/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1e3a5f;
            --color-primary-light: #2a5298;
            --color-primary-dark: #0f2440;
            --color-accent: #e85d3a;
            --color-accent-light: #f07a5a;
            --color-accent-dark: #c94424;
            --color-bg: #f8f9fb;
            --color-bg-alt: #eef0f4;
            --color-bg-dark: #1a2a3a;
            --color-text: #1e293b;
            --color-text-light: #5a6a7a;
            --color-text-lighter: #8a9aaa;
            --color-border: #dce0e8;
            --color-white: #ffffff;
            --color-success: #2d9e6f;
            --color-star: #f5b342;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
            --spacing-section: 5rem;
            --spacing-element: 2.5rem;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-family);
            color: var(--color-text);
            background: var(--color-bg);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
        a:hover, a:focus { color: var(--color-accent); }
        a:focus-visible { outline: 3px solid var(--color-accent-light); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--color-primary-dark); }
        h1 { font-size: 2.8rem; margin-bottom: 1rem; }
        h2 { font-size: 2.2rem; margin-bottom: 1.5rem; }
        h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
        h4 { font-size: 1.2rem; margin-bottom: 0.5rem; }
        p { margin-bottom: 1rem; color: var(--color-text-light); }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; transition: var(--transition); }
        button:focus-visible { outline: 3px solid var(--color-accent-light); outline-offset: 2px; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 1.5rem; width: 100%; }

        /* ===== Foundation 覆盖 ===== */
        .grid-container { max-width: var(--container-max); padding-left: 1.5rem; padding-right: 1.5rem; }
        .cell { margin-bottom: 1.5rem; }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--color-white);
            box-shadow: 0 2px 16px rgba(0,0,0,0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            border-bottom: 1px solid var(--color-border);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1rem;
        }
        .site-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .site-logo span { color: var(--color-accent); }
        .site-logo:hover { color: var(--color-primary); opacity: 0.85; }
        .nav-main { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
        .nav-main a {
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--color-text);
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover { color: var(--color-primary); background: rgba(30, 58, 95, 0.06); }
        .nav-main a.active { color: var(--color-primary); background: rgba(30, 58, 95, 0.08); font-weight: 600; }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 1rem;
            right: 1rem;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px 3px 0 0;
        }
        .search-box {
            flex: 1;
            max-width: 420px;
            min-width: 180px;
            position: relative;
            margin: 0 0.5rem;
        }
        .search-box input[type="text"] {
            width: 100%;
            padding: 0.65rem 1rem 0.65rem 2.6rem;
            border: 2px solid var(--color-border);
            border-radius: 50px;
            background: var(--color-bg);
            font-size: 0.9rem;
            transition: var(--transition);
            color: var(--color-text);
        }
        .search-box input[type="text"]:focus {
            border-color: var(--color-primary-light);
            box-shadow: 0 0 0 4px rgba(30, 58, 95, 0.1);
            outline: none;
            background: var(--color-white);
        }
        .search-box input[type="text"]::placeholder { color: var(--color-text-lighter); }
        .search-box .search-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-text-lighter);
            font-size: 1rem;
            pointer-events: none;
        }
        .nav-toggle { display: none; font-size: 1.4rem; color: var(--color-primary); padding: 0.5rem; }
        .nav-toggle:hover { color: var(--color-accent); }

