/* roulang page: index */
:root {
      --bg-dark: #080C16;
      --bg-gradient: radial-gradient(circle at 50% 20%, #131f38 0%, #080c16 80%);
      --card-bg: rgba(19, 31, 56, 0.65);
      --card-border: 1px solid rgba(56, 189, 248, 0.2);
      --card-border-hover: 1px solid rgba(0, 242, 254, 0.5);
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --accent-cyan: #00F2FE;
      --accent-blue: #4FACFE;
      --accent-pink: #FF4B72;
      --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.45);
      --glow-cyan-lg: 0 0 28px rgba(0, 242, 254, 0.65);
      --radius-sm: 8px;
      --radius-md: 14px;
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    body {
      background: var(--bg-dark);
      background-image: var(--bg-gradient);
      background-attachment: fixed;
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--accent-cyan);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover {
      color: #ffffff;
    }

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

    /* 顶部卡片化导航面板 */
    .header-wrapper {
      position: sticky;
      top: 16px;
      z-index: 1000;
      padding: 0 20px;
      margin-bottom: 30px;
    }
    .nav-panel {
      max-width: 1320px;
      margin: 0 auto;
      background: rgba(14, 23, 38, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid rgba(56, 189, 248, 0.25);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
      border-radius: 16px;
      padding: 12px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      letter-spacing: 0.5px;
    }
    .brand-logo i {
      color: var(--accent-cyan);
      font-size: 1.4rem;
      filter: drop-shadow(0 0 8px var(--accent-cyan));
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      list-style: none;
      margin: 0;
    }
    .nav-item-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      font-size: 0.92rem;
      color: var(--text-muted);
      border-radius: 10px;
      border: 1px solid transparent;
      background: rgba(255, 255, 255, 0.03);
      transition: var(--transition);
    }
    .nav-item-pill:hover,
    .nav-item-pill.active {
      color: #fff;
      background: rgba(56, 189, 248, 0.12);
      border-color: rgba(56, 189, 248, 0.35);
      box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
    }
    .btn-nav-download {
      background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
      color: #040914;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: var(--glow-cyan);
      transition: var(--transition);
      border: none;
      font-size: 0.92rem;
    }
    .btn-nav-download:hover {
      box-shadow: var(--glow-cyan-lg);
      transform: translateY(-1px) scale(1.02);
      color: #000;
    }

    /* 布局通用规范 */
    .section-block {
      padding: 90px 0;
      position: relative;
    }
    .section-block.alt-bg {
      background: rgba(14, 23, 38, 0.4);
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1.05rem;
      max-width: 860px;
      line-height: 1.7;
    }
    .badge-tag {
      display: inline-block;
      padding: 4px 12px;
      font-size: 0.78rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 1px;
      border-radius: 6px;
      background: rgba(0, 242, 254, 0.1);
      color: var(--accent-cyan);
      border: 1px solid rgba(0, 242, 254, 0.3);
      margin-bottom: 12px;
    }

    /* 玻璃拟态卡片 */
    .glass-card {
      background: var(--card-bg);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: var(--card-border);
      border-radius: var(--radius-md);
      padding: 32px;
      height: 100%;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .glass-card:hover {
      border: var(--card-border-hover);
      box-shadow: 0 12px 30px rgba(0, 242, 254, 0.12);
      transform: translateY(-4px);
    }

    /* Hero 首屏 */
    .hero-section {
      padding: 70px 0 100px;
      background: url('/assets/images/c61d58bf555a92d8.jpg') center/cover no-repeat;
      position: relative;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(8, 12, 22, 0.88) 0%, rgba(8, 12, 22, 0.98) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-title {
      font-size: 3rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 24px;
      background: linear-gradient(120deg, #FFFFFF 30%, var(--accent-cyan) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-summary {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 32px;
      line-height: 1.8;
      max-width: 640px;
    }
    .hero-meta-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 36px;
    }
    .meta-tag-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 6px 14px;
      border-radius: 8px;
      font-size: 0.85rem;
      color: #CBD5E1;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .meta-tag-item i {
      color: var(--accent-cyan);
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }
    .btn-main-glow {
      background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
      color: #040914;
      font-weight: 700;
      padding: 15px 36px;
      border-radius: 12px;
      font-size: 1.05rem;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      box-shadow: var(--glow-cyan);
      transition: var(--transition);
      border: none;
    }
    .btn-main-glow:hover {
      box-shadow: var(--glow-cyan-lg);
      transform: translateY(-2px) scale(1.02);
      color: #000;
    }
    .btn-secondary-outline {
      border: 1px solid rgba(56, 189, 248, 0.35);
      background: rgba(56, 189, 248, 0.05);
      color: #fff;
      font-weight: 600;
      padding: 15px 30px;
      border-radius: 12px;
      font-size: 1.02rem;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      transition: var(--transition);
    }
    .btn-secondary-outline:hover {
      background: rgba(56, 189, 248, 0.15);
      border-color: var(--accent-cyan);
    }
    .terminal-card {
      background: rgba(9, 14, 26, 0.9);
      border: 1px solid rgba(0, 242, 254, 0.25);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    }
    .terminal-header {
      background: rgba(255, 255, 255, 0.04);
      padding: 12px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .terminal-dots {
      display: flex;
      gap: 6px;
    }
    .terminal-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .dot-red { background: #FF5F56; }
    .dot-yellow { background: #FFBD2E; }
    .dot-green { background: #27C93F; }
    .terminal-title {
      font-size: 0.8rem;
      color: var(--text-dim);
      font-family: monospace;
    }
    .terminal-body {
      padding: 24px;
      font-family: Consolas, Monaco, "Courier New", monospace;
      font-size: 0.88rem;
      line-height: 1.7;
      color: #A5B4FC;
    }
    .terminal-log-success { color: #34D399; }
    .terminal-log-alert { color: var(--accent-pink); }
    .terminal-log-accent { color: var(--accent-cyan); }

    /* 数据指标条 */
    .metric-value {
      font-size: 2.8rem;
      font-weight: 800;
      color: #fff;
      line-height: 1;
      margin-bottom: 8px;
      background: linear-gradient(135deg, #FFFFFF 20%, var(--accent-cyan) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .metric-label {
      font-size: 1rem;
      font-weight: 600;
      color: #E2E8F0;
      margin-bottom: 6px;
    }
    .metric-sub {
      font-size: 0.85rem;
      color: var(--text-dim);
    }

    /* 服务矩阵 */
    .feature-icon-box {
      width: 56px;
      height: 56px;
      border-radius: 12px;
      background: rgba(0, 242, 254, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-cyan);
      font-size: 1.5rem;
      margin-bottom: 20px;
      border: 1px solid rgba(0, 242, 254, 0.25);
    }
    .feature-card-title {
      font-size: 1.25rem;
      font-weight: 600;
      margin-bottom: 12px;
      color: #fff;
    }
    .feature-card-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比板块 */
    .compare-card {
      border-radius: var(--radius-md);
      padding: 36px;
      height: 100%;
    }
    .compare-bad {
      background: rgba(239, 68, 68, 0.05);
      border: 1px solid rgba(239, 68, 68, 0.2);
    }
    .compare-good {
      background: rgba(16, 185, 129, 0.06);
      border: 1px solid rgba(0, 242, 254, 0.35);
      box-shadow: 0 0 24px rgba(0, 242, 254, 0.1);
    }
    .compare-list {
      list-style: none;
      margin: 24px 0 0;
    }
    .compare-list li {
      margin-bottom: 16px;
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.96rem;
      color: var(--text-muted);
    }

    /* 时间线里程碑 */
    .timeline-container {
      position: relative;
      padding-left: 36px;
      border-left: 2px dashed rgba(56, 189, 248, 0.3);
      margin-left: 10px;
    }
    .timeline-item {
      position: relative;
      margin-bottom: 48px;
    }
    .timeline-dot {
      position: absolute;
      left: -46px;
      top: 4px;
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: var(--bg-dark);
      border: 3px solid var(--accent-cyan);
      box-shadow: 0 0 10px var(--accent-cyan);
    }
    .timeline-year {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--accent-cyan);
      text-transform: uppercase;
      margin-bottom: 4px;
    }
    .timeline-title {
      font-size: 1.25rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 8px;
    }
    .timeline-desc {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.6;
    }

    /* 资讯列表 */
    .article-item {
      display: flex;
      gap: 24px;
      background: var(--card-bg);
      border: var(--card-border);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 20px;
      transition: var(--transition);
      align-items: center;
    }
    .article-item:hover {
      border: var(--card-border-hover);
      transform: translateX(6px);
    }
    .article-thumb {
      width: 220px;
      height: 130px;
      flex-shrink: 0;
      overflow: hidden;
      border-radius: 10px;
    }
    .article-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .article-item:hover .article-thumb img {
      transform: scale(1.05);
    }
    .article-content h3 {
      font-size: 1.2rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 8px;
    }
    .article-content p {
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.6;
      margin-bottom: 10px;
    }
    .article-meta {
      font-size: 0.82rem;
      color: var(--text-dim);
      display: flex;
      gap: 16px;
    }

    /* 快速上手步骤 */
    .step-box {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 30px;
      position: relative;
    }
    .step-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: rgba(56, 189, 248, 0.25);
      line-height: 1;
      margin-bottom: 12px;
      font-family: monospace;
    }

    /* FAQ */
    .faq-item {
      background: var(--card-bg);
      border: var(--card-border);
      border-radius: 12px;
      margin-bottom: 16px;
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 1.1rem;
      font-weight: 600;
      color: #fff;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: var(--transition);
    }
    .faq-question:hover {
      color: var(--accent-cyan);
    }
    .faq-answer {
      padding: 0 24px 22px;
      color: var(--text-muted);
      font-size: 0.96rem;
      line-height: 1.7;
    }

    /* 底端表单转化 */
    .convert-panel {
      background: linear-gradient(135deg, rgba(19, 31, 56, 0.9) 0%, rgba(14, 23, 38, 0.95) 100%);
      border: 1px solid rgba(0, 242, 254, 0.35);
      box-shadow: 0 0 40px rgba(0, 242, 254, 0.15);
      border-radius: 20px;
      padding: 50px 40px;
    }
    .custom-input, .custom-select {
      background: rgba(8, 12, 22, 0.7);
      border: 1px solid rgba(56, 189, 248, 0.3);
      color: #fff;
      border-radius: 8px;
      padding: 12px 16px;
      font-size: 0.95rem;
      width: 100%;
      height: 48px;
      margin-bottom: 16px;
      transition: var(--transition);
    }
    .custom-input:focus, .custom-select:focus {
      border-color: var(--accent-cyan);
      outline: none;
      box-shadow: 0 0 12px rgba(0, 242, 254, 0.3);
      background: rgba(8, 12, 22, 0.9);
    }

    /* 页脚 */
    .site-footer {
      background: #04070E;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 70px 0 30px;
      font-size: 0.92rem;
      color: var(--text-muted);
    }
    .footer-col-title {
      font-size: 1.05rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-links-list {
      list-style: none;
      margin: 0;
    }
    .footer-links-list li {
      margin-bottom: 12px;
    }
    .footer-links-list a {
      color: var(--text-muted);
    }
    .footer-links-list a:hover {
      color: var(--accent-cyan);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 28px;
      margin-top: 50px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 14px;
      color: var(--text-dim);
      font-size: 0.85rem;
    }

    @media screen and (max-width: 1024px) {
      .hero-title { font-size: 2.4rem; }
      .article-item { flex-direction: column; align-items: flex-start; }
      .article-thumb { width: 100%; height: 200px; }
    }
    @media screen and (max-width: 768px) {
      .header-wrapper { padding: 0 10px; top: 10px; }
      .nav-panel { flex-wrap: wrap; gap: 14px; }
      .nav-links { overflow-x: auto; width: 100%; padding-bottom: 6px; }
      .hero-title { font-size: 2rem; }
      .section-block { padding: 60px 0; }
      .metric-value { font-size: 2.2rem; }
      .convert-panel { padding: 30px 20px; }
    }

/* roulang page: category1 */
:root {
            --bg-dark: #080C16;
            --bg-gradient: radial-gradient(circle at 50% 20%, #131f38 0%, #080c16 80%);
            --card-bg: rgba(19, 31, 56, 0.65);
            --card-border: 1px solid rgba(56, 189, 248, 0.2);
            --card-border-hover: 1px solid rgba(0, 242, 254, 0.5);
            --text-main: #FFFFFF;
            --text-muted: #94A3B8;
            --text-dim: #64748B;
            --accent-cyan: #00F2FE;
            --accent-blue: #4FACFE;
            --accent-pink: #FF4B72;
            --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.45);
            --glow-cyan-lg: 0 0 28px rgba(0, 242, 254, 0.65);
            --radius-sm: 8px;
            --radius-md: 14px;
            --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        body {
            background: var(--bg-dark);
            background-image: var(--bg-gradient);
            background-attachment: fixed;
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #ffffff;
        }

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

        /* 顶部卡片化导航面板 */
        .header-wrapper {
            position: sticky;
            top: 16px;
            z-index: 1000;
            padding: 0 20px;
            margin-bottom: 24px;
        }
        .nav-panel {
            max-width: 1320px;
            margin: 0 auto;
            background: rgba(14, 23, 38, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(56, 189, 248, 0.25);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            border-radius: 16px;
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .brand-logo i {
            color: var(--accent-cyan);
            font-size: 1.4rem;
            filter: drop-shadow(0 0 8px var(--accent-cyan));
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
        }
        .nav-item-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            font-size: 0.92rem;
            color: var(--text-muted);
            border-radius: 10px;
            border: 1px solid transparent;
            background: rgba(255, 255, 255, 0.03);
            transition: var(--transition);
        }
        .nav-item-pill:hover,
        .nav-item-pill.active {
            color: #fff;
            background: rgba(56, 189, 248, 0.12);
            border-color: rgba(56, 189, 248, 0.35);
            box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
        }
        .btn-nav-download {
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
            color: #040914;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: var(--glow-cyan);
            transition: var(--transition);
            border: none;
            font-size: 0.92rem;
        }
        .btn-nav-download:hover {
            box-shadow: var(--glow-cyan-lg);
            transform: translateY(-1px) scale(1.02);
            color: #000;
        }

        /* 布局基础 */
        .section-block {
            padding: 70px 0;
            position: relative;
        }
        .section-block.alt-bg {
            background: rgba(14, 23, 38, 0.45);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .section-header {
            margin-bottom: 38px;
        }
        .section-title {
            font-size: 1.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 820px;
            line-height: 1.7;
        }
        .badge-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            border-radius: 6px;
            background: rgba(0, 242, 254, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 242, 254, 0.3);
            margin-bottom: 10px;
        }

        /* 卡片基础 */
        .glass-card {
            background: var(--card-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: var(--card-border);
            border-radius: var(--radius-md);
            padding: 30px;
            height: 100%;
            transition: var(--transition);
            position: relative;
        }
        .glass-card:hover {
            border: var(--card-border-hover);
            box-shadow: 0 10px 28px rgba(0, 242, 254, 0.12);
            transform: translateY(-4px);
        }

        /* 分类专属头部横幅 */
        .category-banner {
            padding: 45px 0 35px;
            border-bottom: 1px solid rgba(56, 189, 248, 0.15);
            position: relative;
        }
        .category-h1 {
            font-size: 2.3rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .sys-detect-badge {
            font-size: 0.85rem;
            font-weight: 500;
            background: rgba(16, 185, 129, 0.15);
            border: 1px solid rgba(16, 185, 129, 0.4);
            color: #34D399;
            padding: 5px 14px;
            border-radius: 30px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .status-dot {
            width: 8px;
            height: 8px;
            background: #10B981;
            border-radius: 50%;
            box-shadow: 0 0 8px #10B981;
        }

        /* 筛选控制栏 */
        .filter-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 18px 24px;
            background: rgba(19, 31, 56, 0.5);
            border-radius: var(--radius-md);
            border: var(--card-border);
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .filter-label {
            font-size: 0.88rem;
            color: var(--text-dim);
            font-weight: 600;
        }
        .filter-chip {
            padding: 7px 16px;
            font-size: 0.86rem;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-muted);
            border: 1px solid rgba(255, 255, 255, 0.08);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-chip.active,
        .filter-chip:hover {
            background: rgba(0, 242, 254, 0.15);
            border-color: rgba(0, 242, 254, 0.4);
            color: #fff;
        }

        /* 版本下载卡片 */
        .release-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            background: rgba(19, 31, 56, 0.7);
            border: var(--card-border);
            border-radius: var(--radius-md);
            padding: 30px;
            height: 100%;
            transition: var(--transition);
        }
        .release-card:hover {
            border-color: rgba(0, 242, 254, 0.45);
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
        }
        .release-head {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding-bottom: 16px;
        }
        .release-ver-title {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .release-tag-os {
            background: rgba(79, 172, 254, 0.15);
            border: 1px solid rgba(79, 172, 254, 0.3);
            color: var(--accent-blue);
            font-size: 0.78rem;
            padding: 4px 10px;
            border-radius: 6px;
        }
        .release-meta-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 20px;
            background: rgba(8, 12, 22, 0.5);
            padding: 14px;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
        }
        .release-meta-grid span {
            color: var(--text-dim);
        }
        .release-meta-grid strong {
            color: var(--text-main);
            display: block;
            font-weight: 500;
            margin-top: 2px;
        }
        .hash-code-block {
            background: rgba(0, 0, 0, 0.4);
            border: 1px dashed rgba(255, 255, 255, 0.15);
            border-radius: 6px;
            padding: 10px 14px;
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            font-size: 0.75rem;
            color: #38BDF8;
            margin-bottom: 22px;
            word-break: break-all;
        }
        .btn-action-download {
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
            color: #040914 !important;
            font-weight: 600;
            padding: 12px 20px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            box-shadow: var(--glow-cyan);
            width: 100%;
            transition: var(--transition);
        }
        .btn-action-download:hover {
            box-shadow: var(--glow-cyan-lg);
            transform: scale(1.02);
        }

        /* 列表底部单独加载按钮 */
        .list-more-container {
            text-align: center;
            margin-top: 40px;
        }
        .btn-load-more {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(56, 189, 248, 0.3);
            color: var(--text-main);
            padding: 12px 32px;
            border-radius: 30px;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .btn-load-more:hover {
            background: rgba(0, 242, 254, 0.12);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: var(--glow-cyan);
        }

        /* 配置参数矩阵表 */
        .specs-table-wrapper {
            background: var(--card-bg);
            border: var(--card-border);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .specs-table {
            width: 100%;
            border-collapse: collapse;
            margin: 0;
            background: transparent;
            color: var(--text-main);
        }
        .specs-table th {
            background: rgba(14, 23, 38, 0.9);
            color: var(--accent-cyan);
            font-size: 0.92rem;
            font-weight: 600;
            padding: 16px 20px;
            border-bottom: 1px solid rgba(56, 189, 248, 0.2);
            text-align: left;
        }
        .specs-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .specs-table tr:last-child td {
            border-bottom: none;
        }
        .specs-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
            color: #fff;
        }

        /* 序号步骤组件 */
        .step-num-box {
            display: flex;
            align-items: flex-start;
            gap: 20px;
        }
        .step-circle {
            width: 44px;
            height: 44px;
            background: rgba(0, 242, 254, 0.1);
            border: 1px solid var(--accent-cyan);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-weight: 700;
            font-size: 1.15rem;
            flex-shrink: 0;
            box-shadow: var(--glow-cyan);
        }

        /* FAQ 风琴组件 */
        .faq-item-card {
            background: var(--card-bg);
            border: var(--card-border);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 16px;
            transition: var(--transition);
        }
        .faq-item-card:hover {
            border-color: rgba(56, 189, 248, 0.4);
        }
        .faq-question {
            font-size: 1.08rem;
            font-weight: 600;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
        }
        .faq-question i {
            color: var(--accent-cyan);
        }
        .faq-answer {
            color: var(--text-muted);
            font-size: 0.94rem;
            line-height: 1.7;
            padding-left: 28px;
            margin: 0;
        }

        /* 页脚统一 */
        .site-footer {
            background: #04070F;
            border-top: 1px solid rgba(56, 189, 248, 0.15);
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-col-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .footer-links-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links-list li {
            margin-bottom: 10px;
        }
        .footer-links-list a {
            color: var(--text-dim);
            font-size: 0.88rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links-list a:hover {
            color: var(--accent-cyan);
            transform: translateX(4px);
        }
        .footer-bottom {
            margin-top: 50px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.84rem;
            color: var(--text-dim);
        }

        /* 移动端与响应式断点 */
        @media screen and (max-width: 1024px) {
            .nav-panel {
                flex-wrap: wrap;
                gap: 14px;
            }
        }
        @media screen and (max-width: 768px) {
            .nav-links {
                order: 3;
                width: 100%;
                justify-content: space-around;
                overflow-x: auto;
                padding-bottom: 4px;
            }
            .nav-item-pill {
                padding: 6px 12px;
                font-size: 0.82rem;
            }
            .section-block {
                padding: 50px 0;
            }
            .category-h1 {
                font-size: 1.7rem;
            }
            .release-meta-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category2 */
:root {
      --bg-dark: #080C16;
      --bg-gradient: radial-gradient(circle at 50% 20%, #131f38 0%, #080c16 80%);
      --card-bg: rgba(19, 31, 56, 0.65);
      --card-border: 1px solid rgba(56, 189, 248, 0.2);
      --card-border-hover: 1px solid rgba(0, 242, 254, 0.5);
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --accent-cyan: #00F2FE;
      --accent-blue: #4FACFE;
      --accent-pink: #FF4B72;
      --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.45);
      --glow-cyan-lg: 0 0 28px rgba(0, 242, 254, 0.65);
      --radius-sm: 8px;
      --radius-md: 14px;
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    * {
      box-sizing: border-box;
    }
    body {
      background: var(--bg-dark);
      background-image: var(--bg-gradient);
      background-attachment: fixed;
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      margin: 0;
      padding: 0;
    }
    a {
      color: var(--accent-cyan);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover {
      color: #ffffff;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-sm);
    }
    .header-wrapper {
      position: sticky;
      top: 16px;
      z-index: 1000;
      padding: 0 20px;
      margin-bottom: 24px;
    }
    .nav-panel {
      max-width: 1320px;
      margin: 0 auto;
      background: rgba(14, 23, 38, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid rgba(56, 189, 248, 0.25);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
      border-radius: 16px;
      padding: 12px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      letter-spacing: 0.5px;
    }
    .brand-logo i {
      color: var(--accent-cyan);
      font-size: 1.4rem;
      filter: drop-shadow(0 0 8px var(--accent-cyan));
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-item-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      font-size: 0.92rem;
      color: var(--text-muted);
      border-radius: 10px;
      border: 1px solid transparent;
      background: rgba(255, 255, 255, 0.03);
      transition: var(--transition);
    }
    .nav-item-pill:hover,
    .nav-item-pill.active {
      color: #fff;
      background: rgba(56, 189, 248, 0.12);
      border-color: rgba(56, 189, 248, 0.35);
      box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
    }
    .btn-nav-download {
      background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
      color: #040914;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: var(--glow-cyan);
      transition: var(--transition);
      border: none;
      font-size: 0.92rem;
    }
    .btn-nav-download:hover {
      box-shadow: var(--glow-cyan-lg);
      transform: translateY(-1px) scale(1.02);
      color: #000;
    }
    .category-banner {
      padding: 60px 0 40px;
      background: url('/assets/images/232468b92148d167.jpg') center/cover no-repeat;
      position: relative;
      border-bottom: 1px solid rgba(56, 189, 248, 0.2);
    }
    .category-banner-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(8, 12, 22, 0.82) 0%, rgba(8, 12, 22, 0.96) 100%);
    }
    .category-banner-content {
      position: relative;
      z-index: 2;
    }
    .category-h1 {
      font-size: 2.5rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: #fff;
      letter-spacing: -0.5px;
    }
    .category-h1 span {
      background: linear-gradient(120deg, #FFFFFF 30%, var(--accent-cyan) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .category-intro {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 880px;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .banner-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .banner-tag {
      background: rgba(0, 242, 254, 0.08);
      border: 1px solid rgba(0, 242, 254, 0.25);
      color: var(--accent-cyan);
      font-size: 0.85rem;
      padding: 4px 12px;
      border-radius: 6px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .section-block {
      padding: 80px 0;
      position: relative;
    }
    .section-block.alt-bg {
      background: rgba(14, 23, 38, 0.45);
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      margin-bottom: 40px;
    }
    .section-title {
      font-size: 1.9rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1rem;
      max-width: 820px;
      line-height: 1.6;
    }
    .badge-tag {
      display: inline-block;
      padding: 4px 12px;
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      border-radius: 6px;
      background: rgba(0, 242, 254, 0.1);
      color: var(--accent-cyan);
      border: 1px solid rgba(0, 242, 254, 0.3);
      margin-bottom: 10px;
    }
    .glass-card {
      background: var(--card-bg);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: var(--card-border);
      border-radius: var(--radius-md);
      padding: 30px;
      height: 100%;
      transition: var(--transition);
      position: relative;
    }
    .glass-card:hover {
      border: var(--card-border-hover);
      box-shadow: 0 12px 30px rgba(0, 242, 254, 0.12);
      transform: translateY(-4px);
    }
    .filter-panel {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 30px;
    }
    .filter-btn {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.12);
      color: var(--text-muted);
      padding: 10px 20px;
      border-radius: 10px;
      font-size: 0.9rem;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
    }
    .filter-btn:hover,
    .filter-btn.active {
      color: #fff;
      background: rgba(56, 189, 248, 0.15);
      border-color: var(--accent-cyan);
      box-shadow: 0 0 14px rgba(0, 242, 254, 0.2);
    }
    .api-row-item {
      background: var(--card-bg);
      backdrop-filter: blur(12px);
      border: var(--card-border);
      border-radius: var(--radius-md);
      padding: 24px 28px;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      transition: var(--transition);
    }
    .api-row-item:hover {
      border: var(--card-border-hover);
      box-shadow: 0 8px 24px rgba(0, 242, 254, 0.1);
      transform: translateX(4px);
    }
    .api-info-main {
      flex: 1;
    }
    .api-title-wrap {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 8px;
    }
    .api-method-badge {
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 8px;
      border-radius: 4px;
      background: rgba(0, 242, 254, 0.2);
      color: var(--accent-cyan);
      border: 1px solid rgba(0, 242, 254, 0.4);
    }
    .api-method-badge.grpc {
      background: rgba(79, 172, 254, 0.2);
      color: var(--accent-blue);
      border-color: rgba(79, 172, 254, 0.4);
    }
    .api-method-badge.sdk {
      background: rgba(255, 75, 114, 0.2);
      color: var(--accent-pink);
      border-color: rgba(255, 75, 114, 0.4);
    }
    .api-name {
      font-size: 1.15rem;
      font-weight: 600;
      color: #fff;
    }
    .api-desc {
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.5;
      margin-bottom: 8px;
    }
    .api-metrics-list {
      display: flex;
      gap: 20px;
      font-size: 0.82rem;
      color: var(--text-dim);
    }
    .api-metrics-list span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .api-metrics-list span strong {
      color: var(--text-muted);
    }
    .api-action-group {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .btn-action-primary {
      background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
      color: #050b14;
      font-weight: 600;
      padding: 9px 18px;
      border-radius: 8px;
      font-size: 0.88rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 0 14px rgba(0, 242, 254, 0.3);
      transition: var(--transition);
    }
    .btn-action-primary:hover {
      box-shadow: var(--glow-cyan-lg);
      transform: translateY(-2px);
      color: #000;
    }
    .btn-action-secondary {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: #CBD5E1;
      padding: 9px 16px;
      border-radius: 8px;
      font-size: 0.88rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition);
    }
    .btn-action-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.3);
      color: #fff;
    }
    .metric-data-card {
      background: var(--card-bg);
      border: var(--card-border);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      text-align: center;
      backdrop-filter: blur(12px);
      transition: var(--transition);
    }
    .metric-data-card:hover {
      border: var(--card-border-hover);
      transform: translateY(-4px);
    }
    .metric-num {
      font-size: 2.6rem;
      font-weight: 800;
      color: var(--accent-cyan);
      margin-bottom: 6px;
      line-height: 1.1;
      text-shadow: 0 0 16px rgba(0, 242, 254, 0.4);
    }
    .metric-name {
      font-size: 1rem;
      color: #fff;
      font-weight: 600;
      margin-bottom: 6px;
    }
    .metric-sub {
      font-size: 0.85rem;
      color: var(--text-dim);
    }
    .arch-diagram-card {
      background: rgba(14, 23, 38, 0.7);
      border: var(--card-border);
      border-radius: var(--radius-md);
      padding: 36px;
      backdrop-filter: blur(16px);
    }
    .arch-node-box {
      background: rgba(255, 255, 255, 0.03);
      border: 1px dashed rgba(56, 189, 248, 0.3);
      border-radius: 10px;
      padding: 20px;
      height: 100%;
    }
    .arch-node-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--accent-cyan);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .arch-node-item {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 8px;
      display: flex;
      align-items: flex-start;
      gap: 6px;
    }
    .arch-node-item i {
      color: var(--accent-blue);
      margin-top: 4px;
      font-size: 0.75rem;
    }
    .edition-compare-card {
      background: var(--card-bg);
      border: var(--card-border);
      border-radius: var(--radius-md);
      padding: 32px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .edition-tag {
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .edition-tag.community {
      background: rgba(255, 255, 255, 0.1);
      color: #E2E8F0;
    }
    .edition-tag.cluster {
      background: rgba(0, 242, 254, 0.15);
      color: var(--accent-cyan);
      border: 1px solid rgba(0, 242, 254, 0.3);
    }
    .edition-title {
      font-size: 1.4rem;
      color: #fff;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .edition-features {
      list-style: none;
      margin: 0 0 24px 0;
      padding: 0;
    }
    .edition-features li {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .edition-features li i {
      color: var(--accent-cyan);
      font-size: 0.85rem;
    }
    .faq-accordion-item {
      background: var(--card-bg);
      border: var(--card-border);
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-accordion-item:hover {
      border-color: rgba(56, 189, 248, 0.4);
    }
    .faq-accordion-header {
      padding: 20px 24px;
      cursor: pointer;
      font-weight: 600;
      color: #fff;
      font-size: 1.05rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: rgba(255, 255, 255, 0.02);
    }
    .faq-accordion-header i {
      color: var(--accent-cyan);
      transition: var(--transition);
    }
    .faq-accordion-body {
      padding: 0 24px 20px 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }
    .site-footer {
      background: #04070D;
      border-top: 1px solid rgba(56, 189, 248, 0.15);
      padding: 60px 0 30px;
      color: var(--text-muted);
    }
    .footer-col-title {
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      color: var(--text-muted);
      font-size: 0.88rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .footer-links-list a:hover {
      color: var(--accent-cyan);
    }
    .footer-bottom {
      margin-top: 48px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: var(--text-dim);
    }
    @media (max-width: 1024px) {
      .nav-panel {
        flex-direction: column;
        gap: 16px;
      }
      .nav-links {
        flex-wrap: wrap;
        justify-content: center;
      }
      .api-row-item {
        flex-direction: column;
        align-items: flex-start;
      }
      .api-action-group {
        width: 100%;
        justify-content: flex-start;
      }
    }
    @media (max-width: 768px) {
      .category-h1 {
        font-size: 1.85rem;
      }
      .section-block {
        padding: 50px 0;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }

/* roulang page: category3 */
:root {
      --bg-dark: #080C16;
      --bg-gradient: radial-gradient(circle at 50% 20%, #131f38 0%, #080c16 80%);
      --card-bg: rgba(19, 31, 56, 0.65);
      --card-border: 1px solid rgba(56, 189, 248, 0.2);
      --card-border-hover: 1px solid rgba(0, 242, 254, 0.5);
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --accent-cyan: #00F2FE;
      --accent-blue: #4FACFE;
      --accent-pink: #FF4B72;
      --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.45);
      --glow-cyan-lg: 0 0 28px rgba(0, 242, 254, 0.65);
      --radius-sm: 8px;
      --radius-md: 14px;
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    body {
      background: var(--bg-dark);
      background-image: var(--bg-gradient);
      background-attachment: fixed;
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: var(--accent-cyan);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover {
      color: #ffffff;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-sm);
    }
    .header-wrapper {
      position: sticky;
      top: 16px;
      z-index: 1000;
      padding: 0 20px;
      margin-bottom: 30px;
    }
    .nav-panel {
      max-width: 1320px;
      margin: 0 auto;
      background: rgba(14, 23, 38, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid rgba(56, 189, 248, 0.25);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
      border-radius: 16px;
      padding: 12px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      letter-spacing: 0.5px;
    }
    .brand-logo i {
      color: var(--accent-cyan);
      font-size: 1.4rem;
      filter: drop-shadow(0 0 8px var(--accent-cyan));
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      list-style: none;
      margin: 0;
    }
    .nav-item-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      font-size: 0.92rem;
      color: var(--text-muted);
      border-radius: 10px;
      border: 1px solid transparent;
      background: rgba(255, 255, 255, 0.03);
      transition: var(--transition);
    }
    .nav-item-pill:hover,
    .nav-item-pill.active {
      color: #fff;
      background: rgba(56, 189, 248, 0.12);
      border-color: rgba(56, 189, 248, 0.35);
      box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
    }
    .btn-nav-download {
      background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
      color: #040914;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: var(--glow-cyan);
      transition: var(--transition);
      border: none;
      font-size: 0.92rem;
    }
    .btn-nav-download:hover {
      box-shadow: var(--glow-cyan-lg);
      transform: translateY(-1px) scale(1.02);
      color: #000;
    }
    .section-block {
      padding: 80px 0;
      position: relative;
    }
    .section-block.alt-bg {
      background: rgba(14, 23, 38, 0.4);
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      margin-bottom: 40px;
    }
    .section-title {
      font-size: 1.9rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1rem;
      max-width: 800px;
      line-height: 1.7;
    }
    .badge-tag {
      display: inline-block;
      padding: 4px 12px;
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      border-radius: 6px;
      background: rgba(0, 242, 254, 0.1);
      color: var(--accent-cyan);
      border: 1px solid rgba(0, 242, 254, 0.3);
      margin-bottom: 10px;
    }
    .glass-card {
      background: var(--card-bg);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: var(--card-border);
      border-radius: var(--radius-md);
      padding: 28px;
      height: 100%;
      transition: var(--transition);
    }
    .glass-card:hover {
      border: var(--card-border-hover);
      box-shadow: 0 10px 26px rgba(0, 242, 254, 0.12);
      transform: translateY(-4px);
    }

    /* 分类专属样式 */
    .cat-header-banner {
      padding: 40px 0 60px;
      background: linear-gradient(180deg, rgba(14, 23, 38, 0.8) 0%, rgba(8, 12, 22, 0.95) 100%);
      border-bottom: 1px solid rgba(56, 189, 248, 0.15);
    }
    .cat-main-h1 {
      font-size: 2.4rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
      background: linear-gradient(120deg, #FFFFFF 40%, var(--accent-cyan) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .filter-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .filter-item-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 10px;
      padding: 12px 20px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #CBD5E1;
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-item-card:hover, .filter-item-card.active {
      border-color: var(--accent-cyan);
      background: rgba(0, 242, 254, 0.08);
      color: #FFF;
      box-shadow: 0 0 12px rgba(0, 242, 254, 0.15);
    }
    .filter-item-card i {
      color: var(--accent-cyan);
    }
    .model-meta-item {
      display: flex;
      justify-content: space-between;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.88rem;
    }
    .model-meta-item span:first-child {
      color: var(--text-dim);
    }
    .model-meta-item span:last-child {
      color: #E2E8F0;
      font-family: monospace;
    }
    .btn-download-action {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      padding: 10px 16px;
      margin-top: 20px;
      background: rgba(0, 242, 254, 0.12);
      border: 1px solid var(--accent-cyan);
      color: var(--accent-cyan);
      font-weight: 600;
      border-radius: 8px;
      gap: 8px;
      font-size: 0.9rem;
      transition: var(--transition);
    }
    .btn-download-action:hover {
      background: var(--accent-cyan);
      color: #040914;
      box-shadow: var(--glow-cyan);
    }
    .code-console {
      background: #050811;
      border: 1px solid rgba(56, 189, 248, 0.2);
      border-radius: 10px;
      padding: 20px;
      font-family: "Fira Code", Consolas, Monaco, monospace;
      font-size: 0.88rem;
      color: #38BDF8;
      overflow-x: auto;
      line-height: 1.7;
    }
    .code-console .comment {
      color: #64748B;
    }
    .code-console .highlight {
      color: #00F2FE;
      font-weight: 600;
    }
    .timeline-node {
      position: relative;
      padding-left: 28px;
      margin-bottom: 24px;
      border-left: 2px solid rgba(56, 189, 248, 0.3);
    }
    .timeline-node::before {
      content: "";
      position: absolute;
      left: -6px;
      top: 4px;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--accent-cyan);
      box-shadow: 0 0 8px var(--accent-cyan);
    }
    .accordion-box {
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 10px;
      margin-bottom: 14px;
      background: rgba(19, 31, 56, 0.4);
      padding: 18px 24px;
    }
    .accordion-title-wrap {
      font-weight: 600;
      color: #FFF;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
    }
    .accordion-body-text {
      color: var(--text-muted);
      font-size: 0.92rem;
      margin-top: 10px;
      line-height: 1.6;
    }

    /* 页脚 */
    .site-footer {
      background: #050811;
      border-top: 1px solid rgba(56, 189, 248, 0.15);
      padding: 70px 0 30px;
      color: var(--text-muted);
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-links-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      color: var(--text-muted);
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .footer-links-list a:hover {
      color: var(--accent-cyan);
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      margin-top: 50px;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: var(--text-dim);
    }

    @media (max-width: 992px) {
      .nav-panel {
        flex-wrap: wrap;
        gap: 16px;
      }
      .nav-links {
        overflow-x: auto;
        width: 100%;
        padding-bottom: 6px;
      }
      .btn-nav-download {
        display: none;
      }
      .cat-main-h1 {
        font-size: 1.85rem;
      }
    }
    @media (max-width: 640px) {
      .section-block {
        padding: 50px 0;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }