* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    :root {
      --primary: #0b3b5c;
      --primary-light: #1b6b93;
      --accent: #00a8e8;
      --accent-glow: #64dfdf;
      --bg-light: #f6f9fc;
      --bg-white: #ffffff;
      --text-dark: #0a2540;
      --text-gray: #425466;
      --border-light: #dce4ec;
      --shadow-sm: 0 4px 12px rgba(0, 30, 60, 0.06);
      --shadow-md: 0 12px 32px rgba(0, 60, 120, 0.12);
      --shadow-lg: 0 24px 48px -12px rgba(0, 60, 120, 0.25);
      --radius: 20px;
      --radius-sm: 12px;
      --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font);
      background: var(--bg-light);
      color: var(--text-dark);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    ul, ol {
      list-style: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    /* header / nav */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255,255,255,0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 168, 232, 0.15);
      box-shadow: 0 2px 20px rgba(0, 80, 150, 0.05);
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 72px;
      gap: 16px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-shrink: 0;
    }
    .brand img {
      width: 40px;
      height: auto;
    }
    .brand-text {
      font-weight: 700;
      font-size: 1.25rem;
      letter-spacing: -0.02em;
      color: var(--primary);
    }
    .brand-text span {
      color: var(--accent);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      flex-wrap: wrap;
    }
    .nav-links a {
      padding: 8px 14px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-gray);
      border-radius: 40px;
      transition: color 0.2s, background 0.2s;
      white-space: nowrap;
    }
    .nav-links a:hover {
      color: var(--primary);
      background: rgba(0, 168, 232, 0.08);
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .btn-outline {
      padding: 8px 20px;
      border-radius: 40px;
      border: 1.5px solid var(--accent);
      color: var(--accent);
      font-weight: 600;
      font-size: 0.9rem;
      background: transparent;
      transition: background 0.2s, color 0.2s, box-shadow 0.2s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-outline:hover {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 8px 20px rgba(0, 168, 232, 0.35);
    }
    .btn-solid {
      padding: 8px 22px;
      border-radius: 40px;
      background: linear-gradient(135deg, var(--accent), #0077be);
      color: #fff;
      font-weight: 600;
      font-size: 0.9rem;
      border: none;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 6px 16px rgba(0, 150, 220, 0.3);
    }
    .btn-solid:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(0, 150, 220, 0.45);
    }
    .menu-toggle {
      display: none;
      background: transparent;
      border: none;
      font-size: 1.6rem;
      cursor: pointer;
      color: var(--primary);
      padding: 4px 8px;
    }
    /* Hero */
    .hero {
      position: relative;
      padding: 64px 0 72px;
      overflow: hidden;
      background: radial-gradient(circle at 20% 20%, rgba(0, 168, 232, 0.08) 0%, transparent 50%),
                  radial-gradient(circle at 80% 70%, rgba(100, 223, 223, 0.08) 0%, transparent 50%),
                  linear-gradient(145deg, #f6f9fc 0%, #e7f4fa 100%);
    }
    .hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cpath d='M30 0 L60 30 L30 60 L0 30 Z' fill='none' stroke='%2300a8e8' stroke-width='0.6' opacity='0.08'/%3E%3C/svg%3E");
      background-size: 60px 60px;
      pointer-events: none;
    }
    .hero-inner {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 3rem;
      line-height: 1.2;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--primary);
      margin-bottom: 20px;
    }
    .hero-content h1 .highlight {
      background: linear-gradient(120deg, #0077be, #00a8e8, #64dfdf);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-gray);
      max-width: 560px;
      margin-bottom: 28px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }
    .btn-lg {
      padding: 14px 36px;
      font-size: 1rem;
      border-radius: 50px;
    }
    .hero-stats {
      display: flex;
      gap: 32px;
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid rgba(0, 168, 232, 0.2);
      flex-wrap: wrap;
    }
    .stat-item .num {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }
    .stat-item .label {
      font-size: 0.85rem;
      color: var(--text-gray);
    }
    .hero-visual {
      background: rgba(255,255,255,0.55);
      backdrop-filter: blur(4px);
      border-radius: 32px;
      padding: 24px 20px;
      border: 1px solid rgba(0, 168, 232, 0.2);
      box-shadow: var(--shadow-md);
    }
    .pulse-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 0 0 rgba(0, 168, 232, 0.5);
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(0, 168, 232, 0.5); }
      70% { box-shadow: 0 0 0 12px rgba(0, 168, 232, 0); }
      100% { box-shadow: 0 0 0 0 rgba(0, 168, 232, 0); }
    }
    .model-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-bottom: 20px;
    }
    .model-tag {
      background: #fff;
      padding: 8px 10px;
      border-radius: 12px;
      font-size: 0.8rem;
      font-weight: 600;
      text-align: center;
      color: var(--primary);
      border: 1px solid rgba(0, 168, 232, 0.2);
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s;
    }
    .model-tag:hover {
      transform: translateY(-3px);
      border-color: var(--accent);
    }
    .visual-note {
      font-size: 0.85rem;
      color: var(--text-gray);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    /* section通用 */
    .section {
      padding: 80px 0;
      background: var(--bg-light);
    }
    .section-alt {
      background: var(--bg-white);
    }
    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }
    .section-header h2 {
      font-size: 2rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
      letter-spacing: -0.02em;
    }
    .section-header p {
      font-size: 1.05rem;
      color: var(--text-gray);
    }
    .card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 24px;
    }
    .card {
      background: var(--bg-white);
      border-radius: var(--radius);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      border: 1px solid rgba(0, 168, 232, 0.10);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(0, 168, 232, 0.3);
    }
    .card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary);
    }
    .card p {
      color: var(--text-gray);
      font-size: 0.95rem;
    }
    .badge {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 30px;
      background: rgba(0, 168, 232, 0.12);
      color: var(--primary);
      font-size: 0.75rem;
      font-weight: 600;
      margin-bottom: 12px;
    }
    /* 数据指标 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 40px;
    }
    .metric-card {
      background: var(--bg-white);
      border-radius: var(--radius);
      padding: 32px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      border: 1px solid rgba(0, 168, 232, 0.10);
      transition: transform 0.2s;
    }
    .metric-card:hover {
      transform: scale(1.02);
    }
    .metric-value {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }
    .metric-value span {
      font-size: 1rem;
      font-weight: 500;
      color: var(--text-gray);
    }
    .metric-label {
      font-size: 0.9rem;
      color: var(--text-gray);
      margin-top: 6px;
    }
    /* 能力卡片 */
    .capability-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .cap-item {
      background: var(--bg-white);
      border-radius: var(--radius-sm);
      padding: 24px 20px;
      border-left: 4px solid var(--accent);
      box-shadow: var(--shadow-sm);
      transition: all 0.2s;
    }
    .cap-item:hover {
      border-left-width: 8px;
      box-shadow: var(--shadow-md);
    }
    .cap-item h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--primary);
    }
    .cap-item p {
      font-size: 0.9rem;
      color: var(--text-gray);
    }
    /* 流程步骤 */
    .steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      counter-reset: step;
    }
    .step-item {
      background: var(--bg-white);
      border-radius: var(--radius-sm);
      padding: 28px 20px 20px;
      box-shadow: var(--shadow-sm);
      position: relative;
      counter-increment: step;
      transition: transform 0.2s;
    }
    .step-item:hover {
      transform: translateY(-4px);
    }
    .step-item::before {
      content: counter(step);
      position: absolute;
      top: -12px;
      left: 20px;
      width: 32px;
      height: 32px;
      background: var(--accent);
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }
    .step-item h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--primary);
    }
    .step-item p {
      font-size: 0.88rem;
      color: var(--text-gray);
    }
    /* 对比表格 */
    .compare-table-wrap {
      overflow-x: auto;
      margin-top: 32px;
      border-radius: var(--radius);
      border: 1px solid var(--border-light);
      background: var(--bg-white);
    }
    .compare-table {
      width: 100%;
      min-width: 680px;
      border-collapse: collapse;
      font-size: 0.95rem;
    }
    .compare-table th {
      background: var(--primary);
      color: #fff;
      font-weight: 600;
      padding: 16px 20px;
      text-align: left;
    }
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-light);
      color: var(--text-gray);
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table .highlight-row td {
      background: rgba(0, 168, 232, 0.05);
      font-weight: 600;
      color: var(--primary);
    }
    .star-rating {
      color: #f5b342;
      letter-spacing: 2px;
    }
    /* FAQ */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-white);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      overflow: hidden;
      transition: box-shadow 0.2s;
    }
    .faq-item:hover {
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      width: 100%;
      background: transparent;
      border: none;
      padding: 18px 20px;
      font-size: 0.98rem;
      font-weight: 600;
      color: var(--primary);
      text-align: left;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: background 0.2s;
      font-family: var(--font);
    }
    .faq-question:hover {
      background: rgba(0, 168, 232, 0.03);
    }
    .faq-question .icon {
      font-size: 1.4rem;
      color: var(--accent);
      transition: transform 0.3s;
    }
    .faq-item.active .faq-question .icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s;
      padding: 0 20px;
      color: var(--text-gray);
      font-size: 0.92rem;
      background: #fafdff;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 20px 18px;
    }
    /* 评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: var(--bg-white);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      border: 1px solid rgba(0, 168, 232, 0.10);
      transition: transform 0.2s;
    }
    .review-card:hover {
      transform: translateY(-4px);
    }
    .review-stars {
      color: #f5b342;
      font-size: 1rem;
      letter-spacing: 2px;
      margin-bottom: 12px;
    }
    .review-text {
      font-size: 0.95rem;
      color: var(--text-dark);
      margin-bottom: 16px;
      line-height: 1.7;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent), #64dfdf);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 0.9rem;
    }
    .author-info h5 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--primary);
    }
    .author-info span {
      font-size: 0.8rem;
      color: var(--text-gray);
    }
    /* 案例/文章 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: var(--bg-white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid rgba(0, 168, 232, 0.10);
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .case-img {
      width: 100%;
      aspect-ratio: 16/9;
      overflow: hidden;
      background: #e7f0f8;
    }
    .case-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s;
    }
    .case-card:hover .case-img img {
      transform: scale(1.04);
    }
    .case-body {
      padding: 20px;
    }
    .case-body h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--primary);
    }
    .case-body p {
      font-size: 0.88rem;
      color: var(--text-gray);
    }
    .article-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .article-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 20px;
      background: var(--bg-white);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      transition: all 0.2s;
    }
    .article-item:hover {
      border-color: var(--accent);
      background: #fafdff;
    }
    .article-item a {
      font-weight: 600;
      color: var(--primary);
      font-size: 0.95rem;
    }
    .article-item .date {
      font-size: 0.8rem;
      color: var(--text-gray);
    }
    /* 表单 */
    .form-wrap {
      max-width: 760px;
      margin: 0 auto;
      background: var(--bg-white);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-md);
      border: 1px solid rgba(0, 168, 232, 0.15);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full {
      grid-column: 1 / -1;
    }
    .form-group label {
      font-weight: 600;
      font-size: 0.9rem;
      color: var(--primary);
    }
    .form-group input, .form-group select, .form-group textarea {
      padding: 12px 16px;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      font-family: var(--font);
      background: var(--bg-light);
      transition: border 0.2s, box-shadow 0.2s;
    }
    .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(0, 168, 232, 0.15);
      background: #fff;
    }
    .form-group textarea {
      min-height: 100px;
      resize: vertical;
    }
    .form-submit {
      margin-top: 8px;
      padding: 14px 40px;
      border-radius: 60px;
      background: linear-gradient(135deg, var(--accent), #0077be);
      color: #fff;
      font-weight: 700;
      font-size: 1rem;
      border: none;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 8px 24px rgba(0, 150, 220, 0.3);
    }
    .form-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 32px rgba(0, 150, 220, 0.45);
    }
    /* 定价参考 */
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .price-card {
      background: var(--bg-white);
      border-radius: var(--radius);
      padding: 32px 24px;
      text-align: center;
      border: 1px solid var(--border-light);
      transition: all 0.2s;
    }
    .price-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .price-card .price {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      margin: 12px 0;
    }
    .price-card .price small {
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-gray);
    }
    .price-card ul {
      text-align: left;
      margin: 20px 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-gray);
    }
    .price-card ul li::before {
      content: '✓';
      color: var(--accent);
      font-weight: 700;
      margin-right: 8px;
    }
    /* 标签云 */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 32px;
    }
    .tag-cloud a {
      padding: 8px 18px;
      background: var(--bg-white);
      border-radius: 40px;
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--text-gray);
      border: 1px solid var(--border-light);
      transition: all 0.2s;
    }
    .tag-cloud a:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: rgba(0, 168, 232, 0.05);
    }
    /* footer */
    .site-footer {
      background: var(--primary);
      color: rgba(255,255,255,0.85);
      padding: 56px 0 24px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.7;
      margin-top: 12px;
      color: rgba(255,255,255,0.7);
    }
    .footer-col h5 {
      color: #fff;
      font-weight: 700;
      margin-bottom: 16px;
      font-size: 1rem;
    }
    .footer-col a, .footer-col p {
      display: block;
      font-size: 0.9rem;
      color: rgba(255,255,255,0.7);
      margin-bottom: 8px;
      transition: color 0.2s;
    }
    .footer-col a:hover {
      color: var(--accent-glow);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.15);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
      color: rgba(255,255,255,0.6);
    }
    .footer-links a {
      color: rgba(255,255,255,0.7);
      margin-left: 20px;
      transition: color 0.2s;
    }
    .footer-links a:hover {
      color: var(--accent-glow);
    }
    /* 浮动客服 */
    .float-customer {
      position: fixed;
      right: 24px;
      bottom: 100px;
      z-index: 90;
      display: flex;
      flex-direction: column;
      gap: 10px;
      align-items: flex-end;
    }
    .float-btn {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: var(--bg-white);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
      border: 1px solid rgba(0, 168, 232, 0.2);
      color: var(--primary);
      font-size: 1.4rem;
      text-decoration: none;
    }
    .float-btn:hover {
      transform: scale(1.08);
      box-shadow: var(--shadow-lg);
    }
    .back-top {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: var(--shadow-md);
      transition: background 0.2s, transform 0.2s;
      font-size: 1.2rem;
      border: none;
      position: fixed;
      right: 24px;
      bottom: 32px;
      z-index: 90;
    }
    .back-top:hover {
      background: var(--accent);
      transform: translateY(-4px);
    }
    /* 辅助 */
    .text-center {
      text-align: center;
    }
    .mt-16 { margin-top: 16px; }
    .mt-24 { margin-top: 24px; }
    .mt-32 { margin-top: 32px; }
    .mb-16 { margin-bottom: 16px; }
    .flex-between {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    /* 响应式 */
    @media (max-width: 1024px) {
      .hero-inner { grid-template-columns: 1fr; gap: 32px; }
      .hero-content h1 { font-size: 2.4rem; }
      .capability-grid { grid-template-columns: repeat(2, 1fr); }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .steps { grid-template-columns: repeat(2, 1fr); }
      .reviews-grid { grid-template-columns: repeat(2, 1fr); }
      .case-grid { grid-template-columns: repeat(2, 1fr); }
      .price-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
        border-radius: 0 0 24px 24px;
        border-top: 1px solid var(--border-light);
        z-index: 99;
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links a {
        padding: 12px 8px;
        width: 100%;
        border-radius: 12px;
      }
      .menu-toggle { display: block; }
      .nav-cta .btn-outline { display: none; }
      .hero-content h1 { font-size: 2rem; }
      .section { padding: 56px 0; }
      .section-header h2 { font-size: 1.6rem; }
      .faq-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .case-grid { grid-template-columns: 1fr; }
      .price-grid { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .form-wrap { padding: 24px; }
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
      .footer-bottom { flex-direction: column; text-align: center; }
      .footer-links a { margin: 0 10px; }
      .hero-stats { gap: 20px; }
      .metrics-grid { grid-template-columns: 1fr 1fr; }
      .steps { grid-template-columns: 1fr; }
      .capability-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 480px) {
      .hero-content h1 { font-size: 1.7rem; }
      .btn-lg { padding: 12px 24px; font-size: 0.9rem; width: 100%; justify-content: center; }
      .hero-actions { flex-direction: column; }
      .metrics-grid { grid-template-columns: 1fr; }
    }