/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d1b2a;
            --primary-light: #1b3a5c;
            --secondary: #e63946;
            --secondary-hover: #c5303c;
            --accent: #f4a261;
            --accent-light: #f7b77e;
            --bg-dark: #0d1b2a;
            --bg-darker: #070f1a;
            --bg-light: #f8f9fa;
            --bg-card: #ffffff;
            --bg-card-alt: #f0f4f8;
            --text-dark: #1a1a2e;
            --text-body: #2d3436;
            --text-light: #636e72;
            --text-white: #f1f2f6;
            --text-muted: #b2bec3;
            --border-color: #dfe6e9;
            --border-light: #eef1f5;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
            --shadow-card: 0 4px 20px rgba(0,0,0,0.05);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
            --section-gap: 100px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            overflow-x: hidden;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-dark); font-weight: 700; line-height: 1.25; }

        /* ===== Container ===== */
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        @media screen and (max-width: 768px) {
            .container-custom { padding: 0 16px; }
        }

        /* ===== Header & Navigation (卡片化导航面板) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(13, 27, 42, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .logo i { color: var(--secondary); font-size: 1.5rem; }
        .logo span { background: linear-gradient(135deg, #fff 60%, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { color: #fff; opacity: 0.9; }

        /* 导航面板 — 卡片化容器 */
        .nav-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,255,255,0.06);
            padding: 4px 6px;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255,255,255,0.08);
            backdrop-filter: blur(4px);
        }
        .nav-panel a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-white);
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-panel a i { font-size: 0.95rem; opacity: 0.7; }
        .nav-panel a:hover { background: rgba(255,255,255,0.12); color: #fff; }
        .nav-panel a.active {
            background: var(--secondary);
            color: #fff;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.35);
        }
        .nav-panel a.active i { opacity: 1; }

        /* 右侧 CTA */
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-cta .btn-nav {
            padding: 8px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.85rem;
            background: var(--secondary);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta .btn-nav:hover { background: var(--secondary-hover); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(230,57,70,0.3); }
        .nav-cta .btn-nav-outline {
            background: transparent;
            border: 1.5px solid rgba(255,255,255,0.25);
            color: #fff;
            padding: 8px 20px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta .btn-nav-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(244,162,97,0.08); }

        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .mobile-menu-btn:hover { background: rgba(255,255,255,0.08); }

        /* 移动端导航抽屉 */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(13, 27, 42, 0.98);
            backdrop-filter: blur(20px);
            padding: 20px 24px 30px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            z-index: 999;
            box-shadow: var(--shadow-lg);
        }
        .mobile-drawer.open { display: block; }
        .mobile-drawer a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .mobile-drawer a i { width: 22px; opacity: 0.7; }
        .mobile-drawer a:hover { background: rgba(255,255,255,0.08); }
        .mobile-drawer a.active { background: var(--secondary); color: #fff; }
        .mobile-drawer .drawer-divider { height: 1px; background: rgba(255,255,255,0.08); margin: 12px 0; }
        .mobile-drawer .drawer-cta {
            display: block;
            text-align: center;
            padding: 14px;
            border-radius: var(--radius-md);
            background: var(--secondary);
            color: #fff;
            font-weight: 700;
            margin-top: 12px;
            text-decoration: none;
        }
        .mobile-drawer .drawer-cta:hover { background: var(--secondary-hover); }

