/* roulang page: index */
/* 设计变量 */
    :root {
      --bg-body: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0B0E14;
      --bg-dark-card: rgba(11,14,20,0.9);
      --primary: #A855F7;
      --primary-hover: #9333EA;
      --accent-orange: #F97316;
      --accent-cyan: #22D3EE;
      --text-primary: #1E293B;
      --text-secondary: #64748B;
      --text-light: #94A3B8;
      --border-light: #E2E8F0;
      --radius-sm: 4px;
      --radius-md: 8px;
      --shadow-card: 0 4px 12px rgba(0,0,0,0.04);
      --shadow-hover: 0 8px 24px rgba(168,85,247,0.08);
      --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      --font-mono: "Roboto Mono", "SF Mono", "Consolas", monospace;
      --nav-width: 240px;
      --transition-base: 0.2s ease;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: var(--font-sans);
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-primary);
      background-color: var(--bg-body);
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { text-decoration: none; color: inherit; transition: color var(--transition-base); }
    button { cursor: pointer; font-family: inherit; }
    ul, ol { list-style: none; }
    /* 导航栏 */
    .sidebar-nav {
      position: fixed;
      left: 0; top: 0; bottom: 0;
      width: var(--nav-width);
      background-color: var(--bg-dark);
      display: flex;
      flex-direction: column;
      z-index: 1000;
      box-shadow: 2px 0 12px rgba(0,0,0,0.06);
    }
    .sidebar-nav .logo-area {
      padding: 28px 24px 20px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .sidebar-nav .logo-text {
      font-size: 22px;
      font-weight: 800;
      color: #fff;
      letter-spacing: 1px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .sidebar-nav .logo-underline {
      width: 32px;
      height: 3px;
      background: var(--primary);
      margin-top: 6px;
      border-radius: 2px;
    }
    .nav-menu { flex: 1; padding: 20px 0; }
    .nav-menu a {
      display: flex;
      align-items: center;
      padding: 10px 24px;
      color: rgba(255,255,255,0.75);
      font-size: 14px;
      font-weight: 500;
      border-left: 3px solid transparent;
      transition: all var(--transition-base);
      gap: 10px;
    }
    .nav-menu a i { font-size: 16px; width: 20px; text-align: center; }
    .nav-menu a:hover { color: #fff; background: rgba(168,85,247,0.08); }
    .nav-menu a.active {
      color: #fff;
      background: rgba(168,85,247,0.12);
      border-left-color: var(--primary);
    }
    .nav-bottom {
      padding: 20px 24px;
      border-top: 1px solid rgba(255,255,255,0.08);
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: rgba(255,255,255,0.7);
    }
    .nav-bottom i { font-size: 18px; color: #fff; cursor: pointer; }
    .user-avatar {
      width: 32px; height: 32px;
      border-radius: 50%;
      background: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 14px;
    }
    .main-content { margin-left: var(--nav-width); min-height: 100vh; }
    /* 移动端底部导航 */
    .mobile-tab-bar {
      display: none;
      position: fixed;
      bottom: 0; left: 0; right: 0;
      background: var(--bg-dark);
      box-shadow: 0 -2px 12px rgba(0,0,0,0.12);
      z-index: 1000;
      padding: 8px 0 env(safe-area-inset-bottom);
      justify-content: space-around;
    }
    .mobile-tab-bar a {
      display: flex;
      flex-direction: column;
      align-items: center;
      color: rgba(255,255,255,0.6);
      font-size: 11px;
      gap: 2px;
      transition: color var(--transition-base);
    }
    .mobile-tab-bar a i { font-size: 18px; }
    .mobile-tab-bar a.active { color: var(--primary); }
    .mobile-logo {
      display: none;
      text-align: center; padding: 12px 0;
      background: var(--bg-dark);
      color: #fff; font-weight: 800; font-size: 18px;
    }
    /* Hero看板 */
    .hero-dashboard {
      background: linear-gradient(135deg, #0B0E14 0%, #1E1B2E 100%);
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      background-blend-mode: overlay;
      padding: 40px 32px;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .data-card-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      margin-bottom: 24px;
    }
    .data-card {
      background: rgba(255,255,255,0.06);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-sm);
      padding: 16px;
      color: #fff;
      transition: all var(--transition-base);
    }
    .data-card:hover {
      background: rgba(255,255,255,0.1);
      border-color: var(--primary);
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(168,85,247,0.15);
    }
    .data-card .metric {
      font-family: var(--font-mono);
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 4px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .data-card .label {
      font-size: 12px;
      color: rgba(255,255,255,0.65);
    }
    .trend-up { color: var(--accent-orange); font-size: 12px; }
    .trend-down { color: var(--accent-cyan); font-size: 12px; }
    .live-badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      background: var(--accent-orange);
      color: #fff;
      font-size: 10px;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 12px;
      animation: pulse 1.5s infinite;
    }
    @keyframes pulse { 0% { opacity: 1; } 50% { opacity: 0.7; } 100% { opacity: 1; } }
    .featured-match-card {
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: var(--radius-md);
      padding: 24px;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: 12px;
    }
    /* 资讯列表 */
    .news-item {
      display: flex;
      gap: 12px;
      padding: 14px 0;
      border-bottom: 1px solid var(--border-light);
      align-items: flex-start;
    }
    .news-thumb {
      width: 48px; height: 48px;
      border-radius: var(--radius-sm);
      object-fit: cover;
      flex-shrink: 0;
      background: #f1f5f9;
    }
    .news-content { flex: 1; }
    .news-title { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; display: flex; align-items: center; gap: 6px; }
    .badge-new { background: #F97316; color:#fff; font-size:10px; padding:1px 6px; border-radius:10px; }
    .badge-hot { background: #EF4444; color:#fff; }
    .badge-rec { background: #A855F7; color:#fff; }
    .news-summary { font-size: 12px; color: var(--text-secondary); line-height: 1.5; margin-bottom: 4px; }
    .news-time { font-size: 11px; color: var(--text-light); }
    /* 卡片通用 */
    .section-title {
      font-size: 20px; font-weight: 700; color: var(--text-primary); margin-bottom: 20px;
      display: flex; align-items: center; gap: 8px;
    }
    .section-title::before { content:''; width:4px; height:20px; background:var(--primary); border-radius:2px; }
    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      padding: 24px 20px;
      text-align: center;
      transition: all var(--transition-base);
    }
    .service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
    .service-icon { font-size: 28px; color: var(--primary); margin-bottom: 12px; }
    .topic-card {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      height: 220px;
      background: #1e293b;
    }
    .topic-card img {
      width: 100%; height: 100%; object-fit: cover;
    }
    .topic-gradient {
      position: absolute;
      bottom:0; left:0; right:0;
      background: linear-gradient(transparent, rgba(0,0,0,0.75));
      padding: 20px;
      color: #fff;
    }
    .tag-item {
      display: inline-block;
      background: #F1F5F9;
      color: var(--text-primary);
      font-size: 12px;
      padding: 6px 14px;
      border-radius: 20px;
      margin: 4px;
      transition: background var(--transition-base);
    }
    .tag-item:hover { background: var(--primary); color: #fff; }
    .timeline-item {
      display: flex;
      gap: 16px;
      padding: 12px 0;
      border-left: 2px solid var(--border-light);
      margin-left: 12px;
      padding-left: 20px;
      position: relative;
    }
    .timeline-item::before {
      content: '';
      position: absolute;
      left: -6px; top: 16px;
      width: 10px; height: 10px;
      background: var(--primary);
      border-radius: 50%;
    }
    .faq-item {
      border-bottom: 1px solid var(--border-light);
      padding: 16px 0;
    }
    .faq-question {
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      color: var(--text-primary);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.7;
    }
    .faq-item.open .faq-answer { max-height: 200px; padding-top: 8px; }
    .faq-item.open .faq-icon { transform: rotate(45deg); }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
    }
    input::placeholder { color: #94A3B8; }
    /* 响应式 */
    @media (max-width: 1024px) {
      .data-card-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .sidebar-nav { display: none; }
      .mobile-tab-bar { display: flex; }
      .mobile-logo { display: block; }
      .main-content { margin-left: 0; padding-bottom: 70px; }
      .hero-dashboard { padding: 24px 16px; min-height: auto; }
      .data-card-grid { grid-template-columns: repeat(2, 1fr); }
      .featured-match-card { flex-direction: column; gap: 12px; }
      .service-grid, .topic-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }

/* roulang page: category1 */
:root {
            --bg-deep: #0B0E14;
            --purple: #A855F7;
            --purple-hover: #9333EA;
            --orange: #F97316;
            --cyan: #22D3EE;
            --bg-page: #F8FAFC;
            --white: #FFFFFF;
            --border: #E2E8F0;
            --text: #1E293B;
            --text-weak: #64748B;
            --text-light: #94A3B8;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(168, 85, 247, 0.10);
            --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.12);
            --sidebar-w: 240px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-mono: "Inter", "Roboto Mono", "SF Mono", monospace;
        }

        *,
        *::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-cn);
            font-size: 14px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg-page);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--purple);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            transition: all var(--transition-fast);
        }
        input {
            font-family: inherit;
            outline: none;
        }
        ul {
            list-style: none;
        }

        /* 左侧导航栏 */
        .sidebar-nav {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--sidebar-w);
            background: var(--bg-deep);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 20px 0;
            overflow-y: auto;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
        }
        .sidebar-nav .logo-area {
            padding: 0 24px 16px;
            margin-bottom: 8px;
        }
        .sidebar-nav .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            display: inline-block;
            position: relative;
        }
        .sidebar-nav .logo-text span {
            position: relative;
            z-index: 1;
        }
        .sidebar-nav .logo-underline {
            width: 36px;
            height: 3px;
            background: var(--purple);
            border-radius: 2px;
            margin-top: 6px;
            transition: width var(--transition-smooth);
        }
        .sidebar-nav .logo-area:hover .logo-underline {
            width: 56px;
        }
        .sidebar-nav .nav-menu {
            flex: 1;
            padding: 0 12px;
        }
        .sidebar-nav .nav-menu li {
            margin-bottom: 2px;
        }
        .sidebar-nav .nav-menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.78);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.3px;
        }
        .sidebar-nav .nav-menu a i {
            font-size: 15px;
            width: 18px;
            text-align: center;
            opacity: 0.75;
            transition: opacity var(--transition-fast);
        }
        .sidebar-nav .nav-menu a:hover {
            background: rgba(168, 85, 247, 0.10);
            color: #fff;
        }
        .sidebar-nav .nav-menu a:hover i {
            opacity: 1;
            color: var(--purple);
        }
        .sidebar-nav .nav-menu a.active {
            background: rgba(168, 85, 247, 0.14);
            color: #fff;
            font-weight: 600;
            border-left: 3px solid var(--purple);
            padding-left: 11px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }
        .sidebar-nav .nav-menu a.active i {
            opacity: 1;
            color: var(--purple);
        }
        .sidebar-nav .nav-bottom {
            padding: 16px 24px 8px;
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: auto;
            color: rgba(255, 255, 255, 0.55);
        }
        .sidebar-nav .nav-bottom .fa-search {
            font-size: 16px;
            cursor: pointer;
            transition: color var(--transition-fast);
        }
        .sidebar-nav .nav-bottom .fa-search:hover {
            color: #fff;
        }
        .sidebar-nav .user-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--purple);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            cursor: pointer;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }
        .sidebar-nav .user-avatar:hover {
            transform: scale(1.08);
            box-shadow: 0 0 0 4px rgba(168, 85, 247, 0.25);
        }

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

        /* 移动端底部TabBar */
        .mobile-tabbar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-deep);
            z-index: 1001;
            padding: 6px 8px 10px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            justify-content: space-around;
            align-items: center;
        }
        .mobile-tabbar a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 10px;
            font-weight: 500;
            transition: color var(--transition-fast);
            padding: 4px 6px;
            border-radius: var(--radius-sm);
            min-width: 52px;
            text-align: center;
        }
        .mobile-tabbar a i {
            font-size: 18px;
            transition: color var(--transition-fast);
        }
        .mobile-tabbar a.active {
            color: var(--purple);
        }
        .mobile-tabbar a.active i {
            color: var(--purple);
        }
        .mobile-top-logo {
            display: none;
            text-align: center;
            padding: 12px 16px 8px;
            background: var(--bg-deep);
            position: sticky;
            top: 0;
            z-index: 999;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .mobile-top-logo .logo-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--purple);
            border-radius: 50%;
            margin-left: 4px;
            vertical-align: middle;
            animation: pulse-dot 1.6s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 0.5;
                transform: scale(1);
            }
            50% {
                opacity: 1;
                transform: scale(1.7);
            }
        }

        /* Hero区域 */
        .hero-banner {
            position: relative;
            background: linear-gradient(135deg, rgba(11, 14, 20, 0.92) 0%, rgba(30, 20, 50, 0.88) 50%, rgba(11, 14, 20, 0.93) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 48px 40px 40px;
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            overflow: hidden;
        }
        .hero-banner::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(168, 85, 247, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-banner .hero-inner {
            position: relative;
            z-index: 1;
            max-width: 1100px;
            margin: 0 auto;
        }
        .hero-banner .hero-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }
        .hero-banner .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 13px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.05);
            color: rgba(255, 255, 255, 0.85);
        }
        .hero-banner .hero-tag:hover {
            background: rgba(168, 85, 247, 0.2);
            border-color: var(--purple);
            color: #fff;
            transform: translateY(-1px);
        }
        .hero-banner .hero-tag.live-tag {
            background: rgba(249, 115, 22, 0.2);
            border-color: var(--orange);
            color: var(--orange);
            animation: live-pulse 2s infinite;
        }
        @keyframes live-pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.4);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(249, 115, 22, 0);
            }
        }
        .hero-banner h1 {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .hero-banner .hero-subtitle {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            line-height: 1.6;
            margin-bottom: 20px;
        }
        .hero-banner .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .btn-purple {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 11px 22px;
            background: var(--purple);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-sm);
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            cursor: pointer;
            border: none;
        }
        .btn-purple:hover {
            background: var(--purple-hover);
            transform: scale(1.02);
            box-shadow: 0 4px 16px rgba(168, 85, 247, 0.35);
            color: #fff;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            background: transparent;
            color: #fff;
            font-weight: 500;
            font-size: 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.35);
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        /* 板块通用 */
        .section-block {
            padding: 40px 32px;
            max-width: 1100px;
            margin: 0 auto;
        }
        .section-block h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .section-block .section-subtitle {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 20px;
            line-height: 1.5;
        }

