:root {
      --primary: #d62427;
      --primary-hover: #b81c1f;
      --primary-light: #fff0f0;
      --primary-glow: rgba(214, 36, 39, 0.12);
      --accent: #ff474a;
      --text-main: #1d2129;
      --text-sub: #4e5969;
      --text-muted: #86909c;
      --bg-page: #fbf9f8;
      --bg-card: #ffffff;
      --border-color: #f0e6e6;
      --border-hover: #fca5a5;
      --shadow-sm: 0 2px 8px rgba(184, 28, 31, 0.04);
      --shadow-md: 0 8px 24px rgba(184, 28, 31, 0.08);
      --shadow-lg: 0 16px 36px rgba(184, 28, 31, 0.12);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --container-max: 1200px;
    }

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

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

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

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-area .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
      display: block;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.2px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links a {
      padding: 8px 14px;
      font-size: 0.925rem;
      font-weight: 500;
      color: var(--text-sub);
      border-radius: var(--radius-sm);
      transition: color 0.2s, background-color 0.2s;
    }

    .nav-links a:hover {
      color: var(--primary);
      background-color: var(--primary-light);
    }

    .nav-action {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      text-align: center;
      line-height: 1.2;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(214, 36, 39, 0.3);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #ff3337 0%, #a81719 100%);
      box-shadow: 0 6px 18px rgba(214, 36, 39, 0.4);
      transform: translateY(-1px);
      color: #ffffff;
    }

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

    .btn-outline:hover {
      background-color: var(--primary-light);
      transform: translateY(-1px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-main);
      padding: 4px;
    }

    /* 首屏 Hero 区域（严禁出现任何图片） */
    .hero-section {
      position: relative;
      padding: 80px 0 60px;
      background: radial-gradient(circle at 80% 20%, rgba(255, 71, 74, 0.08) 0%, transparent 60%),
                  radial-gradient(circle at 10% 80%, rgba(214, 36, 39, 0.06) 0%, transparent 50%),
                  #ffffff;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-container {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: var(--primary-light);
      border: 1px solid rgba(214, 36, 39, 0.2);
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 20px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--primary);
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.9); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 10px rgba(214,36,39,0.5); }
      100% { transform: scale(0.9); opacity: 0.8; }
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

    .hero-title span {
      color: var(--primary);
    }

    .hero-desc {
      font-size: 1.125rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 600px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 40px;
    }

    .btn-hero-main {
      padding: 14px 34px;
      font-size: 1.05rem;
    }

    .hero-features-list {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      border-top: 1px solid #f0e6e6;
      padding-top: 24px;
    }

    .hero-feat-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      color: var(--text-sub);
      font-weight: 500;
    }

    .feat-icon {
      color: var(--primary);
      font-weight: 700;
    }

    /* 首屏纯CSS可视化交互卡 */
    .hero-visual-card {
      background: #ffffff;
      border: 1px solid rgba(214, 36, 39, 0.15);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .hero-visual-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 16px;
      margin-bottom: 20px;
    }

    .hero-visual-status {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 10px;
      border-radius: 4px;
    }

    .model-tags-matrix {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-bottom: 24px;
    }

    .matrix-item {
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 10px 8px;
      text-align: center;
      font-size: 0.825rem;
      font-weight: 600;
      color: var(--text-sub);
      transition: all 0.2s;
    }

    .matrix-item:hover {
      background: var(--primary-light);
      border-color: var(--border-hover);
      color: var(--primary);
      transform: translateY(-2px);
    }

    .hero-metric-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .metric-box {
      background: #fff8f8;
      border-radius: var(--radius-md);
      padding: 16px;
      border-left: 3px solid var(--primary);
    }

    .metric-value {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary);
    }

    .metric-label {
      font-size: 0.8rem;
      color: var(--text-sub);
      margin-top: 4px;
    }

    /* 通用Section */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }

    .section-wrap:nth-child(even) {
      background-color: #ffffff;
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.825rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      background: var(--primary-light);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 平台介绍模块 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .intro-card-left {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .intro-p {
      color: var(--text-sub);
      font-size: 1rem;
      line-height: 1.8;
      margin-bottom: 20px;
    }

    .intro-highlights {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }

    .intro-hi-box {
      background: var(--bg-page);
      padding: 16px;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--primary);
    }

    .intro-hi-title {
      font-weight: 700;
      font-size: 0.95rem;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .intro-hi-desc {
      font-size: 0.825rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .media-card {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      background: #ffffff;
    }

    .media-card img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }

    .media-card:hover img {
      transform: scale(1.02);
    }

    /* AIGC能力卡片组 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: all 0.3s ease;
      position: relative;
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      transform: translateY(-5px);
      border-color: var(--border-hover);
      box-shadow: var(--shadow-md);
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--primary);
      opacity: 0;
      transition: opacity 0.3s;
      border-radius: var(--radius-md) var(--radius-md) 0 0;
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.2rem;
      margin-bottom: 18px;
    }

    .service-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .service-desc {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .service-tag {
      font-size: 0.775rem;
      background: #f4f0ef;
      color: var(--text-sub);
      padding: 3px 8px;
      border-radius: 4px;
      align-self: flex-start;
    }

    /* 流程步骤 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .flow-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      position: relative;
    }

    .flow-num {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      margin: 0 auto 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }

    .flow-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .flow-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 案例展示区 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-sm);
    }

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

    .case-img-wrap {
      position: relative;
      aspect-ratio: 16 / 9;
      background: #eee;
      overflow: hidden;
    }

    .case-img-wrap.aspect-square {
      aspect-ratio: 1 / 1;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .case-info {
      padding: 22px;
    }

    .case-category {
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 6px;
      display: block;
    }

    .case-name {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-summary {
      font-size: 0.875rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 对比评测板块 */
    .eval-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .eval-score-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 28px;
      border-bottom: 2px dashed var(--border-color);
      margin-bottom: 30px;
    }

    .score-badge-group {
      display: flex;
      align-items: baseline;
      gap: 12px;
    }

    .score-big {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .score-max {
      font-size: 1.1rem;
      color: var(--text-muted);
    }

    .score-stars {
      color: #ff9900;
      font-size: 1.25rem;
      letter-spacing: 3px;
    }

    .eval-table-wrap {
      overflow-x: auto;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .eval-table th, .eval-table td {
      padding: 16px 18px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    .eval-table th {
      background: var(--bg-page);
      font-weight: 700;
      color: var(--text-main);
    }

    .eval-table tr:hover td {
      background-color: #fffaf9;
    }

    .eval-feature-name {
      font-weight: 600;
      color: var(--text-main);
    }

    .highlight-cell {
      color: var(--primary);
      font-weight: 700;
    }

    /* Token比价卡片 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-tier-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      text-align: center;
      transition: all 0.3s;
      position: relative;
    }

    .token-tier-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
    }

    .token-tag {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #ffffff;
      padding: 2px 14px;
      font-size: 0.75rem;
      border-radius: 12px;
      font-weight: 700;
    }

    .tier-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .tier-price {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .tier-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .tier-list {
      text-align: left;
      margin-bottom: 28px;
      font-size: 0.9rem;
      color: var(--text-sub);
    }

    .tier-list li {
      padding: 6px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .tier-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 800;
    }

    /* 需求匹配与表单 */
    .matching-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background: #ffffff;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px var(--primary-glow);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.925rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 20px;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .user-avatar-text {
      width: 40px;
      height: 40px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }

    .user-meta-name {
      font-weight: 700;
      font-size: 0.9rem;
      color: var(--text-main);
    }

    .user-meta-role {
      font-size: 0.775rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠面板 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color 0.2s;
    }

    .faq-item.active {
      border-color: var(--border-hover);
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 600;
      font-size: 1rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.25s ease;
      color: var(--primary);
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 24px;
      color: var(--text-sub);
      font-size: 0.925rem;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 24px 20px;
    }

    /* 资讯与百科 */
    .articles-links-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      margin-top: 24px;
    }

    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 12px;
      margin-top: 16px;
    }

    .article-link-chip {
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      color: var(--text-sub);
      word-break: break-all;
      transition: all 0.2s;
    }

    .article-link-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
    }

    /* 页脚与底部声明（浅底深字安全配色） */
    .site-footer {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      color: var(--text-sub);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
    }

    .footer-links-list li {
      margin-bottom: 10px;
      font-size: 0.875rem;
    }

    .footer-links-list a {
      color: var(--text-sub);
    }

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

    .qr-box {
      display: inline-block;
      padding: 8px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-top: 8px;
    }

    .qr-box img {
      width: 110px;
      height: 110px;
      display: block;
      object-fit: contain;
    }

    .friend-links-bar {
      border-top: 1px solid var(--border-color);
      padding: 20px 0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      font-size: 0.85rem;
    }

    .friend-links-bar a {
      color: var(--text-sub);
      background: var(--bg-page);
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }

    .friend-links-bar a:hover {
      color: var(--primary);
      border-color: var(--border-hover);
    }

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 悬浮客服面板 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      color: var(--primary);
      font-weight: 700;
      transition: all 0.25s;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-container {
        grid-template-columns: 1fr;
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
      .matching-wrap {
        grid-template-columns: 1fr;
      }
      .cases-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .token-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-title {
        font-size: 2.2rem;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 0;
      }
      .cases-grid {
        grid-template-columns: 1fr;
      }
      .flow-steps {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 1.85rem;
      }
    }