/* roulang page: index */
:root {
      --primary: #1D4ED8;
      --primary-dark: #1E40AF;
      --accent: #0F172A;
      --highlight: #EA580C;
      --bg-light: #F5F8FA;
      --bg-white: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-light: rgba(30, 64, 175, 0.08);
      --card-shadow: 0 10px 30px -5px rgba(30, 64, 175, 0.06), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.8;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    img { max-width: 100%; height: auto; display: block; }

    /* 顶部导航 */
    .top-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-light);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      font-size: 24px;
      color: var(--primary);
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
      margin: 0;
    }
    .nav-menu li a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }
    .nav-menu li a.active,
    .nav-menu li a:hover {
      color: var(--primary);
    }
    .nav-menu li a.active::after,
    .nav-menu li a:hover::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .search-box {
      position: relative;
      width: 190px;
    }
    .search-box input {
      width: 100%;
      height: 36px;
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      border-radius: 20px;
      padding: 0 14px 0 34px;
      font-size: 13px;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
      margin-bottom: 0;
    }
    .search-box input:focus {
      border-color: var(--primary);
      background: #fff;
    }
    .search-box i {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 13px;
      color: var(--text-muted);
    }
    .btn-secondary {
      padding: 8px 16px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      border: 1px solid var(--border-light);
      border-radius: 20px;
      background: #fff;
    }
    .btn-secondary:hover {
      color: var(--primary);
      border-color: var(--primary);
    }
    .btn-primary {
      padding: 9px 20px;
      font-size: 13px;
      font-weight: 600;
      color: #fff;
      background: var(--primary);
      border-radius: 20px;
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 4px 12px rgba(29, 78, 216, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      color: #fff;
    }
    .btn-accent {
      background: var(--highlight);
      color: #fff;
      padding: 10px 24px;
      border-radius: 20px;
      font-weight: 600;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-accent:hover {
      background: #c2410c;
      color: #fff;
    }

    /* 板块通用间距与标题 */
    section {
      padding: 80px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-white);
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }
    .section-title-wrap {
      margin-bottom: 48px;
    }
    .badge-sub {
      display: inline-block;
      padding: 4px 12px;
      background: rgba(29, 78, 216, 0.08);
      color: var(--primary);
      border-radius: 4px;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .section-h2 {
      font-size: 30px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.35;
      letter-spacing: -0.5px;
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.7;
      margin: 0;
    }
    .card-base {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      box-shadow: var(--card-shadow);
      padding: 30px;
      height: 100%;
      transition: var(--transition);
      position: relative;
    }
    .card-base:hover {
      transform: translateY(-4px);
      border-color: rgba(29, 78, 216, 0.2);
    }

    /* 板块 1: Hero 首屏 */
    .hero-section {
      padding: 70px 0 90px;
      background: radial-gradient(circle at 10% 20%, rgba(29, 78, 216, 0.04) 0%, transparent 60%),
                  radial-gradient(circle at 90% 80%, rgba(234, 88, 12, 0.03) 0%, transparent 60%),
                  var(--bg-white);
      border-bottom: 1px solid var(--border-light);
    }
    .hero-h1 {
      font-size: 38px;
      font-weight: 900;
      line-height: 1.3;
      color: var(--accent);
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }
    .hero-h1 span {
      color: var(--primary);
    }
    .hero-intro {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 30px;
      text-align: justify;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      padding-top: 20px;
      border-top: 1px dashed var(--border-light);
    }
    .badge-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
    }
    .badge-item i {
      color: var(--primary);
      font-size: 15px;
    }
    .hero-visual-card {
      position: relative;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: 0 20px 40px -10px rgba(30, 64, 175, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.8);
      background: #000;
    }
    .hero-visual-card img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      opacity: 0.9;
    }
    .visual-overlay-tag {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(15, 23, 42, 0.85);
      color: #fff;
      padding: 6px 12px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 600;
      backdrop-filter: blur(4px);
    }
    .visual-footer-bar {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      padding: 16px 20px;
      background: linear-gradient(to top, rgba(15, 23, 42, 0.95), transparent);
      color: #fff;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .visual-specs {
      font-size: 12px;
      color: #CBD5E1;
    }
    .score-badge {
      background: var(--highlight);
      color: #fff;
      padding: 4px 8px;
      border-radius: 4px;
      font-weight: 700;
      font-size: 13px;
    }

    /* 板块 2: 核心卖点三连 */
    .prop-card {
      position: relative;
      overflow: hidden;
    }
    .prop-num {
      position: absolute;
      top: -10px;
      right: 15px;
      font-size: 72px;
      font-weight: 900;
      font-family: Georgia, serif;
      color: rgba(30, 64, 175, 0.05);
      user-select: none;
    }
    .prop-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: rgba(29, 78, 216, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 20px;
    }
    .prop-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 12px;
    }
    .prop-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 3: 场景演示 */
    .scenario-item {
      display: flex;
      gap: 16px;
      padding: 20px;
      border-radius: var(--radius);
      border: 1px solid transparent;
      transition: var(--transition);
      cursor: pointer;
      margin-bottom: 12px;
      background: #fff;
    }
    .scenario-item.active,
    .scenario-item:hover {
      border-color: var(--primary);
      background: rgba(29, 78, 216, 0.03);
    }
    .scenario-icon {
      font-size: 22px;
      color: var(--primary);
      margin-top: 2px;
    }
    .scenario-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 4px;
    }
    .scenario-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .scenario-monitor {
      background: #0F172A;
      border-radius: var(--radius);
      padding: 24px;
      color: #fff;
      height: 100%;
    }
    .monitor-header {
      display: flex;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 12px;
      margin-bottom: 16px;
      font-size: 12px;
      color: #94A3B8;
    }
    .monitor-status {
      display: flex;
      align-items: center;
      gap: 6px;
      color: #10B981;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10B981;
    }
    .stream-block {
      background: rgba(255, 255, 255, 0.05);
      border-radius: 8px;
      padding: 16px;
      margin-bottom: 12px;
    }
    .stream-meta {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      margin-bottom: 8px;
    }
    .progress-bar-wrap {
      height: 6px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 3px;
      overflow: hidden;
    }
    .progress-bar-inner {
      height: 100%;
      background: var(--primary);
      border-radius: 3px;
    }

    /* 板块 4: 社会认同评测 */
    .review-quote {
      font-style: italic;
      color: var(--text-main);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border-light);
      padding-top: 14px;
    }
    .reviewer-name {
      font-size: 13px;
      font-weight: 700;
      color: var(--accent);
    }
    .reviewer-source {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 5: 竞品参数对比 */
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      background: #fff;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-light);
    }
    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      text-align: left;
      font-size: 14px;
      border-bottom: 1px solid var(--border-light);
    }
    .compare-table th {
      background: var(--bg-light);
      font-weight: 700;
      color: var(--accent);
    }
    .compare-table .highlight-col {
      background: rgba(29, 78, 216, 0.04);
      font-weight: 600;
      color: var(--primary);
    }
    .compare-table th.highlight-col {
      background: rgba(29, 78, 216, 0.1);
      color: var(--primary-dark);
    }

    /* 板块 6: 资讯与技术专栏 */
    .insight-hero-img {
      border-radius: var(--radius);
      overflow: hidden;
      position: relative;
      height: 320px;
    }
    .insight-hero-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .insight-hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent 50%);
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 24px;
      color: #fff;
    }
    .news-item {
      padding: 16px;
      border-bottom: 1px solid var(--border-light);
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .news-item:last-child { border-bottom: none; }
    .news-date {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      background: rgba(29, 78, 216, 0.08);
      padding: 4px 8px;
      border-radius: 4px;
      white-space: nowrap;
    }
    .news-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 4px;
    }
    .news-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }

    /* 板块 7: GEO 节点覆盖 */
    .node-stat-box {
      background: #fff;
      border: 1px solid var(--border-light);
      border-radius: 8px;
      padding: 14px;
      margin-bottom: 12px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .node-region {
      font-size: 14px;
      font-weight: 700;
      color: var(--accent);
    }
    .node-latency {
      font-size: 13px;
      font-weight: 600;
      color: #10B981;
    }
    .node-load {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 8: 分类页唯一引流位入口 */
    .gateway-card {
      background: linear-gradient(135deg, #1E40AF 0%, #0F172A 100%);
      color: #fff;
      border-radius: var(--radius);
      padding: 48px;
      position: relative;
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(15, 23, 42, 0.2);
    }
    .gateway-card::before {
      content: "";
      position: absolute;
      right: -60px;
      top: -60px;
      width: 260px;
      height: 260px;
      background: radial-gradient(circle, rgba(234, 88, 12, 0.3), transparent 70%);
      border-radius: 50%;
    }
    .gateway-h3 {
      font-size: 26px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }
    .gateway-p {
      font-size: 15px;
      color: #CBD5E1;
      max-width: 600px;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    /* 板块 9: 常见异议折叠 FAQ */
    .faq-item {
      background: #fff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      margin-bottom: 14px;
      overflow: hidden;
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 15px;
      font-weight: 700;
      color: var(--accent);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question i {
      color: var(--primary);
      transition: var(--transition);
    }
    .faq-answer {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px solid rgba(0,0,0,0.03);
      display: block;
    }

    /* 板块 10: 保障与合规条 */
    .trust-banner {
      background: #FFFFFF;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
      padding: 36px 0;
    }
    .trust-col {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .trust-icon {
      font-size: 28px;
      color: var(--primary);
    }
    .trust-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 2px;
    }
    .trust-desc {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 11: 质检与巡检看板 */
    .dashboard-panel {
      background: #fff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--card-shadow);
    }
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      text-align: center;
    }
    .metric-box {
      padding: 16px;
      background: var(--bg-light);
      border-radius: 8px;
    }
    .metric-val {
      font-size: 24px;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 4px;
    }
    .metric-label {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 12: 底部冲刺转化唤醒区 */
    .final-cta-section {
      padding: 90px 0;
      background: radial-gradient(circle at center, rgba(29, 78, 216, 0.05), transparent 70%), #FFFFFF;
      text-align: center;
      border-top: 1px solid var(--border-light);
    }
    .final-cta-card {
      max-width: 760px;
      margin: 0 auto;
    }
    .final-h2 {
      font-size: 32px;
      font-weight: 900;
      color: var(--accent);
      margin-bottom: 16px;
    }

    /* 底部固定转化条 */
    .bottom-sticky-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(15, 23, 42, 0.96);
      backdrop-filter: blur(8px);
      color: #fff;
      padding: 12px 0;
      z-index: 999;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      box-shadow: 0 -4px 16px rgba(0,0,0,0.15);
    }
    .sticky-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .sticky-info {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 13px;
    }
    .sticky-status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #10B981;
      font-weight: 600;
    }

    /* 页脚统一规范 */
    .site-footer {
      background: #0F172A;
      color: #94A3B8;
      padding: 60px 0 100px; /* 留足底部贴条高度 */
      border-top: 1px solid #1E293B;
      font-size: 13px;
    }
    .footer-brand-title {
      color: #FFFFFF;
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-desc {
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .footer-heading {
      color: #FFFFFF;
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      margin-top: 48px;
      padding-top: 24px;
      border-top: 1px solid #1E293B;
      text-align: center;
      font-size: 12px;
      color: #64748B;
    }

    /* 移动端响应式适配 */
    @media (max-width: 1023px) {
      .header-actions .search-box { display: none; }
      .nav-menu { gap: 16px; }
      .metric-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 639px) {
      .top-header { height: auto; padding: 12px 0; }
      .header-inner { flex-direction: column; gap: 12px; height: auto; }
      .nav-menu { flex-wrap: wrap; justify-content: center; gap: 14px; }
      .hero-h1 { font-size: 26px; }
      .section-h2 { font-size: 22px; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .hero-actions .btn-accent, .hero-actions .btn-secondary { text-align: center; justify-content: center; }
      .sticky-inner { flex-direction: column; gap: 8px; text-align: center; }
      .metric-grid { grid-template-columns: 1fr; }
      .trust-col { margin-bottom: 16px; }
    }

/* roulang page: category1 */
:root {
      --primary: #1D4ED8;
      --primary-dark: #1E40AF;
      --accent: #0F172A;
      --highlight: #EA580C;
      --bg-light: #F5F8FA;
      --bg-white: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-light: rgba(30, 64, 175, 0.08);
      --card-shadow: 0 10px 30px -5px rgba(30, 64, 175, 0.06), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.8;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

    a { color: inherit; text-decoration: none; transition: var(--transition); }
    img { max-width: 100%; height: auto; display: block; }