        @media screen and (max-width: 820px) {
            .nav-panel { display: none; }
            .nav-cta .btn-nav-outline { display: none; }
            .mobile-menu-btn { display: block; }
            .nav-cta .btn-nav { padding: 8px 16px; font-size: 0.8rem; }
        }
        @media screen and (min-width: 821px) {
            .mobile-drawer { display: none !important; }
        }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: var(--nav-height);
            background: var(--bg-darker);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.3;
            transform: scale(1.02);
            transition: transform 0.6s ease;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(13,27,42,0.4) 0%, rgba(7,15,26,0.92) 80%);
        }
        .hero-section .container-custom { position: relative; z-index: 2; width: 100%; padding: 60px 24px; }
        .hero-content { max-width: 720px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(230,57,70,0.18);
            border: 1px solid rgba(230,57,70,0.25);
            padding: 6px 18px;
            border-radius: 50px;
            color: var(--secondary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero-title {
            font-size: 3.6rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.75);
            line-height: 1.8;
            max-width: 580px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .hero-actions .btn-primary {
            padding: 16px 38px;
            border-radius: var(--radius-md);
            background: var(--secondary);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .hero-actions .btn-primary:hover { background: var(--secondary-hover); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(230,57,70,0.35); }
        .hero-actions .btn-ghost {
            padding: 16px 32px;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,0.06);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: 1.5px solid rgba(255,255,255,0.15);
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }
        .hero-actions .btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: rgba(244,162,97,0.08); }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .hero-stat-item { text-align: left; }
        .hero-stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }
        .hero-stat-item .num .accent { color: var(--accent); }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            margin-top: 4px;
        }
        @media screen and (max-width: 768px) {
            .hero-title { font-size: 2.4rem; }
            .hero-desc { font-size: 1rem; }
            .hero-stats { gap: 24px; }
            .hero-stat-item .num { font-size: 1.6rem; }
        }
        @media screen and (max-width: 520px) {
            .hero-title { font-size: 1.9rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn-primary, .hero-actions .btn-ghost { width: 100%; justify-content: center; }
        }

        /* ===== Section 通用 ===== */
        .section-padding { padding: var(--section-gap) 0; }
        .section-padding-sm { padding: 60px 0; }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-dark h2, .section-dark h3, .section-dark .section-subtitle { color: #fff; }
        .section-light-alt { background: var(--bg-card-alt); }
        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            color: var(--text-dark);
        }
        .section-dark .section-title { color: #fff; }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }
        .section-dark .section-subtitle { color: rgba(255,255,255,0.6); }
        .text-center { text-align: center; }
        @media screen and (max-width: 768px) {
            .section-title { font-size: 1.8rem; }
            .section-padding { padding: 60px 0; }
            .section-subtitle { margin-bottom: 32px; }
        }

        /* ===== 卡片通用 ===== */
        .card-modern {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-modern:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(230,57,70,0.15); }
        .card-modern .card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
        .card-modern .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }
        .card-modern:hover .card-img { transform: scale(1.03); }
        .card-modern .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            background: rgba(230,57,70,0.08);
            color: var(--secondary);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .card-modern .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
            line-height: 1.4;
        }
        .card-modern .card-desc {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .card-modern .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }
        .card-modern .card-meta i { margin-right: 4px; }

        /* 深色卡片 */
        .card-dark {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.06);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            transition: var(--transition);
            height: 100%;
            backdrop-filter: blur(6px);
        }
        .card-dark:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.12); transform: translateY(-3px); }
        .card-dark .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(230,57,70,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--secondary);
            margin-bottom: 18px;
        }
        .card-dark h3 { color: #fff; font-size: 1.15rem; margin-bottom: 10px; }
        .card-dark p { color: rgba(255,255,255,0.6); font-size: 0.9rem; line-height: 1.7; }

        /* ===== 功能/特点板块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
        }

        /* ===== 分类入口 (卡片网格) ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 28px 20px;
            text-align: center;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
            display: block;
            color: var(--text-body);
        }
        .category-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--secondary); color: var(--text-body); }
        .category-card .cat-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(230,57,70,0.1), rgba(244,162,97,0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--secondary);
            margin: 0 auto 16px;
            transition: var(--transition);
        }
        .category-card:hover .cat-icon { background: var(--secondary); color: #fff; }
        .category-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
        .category-card p { font-size: 0.8rem; color: var(--text-light); }

        /* ===== 资讯/内容列表 ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
        }
        .post-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .post-card .post-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .post-card .post-body { padding: 22px 24px; flex: 1; display: flex; flex-direction: column; }
        .post-card .post-cat {
            display: inline-block;
            padding: 3px 14px;
            border-radius: 50px;
            background: rgba(230,57,70,0.08);
            color: var(--secondary);
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.3px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .post-card .post-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .post-card .post-excerpt {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }
        .post-card .post-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.78rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }
        .post-card .post-footer a {
            color: var(--primary-light);
            font-weight: 600;
            text-decoration: none;
        }
        .post-card .post-footer a:hover { color: var(--secondary); }

