/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6C5CE7;
            --primary-dark: #5A4BD1;
            --primary-light: #A29BFE;
            --primary-gradient: linear-gradient(135deg, #6C5CE7 0%, #A29BFE 100%);
            --secondary: #FF6B6B;
            --secondary-light: #FF8E8E;
            --accent: #FFA502;
            --accent-light: #FFBE4D;
            --bg: #F8F9FA;
            --bg-alt: #F1F2F6;
            --bg-dark: #2D3436;
            --bg-card: #FFFFFF;
            --text: #2D3436;
            --text-light: #636E72;
            --text-lighter: #B2BEC3;
            --text-white: #FFFFFF;
            --border: #DFE6E9;
            --border-light: #F0F0F5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(108, 92, 231, 0.10);
            --shadow-hover: 0 12px 40px rgba(108, 92, 231, 0.18);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --transition: all 0.30s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container: 1200px;
            --nav-height: 72px;
            --section-gap: 100px;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            overflow-x: hidden;
        }

        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: var(--radius-xs);
        }

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

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

        .container-narrow {
            max-width: 920px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 板块间距 ===== */
        .section {
            padding: 80px 0;
            position: relative;
        }

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

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }

        .section-gradient {
            background: var(--primary-gradient);
            color: var(--text-white);
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--text);
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 620px;
            margin-bottom: 48px;
            line-height: 1.6;
        }

        .section-title.text-white,
        .section-subtitle.text-white {
            color: var(--text-white);
        }

        .section-title-center {
            text-align: center;
        }
        .section-subtitle-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 4px;
            margin-bottom: 24px;
        }
        .section-divider.center {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo i {
            font-size: 1.6rem;
            color: var(--accent);
        }
        .logo:hover {
            color: var(--primary-dark);
        }
        .logo span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-menu a {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-light);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .nav-menu a:hover {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.06);
        }
        .nav-menu a.active {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.10);
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary-gradient);
            border-radius: 3px;
        }
        .nav-menu a.nav-cta {
            background: var(--primary-gradient);
            color: var(--text-white);
            padding: 10px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            margin-left: 12px;
        }
        .nav-menu a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.30);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.6rem;
            color: var(--text);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-xs);
        }
        .nav-toggle:hover {
            background: var(--bg-alt);
        }

        /* ===== Hero ===== */
        .hero {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, #F8F9FA 0%, #EDE7F6 50%, #E8E0F0 100%);
            position: relative;
            overflow: hidden;
            min-height: 85vh;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 107, 107, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(108, 92, 231, 0.12);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }
        .hero-badge i {
            font-size: 0.8rem;
        }

        .hero h1 {
            font-size: 3.6rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.03em;
            color: var(--text);
            margin-bottom: 20px;
            max-width: 780px;
        }
        .hero h1 .highlight {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.2rem;
            color: var(--text-light);
            max-width: 580px;
            margin-bottom: 36px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .hero-search {
            display: flex;
            align-items: center;
            background: var(--bg-card);
            border-radius: 60px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            padding: 4px 4px 4px 20px;
            max-width: 440px;
            width: 100%;
            border: 1px solid var(--border-light);
        }
        .hero-search i {
            color: var(--text-lighter);
            font-size: 1rem;
        }
        .hero-search input {
            flex: 1;
            padding: 12px 12px;
            background: transparent;
            font-size: 0.95rem;
            color: var(--text);
            min-width: 0;
        }
        .hero-search input::placeholder {
            color: var(--text-lighter);
        }
        .hero-search button {
            background: var(--primary-gradient);
            color: #fff;
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 60px;
            font-size: 0.9rem;
            cursor: pointer;
            white-space: nowrap;
        }
        .hero-search button:hover {
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(108, 92, 231, 0.30);
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 56px;
            padding-top: 32px;
            border-top: 1px solid var(--border);
        }
        .hero-stat h3 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-stat p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        /* ===== 特色卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
            color: #fff;
        }
        .feature-icon.purple {
            background: var(--primary-gradient);
        }
        .feature-icon.red {
            background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
        }
        .feature-icon.orange {
            background: linear-gradient(135deg, #FFA502, #FFBE4D);
        }
        .feature-icon.teal {
            background: linear-gradient(135deg, #00CEC9, #55E6C1);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .feature-card p {
            font-size: 0.93rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== 分类入口 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 40px 32px 36px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .category-card.cat-guide::before {
            background: linear-gradient(90deg, #6C5CE7, #A29BFE);
        }
        .category-card.cat-hot::before {
            background: linear-gradient(90deg, #FF6B6B, #FFA502);
        }
        .category-card.cat-community::before {
            background: linear-gradient(90deg, #00CEC9, #55E6C1);
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .category-icon {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 2rem;
            color: #fff;
        }
        .category-card.cat-guide .category-icon {
            background: var(--primary-gradient);
        }
        .category-card.cat-hot .category-icon {
            background: linear-gradient(135deg, #FF6B6B, #FFA502);
        }
        .category-card.cat-community .category-icon {
            background: linear-gradient(135deg, #00CEC9, #55E6C1);
        }

        .category-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .category-card p {
            font-size: 0.93rem;
            color: var(--text-light);
            margin-bottom: 20px;
            line-height: 1.6;
        }
        .category-card .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .category-card .cat-link i {
            transition: var(--transition);
        }
        .category-card .cat-link:hover {
            gap: 12px;
            color: var(--primary-dark);
        }

        /* ===== 最新资讯 (CMS) ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .post-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .post-card-body {
            padding: 24px 26px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .post-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--text-lighter);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .post-meta .post-cat {
            background: rgba(108, 92, 231, 0.10);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 2px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
        }
        .post-meta .post-date i {
            margin-right: 4px;
        }

        .post-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--text);
        }
        .post-card-body h3 a {
            color: inherit;
        }
        .post-card-body h3 a:hover {
            color: var(--primary);
        }

        .post-card-body p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }

        .post-card-body .post-readmore {
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .post-card-body .post-readmore i {
            transition: var(--transition);
        }
        .post-card-body .post-readmore:hover i {
            transform: translateX(4px);
        }

        .posts-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        .posts-empty i {
            font-size: 2.4rem;
            color: var(--text-lighter);
            margin-bottom: 16px;
        }
        .posts-empty p {
            font-size: 1.05rem;
            color: var(--text-light);
        }

