:root {
      --primary: #059669;
      --primary-bright: #10b981;
      --primary-dark: #047857;
      --primary-light: #ecfdf5;
      --primary-glow: rgba(16, 185, 129, 0.15);
      --accent: #16a34a;
      --text-main: #0f172a;
      --text-sub: #334155;
      --text-muted: #64748b;
      --bg-body: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f0fdf4;
      --border-color: #e2e8f0;
      --border-accent: #a7f3d0;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
      --shadow-md: 0 4px 16px -2px rgba(5, 150, 105, 0.08), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 10px 30px -5px rgba(5, 150, 105, 0.12), 0 4px 12px -2px rgba(0, 0, 0, 0.05);
      --radius: 12px;
      --radius-lg: 18px;
    }

    * {
      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-body);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    /* 通用容器规范 */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      width: 100%;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
      display: block;
    }

    .brand-title {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-sub);
      text-decoration: none;
      transition: color 0.25s ease, background-color 0.25s ease;
      border-radius: 6px;
    }

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

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

    .btn-main-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--primary-bright) 0%, var(--primary) 100%);
      color: #ffffff !important;
      font-weight: 600;
      font-size: 0.95rem;
      padding: 10px 22px;
      border-radius: 50px;
      text-decoration: none;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .btn-main-link:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #ffffff;
      color: var(--primary-dark);
      font-weight: 600;
      font-size: 0.95rem;
      padding: 10px 20px;
      border-radius: 50px;
      text-decoration: none;
      border: 1.5px solid var(--primary-bright);
      transition: all 0.2s ease;
    }

    .btn-outline:hover {
      background-color: var(--primary-light);
      color: var(--primary-dark);
    }

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

    /* 首屏 Hero（无图片，纯科技排版） */
    .hero-section {
      position: relative;
      padding: 70px 0 60px;
      background: radial-gradient(circle at 50% 10%, #d1fae5 0%, #f0fdf4 40%, #f8fafc 100%);
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid var(--border-accent);
      color: var(--primary-dark);
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 0.88rem;
      font-weight: 600;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-badge span {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--primary-bright);
      display: inline-block;
      box-shadow: 0 0 8px var(--primary-bright);
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      color: #064e3b;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-desc {
      max-width: 820px;
      margin: 0 auto 36px;
      font-size: 1.15rem;
      color: var(--text-sub);
      line-height: 1.7;
    }

    .hero-btns {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1040px;
      margin: 0 auto;
    }

    .stat-card {
      background: #ffffff;
      padding: 24px 16px;
      border-radius: var(--radius);
      border: 1px solid var(--border-accent);
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

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

    .stat-num {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 区域通用规范 */
    .section-block {
      padding: 80px 0;
      position: relative;
    }

    .section-alt {
      background-color: var(--bg-alt);
      border-top: 1px solid var(--border-accent);
      border-bottom: 1px solid var(--border-accent);
    }

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

    .section-tag {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 10px;
      display: block;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 平台核心能力介绍 */
    .about-feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-box {
      background: #ffffff;
      padding: 32px 26px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

    .feature-box:hover {
      border-color: var(--primary-bright);
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }

    .feature-icon-badge {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .feature-box h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .feature-box p {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 支持模型矩阵卡片 */
    .model-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
      max-width: 1000px;
      margin-left: auto;
      margin-right: auto;
    }

    .model-pill {
      background: #ffffff;
      border: 1px solid var(--border-accent);
      padding: 8px 18px;
      border-radius: 30px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary-dark);
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s, background-color 0.2s;
    }

    .model-pill:hover {
      background-color: var(--primary-dark);
      color: #ffffff;
      transform: scale(1.05);
    }

    /* 场景矩阵卡片网格 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scenario-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
      position: relative;
      overflow: hidden;
    }

    .scenario-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary-bright);
      opacity: 0;
      transition: opacity 0.25s ease;
    }

    .scenario-card:hover {
      border-color: var(--primary-bright);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

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

    .scenario-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }

    .scenario-title {
      font-size: 1.18rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .scenario-tag {
      background: var(--primary-light);
      color: var(--primary-dark);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
    }

    .scenario-body {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .scenario-footer {
      font-size: 0.85rem;
      color: var(--primary-dark);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 4px;
    }

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

    .step-card {
      background: #ffffff;
      padding: 30px 20px;
      border-radius: var(--radius);
      border: 1px solid var(--border-accent);
      text-align: center;
      position: relative;
    }

    .step-number {
      width: 44px;
      height: 44px;
      background: var(--primary-bright);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      font-weight: 800;
      margin: 0 auto 18px;
      box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 案例展示区（带图片容器规范） */
    .case-media-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      align-items: stretch;
      margin-bottom: 30px;
    }

    .case-banner-wrapper {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .img-box {
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #ffffff;
    }

    .img-box img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

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

    .case-info-box {
      padding: 16px;
      background: #ffffff;
    }

    .case-info-box h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .case-info-box p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .case-banners-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 10px;
    }

    /* 对比评测表格与评级 */
    .rating-banner {
      background: linear-gradient(135deg, #064e3b 0%, var(--primary-dark) 100%);
      color: #ffffff;
      padding: 36px 40px;
      border-radius: var(--radius-lg);
      margin-bottom: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: var(--shadow-lg);
      flex-wrap: wrap;
      gap: 20px;
    }

    .rating-text h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .rating-text p {
      font-size: 0.95rem;
      opacity: 0.9;
    }

    .rating-score-group {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .score-badge {
      text-align: center;
      background: rgba(255,255,255,0.15);
      padding: 12px 24px;
      border-radius: var(--radius);
      border: 1px solid rgba(255,255,255,0.25);
    }

    .score-badge .score-val {
      font-size: 2.4rem;
      font-weight: 900;
      color: #34d399;
      line-height: 1;
    }

    .score-badge .score-total {
      font-size: 0.85rem;
      opacity: 0.8;
    }

    .stars-val {
      font-size: 1.4rem;
      color: #facc15;
      letter-spacing: 2px;
    }

    .comparison-table-wrapper {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }

    .comp-table th, .comp-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .comp-table th {
      background-color: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .comp-table tr.highlight-row {
      background-color: #f0fdf4;
      font-weight: 600;
    }

    .comp-table tr.highlight-row td {
      color: var(--primary-dark);
    }

    .badge-check {
      color: var(--primary);
      font-weight: bold;
    }

    /* 代理加盟 & 收益机制 */
    .agent-card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .agent-card {
      background: #ffffff;
      border: 1px solid var(--border-accent);
      border-radius: var(--radius);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .agent-card h4 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }

    .agent-card p {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 16px;
    }

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

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

    .review-text {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

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

    .reviewer-info h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .reviewer-info span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 常见问题 FAQ 手风琴 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-accordion-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .faq-question-btn {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      transition: background-color 0.2s ease;
    }

    .faq-question-btn:hover {
      background-color: var(--primary-light);
    }

    .faq-icon-arrow {
      font-size: 0.9rem;
      transition: transform 0.25s ease;
      color: var(--primary);
    }

    .faq-accordion-item.active .faq-icon-arrow {
      transform: rotate(180deg);
    }

    .faq-answer-panel {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 24px;
      background-color: #fafbfc;
    }

    .faq-accordion-item.active .faq-answer-panel {
      max-height: 300px;
      padding: 16px 24px 22px;
      border-top: 1px solid var(--border-color);
    }

    .faq-answer-panel p {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.7;
    }

    /* 资讯中心与文章 */
    .articles-section-box {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 24px 30px;
      border: 1px solid var(--border-color);
      margin-bottom: 24px;
    }

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

    .article-link-item {
      display: block;
      padding: 10px 14px;
      background: var(--bg-body);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      color: var(--text-sub);
      text-decoration: none;
      font-size: 0.88rem;
      transition: all 0.2s;
    }

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

    /* 需求匹配与表单 */
    .contact-wrapper-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      align-items: start;
    }

    .contact-info-panel {
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-accent);
      box-shadow: var(--shadow-sm);
    }

    .contact-info-panel h3 {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 16px;
    }

    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 20px;
      font-size: 0.95rem;
      color: var(--text-sub);
    }

    .qr-container {
      margin-top: 24px;
      padding: 20px;
      background: var(--primary-light);
      border-radius: var(--radius);
      text-align: center;
      border: 1px dashed var(--border-accent);
    }

    .qr-container img {
      max-width: 140px;
      height: auto;
      border-radius: 8px;
      margin-bottom: 8px;
      background: #fff;
      padding: 4px;
    }

    .form-panel {
      background: #ffffff;
      padding: 40px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .form-panel h3 {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
    }

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

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1.5px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      color: var(--text-main);
      background-color: #ffffff;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      font-family: inherit;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary-bright);
      box-shadow: 0 0 0 3px var(--primary-glow);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 页脚设计 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      color: var(--text-sub);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background-color: var(--primary);
    }

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

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

    .footer-links-list li a {
      color: var(--text-sub);
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.2s ease;
    }

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

    .friend-links-wrap {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      margin-bottom: 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
    }

    .friend-links-wrap span {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .friend-links-wrap a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.88rem;
      transition: color 0.2s;
    }

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

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 浮动工具栏 */
    .float-toolbar {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 1px solid var(--border-accent);
      border-radius: 50%;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-dark);
      text-decoration: none;
      font-size: 1.2rem;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .float-btn:hover {
      background: var(--primary-dark);
      color: #ffffff;
      transform: translateY(-3px);
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-stats-grid,
      .flow-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-grid,
      .about-feature-grid,
      .agent-card-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 4px 12px rgba(0,0,0,0.08);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 12px 0;
        border-bottom: 1px solid #f1f5f9;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-stats-grid,
      .scenario-grid,
      .about-feature-grid,
      .agent-card-grid,
      .reviews-grid,
      .flow-steps-grid,
      .case-media-grid,
      .case-banners-row,
      .contact-wrapper-grid,
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        text-align: center;
      }
      .rating-score-group {
        justify-content: center;
      }
    }