/* roulang page: index */
:root {
      --primary: #0a4ebd;
      --primary-light: #2563eb;
      --primary-dark: #072e73;
      --accent: #00d2ff;
      --accent-glow: rgba(0, 210, 255, 0.25);
      --bg-page: #f8fafc;
      --bg-surface: #ffffff;
      --bg-subtle: #f1f5f9;
      --bg-dark: #0b1329;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --border-color: #e2e8f0;
      --border-highlight: #bfdbfe;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 20px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 16px 36px rgba(10, 78, 189, 0.12);
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .brand-logo .chip-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-sm);
      display: grid;
      place-items: center;
      color: #fff;
      font-size: 16px;
      box-shadow: 0 4px 10px var(--accent-glow);
    }

    .site-nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-muted);
      position: relative;
      padding: 8px 0;
    }

    .nav-link.active, .nav-link:hover {
      color: var(--primary);
    }

    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .header-cta {
      padding: 9px 20px;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-md);
      box-shadow: 0 4px 14px rgba(10, 78, 189, 0.25);
    }

    .header-cta:hover {
      box-shadow: 0 6px 18px rgba(10, 78, 189, 0.35);
      transform: translateY(-1px);
    }

    /* 样式徽章与通用标题 */
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: rgba(10, 78, 189, 0.08);
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      border-radius: 99px;
      margin-bottom: 16px;
    }

    .section-header {
      margin-bottom: 44px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.7;
    }

    .badge-data {
      display: inline-block;
      padding: 3px 10px;
      font-size: 12px;
      font-weight: 600;
      border-radius: 6px;
      background: #eff6ff;
      color: var(--primary);
      border: 1px solid #dbeafe;
    }

    .badge-highlight {
      background: #fef3c7;
      color: #b45309;
      border-color: #fde68a;
    }

    /* 首屏 Hero：对比选型 + 高亮前置推荐档 */
    section.hero-selection {
      position: relative;
      padding: 70px 0 80px;
      background: url('/assets/images/f7b3a96760f476e0.webp') center/cover no-repeat;
      overflow: hidden;
    }

    .hero-selection::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(248, 250, 252, 0.96) 20%, rgba(241, 245, 249, 0.88) 100%);
    }

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

    .hero-intro {
      max-width: 820px;
      margin-bottom: 40px;
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.2;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(135deg, var(--primary), #0284c7);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 选型卡片对比网格 */
    .selection-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      align-items: stretch;
    }

    .select-card {
      background: var(--bg-surface);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      transition: var(--transition);
    }

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

    .select-card.highlight {
      border: 2px solid var(--primary-light);
      box-shadow: 0 12px 30px rgba(10, 78, 189, 0.16);
      transform: scale(1.02);
      z-index: 2;
      background: linear-gradient(180deg, #ffffff 0%, #f0f7ff 100%);
    }

    .select-card.highlight:hover {
      transform: scale(1.02) translateY(-4px);
    }

    .select-card-badge {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(135deg, #0a4ebd, #00d2ff);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 99px;
      box-shadow: 0 4px 10px rgba(10, 78, 189, 0.3);
      white-space: nowrap;
    }

    .card-top h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .card-sub {
      font-size: 13px;
      color: var(--text-light);
      margin-bottom: 20px;
    }

    .card-param-list {
      list-style: none;
      margin-bottom: 28px;
    }

    .card-param-list li {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .card-param-list li::before {
      content: '✓';
      display: inline-grid;
      place-items: center;
      width: 18px;
      height: 18px;
      background: rgba(10, 78, 189, 0.1);
      color: var(--primary);
      border-radius: 50%;
      font-size: 11px;
      font-weight: bold;
    }

    .btn-action {
      display: block;
      width: 100%;
      text-align: center;
      padding: 12px 0;
      border-radius: var(--radius-md);
      font-size: 14px;
      font-weight: 700;
      transition: var(--transition);
      cursor: pointer;
    }

    .btn-action.btn-outline {
      border: 1px solid var(--border-color);
      color: var(--text-main);
      background: #fff;
    }

    .btn-action.btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(10, 78, 189, 0.04);
    }

    .btn-action.btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      color: #fff;
      border: none;
      box-shadow: 0 4px 12px rgba(10, 78, 189, 0.25);
    }

    .btn-action.btn-primary:hover {
      box-shadow: 0 6px 16px rgba(10, 78, 189, 0.4);
      filter: brightness(1.05);
    }

    /* 板块 2：搜索与入口 */
    section.search-bar-section {
      padding: 40px 0;
      background: var(--bg-surface);
      border-bottom: 1px solid var(--border-color);
    }

    .search-box-wrap {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      gap: 12px;
      background: var(--bg-subtle);
      padding: 8px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
    }

    .search-box-wrap input {
      flex: 1;
      border: none;
      background: transparent;
      padding: 10px 18px;
      font-size: 15px;
      color: var(--text-main);
      outline: none;
    }

    .search-box-wrap button {
      padding: 12px 28px;
      background: var(--primary);
      color: #fff;
      border: none;
      border-radius: var(--radius-md);
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }

    .search-box-wrap button:hover {
      background: var(--primary-light);
    }

    .search-tags-row {
      max-width: 860px;
      margin: 14px auto 0;
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      align-items: center;
    }

    .search-tags-row span {
      font-size: 13px;
      color: var(--text-light);
    }

    .quick-tag {
      font-size: 13px;
      color: var(--primary);
      background: rgba(10, 78, 189, 0.05);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(10, 78, 189, 0.1);
    }

    .quick-tag:hover {
      background: rgba(10, 78, 189, 0.1);
    }

    /* 板块 3：直播预告专区 */
    section.live-broadcast {
      padding: 60px 0;
      background: linear-gradient(135deg, #091a3c, #132754);
      color: #fff;
    }

    .live-card {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-xl);
      padding: 36px;
      align-items: center;
      backdrop-filter: blur(10px);
    }

    .live-cover {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    }

    .live-cover img {
      width: 100%;
      height: 280px;
      object-fit: cover;
    }

    .live-status-pill {
      position: absolute;
      top: 14px;
      left: 14px;
      background: #ef4444;
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 99px;
      display: flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 2px 8px rgba(239, 68, 68, 0.5);
    }

    .live-status-pill::before {
      content: '';
      width: 6px;
      height: 6px;
      background: #fff;
      border-radius: 50%;
      animation: pulse 1.5s infinite;
    }

    @keyframes pulse {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(1.3); }
      100% { opacity: 1; transform: scale(1); }
    }

    .live-info h3 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .live-countdown {
      display: flex;
      gap: 12px;
      margin: 18px 0;
    }

    .timer-unit {
      background: rgba(255, 255, 255, 0.1);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      text-align: center;
      min-width: 60px;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .timer-unit .num {
      font-size: 20px;
      font-weight: 800;
      color: var(--accent);
      display: block;
    }

    .timer-unit .label {
      font-size: 11px;
      color: var(--text-light);
    }

    .live-highlights {
      list-style: none;
      margin-bottom: 24px;
    }

    .live-highlights li {
      font-size: 14px;
      color: #cbd5e1;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .live-highlights li::before {
      content: '▶';
      font-size: 10px;
      color: var(--accent);
    }

    .btn-live-sub {
      display: inline-block;
      background: linear-gradient(135deg, var(--accent), #0284c7);
      color: #0b1329;
      font-weight: 700;
      font-size: 14px;
      padding: 12px 28px;
      border-radius: var(--radius-md);
      box-shadow: 0 4px 14px var(--accent-glow);
    }

    .btn-live-sub:hover {
      filter: brightness(1.1);
    }

    /* 板块 4：分类矩阵 */
    section.chip-categories {
      padding: 80px 0;
      background: var(--bg-page);
    }

    .category-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .category-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px 22px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .category-card:hover {
      border-color: var(--border-highlight);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .cat-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, rgba(10, 78, 189, 0.1), rgba(0, 210, 255, 0.1));
      display: grid;
      place-items: center;
      color: var(--primary);
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .category-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .category-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .cat-chips-list {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
    }

    /* 板块 5：能力矩阵与技术架构 */
    section.capability-matrix {
      padding: 80px 0;
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .cap-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .cap-item {
      padding: 26px;
      border-radius: var(--radius-md);
      background: var(--bg-subtle);
      border: 1px solid var(--border-color);
    }

    .cap-item h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .cap-item h4 span.bullet {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      display: inline-block;
    }

    .cap-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 6：精选清单（产品展柜） */
    section.featured-list {
      padding: 80px 0;
      background: var(--bg-page);
    }

    .featured-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .chip-product-card {
      background: var(--bg-surface);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

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

    .chip-img-holder {
      height: 190px;
      overflow: hidden;
      position: relative;
    }

    .chip-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .chip-product-card:hover .chip-img-holder img {
      transform: scale(1.05);
    }

    .chip-product-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .chip-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 10px;
    }

    .chip-product-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .chip-product-body p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
    }

    .chip-specs-table {
      font-size: 12px;
      color: var(--text-muted);
      border-top: 1px dashed var(--border-color);
      padding-top: 12px;
      margin-top: 12px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
    }

    /* 板块 7：最新发布与工程更新 */
    section.latest-releases {
      padding: 80px 0;
      background: var(--bg-surface);
      border-top: 1px solid var(--border-color);
    }

    .release-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .timeline-card {
      background: var(--bg-subtle);
      border-radius: var(--radius-md);
      padding: 22px;
      border: 1px solid var(--border-color);
      position: relative;
    }

    .timeline-card .version-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .timeline-card h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .timeline-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块 8：排行列表与热度趋势 */
    section.ranking-section {
      padding: 80px 0;
      background: var(--bg-page);
    }

    .ranking-table-card {
      background: var(--bg-surface);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .ranking-row {
      display: grid;
      grid-template-columns: 80px 2fr 1.5fr 1fr 1.2fr;
      padding: 18px 24px;
      align-items: center;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }

    .ranking-row.header {
      background: var(--bg-subtle);
      font-weight: 700;
      color: var(--text-muted);
    }

    .ranking-row:last-child {
      border-bottom: none;
    }

    .rank-num {
      font-size: 16px;
      font-weight: 800;
      color: var(--text-light);
      display: inline-grid;
      place-items: center;
      width: 28px;
      height: 28px;
      border-radius: 6px;
      background: #f1f5f9;
    }

    .rank-top1 { background: #fee2e2; color: #dc2626; }
    .rank-top2 { background: #ffedd5; color: #ea580c; }
    .rank-top3 { background: #fef9c3; color: #ca8a04; }

    /* 板块 9：价格与方案对比 */
    section.pricing-compare {
      padding: 80px 0;
      background: var(--bg-surface);
      border-top: 1px solid var(--border-color);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      background: var(--bg-surface);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .compare-table th, .compare-table td {
      padding: 18px 24px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }

    .compare-table th {
      background: var(--bg-subtle);
      font-weight: 700;
    }

    .compare-table th.col-highlight, .compare-table td.col-highlight {
      background: rgba(10, 78, 189, 0.03);
      color: var(--primary);
      font-weight: 700;
      border-left: 1px solid var(--border-highlight);
      border-right: 1px solid var(--border-highlight);
    }

    /* 板块 10：资源中心与SDK下载 */
    section.resource-center {
      padding: 80px 0;
      background: var(--bg-page);
    }

    .resource-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .resource-card {
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .resource-card h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .resource-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 16px;
    }

    .resource-link {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .resource-link:hover {
      text-decoration: underline;
    }

    /* 板块 11：行业资讯与技术白皮书 */
    section.industry-news {
      padding: 80px 0;
      background: var(--bg-surface);
      border-top: 1px solid var(--border-color);
    }

    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .news-card {
      background: var(--bg-subtle);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .news-card-img {
      height: 180px;
      overflow: hidden;
    }

    .news-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .news-card-body {
      padding: 22px;
    }

    .news-card-body h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .news-card-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 12：核心数据指标墙 */
    section.metric-stats {
      padding: 60px 0;
      background: linear-gradient(135deg, var(--bg-dark), #101c38);
      color: #fff;
    }

    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .metric-item .metric-val {
      font-size: 40px;
      font-weight: 900;
      color: var(--accent);
      margin-bottom: 4px;
      letter-spacing: -1px;
    }

    .metric-item .metric-title {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .metric-item .metric-desc {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 板块 13：工程收藏与开通接入 CTA（单点收口） */
    section.final-cta-section {
      padding: 90px 0;
      background: url('/assets/images/ef29e21c55ed7753.webp') center/cover no-repeat;
      position: relative;
    }

    .final-cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(10, 78, 189, 0.92);
    }

    .cta-card-inner {
      position: relative;
      z-index: 1;
      max-width: 760px;
      margin: 0 auto;
      text-align: center;
      color: #fff;
    }

    .cta-card-inner h2 {
      font-size: 34px;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .cta-card-inner p {
      font-size: 16px;
      line-height: 1.8;
      margin-bottom: 32px;
      opacity: 0.95;
    }

    .cta-btn-group {
      display: flex;
      justify-content: center;
      gap: 16px;
    }

    .btn-cta-main {
      padding: 14px 36px;
      background: #fff;
      color: var(--primary);
      font-size: 15px;
      font-weight: 800;
      border-radius: var(--radius-md);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    }

    .btn-cta-main:hover {
      background: #f8fafc;
      transform: translateY(-2px);
    }

    .btn-cta-sec {
      padding: 14px 36px;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.4);
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      border-radius: var(--radius-md);
    }

    .btn-cta-sec:hover {
      background: rgba(255, 255, 255, 0.1);
    }

    /* 页脚 */
    footer.site-footer {
      background: #0b1120;
      color: #94a3b8;
      padding: 70px 0 30px;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-brand h3 {
      color: #fff;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-brand p {
      line-height: 1.7;
      font-size: 13px;
      color: #64748b;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a:hover {
      color: #fff;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #475569;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .selection-grid, .featured-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .category-grid, .resource-grid, .release-timeline, .metric-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        height: 60px;
      }
      .site-nav {
        display: none;
      }
      .hero-title {
        font-size: 28px;
      }
      .selection-grid, .featured-grid, .news-grid, .category-grid, .resource-grid, .release-timeline, .metric-grid, .cap-grid {
        grid-template-columns: 1fr;
      }
      .live-card {
        grid-template-columns: 1fr;
      }
      .ranking-row {
        grid-template-columns: 50px 1.5fr 1fr;
      }
      .ranking-row div:nth-child(4), .ranking-row div:nth-child(5) {
        display: none;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }