/* roulang page: index */
:root {
      --primary: #FF5500;
      --primary-hover: #E04B00;
      --primary-light: rgba(255, 85, 0, 0.1);
      --secondary: #00D2BA;
      --secondary-dark: #00A390;
      --dark-base: #0B0F19;
      --dark-card: #161F30;
      --dark-border: rgba(0, 210, 186, 0.18);
      --light-base: #F4F7FA;
      --light-card: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --text-light: #F8FAFC;
      --text-dim: #94A3B8;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 12px 24px -4px rgba(11, 15, 25, 0.08);
      --shadow-lg: 0 20px 40px -15px rgba(11, 15, 25, 0.12);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      line-height: 1.75;
      color: var(--text-main);
      background-color: #FFFFFF;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    ul, ol {
      list-style: none;
    }

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

    button, input, textarea, select {
      font-family: inherit;
      font-size: 1rem;
      outline: none;
    }

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

    /* 顶部与导航 */
    .top-bar {
      background-color: var(--dark-base);
      color: var(--text-dim);
      font-size: 0.85rem;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-info span {
      margin-right: 18px;
    }
    .top-bar-info i {
      color: var(--secondary);
      margin-right: 6px;
    }

    .main-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      box-shadow: 0 2px 15px rgba(0,0,0,0.06);
      border-bottom: 1px solid rgba(0,0,0,0.05);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--dark-base);
      letter-spacing: -0.02em;
    }
    .logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), #FF7733);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.2rem;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-link {
      font-weight: 600;
      font-size: 0.95rem;
      color: #334155;
      padding: 6px 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      border-radius: 50px;
      font-weight: 600;
      font-size: 0.95rem;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
    }
    .btn-primary {
      background: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.35);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 85, 0, 0.45);
    }
    .btn-secondary {
      background: var(--secondary);
      color: var(--dark-base);
      font-weight: 700;
    }
    .btn-secondary:hover {
      background: #00BFA8;
      transform: translateY(-2px);
    }
    .btn-outline {
      background: transparent;
      border-color: rgba(255, 255, 255, 0.3);
      color: #FFFFFF;
    }
    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #FFFFFF;
    }
    .mobile-toggle {
      display: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--dark-base);
    }

    /* 板块通用规范 */
    .section-padding {
      padding: 90px 0;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: 50px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--dark-base);
      letter-spacing: -0.02em;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 1. Hero 优惠券与强行动首屏 */
    .hero-section {
      background: linear-gradient(135deg, #0B0F19 0%, #161F30 100%), url('/assets/images/0b52717d0bde544c.webp') center/cover no-repeat;
      background-blend-mode: overlay;
      color: #FFFFFF;
      padding: 80px 0 100px 0;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 3.1rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.02em;
    }
    .hero-content h1 span {
      color: var(--primary);
    }
    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-dim);
      margin-bottom: 32px;
      line-height: 1.8;
    }
    .coupon-card-main {
      background: linear-gradient(135deg, rgba(255, 85, 0, 0.15) 0%, rgba(0, 210, 186, 0.15) 100%);
      border: 1px dashed var(--secondary);
      border-radius: var(--radius-lg);
      padding: 30px;
      backdrop-filter: blur(10px);
      position: relative;
      overflow: hidden;
      box-shadow: 0 15px 35px rgba(0,0,0,0.3);
    }
    .coupon-badge {
      position: absolute;
      top: 14px;
      right: -30px;
      background: var(--primary);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 32px;
      transform: rotate(45deg);
    }
    .coupon-val {
      font-size: 3rem;
      font-weight: 900;
      color: #FFFFFF;
      display: flex;
      align-items: baseline;
      gap: 4px;
      margin-bottom: 8px;
    }
    .coupon-val small {
      font-size: 1.4rem;
      color: var(--secondary);
    }
    .coupon-limit {
      color: var(--text-dim);
      font-size: 0.9rem;
      margin-bottom: 20px;
    }
    .flash-sale-bar {
      margin-top: 40px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 16px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }
    .timer-box {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
    }
    .timer-unit {
      background: var(--primary);
      color: #fff;
      font-weight: 800;
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 1rem;
    }

    /* 2. 行业痛点与传统对比清单 (Pain Points) */
    .pain-section {
      background: #FFFFFF;
    }
    .pain-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .pain-card {
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      gap: 20px;
      align-items: flex-start;
      background: #FAFCFE;
      transition: var(--transition);
    }
    .pain-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .pain-num {
      width: 36px;
      height: 36px;
      background: #FEE2E2;
      color: #EF4444;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .pain-content h3 {
      font-size: 1.15rem;
      color: var(--dark-base);
      margin-bottom: 6px;
    }
    .pain-content p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 科技架构与解决方案 (Tech & Solutions) */
    .tech-section {
      background: var(--light-base);
    }
    .tech-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .tech-image-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }
    .tech-tag-float {
      position: absolute;
      bottom: 20px;
      left: 20px;
      background: rgba(11, 15, 25, 0.85);
      backdrop-filter: blur(8px);
      color: #fff;
      padding: 12px 20px;
      border-radius: var(--radius-md);
      border-left: 4px solid var(--secondary);
    }
    .tech-spec-item {
      display: flex;
      gap: 16px;
      margin-bottom: 24px;
    }
    .tech-spec-icon {
      width: 48px;
      height: 48px;
      background: #FFFFFF;
      border: 1px solid rgba(0, 210, 186, 0.3);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--secondary-dark);
      font-size: 1.25rem;
      flex-shrink: 0;
    }
    .tech-spec-text h4 {
      font-size: 1.1rem;
      color: var(--dark-base);
      margin-bottom: 4px;
    }
    .tech-spec-text p {
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    /* 4. 六大核心技术优势 (Core Strengths) */
    .strengths-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .strength-card {
      background: #FFFFFF;
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-lg);
      padding: 32px 26px;
      transition: var(--transition);
      position: relative;
    }
    .strength-card:hover {
      border-color: var(--secondary);
      transform: translateY(-5px);
      box-shadow: 0 16px 32px rgba(0, 210, 186, 0.1);
    }
    .strength-icon {
      width: 56px;
      height: 56px;
      background: var(--light-base);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.5rem;
      margin-bottom: 20px;
      transition: var(--transition);
    }
    .strength-card:hover .strength-icon {
      background: var(--primary);
      color: #FFFFFF;
    }
    .strength-card h3 {
      font-size: 1.2rem;
      color: var(--dark-base);
      margin-bottom: 12px;
    }
    .strength-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 5. 热门旗舰设备展示 (Featured Products) */
    .products-section {
      background: #FFFFFF;
    }
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .product-card {
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: #FFFFFF;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .product-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-6px);
      border-color: var(--primary);
    }
    .product-thumb {
      height: 230px;
      overflow: hidden;
      position: relative;
    }
    .product-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .product-card:hover .product-thumb img {
      transform: scale(1.06);
    }
    .product-badge {
      position: absolute;
      top: 12px;
      left: 12px;
      background: var(--dark-base);
      color: var(--secondary);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
    }
    .product-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .product-body h3 {
      font-size: 1.25rem;
      color: var(--dark-base);
      margin-bottom: 10px;
    }
    .product-specs-list {
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .product-specs-list li {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .product-specs-list li i {
      color: var(--secondary-dark);
      font-size: 0.8rem;
    }
    .product-foot {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
      margin-top: auto;
    }
    .product-price {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary);
    }

    /* 6. 深色运动场景 (Dark Concept & Scenes) */
    .scenes-section {
      background: var(--dark-base);
      color: #FFFFFF;
      position: relative;
    }
    .scenes-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .scene-card {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }
    .scene-card:hover {
      border-color: var(--secondary);
      transform: translateY(-4px);
    }
    .scene-icon {
      font-size: 2rem;
      color: var(--secondary);
      margin-bottom: 16px;
    }
    .scene-card h3 {
      font-size: 1.15rem;
      margin-bottom: 8px;
    }
    .scene-card p {
      font-size: 0.88rem;
      color: var(--text-dim);
      line-height: 1.6;
    }

    /* 7. 案例与体能改造 (Case Studies) */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }
    .case-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: #FFFFFF;
      border: 1px solid #E2E8F0;
      box-shadow: var(--shadow-sm);
    }
    .case-img {
      height: 240px;
    }
    .case-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-content {
      padding: 28px;
    }
    .case-tag {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 6px;
    }
    .case-content h3 {
      font-size: 1.25rem;
      color: var(--dark-base);
      margin-bottom: 12px;
    }
    .case-content p {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 8. 核心统计数据条 (Metrics & Stats) */
    .metrics-section {
      background: linear-gradient(135deg, #161F30 0%, #0B0F19 100%);
      color: #FFFFFF;
      padding: 60px 0;
      border-top: 1px solid rgba(0, 210, 186, 0.15);
      border-bottom: 1px solid rgba(0, 210, 186, 0.15);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-item h3 {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--secondary);
      margin-bottom: 6px;
      font-family: inherit;
    }
    .metric-item p {
      font-size: 0.95rem;
      color: var(--text-dim);
    }

    /* 9. 用户与教练评价矩阵 (Social Proof) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background: #FFFFFF;
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-lg);
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }
    .review-stars {
      color: #F59E0B;
      font-size: 0.9rem;
      margin-bottom: 14px;
    }
    .review-quote {
      font-size: 0.95rem;
      color: #334155;
      font-style: italic;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .reviewer-avatar {
      width: 44px;
      height: 44px;
      background: var(--light-base);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
    }
    .reviewer-details h4 {
      font-size: 0.95rem;
      color: var(--dark-base);
    }
    .reviewer-details span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 10. 科研动态与前沿资讯 (News & Science) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: #FFFFFF;
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-thumb {
      height: 180px;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 22px;
      flex-grow: 1;
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--secondary-dark);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .news-body h3 {
      font-size: 1.1rem;
      color: var(--dark-base);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 11. 采购配置与套餐对比 (Pricing / Package Comparison) */
    .comparison-table-wrap {
      overflow-x: auto;
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      border: 1px solid #E2E8F0;
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .comparison-table th, .comparison-table td {
      padding: 18px 24px;
      border-bottom: 1px solid #F1F5F9;
    }
    .comparison-table th {
      background: #F8FAFC;
      font-size: 1rem;
      font-weight: 700;
      color: var(--dark-base);
    }
    .comparison-table tr:hover td {
      background: #FAFCFE;
    }
    .table-check {
      color: var(--secondary-dark);
      font-weight: bold;
    }

    /* 12. 官方品质保障条 (Guarantees) */
    .guarantees-bar {
      background: #FFFFFF;
      padding: 40px 0;
      border-top: 1px solid #E2E8F0;
      border-bottom: 1px solid #E2E8F0;
    }
    .guarantees-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .guarantee-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      flex-shrink: 0;
    }
    .guarantee-text h4 {
      font-size: 1rem;
      color: var(--dark-base);
      margin-bottom: 2px;
    }
    .guarantee-text p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 13. 商业咨询与转化表单 (Conversion Form) */
    .conversion-section {
      background: linear-gradient(135deg, #0B0F19 0%, #161F30 100%);
      color: #FFFFFF;
    }
    .conversion-box {
      max-width: 800px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-lg);
      padding: 44px;
      backdrop-filter: blur(10px);
    }
    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-bottom: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full {
      grid-column: 1 / -1;
    }
    .form-group label {
      font-size: 0.9rem;
      color: var(--text-dim);
    }
    .form-control {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      color: #FFFFFF;
      font-size: 0.95rem;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--secondary);
      background: rgba(255, 255, 255, 0.12);
    }

    /* 页脚 (Footer) */
    .site-footer {
      background: var(--dark-base);
      color: var(--text-dim);
      font-size: 0.9rem;
      padding: 70px 0 30px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-logo {
      font-size: 1.35rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
      display: inline-block;
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1.05rem;
      margin-bottom: 20px;
      font-weight: 700;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--secondary);
      padding-left: 4px;
    }
    .footer-contact li {
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-contact i {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
    }

    /* 移动端底部固定转化悬浮条 */
    .mobile-sticky-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(11, 15, 25, 0.96);
      backdrop-filter: blur(8px);
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding: 10px 16px;
      z-index: 999;
      box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.2);
    }
    .mobile-sticky-inner {
      display: flex;
      gap: 12px;
    }
    .mobile-sticky-inner .btn {
      flex: 1;
      font-size: 0.9rem;
      padding: 12px 8px;
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .hero-grid, .tech-grid {
        grid-template-columns: 1fr;
      }
      .strengths-grid, .products-grid, .reviews-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenes-grid, .guarantees-grid, .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 72px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 72px);
        background: #FFFFFF;
        flex-direction: column;
        align-items: flex-start;
        padding: 30px;
        gap: 20px;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
      }
      .nav-menu.active {
        left: 0;
      }
      .hero-content h1 {
        font-size: 2.2rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .section-padding {
        padding: 60px 0;
      }
      .pain-list, .cases-grid, .strengths-grid, .products-grid, .scenes-grid, .reviews-grid, .news-grid, .metrics-grid, .guarantees-grid, .form-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .mobile-sticky-bar {
        display: block;
      }
      body {
        padding-bottom: 60px;
      }
    }