        /* 数据概览卡片网格 */
        .data-cards-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 12px;
        }
        .data-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 16px 14px;
            transition: all var(--transition-fast);
            cursor: pointer;
            position: relative;
            text-align: center;
        }
        .data-card:hover {
            border-color: var(--purple);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .data-card .data-value {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            line-height: 1;
            margin-bottom: 6px;
        }
        .data-card .data-label {
            font-size: 11px;
            color: var(--text-weak);
            letter-spacing: 0.3px;
        }
        .data-card .data-trend {
            font-size: 11px;
            font-weight: 700;
            margin-top: 4px;
            display: inline-flex;
            align-items: center;
            gap: 2px;
        }
        .data-card .data-trend.up {
            color: var(--orange);
        }
        .data-card .data-trend.down {
            color: var(--cyan);
        }
        .data-card .live-dot {
            position: absolute;
            top: 10px;
            right: 12px;
            width: 7px;
            height: 7px;
            background: var(--orange);
            border-radius: 50%;
            animation: live-blink 1.4s infinite;
        }
        @keyframes live-blink {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.25;
            }
        }

        /* 资讯列表 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-fast);
            cursor: pointer;
            align-items: flex-start;
        }
        .news-item:hover {
            background: rgba(168, 85, 247, 0.03);
            padding-left: 8px;
            margin-left: -8px;
            border-radius: var(--radius-sm);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-thumb {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #f1f5f9;
        }
        .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-info .news-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .news-info .news-summary {
            font-size: 12px;
            color: var(--text-weak);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-info .news-meta {
            font-size: 11px;
            color: var(--text-light);
            margin-top: 3px;
        }
        .badge-tag {
            display: inline-block;
            padding: 2px 7px;
            border-radius: 3px;
            font-size: 10px;
            font-weight: 700;
            letter-spacing: 0.3px;
            line-height: 1.4;
        }
        .badge-tag.new {
            background: #FFF7ED;
            color: var(--orange);
        }
        .badge-tag.hot {
            background: #FEF2F2;
            color: #EF4444;
        }
        .badge-tag.rec {
            background: #F5F3FF;
            color: var(--purple);
        }

        /* 专题推荐卡片 */
        .topic-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .topic-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--white);
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
            cursor: pointer;
            position: relative;
        }
        .topic-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--purple);
        }
        .topic-card .topic-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background: #e2e8f0;
        }
        .topic-card .topic-body {
            padding: 14px 16px 16px;
        }
        .topic-card .topic-body h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 5px;
        }
        .topic-card .topic-body p {
            font-size: 12px;
            color: var(--text-weak);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .topic-card .topic-tag {
            display: inline-block;
            padding: 3px 9px;
            border: 1px solid var(--purple);
            color: var(--purple);
            border-radius: 12px;
            font-size: 10px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
        }
        .topic-card:hover .topic-tag {
            background: var(--purple);
            color: #fff;
        }

        /* FAQ手风琴 */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 0;
            cursor: pointer;
            font-weight: 600;
            font-size: 14px;
            color: var(--text);
            transition: color var(--transition-fast);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--purple);
        }
        .faq-question .faq-num {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--purple);
            flex-shrink: 0;
            width: 22px;
        }
        .faq-question .faq-icon {
            margin-left: auto;
            font-size: 16px;
            transition: transform var(--transition-smooth);
            color: var(--text-weak);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--purple);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.7;
            padding: 0 0 0 34px;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 0 16px 34px;
        }

        /* CTA区域 */
        .cta-block {
            background: linear-gradient(135deg, #0B0E14 0%, #1a1030 60%, #0B0E14 100%);
            padding: 44px 32px;
            text-align: center;
            color: #fff;
            border-radius: var(--radius-lg);
            margin: 0 32px 40px;
            max-width: 1100px;
        }
        .cta-block h2 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
            letter-spacing: 0.3px;
        }
        .cta-block p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            line-height: 1.6;
        }
        .cta-input-row {
            display: flex;
            gap: 10px;
            max-width: 420px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-input-row input {
            flex: 1;
            min-width: 200px;
            padding: 11px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 14px;
            letter-spacing: 0.3px;
            transition: border-color var(--transition-fast);
        }
        .cta-input-row input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .cta-input-row input:focus {
            border-color: var(--purple);
            box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.2);
        }

        /* 页脚 */
        .site-footer {
            background: #1E293B;
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 32px 20px;
            margin-top: auto;
        }
        .site-footer .footer-inner {
            max-width: 1100px;
            margin: 0 auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
        }
        .footer-grid h3 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 12px;
            font-size: 16px;
        }
        .footer-grid h4 {
            color: #fff;
            margin-bottom: 10px;
            font-size: 13px;
            font-weight: 600;
        }
        .footer-grid ul {
            font-size: 13px;
            line-height: 2.2;
        }
        .footer-grid ul li a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-grid ul li a:hover {
            color: var(--purple);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 30px;
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            margin: 0 8px;
            transition: color var(--transition-fast);
            font-size: 12px;
        }
        .footer-bottom a:hover {
            color: var(--purple);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .data-cards-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .topic-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-banner {
                padding: 36px 24px 32px;
            }
            .hero-banner h1 {
                font-size: 24px;
            }
            .section-block {
                padding: 32px 20px;
            }
        }
        @media (max-width: 768px) {
            .sidebar-nav {
                display: none;
            }
            .mobile-tabbar {
                display: flex;
            }
            .mobile-top-logo {
                display: block;
            }
            .main-wrapper {
                margin-left: 0;
                padding-bottom: 70px;
            }
            .data-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .data-card {
                padding: 12px 10px;
            }
            .data-card .data-value {
                font-size: 18px;
            }
            .topic-cards-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .hero-banner {
                padding: 28px 16px 24px;
            }
            .hero-banner h1 {
                font-size: 22px;
            }
            .hero-banner .hero-tag-row {
                gap: 5px;
            }
            .hero-banner .hero-tag {
                font-size: 10px;
                padding: 5px 10px;
            }
            .section-block {
                padding: 24px 16px;
            }
            .cta-block {
                margin: 0 16px 24px;
                padding: 28px 16px;
            }
            .news-item {
                gap: 10px;
            }
            .news-thumb {
                width: 32px;
                height: 32px;
            }
            .btn-purple,
            .btn-outline-light {
                font-size: 12px;
                padding: 9px 15px;
            }
        }
        @media (max-width: 520px) {
            .data-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 6px;
            }
            .data-card {
                padding: 10px 8px;
            }
            .data-card .data-value {
                font-size: 16px;
            }
            .data-card .data-label {
                font-size: 10px;
            }
            .hero-banner h1 {
                font-size: 19px;
            }
            .hero-banner .hero-subtitle {
                font-size: 12px;
            }
            .hero-banner .hero-cta-row {
                gap: 8px;
            }
            .section-block h2 {
                font-size: 17px;
            }
            .faq-question {
                font-size: 13px;
                padding: 12px 0;
            }
            .mobile-tabbar a {
                font-size: 9px;
                min-width: 40px;
                padding: 3px 4px;
            }
            .mobile-tabbar a i {
                font-size: 16px;
            }
            .footer-bottom {
                font-size: 10px;
            }
            .footer-bottom a {
                margin: 0 4px;
                font-size: 10px;
            }
        }

/* roulang page: category2 */
:root {
            --deep-black: #0B0E14;
            --electric-purple: #A855F7;
            --purple-hover: #9333EA;
            --alert-orange: #F97316;
            --highlight-cyan: #22D3EE;
            --bg-light: #F8FAFC;
            --card-white: #FFFFFF;
            --card-border: #E2E8F0;
            --text-weak: #64748B;
            --footer-dark: #1E293B;
            --shadow-purple: rgba(168, 85, 247, 0.08);
            --shadow-purple-strong: rgba(168, 85, 247, 0.18);
            --nav-width: 240px;
            --tabbar-height: 56px;
            --font-sans: "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-mono: "Roboto Mono", "Inter", monospace;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 14px;
            line-height: 1.7;
            color: #1E293B;
            background-color: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--electric-purple);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--electric-purple);
            outline-offset: 2px;
            border-radius: 2px;
        }
        input {
            font-family: inherit;
            outline: none;
        }
        ul {
            list-style: none;
        }

        /* ========== 桌面端左侧固定导航 ========== */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--deep-black);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            padding: 20px 0;
            overflow-y: auto;
            box-shadow: 2px 0 16px rgba(0, 0, 0, 0.25);
        }
        .sidebar-nav .logo-area {
            padding: 8px 24px 16px;
            margin-bottom: 8px;
        }
        .sidebar-nav .logo-text {
            display: inline-block;
            font-size: 20px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: 1px;
            transition: color 0.2s ease;
        }
        .sidebar-nav .logo-text:hover {
            color: var(--electric-purple);
        }
        .sidebar-nav .logo-text span {
            position: relative;
        }
        .sidebar-nav .logo-underline {
            width: 40px;
            height: 3px;
            background: var(--electric-purple);
            border-radius: 2px;
            margin-top: 6px;
        }
        .sidebar-nav .nav-menu {
            flex: 1;
            padding: 0 12px;
        }
        .sidebar-nav .nav-menu li {
            margin-bottom: 2px;
        }
        .sidebar-nav .nav-menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.2s ease;
            position: relative;
            border-left: 3px solid transparent;
        }
        .sidebar-nav .nav-menu a:hover {
            background: rgba(168, 85, 247, 0.12);
            color: #FFFFFF;
        }
        .sidebar-nav .nav-menu a.active {
            background: rgba(168, 85, 247, 0.16);
            color: #FFFFFF;
            font-weight: 600;
            border-left: 3px solid var(--electric-purple);
        }
        .sidebar-nav .nav-menu a i {
            width: 18px;
            text-align: center;
            font-size: 15px;
        }
        .sidebar-nav .nav-bottom {
            padding: 16px 24px;
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: auto;
            color: rgba(255, 255, 255, 0.6);
        }
        .sidebar-nav .nav-bottom i {
            font-size: 17px;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .sidebar-nav .nav-bottom i:hover {
            color: #FFFFFF;
        }
        .sidebar-nav .user-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--electric-purple);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            cursor: pointer;
            transition: background 0.2s ease;
        }
        .sidebar-nav .user-avatar:hover {
            background: var(--purple-hover);
        }

        /* ========== 移动端底部TabBar ========== */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: var(--tabbar-height);
            background: #FFFFFF;
            border-top: 1px solid var(--card-border);
            z-index: 1001;
            justify-content: space-around;
            align-items: center;
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
        }
        .mobile-tab-bar a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            font-size: 10px;
            color: var(--text-weak);
            font-weight: 500;
            transition: color 0.2s ease;
            padding: 4px 8px;
            min-width: 48px;
        }
        .mobile-tab-bar a i {
            font-size: 18px;
        }
        .mobile-tab-bar a.active {
            color: var(--electric-purple);
            font-weight: 700;
        }
        .mobile-top-logo {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 44px;
            background: var(--deep-black);
            z-index: 1000;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 16px;
            letter-spacing: 1px;
        }

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

        /* ========== 板块通用 ========== */
        .section-block {
            padding: 48px 32px;
        }
        .section-block .section-title {
            font-size: 20px;
            font-weight: 700;
            color: #1E293B;
            margin-bottom: 6px;
            letter-spacing: -0.3px;
        }
        .section-block .section-subtitle {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 28px;
        }
        .section-block .section-divider {
            width: 48px;
            height: 3px;
            background: var(--electric-purple);
            border-radius: 2px;
            margin-bottom: 24px;
        }

        /* ========== Hero横幅 ========== */
        .category-hero {
            background: linear-gradient(135deg, #0B0E14 0%, #1a1030 40%, #0d1525 100%);
            position: relative;
            overflow: hidden;
            padding: 56px 40px;
            color: #FFFFFF;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            z-index: 0;
        }
        .category-hero .hero-inner {
            position: relative;
            z-index: 1;
            max-width: 1100px;
            width: 100%;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .category-hero .hero-text {
            flex: 1;
            min-width: 280px;
        }
        .category-hero .hero-label {
            display: inline-block;
            background: var(--alert-orange);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 3px;
            letter-spacing: 1px;
            margin-bottom: 14px;
            animation: pulse-live 1.6s ease-in-out infinite;
        }
        @keyframes pulse-live {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }
        .category-hero .hero-text h1 {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .category-hero .hero-text h1 .highlight {
            color: var(--electric-purple);
        }
        .category-hero .hero-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 520px;
        }
        .category-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }
        .category-hero .hero-tags a {
            display: inline-block;
            padding: 7px 15px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            border-radius: 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.9);
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .category-hero .hero-tags a:hover {
            background: var(--electric-purple);
            border-color: var(--electric-purple);
            color: #fff;
            transform: translateY(-1px);
        }
        .category-hero .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-block;
            padding: 11px 24px;
            background: var(--electric-purple);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 14px;
            border-radius: 6px;
            transition: all 0.2s ease;
            cursor: pointer;
            text-align: center;
        }
        .btn-primary:hover {
            background: var(--purple-hover);
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(168, 85, 247, 0.35);
            color: #fff;
        }
        .btn-outline-light {
            display: inline-block;
            padding: 10px 22px;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #FFFFFF;
            font-weight: 500;
            font-size: 14px;
            border-radius: 6px;
            transition: all 0.2s ease;
            cursor: pointer;
            text-align: center;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .category-hero .hero-image-card {
            flex: 0 0 300px;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
            border: 2px solid rgba(255, 255, 255, 0.12);
        }
        .category-hero .hero-image-card img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* ========== 数据概览卡片 ========== */
        .data-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }
        .data-card {
            background: var(--card-white);
            border: 1px solid var(--card-border);
            border-radius: var(--card);
            padding: 18px 16px;
            transition: all 0.2s ease;
            cursor: pointer;
            position: relative;
        }
        .data-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px var(--shadow-purple);
            border-color: var(--electric-purple);
        }
        .data-card .card-label {
            font-size: 11px;
            color: var(--text-weak);
            text-transform: uppercase;
            letter-spacing: 0.6px;
            margin-bottom: 6px;
            font-weight: 500;
        }
        .data-card .card-value {
            font-family: var(--font-mono);
            font-size: 26px;
            font-weight: 800;
            color: #1E293B;
            margin-bottom: 4px;
        }
        .data-card .card-trend {
            font-size: 12px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }
        .data-card .card-trend.up {
            color: var(--alert-orange);
        }
        .data-card .card-trend.down {
            color: var(--highlight-cyan);
        }
        .data-card .live-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #EF4444;
            margin-right: 4px;
            animation: pulse-live 1.2s ease-in-out infinite;
            vertical-align: middle;
        }

        /* ========== 核心服务卡片 ========== */
        .service-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .service-card {
            background: var(--card-white);
            border: 1px solid var(--card-border);
            border-radius: var(--card-lg);
            padding: 28px 20px;
            text-align: center;
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px var(--shadow-purple);
            border-color: var(--electric-purple);
        }
        .service-card .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(168, 85, 247, 0.1);
            color: var(--electric-purple);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 22px;
            transition: all 0.2s ease;
        }
        .service-card:hover .service-icon {
            background: var(--electric-purple);
            color: #fff;
        }
        .service-card h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
            color: #1E293B;
        }
        .service-card p {
            font-size: 12px;
            color: var(--text-weak);
            line-height: 1.5;
        }

        /* ========== 资讯列表 ========== */
        .news-list-dense {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--card-border);
            border-radius: var(--card);
            overflow: hidden;
            background: #fff;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 18px;
            border-bottom: 1px solid var(--card-border);
            transition: background 0.15s ease;
            cursor: pointer;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            background: #faf5ff;
        }
        .news-item .news-thumb {
            flex: 0 0 42px;
            height: 42px;
            border-radius: 4px;
            overflow: hidden;
            background: #f1f5f9;
        }
        .news-item .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-item .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-body .news-title {
            font-size: 14px;
            font-weight: 600;
            color: #1E293B;
            margin-bottom: 3px;
            display: flex;
            align-items: center;
            gap: 6px;
            line-height: 1.4;
        }
        .news-item .news-body .news-summary {
            font-size: 12px;
            color: var(--text-weak);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-meta {
            font-size: 11px;
            color: #94a3b8;
            margin-top: 4px;
        }
        .badge-tag {
            display: inline-block;
            padding: 2px 7px;
            border-radius: 3px;
            font-size: 10px;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            line-height: 1.4;
        }
        .badge-new {
            background: #FFF7ED;
            color: var(--alert-orange);
        }
        .badge-hot {
            background: #FEF2F2;
            color: #EF4444;
        }
        .badge-rec {
            background: #FAF5FF;
            color: var(--electric-purple);
        }

        /* ========== 专题推荐 ========== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .topic-card {
            position: relative;
            border-radius: var(--card-lg);
            overflow: hidden;
            cursor: pointer;
            aspect-ratio: 4 / 3;
            background: #1E293B;
            transition: all 0.2s ease;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
        }
        .topic-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .topic-card:hover img {
            transform: scale(1.05);
        }
        .topic-card .topic-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 16px 16px;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
            color: #fff;
        }
        .topic-card .topic-overlay h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
            color: #fff;
        }
        .topic-card .topic-overlay p {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .topic-card .topic-tag {
            display: inline-block;
            padding: 3px 10px;
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: 12px;
            font-size: 10px;
            color: #fff;
            background: transparent;
        }

        /* ========== 用户评价 ========== */
        .testimonials-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 8px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .testimonials-scroll::-webkit-scrollbar {
            height: 4px;
        }
        .testimonials-scroll::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 2px;
        }
        .testimonial-card {
            flex: 0 0 300px;
            background: #fff;
            border: 1px solid var(--card-border);
            border-radius: var(--card-lg);
            padding: 22px 20px;
            scroll-snap-align: start;
            transition: all 0.2s ease;
            cursor: default;
            position: relative;
        }
        .testimonial-card:hover {
            box-shadow: 0 6px 20px var(--shadow-purple);
            border-color: var(--electric-purple);
        }
        .testimonial-card .quote-mark {
            font-size: 40px;
            color: rgba(168, 85, 247, 0.25);
            line-height: 1;
            margin-bottom: 6px;
            font-family: Georgia, serif;
        }
        .testimonial-card .testimonial-text {
            font-size: 13px;
            color: #475569;
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .testimonial-card .testimonial-author {
            font-size: 12px;
            color: var(--text-weak);
            font-weight: 500;
        }
        .testimonial-card .testimonial-stars {
            color: #F59E0B;
            font-size: 13px;
            margin-bottom: 4px;
        }

        /* ========== FAQ手风琴 ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--card-border);
            border-radius: var(--card);
            overflow: hidden;
            background: #fff;
        }
        .faq-item {
            border-bottom: 1px solid var(--card-border);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 14px;
            color: #1E293B;
            transition: background 0.15s ease;
            gap: 12px;
            user-select: none;
        }
        .faq-question:hover {
            background: #faf5ff;
        }
        .faq-question .faq-num {
            color: var(--electric-purple);
            font-weight: 700;
            font-size: 13px;
            flex-shrink: 0;
        }
        .faq-question .faq-toggle {
            font-size: 18px;
            color: var(--text-weak);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
            color: var(--electric-purple);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background: #fafafa;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 14px 20px 18px;
        }
        .faq-answer p {
            font-size: 13px;
            color: #475569;
            line-height: 1.7;
        }

        /* ========== CTA板块 ========== */
        .cta-section {
            background: linear-gradient(135deg, #0B0E14 0%, #1a1035 100%);
            text-align: center;
            padding: 48px 32px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-section h2 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .cta-section p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }
        .cta-form {
            display: flex;
            gap: 8px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-form input {
            padding: 11px 16px;
            border-radius: 6px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            min-width: 240px;
            transition: border-color 0.2s ease;
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .cta-form input:focus {
            border-color: var(--electric-purple);
        }
        .cta-form .btn-primary {
            white-space: nowrap;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--footer-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 32px 20px;
        }
        .site-footer .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 28px;
        }
        .footer-grid h3 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 12px;
            font-size: 18px;
        }
        .footer-grid h4 {
            color: #fff;
            margin-bottom: 12px;
            font-size: 14px;
            font-weight: 600;
        }
        .footer-grid ul {
            font-size: 13px;
            line-height: 2.2;
        }
        .footer-grid ul li a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }
        .footer-grid ul li a:hover {
            color: var(--electric-purple);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 30px;
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            margin: 0 8px;
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: var(--electric-purple);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .data-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-hero .hero-inner {
                flex-direction: column;
                gap: 24px;
            }
            .category-hero .hero-image-card {
                flex: 0 0 auto;
                width: 100%;
                max-width: 340px;
            }
            .section-block {
                padding: 36px 20px;
            }
            .testimonial-card {
                flex: 0 0 260px;
            }
        }

        @media (max-width: 768px) {
            .sidebar-nav {
                display: none;
            }
            .mobile-tab-bar {
                display: flex;
            }
            .mobile-top-logo {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 44px;
                padding-bottom: var(--tabbar-height);
            }
            .data-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .service-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .topics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .category-hero {
                padding: 40px 18px;
                min-height: auto;
            }
            .category-hero .hero-text h1 {
                font-size: 24px;
            }
            .category-hero .hero-image-card {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .section-block {
                padding: 28px 14px;
            }
            .testimonials-scroll {
                gap: 10px;
            }
            .testimonial-card {
                flex: 0 0 240px;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                min-width: 100%;
                max-width: 360px;
            }
            .news-item {
                padding: 12px 14px;
                gap: 10px;
            }
            .category-hero .hero-tags a {
                font-size: 11px;
                padding: 5px 11px;
            }
        }

        @media (max-width: 520px) {
            .data-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .data-card {
                padding: 12px 10px;
            }
            .data-card .card-value {
                font-size: 20px;
            }
            .service-cards-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .topic-card {
                aspect-ratio: 16 / 9;
            }
            .category-hero .hero-text h1 {
                font-size: 21px;
            }
            .category-hero .hero-tags {
                gap: 5px;
            }
            .category-hero .hero-tags a {
                font-size: 10px;
                padding: 4px 9px;
            }
            .section-block .section-title {
                font-size: 17px;
            }
            .testimonial-card {
                flex: 0 0 220px;
            }
            .btn-primary,
            .btn-outline-light {
                font-size: 13px;
                padding: 9px 16px;
            }
        }

/* roulang page: category3 */
:root {
            --color-deep-obsidian: #0B0E14;
            --color-electric-purple: #A855F7;
            --color-purple-hover: #9333EA;
            --color-alert-orange: #F97316;
            --color-highlight-cyan: #22D3EE;
            --color-bg-light: #F8FAFC;
            --color-card-bg: #FFFFFF;
            --color-border: #E2E8F0;
            --color-text-primary: #1E293B;
            --color-text-secondary: #64748B;
            --color-text-weak: #94A3B8;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card-hover: 0 8px 24px rgba(168, 85, 247, 0.08);
            --shadow-elevated: 0 4px 16px rgba(11, 14, 20, 0.06);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 240px;
            --font-display: "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-mono: "Inter", "Roboto Mono", "SF Mono", monospace;
            --font-body: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", 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-body);
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-primary);
            background-color: var(--color-bg-light);
            min-height: 100vh;
            display: flex;
            flex-direction: row;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
        }

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-deep-obsidian);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            padding: 20px 0;
            box-shadow: 2px 0 16px rgba(11, 14, 20, 0.15);
        }

        .logo-area {
            padding: 8px 24px 16px;
            margin-bottom: 8px;
        }

        .logo-text {
            display: inline-block;
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: 1px;
            transition: color var(--transition-fast);
            position: relative;
        }

        .logo-text span {
            position: relative;
            display: inline-block;
        }

        .logo-text:hover {
            color: var(--color-electric-purple);
        }

        .logo-underline {
            width: 36px;
            height: 3px;
            background: var(--color-electric-purple);
            border-radius: 2px;
            margin-top: 8px;
            transition: width var(--transition-smooth);
        }

        .logo-area:hover .logo-underline {
            width: 56px;
        }

        .nav-menu {
            flex: 1;
            padding: 0 12px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .nav-menu li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 16px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav-menu li a i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            opacity: 0.8;
            transition: opacity var(--transition-fast);
        }

        .nav-menu li a:hover {
            background: rgba(168, 85, 247, 0.1);
            color: #FFFFFF;
        }

        .nav-menu li a:hover i {
            opacity: 1;
        }

        .nav-menu li a.active {
            background: rgba(168, 85, 247, 0.18);
            color: #FFFFFF;
            font-weight: 600;
            border-left: 3px solid var(--color-electric-purple);
            padding-left: 13px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }

        .nav-menu li a.active i {
            opacity: 1;
            color: var(--color-electric-purple);
        }

        .nav-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.6);
            margin-top: auto;
        }

        .nav-bottom .fa-search {
            font-size: 16px;
            cursor: pointer;
            transition: color var(--transition-fast);
        }

        .nav-bottom .fa-search:hover {
            color: var(--color-electric-purple);
        }

        .user-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-electric-purple);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            cursor: pointer;
            transition: background var(--transition-fast);
            letter-spacing: 0;
        }

        .user-avatar:hover {
            background: var(--color-purple-hover);
        }

        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .hero-category {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            padding: 60px 40px;
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 14, 20, 0.92) 0%, rgba(11, 14, 20, 0.7) 50%, rgba(168, 85, 247, 0.25) 100%);
            z-index: 1;
        }

        .hero-category::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(168, 85, 247, 0.03) 2px, rgba(168, 85, 247, 0.03) 4px),
                repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(168, 85, 247, 0.03) 2px, rgba(168, 85, 247, 0.03) 4px);
            z-index: 1;
            pointer-events: none;
        }

        .hero-category-content {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            width: 100%;
        }

        .hero-category-badge {
            display: inline-block;
            background: var(--color-alert-orange);
            color: #FFFFFF;
            font-size: 11px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            animation: livePulse 2s infinite;
            margin-bottom: 16px;
        }

        @keyframes livePulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.5);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(249, 115, 22, 0);
            }
        }

        .hero-category h1 {
            font-family: var(--font-display);
            font-size: 38px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            line-height: 1.25;
            margin-bottom: 12px;
            text-shadow: 0 2px 8px rgba(11, 14, 20, 0.5);
        }

        .hero-category h1 .highlight {
            color: var(--color-electric-purple);
            position: relative;
        }

        .hero-category-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            line-height: 1.6;
            margin-bottom: 24px;
        }

        .hero-tags-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .hero-tag-link {
            display: inline-block;
            padding: 8px 18px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            border-radius: 20px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
            letter-spacing: 0.3px;
            backdrop-filter: blur(4px);
        }

        .hero-tag-link:hover {
            border-color: var(--color-electric-purple);
            background: rgba(168, 85, 247, 0.25);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(168, 85, 247, 0.2);
        }

        .section-container {
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            padding: 0 32px;
        }

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

        .section-header {
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-header h2 {
            font-family: var(--font-display);
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text-primary);
            letter-spacing: 0.3px;
            position: relative;
            padding-left: 16px;
        }

        .section-header h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            background: var(--color-electric-purple);
            border-radius: 2px;
        }

        .section-header .subtitle-link {
            font-size: 13px;
            color: var(--color-electric-purple);
            font-weight: 500;
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .section-header .subtitle-link:hover {
            color: var(--color-purple-hover);
        }

        .data-cards-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
        }

        .data-card {
            background: var(--color-card-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 18px 16px;
            transition: all var(--transition-fast);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

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

        .data-card .data-label {
            font-size: 11px;
            color: var(--color-text-weak);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 8px;
            font-weight: 500;
        }

        .data-card .data-value {
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 800;
            color: var(--color-text-primary);
            letter-spacing: -0.5px;
            margin-bottom: 4px;
        }

        .data-card .data-trend {
            font-size: 12px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }

        .data-card .data-trend.up {
            color: var(--color-alert-orange);
        }
        .data-card .data-trend.down {
            color: var(--color-highlight-cyan);
        }

        .data-card .live-dot {
            position: absolute;
            top: 12px;
            right: 14px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-alert-orange);
            animation: livePulse 1.5s infinite;
        }

        .info-list-block {
            background: var(--color-card-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .info-list-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 20px;
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition-fast);
            cursor: pointer;
        }

        .info-list-item:last-child {
            border-bottom: none;
        }

        .info-list-item:hover {
            background: rgba(168, 85, 247, 0.03);
        }

        .info-thumb {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #E2E8F0;
        }

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

        .info-body .info-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-primary);
            line-height: 1.4;
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .info-badge {
            display: inline-block;
            font-size: 10px;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 10px;
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .info-badge.new {
            background: #FFF7ED;
            color: var(--color-alert-orange);
        }
        .info-badge.hot {
            background: #FEF2F2;
            color: #EF4444;
        }
        .info-badge.rec {
            background: #FAF5FF;
            color: var(--color-electric-purple);
        }

        .info-body .info-summary {
            font-size: 12px;
            color: var(--color-text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .info-body .info-meta {
            font-size: 11px;
            color: var(--color-text-weak);
            margin-top: 6px;
        }

        .topic-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            cursor: pointer;
            height: 220px;
            background: #E2E8F0;
            transition: all var(--transition-fast);
        }

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

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

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

        .topic-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 14, 20, 0.9) 0%, rgba(11, 14, 20, 0.3) 60%, rgba(11, 14, 20, 0.05) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
            z-index: 1;
        }

        .topic-card-overlay h3 {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .topic-card-overlay .topic-tag {
            display: inline-block;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: rgba(255, 255, 255, 0.9);
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 12px;
            width: fit-content;
            letter-spacing: 0.4px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--color-card-bg);
            transition: all var(--transition-fast);
            margin-bottom: 8px;
        }

        .faq-item:hover {
            border-color: #CBD5E1;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            background: transparent;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-primary);
            cursor: pointer;
            text-align: left;
            gap: 12px;
            letter-spacing: 0.2px;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(168, 85, 247, 0.03);
        }

        .faq-num {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--color-electric-purple);
            min-width: 28px;
            flex-shrink: 0;
        }

        .faq-toggle {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 2px solid var(--color-text-weak);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            flex-shrink: 0;
            font-weight: 700;
        }

        .faq-item.open .faq-toggle {
            border-color: var(--color-electric-purple);
            color: var(--color-electric-purple);
            transform: rotate(45deg);
            background: rgba(168, 85, 247, 0.08);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            background: #F8FAFC;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer-inner {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            padding-top: 4px;
        }

        .cta-section {
            background: var(--color-deep-obsidian);
            padding: 48px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(168, 85, 247, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-inner h2 {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-primary {
            display: inline-block;
            background: var(--color-electric-purple);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 15px;
            padding: 13px 32px;
            border-radius: 24px;
            letter-spacing: 0.5px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .btn-cta-primary:hover {
            background: var(--color-purple-hover);
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(168, 85, 247, 0.35);
        }

        .btn-cta-secondary {
            display: inline-block;
            background: transparent;
            color: #FFFFFF;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: 24px;
            border: 2px solid rgba(255, 255, 255, 0.4);
            letter-spacing: 0.5px;
            transition: all var(--transition-fast);
            cursor: pointer;
            margin-left: 12px;
        }

        .btn-cta-secondary:hover {
            border-color: var(--color-electric-purple);
            background: rgba(168, 85, 247, 0.15);
            color: #FFFFFF;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
        }

        .footer-grid h3,
        .footer-grid h4 {
            font-family: var(--font-display);
        }

        .footer-grid a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

        .footer-grid a:hover {
            color: var(--color-electric-purple);
        }

        @media (max-width: 1024px) {
            .data-cards-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .topic-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-category h1 {
                font-size: 30px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-container {
                padding: 0 20px;
            }
        }

        @media (max-width: 768px) {
            .sidebar-nav {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding-bottom: 70px;
            }
            .data-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .topic-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .hero-category {
                min-height: 340px;
                padding: 40px 20px;
            }
            .hero-category h1 {
                font-size: 26px;
            }
            .hero-category-desc {
                font-size: 14px;
            }
            .hero-tags-row {
                gap: 6px;
            }
            .hero-tag-link {
                font-size: 11px;
                padding: 6px 12px;
            }
            .section-spacing {
                padding: 32px 0;
            }
            .section-container {
                padding: 0 16px;
            }
            .section-header h2 {
                font-size: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .info-list-item {
                padding: 12px 14px;
                gap: 10px;
            }
            .info-thumb {
                width: 40px;
                height: 40px;
            }
            .cta-inner h2 {
                font-size: 22px;
            }
            .btn-cta-secondary {
                margin-left: 0;
                margin-top: 10px;
            }
        }

        @media (max-width: 520px) {
            .data-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .data-card {
                padding: 14px 12px;
            }
            .data-card .data-value {
                font-size: 20px;
            }
            .topic-cards-grid {
                grid-template-columns: 1fr;
            }
            .topic-card {
                height: 180px;
            }
            .hero-category {
                min-height: 300px;
                padding: 30px 16px;
            }
            .hero-category h1 {
                font-size: 22px;
            }
            .hero-tags-row {
                gap: 5px;
            }
            .hero-tag-link {
                font-size: 10px;
                padding: 5px 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .info-list-item {
                flex-direction: column;
                gap: 6px;
            }
            .info-thumb {
                width: 100%;
                height: 120px;
                border-radius: var(--radius-sm);
            }
        }

/* roulang page: category4 */
:root {
            --deep-obsidian: #0B0E14;
            --electric-purple: #A855F7;
            --purple-hover: #9333EA;
            --alert-orange: #F97316;
            --highlight-cyan: #22D3EE;
            --bg-page: #F8FAFC;
            --card-bg: #FFFFFF;
            --border-light: #E2E8F0;
            --text-primary: #1E293B;
            --text-secondary: #64748B;
            --text-weak: #94A3B8;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(168, 85, 247, 0.08);
            --sidebar-width: 240px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --font-data: 'Roboto Mono', 'SF Mono', 'Consolas', monospace;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 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-body);
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--electric-purple);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--electric-purple);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }
        input {
            font-family: inherit;
        }
        ul {
            list-style: none;
        }

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--deep-obsidian);
            display: flex;
            flex-direction: column;
            z-index: 100;
            overflow-y: auto;
            border-right: 1px solid rgba(255, 255, 255, 0.05);
        }
        .logo-area {
            padding: 24px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 8px;
        }
        .logo-text {
            display: inline-block;
            font-size: 20px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            position: relative;
            transition: color var(--transition-fast);
        }
        .logo-text:hover {
            color: var(--electric-purple);
        }
        .logo-text span {
            position: relative;
        }
        .logo-underline {
            width: 36px;
            height: 3px;
            background: var(--electric-purple);
            border-radius: 2px;
            margin-top: 6px;
        }
        .nav-menu {
            flex: 1;
            padding: 8px 12px;
        }
        .nav-menu li {
            margin-bottom: 2px;
        }
        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            transition: all var(--transition-fast);
            position: relative;
            border-left: 3px solid transparent;
        }
        .nav-menu a i {
            width: 18px;
            text-align: center;
            font-size: 13px;
            opacity: 0.7;
        }
        .nav-menu a:hover {
            background: rgba(168, 85, 247, 0.08);
            color: #FFFFFF;
        }
        .nav-menu a.active {
            background: rgba(168, 85, 247, 0.12);
            color: #FFFFFF;
            border-left-color: var(--electric-purple);
            font-weight: 600;
        }
        .nav-menu a.active i {
            opacity: 1;
            color: var(--electric-purple);
        }
        .nav-bottom {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .nav-bottom .fa-search {
            color: rgba(255, 255, 255, 0.6);
            font-size: 16px;
            cursor: pointer;
            transition: color var(--transition-fast);
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .nav-bottom .fa-search:hover {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.06);
        }
        .user-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--electric-purple);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background var(--transition-fast);
        }
        .user-avatar:hover {
            background: var(--purple-hover);
        }

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

        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--deep-obsidian);
            z-index: 200;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 0 4px;
            align-items: center;
            justify-content: space-around;
        }
        .mobile-tab-bar a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            font-size: 10px;
            color: rgba(255, 255, 255, 0.55);
            padding: 4px 6px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            min-width: 48px;
            text-align: center;
            white-space: nowrap;
        }
        .mobile-tab-bar a i {
            font-size: 16px;
            transition: color var(--transition-fast);
        }
        .mobile-tab-bar a.active {
            color: var(--electric-purple);
            font-weight: 600;
        }
        .mobile-tab-bar a.active i {
            color: var(--electric-purple);
        }
        .mobile-tab-bar a:hover {
            color: #FFFFFF;
        }

        @media (max-width: 768px) {
            .sidebar-nav {
                display: none;
            }
            .main-wrapper {
                margin-left: 0;
                padding-bottom: 64px;
            }
            .mobile-tab-bar {
                display: flex;
            }
        }
        @media (min-width: 769px) {
            .mobile-tab-bar {
                display: none !important;
            }
        }

        .section-container {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .section-spacing {
            padding: 48px 0;
        }
        @media (max-width: 768px) {
            .section-spacing {
                padding: 32px 0;
            }
            .section-container {
                padding: 0 16px;
            }
        }

        .hero-category {
            position: relative;
            padding: 56px 0 40px;
            background: linear-gradient(135deg, rgba(11, 14, 20, 0.92) 0%, rgba(30, 20, 50, 0.9) 60%, rgba(11, 14, 20, 0.88) 100%);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: #FFFFFF;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(168, 85, 247, 0.18) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(34, 211, 238, 0.08) 0%, transparent 50%);
            pointer-events: none;
        }
        .hero-category .hero-inner {
            position: relative;
            z-index: 2;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }
        .hero-badge:hover {
            background: rgba(168, 85, 247, 0.25);
            border-color: var(--electric-purple);
            color: #FFFFFF;
        }
        .hero-badge.live-badge {
            background: rgba(249, 115, 22, 0.2);
            border-color: var(--alert-orange);
            color: var(--alert-orange);
            animation: pulse-live 2s infinite;
        }
        @keyframes pulse-live {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.4);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(249, 115, 22, 0);
            }
        }
        .hero-category h1 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.3px;
            margin-bottom: 8px;
            color: #FFFFFF;
        }
        .hero-category .hero-subtitle {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .hero-category {
                padding: 36px 0 28px;
            }
            .hero-category h1 {
                font-size: 22px;
            }
            .hero-category .hero-subtitle {
                font-size: 13px;
            }
        }

        .data-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-top: -20px;
            position: relative;
            z-index: 10;
        }
        @media (max-width: 1024px) {
            .data-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
                margin-top: -16px;
            }
        }
        @media (max-width: 520px) {
            .data-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
                margin-top: -12px;
            }
        }
        .data-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            cursor: pointer;
            transition: all var(--transition-fast);
            position: relative;
            overflow: hidden;
        }
        .data-card:hover {
            border-color: var(--electric-purple);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .data-card .card-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.4px;
            margin-bottom: 6px;
        }
        .data-card .card-value {
            font-family: var(--font-data);
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }
        .data-card .card-trend {
            display: inline-flex;
            align-items: center;
            gap: 3px;
            font-size: 12px;
            font-weight: 600;
            margin-top: 4px;
        }
        .data-card .card-trend.up {
            color: var(--alert-orange);
        }
        .data-card .card-trend.down {
            color: var(--highlight-cyan);
        }
        .data-card .live-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--alert-orange);
            margin-right: 4px;
            animation: pulse-dot 1.2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 4px var(--alert-orange);
            }
            50% {
                opacity: 0.35;
                box-shadow: 0 0 10px var(--alert-orange);
            }
        }

        .news-list-section {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 28px 24px;
            margin-top: 20px;
        }
        .news-list-section h2 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-primary);
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-light);
            position: relative;
        }
        .news-list-section h2::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--electric-purple);
        }
        .news-item {
            display: flex;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            background: rgba(168, 85, 247, 0.02);
            padding-left: 6px;
            border-radius: var(--radius-sm);
        }
        .news-thumb {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: #F1F5F9;
            flex-shrink: 0;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--electric-purple);
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-body .news-title-row {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .news-body .news-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .news-badge {
            display: inline-block;
            padding: 2px 7px;
            border-radius: 10px;
            font-size: 10px;
            font-weight: 700;
            letter-spacing: 0.3px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .news-badge.new {
            background: #FFF7ED;
            color: var(--alert-orange);
        }
        .news-badge.hot {
            background: #FEF2F2;
            color: #EF4444;
        }
        .news-badge.rec {
            background: #FAF5FF;
            color: var(--electric-purple);
        }
        .news-body .news-summary {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-body .news-time {
            font-size: 11px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 20px;
        }
        @media (max-width: 640px) {
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }
        .topic-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            cursor: pointer;
            height: 200px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            background: #1E293B;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--electric-purple);
        }
        .topic-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .topic-card:hover img {
            transform: scale(1.04);
        }
        .topic-card .topic-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 18px;
            background: linear-gradient(transparent, rgba(11, 14, 20, 0.88));
            color: #FFFFFF;
        }
        .topic-card .topic-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 10px;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.4);
            background: rgba(255, 255, 255, 0.1);
            margin-bottom: 6px;
        }
        .topic-card .topic-title {
            font-size: 15px;
            font-weight: 700;
            line-height: 1.3;
        }
        .topic-card .topic-desc {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 3px;
            line-height: 1.4;
        }

        .faq-section {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 28px 24px;
            margin-top: 20px;
        }
        .faq-section h2 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-primary);
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-light);
            position: relative;
        }
        .faq-section h2::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--electric-purple);
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            overflow: hidden;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 0;
            cursor: pointer;
            font-weight: 600;
            font-size: 14px;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            user-select: none;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--electric-purple);
        }
        .faq-number {
            font-family: var(--font-data);
            font-size: 13px;
            font-weight: 700;
            color: var(--electric-purple);
            flex-shrink: 0;
            min-width: 24px;
        }
        .faq-icon {
            margin-left: auto;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-weak);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
            width: 20px;
            text-align: center;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--electric-purple);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding: 0 0 0 36px;
        }
        .faq-item.open .faq-answer {
            max-height: 280px;
            padding: 0 0 16px 36px;
        }

        .cta-section {
            background: linear-gradient(135deg, #0B0E14 0%, #1A1030 100%);
            border-radius: var(--radius-md);
            padding: 40px 32px;
            text-align: center;
            color: #FFFFFF;
            margin-top: 20px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(168, 85, 247, 0.2) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 22px;
            font-weight: 700;
            position: relative;
            z-index: 2;
        }
        .cta-section p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin: 8px 0 20px;
            position: relative;
            z-index: 2;
        }
        .cta-btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--electric-purple);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            z-index: 2;
            cursor: pointer;
            border: none;
        }
        .cta-btn:hover {
            background: var(--purple-hover);
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(168, 85, 247, 0.35);
            color: #FFFFFF;
        }
        .cta-btn-secondary {
            display: inline-block;
            padding: 11px 24px;
            background: transparent;
            color: #FFFFFF;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition-fast);
            position: relative;
            z-index: 2;
            cursor: pointer;
            margin-left: 10px;
        }
        .cta-btn-secondary:hover {
            border-color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
        }

        footer {
            background: #1E293B;
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 32px 20px;
            margin-top: 0;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            max-width: 1160px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 480px) {
            footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }
        footer h3,
        footer h4 {
            color: #FFFFFF;
            font-weight: 700;
        }
        footer h3 {
            font-size: 16px;
            margin-bottom: 10px;
        }
        footer h4 {
            font-size: 13px;
            margin-bottom: 10px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        footer ul li {
            margin-bottom: 4px;
            font-size: 13px;
        }
        footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        footer ul li a:hover {
            color: #FFFFFF;
        }
        footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 30px;
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            max-width: 1160px;
            margin-left: auto;
            margin-right: auto;
        }
        footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            margin: 0 8px;
            transition: color var(--transition-fast);
        }
        footer .footer-bottom a:hover {
            color: #FFFFFF;
        }

        .tag-cloud-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .tag-chip {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background: #F1F5F9;
            color: var(--text-secondary);
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .tag-chip:hover {
            background: #FAF5FF;
            border-color: var(--electric-purple);
            color: var(--electric-purple);
        }