        /* ===== 热门排行 ===== */
        .rank-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 18px 22px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .rank-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-hover);
        }

        .rank-number {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
            background: var(--bg-alt);
            color: var(--text-light);
        }
        .rank-item:nth-child(1) .rank-number {
            background: var(--primary-gradient);
            color: #fff;
        }
        .rank-item:nth-child(2) .rank-number {
            background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
            color: #fff;
        }
        .rank-item:nth-child(3) .rank-number {
            background: linear-gradient(135deg, #FFA502, #FFBE4D);
            color: #fff;
        }

        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-info h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 2px;
            color: var(--text);
        }
        .rank-info p {
            font-size: 0.85rem;
            color: var(--text-lighter);
            margin-bottom: 0;
        }

        .rank-tag {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            background: rgba(108, 92, 231, 0.08);
            color: var(--primary-dark);
            flex-shrink: 0;
        }
        .rank-tag.hot {
            background: rgba(255, 107, 107, 0.12);
            color: #e74c3c;
        }

        /* ===== 社区动态 ===== */
        .community-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .community-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 24px 24px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .community-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .community-card .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }
        .community-card .topic-tags span {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            background: rgba(108, 92, 231, 0.08);
            color: var(--primary-dark);
        }
        .community-card .topic-tags span.tag-hot {
            background: rgba(255, 107, 107, 0.10);
            color: #e74c3c;
        }
        .community-card .topic-tags span.tag-new {
            background: rgba(0, 206, 201, 0.10);
            color: #00a8a3;
        }

        .community-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .community-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .community-card .post-stats {
            display: flex;
            align-items: center;
            gap: 18px;
            font-size: 0.82rem;
            color: var(--text-lighter);
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }
        .community-card .post-stats i {
            margin-right: 4px;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .stat-card {
            text-align: center;
            padding: 40px 20px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-4px);
        }

        .stat-card .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 8px;
            background: linear-gradient(135deg, #fff 60%, rgba(255, 255, 255, 0.7));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-card .stat-label {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.80);
            font-weight: 500;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-question {
            padding: 20px 26px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-question:hover {
            background: rgba(108, 92, 231, 0.03);
        }

        .faq-answer {
            padding: 0 26px 20px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-gradient);
            border-radius: var(--radius);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 32px;
            position: relative;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--primary-dark);
            font-weight: 700;
            padding: 16px 40px;
            border-radius: 60px;
            font-size: 1.05rem;
            transition: var(--transition);
            position: relative;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.25);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 60px 0 32px;
        }

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

        .footer-brand .logo {
            color: #fff;
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .footer-brand .logo span {
            -webkit-text-fill-color: #fff;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.60);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.60);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: #fff;
            transform: translateX(3px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-bottom .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .footer-bottom .footer-social a:hover {
            background: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== 按钮通用 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-gradient);
            color: #fff;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 60px;
            font-size: 1rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108, 92, 231, 0.30);
            color: #fff;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 60px;
            font-size: 1rem;
            transition: var(--transition);
            cursor: pointer;
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .community-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero h1 {
                font-size: 2.8rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .container {
                padding: 0 20px;
            }
            .section {
                padding: 60px 0;
            }
            :root {
                --section-gap: 60px;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                padding: 12px 18px;
                border-radius: var(--radius-xs);
            }
            .nav-menu a.nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
            }
            .nav-menu a.active::after {
                display: none;
            }
            .nav-toggle {
                display: block;
            }

            .hero {
                padding: 120px 0 60px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }
            .hero-stats .hero-stat h3 {
                font-size: 1.6rem;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }
            .categories-grid {
                grid-template-columns: 1fr;
            }
            .posts-grid {
                grid-template-columns: 1fr;
            }
            .rank-grid {
                grid-template-columns: 1fr;
            }
            .community-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 48px 0;
            }
            :root {
                --section-gap: 40px;
            }

            .hero-search {
                flex-direction: column;
                border-radius: var(--radius-sm);
                padding: 12px;
                gap: 10px;
                background: var(--bg-card);
            }
            .hero-search input {
                width: 100%;
                padding: 10px 12px;
                background: var(--bg-alt);
                border-radius: var(--radius-xs);
            }
            .hero-search button {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
            .stat-card {
                padding: 24px 12px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .rank-item {
                flex-wrap: wrap;
            }
            .post-card-body {
                padding: 18px 18px 20px;
            }
            .community-card {
                padding: 20px 18px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px 16px;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mt-4 {
            margin-top: 32px;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .mb-4 {
            margin-bottom: 32px;
        }
        .gap-1 {
            gap: 8px;
        }
        .gap-2 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #5a4c9a;
            --primary-dark: #3f3470;
            --primary-light: #7b6db5;
            --primary-bg: #f0edf8;
            --secondary: #f5a623;
            --secondary-light: #ffc04d;
            --accent: #ff6b6b;
            --bg: #f5f3fa;
            --bg-white: #ffffff;
            --bg-dark: #2d2a3e;
            --text: #2d2a3e;
            --text-light: #7a759a;
            --text-lighter: #a9a4c9;
            --text-white: #f0eff5;
            --border: #e2dfed;
            --border-light: #f0eef7;
            --shadow-sm: 0 2px 8px rgba(90, 76, 154, 0.06);
            --shadow: 0 4px 20px rgba(90, 76, 154, 0.10);
            --shadow-hover: 0 8px 30px rgba(90, 76, 154, 0.18);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-xs: 4px;
            --transition: all 0.3s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *, *::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(--text);
            background: var(--bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        p { margin-bottom: 1rem; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: var(--bg-white); border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm); height: var(--header-height); display: flex; align-items: center;
        }
        .site-header .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
        .logo { display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 800; color: var(--primary); }
        .logo i { font-size: 1.6rem; color: var(--secondary); }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-menu { display: flex; align-items: center; gap: 6px; }
        .nav-menu a { padding: 8px 16px; font-size: 0.9rem; font-weight: 500; color: var(--text-light); border-radius: var(--radius-sm); transition: var(--transition); position: relative; }
        .nav-menu a:hover { color: var(--primary); background: var(--primary-bg); }
        .nav-menu a.active { color: var(--primary); background: var(--primary-bg); font-weight: 600; }
        .nav-menu a.active::after { content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--secondary); border-radius: 2px; }
        .nav-cta { background: linear-gradient(135deg, var(--secondary), #e8941a) !important; color: #fff !important; padding: 8px 20px !important; border-radius: 50px !important; font-weight: 600 !important; box-shadow: 0 4px 12px rgba(245, 166, 35, 0.35); }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245, 166, 35, 0.45) !important; background: linear-gradient(135deg, #e8941a, var(--secondary)) !important; }
        .nav-cta i { margin-right: 6px; }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); cursor: pointer; padding: 4px 8px; border-radius: var(--radius-xs); transition: var(--transition); }
        .nav-toggle:hover { background: var(--primary-bg); }
        .nav-toggle:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }

        /* ===== 面包屑 ===== */
        .breadcrumb-area { background: var(--bg-white); border-bottom: 1px solid var(--border-light); padding: 16px 0; }
        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-light); flex-wrap: wrap; }
        .breadcrumb a { color: var(--text-light); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .sep { color: var(--text-lighter); font-size: 0.75rem; }
        .breadcrumb .current { color: var(--text); font-weight: 500; }

        /* ===== 文章主体 ===== */
        .article-main { padding: 40px 0 60px; }
        .article-grid { display: grid; grid-template-columns: 1fr 320px; gap: 40px; align-items: start; }
        .article-content-wrap { background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 40px 44px; }
        .article-header { margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--border-light); }
        .article-category { display: inline-block; background: var(--primary-bg); color: var(--primary); font-size: 0.78rem; font-weight: 600; padding: 4px 14px; border-radius: 50px; margin-bottom: 16px; }
        .article-title { font-size: 1.9rem; font-weight: 800; line-height: 1.3; margin-bottom: 16px; color: var(--text); }
        .article-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: 0.85rem; color: var(--text-light); }
        .article-meta i { margin-right: 5px; color: var(--text-lighter); }
        .article-body { font-size: 1.05rem; line-height: 1.9; color: var(--text); }
        .article-body p { margin-bottom: 1.2rem; }
        .article-body h2, .article-body h3 { margin-top: 1.8rem; margin-bottom: 0.8rem; }
        .article-body h2 { font-size: 1.5rem; }
        .article-body h3 { font-size: 1.25rem; }
        .article-body ul, .article-body ol { padding-left: 1.5rem; margin-bottom: 1.2rem; }
        .article-body ul { list-style: disc; }
        .article-body ol { list-style: decimal; }
        .article-body li { margin-bottom: 0.4rem; }
        .article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
        .article-body a:hover { color: var(--secondary); }
        .article-body blockquote { border-left: 4px solid var(--secondary); background: var(--primary-bg); padding: 16px 20px; margin: 1.2rem 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-light); font-style: italic; }
        .article-body img { border-radius: var(--radius-sm); margin: 1.2rem 0; }
        .article-body code { background: var(--primary-bg); padding: 2px 8px; border-radius: var(--radius-xs); font-size: 0.9em; }

        /* ===== 文章底部（标签/分享） ===== */
        .article-footer-bar { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border-light); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; }
        .article-tags { display: flex; flex-wrap: wrap; gap: 8px; }
        .tag { display: inline-block; background: var(--primary-bg); color: var(--primary); font-size: 0.78rem; padding: 4px 14px; border-radius: 50px; transition: var(--transition); }
        .tag:hover { background: var(--primary); color: #fff; }
        .share-btns { display: flex; gap: 8px; align-items: center; }
        .share-btns span { font-size: 0.85rem; color: var(--text-light); margin-right: 4px; }
        .share-btn { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; background: var(--primary-bg); color: var(--primary); font-size: 1rem; transition: var(--transition); }
        .share-btn:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

        /* ===== 上下篇导航 ===== */
        .article-nav { margin-top: 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
        .article-nav a { display: flex; flex-direction: column; padding: 16px 20px; border-radius: var(--radius-sm); background: var(--primary-bg); transition: var(--transition); border: 1px solid transparent; }
        .article-nav a:hover { background: var(--bg-white); border-color: var(--border); box-shadow: var(--shadow-sm); }
        .article-nav .nav-label { font-size: 0.78rem; color: var(--text-lighter); margin-bottom: 4px; }
        .article-nav .nav-title { font-size: 0.95rem; font-weight: 600; color: var(--text); }
        .article-nav .nav-next { text-align: right; }

        /* ===== 侧边栏 ===== */
        .sidebar { display: flex; flex-direction: column; gap: 28px; }
        .sidebar-card { background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
        .sidebar-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 2px solid var(--primary-bg); position: relative; }
        .sidebar-card h3::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 40px; height: 2px; background: var(--secondary); border-radius: 2px; }
        .sidebar-list { display: flex; flex-direction: column; gap: 10px; }
        .sidebar-list a { display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-radius: var(--radius-sm); transition: var(--transition); font-size: 0.9rem; color: var(--text); }
        .sidebar-list a:hover { background: var(--primary-bg); color: var(--primary); }
        .sidebar-list a i { width: 20px; color: var(--primary-light); font-size: 0.85rem; }
        .sidebar-list a .count { margin-left: auto; background: var(--primary-bg); color: var(--text-light); font-size: 0.75rem; padding: 0 10px; border-radius: 50px; }
        .sidebar-post-item { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border-light); }
        .sidebar-post-item:last-child { border-bottom: none; }
        .sidebar-post-item .post-thumb { width: 60px; height: 60px; border-radius: var(--radius-sm); background: var(--primary-bg); flex-shrink: 0; overflow: hidden; display: flex; align-items: center; justify-content: center; color: var(--text-lighter); font-size: 1.5rem; }
        .sidebar-post-item .post-info { flex: 1; min-width: 0; }
        .sidebar-post-item .post-info a { font-size: 0.88rem; font-weight: 500; color: var(--text); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.4; }
        .sidebar-post-item .post-info a:hover { color: var(--primary); }
        .sidebar-post-item .post-info .meta { font-size: 0.75rem; color: var(--text-lighter); margin-top: 4px; }
        .sidebar-cta { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; padding: 24px; border-radius: var(--radius); text-align: center; }
        .sidebar-cta h4 { color: #fff; font-size: 1.1rem; margin-bottom: 8px; }
        .sidebar-cta p { font-size: 0.85rem; color: rgba(255,255,255,0.8); margin-bottom: 16px; }
        .sidebar-cta .btn-cta { display: inline-block; background: var(--secondary); color: #fff; padding: 10px 28px; border-radius: 50px; font-weight: 600; font-size: 0.9rem; transition: var(--transition); box-shadow: 0 4px 14px rgba(245, 166, 35, 0.35); }
        .sidebar-cta .btn-cta:hover { background: var(--secondary-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245, 166, 35, 0.45); }