        /* 移动端导航 */
        @media (max-width: 820px) {
            .site-header .container { flex-wrap: wrap; }
            .nav-main {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: 1rem 1.5rem 1.5rem;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--color-border);
                gap: 0.25rem;
                z-index: 999;
            }
            .nav-main.open { display: flex; }
            .nav-main a { padding: 0.75rem 1rem; width: 100%; border-radius: var(--radius-sm); }
            .nav-main a.active::after { display: none; }
            .nav-main a.active { background: rgba(30, 58, 95, 0.08); }
            .nav-toggle { display: block; }
            .search-box { flex: 1; min-width: 120px; max-width: 300px; }
            .site-logo { font-size: 1.25rem; }
        }
        @media (max-width: 520px) {
            .search-box { min-width: 100px; max-width: 200px; }
            .search-box input[type="text"] { padding: 0.55rem 0.8rem 0.55rem 2.2rem; font-size: 0.85rem; }
            .site-logo { font-size: 1.1rem; }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 5rem 1.5rem 4rem;
            background: linear-gradient(135deg, rgba(15, 36, 64, 0.82) 0%, rgba(30, 58, 95, 0.72) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            color: var(--color-white);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
            pointer-events: none;
        }
        .hero-content { position: relative; z-index: 2; max-width: 820px; }
        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: var(--color-white);
            margin-bottom: 1.2rem;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.25);
        }
        .hero h1 span { color: var(--color-accent-light); }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.9);
            margin-bottom: 2.2rem;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }
        .hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
        .hero-actions .btn-primary {
            background: var(--color-accent);
            color: var(--color-white);
            padding: 0.9rem 2.4rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            box-shadow: 0 8px 24px rgba(232, 93, 58, 0.35);
        }
        .hero-actions .btn-primary:hover { background: var(--color-accent-dark); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(232, 93, 58, 0.45); }
        .hero-actions .btn-secondary {
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(6px);
            color: var(--color-white);
            padding: 0.9rem 2.4rem;
            border-radius: 50px;
            font-weight: 500;
            font-size: 1.05rem;
            border: 1.5px solid rgba(255,255,255,0.3);
        }
        .hero-actions .btn-secondary:hover { background: rgba(255,255,255,0.25); transform: translateY(-2px); }
        @media (max-width: 768px) {
            .hero { min-height: 420px; padding: 3.5rem 1.2rem 3rem; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .hero-actions .btn-primary, .hero-actions .btn-secondary { padding: 0.75rem 1.8rem; font-size: 0.95rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.6rem; }
            .hero p { font-size: 0.9rem; }
            .hero-actions { flex-direction: column; align-items: center; }
        }

        /* ===== 通用板块 ===== */
        .section { padding: var(--spacing-section) 0; }
        .section-alt { background: var(--color-bg-alt); }
        .section-dark { background: var(--color-bg-dark); color: var(--color-white); }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 { margin-bottom: 0.75rem; }
        .section-title p { max-width: 640px; margin: 0 auto; color: var(--color-text-light); font-size: 1.05rem; }
        .section-dark .section-title h2 { color: var(--color-white); }
        .section-dark .section-title p { color: rgba(255,255,255,0.7); }

        /* ===== 卡片 ===== */
        .card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .card-image { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; }
        .card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
        .card-body h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
        .card-body h3 a { color: var(--color-primary-dark); }
        .card-body h3 a:hover { color: var(--color-accent); }
        .card-body p { font-size: 0.92rem; color: var(--color-text-light); margin-bottom: 0.75rem; flex: 1; }
        .card-meta { font-size: 0.82rem; color: var(--color-text-lighter); display: flex; gap: 1rem; align-items: center; }
        .card-meta i { margin-right: 0.3rem; }
        .card-tag {
            display: inline-block;
            background: rgba(30, 58, 95, 0.08);
            color: var(--color-primary);
            padding: 0.2rem 0.7rem;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 500;
            margin-bottom: 0.6rem;
            align-self: flex-start;
        }
        .card-cta { margin-top: 0.5rem; }
        .card-cta a { font-weight: 600; color: var(--color-accent); font-size: 0.9rem; }
        .card-cta a:hover { color: var(--color-accent-dark); }
        .card-cta a i { margin-left: 0.3rem; transition: var(--transition); }
        .card-cta a:hover i { transform: translateX(4px); }

        /* 特色卡片（图标式） */
        .feature-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 2rem 1.8rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .feature-icon {
            width: 68px;
            height: 68px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: var(--color-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin: 0 auto 1.2rem;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon { transform: scale(1.05); box-shadow: 0 8px 24px rgba(30, 58, 95, 0.25); }
        .feature-card h3 { font-size: 1.2rem; margin-bottom: 0.6rem; }
        .feature-card p { font-size: 0.92rem; color: var(--color-text-light); margin-bottom: 0; }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary { background: var(--color-accent); color: var(--color-white); box-shadow: 0 4px 16px rgba(232, 93, 58, 0.3); }
        .btn-primary:hover { background: var(--color-accent-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232, 93, 58, 0.4); color: var(--color-white); }
        .btn-outline { background: transparent; color: var(--color-primary); border: 2px solid var(--color-primary); }
        .btn-outline:hover { background: var(--color-primary); color: var(--color-white); transform: translateY(-2px); }
        .btn-white { background: var(--color-white); color: var(--color-primary); }
        .btn-white:hover { background: var(--color-bg-alt); transform: translateY(-2px); }
        .btn-lg { padding: 0.9rem 2.4rem; font-size: 1.05rem; }

        /* ===== 徽章 / 标签 ===== */
        .badge {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(30, 58, 95, 0.08);
            color: var(--color-primary);
        }
        .badge-hot { background: rgba(232, 93, 58, 0.12); color: var(--color-accent); }
        .badge-new { background: rgba(45, 158, 111, 0.12); color: var(--color-success); }

        /* ===== 统计数字 ===== */
        .stats-grid { display: flex; gap: 2rem; justify-content: center; flex-wrap: wrap; text-align: center; }
        .stat-item { min-width: 140px; }
        .stat-number { font-size: 2.6rem; font-weight: 800; color: var(--color-accent); line-height: 1.1; }
        .stat-label { font-size: 0.95rem; color: var(--color-text-light); margin-top: 0.3rem; }
        .section-dark .stat-label { color: rgba(255,255,255,0.65); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.8rem;
            margin-bottom: 0.8rem;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
            border-left: 4px solid transparent;
        }
        .faq-item:hover { box-shadow: var(--shadow-md); border-left-color: var(--color-accent); }
        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-primary-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .faq-question i { color: var(--color-accent); font-size: 1.1rem; transition: var(--transition); flex-shrink: 0; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding-top: 0;
            color: var(--color-text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: 1rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary-light) 100%);
            padding: 4rem 1.5rem;
            text-align: center;
            border-radius: var(--radius-lg);
            margin: 0 1.5rem;
        }
        .cta-section h2 { color: var(--color-white); margin-bottom: 1rem; font-size: 2rem; }
        .cta-section p { color: rgba(255,255,255,0.8); margin-bottom: 2rem; max-width: 600px; margin-left: auto; margin-right: auto; font-size: 1.05rem; }
        .cta-section .btn { font-size: 1.05rem; padding: 0.9rem 2.6rem; }
        @media (max-width: 640px) {
            .cta-section { margin: 0 0.5rem; padding: 2.5rem 1rem; border-radius: var(--radius-md); }
            .cta-section h2 { font-size: 1.5rem; }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255,255,255,0.8);
            padding: 3.5rem 0 2rem;
            margin-top: 4rem;
        }
        .site-footer .grid-container { max-width: var(--container-max); }
        .footer-brand { font-size: 1.4rem; font-weight: 800; color: var(--color-white); margin-bottom: 0.5rem; }
        .footer-brand span { color: var(--color-accent-light); }
        .footer-desc { font-size: 0.9rem; color: rgba(255,255,255,0.6); max-width: 320px; line-height: 1.7; }
        .footer-heading { font-weight: 600; color: var(--color-white); margin-bottom: 1rem; font-size: 1rem; }
        .footer-links a { display: block; color: rgba(255,255,255,0.65); padding: 0.3rem 0; font-size: 0.9rem; }
        .footer-links a:hover { color: var(--color-accent-light); padding-left: 4px; }
        .footer-social { display: flex; gap: 0.8rem; margin-top: 1rem; }
        .footer-social a {
            width: 40px; height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--color-accent); color: var(--color-white); transform: translateY(-2px); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--color-accent-light); }
        @media (max-width: 640px) {
            .site-footer { padding: 2.5rem 0 1.5rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .footer-desc { max-width: 100%; }
        }

        /* ===== 响应式辅助 ===== */
        @media (max-width: 1024px) {
            :root { --spacing-section: 3.5rem; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            :root { --spacing-section: 2.5rem; --spacing-element: 1.8rem; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
            .hero { min-height: 360px; }
        }
        @media (max-width: 520px) {
            :root { --spacing-section: 2rem; }
            h1 { font-size: 1.5rem; }
            h2 { font-size: 1.3rem; }
            .feature-card { padding: 1.5rem 1rem; }
            .stat-number { font-size: 2rem; }
        }

        /* ===== 内容列表（CMS） ===== */
        .cms-list .card .card-tag { background: rgba(232, 93, 58, 0.1); color: var(--color-accent); }
        .cms-list .card .card-meta i { color: var(--color-text-lighter); }
        .cms-empty { text-align: center; padding: 3rem 1rem; color: var(--color-text-lighter); font-size: 1rem; background: var(--color-white); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }

        /* ===== 入口卡片（分类入口） ===== */
        .entry-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 240px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .entry-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .entry-card img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; }
        .entry-card-overlay {
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: linear-gradient(to top, rgba(15,36,64,0.85) 0%, rgba(15,36,64,0.2) 70%, transparent 100%);
            z-index: 1;
        }
        .entry-card-content { position: relative; z-index: 2; padding: 1.5rem; width: 100%; }
        .entry-card-content h3 { color: var(--color-white); margin-bottom: 0.3rem; font-size: 1.2rem; }
        .entry-card-content p { color: rgba(255,255,255,0.75); font-size: 0.88rem; margin-bottom: 0.5rem; }
        .entry-card-content .badge { background: var(--color-accent); color: var(--color-white); font-size: 0.75rem; }
        @media (max-width: 520px) {
            .entry-card { height: 180px; }
            .entry-card-content { padding: 1rem; }
            .entry-card-content h3 { font-size: 1rem; }
        }

        /* ===== 额外间距和分割 ===== */
        .gap-1 { gap: 1rem; }
        .gap-2 { gap: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .text-center { text-align: center; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg: #f8f9fa;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border: #e0e0e0;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            font-size: 16px;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        
        /* Header & Navigation */
        .site-header {
            background: var(--text-white);
            box-shadow: 0 2px 16px rgba(0,0,0,0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .site-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-logo span {
            color: var(--secondary);
            -webkit-text-fill-color: var(--secondary);
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            color: var(--text);
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            font-size: 0.95rem;
            position: relative;
        }
        .nav-main a:hover {
            background: rgba(230, 57, 70, 0.06);
            color: var(--primary);
        }
        .nav-main a.active {
            background: var(--primary);
            color: var(--text-white);
        }
        .nav-main a.active:hover {
            background: var(--primary-dark);
        }
        .search-box {
            position: relative;
            flex: 1;
            max-width: 420px;
            min-width: 180px;
        }
        .search-box .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .search-box input {
            width: 100%;
            padding: 10px 16px 10px 44px;
            border: 2px solid var(--border);
            border-radius: 50px;
            background: var(--bg);
            transition: all var(--transition);
            font-size: 0.9rem;
            outline: none;
        }
        .search-box input:focus {
            border-color: var(--primary);
            background: var(--text-white);
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.08);
        }
        .search-box input::placeholder {
            color: var(--text-light);
            font-size: 0.85rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: var(--bg); }
        
        /* Article Banner */
        .article-banner {
            background: linear-gradient(135deg, var(--secondary) 0%, #0d1b2a 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .article-banner .container {
            position: relative;
            z-index: 1;
        }
        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-banner .breadcrumb a {
            color: rgba(255,255,255,0.7);
            transition: color var(--transition);
        }
        .article-banner .breadcrumb a:hover { color: var(--text-white); }
        .article-banner .breadcrumb i { font-size: 0.7rem; }
        .article-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            max-width: 800px;
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }
        .article-meta i { margin-right: 6px; }
        .article-meta .cat-tag {
            background: var(--primary);
            color: var(--text-white);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        
        /* Article Main */
        .article-main {
            padding: 60px 0 80px;
        }
        .article-main .grid-x {
            align-items: flex-start;
        }
        .article-content-wrap {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 48px;
        }
        .article-content-wrap .content-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content-wrap .content-body p {
            margin-bottom: 1.2em;
        }
        .article-content-wrap .content-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 1.8em 0 0.6em;
            color: var(--secondary);
        }
        .article-content-wrap .content-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 1.5em 0 0.5em;
            color: var(--secondary);
        }
        .article-content-wrap .content-body ul, 
        .article-content-wrap .content-body ol {
            margin: 0 0 1.2em 1.5em;
        }
        .article-content-wrap .content-body li {
            margin-bottom: 0.4em;
        }
        .article-content-wrap .content-body img {
            border-radius: var(--radius-sm);
            margin: 1.5em auto;
            box-shadow: var(--shadow);
        }
        .article-content-wrap .content-body blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(230,57,70,0.04);
            padding: 16px 24px;
            margin: 1.5em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-content-wrap .content-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content-wrap .content-body a:hover {
            color: var(--primary-dark);
        }
        .article-content-wrap .not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-content-wrap .not-found i {
            font-size: 4rem;
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .article-content-wrap .not-found h2 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin-bottom: 12px;
        }
        .article-content-wrap .not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .article-content-wrap .not-found .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: var(--primary);
            color: var(--text-white);
            border-radius: 50px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .article-content-wrap .not-found .btn-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            color: var(--text-white);
        }
        
        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: calc(var(--header-height) + 30px);
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px;
            margin-bottom: 28px;
        }
        .sidebar-card .sc-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--bg);
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-links li {
            margin-bottom: 4px;
        }
        .sidebar-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 0.95rem;
            transition: all var(--transition);
        }
        .sidebar-links a:hover {
            background: rgba(230,57,70,0.06);
            color: var(--primary);
            transform: translateX(4px);
        }
        .sidebar-links a i {
            color: var(--primary);
            font-size: 0.85rem;
            width: 20px;
            text-align: center;
        }
        .sidebar-card .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-card .tag-cloud a {
            display: inline-block;
            padding: 6px 16px;
            background: var(--bg);
            border-radius: 50px;
            font-size: 0.8rem;
            color: var(--text);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .sidebar-card .tag-cloud a:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        
        /* Related Articles Section */
        .related-section {
            background: var(--text-white);
            padding: 70px 0;
            border-top: 1px solid var(--border);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--secondary);
            text-align: center;
            margin-bottom: 12px;
        }
        .related-section .section-sub {
            text-align: center;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 48px;
            font-size: 1rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .related-card .rc-img {
            height: 200px;
            background: var(--bg);
            overflow: hidden;
        }
        .related-card .rc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .related-card:hover .rc-img img {
            transform: scale(1.05);
        }
        .related-card .rc-body {
            padding: 24px;
        }
        .related-card .rc-cat {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(230,57,70,0.08);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .related-card .rc-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .rc-title a {
            color: inherit;
            transition: color var(--transition);
        }
        .related-card .rc-title a:hover {
            color: var(--primary);
        }
        .related-card .rc-excerpt {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .rc-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 12px;
        }
        
        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 0;
        }
        .footer-brand {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .footer-brand span {
            color: var(--primary);
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            opacity: 0.8;
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: var(--text-white);
            font-size: 1.2rem;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            transform: translateY(-3px);
            color: var(--text-white);
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
        }
        .footer-links a:hover {
            color: var(--text-white);
            transform: translateX(4px);
        }
        .footer-bottom {
            margin-top: 40px;
            padding: 20px 0;
            border-top: 1px solid rgba(255,255,255,0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .footer-bottom a {
            color: var(--primary-light);
        }
        .footer-bottom a:hover {
            color: var(--text-white);
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .article-banner h1 { font-size: 2.2rem; }
            .article-content-wrap { padding: 36px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .site-header .container { gap: 12px; }
            .nav-main {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--text-white);
                flex-direction: column;
                padding: 20px 24px;
                box-shadow: 0 8px 32px rgba(0,0,0,0.1);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s ease;
                border-radius: 0 0 var(--radius) var(--radius);
                z-index: 999;
                gap: 4px;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-main a { width: 100%; padding: 12px 18px; }
            .nav-toggle { display: block; }
            .search-box { min-width: 120px; }
            .search-box input { padding: 8px 12px 8px 38px; font-size: 0.8rem; }
            .article-banner { padding: 50px 0 40px; }
            .article-banner h1 { font-size: 1.7rem; }
            .article-meta { gap: 12px; font-size: 0.8rem; }
            .article-main { padding: 40px 0 60px; }
            .article-content-wrap { padding: 24px; }
            .article-content-wrap .content-body { font-size: 0.98rem; }
            .sidebar-card { padding: 20px; }
            .related-grid { grid-template-columns: 1fr; }
            .site-footer { padding: 40px 0 0; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .site-logo { font-size: 1.3rem; }
            .search-box input { padding: 6px 10px 6px 34px; font-size: 0.75rem; }
            .article-banner h1 { font-size: 1.4rem; }
            .article-content-wrap { padding: 16px; }
            .article-content-wrap .content-body { font-size: 0.93rem; }
            .related-card .rc-img { height: 160px; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1e3a5f;
            --primary-light: #2a5298;
            --primary-dark: #0f2440;
            --accent: #e85d3a;
            --accent-light: #f07a5a;
            --accent-dark: #c94a2a;
            --bg-light: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0f2440;
            --text-primary: #1a2332;
            --text-secondary: #4a5568;
            --text-light: #8899aa;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --nav-height: 70px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .site-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
            line-height: 1.2;
        }
        .site-logo span {
            color: var(--accent);
        }
        .site-logo:hover {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: rgba(30, 58, 95, 0.06);
        }
        .nav-main a.active {
            color: var(--primary);
            background: rgba(30, 58, 95, 0.08);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .search-box {
            flex: 1;
            max-width: 420px;
            position: relative;
            margin: 0 8px;
        }

        .search-box .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 0.95rem;
            pointer-events: none;
        }

        .search-box input {
            width: 100%;
            padding: 10px 16px 10px 44px;
            border: 1.5px solid var(--border);
            border-radius: 50px;
            background: var(--bg-light);
            font-size: 0.9rem;
            color: var(--text-primary);
            transition: all var(--transition);
            outline: none;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-box input:focus {
            border-color: var(--primary-light);
            background: #ffffff;
            box-shadow: 0 0 0 4px rgba(30, 58, 95, 0.08);
        }

        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text-primary);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ===== 移动端导航抽屉 ===== */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.4);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .mobile-nav-overlay.open {
            opacity: 1;
        }

        .mobile-nav-panel {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100%;
            background: #ffffff;
            z-index: 1001;
            padding: 80px 28px 40px;
            box-shadow: -8px 0 40px rgba(0, 0, 0, 0.1);
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            overflow-y: auto;
        }
        .mobile-nav-panel.open {
            right: 0;
        }
        .mobile-nav-panel .mobile-nav-close {
            position: absolute;
            top: 18px;
            right: 20px;
            font-size: 1.5rem;
            color: var(--text-secondary);
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .mobile-nav-panel .mobile-nav-close:hover {
            background: rgba(0, 0, 0, 0.04);
        }
        .mobile-nav-panel a {
            display: block;
            padding: 14px 16px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            margin-bottom: 4px;
        }
        .mobile-nav-panel a:hover {
            background: rgba(30, 58, 95, 0.06);
            color: var(--primary);
        }
        .mobile-nav-panel a.active {
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
            font-weight: 600;
        }
        .mobile-nav-panel .mobile-search {
            margin-bottom: 24px;
            position: relative;
        }
        .mobile-nav-panel .mobile-search input {
            width: 100%;
            padding: 12px 16px 12px 44px;
            border: 1.5px solid var(--border);
            border-radius: 50px;
            background: var(--bg-light);
            font-size: 0.95rem;
            color: var(--text-primary);
            outline: none;
        }
        .mobile-nav-panel .mobile-search input:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px rgba(30, 58, 95, 0.08);
        }
        .mobile-nav-panel .mobile-search i {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
        }

        /* ===== Hero ===== */
        .hero-section {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 93, 58, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(30, 58, 95, 0.3) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 20px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 50px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            letter-spacing: 1px;
            margin-bottom: 24px;
        }
        .hero-badge i {
            margin-right: 6px;
            color: var(--accent-light);
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-title span {
            color: var(--accent-light);
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--accent);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(232, 93, 58, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 93, 58, 0.4);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(232, 93, 58, 0.3);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.35);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-outline-light:active {
            transform: translateY(0);
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .hero-stats .stat-item {
            text-align: center;
            color: rgba(255, 255, 255, 0.85);
        }
        .hero-stats .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffffff;
            display: block;
            line-height: 1.2;
        }
        .hero-stats .stat-label {
            font-size: 0.85rem;
            opacity: 0.75;
            margin-top: 4px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: #ffffff;
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-light {
            background: var(--bg-light);
        }

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header .section-label {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(232, 93, 58, 0.1);
            color: var(--accent);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .section-dark .section-header h2 {
            color: var(--text-white);
        }
        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== 特色卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(30, 58, 95, 0.1);
        }
        .feature-card .icon-wrap {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            font-size: 1.6rem;
            color: var(--primary);
            background: rgba(30, 58, 95, 0.06);
            transition: all var(--transition);
        }
        .feature-card:hover .icon-wrap {
            background: var(--primary);
            color: #ffffff;
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 赛事分类卡片 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(30, 58, 95, 0.12);
        }
        .category-card .card-img {
            height: 180px;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .category-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover .card-img img {
            transform: scale(1.06);
        }
        .category-card .card-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 36, 64, 0.6) 0%, transparent 60%);
        }
        .category-card .card-body {
            padding: 20px 22px 24px;
        }
        .category-card .card-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .category-card .card-body .card-tag {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(232, 93, 58, 0.08);
            color: var(--accent);
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .category-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .category-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            transition: gap var(--transition);
        }
        .category-card .card-body .card-link i {
            font-size: 0.8rem;
            transition: transform var(--transition);
        }
        .category-card:hover .card-body .card-link i {
            transform: translateX(4px);
        }

        /* ===== 流程步骤 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .process-grid::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(to right, var(--primary), var(--accent), var(--primary));
            opacity: 0.2;
        }

        .process-step {
            text-align: center;
            position: relative;
        }
        .process-step .step-number {
            width: 56px;
            height: 56px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            font-size: 1.4rem;
            font-weight: 800;
            box-shadow: 0 4px 16px rgba(30, 58, 95, 0.25);
            position: relative;
            z-index: 2;
        }
        .process-step:nth-child(2) .step-number {
            background: var(--accent);
            box-shadow: 0 4px 16px rgba(232, 93, 58, 0.25);
        }
        .process-step:nth-child(3) .step-number {
            background: var(--primary-light);
            box-shadow: 0 4px 16px rgba(42, 82, 152, 0.25);
        }
        .process-step h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .process-step p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 260px;
            margin: 0 auto;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stats-grid .stat-block {
            padding: 32px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .stats-grid .stat-block:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .stats-grid .stat-block .stat-icon {
            font-size: 2rem;
            color: var(--accent-light);
            margin-bottom: 12px;
        }
        .stats-grid .stat-block .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: #ffffff;
            display: block;
            line-height: 1.2;
        }
        .stats-grid .stat-block .stat-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 6px;
        }

        /* ===== 热门赛事列表 ===== */
        .events-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .event-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 26px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(30, 58, 95, 0.1);
        }
        .event-card .event-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .event-card .event-type {
            padding: 2px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
        }
        .event-card .event-type.running {
            background: rgba(232, 93, 58, 0.1);
            color: var(--accent);
        }
        .event-card .event-type.basketball {
            background: rgba(42, 82, 152, 0.1);
            color: var(--primary-light);
        }
        .event-card .event-type.football {
            background: rgba(30, 58, 95, 0.1);
            color: var(--primary);
        }
        .event-card .event-date {
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .event-card .event-date i {
            margin-right: 4px;
        }
        .event-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .event-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .event-card .event-footer {
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .event-card .event-footer .btn-sm {
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary);
            color: #ffffff;
            transition: all var(--transition);
        }
        .event-card .event-footer .btn-sm:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
        }
        .event-card .event-footer .event-hot {
            font-size: 0.75rem;
            color: var(--accent);
            font-weight: 600;
        }
        .event-card .event-footer .event-hot i {
            margin-right: 4px;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(30, 58, 95, 0.12);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            padding: 20px 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: background var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            background: rgba(30, 58, 95, 0.02);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(30, 58, 95, 0.06);
            color: var(--primary);
            font-size: 0.8rem;
            transition: all var(--transition);
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--accent);
            color: #ffffff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 28px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 28px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .cta-section .btn {
            font-size: 1.05rem;
            padding: 16px 40px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }
        .site-footer .footer-brand {
            font-size: 1.6rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .site-footer .footer-brand span {
            color: var(--accent);
        }
        .site-footer .footer-desc {
            line-height: 1.8;
            margin-bottom: 20px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
        }
        .site-footer .footer-social a {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: all var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--accent);
            color: #ffffff;
            transform: translateY(-3px);
        }

        .site-footer .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            transition: all var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: #ffffff;
            padding-left: 4px;
        }

        .site-footer .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .site-footer .footer-bottom a:hover {
            color: #ffffff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.6rem;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .events-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid::before {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 62px;
            }
            .site-header .container {
                padding: 0 16px;
                gap: 12px;
            }
            .nav-main {
                display: none;
            }
            .search-box {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .mobile-nav-overlay.open,
            .mobile-nav-panel.open {
                display: block;
            }
            .mobile-nav-overlay.open {
                display: block;
            }

            .hero-section {
                padding: 100px 0 56px;
                min-height: auto;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
                padding: 0 8px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stats .stat-number {
                font-size: 1.6rem;
            }

            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .section-header p {
                font-size: 0.95rem;
            }

            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .categories-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .events-list {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stats-grid .stat-block .stat-num {
                font-size: 1.8rem;
            }

            .faq-question {
                padding: 16px 20px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 20px;
                font-size: 0.9rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 20px 16px;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }

            .site-footer {
                padding: 40px 0 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .mobile-nav-panel {
                width: 280px;
                right: -300px;
                padding: 72px 20px 32px;
            }
        }

        /* ===== 辅助类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 16px;
        }
        .mt-2 {
            margin-top: 32px;
        }
        .mb-1 {
            margin-bottom: 16px;
        }
        .mb-2 {
            margin-bottom: 32px;
        }