/* roulang page: index */
:root {
      --primary: #0EA5E9;
      --primary-dark: #0284C7;
      --accent: #10B981;
      --accent-hover: #059669;
      --energy: #F97316;
      --energy-hover: #EA580C;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0F172A;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --text-light: #94A3B8;
      --border-color: #E2E8F0;
      --border-dark: #1E293B;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-full: 9999px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 6px 20px -2px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-white);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

    ul, ol {
      list-style: none;
    }

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

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

    /* 顶部信息栏 */
    .top-bar {
      background-color: #0B1329;
      color: #94A3B8;
      font-size: 13px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 8px;
      padding-bottom: 8px;
    }
    .top-bar-links {
      display: flex;
      gap: 20px;
    }
    .top-bar a:hover {
      color: #FFFFFF;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .site-header .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 76px;
    }
    .logo-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 20px;
      color: #0F172A;
      letter-spacing: -0.5px;
    }
    .logo-badge {
      background: linear-gradient(135deg, var(--accent), var(--primary));
      color: #FFFFFF;
      font-size: 13px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-item {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-item:hover, .nav-item.active {
      color: var(--primary);
    }
    .nav-item.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    /* 按钮通用 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 15px;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(14, 165, 233, 0.3);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(14, 165, 233, 0.4);
    }
    .btn-energy {
      background: linear-gradient(135deg, var(--energy), var(--energy-hover));
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
    }
    .btn-energy:hover {
      background: var(--energy-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(249, 115, 22, 0.4);
    }
    .btn-outline {
      border-color: var(--border-color);
      color: var(--text-main);
      background-color: #FFFFFF;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: rgba(14, 165, 233, 0.04);
    }

    /* 板块通用头部 */
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      background: rgba(14, 165, 233, 0.1);
      padding: 4px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. Hero 板块：拼团转化风格 */
    .hero-section {
      position: relative;
      background: radial-gradient(circle at top right, rgba(16, 185, 129, 0.08), transparent 40%),
                  radial-gradient(circle at bottom left, rgba(14, 165, 233, 0.08), transparent 40%),
                  #FFFFFF;
      padding: 70px 0 90px 0;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-tag-group {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 18px;
    }
    .hero-badge-hot {
      background: rgba(249, 115, 22, 0.12);
      color: var(--energy);
      font-size: 13px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      border: 1px solid rgba(249, 115, 22, 0.25);
    }
    .hero-title {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-title span {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .group-buy-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      box-shadow: var(--shadow-md);
      margin-bottom: 24px;
    }
    .group-status {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
    }
    .group-status-title {
      font-weight: 700;
      font-size: 15px;
      color: var(--text-main);
    }
    .group-status-count {
      font-size: 14px;
      color: var(--energy);
      font-weight: 700;
    }
    .group-progress-bar {
      width: 100%;
      height: 8px;
      background: #F1F5F9;
      border-radius: 4px;
      overflow: hidden;
      margin-bottom: 16px;
    }
    .group-progress-fill {
      width: 82%;
      height: 100%;
      background: linear-gradient(90deg, var(--energy), #FBBF24);
      border-radius: 4px;
    }
    .hero-btn-group {
      display: flex;
      gap: 14px;
    }
    .hero-image-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 4px solid #FFFFFF;
    }
    .hero-image-wrap img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .hero-float-card {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(8px);
      color: #FFFFFF;
      padding: 16px 20px;
      border-radius: var(--radius-md);
      display: flex;
      justify-content: space-around;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .hero-float-item {
      text-align: center;
    }
    .hero-float-num {
      font-size: 20px;
      font-weight: 800;
      color: var(--accent);
    }
    .hero-float-label {
      font-size: 12px;
      color: #94A3B8;
    }

    /* 2. 入口矩阵板块 */
    .matrix-section {
      padding: 70px 0;
      background-color: var(--bg-light);
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .matrix-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }
    .matrix-icon-badge {
      width: 44px;
      height: 44px;
      background: rgba(14, 165, 233, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      font-weight: 800;
      font-size: 18px;
      margin-bottom: 16px;
    }
    .matrix-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .matrix-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 最新动态 / 实时运营指标 */
    .dynamic-section {
      padding: 70px 0;
      background-color: #FFFFFF;
    }
    .dynamic-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stat-metric-card {
      background: var(--bg-light);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      border: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }
    .stat-metric-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }
    .stat-metric-value {
      font-size: 38px;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 6px;
      letter-spacing: -1px;
    }
    .stat-metric-value span {
      font-size: 18px;
      font-weight: 600;
      color: var(--primary);
      margin-left: 2px;
    }
    .stat-metric-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .stat-metric-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 4. 精选分类 / 适用场馆场景 */
    .category-section {
      padding: 70px 0;
      background-color: var(--bg-light);
    }
    .category-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .category-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .category-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .category-thumb {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .category-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .category-card:hover .category-thumb img {
      transform: scale(1.05);
    }
    .category-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .category-body h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .category-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .category-feature-list {
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .category-feature-item {
      font-size: 13px;
      color: #475569;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .category-feature-item::before {
      content: '✓';
      color: var(--accent);
      font-weight: bold;
    }

    /* 5. 深色对比区：数字化运营成效对比 */
    .compare-section {
      padding: 80px 0;
      background-color: var(--bg-dark);
      color: #FFFFFF;
    }
    .compare-section .section-title {
      color: #FFFFFF;
    }
    .compare-section .section-desc {
      color: #94A3B8;
    }
    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .compare-card {
      border-radius: var(--radius-md);
      padding: 32px;
    }
    .compare-card.traditional {
      background: #1E293B;
      border: 1px solid rgba(239, 68, 68, 0.3);
    }
    .compare-card.platform {
      background: rgba(14, 165, 233, 0.08);
      border: 1px solid var(--primary);
    }
    .compare-card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 20px;
      padding-bottom: 14px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .compare-card-title {
      font-size: 20px;
      font-weight: 700;
    }
    .compare-tag-bad {
      background: rgba(239, 68, 68, 0.2);
      color: #F87171;
      font-size: 12px;
      padding: 3px 10px;
      border-radius: var(--radius-sm);
    }
    .compare-tag-good {
      background: rgba(16, 185, 129, 0.2);
      color: #34D399;
      font-size: 12px;
      padding: 3px 10px;
      border-radius: var(--radius-sm);
    }
    .compare-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .compare-item {
      font-size: 14px;
      line-height: 1.6;
      display: flex;
      gap: 10px;
    }
    .compare-item-icon {
      font-weight: 800;
      flex-shrink: 0;
    }
    .traditional .compare-item-icon { color: #F87171; }
    .platform .compare-item-icon { color: #34D399; }

    /* 6. 服务实施与里程碑 */
    .milestone-section {
      padding: 70px 0;
      background-color: #FFFFFF;
    }
    .milestone-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }
    .milestone-step {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      position: relative;
      text-align: center;
    }
    .milestone-num {
      width: 32px;
      height: 32px;
      background: var(--primary);
      color: #FFFFFF;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px auto;
      font-size: 14px;
    }
    .milestone-step h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .milestone-step p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 7. 真实学员与场馆主应用故事 */
    .stories-section {
      padding: 70px 0;
      background-color: var(--bg-light);
    }
    .story-card-horizontal {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1fr;
      margin-bottom: 30px;
      box-shadow: var(--shadow-sm);
    }
    .story-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-content {
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .story-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 8px;
      text-transform: uppercase;
    }
    .story-title {
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 14px;
      color: var(--text-main);
    }
    .story-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .story-stats {
      display: flex;
      gap: 24px;
    }
    .story-stat-item strong {
      display: block;
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
    }
    .story-stat-item span {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 8. 行业资讯与干货列表 */
    .news-section {
      padding: 70px 0;
      background-color: #FFFFFF;
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .news-card {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }
    .news-card:hover {
      background: #FFFFFF;
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }
    .news-date {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 16px;
      font-weight: 700;
      line-height: 1.45;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .news-excerpt {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .news-action {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
    }

    /* 9. 版本更新与系统演进 */
    .version-section {
      padding: 70px 0;
      background-color: var(--bg-light);
    }
    .version-box {
      max-width: 900px;
      margin: 0 auto;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .version-item {
      display: flex;
      gap: 24px;
      padding-bottom: 24px;
      margin-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .version-item:last-child {
      padding-bottom: 0;
      margin-bottom: 0;
      border-bottom: none;
    }
    .version-tag-box {
      flex-shrink: 0;
    }
    .version-code {
      font-size: 16px;
      font-weight: 800;
      color: var(--primary);
      background: rgba(14, 165, 233, 0.1);
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      display: inline-block;
      margin-bottom: 4px;
    }
    .version-time {
      font-size: 12px;
      color: var(--text-light);
    }
    .version-details h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .version-details p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 10. App与多端同步协同 */
    .multiterminal-section {
      padding: 70px 0;
      background-color: #FFFFFF;
    }
    .terminal-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .terminal-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      background: var(--bg-light);
    }
    .terminal-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .terminal-badge {
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 4px;
      background: #E2E8F0;
      color: #475569;
    }
    .terminal-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .terminal-list {
      font-size: 13px;
      color: #475569;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    /* 11. 快速解答与常见问题 */
    .faq-section {
      padding: 70px 0;
      background-color: var(--bg-light);
    }
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-answer {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 12. 转化表单 */
    .cta-section {
      padding: 80px 0;
      background: linear-gradient(135deg, #0B1329, #1E293B);
      color: #FFFFFF;
    }
    .cta-box {
      max-width: 800px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 40px;
      text-align: center;
    }
    .cta-title {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .cta-desc {
      font-size: 15px;
      color: #94A3B8;
      margin-bottom: 30px;
    }
    .cta-form {
      display: grid;
      grid-template-columns: repeat(3, 1fr) auto;
      gap: 12px;
    }
    .cta-input, .cta-select {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.95);
      font-size: 14px;
      color: var(--text-main);
      outline: none;
    }
    .cta-input:focus, .cta-select:focus {
      border-color: var(--primary);
    }

    /* 页脚 Footer */
    .site-footer {
      background-color: #070D1E;
      color: #94A3B8;
      padding: 60px 0 24px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h3 {
      color: #FFFFFF;
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 14px;
    }
    .footer-brand p {
      line-height: 1.7;
      font-size: 13px;
      margin-bottom: 16px;
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 13px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #64748B;
    }
    .footer-bottom a {
      color: #64748B;
    }
    .footer-bottom a:hover {
      color: #94A3B8;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; }
      .hero-image-wrap { display: none; }
      .matrix-grid { grid-template-columns: repeat(2, 1fr); }
      .dynamic-grid { grid-template-columns: repeat(2, 1fr); }
      .category-grid { grid-template-columns: repeat(2, 1fr); }
      .milestone-timeline { grid-template-columns: repeat(3, 1fr); }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
      .cta-form { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .top-bar { display: none; }
      .nav-menu { display: none; }
      .hero-title { font-size: 32px; }
      .section-title { font-size: 26px; }
      .category-grid { grid-template-columns: 1fr; }
      .compare-grid { grid-template-columns: 1fr; }
      .story-card-horizontal { grid-template-columns: 1fr; }
      .terminal-grid { grid-template-columns: 1fr; }
      .milestone-timeline { grid-template-columns: 1fr; }
      .cta-form { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
    }