        /* ===== 数据/统计板块 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 28px;
        }
        .stat-box {
            text-align: center;
            padding: 32px 16px;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .stat-box:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); }
        .stat-box .stat-num {
            font-size: 2.8rem;
            font-weight: 900;
            color: #fff;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-box .stat-num .highlight-stat { color: var(--accent); }
        .stat-box .stat-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
            font-weight: 500;
        }

        /* ===== 使用流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            padding: 32px 16px;
            position: relative;
            counter-increment: step;
        }
        .step-item::before {
            content: counter(step);
            display: block;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            line-height: 48px;
            margin: 0 auto 18px;
            box-shadow: 0 8px 24px rgba(230,57,70,0.25);
        }
        .step-item h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; color: #fff; }
        .step-item p { font-size: 0.88rem; color: rgba(255,255,255,0.55); line-height: 1.7; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            border-bottom: 1px solid rgba(255,255,255,0.06);
            padding: 20px 0;
        }
        .faq-item:first-child { border-top: 1px solid rgba(255,255,255,0.06); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.05rem;
            color: #fff;
            gap: 16px;
            user-select: none;
        }
        .faq-question i { color: var(--secondary); font-size: 1.1rem; transition: var(--transition); flex-shrink: 0; }
        .faq-item.open .faq-question i { transform: rotate(45deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px 0 0;
            color: rgba(255,255,255,0.6);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #162a44 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.06;
        }
        .cta-section .container-custom { position: relative; z-index: 2; }
        .cta-section h2 { color: #fff; font-size: 2.4rem; font-weight: 800; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.65); font-size: 1.05rem; max-width: 560px; margin: 0 auto 32px; }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 18px 44px;
            border-radius: var(--radius-md);
            background: var(--secondary);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .cta-section .btn-cta:hover { background: var(--secondary-hover); transform: translateY(-3px); box-shadow: 0 16px 40px rgba(230,57,70,0.35); }
        .cta-section .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 18px 38px;
            border-radius: var(--radius-md);
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            border: 1.5px solid rgba(255,255,255,0.2);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            margin-left: 14px;
        }
        .cta-section .btn-cta-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(244,162,97,0.08); }
        @media screen and (max-width: 640px) {
            .cta-section h2 { font-size: 1.7rem; }
            .cta-section .btn-cta, .cta-section .btn-cta-outline { width: 100%; justify-content: center; margin-left: 0; margin-top: 12px; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darker);
            color: rgba(255,255,255,0.5);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255,255,255,0.04);
        }
        .site-footer .container-custom {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .site-footer h4 { color: #fff; font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; }
        .site-footer p, .site-footer a { font-size: 0.85rem; color: rgba(255,255,255,0.45); line-height: 1.8; }
        .site-footer a:hover { color: var(--accent); }
        .site-footer .footer-brand { font-size: 1.2rem; font-weight: 800; color: #fff; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
        .site-footer .footer-brand i { color: var(--secondary); }
        .site-footer .footer-links { display: flex; flex-direction: column; gap: 6px; }
        .site-footer .footer-bottom {
            grid-column: 1 / -1;
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 24px;
            margin-top: 24px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.3);
        }
        @media screen and (max-width: 768px) {
            .site-footer .container-custom { grid-template-columns: 1fr 1fr; gap: 30px; }
        }
        @media screen and (max-width: 520px) {
            .site-footer .container-custom { grid-template-columns: 1fr; gap: 24px; }
        }

        /* ===== 分隔线装饰 ===== */
        .divider-glow {
            width: 60px;
            height: 4px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--secondary), var(--accent));
            margin: 0 auto 20px;
        }
        .divider-left { margin: 0 0 20px; }

        /* ===== 标签 & 徽章 ===== */
        .badge-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.3px;
        }
        .badge-tag.red { background: rgba(230,57,70,0.12); color: var(--secondary); }
        .badge-tag.amber { background: rgba(244,162,97,0.12); color: var(--accent); }
        .badge-tag.blue { background: rgba(27,58,92,0.12); color: var(--primary-light); }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
        }
        .empty-state i { font-size: 3rem; margin-bottom: 16px; opacity: 0.3; }
        .empty-state p { font-size: 1rem; }

        /* ===== 辅助类 ===== */
        .gap-8 { gap: 8px; }
        .gap-12 { gap: 12px; }
        .gap-16 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-between { display: flex; align-items: center; justify-content: space-between; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .mb-32 { margin-bottom: 32px; }
        .w-full { width: 100%; }

        /* ===== 响应式微调 ===== */
        @media screen and (max-width: 1024px) {
            .site-footer .container-custom { grid-template-columns: 1fr 1fr 1fr; }
        }
        @media screen and (max-width: 768px) {
            :root { --section-gap: 60px; }
            .features-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
            .posts-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: 1fr 1fr; }
        }
        @media screen and (max-width: 520px) {
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .steps-grid { grid-template-columns: 1fr; }
            .features-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
            .stat-box .stat-num { font-size: 2rem; }
            .hero-title { font-size: 1.7rem; }
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container { max-width: var(--container-max); padding-left: 24px; padding-right: 24px; }
        @media screen and (max-width: 768px) {
            .grid-container { padding-left: 16px; padding-right: 16px; }
        }

/* roulang page: article */
:root {
            --primary: #e11d48;
            --primary-dark: #be123c;
            --primary-light: #fda4af;
            --secondary: #1e293b;
            --accent: #0ea5e9;
            --bg-dark: #0f172a;
            --bg-card: #ffffff;
            --bg-soft: #f8fafc;
            --bg-section-alt: #f1f5f9;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-weak: #94a3b8;
            --text-inverse: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(15,23,42,0.06);
            --shadow-md: 0 8px 24px rgba(15,23,42,0.08);
            --shadow-lg: 0 20px 48px rgba(15,23,42,0.12);
            --shadow-xl: 0 32px 64px rgba(15,23,42,0.16);
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 32px;
            --space-lg: 56px;
            --space-xl: 80px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            color: var(--text-primary);
            background: var(--bg-soft);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; border-radius: 4px; }
        button, input, textarea { font-family: inherit; }
        ul, ol { list-style: none; }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-sm);
        }

        /* ===== Navigation (卡片化导航面板) ===== */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(12px);
            background: rgba(255,255,255,0.92);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: var(--space-sm);
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .logo-area i { font-size: 1.6rem; color: var(--primary); }
        .logo-area span { color: var(--secondary); }
        .nav-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-soft);
            padding: 4px 6px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: inset 0 1px 2px rgba(0,0,0,0.02);
        }
        .nav-panel a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-panel a i { font-size: 0.95rem; color: var(--text-weak); transition: var(--transition); }
        .nav-panel a:hover { background: var(--bg-card); color: var(--primary); box-shadow: var(--shadow-sm); }
        .nav-panel a:hover i { color: var(--primary); }
        .nav-panel a.active { background: var(--primary); color: var(--text-inverse); box-shadow: 0 4px 12px rgba(225,29,72,0.25); }
        .nav-panel a.active i { color: var(--text-inverse); }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-cta .btn-primary {
            background: var(--primary);
            color: var(--text-inverse);
            border: none;
            padding: 10px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(225,29,72,0.25);
        }
        .header-cta .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(225,29,72,0.35); }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .mobile-toggle:hover { background: var(--bg-soft); }

        /* ===== Hero / Banner ===== */
        .article-banner {
            position: relative;
            padding: var(--space-xl) 0 var(--space-lg);
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.88) 0%, rgba(15,23,42,0.60) 100%);
            z-index: 1;
        }
        .article-banner .container-custom { position: relative; z-index: 2; width: 100%; }
        .article-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-inverse);
            line-height: 1.25;
            max-width: 800px;
            letter-spacing: -0.02em;
            margin-bottom: var(--space-sm);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 24px;
            align-items: center;
            color: rgba(255,255,255,0.75);
            font-size: 0.9rem;
        }
        .article-meta .badge {
            background: var(--primary);
            color: var(--text-inverse);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .article-meta i { margin-right: 6px; color: var(--primary-light); }

        /* ===== 文章内容区 ===== */
        .article-main {
            padding: var(--space-lg) 0 var(--space-xl);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: var(--space-lg);
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: var(--space-md) var(--space-md);
            overflow: hidden;
        }
        .article-body .cover-image {
            width: 100%;
            border-radius: var(--radius-md);
            margin-bottom: var(--space-md);
            object-fit: cover;
            max-height: 480px;
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-body .content p {
            margin-bottom: 1.2em;
        }
        .article-body .content h2, .article-body .content h3 {
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            font-weight: 700;
            color: var(--secondary);
        }
        .article-body .content h2 { font-size: 1.5rem; }
        .article-body .content h3 { font-size: 1.2rem; }
        .article-body .content ul, .article-body .content ol {
            margin: 0.8em 0 1.2em 1.6em;
        }
        .article-body .content li { list-style: disc; margin-bottom: 0.4em; }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg-soft);
            padding: var(--space-sm) var(--space-md);
            border-radius: var(--radius-sm);
            margin: 1.2em 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body .content img {
            border-radius: var(--radius-md);
            margin: 1.2em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content a { color: var(--primary); font-weight: 500; text-decoration: underline; }
        .article-body .content a:hover { color: var(--primary-dark); }

        .article-footer-bar {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            margin-top: var(--space-md);
            padding-top: var(--space-sm);
            border-top: 1px solid var(--border-color);
            gap: var(--space-sm);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag {
            background: var(--bg-soft);
            border: 1px solid var(--border-color);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-secondary);
            font-weight: 500;
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary); color: var(--text-inverse); border-color: var(--primary); }
        .share-buttons {
            display: flex;
            gap: 10px;
        }
        .share-buttons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-soft);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 1rem;
            transition: var(--transition);
        }
        .share-buttons a:hover { background: var(--primary); color: var(--text-inverse); border-color: var(--primary); transform: translateY(-2px); }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: var(--space-sm) var(--space-sm);
            border: 1px solid var(--border-color);
        }
        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: var(--space-sm);
            padding-bottom: 8px;
            border-bottom: 2px solid var(--primary);
            display: inline-block;
        }
        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-list-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-list-item:last-child { border-bottom: none; }
        .sidebar-list-item img {
            width: 72px;
            height: 52px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .sidebar-list-item a {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-list-item a:hover { color: var(--primary); }
        .sidebar-list-item .meta {
            font-size: 0.75rem;
            color: var(--text-weak);
            margin-top: 4px;
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: var(--text-inverse);
            padding: var(--space-sm) var(--space-sm);
            border-radius: var(--radius-lg);
            text-align: center;
        }
        .sidebar-cta h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
        .sidebar-cta p { font-size: 0.85rem; opacity: 0.85; margin-bottom: var(--space-sm); }
        .sidebar-cta .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 2px solid rgba(255,255,255,0.6);
            color: var(--text-inverse);
            padding: 8px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .sidebar-cta .btn-outline:hover { background: rgba(255,255,255,0.15); border-color: #fff; transform: translateY(-2px); }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: var(--space-lg) 0 var(--space-xl);
            background: var(--bg-section-alt);
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: var(--space-sm);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-section .section-title i { color: var(--primary); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-md);
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: var(--space-sm) var(--space-sm);
        }
        .related-card .card-body h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body h4 a { color: inherit; }
        .related-card .card-body h4 a:hover { color: var(--primary); }
        .related-card .card-body .meta {
            font-size: 0.8rem;
            color: var(--text-weak);
        }
        .related-card .card-body .meta i { margin-right: 4px; }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--space-lg) 0;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.65) 100%);
            z-index: 1;
        }
        .cta-section .container-custom { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-inverse);
            margin-bottom: var(--space-sm);
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto var(--space-md);
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: var(--text-inverse);
            border: none;
            padding: 14px 40px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(225,29,72,0.35);
        }
        .cta-section .btn-cta:hover { background: var(--primary-dark); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(225,29,72,0.45); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: var(--space-xl) 0 var(--space-md);
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .site-footer .container-custom {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: var(--space-lg) var(--space-md);
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-inverse);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: var(--space-sm);
        }
        .site-footer .footer-brand i { color: var(--primary); }
        .site-footer p { font-size: 0.9rem; line-height: 1.6; }
        .site-footer h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-inverse);
            margin-bottom: var(--space-sm);
            letter-spacing: 0.02em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .footer-links a:hover { color: var(--primary-light); padding-left: 4px; }
        .site-footer .footer-bottom {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: var(--space-md);
            border-top: 1px solid rgba(255,255,255,0.06);
            margin-top: var(--space-sm);
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .site-footer .fab, .site-footer .fas {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.5);
            transition: var(--transition);
        }
        .site-footer a:hover .fab,
        .site-footer a:hover .fas { color: var(--primary-light); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .site-footer .container-custom { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .mobile-toggle { display: block; }
            .nav-panel {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--bg-card);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                box-shadow: var(--shadow-lg);
                padding: var(--space-sm);
                gap: 4px;
                border: 1px solid var(--border-color);
                border-top: none;
            }
            .nav-panel.open { display: flex; }
            .nav-panel a { width: 100%; justify-content: flex-start; padding: 12px 18px; }
            .header-cta .btn-primary { padding: 8px 16px; font-size: 0.8rem; }
            .header-cta .btn-primary span { display: none; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .site-footer .container-custom { grid-template-columns: 1fr; gap: var(--space-md); }
            .article-banner { min-height: 240px; padding: var(--space-lg) 0 var(--space-md); }
            .article-body { padding: var(--space-sm) var(--space-sm); }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
        }
        @media (max-width: 520px) {
            .header-inner { height: 60px; }
            .nav-panel { top: 60px; }
            .logo-area { font-size: 1.1rem; }
            .logo-area i { font-size: 1.2rem; }
            .article-banner h1 { font-size: 1.4rem; }
            .article-meta { font-size: 0.8rem; gap: 8px 16px; }
            .article-body .content { font-size: 0.95rem; }
            .cta-section h2 { font-size: 1.4rem; }
            .cta-section .btn-cta { padding: 12px 28px; font-size: 0.9rem; }
            .related-card img { height: 150px; }
            .sidebar-card { padding: var(--space-sm); }
        }

        /* ===== 内容未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: var(--space-xl) var(--space-sm);
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }
        .not-found-box i { font-size: 3rem; color: var(--text-weak); margin-bottom: var(--space-sm); }
        .not-found-box h2 { font-size: 1.5rem; color: var(--text-primary); margin-bottom: 8px; }
        .not-found-box p { color: var(--text-secondary); margin-bottom: var(--space-sm); }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: var(--text-inverse);
            padding: 10px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover { background: var(--primary-dark); transform: translateY(-2px); }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --clr-primary: #0d1b2a;
            --clr-primary-light: #1b2d45;
            --clr-accent: #e63946;
            --clr-accent-hover: #c1121f;
            --clr-accent-soft: #f8d7da;
            --clr-gold: #f0c040;
            --clr-bg: #f4f6f9;
            --clr-surface: #ffffff;
            --clr-text: #1a1a2e;
            --clr-text-weak: #6c757d;
            --clr-border: rgba(0, 0, 0, 0.08);
            --clr-shadow: rgba(0, 0, 0, 0.06);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.07);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            background: var(--clr-bg);
            color: var(--clr-text);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--clr-accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--clr-accent-hover);
        }
        a:focus-visible {
            outline: 3px solid var(--clr-accent);
            outline-offset: 2px;
        }

        button,
        .button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: all var(--transition);
        }
        button:focus-visible,
        .button:focus-visible {
            outline: 3px solid var(--clr-accent);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 导航 (卡片化面板) ===== */
        .site-header {
            background: var(--clr-primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            gap: 16px;
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-brand i {
            color: var(--clr-gold);
            font-size: 1.5rem;
        }
        .logo-brand:hover {
            color: var(--clr-gold);
        }

        .nav-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.07);
            padding: 4px 6px;
            border-radius: 60px;
            backdrop-filter: blur(4px);
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-panel::-webkit-scrollbar {
            display: none;
        }

        .nav-panel a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 40px;
            font-size: 0.92rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .nav-panel a i {
            font-size: 1rem;
            color: inherit;
        }
        .nav-panel a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.12);
        }
        .nav-panel a.active {
            color: var(--clr-primary);
            background: #fff;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        .nav-panel a.active i {
            color: var(--clr-accent);
        }

        .nav-cta {
            background: var(--clr-accent);
            color: #fff !important;
            padding: 10px 24px !important;
            border-radius: 40px !important;
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            transition: all var(--transition);
        }
        .nav-cta:hover {
            background: var(--clr-accent-hover) !important;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35) !important;
        }

        .nav-cta-mobile {
            display: none;
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            background: var(--clr-primary);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            min-height: 340px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 80px 24px 60px;
            position: relative;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.85) 40%, rgba(230, 57, 70, 0.30) 100%);
            z-index: 1;
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .category-hero h1 i {
            color: var(--clr-gold);
            margin-right: 12px;
        }
        .category-hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.10);
            margin-bottom: 20px;
        }
        .hero-badge i {
            color: var(--clr-gold);
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 80px 0;
        }
        .section-block-alt {
            background: var(--clr-surface);
        }
        .section-block-dark {
            background: var(--clr-primary);
            color: #fff;
        }
        .section-block-dark .section-title,
        .section-block-dark .section-subtitle {
            color: #fff;
        }
        .section-block-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 12px;
            color: var(--clr-text);
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--clr-text-weak);
            font-size: 1.05rem;
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }
        .section-title i {
            color: var(--clr-accent);
            margin-right: 10px;
        }
        .section-block-dark .section-title i {
            color: var(--clr-gold);
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 28px;
        }

        .card-item {
            background: var(--clr-surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--clr-border);
            display: flex;
            flex-direction: column;
        }
        .card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card-item .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            border-radius: 0;
        }
        .card-item .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-item .card-tag {
            display: inline-block;
            background: var(--clr-accent-soft);
            color: var(--clr-accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 40px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .card-item h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--clr-text);
            line-height: 1.4;
        }
        .card-item p {
            font-size: 0.92rem;
            color: var(--clr-text-weak);
            line-height: 1.6;
            flex: 1;
        }
        .card-item .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            font-size: 0.82rem;
            color: var(--clr-text-weak);
            border-top: 1px solid var(--clr-border);
            padding-top: 14px;
        }
        .card-item .card-meta i {
            margin-right: 4px;
            color: var(--clr-accent);
        }

        /* ===== 分类概览 ===== */
        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .overview-grid .overview-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .overview-grid .overview-text p {
            font-size: 1.02rem;
            color: var(--clr-text-weak);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .overview-grid .overview-text .highlight-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
        }
        .overview-grid .overview-text .highlight-list span {
            background: var(--clr-accent-soft);
            color: var(--clr-accent);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.88rem;
            font-weight: 500;
        }
        .overview-grid .overview-img img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            width: 100%;
            height: auto;
        }

        /* ===== 赛事列表 ===== */
        .event-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .event-list-item {
            background: var(--clr-surface);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
            cursor: default;
        }
        .event-list-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--clr-accent);
        }
        .event-list-item .event-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--clr-accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--clr-accent);
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .event-list-item .event-info {
            flex: 1;
        }
        .event-list-item .event-info h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .event-list-item .event-info p {
            font-size: 0.88rem;
            color: var(--clr-text-weak);
        }
        .event-list-item .event-status {
            font-size: 0.82rem;
            font-weight: 500;
            padding: 4px 16px;
            border-radius: 40px;
            background: var(--clr-accent-soft);
            color: var(--clr-accent);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .event-list-item .event-status.live {
            background: #d4edda;
            color: #155724;
        }
        .event-list-item .event-status.upcoming {
            background: #cce5ff;
            color: #004085;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stats-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            padding: 36px 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .stats-item:hover {
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-4px);
        }
        .stats-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--clr-gold);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stats-item .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }
        .stats-item i {
            font-size: 2rem;
            color: var(--clr-gold);
            margin-bottom: 12px;
            display: block;
            opacity: 0.8;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--clr-surface);
            border-radius: var(--radius-sm);
            border: 1px solid var(--clr-border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--clr-accent);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            font-size: 1.02rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            user-select: none;
            gap: 16px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--clr-text);
            transition: background var(--transition);
        }
        .faq-item .faq-question:hover {
            background: rgba(0, 0, 0, 0.02);
        }
        .faq-item .faq-question i {
            color: var(--clr-accent);
            transition: transform var(--transition);
            font-size: 0.9rem;
        }
        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--clr-text-weak);
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--clr-primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 80px 24px;
            text-align: center;
            position: relative;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.88) 50%, rgba(230, 57, 70, 0.25) 100%);
            z-index: 1;
        }
        .cta-block .cta-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-block h2 {
            font-size: 2.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-block p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .cta-block .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: var(--clr-accent);
            color: #fff !important;
            padding: 14px 36px;
            border-radius: 60px;
            font-size: 1.02rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--clr-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.35);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.12);
            color: #fff !important;
            padding: 14px 36px;
            border-radius: 60px;
            font-size: 1.02rem;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: 1px solid rgba(255, 255, 255, 0.20);
            transition: all var(--transition);
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.20);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--clr-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .site-footer .container-custom {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .site-footer .footer-brand i {
            color: var(--clr-gold);
        }
        .site-footer p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
        }
        .site-footer h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--clr-gold);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            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: var(--clr-gold);
        }

        .site-footer .social-links {
            display: flex;
            gap: 14px;
            margin-top: 18px;
        }
        .site-footer .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: all var(--transition);
        }
        .site-footer .social-links a:hover {
            background: var(--clr-accent);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .overview-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .overview-grid .overview-img {
                order: -1;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .site-footer .container-custom {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .category-hero h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
            }
            .container-custom {
                padding: 0 18px;
            }
            .section-block {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }

            .site-header .container-custom {
                gap: 10px;
            }
            .logo-brand {
                font-size: 1.1rem;
                gap: 6px;
            }
            .logo-brand i {
                font-size: 1.2rem;
            }
            .nav-panel {
                padding: 3px 4px;
                gap: 4px;
                border-radius: 40px;
                overflow-x: auto;
                flex: 1;
            }
            .nav-panel a {
                padding: 7px 14px;
                font-size: 0.82rem;
                gap: 5px;
            }
            .nav-panel a i {
                font-size: 0.85rem;
            }
            .nav-cta {
                display: none;
            }
            .nav-cta-mobile {
                display: inline-flex;
                background: var(--clr-accent);
                color: #fff !important;
                padding: 7px 14px !important;
                border-radius: 40px !important;
                font-size: 0.82rem;
                font-weight: 600;
                align-items: center;
                gap: 5px;
                flex-shrink: 0;
            }
            .nav-cta-mobile i {
                font-size: 0.85rem;
            }

            .category-hero {
                min-height: 260px;
                padding: 60px 18px 40px;
            }
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .hero-badge {
                font-size: 0.78rem;
                padding: 4px 14px;
            }

            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
                gap: 20px;
            }

            .event-list-item {
                flex-wrap: wrap;
                padding: 16px 18px;
                gap: 12px;
            }
            .event-list-item .event-icon {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
            .event-list-item .event-info h4 {
                font-size: 0.95rem;
            }
            .event-list-item .event-status {
                font-size: 0.75rem;
                padding: 3px 12px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stats-item {
                padding: 24px 12px;
            }
            .stats-item .stat-number {
                font-size: 2rem;
            }
            .stats-item i {
                font-size: 1.5rem;
            }

            .faq-item .faq-question {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-item .faq-answer {
                padding: 0 18px 14px;
                font-size: 0.9rem;
            }

            .cta-block {
                padding: 56px 18px;
            }
            .cta-block h2 {
                font-size: 1.7rem;
            }
            .cta-block p {
                font-size: 0.95rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 28px;
                font-size: 0.92rem;
            }

            .site-footer .container-custom {
                grid-template-columns: 1fr;
                gap: 28px;
                text-align: center;
            }
            .site-footer .social-links {
                justify-content: center;
            }
            .site-footer .footer-links {
                align-items: center;
            }
        }

        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stats-item .stat-number {
                font-size: 1.7rem;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .logo-brand {
                font-size: 0.95rem;
            }
            .nav-panel a {
                padding: 5px 10px;
                font-size: 0.75rem;
            }
            .nav-cta-mobile {
                padding: 5px 10px !important;
                font-size: 0.75rem;
            }
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-x,
        .grid-y,
        .cell {
            margin: 0;
            padding: 0;
        }
        .grid-container {
            max-width: var(--max-width);
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }