/* roulang page: index */
:root {
            --bg-primary: #0D0D0F;
            --bg-secondary: #131316;
            --bg-tertiary: #18181C;
            --accent: #32E6C8;
            --accent-dim: rgba(50, 230, 200, 0.1);
            --accent-border: rgba(50, 230, 200, 0.2);
            --purple: #8B5CF6;
            --purple-dim: rgba(139, 92, 246, 0.15);
            --magenta: #F04E7E;
            --magenta-dim: rgba(240, 78, 126, 0.12);
            --text-primary: #F5F5F6;
            --text-secondary: #A1A1AA;
            --text-muted: #6B6B73;
            --border-subtle: rgba(50, 230, 200, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 0 24px rgba(50, 230, 200, 0.06), 0 4px 20px rgba(139, 92, 246, 0.05);
            --shadow-hover: 0 8px 32px rgba(50, 230, 200, 0.15), 0 4px 24px rgba(139, 92, 246, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.3s ease;
            --sidebar-width: 232px;
            --header-height: 56px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
            background: var(--bg-primary);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
            text-shadow: 0 0 8px rgba(50, 230, 200, 0.5);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ========== 布局容器 ========== */
        .layout-shell {
            display: flex;
            min-height: 100vh;
        }
        .main-wrapper {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
            display: flex;
            flex-direction: column;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ========== 左侧 App Shell 导航 ========== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-primary);
            border-right: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform var(--transition-base);
        }
        .sidebar-logo {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: #0D0D0F;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .sidebar-logo .logo-text span {
            color: var(--accent);
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 0 16px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 16px 20px 8px;
            font-weight: 600;
        }
        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav a.nav-link:hover {
            color: var(--accent);
            background: rgba(50, 230, 200, 0.05);
            border-left-color: var(--accent);
        }
        .sidebar-nav a.nav-link.active {
            color: var(--text-primary);
            background: rgba(50, 230, 200, 0.08);
            border-left-color: var(--accent);
        }
        .sidebar-nav a.nav-link .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .sidebar-footer a {
            color: var(--text-secondary);
            font-size: 12px;
        }
        .sidebar-footer a:hover {
            color: var(--accent);
        }

        /* ========== 移动端顶部栏 ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(13, 13, 15, 0.95);
            border-bottom: 1px solid rgba(50, 230, 200, 0.12);
            z-index: 1100;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
            backdrop-filter: blur(12px);
        }
        .mobile-topbar .hamburger {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            background: transparent;
        }
        .mobile-topbar .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .mobile-topbar .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-topbar .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-topbar .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .mobile-topbar .mobile-logo {
            font-size: 16px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }
        .mobile-topbar .mobile-logo span {
            color: var(--accent);
        }

        /* ========== 抽屉遮罩 ========== */
        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1050;
            opacity: 0;
            transition: opacity var(--transition-base);
            pointer-events: none;
        }
        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* ========== 通用板块样式 ========== */
        .section {
            padding: 64px 0;
            position: relative;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 720px;
        }
        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-dim);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            cursor: pointer;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--accent);
            color: #0D0D0F;
        }
        .btn-primary:hover {
            box-shadow: 0 0 16px rgba(50, 230, 200, 0.6);
            transform: translateY(-2px);
            color: #0D0D0F;
            text-shadow: none;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 8px rgba(50, 230, 200, 0.4);
        }
        .btn-secondary {
            background: transparent;
            color: var(--accent);
            border: 1px solid var(--accent-border);
        }
        .btn-secondary:hover {
            background: rgba(50, 230, 200, 0.08);
            border-color: var(--accent);
            color: var(--accent);
            text-shadow: none;
        }
        .btn-magenta {
            background: var(--magenta);
            color: #fff;
        }
        .btn-magenta:hover {
            box-shadow: 0 0 16px rgba(240, 78, 126, 0.5);
            transform: translateY(-2px);
            color: #fff;
            text-shadow: none;
        }
        .btn-sm {
            height: 36px;
            padding: 0 16px;
            font-size: 13px;
        }
        .btn-lg {
            height: 52px;
            padding: 0 32px;
            font-size: 16px;
        }

        /* ========== Hero 板块 ========== */
        .hero-section {
            min-height: 90vh;
            display: flex;
            align-items: center;
            position: relative;
            background: url('/assets/images/e5001b27492f9da2.webp') center/cover no-repeat;
            background-color: var(--bg-primary);
            padding: 80px 0;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(13, 13, 15, 0.78) 0%, rgba(13, 13, 15, 0.55) 55%, rgba(13, 13, 15, 0.72) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            top: -160px;
            right: -120px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.2) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }
        .hero-content h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero-content .hero-highlight {
            color: var(--accent);
        }
        .hero-desc {
            font-size: 16px;
            color: rgba(245, 245, 246, 0.85);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-indicators {
            display: flex;
            gap: 28px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .hero-indicator {
            text-align: left;
        }
        .hero-indicator .hi-value {
            font-size: 22px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-indicator .hi-label {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ========== 卖点三连（不对称布局） ========== */
        .selling-points {
            background: var(--bg-primary);
            padding: 72px 0;
        }
        .sp-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr;
            gap: 24px;
        }
        .sp-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sp-card:hover {
            border-color: rgba(50, 230, 200, 0.35);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .sp-card .sp-image {
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 16/8;
            background: var(--bg-tertiary);
        }
        .sp-card .sp-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .sp-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .sp-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .sp-card .sp-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== 场景演示（分镜式横向布局） ========== */
        .scene-demo {
            background: var(--bg-secondary);
            padding: 72px 0;
            overflow: hidden;
        }
        .scene-demo .scene-track {
            display: flex;
            gap: 0;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            background: var(--bg-primary);
        }
        .scene-panel {
            flex: 1;
            padding: 32px 28px;
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            gap: 16px;
            min-width: 0;
            transition: all var(--transition-base);
        }
        .scene-panel:last-child {
            border-right: none;
        }
        .scene-panel:hover {
            background: rgba(50, 230, 200, 0.04);
        }
        .scene-panel .scene-num {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .scene-panel h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .scene-panel p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
        }
        .scene-panel .scene-image {
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 16/7;
            background: var(--bg-tertiary);
            margin-top: auto;
        }
        .scene-panel .scene-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== 社会认同 ========== */
        .social-proof {
            background: var(--bg-primary);
            padding: 72px 0;
        }
        .social-proof .sp-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: start;
        }
        .testimonials {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .testimonial-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: all var(--transition-fast);
        }
        .testimonial-item:hover {
            border-color: rgba(50, 230, 200, 0.3);
        }
        .testimonial-item .t-author {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 6px;
        }
        .testimonial-item p {
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.8;
        }
        .rating-bar {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .rating-bar .rating-overall {
            display: flex;
            align-items: baseline;
            gap: 12px;
        }
        .rating-bar .rating-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }
        .rating-bar .rating-stars {
            color: #F5C542;
            font-size: 16px;
            letter-spacing: 3px;
        }
        .rating-bar .rating-label {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .rating-bar .rating-row {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .rating-bar .rating-row .bar-bg {
            flex: 1;
            height: 6px;
            background: var(--bg-tertiary);
            border-radius: 3px;
            overflow: hidden;
        }
        .rating-bar .rating-row .bar-fill {
            height: 100%;
            border-radius: 3px;
            background: var(--accent);
            transition: width var(--transition-base);
        }

        /* ========== 对比差异 ========== */
        .comparison {
            background: var(--bg-secondary);
            padding: 72px 0;
        }
        .comparison-table {
            display: grid;
            grid-template-columns: 0.8fr 1fr 1fr;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-primary);
        }
        .comparison-table .ct-cell {
            padding: 18px 20px;
            font-size: 14px;
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            line-height: 1.7;
        }
        .comparison-table .ct-cell:last-child {
            border-bottom: none;
        }
        .ct-header {
            background: var(--bg-tertiary);
            font-weight: 700;
            color: var(--text-primary);
            font-size: 15px;
        }
        .ct-header.ng28-head {
            background: rgba(50, 230, 200, 0.12);
            color: var(--accent);
        }
        .comparison-table .ct-dim {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .ct-check {
            color: var(--accent);
            font-weight: 700;
        }
        .ct-muted {
            color: var(--text-secondary);
        }
        .ct-highlight {
            color: var(--accent);
            font-weight: 600;
        }

        /* ========== 资讯证据 ========== */
        .news-evidence {
            background: var(--bg-primary);
            padding: 72px 0;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-item {
            display: flex;
            gap: 20px;
            align-items: center;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 18px 24px;
            transition: all var(--transition-fast);
        }
        .news-item:hover {
            border-color: rgba(50, 230, 200, 0.3);
            box-shadow: var(--shadow-card);
        }
        .news-item .news-date {
            min-width: 90px;
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            flex-shrink: 0;
        }
        .news-item .news-body {
            flex: 1;
        }
        .news-item .news-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 4px;
        }
        .news-item .news-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .news-item .news-link {
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
        }
        .see-more-link {
            display: inline-block;
            margin-top: 20px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
        }

        /* ========== FAQ 手风琴 ========== */
        .faq-section {
            background: var(--bg-secondary);
            padding: 72px 0;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }
        .faq-item {
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item.active {
            border-color: rgba(50, 230, 200, 0.4);
            background: #151518;
        }
        .faq-question {
            display: flex;
            gap: 14px;
            align-items: center;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            user-select: none;
            transition: all var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question .faq-symbol {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--accent);
            transition: transform var(--transition-fast);
        }
        .faq-item.active .faq-question .faq-symbol {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 24px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            padding-bottom: 12px;
        }

        /* ========== 保障条 ========== */
        .guarantee-bar {
            background: var(--bg-primary);
            padding: 36px 0;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .guarantee-grid {
            display: flex;
            gap: 32px;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .guarantee-item .gi-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: var(--accent);
            flex-shrink: 0;
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro {
            background: var(--bg-secondary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .brand-intro::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .brand-intro .intro-panel {
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            max-width: 900px;
            position: relative;
            z-index: 1;
        }
        .brand-intro .intro-panel p {
            font-size: 16px;
            color: var(--text-primary);
            line-height: 2.0;
            margin-bottom: 16px;
        }
        .brand-intro .intro-panel p:last-child {
            margin-bottom: 0;
        }

        /* ========== 数据统计 ========== */
        .stats-section {
            background: var(--bg-primary);
            padding: 72px 0;
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(50, 230, 200, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }
        .stat-block {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .stat-block:hover {
            border-color: rgba(50, 230, 200, 0.35);
            box-shadow: var(--shadow-card);
        }
        .stat-block .stat-num {
            font-size: 34px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .stat-block .stat-label {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 6px;
            letter-spacing: 0.5px;
        }

        /* ========== 专题入口板块 ========== */
        .topics-entry {
            background: var(--bg-secondary);
            padding: 72px 0;
        }
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: all var(--transition-base);
            text-decoration: none;
            color: inherit;
        }
        .topic-card:hover {
            border-color: rgba(50, 230, 200, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .topic-card .topic-image {
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 16/8;
            background: var(--bg-tertiary);
        }
        .topic-card .topic-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .topic-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .topic-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 最新攻略/资讯板块 ========== */
        .latest-updates {
            background: var(--bg-primary);
            padding: 72px 0;
        }
        .latest-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .latest-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            display: flex;
            gap: 16px;
            padding: 16px;
        }
        .latest-card:hover {
            border-color: rgba(50, 230, 200, 0.3);
            box-shadow: var(--shadow-card);
        }
        .latest-card .lc-image {
            width: 120px;
            min-width: 120px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--bg-tertiary);
        }
        .latest-card .lc-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .latest-card .lc-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .latest-card .lc-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
        }
        .latest-card .lc-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .latest-card .lc-body .lc-date {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== 社区互动板块 ========== */
        .community-feed {
            background: var(--bg-secondary);
            padding: 72px 0;
        }
        .feed-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 780px;
        }
        .feed-post {
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: all var(--transition-fast);
        }
        .feed-post:hover {
            border-color: rgba(50, 230, 200, 0.3);
        }
        .feed-post .fp-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--purple-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--purple);
            flex-shrink: 0;
            font-weight: 700;
        }
        .feed-post .fp-body {
            flex: 1;
        }
        .feed-post .fp-author {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 4px;
        }
        .feed-post .fp-text {
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.8;
        }
        .feed-post .fp-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
            display: flex;
            gap: 16px;
        }

        /* ========== 快速开始 ========== */
        .quick-start {
            background: var(--bg-primary);
            padding: 72px 0;
        }
        .qs-timeline {
            display: flex;
            gap: 20px;
            position: relative;
            flex-wrap: wrap;
        }
        .qs-step {
            flex: 1;
            min-width: 180px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            position: relative;
            transition: all var(--transition-fast);
        }
        .qs-step:hover {
            border-color: rgba(50, 230, 200, 0.35);
            box-shadow: var(--shadow-card);
        }
        .qs-step .qs-num {
            font-size: 13px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: block;
        }
        .qs-step h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .qs-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 下载/接入板块 ========== */
        .download-section {
            background: var(--bg-secondary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .download-section::after {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .download-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            position: relative;
            z-index: 1;
        }
        .download-card {
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .download-card:hover {
            border-color: rgba(50, 230, 200, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .download-card .dc-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin: 0 auto 16px;
            color: var(--accent);
        }
        .download-card h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .download-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        /* ========== 订阅CTA板块 ========== */
        .subscribe-section {
            background: var(--bg-primary);
            padding: 72px 0;
        }
        .subscribe-panel {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            gap: 32px;
            align-items: center;
            flex-wrap: wrap;
            max-width: 860px;
            margin: 0 auto;
        }
        .subscribe-panel .sub-text {
            flex: 1;
            min-width: 240px;
        }
        .subscribe-panel .sub-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .subscribe-panel .sub-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex: 1;
            min-width: 260px;
        }
        .subscribe-form input {
            flex: 1;
            height: 44px;
            padding: 0 16px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            background: var(--bg-primary);
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition-fast);
            min-width: 0;
        }
        .subscribe-form input::placeholder {
            color: var(--text-muted);
        }
        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 8px rgba(50, 230, 200, 0.25);
            outline: none;
        }

        /* ========== 底部固定转化条 ========== */
        .floating-cta {
            position: fixed;
            bottom: 20px;
            right: 20px;
            width: 320px;
            background: var(--bg-secondary);
            border: 1px solid rgba(50, 230, 200, 0.3);
            border-radius: var(--radius-md);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
            padding: 16px 18px;
            z-index: 900;
            display: flex;
            gap: 12px;
            align-items: center;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .floating-cta.hidden {
            transform: translateY(120%);
            opacity: 0;
            pointer-events: none;
        }
        .floating-cta .fc-text {
            flex: 1;
            font-size: 13px;
            color: var(--text-primary);
            line-height: 1.5;
            font-weight: 500;
        }
        .floating-cta .fc-close {
            position: absolute;
            top: -8px;
            right: -8px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--magenta);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 2px solid var(--bg-primary);
        }
        .floating-cta .fc-close:hover {
            background: #d13a6a;
            transform: scale(1.1);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            padding: 48px 0 32px;
            margin-top: auto;
        }
        .footer-top {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-bottom: 32px;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(50, 230, 200, 0.06);
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 13px;
        }
        .footer-links a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-meta {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
            align-items: center;
        }
        .footer-meta a {
            color: var(--text-secondary);
            font-size: 12px;
        }
        .footer-meta a:hover {
            color: var(--accent);
        }
        .footer-separator {
            color: var(--text-muted);
            opacity: 0.5;
        }

        /* ========== 响应式断点 ========== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .download-cards {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .comparison-table {
                grid-template-columns: 1fr;
            }
            .comparison-table .ct-cell {
                padding: 14px 18px;
                font-size: 13px;
            }
            .sp-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .sp-card:first-child {
                grid-column: span 2;
            }
            .scene-track {
                flex-direction: column;
            }
            .scene-panel {
                border-right: none;
                border-bottom: 1px solid var(--border-subtle);
            }
            .scene-panel:last-child {
                border-bottom: none;
            }
            .latest-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .app-sidebar {
                transform: translateX(-100%);
                top: var(--header-height);
                height: calc(100vh - var(--header-height));
                width: 260px;
            }
            .app-sidebar.open {
                transform: translateX(0);
            }
            .mobile-topbar {
                display: flex;
            }
            .drawer-overlay {
                display: block;
            }
            .drawer-overlay.active {
                opacity: 1;
                pointer-events: auto;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: var(--header-height);
            }
            .container {
                padding: 0 20px;
            }
            .section {
                padding: 48px 0;
            }
            .hero-section {
                min-height: auto;
                padding: 64px 0;
            }
            .hero-content h1 {
                font-size: 28px;
                line-height: 1.4;
            }
            .hero-desc {
                font-size: 14px;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-indicators {
                gap: 16px;
                flex-wrap: wrap;
            }
            .hero-indicator .hi-value {
                font-size: 18px;
            }
            .section-title {
                font-size: 22px;
            }
            .sp-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .sp-card:first-child {
                grid-column: span 1;
            }
            .social-proof .sp-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-block .stat-num {
                font-size: 26px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .latest-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .latest-card {
                flex-direction: column;
            }
            .latest-card .lc-image {
                width: 100%;
                min-width: unset;
                aspect-ratio: 16/8;
            }
            .qs-timeline {
                flex-direction: column;
                gap: 12px;
            }
            .download-cards {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .subscribe-panel {
                flex-direction: column;
                gap: 20px;
                padding: 24px;
            }
            .subscribe-form {
                flex-direction: column;
                width: 100%;
            }
            .subscribe-form input {
                width: 100%;
                min-width: unset;
            }
            .subscribe-form .btn {
                width: 100%;
            }
            .floating-cta {
                bottom: 0;
                right: 0;
                left: 0;
                width: 100%;
                border-radius: 12px 12px 0 0;
                border-left: none;
                border-right: none;
                border-bottom: none;
                padding: 14px 18px;
            }
            .floating-cta .fc-close {
                top: -10px;
                right: 16px;
            }
            .brand-intro .intro-panel {
                padding: 28px 24px;
            }
            .brand-intro .intro-panel p {
                font-size: 14px;
            }
            .footer-top {
                flex-direction: column;
                gap: 16px;
            }
            .footer-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .guarantee-grid {
                gap: 16px;
                flex-direction: column;
            }
            .guarantee-item {
                font-size: 13px;
            }
            .news-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px 18px;
                align-items: flex-start;
            }
            .news-item .news-date {
                min-width: auto;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 18px;
            }
            .faq-answer {
                font-size: 13px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .hero-content h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 20px;
            }
            .section-subtitle {
                font-size: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-block .stat-num {
                font-size: 22px;
            }
            .stat-block .stat-label {
                font-size: 10px;
            }
            .comparison-table .ct-cell {
                padding: 12px 14px;
                font-size: 12px;
            }
            .topic-card {
                padding: 16px;
            }
            .feed-post {
                padding: 14px 16px;
            }
            .download-card {
                padding: 20px 16px;
            }
            .btn {
                height: 40px;
                padding: 0 18px;
                font-size: 14px;
            }
            .btn-lg {
                height: 48px;
                font-size: 15px;
            }
            .floating-cta {
                padding: 12px 14px;
            }
            .floating-cta .fc-text {
                font-size: 12px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0D0D0F;
            --bg-secondary: #131316;
            --bg-tertiary: #18181C;
            --accent: #32E6C8;
            --accent-dim: rgba(50, 230, 200, 0.08);
            --accent-border: rgba(50, 230, 200, 0.2);
            --purple: #8B5CF6;
            --purple-dim: rgba(139, 92, 246, 0.15);
            --magenta: #F04E7E;
            --magenta-dim: rgba(240, 78, 126, 0.12);
            --text-primary: #F5F5F6;
            --text-secondary: #A1A1AA;
            --text-muted: #6B6B73;
            --border-subtle: rgba(50, 230, 200, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 0 24px rgba(50, 230, 200, 0.06), 0 4px 20px rgba(139, 92, 246, 0.05);
            --shadow-hover: 0 8px 32px rgba(50, 230, 200, 0.15), 0 4px 24px rgba(139, 92, 246, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.3s ease;
            --sidebar-width: 232px;
            --header-height: 56px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
            background: var(--bg-primary);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-fast), text-shadow var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
            text-shadow: 0 0 8px rgba(50, 230, 200, 0.5);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .main-wrapper {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px;
        }
        /* ========== 侧边栏 ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--bg-primary);
            border-right: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
        }
        .sidebar-logo {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: #0D0D0F;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .sidebar-logo .logo-text span {
            color: var(--accent);
        }
        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 0 16px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 16px 20px 8px;
            font-weight: 600;
        }
        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav a.nav-link:hover {
            color: var(--accent);
            background: rgba(50, 230, 200, 0.05);
            border-left-color: var(--accent);
        }
        .sidebar-nav a.nav-link.active {
            color: var(--text-primary);
            background: rgba(50, 230, 200, 0.08);
            border-left-color: var(--accent);
        }
        .sidebar-nav a.nav-link .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .sidebar-footer a {
            color: var(--text-secondary);
            font-size: 12px;
        }
        .sidebar-footer a:hover {
            color: var(--accent);
        }
        /* ========== 移动端顶部栏 ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(13, 13, 15, 0.95);
            border-bottom: 1px solid rgba(50, 230, 200, 0.1);
            z-index: 2000;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
        }
        .mobile-topbar .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 16px;
            color: var(--text-primary);
        }
        .mobile-topbar .logo .logo-mark {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--accent), var(--purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 12px;
            color: #0D0D0F;
        }
        .mobile-topbar .logo span {
            color: var(--accent);
        }
        .hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .hamburger:hover {
            background: rgba(50, 230, 200, 0.08);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1999;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .drawer-overlay.visible {
            opacity: 1;
        }
        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 16px 0 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 700;
        }
        /* ========== 分类H1区 ========== */
        .cat-hero {
            position: relative;
            background: url('/assets/images/e5001b27492f9da2.webp') center/cover no-repeat;
            min-height: 240px;
            display: flex;
            align-items: flex-end;
            padding: 40px 0 28px;
            margin-bottom: 32px;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            overflow: hidden;
            border-bottom: 1px solid var(--accent-border);
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 13, 15, 0.55) 0%, rgba(13, 13, 15, 0.82) 60%, #0D0D0F 100%);
            z-index: 1;
        }
        .cat-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            background: linear-gradient(105deg, transparent 40%, rgba(139, 92, 246, 0.08) 60%, rgba(50, 230, 200, 0.04) 100%);
            z-index: 1;
            pointer-events: none;
        }
        .cat-hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .cat-hero h1 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .cat-hero h1 em {
            font-style: normal;
            color: var(--accent);
        }
        .cat-hero .subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.7;
        }
        /* ========== 板块通用 ========== */
        section {
            padding: 28px 0;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.3px;
            position: relative;
            padding-left: 16px;
            line-height: 1.5;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 22px;
            border-radius: 2px;
            background: linear-gradient(180deg, var(--accent), var(--purple));
        }
        .section-title .accent {
            color: var(--accent);
        }
        .section-sub {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 420px;
            line-height: 1.6;
        }
        /* ========== 行式列表卡片 ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-row {
            display: flex;
            gap: 20px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .news-row::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: transparent;
            transition: background var(--transition-fast);
        }
        .news-row:hover {
            border-color: var(--accent-border);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .news-row:hover::after {
            background: var(--accent);
        }
        .news-row .thumb {
            flex-shrink: 0;
            width: 220px;
            aspect-ratio: 16/9;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-tertiary);
        }
        .news-row .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .news-row:hover .thumb img {
            transform: scale(1.05);
        }
        .news-row .content {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .news-row .content .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .news-row .content .meta .badge {
            padding: 2px 10px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
            background: var(--accent-dim);
            color: var(--accent);
            border: 1px solid var(--accent-border);
        }
        .news-row .content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            transition: color var(--transition-fast);
        }
        .news-row:hover .content h3 {
            color: var(--accent);
        }
        .news-row .content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-row .content .tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: auto;
        }
        .news-row .content .tags span {
            font-size: 12px;
            padding: 2px 8px;
            border-radius: 4px;
            background: rgba(139, 92, 246, 0.1);
            color: #B49CF6;
            border: 1px solid rgba(139, 92, 246, 0.2);
        }
        /* ========== 分类说明 ========== */
        .cat-desc {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            position: relative;
            overflow: hidden;
        }
        .cat-desc::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cat-desc h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .cat-desc h2 .accent {
            color: var(--accent);
        }
        .cat-desc p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 780px;
        }
        /* ========== 精选板块 ========== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            position: relative;
        }
        .featured-card:hover {
            border-color: var(--accent-border);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .featured-card .thumb {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-tertiary);
        }
        .featured-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .featured-card:hover .thumb img {
            transform: scale(1.06);
        }
        .featured-card .content {
            padding: 20px;
        }
        .featured-card .content .badge {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 700;
            background: var(--magenta-dim);
            color: var(--magenta);
            border: 1px solid rgba(240, 78, 126, 0.25);
            margin-bottom: 10px;
        }
        .featured-card .content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.5;
            transition: color var(--transition-fast);
        }
        .featured-card:hover .content h3 {
            color: var(--accent);
        }
        .featured-card .content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        /* ========== 标签云 ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud .tag {
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-tertiary);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            cursor: default;
            user-select: none;
        }
        .tag-cloud .tag:hover {
            color: var(--accent);
            border-color: var(--accent-border);
            background: rgba(50, 230, 200, 0.06);
            box-shadow: 0 0 12px rgba(50, 230, 200, 0.1);
        }
        /* ========== 跨分类推荐 ========== */
        .cross-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .cross-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .cross-card:hover {
            border-color: var(--accent-border);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .cross-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            transition: color var(--transition-fast);
        }
        .cross-card:hover h4 {
            color: var(--accent);
        }
        .cross-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }
        .cross-card .arrow {
            font-size: 14px;
            color: var(--accent);
            font-weight: 700;
            transition: transform var(--transition-fast);
        }
        .cross-card:hover .arrow {
            transform: translateX(4px);
        }
        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--accent-border);
        }
        .faq-item.open {
            border-color: var(--accent-border);
            background: rgba(50, 230, 200, 0.04);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            user-select: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--accent);
            font-weight: 700;
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
            padding: 0 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 16px;
            padding-top: 0;
        }
        .faq-answer p {
            padding-bottom: 8px;
        }
        /* ========== CTA板块 ========== */
        .cta-panel {
            background: linear-gradient(135deg, rgba(50, 230, 200, 0.06) 0%, rgba(139, 92, 246, 0.06) 100%);
            border: 1px solid var(--accent-border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
        }
        .cta-panel h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .cta-panel h3 .accent {
            color: var(--accent);
        }
        .cta-panel p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 20px;
            line-height: 1.8;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent);
            color: #0D0D0F;
            border: 1px solid var(--accent);
        }
        .btn-primary:hover {
            box-shadow: 0 0 16px rgba(50, 230, 200, 0.6);
            transform: translateY(-2px);
            color: #0D0D0F;
            text-shadow: none;
        }
        .btn-outline {
            background: transparent;
            color: var(--accent);
            border: 1px solid var(--accent-border);
        }
        .btn-outline:hover {
            background: rgba(50, 230, 200, 0.08);
            box-shadow: 0 0 12px rgba(50, 230, 200, 0.25);
            transform: translateY(-2px);
            color: var(--accent);
            text-shadow: none;
        }
        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            padding: 24px 0 20px;
            margin-top: 40px;
        }
        .footer-top {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 16px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid rgba(50, 230, 200, 0.05);
        }
        .footer-meta a {
            color: var(--text-muted);
            font-size: 12px;
        }
        .footer-meta a:hover {
            color: var(--accent);
        }
        .footer-separator {
            color: var(--text-muted);
            opacity: 0.6;
        }
        /* ========== 底部固定转化条 ========== */
        .floating-cta {
            position: fixed;
            bottom: 96px;
            right: 24px;
            width: 320px;
            background: var(--bg-secondary);
            border: 1px solid var(--accent-border);
            border-radius: var(--radius-md);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 24px rgba(50, 230, 200, 0.1);
            z-index: 1500;
            padding: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .floating-cta.hidden {
            transform: translateY(120%);
            opacity: 0;
            pointer-events: none;
        }
        .floating-cta .text {
            flex: 1;
            font-size: 13px;
            color: var(--text-primary);
            font-weight: 500;
            line-height: 1.5;
        }
        .floating-cta .text .accent {
            color: var(--accent);
            font-weight: 700;
        }
        .floating-cta .close-btn {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            font-size: 16px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .floating-cta .close-btn:hover {
            background: rgba(240, 78, 126, 0.15);
            color: var(--magenta);
        }
        .floating-cta .btn {
            height: 36px;
            padding: 0 16px;
            font-size: 13px;
            flex-shrink: 0;
        }
        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .cross-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-row .thumb {
                width: 160px;
            }
            .container {
                padding: 0 24px;
            }
        }
        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform var(--transition-base);
                width: 260px;
                z-index: 2500;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .mobile-topbar {
                display: flex;
            }
            .drawer-overlay {
                display: block;
                pointer-events: none;
            }
            .drawer-overlay.visible {
                pointer-events: auto;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: var(--header-height);
            }
            .cat-hero {
                min-height: 180px;
                padding: 28px 0 20px;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .cat-hero h1 {
                font-size: 26px;
            }
            .cat-hero .subtitle {
                font-size: 14px;
            }
            .news-row {
                flex-direction: column;
                gap: 12px;
                padding: 12px;
            }
            .news-row .thumb {
                width: 100%;
                aspect-ratio: 16/9;
            }
            .cross-grid {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .floating-cta {
                position: fixed;
                bottom: 0;
                right: 0;
                left: 0;
                width: 100%;
                border-radius: var(--radius-md) var(--radius-md) 0 0;
                border-bottom: none;
                z-index: 1500;
                padding: 12px 16px;
                gap: 10px;
            }
            .floating-cta .text {
                font-size: 12px;
            }
            .floating-cta .btn {
                height: 34px;
                padding: 0 12px;
                font-size: 12px;
            }
            .container {
                padding: 0 16px;
            }
            section {
                padding: 20px 0;
            }
            .section-title {
                font-size: 19px;
            }
            .cat-desc {
                padding: 20px;
            }
            .cta-panel {
                padding: 24px 16px;
            }
            .footer-top {
                flex-direction: column;
                gap: 12px;
            }
            .footer-meta {
                font-size: 11px;
            }
        }
        @media (max-width: 480px) {
            .cat-hero h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 18px;
            }
            .news-row .content h3 {
                font-size: 15px;
            }
            .news-row .content p {
                font-size: 13px;
                -webkit-line-clamp: 3;
            }
            .featured-card .content h3 {
                font-size: 16px;
            }
            .floating-cta .text {
                font-size: 11px;
                line-height: 1.4;
            }
            .floating-cta .btn {
                padding: 0 10px;
                font-size: 11px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 13px;
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding-bottom: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0D0D0F;
            --bg-secondary: #131316;
            --bg-tertiary: #18181C;
            --accent: #32E6C8;
            --accent-dim: rgba(50, 230, 200, 0.1);
            --accent-border: rgba(50, 230, 200, 0.2);
            --purple: #8B5CF6;
            --purple-dim: rgba(139, 92, 246, 0.15);
            --magenta: #F04E7E;
            --magenta-dim: rgba(240, 78, 126, 0.12);
            --text-primary: #F5F5F6;
            --text-secondary: #A1A1AA;
            --text-muted: #6B6B73;
            --border-subtle: rgba(50, 230, 200, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 0 24px rgba(50, 230, 200, 0.06), 0 4px 20px rgba(139, 92, 246, 0.05);
            --shadow-hover: 0 8px 32px rgba(50, 230, 200, 0.15), 0 4px 24px rgba(139, 92, 246, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.3s ease;
            --sidebar-width: 232px;
            --header-height: 56px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
            background: var(--bg-primary);
            min-height: 100vh;
            overflow-x: hidden;
            background-image:
                radial-gradient(circle at 15% 15%, rgba(139, 92, 246, 0.04), transparent 40%),
                radial-gradient(circle at 85% 70%, rgba(50, 230, 200, 0.04), transparent 40%);
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-fast), text-shadow var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
            text-shadow: 0 0 8px rgba(50, 230, 200, 0.5);
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

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

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ========== 布局 ========== */
        .main-wrapper {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px;
        }

        main {
            flex: 1;
            padding-bottom: 60px;
        }

        /* ========== 侧边栏 ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--bg-primary);
            border-right: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
        }

        .sidebar-logo {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: #0D0D0F;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .sidebar-logo .logo-text span {
            color: var(--accent);
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 0 16px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 16px 20px 8px;
            font-weight: 600;
        }

        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a.nav-link:hover {
            color: var(--accent);
            background: rgba(50, 230, 200, 0.05);
            border-left-color: var(--accent);
        }

        .sidebar-nav a.nav-link.active {
            color: var(--text-primary);
            background: rgba(50, 230, 200, 0.08);
            border-left-color: var(--accent);
        }

        .sidebar-nav a.nav-link .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .sidebar-footer a {
            color: var(--text-secondary);
            font-size: 12px;
        }

        .sidebar-footer a:hover {
            color: var(--accent);
        }

        /* ========== 移动端顶部栏 ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(13, 13, 15, 0.95);
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
        }

        .mobile-topbar .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 16px;
            color: var(--text-primary);
        }

        .mobile-topbar .mobile-logo .logo-mark {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--accent), var(--purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 11px;
            color: #0D0D0F;
        }

        .mobile-topbar .mobile-logo span {
            color: var(--accent);
        }

        .hamburger-btn {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: rgba(50, 230, 200, 0.05);
            border-radius: 8px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }

        .hamburger-btn:hover {
            background: rgba(50, 230, 200, 0.1);
        }

        .hamburger-btn .bar {
            width: 18px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger-btn.active .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger-btn.active .bar:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.active .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== 移动端抽屉 ========== */
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            opacity: 0;
            visibility: hidden;
            transition: opacity var(--transition-base), visibility var(--transition-base);
        }

        .drawer-overlay.show {
            opacity: 1;
            visibility: visible;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 260px;
            background: var(--bg-primary);
            border-right: 1px solid rgba(50, 230, 200, 0.08);
            z-index: 1001;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

        .mobile-drawer.show {
            transform: translateX(0);
        }

        .mobile-drawer .sidebar-nav {
            padding-top: 8px;
        }

        .mobile-drawer .drawer-close {
            position: absolute;
            top: 12px;
            right: 12px;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(50, 230, 200, 0.08);
            border: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 16px;
            transition: all var(--transition-fast);
            z-index: 10;
        }

        .mobile-drawer .drawer-close:hover {
            background: rgba(50, 230, 200, 0.15);
            color: var(--accent);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: var(--accent);
            text-shadow: none;
        }

        .breadcrumb .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 14px;
        }

        .breadcrumb .breadcrumb-current {
            color: var(--accent);
            font-weight: 600;
        }

        /* ========== 分类H1区 ========== */
        .category-header {
            padding: 36px 0 24px;
            border-bottom: 1px solid var(--border-subtle);
            background:
                radial-gradient(ellipse at 70% 30%, rgba(139, 92, 246, 0.06), transparent 55%),
                radial-gradient(ellipse at 30% 70%, rgba(50, 230, 200, 0.04), transparent 45%);
        }

        .category-header h1 {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .category-header h1 .highlight {
            color: var(--accent);
        }

        .category-header .subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: 48px 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.3px;
            line-height: 1.4;
        }

        .section-header h2 .highlight {
            color: var(--accent);
        }

        .section-header .section-meta {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== 精选/置顶板块 ========== */
        .featured-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .featured-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--accent-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
            position: relative;
        }

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

        .featured-card .card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: 0;
        }

        .featured-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }

        .featured-card:hover .card-image img {
            transform: scale(1.04);
        }

        .featured-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--magenta);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .featured-card .card-body {
            padding: 20px 20px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

        .featured-card:hover .card-body h3 {
            color: var(--accent);
        }

        .featured-card .card-body .desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .featured-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .featured-card .card-meta .tag {
            background: var(--accent-dim);
            color: var(--accent);
            padding: 2px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
        }

        .featured-card .card-meta .date {
            margin-left: auto;
        }

        /* ========== 攻略列表主体 ========== */
        .guides-list-section {
            background: transparent;
        }

        .guides-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .guide-row {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .guide-row::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .guide-row:hover {
            border-color: var(--accent);
            background: var(--bg-tertiary);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }

        .guide-row:hover::before {
            opacity: 1;
        }

        .guide-row .guide-thumb {
            width: 140px;
            aspect-ratio: 16/9;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            border: 1px solid var(--border-subtle);
        }

        .guide-row .guide-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
            transition: transform var(--transition-base);
        }

        .guide-row:hover .guide-thumb img {
            transform: scale(1.05);
        }

        .guide-row .guide-content {
            flex: 1;
            min-width: 0;
        }

        .guide-row .guide-content h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 4px;
            transition: color var(--transition-fast);
        }

        .guide-row:hover .guide-content h3 {
            color: var(--accent);
        }

        .guide-row .guide-content .desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-row .guide-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
            flex-direction: column;
            align-items: flex-end;
            gap: 6px;
        }

        .guide-row .guide-meta .tag {
            background: var(--purple-dim);
            color: var(--purple);
            padding: 2px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            white-space: nowrap;
        }

        .guide-row .guide-meta .date {
            white-space: nowrap;
        }

        /* ========== 分类说明板块 ========== */
        .category-info-section {
            background:
                radial-gradient(circle at 20% 30%, rgba(50, 230, 200, 0.05), transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.06), transparent 45%),
                var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .category-info-panel {
            background: var(--bg-tertiary);
            border: 1px solid var(--accent-border);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            position: relative;
            overflow: hidden;
        }

        .category-info-panel::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 160px;
            height: 160px;
            background: rgba(50, 230, 200, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-info-panel::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 20%;
            width: 180px;
            height: 180px;
            background: rgba(139, 92, 246, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-info-panel h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            letter-spacing: 0.3px;
        }

        .category-info-panel h2 .highlight {
            color: var(--accent);
        }

        .category-info-panel p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            position: relative;
            z-index: 1;
            max-width: 880px;
        }

        /* ========== 标签云板块 ========== */
        .tags-section {
            background: transparent;
        }

        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .tags-cloud .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 20px;
            background: var(--bg-tertiary);
            border: 1px solid var(--accent-border);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            cursor: default;
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .tags-cloud .tag-chip:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-dim);
            box-shadow: 0 0 12px rgba(50, 230, 200, 0.2);
        }

        .tags-cloud .tag-chip .tag-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        /* ========== 跨分类推荐 ========== */
        .recommend-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .recommend-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }

        .recommend-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 18px;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
        }

        .recommend-item:hover {
            border-color: var(--accent);
            background: var(--bg-secondary);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .recommend-item .rec-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 18px;
            color: var(--accent);
        }

        .recommend-item .rec-info {
            flex: 1;
            min-width: 0;
        }

        .recommend-item .rec-info h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
            line-height: 1.4;
        }

        .recommend-item .rec-info p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .recommend-item .rec-arrow {
            color: var(--text-muted);
            font-size: 16px;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .recommend-item:hover .rec-arrow {
            color: var(--accent);
            transform: translateX(3px);
        }

        /* ========== FAQ板块 ========== */
        .faq-section {
            background: transparent;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }

        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(50, 230, 200, 0.35);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            list-style: none;
            transition: color var(--transition-fast);
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

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

        .faq-item summary .faq-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-dim);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
            margin-right: 10px;
        }

        .faq-item summary .faq-question-text {
            flex: 1;
        }

        .faq-item summary .faq-icon {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-item[open] summary {
            color: var(--accent);
        }

        .faq-item[open] {
            border-color: var(--accent);
            background: var(--bg-tertiary);
        }

        .faq-item .faq-answer {
            padding: 0 20px 18px 58px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== 分类CTA板块 ========== */
        .category-cta-section {
            background:
                radial-gradient(circle at 50% 50%, rgba(50, 230, 200, 0.07), transparent 70%),
                var(--bg-secondary);
            border-top: 1px solid var(--accent-border);
            border-bottom: 1px solid var(--accent-border);
        }

        .category-cta-panel {
            text-align: center;
            padding: 20px;
            max-width: 620px;
            margin: 0 auto;
        }

        .category-cta-panel h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .category-cta-panel h2 .highlight {
            color: var(--accent);
        }

        .category-cta-panel p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #0D0D0F;
            font-weight: 700;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            height: 44px;
            transition: all var(--transition-base);
            letter-spacing: 0.5px;
        }

        .btn-primary:hover {
            box-shadow: 0 0 16px rgba(50, 230, 200, 0.6);
            transform: translateY(-2px);
            color: #0D0D0F;
            text-shadow: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 8px rgba(50, 230, 200, 0.4);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-subtle);
            padding: 36px 0 28px;
            margin-top: auto;
        }

        .footer-top {
            margin-bottom: 20px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: center;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 13px;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
            text-shadow: none;
        }

        .footer-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
        }

        .footer-meta a {
            color: var(--text-muted);
            font-size: 12px;
            transition: color var(--transition-fast);
        }

        .footer-meta a:hover {
            color: var(--accent);
            text-shadow: none;
        }

        .footer-meta .footer-separator {
            color: var(--text-muted);
            opacity: 0.5;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }

            .featured-grid {
                gap: 18px;
            }

            .category-header h1 {
                font-size: 30px;
            }
        }

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

            .sidebar {
                display: none;
            }

            .mobile-topbar {
                display: flex;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: var(--header-height);
            }

            body {
                font-size: 15px;
                line-height: 1.8;
            }

            .container {
                padding: 0 16px;
            }

            .section {
                padding: 36px 0;
            }

            .category-header {
                padding: 24px 0 18px;
            }

            .category-header h1 {
                font-size: 26px;
                line-height: 1.35;
            }

            .category-header .subtitle {
                font-size: 14px;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .featured-card .card-body h3 {
                font-size: 16px;
            }

            .guide-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 14px 16px;
            }

            .guide-row .guide-thumb {
                width: 100%;
                aspect-ratio: 16/9;
            }

            .guide-row .guide-meta {
                flex-direction: row;
                align-items: center;
                gap: 10px;
                width: 100%;
                justify-content: space-between;
            }

            .guide-row .guide-meta .date {
                margin-left: 0;
            }

            .guide-row .guide-content .desc {
                font-size: 13px;
                -webkit-line-clamp: 3;
            }

            .category-info-panel {
                padding: 24px 20px;
            }

            .category-info-panel h2 {
                font-size: 20px;
            }

            .category-info-panel p {
                font-size: 14px;
            }

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

            .faq-item summary {
                font-size: 14px;
                padding: 14px 16px;
            }

            .faq-item .faq-answer {
                padding: 0 16px 16px 48px;
                font-size: 13px;
            }

            .category-cta-panel h2 {
                font-size: 20px;
            }

            .category-cta-panel p {
                font-size: 14px;
            }

            .btn-primary {
                width: 100%;
                height: 48px;
                font-size: 15px;
            }

            .footer-links {
                gap: 12px;
            }

            .footer-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

        @media (max-width: 480px) {
            body {
                font-size: 14px;
                line-height: 1.75;
            }

            .container {
                padding: 0 14px;
            }

            .category-header h1 {
                font-size: 23px;
            }

            .section-header h2 {
                font-size: 20px;
            }

            .featured-card .card-body {
                padding: 14px 14px 12px;
            }

            .featured-card .card-body .desc {
                font-size: 13px;
            }

            .guide-row {
                padding: 12px 14px;
            }

            .guide-row .guide-content h3 {
                font-size: 14px;
            }

            .guide-row .guide-content .desc {
                font-size: 12px;
            }

            .tags-cloud .tag-chip {
                font-size: 12px;
                padding: 6px 14px;
            }

            .recommend-item {
                padding: 12px 14px;
            }

            .btn-primary {
                height: 46px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0D0D0F;
            --bg-secondary: #131316;
            --bg-tertiary: #18181C;
            --accent: #32E6C8;
            --accent-dim: rgba(50, 230, 200, 0.1);
            --accent-border: rgba(50, 230, 200, 0.2);
            --purple: #8B5CF6;
            --purple-dim: rgba(139, 92, 246, 0.15);
            --magenta: #F04E7E;
            --magenta-dim: rgba(240, 78, 126, 0.12);
            --text-primary: #F5F5F6;
            --text-secondary: #A1A1AA;
            --text-muted: #6B6B73;
            --border-subtle: rgba(50, 230, 200, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 0 24px rgba(50, 230, 200, 0.06), 0 4px 20px rgba(139, 92, 246, 0.05);
            --shadow-hover: 0 8px 32px rgba(50, 230, 200, 0.15), 0 4px 24px rgba(139, 92, 246, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.3s ease;
            --sidebar-width: 232px;
            --header-height: 56px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
            background: var(--bg-primary);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--accent);
            text-shadow: 0 0 8px rgba(50, 230, 200, 0.5);
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

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

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .main-wrapper {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        /* 左侧侧边栏 */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--bg-secondary);
            border-right: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            flex-direction: column;
            z-index: 100;
        }

        .sidebar-logo {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: #0D0D0F;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .sidebar-logo .logo-text span {
            color: var(--accent);
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 0 16px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 16px 20px 8px;
            font-weight: 600;
        }

        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a.nav-link:hover {
            color: var(--accent);
            background: rgba(50, 230, 200, 0.05);
            border-left-color: var(--accent);
        }

        .sidebar-nav a.nav-link.active {
            color: var(--text-primary);
            background: rgba(50, 230, 200, 0.08);
            border-left-color: var(--accent);
        }

        .sidebar-nav a.nav-link .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .sidebar-footer a {
            color: var(--text-secondary);
            font-size: 12px;
        }

        .sidebar-footer a:hover {
            color: var(--accent);
        }

        /* 移动端顶部栏 */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(13, 13, 15, 0.95);
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }

        .mobile-topbar .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 800;
            color: var(--text-primary);
        }

        .mobile-topbar .mobile-logo span {
            color: var(--accent);
        }

        .mobile-topbar .hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: 8px;
            border: 1px solid var(--accent-border);
            background: rgba(50, 230, 200, 0.05);
        }

        .mobile-topbar .hamburger span {
            width: 18px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 98;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .mobile-drawer-overlay.open {
            opacity: 1;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: -260px;
            bottom: 0;
            width: 260px;
            background: var(--bg-secondary);
            border-right: 1px solid rgba(50, 230, 200, 0.08);
            z-index: 99;
            transition: left var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .mobile-drawer.open {
            left: 0;
        }

        .mobile-drawer .sidebar-nav {
            flex: 1;
            padding-top: 70px;
        }

        /* 面包屑 */
        .breadcrumb {
            padding: 28px 0 0;
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: var(--accent);
            text-shadow: none;
        }

        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* 分类H1区 */
        .category-hero {
            padding: 36px 0 28px;
            border-bottom: 1px solid var(--border-subtle);
            margin-bottom: 40px;
            position: relative;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 80px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--purple));
            border-radius: 2px;
        }

        .category-hero h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .category-hero h1 span {
            color: var(--accent);
        }

        .category-hero .cat-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
        }

        /* 主体内容卡片区 */
        .content-section {
            margin-bottom: 56px;
        }

        .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-heading h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.3px;
            position: relative;
            padding-left: 16px;
        }

        .section-heading h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 22px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-heading .heading-tag {
            font-size: 12px;
            color: var(--text-muted);
            background: var(--bg-tertiary);
            padding: 4px 12px;
            border-radius: 20px;
            border: 1px solid var(--border-subtle);
        }

        .card-grid-community {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .community-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .community-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .community-card .card-cover {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-tertiary);
        }

        .community-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .community-card:hover .card-cover img {
            transform: scale(1.04);
        }

        .community-card .card-body {
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .community-card .card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.5;
            transition: color var(--transition-fast);
        }

        .community-card:hover .card-body h3 {
            color: var(--accent);
        }

        .community-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
        }

        .community-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .community-card .card-meta .badge {
            background: var(--accent-dim);
            color: var(--accent);
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
            border: 1px solid var(--accent-border);
        }

        .community-card .card-meta .badge.purple {
            background: var(--purple-dim);
            color: var(--purple);
            border-color: rgba(139, 92, 246, 0.3);
        }

        /* 分类说明板块 */
        .cat-description-section {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            margin-bottom: 56px;
            position: relative;
            overflow: hidden;
        }

        .cat-description-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cat-description-section h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .cat-description-section p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.95;
        }

        /* 精选/置顶板块 */
        .featured-section {
            margin-bottom: 56px;
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .featured-item {
            background: var(--bg-tertiary);
            border: 1px solid var(--accent-border);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .featured-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--purple));
            border-radius: 2px 2px 0 0;
        }

        .featured-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
        }

        .featured-item .featured-tag {
            display: inline-block;
            background: var(--accent-dim);
            color: var(--accent);
            font-size: 11px;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            border: 1px solid var(--accent-border);
        }

        .featured-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .featured-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* 标签区 */
        .tag-section {
            margin-bottom: 56px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud .tag {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-subtle);
            border-radius: 20px;
            padding: 8px 18px;
            font-size: 13px;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            cursor: default;
        }

        .tag-cloud .tag:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-dim);
        }

        .tag-cloud .tag.hot {
            background: var(--magenta-dim);
            border-color: rgba(240, 78, 126, 0.3);
            color: var(--magenta);
        }

        /* 跨分类推荐 */
        .recommend-section {
            margin-bottom: 56px;
        }

        .recommend-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .recommend-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            transition: all var(--transition-fast);
        }

        .recommend-item:hover {
            border-color: var(--accent);
            background: rgba(50, 230, 200, 0.04);
        }

        .recommend-item .rec-num {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--accent-dim);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .recommend-item .rec-text {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: color var(--transition-fast);
        }

        .recommend-item:hover .rec-text {
            color: var(--accent);
        }

        /* CTA区 */
        .cat-cta-section {
            background: var(--bg-secondary);
            border: 1px solid var(--accent-border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            text-align: center;
            margin-bottom: 56px;
            position: relative;
            overflow: hidden;
        }

        .cat-cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.1), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cat-cta-section h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
        }

        .cat-cta-section p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.8;
            position: relative;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 32px;
            background: var(--accent);
            color: #0D0D0F;
            font-weight: 700;
            font-size: 15px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            box-shadow: 0 0 16px rgba(50, 230, 200, 0.6);
            transform: translateY(-2px);
            color: #0D0D0F;
            text-shadow: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 8px rgba(50, 230, 200, 0.4);
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 32px 0 24px;
            margin-top: auto;
        }

        .footer-top {
            margin-bottom: 20px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 13px;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
            text-shadow: none;
        }

        .footer-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
        }

        .footer-meta a {
            color: var(--text-secondary);
            font-size: 12px;
        }

        .footer-meta a:hover {
            color: var(--accent);
            text-shadow: none;
        }

        .footer-separator {
            color: var(--text-muted);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: var(--header-height);
            }

            .mobile-topbar {
                display: flex;
            }

            .mobile-drawer-overlay,
            .mobile-drawer {
                display: flex;
                flex-direction: column;
            }

            .container {
                padding: 0 24px;
            }

            .card-grid-community {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

            .category-hero h1 {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }

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

            .category-hero {
                padding: 24px 0 20px;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .cat-description-section {
                padding: 20px;
            }

            .cat-cta-section {
                padding: 26px 20px;
            }

            .cat-cta-section h2 {
                font-size: 20px;
            }

            .section-heading h2 {
                font-size: 20px;
            }

            .footer-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .footer-links {
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }

            .category-hero h1 {
                font-size: 20px;
            }

            .business-card h3 {
                font-size: 16px;
            }

            .btn-primary {
                width: 100%;
                height: 40px;
                font-size: 14px;
            }

            .cat-cta-section h2 {
                font-size: 18px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0D0D0F;
            --bg-secondary: #131316;
            --bg-tertiary: #18181C;
            --accent: #32E6C8;
            --accent-dim: rgba(50, 230, 200, 0.1);
            --accent-border: rgba(50, 230, 200, 0.2);
            --purple: #8B5CF6;
            --purple-dim: rgba(139, 92, 246, 0.15);
            --magenta: #F04E7E;
            --magenta-dim: rgba(240, 78, 126, 0.12);
            --text-primary: #F5F5F6;
            --text-secondary: #A1A1AA;
            --text-muted: #6B6B73;
            --border-subtle: rgba(50, 230, 200, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 0 24px rgba(50, 230, 200, 0.06), 0 4px 20px rgba(139, 92, 246, 0.05);
            --shadow-hover: 0 8px 32px rgba(50, 230, 200, 0.15), 0 4px 24px rgba(139, 92, 246, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.3s ease;
            --sidebar-width: 232px;
            --header-height: 56px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
            background: var(--bg-primary);
            min-height: 100vh;
            overflow-x: hidden;
            display: flex;
        }

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

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

        a:hover {
            color: var(--accent);
            text-shadow: 0 0 8px rgba(50, 230, 200, 0.5);
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

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

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ========== 左侧 App Shell 导航 ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--bg-primary);
            border-right: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            flex-shrink: 0;
        }

        .sidebar-logo {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: #0D0D0F;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .sidebar-logo .logo-text span {
            color: var(--accent);
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 0 16px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 16px 20px 8px;
            font-weight: 600;
        }

        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a.nav-link:hover {
            color: var(--accent);
            background: rgba(50, 230, 200, 0.05);
            border-left-color: var(--accent);
        }

        .sidebar-nav a.nav-link.active {
            color: var(--text-primary);
            background: rgba(50, 230, 200, 0.08);
            border-left-color: var(--accent);
        }

        .sidebar-nav a.nav-link .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .sidebar-footer a {
            color: var(--text-secondary);
            font-size: 12px;
        }

        .sidebar-footer a:hover {
            color: var(--accent);
        }

        /* ========== 主内容区 ========== */
        .main-wrapper {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
            display: flex;
            flex-direction: column;
            background: var(--bg-primary);
            position: relative;
        }

        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        /* ========== 移动端顶部栏 ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(13, 13, 15, 0.95);
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }

        .mobile-topbar .logo-text {
            font-size: 16px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .mobile-topbar .logo-text span {
            color: var(--accent);
        }

        .hamburger-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border: 1px solid rgba(50, 230, 200, 0.2);
            background: rgba(50, 230, 200, 0.05);
            transition: all var(--transition-fast);
        }

        .hamburger-btn:hover {
            border-color: var(--accent);
            background: rgba(50, 230, 200, 0.1);
        }

        .hamburger-btn span {
            width: 18px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .drawer-overlay.visible {
            opacity: 1;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: var(--accent);
            text-shadow: none;
        }

        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 12px;
        }

        .breadcrumb .current {
            font-weight: 700;
            color: var(--accent);
        }

        /* ========== 分类H1区 ========== */
        .category-hero {
            padding: 56px 0 40px;
            position: relative;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.06) 0%, rgba(50, 230, 200, 0.04) 50%, transparent 100%);
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: 20%;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .category-hero h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .category-hero h1 .accent-text {
            color: var(--accent);
        }

        .category-hero .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }

        /* ========== 通用板块样式 ========== */
        .section {
            padding: 48px 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(50, 230, 200, 0.06);
            border-bottom: 1px solid rgba(50, 230, 200, 0.06);
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .section-header .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.7;
        }

        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.8px;
            color: var(--accent);
            text-transform: uppercase;
            background: rgba(50, 230, 200, 0.08);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            border: 1px solid rgba(50, 230, 200, 0.15);
        }

        /* ========== 评测列表卡片主体 ========== */
        .review-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .review-card {
            display: flex;
            gap: 20px;
            background: var(--bg-tertiary);
            border: 1px solid rgba(50, 230, 200, 0.1);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .review-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent), var(--purple));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .review-card:hover {
            border-color: var(--accent-border);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .review-card:hover::before {
            opacity: 1;
        }

        .review-card .card-image {
            width: 200px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--bg-secondary);
        }

        .review-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .review-card:hover .card-image img {
            transform: scale(1.04);
        }

        .review-card .card-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
            min-width: 0;
        }

        .review-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.6;
            transition: color var(--transition-fast);
        }

        .review-card:hover .card-title {
            color: var(--accent);
        }

        .review-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .review-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: auto;
        }

        .review-card .card-tag {
            font-size: 12px;
            font-weight: 500;
            color: var(--accent);
            background: rgba(50, 230, 200, 0.08);
            padding: 3px 10px;
            border-radius: 4px;
            border: 1px solid rgba(50, 230, 200, 0.15);
        }

        .review-card .card-date {
            font-size: 13px;
            color: var(--text-muted);
        }

        .review-card .card-score {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 700;
            color: var(--magenta);
            background: rgba(240, 78, 126, 0.08);
            padding: 3px 10px;
            border-radius: 4px;
            border: 1px solid rgba(240, 78, 126, 0.15);
        }

        /* ========== 分类说明板块 ========== */
        .category-description {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.06) 0%, rgba(50, 230, 200, 0.03) 100%);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            border: 1px solid rgba(50, 230, 200, 0.1);
            position: relative;
            overflow: hidden;
        }

        .category-description::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-description h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .category-description p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 2;
            position: relative;
            z-index: 1;
        }

        .category-description p + p {
            margin-top: 12px;
        }

        /* ========== 精选/置顶板块 ========== */
        .featured-reviews {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .featured-card {
            background: var(--bg-tertiary);
            border: 1px solid rgba(139, 92, 246, 0.18);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            position: relative;
        }

        .featured-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--purple), var(--magenta));
            opacity: 0.9;
            z-index: 2;
        }

        .featured-card:hover {
            border-color: rgba(50, 230, 200, 0.35);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .featured-card .featured-image {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-secondary);
        }

        .featured-card .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .featured-card:hover .featured-image img {
            transform: scale(1.05);
        }

        .featured-card .featured-body {
            padding: 20px 24px 24px;
        }

        .featured-card .featured-badge {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #0D0D0F;
            background: var(--accent);
            padding: 3px 10px;
            border-radius: 4px;
            margin-bottom: 10px;
        }

        .featured-card .featured-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.6;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

        .featured-card:hover .featured-title {
            color: var(--accent);
        }

        .featured-card .featured-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ========== 标签/子话题板块 ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-tertiary);
            border: 1px solid rgba(50, 230, 200, 0.12);
            border-radius: 20px;
            transition: all var(--transition-fast);
            cursor: default;
        }

        .tag-item:hover {
            color: var(--accent);
            border-color: var(--accent-border);
            background: rgba(50, 230, 200, 0.05);
        }

        .tag-item .tag-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        /* ========== 跨分类推荐板块 ========== */
        .cross-recommend {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .cross-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            background: var(--bg-tertiary);
            border: 1px solid rgba(50, 230, 200, 0.08);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            transition: all var(--transition-fast);
        }

        .cross-item:hover {
            border-color: var(--accent-border);
            background: rgba(50, 230, 200, 0.04);
        }

        .cross-item .cross-icon {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: rgba(139, 92, 246, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
        }

        .cross-item .cross-info {
            flex: 1;
            min-width: 0;
        }

        .cross-item .cross-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            transition: color var(--transition-fast);
        }

        .cross-item:hover .cross-title {
            color: var(--accent);
        }

        .cross-item .cross-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
            margin-top: 2px;
        }

        /* ========== FAQ板块 ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-tertiary);
            border: 1px solid rgba(50, 230, 200, 0.1);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item.active {
            border-color: var(--accent-border);
            background: rgba(50, 230, 200, 0.03);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: color var(--transition-fast);
            width: 100%;
            text-align: left;
            background: none;
            border: none;
        }

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

        .faq-question .faq-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(50, 230, 200, 0.1);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .faq-question .faq-toggle-icon {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.active .faq-toggle-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-answer {
            padding: 0 20px 18px 64px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }

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

        /* ========== 分类CTA板块 ========== */
        .category-cta-section {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(50, 230, 200, 0.06) 50%, rgba(240, 78, 126, 0.04) 100%);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            text-align: center;
            border: 1px solid rgba(50, 230, 200, 0.12);
            position: relative;
            overflow: hidden;
        }

        .category-cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -20px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.07) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-cta-section h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .category-cta-section p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0 28px;
            height: 44px;
            font-size: 15px;
            font-weight: 700;
            color: #0D0D0F;
            background: var(--accent);
            border: none;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            box-shadow: 0 0 16px rgba(50, 230, 200, 0.6);
            transform: translateY(-2px);
            color: #0D0D0F;
            text-shadow: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 8px rgba(50, 230, 200, 0.3);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0 28px;
            height: 44px;
            font-size: 15px;
            font-weight: 600;
            color: var(--accent);
            background: transparent;
            border: 1px solid var(--accent-border);
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
        }

        .btn-secondary:hover {
            border-color: var(--accent);
            background: rgba(50, 230, 200, 0.06);
            box-shadow: 0 0 12px rgba(50, 230, 200, 0.2);
            color: var(--accent);
            text-shadow: none;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            padding: 32px 0;
            margin-top: auto;
        }

        .footer-top {
            display: flex;
            justify-content: center;
            margin-bottom: 20px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }

        .footer-links a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
            text-shadow: 0 0 6px rgba(50, 230, 200, 0.4);
        }

        .footer-meta {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }

        .footer-meta .footer-separator {
            color: var(--text-muted);
        }

        .footer-meta a {
            color: var(--text-secondary);
            font-size: 12px;
        }

        .footer-meta a:hover {
            color: var(--accent);
            text-shadow: none;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 200px;
            }
            .container {
                padding: 0 24px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .cross-recommend {
                grid-template-columns: repeat(2, 1fr);
            }
            .review-card .card-image {
                width: 160px;
            }
        }

        @media (max-width: 768px) {
            body {
                flex-direction: column;
                padding-top: var(--header-height);
            }
            .sidebar {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                bottom: 0;
                width: 260px;
                background: var(--bg-primary);
                border-right: 1px solid rgba(50, 230, 200, 0.1);
                z-index: 1001;
                transform: translateX(-100%);
                transition: transform var(--transition-base);
            }
            .sidebar.open {
                transform: translateX(0);
                display: flex;
            }
            .mobile-topbar {
                display: flex;
            }
            .drawer-overlay {
                display: block;
                pointer-events: none;
            }
            .drawer-overlay.visible {
                pointer-events: auto;
            }
            .main-wrapper {
                margin-left: 0;
                width: 100%;
            }
            .container {
                padding: 0 16px;
            }
            .category-hero {
                padding: 32px 0 28px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .category-hero .hero-subtitle {
                font-size: 14px;
            }
            .section {
                padding: 32px 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .review-card {
                flex-direction: column;
                gap: 12px;
                padding: 12px;
            }
            .review-card .card-image {
                width: 100%;
                aspect-ratio: 16/9;
            }
            .review-card .card-title {
                font-size: 15px;
            }
            .review-card .card-excerpt {
                font-size: 13px;
            }
            .featured-reviews {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .featured-card .featured-title {
                font-size: 16px;
            }
            .category-description {
                padding: 24px 20px;
            }
            .category-description h2 {
                font-size: 20px;
            }
            .category-description p {
                font-size: 14px;
            }
            .cross-recommend {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 16px 14px 52px;
                font-size: 13px;
            }
            .category-cta-section {
                padding: 28px 20px;
            }
            .category-cta-section h2 {
                font-size: 20px;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                height: 44px;
                font-size: 14px;
            }
            .footer-links {
                gap: 14px;
            }
            .footer-meta {
                flex-direction: column;
                gap: 6px;
            }
            .footer-meta .footer-separator {
                display: none;
            }
            .breadcrumb {
                font-size: 12px;
            }
        }

