/* roulang page: index */
:root {
      --primary: #0A3622;
      --primary-dark: #062316;
      --primary-light: #0F4C3A;
      --accent: #00E676;
      --accent-yellow: #CCFF00;
      --accent-hover: #00C853;
      --dark: #0D1117;
      --dark-card: #161B22;
      --gray-border: rgba(255, 255, 255, 0.12);
      --gray-bg: #F4F6F8;
      --text-main: #1F2937;
      --text-muted: #6B7280;
      --text-light: #E6EDF3;
      --text-light-muted: #8B949E;
      --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      --max-width: 1240px;
      --radius-sm: 4px;
      --radius-md: 8px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: #FFFFFF;
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    .container {
      width: 100%;
      max-width: var(--max-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部通告与导航 */
    .header-fixed {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(10, 54, 34, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .top-bar {
      background-color: var(--primary-dark);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 12px;
      color: var(--text-light-muted);
      padding: 6px 0;
    }

    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .top-bar-tags {
      display: flex;
      gap: 16px;
    }

    .top-indicator {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--accent);
    }

    .top-indicator::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }

    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 0;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #FFFFFF;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: -0.5px;
    }

    .brand-badge {
      font-size: 11px;
      background: rgba(0, 230, 118, 0.15);
      color: var(--accent);
      border: 1px solid rgba(0, 230, 118, 0.3);
      padding: 2px 6px;
      border-radius: var(--radius-sm);
      text-transform: uppercase;
      font-weight: 600;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
    }

    .nav-item a {
      color: var(--text-light);
      font-size: 14px;
      font-weight: 500;
      padding: 6px 0;
      position: relative;
    }

    .nav-item a:hover {
      color: var(--accent);
    }

    .nav-item a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--accent);
      transition: var(--transition);
    }

    .nav-item a:hover::after {
      width: 100%;
    }

    .nav-action {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
      min-height: 44px;
    }

    .btn-accent {
      background-color: var(--accent);
      color: var(--primary-dark);
      box-shadow: 0 4px 14px rgba(0, 230, 118, 0.3);
    }

    .btn-accent:hover {
      background-color: var(--accent-hover);
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(0, 230, 118, 0.4);
    }

    .btn-outline-light {
      background: transparent;
      color: #FFFFFF;
      border-color: rgba(255, 255, 255, 0.3);
    }

    .btn-outline-light:hover {
      border-color: #FFFFFF;
      background: rgba(255, 255, 255, 0.08);
    }

    .btn-outline-primary {
      background: transparent;
      color: var(--primary);
      border-color: var(--primary);
    }

    .btn-outline-primary:hover {
      background: var(--primary);
      color: #FFFFFF;
    }

    .btn-block {
      width: 100%;
    }

    /* Section 通用规范 */
    .section-wrap {
      padding: 90px 0;
      position: relative;
    }

    .section-wrap-sm {
      padding: 50px 0;
    }

    .section-dark {
      background-color: var(--dark);
      color: var(--text-light);
    }

    .section-light-gray {
      background-color: var(--gray-bg);
      border-top: 1px solid #E5E7EB;
      border-bottom: 1px solid #E5E7EB;
    }

    .section-primary-tint {
      background-color: #F0FDF4;
      border-top: 1px solid #DCFCE7;
      border-bottom: 1px solid #DCFCE7;
    }

    .section-header {
      margin-bottom: 50px;
    }

    .section-header.text-center {
      text-align: center;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-light);
      background-color: rgba(15, 76, 58, 0.1);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-dark .section-tag {
      color: var(--accent);
      background-color: rgba(0, 230, 118, 0.12);
      border: 1px solid rgba(0, 230, 118, 0.25);
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .section-dark .section-title {
      color: #FFFFFF;
    }

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

    .section-dark .section-desc {
      color: var(--text-light-muted);
    }

    /* 1. Hero 蓝图：拼团转化/成团人数提示 + 仪表盘组合 */
    .hero-section {
      background-color: var(--primary);
      background-image: linear-gradient(135deg, rgba(6, 35, 22, 0.94), rgba(15, 76, 58, 0.9)), url('/assets/images/backpic/back-1.jpg');
      background-size: cover;
      background-position: center;
      color: #FFFFFF;
      padding: 100px 0 90px;
      position: relative;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-lead {
      font-size: 16px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 28px;
    }

    /* 拼团与组网协同转化卡片 */
    .group-access-card {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(0, 230, 118, 0.3);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      backdrop-filter: blur(8px);
    }

    .group-avatar-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .avatar-stack {
      display: flex;
    }

    .avatar-circle {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      border: 2px solid var(--primary);
      background: #1E293B;
      color: var(--accent);
      font-size: 12px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-left: -8px;
    }

    .avatar-circle:first-child {
      margin-left: 0;
    }

    .group-text-info strong {
      display: block;
      font-size: 14px;
      color: #FFFFFF;
    }

    .group-text-info span {
      font-size: 12px;
      color: var(--accent-yellow);
    }

    .hero-cta-btns {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* 首屏数据仪表盘展示面板 */
    .hero-dashboard-preview {
      background: var(--dark-card);
      border: 1px solid var(--gray-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }

    .dashboard-preview-header {
      background: #0D1117;
      padding: 12px 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--gray-border);
    }

    .window-dots {
      display: flex;
      gap: 6px;
    }

    .window-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #30363D;
    }

    .window-dot.active {
      background: var(--accent);
    }

    .dashboard-tag {
      font-size: 11px;
      color: var(--text-light-muted);
      font-family: monospace;
    }

    .dashboard-body {
      padding: 20px;
    }

    .kpi-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-bottom: 16px;
    }

    .kpi-block {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      padding: 12px;
      border-radius: var(--radius-sm);
      text-align: center;
    }

    .kpi-title {
      font-size: 11px;
      color: var(--text-light-muted);
      margin-bottom: 4px;
    }

    .kpi-val {
      font-size: 18px;
      font-weight: 700;
      color: var(--accent);
      font-family: monospace;
    }

    .dashboard-stream-box {
      background: rgba(0, 0, 0, 0.3);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: var(--radius-sm);
      padding: 12px;
      font-family: monospace;
      font-size: 12px;
    }

    .stream-line {
      display: flex;
      justify-content: space-between;
      padding: 6px 0;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
    }

    .stream-line:last-child {
      border-bottom: none;
    }

    .stream-event {
      color: #FFFFFF;
    }

    .stream-xg {
      color: var(--accent-yellow);
    }

    /* 2. 平台品牌与链路架构 (#about) */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .overview-image-frame {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
      border: 1px solid #E5E7EB;
    }

    .overview-image-frame img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    .spec-badges {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .spec-badge-card {
      background: #FFFFFF;
      padding: 14px 18px;
      border: 1px solid #E5E7EB;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--primary-light);
    }

    .spec-badge-num {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      display: block;
    }

    .spec-badge-txt {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 3. 六大核心技术优势 (#strengths) */
    .grid-3-col {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: #FFFFFF;
      border: 1px solid #E5E7EB;
      border-radius: var(--radius-md);
      padding: 30px;
      transition: var(--transition);
      position: relative;
    }

    .feature-card:hover {
      border-color: var(--primary-light);
      transform: translateY(-4px);
      box-shadow: 0 12px 24px rgba(10, 54, 34, 0.08);
    }

    .feature-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: rgba(10, 54, 34, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 20px;
      font-weight: 700;
    }

    .feature-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .feature-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .feature-status {
      display: inline-block;
      margin-top: 16px;
      font-size: 11px;
      font-weight: 600;
      padding: 2px 8px;
      background: #ECFDF5;
      color: #065F46;
      border-radius: 4px;
    }

    /* 4. 热门数据产品矩阵 (#products) */
    .product-card {
      background: #FFFFFF;
      border: 1px solid #E5E7EB;
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    }

    .product-img-wrapper {
      position: relative;
      height: 180px;
      overflow: hidden;
    }

    .product-img-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .product-card:hover .product-img-wrapper img {
      transform: scale(1.04);
    }

    .product-badge-float {
      position: absolute;
      top: 12px;
      right: 12px;
      background: rgba(10, 54, 34, 0.85);
      color: #FFFFFF;
      padding: 4px 10px;
      font-size: 12px;
      border-radius: var(--radius-sm);
      backdrop-filter: blur(4px);
    }

    .product-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .product-heading {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .product-detail {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      flex: 1;
    }

    .product-checklist {
      list-style: none;
      margin-bottom: 20px;
      border-top: 1px solid #F3F4F6;
      padding-top: 16px;
    }

    .product-checklist li {
      font-size: 13px;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .product-checklist li::before {
      content: "✓";
      color: var(--primary);
      font-weight: bold;
    }

    /* 5. 深度技术与分析理念 (#technology) */
    .tech-console-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .code-console {
      background: #06090E;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 24px;
      font-family: Consolas, Monaco, monospace;
      font-size: 13px;
      line-height: 1.6;
      color: #7EE787;
    }

    .code-comment {
      color: #8B949E;
    }

    .code-keyword {
      color: #FF7B72;
    }

    .code-prop {
      color: #79C0FF;
    }

    /* 6. 典型行业应用场景 (#scenarios) */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .scenario-box {
      background: #FFFFFF;
      border: 1px solid #E5E7EB;
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }

    .scenario-box:hover {
      border-color: var(--primary);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    }

    .scenario-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .scenario-summary {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 7. 关键数据指标统计条 (#metrics) */
    .metrics-bar {
      background-color: var(--primary-dark);
      background-image: linear-gradient(to right, rgba(10, 54, 34, 0.95), rgba(6, 35, 22, 0.95));
      border-top: 1px solid rgba(0, 230, 118, 0.2);
      border-bottom: 1px solid rgba(0, 230, 118, 0.2);
      padding: 60px 0;
      color: #FFFFFF;
    }

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

    .metric-value {
      font-size: 42px;
      font-weight: 800;
      color: var(--accent);
      font-family: monospace;
      line-height: 1.1;
      margin-bottom: 8px;
    }

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

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

    /* 8. 用户实战案例库 (#cases) */
    .case-card {
      background: #FFFFFF;
      border: 1px solid #E5E7EB;
      border-radius: var(--radius-md);
      padding: 32px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
      margin-bottom: 24px;
    }

    .case-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .case-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    .case-compare-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 13px;
      background: #F9FAFB;
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid #E5E7EB;
    }

    .case-compare-table th, .case-compare-table td {
      padding: 10px 14px;
      text-align: left;
      border-bottom: 1px solid #E5E7EB;
    }

    .case-compare-table th {
      background: #F3F4F6;
      font-weight: 600;
      color: var(--text-main);
    }

    /* 9. 多梯度接入套餐 (#pricing) */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      align-items: stretch;
    }

    .pricing-card {
      background: #FFFFFF;
      border: 1px solid #E5E7EB;
      border-radius: var(--radius-md);
      padding: 36px 28px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: var(--transition);
    }

    .pricing-card.featured {
      border-color: var(--primary);
      box-shadow: 0 16px 32px rgba(10, 54, 34, 0.12);
      transform: scale(1.02);
    }

    .pricing-featured-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #FFFFFF;
      font-size: 12px;
      font-weight: 600;
      padding: 3px 12px;
      border-radius: 20px;
    }

    .pricing-name {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .pricing-cost {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 16px;
      font-family: monospace;
    }

    .pricing-cost span {
      font-size: 14px;
      font-weight: normal;
      color: var(--text-muted);
    }

    .pricing-items {
      list-style: none;
      margin: 20px 0 30px;
      flex: 1;
    }

    .pricing-items li {
      font-size: 14px;
      color: var(--text-main);
      padding: 8px 0;
      border-bottom: 1px dashed #F3F4F6;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .pricing-items li::before {
      content: "•";
      color: var(--primary-light);
      font-weight: bold;
    }

    /* 10. 客户评价与专家口碑墙 (#reviews) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid #E5E7EB;
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }

    .user-avatar-rect {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: #FFFFFF;
      font-weight: bold;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
    }

    .user-meta strong {
      display: block;
      font-size: 15px;
      color: var(--text-main);
    }

    .user-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }

    .testimonial-content {
      font-size: 14px;
      color: #4B5563;
      line-height: 1.7;
    }

    /* 11. 行业资讯与数据报告 (#news) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .news-card {
      background: #FFFFFF;
      border: 1px solid #E5E7EB;
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .news-card:hover {
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.06);
    }

    .news-thumb {
      height: 170px;
      overflow: hidden;
    }

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

    .news-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .news-title {
      font-size: 16px;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .news-excerpt {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      flex: 1;
      margin-bottom: 16px;
    }

    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
    }

    /* 12. 常见问题 FAQ (#faq) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid #E5E7EB;
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFFFFF;
      user-select: none;
    }

    .faq-question:hover {
      background: #F9FAFB;
    }

    .faq-icon {
      font-size: 18px;
      color: var(--primary-light);
      transition: transform 0.25s ease;
    }

    .faq-answer {
      padding: 0 24px 18px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 底部唯一行动转化与表单 (#contact) */
    .cta-banner-section {
      background-color: var(--primary-dark);
      background-image: linear-gradient(135deg, rgba(6, 35, 22, 0.98), rgba(10, 54, 34, 0.95)), url('/assets/images/backpic/back-2.jpg');
      background-size: cover;
      background-position: center;
      color: #FFFFFF;
      padding: 80px 0;
      border-top: 2px solid var(--accent);
    }

    .cta-inner-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
      align-items: center;
    }

    .cta-form-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px;
      color: var(--text-main);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-input, .form-select {
      width: 100%;
      height: 44px;
      border: 1px solid #D1D5DB;
      border-radius: var(--radius-sm);
      padding: 0 14px;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(10, 54, 34, 0.15);
    }

    /* 全局统一页脚 (Footer) */
    .site-footer {
      background: #0D1117;
      color: var(--text-light-muted);
      padding: 60px 0 24px;
      font-size: 13px;
      border-top: 1px solid #21262D;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand {
      color: #FFFFFF;
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .footer-col-title {
      color: #FFFFFF;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 16px;
    }

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

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

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

    .footer-bottom {
      border-top: 1px solid #21262D;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 移动端菜单控制按钮 */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #FFFFFF;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 14px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .overview-grid, .cta-inner-grid, .case-card {
        grid-template-columns: 1fr;
      }
      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .pricing-card.featured {
        transform: none;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-dark);
        flex-direction: column;
        padding: 20px 24px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        gap: 16px;
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-action .btn {
        display: none;
      }
      .grid-3-col, .pricing-grid, .testimonial-grid, .news-grid, .metrics-grid {
        grid-template-columns: 1fr;
      }
      .scenario-grid {
        grid-template-columns: 1fr;
      }
      .top-bar {
        display: none;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .section-wrap {
        padding: 60px 0;
      }
      .section-title {
        font-size: 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }