:root {
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --neon-cyan: #06b6d4;
      --neon-magenta: #ec4899;
      --neon-violet: #8b5cf6;
      --neon-amber: #f59e0b;
      --neon-border: linear-gradient(135deg, rgba(6, 182, 212, 0.4), rgba(236, 72, 153, 0.4));
      --border-color: #e2e8f0;
      --max-w: 1200px;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-neon: 0 10px 25px -5px rgba(6, 182, 212, 0.15), 0 8px 10px -6px rgba(236, 72, 153, 0.1);
      --shadow-hover: 0 20px 30px -10px rgba(139, 92, 246, 0.2);
      --radius-lg: 16px;
      --radius-md: 12px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      background-color: var(--bg-main);
      background-image: 
        radial-gradient(circle at 15% 10%, rgba(6, 182, 212, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 85% 30%, rgba(236, 72, 153, 0.05) 0%, transparent 45%),
        radial-gradient(circle at 50% 80%, rgba(139, 92, 246, 0.04) 0%, transparent 50%);
      background-attachment: fixed;
      overflow-x: hidden;
    }

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-box .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }
    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: #0f172a;
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }
    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-muted);
      padding: 8px 14px;
      border-radius: 6px;
      display: inline-block;
    }
    .nav-links li a:hover {
      color: #7928ca;
      background: rgba(139, 92, 246, 0.08);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-nav-primary {
      background: linear-gradient(135deg, #06b6d4, #8b5cf6);
      color: #ffffff !important;
      padding: 8px 18px;
      border-radius: 999px;
      font-size: 0.88rem;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
    }
    .btn-nav-primary:hover {
      box-shadow: 0 6px 18px rgba(139, 92, 246, 0.4);
      transform: translateY(-1px);
    }

    /* 移动端菜单切换按钮 */
    .menu-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--border-color);
      padding: 6px 10px;
      border-radius: 6px;
      cursor: pointer;
      font-size: 1.2rem;
      color: var(--text-main);
    }

    /* 通用Section */
    section {
      padding: 72px 0;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }
    .badge-pill {
      display: inline-block;
      padding: 4px 14px;
      background: rgba(139, 92, 246, 0.1);
      border: 1px solid rgba(139, 92, 246, 0.25);
      border-radius: 999px;
      color: #7c3aed;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.5px;
      margin-bottom: 14px;
      text-transform: uppercase;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.3;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Hero 首屏 - 无任何图片 */
    .hero-section {
      padding: 80px 0 60px;
      position: relative;
    }
    .hero-inner {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid #e0e7ff;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.08);
      border-radius: 999px;
      padding: 6px 18px;
      font-size: 0.85rem;
      font-weight: 700;
      color: #4f46e5;
      margin-bottom: 24px;
    }
    .hero-tag-dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10b981;
    }
    .hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #0f172a;
      letter-spacing: -1px;
    }
    .text-highlight {
      color: #7c3aed;
      position: relative;
      display: inline-block;
    }
    .text-highlight::after {
      content: "";
      position: absolute;
      bottom: 2px;
      left: 0;
      width: 100%;
      height: 8px;
      background: rgba(6, 182, 212, 0.2);
      z-index: -1;
      border-radius: 4px;
    }
    .hero-lead {
      font-size: 1.15rem;
      color: #334155;
      margin-bottom: 36px;
      line-height: 1.75;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-btns {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 48px;
    }
    .btn-main-official {
      background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      padding: 14px 34px;
      border-radius: 12px;
      box-shadow: 0 10px 24px rgba(6, 182, 212, 0.35);
      border: 1px solid rgba(255, 255, 255, 0.3);
      position: relative;
      overflow: hidden;
    }
    .btn-main-official:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(139, 92, 246, 0.45);
    }
    .btn-outline-neon {
      background: #ffffff;
      color: #0f172a;
      font-size: 1.05rem;
      font-weight: 700;
      padding: 14px 30px;
      border-radius: 12px;
      border: 1.5px solid #cbd5e1;
      box-shadow: var(--shadow-sm);
    }
    .btn-outline-neon:hover {
      border-color: #8b5cf6;
      color: #7c3aed;
      background: #faf5ff;
    }

    /* 纯代码几何科技面板 - 替代图片 */
    .hero-visual-board {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-neon);
      position: relative;
    }
    .visual-board-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid #f1f5f9;
      padding-bottom: 16px;
      margin-bottom: 24px;
    }
    .status-indicators {
      display: flex;
      gap: 8px;
    }
    .status-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .dot-red { background: #ef4444; }
    .dot-yellow { background: #f59e0b; }
    .dot-green { background: #10b981; }

    .board-metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .board-metric-item {
      padding: 16px;
      border-radius: var(--radius-md);
      background: #f8fafc;
      border: 1px solid #f1f5f9;
      text-align: left;
    }
    .board-metric-item:hover {
      background: #ffffff;
      border-color: rgba(6, 182, 212, 0.4);
      box-shadow: 0 4px 15px rgba(6, 182, 212, 0.08);
    }
    .board-label {
      font-size: 0.8rem;
      color: var(--text-light);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .board-val {
      font-size: 1.4rem;
      font-weight: 800;
      color: #0f172a;
    }
    .neon-pulse-text {
      color: #059669;
      font-size: 0.78rem;
      font-weight: 700;
    }

    /* 多模型生态徽章墙 */
    .model-strip {
      margin-top: 36px;
      padding: 16px;
      background: rgba(255, 255, 255, 0.8);
      border: 1px dashed #cbd5e1;
      border-radius: var(--radius-md);
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
      align-items: center;
    }
    .model-strip-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-right: 6px;
    }
    .model-tag {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 0.75rem;
      font-weight: 600;
      color: #334155;
    }

    /* 卡片网格通用 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .neon-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
    }
    .neon-card:hover {
      transform: translateY(-4px);
      border-color: rgba(139, 92, 246, 0.4);
      box-shadow: var(--shadow-hover);
    }
    .neon-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(236, 72, 153, 0.1));
      border: 1px solid rgba(6, 182, 212, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      color: #7c3aed;
      margin-bottom: 20px;
      font-weight: bold;
    }
    .card-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: #0f172a;
    }
    .card-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 场景矩阵卡片 */
    .scene-item-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 20px;
    }
    .scene-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 20px;
      transition: all 0.25s ease;
      border-left: 4px solid #06b6d4;
    }
    .scene-card:hover {
      border-left-color: #ec4899;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0,0,0,0.06);
    }
    .scene-name {
      font-size: 1rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .scene-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测模块 */
    .review-highlight-banner {
      background: linear-gradient(135deg, #f0fdf4 0%, #ecfeff 100%);
      border: 1px solid #bbf7d0;
      border-radius: var(--radius-lg);
      padding: 24px 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 32px;
    }
    .score-badge-wrap {
      display: flex;
      align-items: center;
      gap: 18px;
    }
    .score-big {
      font-size: 2.8rem;
      font-weight: 900;
      color: #059669;
      line-height: 1;
    }
    .score-detail-text h4 {
      font-size: 1.15rem;
      color: #065f46;
      margin-bottom: 4px;
    }
    .stars-icon {
      color: #f59e0b;
      font-size: 1.1rem;
      letter-spacing: 2px;
    }
    .review-action-tag {
      background: #059669;
      color: #ffffff;
      padding: 8px 16px;
      border-radius: 999px;
      font-weight: 600;
      font-size: 0.85rem;
    }

    .table-container {
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }
    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
    }
    .custom-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #334155;
    }
    .custom-table tr:last-child td {
      border-bottom: none;
    }
    .custom-table tr:hover {
      background: #faf5ff;
    }
    .cell-feature {
      font-weight: 600;
      color: #0f172a;
    }
    .cell-jx {
      color: #7c3aed;
      font-weight: 700;
    }
    .tag-check {
      color: #10b981;
      font-weight: bold;
    }

    /* 素材展示 - 严格仅在正文指定区域出现 */
    .media-card-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      align-items: center;
    }
    .media-item-box {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease;
    }
    .media-item-box:hover {
      transform: translateY(-4px);
    }
    .media-img-wrap {
      width: 100%;
      background: #f1f5f9;
      display: block;
      text-align: center;
    }
    .media-img-wrap img {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
    }
    .media-caption {
      padding: 18px;
    }
    .media-caption h4 {
      font-size: 1.05rem;
      margin-bottom: 6px;
      color: #0f172a;
    }
    .media-caption p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 需求匹配器 */
    .match-card {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-neon);
    }
    .pill-selector-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 24px;
    }
    .pill-opt {
      background: #f1f5f9;
      border: 1px solid #cbd5e1;
      padding: 10px 20px;
      border-radius: 999px;
      font-size: 0.88rem;
      font-weight: 600;
      color: #334155;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .pill-opt.active, .pill-opt:hover {
      background: #7c3aed;
      border-color: #7c3aed;
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
    }
    .match-result-box {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 20px;
    }

    /* FAQ 折叠板 */
    .faq-container {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 1rem;
      color: #0f172a;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      transition: background 0.2s;
    }
    .faq-question:hover {
      background: #faf5ff;
    }
    .faq-icon {
      font-size: 1.2rem;
      color: #7c3aed;
      transition: transform 0.25s ease;
    }
    .faq-answer {
      display: none;
      padding: 0 24px 20px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px dashed #f1f5f9;
      padding-top: 14px;
    }
    .faq-item.open .faq-answer {
      display: block;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-card:hover {
      border-color: rgba(6, 182, 212, 0.4);
      box-shadow: var(--shadow-hover);
    }
    .review-body {
      font-size: 0.92rem;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 16px;
    }
    .author-avatar-text {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #06b6d4, #8b5cf6);
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.9rem;
    }
    .author-name {
      font-weight: 700;
      font-size: 0.92rem;
      color: #0f172a;
    }
    .author-role {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* 最新文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 16px;
      margin-top: 24px;
    }
    .article-item-link {
      display: block;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 16px;
      font-size: 0.88rem;
      font-weight: 600;
      color: #1e293b;
      box-shadow: var(--shadow-sm);
    }
    .article-item-link:hover {
      border-color: #8b5cf6;
      color: #7c3aed;
      transform: translateY(-2px);
    }

    /* 表单与联络 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-neon);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1.5px solid #cbd5e1;
      border-radius: 8px;
      font-size: 0.95rem;
      color: #0f172a;
      background: #f8fafc;
      transition: all 0.2s;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: #7c3aed;
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
    }
    .btn-submit {
      width: 100%;
      background: linear-gradient(135deg, #7c3aed, #ec4899);
      color: #ffffff;
      border: none;
      padding: 14px;
      border-radius: 8px;
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
      transition: all 0.25s;
    }
    .btn-submit:hover {
      box-shadow: 0 8px 24px rgba(236, 72, 153, 0.4);
      transform: translateY(-1px);
    }

    .contact-info-panel {
      background: #f8fafc;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #e2e8f0;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .contact-line {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .contact-line strong {
      font-size: 0.85rem;
      color: var(--text-light);
    }
    .contact-line span {
      font-size: 1rem;
      font-weight: 700;
      color: #0f172a;
    }
    .qr-container {
      text-align: center;
      padding-top: 10px;
    }
    .qr-box {
      width: 140px;
      height: 140px;
      margin: 8px auto 0;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      overflow: hidden;
      background: #ffffff;
      padding: 4px;
    }
    .qr-box img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: block;
    }

    /* 加盟代理模块 */
    .partner-banner {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 44px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 32px;
      align-items: center;
      box-shadow: 0 16px 32px rgba(30, 27, 75, 0.2);
    }
    .partner-banner h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: #f8fafc;
    }
    .partner-banner p {
      color: #cbd5e1;
      font-size: 0.95rem;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .partner-perks {
      list-style: none;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      color: #e2e8f0;
      font-size: 0.88rem;
    }
    .partner-perks li::before {
      content: "✦ ";
      color: #06b6d4;
    }

    /* 友情链接与底部 */
    .footer-section {
      background: #ffffff;
      border-top: 1px solid #e2e8f0;
      padding: 50px 0 30px;
      color: #334155;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 36px;
    }
    .footer-col h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 16px;
    }
    .friendly-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .friendly-links-wrap a {
      font-size: 0.85rem;
      color: #475569;
      background: #f1f5f9;
      padding: 5px 12px;
      border-radius: 6px;
    }
    .friendly-links-wrap a:hover {
      background: #7c3aed;
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid #f1f5f9;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 浮动客服入口 */
    .float-service-dock {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .dock-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      box-shadow: 0 6px 16px rgba(0,0,0,0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #7c3aed;
      font-weight: bold;
      font-size: 1.1rem;
      cursor: pointer;
      transition: transform 0.2s;
    }
    .dock-btn:hover {
      transform: scale(1.1);
      border-color: #7c3aed;
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .grid-3, .reviews-grid, .board-metric-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-wrapper, .partner-banner, .footer-grid, .media-card-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 2.2rem;
      }
      .nav-links {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid #e2e8f0;
        padding: 16px 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
      }
    }
    @media (max-width: 640px) {
      .grid-3, .grid-2, .grid-4, .reviews-grid, .board-metric-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 1.8rem;
      }
      .review-highlight-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }
      .partner-perks {
        grid-template-columns: 1fr;
      }
    }