        @media (max-width: 480px) {
            .category-hero h1 {
                font-size: 22px;
                line-height: 1.5;
            }
            .section-header h2 {
                font-size: 20px;
            }
            .review-card .card-meta {
                gap: 6px;
            }
            .review-card .card-tag,
            .review-card .card-date,
            .review-card .card-score {
                font-size: 11px;
                padding: 2px 8px;
            }
            .tag-item {
                font-size: 12px;
                padding: 6px 12px;
            }
            .faq-question {
                padding: 12px 14px;
                font-size: 13px;
            }
            .faq-question .faq-number {
                width: 24px;
                height: 24px;
                font-size: 11px;
            }
            .faq-answer {
                padding: 0 14px 12px 44px;
                font-size: 12px;
            }
            .category-cta-section h2 {
                font-size: 18px;
            }
            .category-cta-section p {
                font-size: 13px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #0D0D0F;
            --bg-secondary: #131316;
            --bg-tertiary: #18181C;
            --accent: #32E6C8;
            --accent-dim: rgba(50, 230, 200, 0.1);
            --accent-border: rgba(50, 230, 200, 0.2);
            --purple: #8B5CF6;
            --purple-dim: rgba(139, 92, 246, 0.15);
            --magenta: #F04E7E;
            --magenta-dim: rgba(240, 78, 126, 0.12);
            --text-primary: #F5F5F6;
            --text-secondary: #A1A1AA;
            --text-muted: #6B6B73;
            --border-subtle: rgba(50, 230, 200, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 0 24px rgba(50, 230, 200, 0.06), 0 4px 20px rgba(139, 92, 246, 0.05);
            --shadow-hover: 0 8px 32px rgba(50, 230, 200, 0.15), 0 4px 24px rgba(139, 92, 246, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.3s ease;
            --sidebar-width: 232px;
            --header-height: 56px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
            background: var(--bg-primary);
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
        }

        body::before {
            content: '';
            position: fixed;
            top: -20%;
            right: -15%;
            width: 60vw;
            height: 60vw;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }
        body::after {
            content: '';
            position: fixed;
            bottom: -20%;
            left: -15%;
            width: 50vw;
            height: 50vw;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.05) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
            text-shadow: 0 0 8px rgba(50, 230, 200, 0.5);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .main-wrapper {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
            display: flex;
            flex-direction: column;
            position: relative;
            z-index: 1;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ========== 左侧导航 ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--bg-primary);
            border-right: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: transform var(--transition-base);
        }
        .sidebar-logo {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: #0D0D0F;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .sidebar-logo .logo-text span {
            color: var(--accent);
        }
        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 0 16px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 16px 20px 8px;
            font-weight: 600;
        }
        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav a.nav-link:hover {
            color: var(--accent);
            background: rgba(50, 230, 200, 0.05);
            border-left-color: var(--accent);
        }
        .sidebar-nav a.nav-link.active {
            color: var(--text-primary);
            background: rgba(50, 230, 200, 0.08);
            border-left-color: var(--accent);
        }
        .sidebar-nav a.nav-link .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .sidebar-footer a {
            color: var(--text-secondary);
            font-size: 12px;
        }
        .sidebar-footer a:hover {
            color: var(--accent);
        }

        /* ========== 移动端顶部栏 ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(13, 13, 15, 0.95);
            border-bottom: 1px solid rgba(50, 230, 200, 0.1);
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }
        .mobile-topbar .hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 22px;
            transition: background var(--transition-fast);
        }
        .mobile-topbar .hamburger:hover {
            background: rgba(50, 230, 200, 0.08);
        }
        .mobile-topbar .mobile-logo {
            font-size: 16px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }
        .mobile-topbar .mobile-logo span {
            color: var(--accent);
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 98;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .mobile-overlay.active {
            opacity: 1;
        }

        /* ========== 分类页特有样式 ========== */
        .page-header {
            padding: 48px 0 28px;
            position: relative;
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            background: linear-gradient(180deg, rgba(50, 230, 200, 0.04) 0%, transparent 100%);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--accent);
            text-shadow: none;
        }
        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }
        .page-header h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .page-header h1 .highlight {
            color: var(--accent);
        }
        .page-header .subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }

        /* ========== 精选置顶板块 ========== */
        .featured-section {
            padding: 40px 0 24px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1.2px;
            margin-bottom: 20px;
        }
        .section-label::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .featured-card {
            background: var(--bg-secondary);
            border: 1px solid var(--accent-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .featured-card .featured-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }
        .featured-card .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-card:hover .featured-image img {
            transform: scale(1.04);
        }
        .featured-card .featured-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--magenta);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            z-index: 2;
        }
        .featured-card .featured-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .featured-card .featured-body h2 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-primary);
            transition: color var(--transition-fast);
        }
        .featured-card:hover .featured-body h2 {
            color: var(--accent);
        }
        .featured-card .featured-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
        }
        .featured-card .featured-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .featured-card .featured-meta .tag {
            background: var(--purple-dim);
            color: var(--purple);
            padding: 2px 10px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 12px;
        }

        /* ========== 列表主体板块 ========== */
        .list-section {
            padding: 32px 0;
        }
        .topic-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .topic-row {
            display: flex;
            gap: 20px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: all var(--transition-base);
            position: relative;
        }
        .topic-row:hover {
            border-color: var(--accent-border);
            box-shadow: var(--shadow-card);
            transform: translateX(4px);
        }
        .topic-row .row-image {
            width: 200px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .topic-row .row-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .topic-row:hover .row-image img {
            transform: scale(1.05);
        }
        .topic-row .row-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
            min-width: 0;
        }
        .topic-row .row-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            transition: color var(--transition-fast);
        }
        .topic-row:hover .row-content h3 {
            color: var(--accent);
        }
        .topic-row .row-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
        }
        .topic-row .row-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .topic-row .row-meta .tag {
            background: var(--accent-dim);
            color: var(--accent);
            padding: 2px 10px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 12px;
        }
        .topic-row .row-arrow {
            position: absolute;
            right: 16px;
            bottom: 16px;
            font-size: 18px;
            color: var(--text-muted);
            transition: all var(--transition-fast);
        }
        .topic-row:hover .row-arrow {
            color: var(--accent);
            transform: translateX(4px);
        }

        /* ========== 分类说明板块 ========== */
        .about-section {
            padding: 40px 0;
        }
        .about-panel {
            background: var(--bg-tertiary);
            border: 1px solid var(--accent-border);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            position: relative;
            overflow: hidden;
        }
        .about-panel::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .about-panel::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .about-panel h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .about-panel p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 2.0;
            position: relative;
            z-index: 1;
            max-width: 850px;
        }

        /* ========== 标签云板块 ========== */
        .tags-section {
            padding: 32px 0;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .tag-cloud .tag-pill {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            padding: 8px 20px;
            border-radius: 24px;
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: default;
            user-select: none;
        }
        .tag-cloud .tag-pill:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(50, 230, 200, 0.06);
            box-shadow: 0 0 12px rgba(50, 230, 200, 0.15);
        }

        /* ========== 跨分类推荐板块 ========== */
        .cross-section {
            padding: 32px 0;
        }
        .cross-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .cross-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .cross-card:hover {
            border-color: var(--accent-border);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .cross-card .cross-cat {
            font-size: 12px;
            color: var(--purple);
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .cross-card h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.6;
            transition: color var(--transition-fast);
        }
        .cross-card:hover h3 {
            color: var(--accent);
        }
        .cross-card .cross-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== FAQ 板块 ========== */
        .faq-section {
            padding: 40px 0;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--accent-border);
        }
        .faq-item.active {
            border-color: var(--accent);
            background: var(--bg-tertiary);
            box-shadow: 0 0 20px rgba(50, 230, 200, 0.06);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            transition: color var(--transition-fast);
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.6;
        }
        .faq-question .faq-number {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 6px;
            background: var(--accent-dim);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
        }
        .faq-question .faq-icon {
            margin-left: auto;
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.9;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px 60px;
        }

        /* ========== 分类 CTA 板块 ========== */
        .cta-section {
            padding: 40px 0 56px;
        }
        .cta-panel {
            background: linear-gradient(135deg, rgba(50, 230, 200, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
            border: 1px solid var(--accent-border);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-panel h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-panel p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #0D0D0F;
            font-size: 15px;
            font-weight: 700;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            letter-spacing: 0.3px;
        }
        .btn-primary:hover {
            box-shadow: 0 0 16px rgba(50, 230, 200, 0.6);
            transform: translateY(-2px);
            color: #0D0D0F;
            text-shadow: none;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 8px rgba(50, 230, 200, 0.4);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            position: relative;
            z-index: 1;
            background: var(--bg-secondary);
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            padding: 32px 0 24px;
        }
        .footer-top {
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(50, 230, 200, 0.06);
            margin-bottom: 20px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent);
            text-shadow: none;
        }
        .footer-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
        }
        .footer-meta a {
            color: var(--text-secondary);
            font-size: 13px;
        }
        .footer-meta a:hover {
            color: var(--accent);
            text-shadow: none;
        }
        .footer-separator {
            color: var(--text-muted);
            opacity: 0.5;
        }

        /* ========== 响应式断点 ========== */
        @media (max-width: 1024px) {
            .cross-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-row .row-image {
                width: 160px;
            }
        }
        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: 260px;
                box-shadow: 8px 0 40px rgba(0, 0, 0, 0.5);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .mobile-topbar {
                display: flex;
            }
            .mobile-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-overlay.active {
                pointer-events: auto;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: var(--header-height);
            }
            .container {
                padding: 0 20px;
            }
            .page-header {
                padding: 32px 0 20px;
            }
            .page-header h1 {
                font-size: 28px;
            }
            .page-header .subtitle {
                font-size: 15px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .topic-row {
                flex-direction: column;
                gap: 12px;
                padding: 14px;
            }
            .topic-row .row-image {
                width: 100%;
                aspect-ratio: 16/9;
            }
            .topic-row .row-arrow {
                position: static;
                align-self: flex-end;
            }
            .about-panel {
                padding: 24px 20px;
            }
            .about-panel h2 {
                font-size: 20px;
            }
            .about-panel p {
                font-size: 14px;
                line-height: 1.9;
            }
            .cross-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 16px 48px;
                font-size: 14px;
            }
            .cta-panel {
                padding: 28px 20px;
            }
            .cta-panel h2 {
                font-size: 20px;
            }
            .btn-primary {
                width: 100%;
                padding: 12px 20px;
            }
            .footer-links {
                gap: 14px;
            }
            .footer-meta {
                font-size: 12px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .page-header h1 {
                font-size: 24px;
            }
            .featured-card .featured-body h2 {
                font-size: 17px;
            }
            .topic-row .row-content h3 {
                font-size: 16px;
            }
            .topic-row .row-summary {
                font-size: 13px;
            }
            .tag-cloud .tag-pill {
                font-size: 12px;
                padding: 6px 14px;
            }
            .cross-card h3 {
                font-size: 14px;
            }
            .faq-question .faq-number {
                width: 24px;
                height: 24px;
                font-size: 12px;
            }
            .faq-question {
                font-size: 14px;
                gap: 8px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-primary: #0D0D0F;
            --bg-secondary: #131316;
            --bg-tertiary: #18181C;
            --accent: #32E6C8;
            --accent-dim: rgba(50, 230, 200, 0.1);
            --accent-border: rgba(50, 230, 200, 0.2);
            --purple: #8B5CF6;
            --purple-dim: rgba(139, 92, 246, 0.15);
            --magenta: #F04E7E;
            --magenta-dim: rgba(240, 78, 126, 0.12);
            --text-primary: #F5F5F6;
            --text-secondary: #A1A1AA;
            --text-muted: #6B6B73;
            --border-subtle: rgba(50, 230, 200, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 0 24px rgba(50, 230, 200, 0.06), 0 4px 20px rgba(139, 92, 246, 0.05);
            --shadow-hover: 0 8px 32px rgba(50, 230, 200, 0.15), 0 4px 24px rgba(139, 92, 246, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.3s ease;
            --sidebar-width: 232px;
            --header-height: 56px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
            background: var(--bg-primary);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-fast), text-shadow var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
            text-shadow: 0 0 8px rgba(50, 230, 200, 0.5);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ========== 侧边栏 ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--bg-primary);
            border-right: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            flex-direction: column;
            z-index: 100;
        }
        .sidebar-logo {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: #0D0D0F;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .sidebar-logo .logo-text span {
            color: var(--accent);
        }
        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 0 16px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 16px 20px 8px;
            font-weight: 600;
        }
        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav a.nav-link:hover {
            color: var(--accent);
            background: rgba(50, 230, 200, 0.05);
            border-left-color: var(--accent);
        }
        .sidebar-nav a.nav-link.active {
            color: var(--text-primary);
            background: rgba(50, 230, 200, 0.08);
            border-left-color: var(--accent);
        }
        .sidebar-nav a.nav-link .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .sidebar-footer a {
            color: var(--text-secondary);
            font-size: 12px;
        }
        .sidebar-footer a:hover {
            color: var(--accent);
        }

        /* ========== 移动端顶部栏 ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(13, 13, 15, 0.95);
            border-bottom: 1px solid rgba(50, 230, 200, 0.12);
            z-index: 95;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }
        .mobile-topbar .burger {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--text-primary);
            transition: background var(--transition-fast);
        }
        .mobile-topbar .burger:hover {
            background: rgba(50, 230, 200, 0.08);
        }
        .mobile-topbar .mobile-logo-mark {
            width: 30px;
            height: 30px;
            border-radius: 7px;
            background: linear-gradient(135deg, var(--accent), var(--purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 12px;
            color: #0D0D0F;
            flex-shrink: 0;
        }
        .mobile-topbar .mobile-logo-text {
            font-size: 16px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }
        .mobile-topbar .mobile-logo-text span {
            color: var(--accent);
        }
        .mobile-drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 90;
            display: none;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .mobile-drawer-overlay.open {
            display: block;
            opacity: 1;
        }

        /* ========== 主内容区 ========== */
        .main-wrapper {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px;
        }
        main {
            flex: 1;
            padding-bottom: 60px;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            padding: 22px 0 0;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }

        /* ========== 分类 H1 区 ========== */
        .category-header {
            padding: 28px 0 36px;
            border-bottom: 1px solid rgba(50, 230, 200, 0.08);
            position: relative;
        }
        .category-header::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 80px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), transparent);
        }
        .category-header h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .category-header h1 .highlight {
            color: var(--accent);
        }
        .category-header .subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 18px;
        }
        .category-header .meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }
        .category-header .meta-line .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            background: var(--accent-dim);
            border: 1px solid var(--accent-border);
            color: var(--accent);
            font-weight: 500;
            font-size: 12px;
        }

        /* ========== 板块通用 ========== */
        .section-block {
            padding: 48px 0;
            border-bottom: 1px solid rgba(50, 230, 200, 0.06);
        }
        .section-block:last-child {
            border-bottom: none;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
        }
        .section-header h2 {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
        }
        .section-header h2 .accent {
            color: var(--accent);
        }
        .section-header .section-desc {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 420px;
            text-align: right;
        }

        /* ========== 列表卡片主体 ========== */
        .download-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .download-card {
            display: flex;
            gap: 20px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .download-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent), var(--purple));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .download-card:hover {
            border-color: var(--accent-border);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .download-card:hover::before {
            opacity: 1;
        }
        .download-card .card-thumb {
            width: 180px;
            flex-shrink: 0;
            border-radius: 10px;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--bg-tertiary);
        }
        .download-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .download-card .card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .download-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            transition: color var(--transition-fast);
        }
        .download-card:hover .card-title {
            color: var(--accent);
        }
        .download-card .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
            flex: 1;
        }
        .download-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            font-size: 12px;
            color: var(--text-muted);
        }
        .download-card .card-meta .tag {
            padding: 3px 10px;
            border-radius: 14px;
            background: var(--purple-dim);
            color: var(--purple);
            font-weight: 500;
            border: 1px solid rgba(139, 92, 246, 0.2);
        }
        .download-card .card-meta .date {
            margin-left: auto;
        }
        .download-card .card-link {
            position: absolute;
            inset: 0;
            z-index: 1;
        }

        /* ========== 分类说明板块 ========== */
        .category-info-block {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            padding: 44px 40px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            min-height: 220px;
            display: flex;
            align-items: center;
        }
        .category-info-block .info-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/e5001b27492f9da2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }
        .category-info-block .info-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 15, 0.92) 0%, rgba(13, 13, 15, 0.7) 60%, rgba(13, 13, 15, 0.5) 100%);
            z-index: 1;
        }
        .category-info-block .info-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .category-info-block h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .category-info-block h2 .accent {
            color: var(--accent);
        }
        .category-info-block p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 2;
            margin-bottom: 12px;
        }
        .category-info-block p:last-child {
            margin-bottom: 0;
        }

        /* ========== 精选置顶板块 ========== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--bg-tertiary);
            border: 1px solid rgba(139, 92, 246, 0.25);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .featured-card::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.2), transparent 70%);
            pointer-events: none;
        }
        .featured-card:hover {
            border-color: var(--purple);
            box-shadow: 0 12px 40px rgba(139, 92, 246, 0.2);
            transform: translateY(-3px);
        }
        .featured-card .featured-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 700;
            color: var(--magenta);
            background: var(--magenta-dim);
            padding: 4px 12px;
            border-radius: 14px;
            margin-bottom: 14px;
        }
        .featured-card .featured-thumb {
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 16px;
            aspect-ratio: 16/9;
            background: var(--bg-secondary);
        }
        .featured-card .featured-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .featured-card:hover h3 {
            color: var(--accent);
        }
        .featured-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .featured-card .featured-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            gap: 14px;
        }
        .featured-card .featured-link {
            position: absolute;
            inset: 0;
            z-index: 1;
        }

        /* ========== 标签云板块 ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .tag-cloud .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 24px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: default;
            user-select: none;
        }
        .tag-cloud .tag-pill:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(50, 230, 200, 0.06);
            box-shadow: 0 0 12px rgba(50, 230, 200, 0.15);
        }
        .tag-cloud .tag-pill .tag-count {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 22px;
            height: 22px;
            border-radius: 11px;
            background: var(--accent-dim);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            margin-left: 8px;
            padding: 0 6px;
        }

        /* ========== 跨分类推荐板块 ========== */
        .cross-recommend {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .cross-recommend .recommend-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            transition: all var(--transition-base);
            position: relative;
        }
        .cross-recommend .recommend-item:hover {
            border-color: var(--accent-border);
            box-shadow: var(--shadow-card);
            transform: translateX(4px);
        }
        .cross-recommend .recommend-icon {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: var(--purple-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--purple);
            font-size: 18px;
            flex-shrink: 0;
        }
        .cross-recommend .recommend-text {
            flex: 1;
        }
        .cross-recommend .recommend-text .title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            margin-bottom: 2px;
        }
        .cross-recommend .recommend-item:hover .title {
            color: var(--accent);
        }
        .cross-recommend .recommend-text .desc {
            font-size: 13px;
            color: var(--text-muted);
        }
        .cross-recommend .recommend-link {
            position: absolute;
            inset: 0;
            z-index: 1;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 860px;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .faq-item.open {
            border-color: var(--accent-border);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question .faq-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--accent-dim);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .faq-question .faq-icon {
            margin-left: auto;
            font-size: 20px;
            color: var(--text-muted);
            transition: transform var(--transition-base), color var(--transition-base);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 20px 62px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
        }

        /* ========== 分类 CTA 板块 ========== */
        .category-cta-block {
            background: var(--bg-tertiary);
            border: 1px solid rgba(50, 230, 200, 0.15);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            position: relative;
            overflow: hidden;
        }
        .category-cta-block::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(50, 230, 200, 0.15), transparent 70%);
            pointer-events: none;
        }
        .category-cta-block .cta-text {
            position: relative;
            z-index: 1;
        }
        .category-cta-block h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .category-cta-block h3 .accent {
            color: var(--accent);
        }
        .category-cta-block p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 520px;
        }
        .category-cta-block .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent);
            color: #0D0D0F;
            border: 1px solid var(--accent);
        }
        .btn-primary:hover {
            box-shadow: 0 0 16px rgba(50, 230, 200, 0.6);
            transform: translateY(-2px);
            color: #0D0D0F;
        }
        .btn-outline {
            background: transparent;
            color: var(--accent);
            border: 1px solid var(--accent-border);
        }
        .btn-outline:hover {
            background: rgba(50, 230, 200, 0.06);
            box-shadow: 0 0 12px rgba(50, 230, 200, 0.2);
            transform: translateY(-2px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid rgba(50, 230, 200, 0.08);
            padding: 36px 0 28px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .site-footer .footer-top {
            margin-bottom: 20px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }
        .site-footer .footer-links a {
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
        }
        .site-footer .footer-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            font-size: 12px;
            color: var(--text-muted);
        }
        .site-footer .footer-meta a {
            color: var(--text-secondary);
        }
        .site-footer .footer-meta a:hover {
            color: var(--accent);
        }
        .site-footer .footer-meta .footer-separator {
            color: rgba(50, 230, 200, 0.2);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
            .featured-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cross-recommend {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform var(--transition-base);
                z-index: 92;
                width: 260px;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: 12px 0 40px rgba(0, 0, 0, 0.5);
            }
            .mobile-topbar {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: var(--header-height);
            }
            .container {
                padding: 0 16px;
            }
            .category-header h1 {
                font-size: 28px;
            }
            .category-header .subtitle {
                font-size: 15px;
            }
            .section-block {
                padding: 32px 0;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section-header .section-desc {
                text-align: left;
                max-width: 100%;
            }
            .download-card {
                flex-direction: column;
                gap: 14px;
                padding: 14px;
            }
            .download-card .card-thumb {
                width: 100%;
                aspect-ratio: 16/9;
            }
            .download-card .card-meta .date {
                margin-left: 0;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cross-recommend {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .category-info-block {
                padding: 28px 20px;
            }
            .category-cta-block {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 20px;
            }
            .category-cta-block .cta-actions {
                width: 100%;
                flex-direction: column;
            }
            .btn {
                width: 100%;
            }
            .faq-answer {
                max-height: 0;
            }
            .faq-item.open .faq-answer {
                max-height: 400px;
                padding: 0 16px 16px 52px;
            }
            .site-footer .footer-links {
                gap: 14px;
            }
        }
        @media (max-width: 480px) {
            .category-header h1 {
                font-size: 24px;
            }
            .category-header .subtitle {
                font-size: 14px;
            }
            .section-header h2 {
                font-size: 21px;
            }
            .download-card .card-title {
                font-size: 16px;
            }
            .featured-card h3 {
                font-size: 17px;
            }
            .category-info-block h2 {
                font-size: 20px;
            }
            .category-cta-block h3 {
                font-size: 19px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px;
            }
            .faq-question .faq-number {
                width: 24px;
                height: 24px;
                font-size: 12px;
            }
            .faq-item.open .faq-answer {
                max-height: 500px;
                padding: 0 14px 14px 48px;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .tag-cloud .tag-pill {
                font-size: 13px;
                padding: 6px 14px;
            }
        }