        /* ===== 相关文章 ===== */
        .related-section { background: var(--bg-white); padding: 48px 0; margin-top: 40px; border-top: 1px solid var(--border-light); }
        .related-section .section-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 28px; text-align: center; }
        .related-section .section-title span { color: var(--primary); }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .related-card { background: var(--bg); border-radius: var(--radius); overflow: hidden; transition: var(--transition); border: 1px solid var(--border-light); }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .related-card .card-img { height: 160px; background: var(--primary-bg); display: flex; align-items: center; justify-content: center; color: var(--text-lighter); font-size: 2.5rem; }
        .related-card .card-body { padding: 16px 20px 20px; }
        .related-card .card-body .cat { font-size: 0.72rem; color: var(--primary); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
        .related-card .card-body h4 { font-size: 1rem; font-weight: 600; margin: 6px 0 8px; }
        .related-card .card-body h4 a { color: var(--text); }
        .related-card .card-body h4 a:hover { color: var(--primary); }
        .related-card .card-body .meta { font-size: 0.78rem; color: var(--text-lighter); }

        /* ===== 错误提示 ===== */
        .error-wrap { text-align: center; padding: 80px 20px; }
        .error-wrap .error-icon { font-size: 4rem; color: var(--text-lighter); margin-bottom: 20px; }
        .error-wrap h2 { font-size: 1.6rem; margin-bottom: 12px; }
        .error-wrap p { color: var(--text-light); margin-bottom: 20px; font-size: 1rem; }
        .error-wrap .btn-home { display: inline-block; background: var(--primary); color: #fff; padding: 12px 32px; border-radius: 50px; font-weight: 600; transition: var(--transition); }
        .error-wrap .btn-home:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); }

        /* ===== 页脚 ===== */
        .site-footer { background: var(--bg-dark); color: var(--text-white); padding: 60px 0 32px; margin-top: 0; }
        .site-footer .logo { color: #fff; margin-bottom: 16px; }
        .site-footer .logo span { -webkit-text-fill-color: #fff; background: none; }
        .footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand p { font-size: 0.88rem; color: rgba(255,255,255,0.6); line-height: 1.7; max-width: 320px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 16px; position: relative; padding-bottom: 8px; }
        .footer-col h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 28px; height: 2px; background: var(--secondary); border-radius: 2px; }
        .footer-col ul { display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul a { color: rgba(255,255,255,0.55); font-size: 0.88rem; transition: var(--transition); }
        .footer-col ul a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
        .footer-bottom span { font-size: 0.82rem; color: rgba(255,255,255,0.4); }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.5); font-size: 1.1rem; transition: var(--transition); }
        .footer-social a:hover { background: var(--secondary); color: #fff; transform: translateY(-2px); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-grid { grid-template-columns: 1fr; }
            .sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 768px) {
            .nav-menu { display: none; flex-direction: column; position: absolute; top: var(--header-height); left: 0; right: 0; background: var(--bg-white); border-bottom: 1px solid var(--border); padding: 16px 24px; box-shadow: var(--shadow); gap: 4px; }
            .nav-menu.open { display: flex; }
            .nav-menu a { padding: 12px 16px; width: 100%; }
            .nav-menu a.active::after { display: none; }
            .nav-cta { text-align: center; margin-top: 4px; }
            .nav-toggle { display: block; }
            .article-content-wrap { padding: 24px 20px; }
            .article-title { font-size: 1.4rem; }
            .article-meta { gap: 10px; font-size: 0.8rem; }
            .sidebar { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .article-nav { grid-template-columns: 1fr; }
            .article-nav .nav-next { text-align: left; }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-content-wrap { padding: 16px 14px; }
            .article-title { font-size: 1.2rem; }
            .article-body { font-size: 0.95rem; }
            .breadcrumb-area { padding: 12px 0; }
            .breadcrumb { font-size: 0.78rem; gap: 4px; }
            .article-main { padding: 24px 0 40px; }
            .related-section { padding: 32px 0; }
            .related-section .section-title { font-size: 1.2rem; }
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }
        @media (max-width: 520px) {
            .grid-container { padding-left: 16px; padding-right: 16px; }
        }
        .cell { margin-bottom: 0; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --secondary: #fd79a8;
            --secondary-light: #fab1c8;
            --accent: #00cec9;
            --dark: #2d3436;
            --dark-light: #636e72;
            --bg: #f8f9fa;
            --bg-alt: #ffffff;
            --bg-card: #ffffff;
            --text: #2d3436;
            --text-light: #636e72;
            --text-muted: #b2bec3;
            --border: #e9ecef;
            --border-light: #f1f3f5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(108, 92, 231, 0.15);
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.05);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --spacing-section: 5rem;
            --spacing-block: 3rem;
        }

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

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

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -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(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }

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

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: var(--secondary);
            color: #fff;
        }
        .btn-secondary:hover {
            background: #e86a90;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(253, 121, 168, 0.35);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
        }
        .btn:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* ===== 标签/徽章 ===== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            background: var(--border);
            color: var(--text-light);
            transition: var(--transition);
        }
        .tag:hover {
            background: var(--primary-light);
            color: #fff;
        }
        .tag-primary {
            background: var(--primary);
            color: #fff;
        }
        .tag-primary:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .tag-secondary {
            background: var(--secondary);
            color: #fff;
        }
        .tag-hot {
            background: #ff6b6b;
            color: #fff;
        }
        .tag-new {
            background: var(--accent);
            color: #fff;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
        }
        .badge-primary {
            background: rgba(108, 92, 231, 0.12);
            color: var(--primary);
        }
        .badge-hot {
            background: rgba(255, 107, 107, 0.12);
            color: #ff6b6b;
        }
        .badge-top {
            background: rgba(253, 121, 168, 0.12);
            color: var(--secondary);
        }

        /* ===== 头部 / 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--dark);
        }
        .logo i {
            font-size: 28px;
            color: var(--primary);
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.9;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-menu a {
            padding: 8px 16px;
            border-radius: var(--radius-xs);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-menu a:hover {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.06);
        }
        .nav-menu a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(108, 92, 231, 0.10);
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 4px;
            background: var(--primary);
        }
        .nav-menu a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            margin-left: 8px;
        }
        .nav-menu a.nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(108, 92, 231, 0.3);
        }
        .nav-menu a.nav-cta i {
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 26px;
            color: var(--dark);
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-xs);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--border);
        }
        .nav-toggle:focus-visible {
            outline: 3px solid var(--primary-light);
        }

        /* ===== Hero 区 ===== */
        .hero-section {
            background: linear-gradient(135deg, #2d3436 0%, #1a1a2e 50%, #2d1b69 100%);
            padding: 80px 0 72px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: rgba(108, 92, 231, 0.15);
            filter: blur(80px);
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(253, 121, 168, 0.10);
            filter: blur(70px);
        }
        .hero-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .hero-section h1 {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .hero-section h1 i {
            color: var(--secondary);
            margin-right: 10px;
        }
        .hero-section .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 700px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .hero-search {
            max-width: 580px;
            margin: 0 auto;
            display: flex;
            gap: 0;
            background: rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 4px;
            backdrop-filter: blur(8px);
        }
        .hero-search input {
            flex: 1;
            padding: 14px 20px;
            border: none;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 16px;
            background: #fff;
            color: var(--text);
        }
        .hero-search input::placeholder {
            color: var(--text-muted);
        }
        .hero-search button {
            padding: 14px 28px;
            border: none;
            border-radius: 0 var(--radius) var(--radius) 0;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
        }
        .hero-search button:hover {
            background: var(--primary-dark);
        }
        .hero-search button:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: -3px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 24px;
        }
        .hero-tags .tag {
            background: rgba(255, 255, 255, 0.12);
            color: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-tags .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== 通用板块样式 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .section-header h2 i {
            color: var(--primary);
            margin-right: 8px;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header .divider {
            width: 50px;
            height: 4px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            margin: 16px auto 0;
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(108, 92, 231, 0.15);
        }
        .card-image {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .card-body {
            padding: 20px 22px 24px;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .card-body h3 a {
            color: var(--dark);
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .card-meta i {
            margin-right: 4px;
        }
        .card-footer {
            padding: 12px 22px;
            border-top: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        /* ===== 攻略分类标签区 ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
        }
        .category-tabs .tab-btn {
            padding: 10px 24px;
            border-radius: 50px;
            border: 2px solid var(--border);
            background: #fff;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            cursor: pointer;
            transition: var(--transition);
        }
        .category-tabs .tab-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }
        .category-tabs .tab-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .category-tabs .tab-btn:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* ===== 攻略网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        /* ===== 特色大卡 ===== */
        .feature-card {
            display: flex;
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card .fc-image {
            width: 240px;
            min-height: 200px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .feature-card .fc-body {
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .feature-card .fc-body h3 {
            font-size: 20px;
            margin-bottom: 10px;
        }
        .feature-card .fc-body p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .feature-card .fc-body .fc-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            gap: 20px;
        }

        /* ===== 排行榜 ===== */
        .rank-list {
            display: grid;
            gap: 14px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .rank-item:hover {
            border-color: rgba(108, 92, 231, 0.15);
            background: #fafafe;
            transform: translateX(4px);
        }
        .rank-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            background: var(--border);
            color: var(--text-light);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-number {
            background: #ff6b6b;
            color: #fff;
        }
        .rank-item:nth-child(2) .rank-number {
            background: #fdcb6e;
            color: #fff;
        }
        .rank-item:nth-child(3) .rank-number {
            background: #74b9ff;
            color: #fff;
        }
        .rank-info {
            flex: 1;
        }
        .rank-info h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .rank-info span {
            font-size: 13px;
            color: var(--text-muted);
        }
        .rank-badge {
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
        }

        /* ===== 作者/达人 ===== */
        .author-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .author-card {
            text-align: center;
            background: var(--bg-card);
            padding: 28px 16px 22px;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .author-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .author-card .avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 14px;
            border: 3px solid var(--border-light);
        }
        .author-card h4 {
            font-size: 17px;
            font-weight: 700;
        }
        .author-card .author-title {
            font-size: 13px;
            color: var(--text-muted);
            margin: 4px 0 10px;
        }
        .author-card .author-stats {
            display: flex;
            justify-content: center;
            gap: 20px;
            font-size: 13px;
            color: var(--text-light);
        }
        .author-card .author-stats i {
            color: var(--primary);
            margin-right: 4px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: grid;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(108, 92, 231, 0.12);
        }
        .faq-question {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 18px;
            flex-shrink: 0;
        }
        .faq-question:hover {
            background: rgba(108, 92, 231, 0.04);
        }
        .faq-question:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: -3px;
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #5a4bd1 50%, var(--secondary) 100%);
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            left: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            filter: blur(60px);
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            padding: 16px 40px;
            font-size: 17px;
        }
        .cta-section .btn:hover {
            background: var(--bg);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px;
        }
        .site-footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 20px;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo i {
            color: var(--secondary);
        }
        .footer-brand .logo span {
            background: none;
            -webkit-text-fill-color: #fff;
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 20px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            color: var(--secondary);
            transform: scale(1.15);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .author-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .feature-card .fc-image {
                width: 180px;
            }
            .hero-section h1 {
                font-size: 38px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 3.2rem;
                --header-height: 64px;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-menu a.active::after {
                display: none;
            }
            .nav-menu a.nav-cta {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
            }
            .nav-toggle {
                display: block;
            }
            .hero-section {
                padding: 56px 0 48px;
            }
            .hero-section h1 {
                font-size: 30px;
            }
            .hero-section .hero-sub {
                font-size: 16px;
            }
            .hero-search {
                flex-direction: column;
                border-radius: var(--radius-sm);
                background: transparent;
                gap: 8px;
            }
            .hero-search input {
                border-radius: var(--radius-sm);
            }
            .hero-search button {
                border-radius: var(--radius-sm);
            }
            .section-header h2 {
                font-size: 26px;
            }
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .feature-card {
                flex-direction: column;
            }
            .feature-card .fc-image {
                width: 100%;
                height: 200px;
            }
            .feature-card .fc-body {
                padding: 20px;
            }
            .author-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 16px;
                text-align: center;
            }
            .rank-item {
                padding: 12px 16px;
            }
            .category-tabs .tab-btn {
                padding: 8px 18px;
                font-size: 14px;
            }
            .cta-section h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-section h1 {
                font-size: 24px;
            }
            .hero-section .hero-sub {
                font-size: 14px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .author-grid {
                grid-template-columns: 1fr;
            }
            .category-tabs {
                gap: 8px;
            }
            .category-tabs .tab-btn {
                font-size: 13px;
                padding: 6px 14px;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .cta-section p {
                font-size: 15px;
            }
            .cta-section .btn {
                padding: 14px 28px;
                font-size: 15px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container {
            max-width: var(--max-width);
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .cell {
            margin-bottom: 0;
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --primary-bg: #f0edff;
            --secondary: #fd79a8;
            --secondary-light: #ffe8f0;
            --accent: #00cec9;
            --accent-bg: #e0f7f6;
            --dark: #2d3436;
            --dark-light: #636e72;
            --text: #2d3436;
            --text-light: #636e72;
            --text-muted: #b2bec3;
            --bg: #f8f9fd;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --border: #e8ecf4;
            --border-light: #f1f3f8;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 30px rgba(108, 92, 231, 0.10);
            --shadow-hover: 0 16px 48px rgba(108, 92, 231, 0.18);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        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; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--dark); }
        p { margin-bottom: 0; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }

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

        /* ===== Site Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--dark);
            transition: var(--transition);
        }
        .logo i { color: var(--primary); font-size: 1.5rem; }
        .logo:hover { opacity: 0.85; }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-menu a {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-light);
            font-weight: 500;
            font-size: 0.92rem;
            transition: var(--transition);
            position: relative;
        }
        .nav-menu a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-menu a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-cta {
            background: var(--primary) !important;
            color: #fff !important;
            padding: 10px 22px !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600 !important;
            margin-left: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-cta:hover { background: var(--primary-dark) !important; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(108,92,231,0.3); }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; color: var(--dark); cursor: pointer; padding: 4px 8px; border-radius: 8px; transition: var(--transition); }
        .nav-toggle:hover { background: var(--bg); }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--primary-bg) 0%, #f0e6ff 50%, var(--accent-bg) 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(108,92,231,0.08), transparent 70%);
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0,206,201,0.08), transparent 70%);
            pointer-events: none;
        }
        .page-hero .container { position: relative; z-index: 1; }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero h1 i { color: var(--primary); margin-right: 12px; }
        .page-hero p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 680px;
            line-height: 1.8;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
            font-size: 0.88rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--text-muted); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb span { color: var(--primary); font-weight: 500; }
        .breadcrumb .sep { color: var(--text-muted); }

        /* ===== Section ===== */
        .section {
            padding: 70px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 36px;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-header .section-title { margin-bottom: 4px; }
        .section-header .section-subtitle { margin-bottom: 0; }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .card-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== 游戏卡片 ===== */
        .game-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .game-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .game-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: var(--text-muted);
            position: relative;
            overflow: hidden;
        }
        .game-card-img img { width: 100%; height: 100%; object-fit: cover; }
        .game-card-img .game-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 12px rgba(108,92,231,0.25);
        }
        .game-card-img .game-badge.hot { background: #e17055; }
        .game-card-img .game-badge.new { background: var(--accent); }
        .game-card-img .game-badge.top { background: #fdcb6e; color: #2d3436; }
        .game-card-body {
            padding: 22px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .game-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .game-card-body h3 a { color: var(--dark); }
        .game-card-body h3 a:hover { color: var(--primary); }
        .game-card-body p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .game-card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            margin-top: auto;
        }
        .game-card-meta span {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .game-card-meta span i { color: var(--primary-light); }
        .game-card-meta .rating {
            color: #f39c12;
            font-weight: 600;
        }
        .game-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 12px;
        }
        .game-tags .tag {
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--primary-bg);
            color: var(--primary);
        }
        .game-tags .tag.action { background: #ffe8e8; color: #e17055; }
        .game-tags .tag.rpg { background: #e8f0ff; color: #3498db; }
        .game-tags .tag.strategy { background: #f0e8ff; color: #9b59b6; }
        .game-tags .tag.casual { background: #e8fff0; color: #27ae60; }
        .game-tags .tag.sports { background: #fff8e8; color: #e67e22; }

        /* ===== 排行列表 ===== */
        .rank-list {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .rank-item:last-child { border-bottom: none; }
        .rank-item:hover { background: var(--primary-bg); }
        .rank-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1rem;
            background: var(--border-light);
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num { background: #fdcb6e; color: #2d3436; }
        .rank-item:nth-child(2) .rank-num { background: #dfe6e9; color: #2d3436; }
        .rank-item:nth-child(3) .rank-num { background: #fadbd8; color: #e17055; }
        .rank-info { flex: 1; min-width: 0; }
        .rank-info h4 { font-size: 1rem; font-weight: 600; margin-bottom: 2px; }
        .rank-info p { font-size: 0.84rem; color: var(--text-light); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .rank-score {
            font-weight: 700;
            color: var(--primary);
            font-size: 1.05rem;
            flex-shrink: 0;
        }
        .rank-score i { color: #f39c12; margin-right: 4px; font-size: 0.85rem; }

        /* ===== 分类筛选标签 ===== */
        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
        }
        .filter-tabs a {
            padding: 8px 22px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            background: var(--bg-card);
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .filter-tabs a:hover { border-color: var(--primary-light); color: var(--primary); }
        .filter-tabs a.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 4px 16px rgba(108,92,231,0.25); }

        /* ===== 图文特色区 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .feature-content h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
        .feature-content p { font-size: 1rem; color: var(--text-light); line-height: 1.8; margin-bottom: 20px; }
        .feature-list { display: flex; flex-direction: column; gap: 14px; }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            font-size: 0.95rem;
            color: var(--text);
        }
        .feature-list li i { color: var(--primary); font-size: 1.2rem; margin-top: 2px; flex-shrink: 0; }
        .feature-image {
            background: var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 4rem;
            color: var(--text-muted);
        }
        .feature-image img { width: 100%; height: 100%; object-fit: cover; }

        /* ===== 数字统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .stat-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
        .stat-item .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-top: 6px;
        }
        .stat-item i {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { transition: var(--transition); color: var(--primary-light); font-size: 0.9rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #8b7cf7 100%);
            border-radius: var(--radius-lg);
            padding: 60px 50px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(255,255,255,0.04);
            pointer-events: none;
        }
        .cta-section h2 { font-size: 2rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
        .cta-section p { font-size: 1.05rem; color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto 28px; }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: #fff;
            color: var(--primary) !important;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(0,0,0,0.12);
        }
        .cta-btn:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(0,0,0,0.18); background: #f8f9fd; }

        /* ===== Site Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: #fff; margin-bottom: 14px; }
        .footer-brand .logo i { color: var(--primary-light); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.8; color: rgba(255,255,255,0.55); max-width: 320px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 0;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-social { display: flex; gap: 14px; }
        .footer-social a { color: rgba(255,255,255,0.4); font-size: 1.2rem; transition: var(--transition); }
        .footer-social a:hover { color: var(--primary-light); transform: scale(1.15); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid { grid-template-columns: repeat(2, 1fr); }
            .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
            .feature-grid { grid-template-columns: 1fr; gap: 24px; }
            .page-hero h1 { font-size: 2.2rem; }
        }

        @media (max-width: 768px) {
            body { padding-top: 64px; }
            .site-header { height: 64px; }
            .nav-menu {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 40px rgba(0,0,0,0.08);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .nav-menu.open { transform: translateY(0); opacity: 1; pointer-events: all; }
            .nav-menu a { width: 100%; padding: 12px 16px; }
            .nav-cta { margin-left: 0; justify-content: center; }
            .nav-toggle { display: block; }
            .page-hero { padding: 40px 0 36px; }
            .page-hero h1 { font-size: 1.7rem; }
            .page-hero p { font-size: 0.95rem; }
            .section { padding: 48px 0; }
            .section-title { font-size: 1.5rem; }
            .card-grid { grid-template-columns: 1fr; gap: 20px; }
            .card-grid-2 { grid-template-columns: 1fr; gap: 20px; }
            .card-grid-4 { grid-template-columns: 1fr 1fr; gap: 16px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item { padding: 24px 16px; }
            .stat-item .num { font-size: 1.8rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section { padding: 40px 24px; }
            .cta-section h2 { font-size: 1.5rem; }
            .feature-grid { grid-template-columns: 1fr; }
            .feature-content h2 { font-size: 1.5rem; }
            .filter-tabs { gap: 8px; }
            .filter-tabs a { padding: 6px 16px; font-size: 0.82rem; }
            .rank-item { padding: 14px 16px; gap: 12px; }
            .rank-info p { white-space: normal; }
            .game-card-img { height: 170px; }
            .faq-question { padding: 14px 18px; font-size: 0.92rem; }
            .faq-answer { padding: 0 18px 14px; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .page-hero h1 { font-size: 1.4rem; }
            .card-grid-4 { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item .num { font-size: 1.5rem; }
            .game-card-img { height: 150px; }
            .cta-section h2 { font-size: 1.3rem; }
            .cta-btn { padding: 12px 24px; font-size: 0.95rem; }
        }

        /* ===== 辅助 ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 20px; }
        .mt-2 { margin-top: 40px; }
        .mb-1 { margin-bottom: 20px; }
        .mb-2 { margin-bottom: 40px; }
        .gap-1 { gap: 20px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .view-all {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.92rem;
            transition: var(--transition);
        }
        .view-all:hover { gap: 12px; color: var(--primary-dark); }
        .bg-white { background: var(--bg-white); }
        .bg-light { background: var(--bg); }
        .rounded { border-radius: var(--radius); }
        .shadow { box-shadow: var(--shadow-card); }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --accent: #fd79a8;
            --accent-dark: #e84393;
            --bg-body: #f8f9fc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #2d2b3a;
            --bg-footer: #1e1c2a;
            --text-primary: #2d2b3a;
            --text-secondary: #636e72;
            --text-light: #b2bec3;
            --text-white: #ffffff;
            --border-color: #e8e8f0;
            --border-light: #f0f0f5;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(108, 92, 231, 0.08);
            --shadow-md: 0 8px 30px rgba(108, 92, 231, 0.12);
            --shadow-lg: 0 20px 60px rgba(108, 92, 231, 0.15);
            --shadow-hover: 0 12px 40px rgba(108, 92, 231, 0.20);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --spacing-xl: 6rem;
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--primary-dark);
        }

        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 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        /* ===== 站点头部 ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
        }

        .logo i {
            font-size: 1.5rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
        }

        .nav-menu a {
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-menu a:hover {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.06);
        }

        .nav-menu a.active {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.10);
            font-weight: 600;
        }

        .nav-menu a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-lg);
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(108, 92, 231, 0.25);
        }

        .nav-menu a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(108, 92, 231, 0.35);
            color: #fff;
            background: linear-gradient(135deg, var(--primary-dark), var(--accent-dark));
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(108, 92, 231, 0.06);
        }

        /* ===== 页面头部 ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #3d3a4f 100%);
            padding: var(--spacing-lg) 0 var(--spacing-md);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(108, 92, 231, 0.15) 0%, transparent 60%), radial-gradient(circle at 70% 50%, rgba(253, 121, 168, 0.10) 0%, transparent 60%);
            animation: heroGlow 12s ease-in-out infinite alternate;
        }

        @keyframes heroGlow {
            0% {
                transform: translate(0, 0) scale(1);
            }
            100% {
                transform: translate(5%, 5%) scale(1.05);
            }
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            letter-spacing: -0.5px;
        }

        .page-hero h1 i {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 680px;
            margin: 0 auto 1.5rem;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.6rem;
        }

        .hero-tags .badge {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            padding: 0.4rem 1rem;
            border-radius: var(--radius-lg);
            font-size: 0.85rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .section-pad-sm {
            padding: var(--spacing-md) 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: var(--spacing-md);
        }

        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .section-title h2 i {
            color: var(--primary);
        }

        .section-title p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .section-title .title-line {
            display: inline-block;
            width: 50px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            margin-top: 0.75rem;
        }

        /* ===== 卡片基础 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(108, 92, 231, 0.15);
        }

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

        .card-body {
            padding: 1.25rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .card-body h3 a {
            color: var(--text-primary);
        }

        .card-body h3 a:hover {
            color: var(--primary);
        }

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

        .card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.82rem;
            color: var(--text-light);
            margin-top: 0.75rem;
            padding-top: 0.75rem;
            border-top: 1px solid var(--border-light);
        }

        .card-meta i {
            margin-right: 0.3rem;
        }

        /* ===== 标签 ===== */
        .tag {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: var(--radius-lg);
            font-size: 0.78rem;
            font-weight: 500;
            background: rgba(108, 92, 231, 0.08);
            color: var(--primary);
            transition: var(--transition);
        }

        .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        .tag-accent {
            background: rgba(253, 121, 168, 0.10);
            color: var(--accent);
        }

        .tag-accent:hover {
            background: var(--accent);
            color: #fff;
        }

        .tag-green {
            background: rgba(0, 184, 148, 0.10);
            color: #00b894;
        }

        .tag-green:hover {
            background: #00b894;
            color: #fff;
        }

        .tag-orange {
            background: rgba(255, 165, 2, 0.12);
            color: #e17055;
        }

        .tag-orange:hover {
            background: #e17055;
            color: #fff;
        }

        /* ===== 徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.3rem 0.8rem;
            border-radius: var(--radius-lg);
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
        }

        .badge-accent {
            background: var(--accent);
        }

        .badge-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.65rem 1.6rem;
            border-radius: var(--radius-lg);
            font-weight: 600;
            font-size: 0.92rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 15px rgba(108, 92, 231, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(108, 92, 231, 0.35);
            color: #fff;
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            box-shadow: 0 4px 15px rgba(253, 121, 168, 0.25);
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(253, 121, 168, 0.35);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

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

        .btn-white {
            background: #fff;
            color: var(--primary);
        }

        .btn-white:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 0.4rem 1rem;
            font-size: 0.82rem;
        }

        .btn-lg {
            padding: 0.85rem 2.2rem;
            font-size: 1.05rem;
        }

        /* ===== 统计数字 ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stat-item {
            text-align: center;
            padding: 1.5rem 1rem;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .stat-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .stat-item .label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 0.25rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(108, 92, 231, 0.12);
        }

        .faq-question {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1.02rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text-primary);
            transition: var(--transition);
        }

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

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

        .faq-answer {
            padding: 0 1.5rem 1.1rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

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

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

        /* ===== CTA 板块 ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            padding: var(--spacing-lg) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.4;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2rem;
            color: #fff;
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 1.5rem;
        }

        .cta-section .btn-white {
            font-size: 1.05rem;
            padding: 0.85rem 2.5rem;
        }

        .cta-section .btn-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.20);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-footer);
            padding: var(--spacing-lg) 0 0;
            color: rgba(255, 255, 255, 0.75);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 0.75rem;
        }

        .footer-brand .logo i,
        .footer-brand .logo span {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .footer-brand p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 1.25rem 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.75rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.40);
        }

        .footer-social {
            display: flex;
            gap: 0.75rem;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.50);
            font-size: 1rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 社区特色板块 ===== */
        .community-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }

        .feature-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.6rem;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        }

        .feature-card:nth-child(2) .icon-wrap {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
        }

        .feature-card:nth-child(3) .icon-wrap {
            background: linear-gradient(135deg, #00b894, #00a381);
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== 热帖列表 ===== */
        .hot-post-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        .hot-post-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1rem 1.25rem;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .hot-post-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(108, 92, 231, 0.12);
        }

        .hot-post-item .rank {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary-light);
            min-width: 32px;
            line-height: 1;
        }

        .hot-post-item:nth-child(1) .rank {
            color: #fdcb6e;
        }
        .hot-post-item:nth-child(2) .rank {
            color: #b2bec3;
        }
        .hot-post-item:nth-child(3) .rank {
            color: #e17055;
        }

        .hot-post-item .post-content {
            flex: 1;
        }

        .hot-post-item .post-content h4 {
            font-size: 0.98rem;
            font-weight: 600;
            margin-bottom: 0.2rem;
        }

        .hot-post-item .post-content h4 a {
            color: var(--text-primary);
        }

        .hot-post-item .post-content h4 a:hover {
            color: var(--primary);
        }

        .hot-post-item .post-content .meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .hot-post-item .post-content .meta i {
            margin-right: 0.25rem;
        }

        /* ===== 头像组 ===== */
        .avatar-group {
            display: flex;
            align-items: center;
        }

        .avatar-group .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 2px solid var(--bg-white);
            margin-left: -8px;
            object-fit: cover;
            background: var(--border-color);
        }

        .avatar-group .avatar:first-child {
            margin-left: 0;
        }

        .avatar-group .avatar-more {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 2px solid var(--bg-white);
            margin-left: -8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            background: var(--primary);
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }

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

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

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 1rem;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.10);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                gap: 0.25rem;
                border-top: 1px solid var(--border-color);
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-menu a {
                width: 100%;
                padding: 0.75rem 1rem;
                text-align: center;
            }

            .nav-toggle {
                display: block;
            }

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

            .page-hero p {
                font-size: 1rem;
            }

            .section-title h2 {
                font-size: 1.6rem;
            }

            .section-pad {
                padding: var(--spacing-md) 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .community-features {
                grid-template-columns: 1fr;
            }

            .hot-post-list {
                grid-template-columns: 1fr;
            }

            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }

            .stat-item .num {
                font-size: 1.8rem;
            }

            .hero-tags .badge {
                font-size: 0.78rem;
                padding: 0.3rem 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }

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

            .section-title h2 {
                font-size: 1.35rem;
            }

            .card-body {
                padding: 1rem 1.15rem;
            }

            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }

            .stat-item {
                padding: 1rem 0.75rem;
            }

            .stat-item .num {
                font-size: 1.5rem;
            }

            .btn-lg {
                padding: 0.7rem 1.6rem;
                font-size: 0.92rem;
            }

            .faq-question {
                font-size: 0.92rem;
                padding: 0.9rem 1.1rem;
            }

            .faq-answer {
                padding: 0 1.1rem 0.9rem;
                font-size: 0.88rem;
            }

            .logo {
                font-size: 1.1rem;
            }

            .logo i {
                font-size: 1.2rem;
            }

            .hot-post-item {
                padding: 0.75rem 1rem;
            }

            .hot-post-item .post-content h4 {
                font-size: 0.9rem;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }

        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }