tags {
                gap: 8px;
            }

            .sport-tag {
                padding: 8px 16px;
                font-size: 0.82rem;
            }

            .cta-section {
                padding: 48px 0;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .btn {
                padding: 12px 28px;
                font-size: 0.9rem;
            }

            .faq-question {
                padding: 14px 18px;
                font-size: 0.92rem;
            }

            .faq-answer {
                padding: 0 18px 14px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .category-hero h1 {
                font-size: 1.6rem;
            }

            .category-hero p {
                font-size: 0.92rem;
            }

            .category-hero .hero-stats .stat-num {
                font-size: 1.4rem;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-block .stat-number {
                font-size: 1.3rem;
            }

            .section-title {
                font-size: 1.3rem;
            }

            .card {
                padding: 20px 16px;
            }

            .feature-block .feature-visual {
                padding: 24px 16px;
                min-height: 120px;
            }

            .feature-block .feature-visual i {
                font-size: 2.8rem;
            }

            .sport-tag {
                padding: 6px 12px;
                font-size: 0.75rem;
            }

            .sport-tag i {
                font-size: 0.85rem;
            }
        }

        /* ===== 移动端导航遮罩关闭 ===== */
        .nav-overlay {
            display: none;
        }

        @media (max-width: 768px) {
            .nav-overlay.active {
                display: block;
                position: fixed;
                inset: 0;
                background: rgba(0, 0, 0, 0.35);
                z-index: 998;
            }
        }

        /* ===== 基础表格 ===== */
        .table-wrap {
            overflow-x: auto;
            margin-top: 16px;
        }

        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
        }

        .table-wrap th {
            background: var(--color-primary);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }

        .table-wrap td {
            padding: 10px 16px;
            border-bottom: 1px solid var(--color-border-light);
            color: var(--color-text-weak);
        }

        .table-wrap tr:last-child td {
            border-bottom: none;
        }

        .table-wrap tr:hover td {
            background: rgba(232, 168, 50, 0.04);
        }