    /* 顶部导航 */
    .top-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-light);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      font-size: 24px;
      color: var(--primary);
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
      margin: 0;
    }
    .nav-menu li a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }
    .nav-menu li a.active,
    .nav-menu li a:hover {
      color: var(--primary);
    }
    .nav-menu li a.active::after,
    .nav-menu li a:hover::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .search-box {
      position: relative;
      width: 190px;
    }
    .search-box input {
      width: 100%;
      height: 36px;
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      border-radius: 20px;
      padding: 0 14px 0 34px;
      font-size: 13px;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
      margin-bottom: 0;
    }
    .search-box input:focus {
      border-color: var(--primary);
      background: #fff;
    }
    .search-box i {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 13px;
      color: var(--text-muted);
    }
    .btn-secondary {
      padding: 8px 16px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      border: 1px solid var(--border-light);
      border-radius: 20px;
      background: #fff;
    }
    .btn-secondary:hover {
      color: var(--primary);
      border-color: var(--primary);
    }
    .btn-primary {
      padding: 9px 20px;
      font-size: 13px;
      font-weight: 600;
      color: #fff;
      background: var(--primary);
      border-radius: 20px;
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 4px 12px rgba(29, 78, 216, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      color: #fff;
    }

    /* 板块通用布局与间距 */
    section {
      padding: 70px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-white);
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }
    .section-title-wrap {
      margin-bottom: 40px;
    }
    .badge-sub {
      display: inline-block;
      padding: 4px 12px;
      background: rgba(29, 78, 216, 0.08);
      color: var(--primary);
      border-radius: 4px;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.5px;
      margin-bottom: 10px;
    }
    .section-h2 {
      font-size: 28px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.35;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }
    .card-base {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      box-shadow: var(--card-shadow);
      padding: 24px;
      height: 100%;
      transition: var(--transition);
      position: relative;
    }
    .card-base:hover {
      transform: translateY(-4px);
      border-color: rgba(29, 78, 216, 0.25);
    }

    /* 板块 1: 导视标头区 (Category Header) */
    .cat-header-section {
      padding: 55px 0 45px;
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-light);
    }
    .cat-h1 {
      font-size: 34px;
      font-weight: 900;
      color: var(--accent);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .cat-h1 span {
      color: var(--primary);
    }
    .cat-intro {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 0;
    }
    .cat-meta-panel {
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      padding: 20px 24px;
      display: flex;
      align-items: center;
      justify-content: space-around;
      gap: 20px;
    }
    .meta-stat-item {
      text-align: center;
    }
    .meta-stat-num {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }
    .meta-stat-label {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 板块 2: 交互式多维过滤条 */
    .filter-bar-section {
      padding: 24px 0;
      background: var(--bg-light);
      border-bottom: 1px solid var(--border-light);
    }
    .filter-group {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 12px;
    }
    .filter-group:last-child {
      margin-bottom: 0;
    }
    .filter-label {
      font-size: 13px;
      font-weight: 700;
      color: var(--accent);
      min-width: 72px;
    }
    .filter-tag {
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 13px;
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      color: var(--text-main);
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-tag:hover, .filter-tag.active {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }

    /* 板块 3: 精选杂志卡片列表 (主体) */
    .mag-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .mag-card:hover {
      transform: translateY(-5px);
      border-color: rgba(29, 78, 216, 0.3);
      box-shadow: 0 16px 36px -6px rgba(30, 64, 175, 0.12);
    }
    .mag-card-img-wrap {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 10;
      background: #E2E8F0;
    }
    .mag-card-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .mag-card:hover .mag-card-img-wrap img {
      transform: scale(1.04);
    }
    .badge-float {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(15, 23, 42, 0.85);
      color: #FFFFFF;
      padding: 3px 10px;
      border-radius: 4px;
      font-size: 11px;
      font-weight: 600;
      backdrop-filter: blur(4px);
    }
    .badge-rating {
      position: absolute;
      top: 12px;
      right: 12px;
      background: var(--highlight);
      color: #FFFFFF;
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 11px;
      font-weight: 700;
    }
    .mag-card-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .mag-card-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 8px;
      line-height: 1.45;
    }
    .mag-card-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .mag-card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border-light);
      padding-top: 12px;
      font-size: 12px;
      color: var(--text-muted);
    }
    .mag-card-meta span i {
      margin-right: 4px;
      color: var(--primary);
    }
    .load-more-wrap {
      margin-top: 48px;
      text-align: center;
    }
    .btn-load-more {
      padding: 12px 32px;
      background: #FFFFFF;
      border: 1px solid var(--primary);
      color: var(--primary);
      border-radius: 24px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
    }
    .btn-load-more:hover {
      background: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(29, 78, 216, 0.25);
    }

    /* 板块 4: 本周特邀主编精选评述 (Curator's Pick) */
    .curator-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      box-shadow: var(--card-shadow);
      padding: 36px;
    }
    .curator-badge-top {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 700;
      color: var(--highlight);
      background: rgba(234, 88, 12, 0.08);
      padding: 4px 12px;
      border-radius: 4px;
      margin-bottom: 16px;
    }
    .curator-quote {
      font-size: 16px;
      color: var(--accent);
      line-height: 1.85;
      font-weight: 500;
      position: relative;
      margin-bottom: 24px;
      padding-left: 18px;
      border-left: 3px solid var(--primary);
    }
    .curator-meta-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      padding-top: 20px;
      border-top: 1px dashed var(--border-light);
    }
    .curator-meta-item {
      font-size: 13px;
      color: var(--text-muted);
    }
    .curator-meta-item strong {
      color: var(--accent);
      margin-left: 4px;
    }

    /* 板块 5: 区域访问效率与热门排行趋势榜 (Top 5) */
    .top-rank-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .top-rank-item {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 16px 20px;
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      margin-bottom: 12px;
      transition: var(--transition);
    }
    .top-rank-item:hover {
      border-color: var(--primary);
      transform: translateX(4px);
    }
    .rank-index {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--bg-light);
      color: var(--text-muted);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 15px;
      flex-shrink: 0;
    }
    .top-rank-item:nth-child(1) .rank-index {
      background: #EA580C;
      color: #FFFFFF;
    }
    .top-rank-item:nth-child(2) .rank-index {
      background: #1D4ED8;
      color: #FFFFFF;
    }
    .top-rank-item:nth-child(3) .rank-index {
      background: #0F172A;
      color: #FFFFFF;
    }
    .rank-info {
      flex-grow: 1;
    }
    .rank-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 2px;
    }
    .rank-specs {
      font-size: 12px;
      color: var(--text-muted);
    }
    .rank-latency {
      font-size: 13px;
      font-weight: 700;
      color: #10B981;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块 6: 分类专属疑难与操作解答 (Category FAQ) */
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      padding: 24px;
      margin-bottom: 16px;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
    }
    .faq-item:hover {
      border-color: rgba(29, 78, 216, 0.2);
    }
    .faq-q {
      font-size: 16px;
      font-weight: 700;
      color: var(--accent);
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
    }
    .faq-q i {
      color: var(--primary);
      font-size: 18px;
    }
    .faq-a {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 0;
      padding-left: 28px;
    }

    /* 板块 7: 边缘关联索引与全景导读条 */
    .archive-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .tag-cloud-item {
      padding: 6px 14px;
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: 6px;
      font-size: 13px;
      color: var(--text-main);
      transition: var(--transition);
    }
    .tag-cloud-item:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(29, 78, 216, 0.04);
    }
    .archive-box {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius);
      padding: 24px;
      height: 100%;
    }
    .archive-box h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 页脚 */
    .site-footer {
      background: #0F172A;
      color: #94A3B8;
      padding: 64px 0 28px;
      font-size: 14px;
    }
    .footer-brand-title {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }
    .footer-desc {
      font-size: 13px;
      line-height: 1.75;
      color: #94A3B8;
      margin-bottom: 20px;
    }
    .footer-heading {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links li a {
      color: #94A3B8;
      transition: var(--transition);
    }
    .footer-links li a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: 48px;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #64748B;
    }

    /* 移动端响应式断点适配 */
    @media (max-width: 1023px) {
      .header-actions .search-box { display: none; }
      .nav-menu { gap: 16px; }
      .cat-h1 { font-size: 28px; }
      .cat-meta-panel { margin-top: 24px; }
    }
    @media (max-width: 639px) {
      .header-inner { height: 60px; }
      .brand-logo { font-size: 17px; }
      .nav-menu { display: none; }
      .btn-secondary { display: none; }
      section { padding: 48px 0; }
      .cat-header-section { padding: 40px 0 30px; }
      .cat-h1 { font-size: 24px; }
      .section-h2 { font-size: 22px; }
      .filter-group { gap: 8px; }
      .filter-tag { font-size: 12px; padding: 3px 10px; }
      .curator-card { padding: 20px; }
      .faq-a { padding-left: 0; margin-top: 8px; }
    }