:root {
      --primary: #4f46e5;
      --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
      --warm-gradient: linear-gradient(135deg, #ffedd5 0%, #fef3c7 50%, #e0e7ff 100%);
      --accent-cyan: #06b6d4;
      --accent-rose: #f43f5e;
      --accent-amber: #f59e0b;
      --accent-violet: #8b5cf6;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --bg-card-subtle: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-focus: #818cf8;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 10px 25px -5px rgba(99, 102, 241, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-max: 1200px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 10%, rgba(99, 102, 241, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 20%, rgba(236, 72, 153, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(6, 182, 212, 0.04) 0%, transparent 50%);
      background-attachment: fixed;
    }

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

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

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

    .brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
    }

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

    .nav-links li a, .nav-links .ai-page-home-link {
      display: inline-block;
      padding: 8px 14px;
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.92rem;
      font-weight: 500;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      white-space: nowrap;
    }

    .nav-links li a:hover, .nav-links .ai-page-home-link:hover {
      color: var(--primary);
      background: rgba(99, 102, 241, 0.08);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      border-radius: var(--radius-full);
      font-size: 0.92rem;
      font-weight: 600;
      text-decoration: none;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
    }

    .btn-primary:hover {
      opacity: 0.95;
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
    }

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

    .btn-outline:hover {
      background: rgba(99, 102, 241, 0.06);
      transform: translateY(-1px);
    }

    .btn-official {
      background: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
    }

    .btn-official:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(14, 165, 233, 0.45);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    /* 首屏 Hero - 严格禁止图片 */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, rgba(245, 243, 255, 0.6) 0%, rgba(248, 250, 252, 1) 100%);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    }

    .hero-decor-orb {
      position: absolute;
      border-radius: 50%;
      filter: blur(60px);
      z-index: 0;
      pointer-events: none;
    }

    .orb-1 {
      width: 320px;
      height: 320px;
      background: rgba(168, 85, 247, 0.15);
      top: -60px;
      left: 10%;
    }

    .orb-2 {
      width: 280px;
      height: 280px;
      background: rgba(6, 182, 212, 0.15);
      bottom: 20px;
      right: 12%;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      background: #ffffff;
      border: 1px solid #e0e7ff;
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 600;
      box-shadow: var(--shadow-sm);
      margin-bottom: 20px;
    }

    .hero-title {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 1.12rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 30px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 45px;
    }

    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .metric-card {
      background: #ffffff;
      padding: 20px 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      text-align: center;
    }

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

    .metric-num {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
      font-family: inherit;
    }

    .metric-label {
      font-size: 0.86rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 区域通用样式 */
    .section-block {
      padding: 70px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 45px;
    }

    .section-badge {
      display: inline-block;
      padding: 4px 12px;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      border-radius: var(--radius-full);
      background: rgba(99, 102, 241, 0.1);
      color: var(--primary);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

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

    /* 模型矩阵徽章墙 */
    .model-tags-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      padding: 24px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .model-tag {
      display: inline-flex;
      align-items: center;
      padding: 7px 14px;
      background: var(--bg-card-subtle);
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      transition: var(--transition);
    }

    .model-tag:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 4px 10px rgba(99, 102, 241, 0.25);
    }

    /* AIGC核心服务与创作矩阵 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      padding: 28px 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(99, 102, 241, 0.4);
    }

    .service-card-top {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .service-icon-box {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      color: #ffffff;
      flex-shrink: 0;
    }

    .icon-indigo { background: linear-gradient(135deg, #6366f1, #4f46e5); }
    .icon-pink { background: linear-gradient(135deg, #ec4899, #db2777); }
    .icon-cyan { background: linear-gradient(135deg, #06b6d4, #0891b2); }
    .icon-amber { background: linear-gradient(135deg, #f59e0b, #d97706); }
    .icon-purple { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
    .icon-emerald { background: linear-gradient(135deg, #10b981, #059669); }

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

    .service-card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .service-subtag {
      font-size: 0.78rem;
      padding: 3px 8px;
      background: #f1f5f9;
      color: var(--text-light);
      border-radius: var(--radius-sm);
    }

    /* 一站式制作与工作流 */
    .workflow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .workflow-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      position: relative;
      transition: var(--transition);
    }

    .workflow-card:hover {
      border-color: var(--border-focus);
      box-shadow: var(--shadow-md);
    }

    .workflow-step {
      font-size: 1.5rem;
      font-weight: 900;
      color: rgba(99, 102, 241, 0.2);
      position: absolute;
      top: 16px;
      right: 18px;
    }

    .workflow-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .workflow-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 行业方案与图文展示 */
    .solution-showcase-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      align-items: center;
      margin-bottom: 40px;
    }

    .solution-text-block h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 14px;
      color: var(--text-main);
    }

    .solution-text-block p {
      font-size: 0.96rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .solution-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 24px;
    }

    .solution-list li {
      font-size: 0.9rem;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 500;
    }

    .solution-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
    }

    .img-wrapper {
      background: #ffffff;
      padding: 10px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .img-wrapper img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-md);
      display: block;
      object-fit: contain;
    }

    .material-gallery {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 20px;
      align-items: center;
      margin-top: 24px;
    }

    /* 案例横幅展区 */
    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

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

    .banner-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }

    .banner-card img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: contain;
    }

    /* 对比评测表格 */
    .review-highlight-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 30px;
      box-shadow: var(--shadow-md);
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      background-image: linear-gradient(135deg, #ffffff 0%, #faf5ff 100%);
    }

    .review-score-area {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-circle {
      width: 80px;
      height: 80px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    }

    .score-val { font-size: 1.5rem; line-height: 1; }
    .score-max { font-size: 0.75rem; opacity: 0.9; }

    .review-text-info h4 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .review-stars {
      color: #f59e0b;
      font-size: 1.1rem;
      margin-bottom: 4px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }

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

    .custom-table tr:last-child td {
      border-bottom: none;
    }

    .custom-table .col-highlight {
      background: rgba(99, 102, 241, 0.04);
      font-weight: 600;
      color: var(--primary);
    }

    /* 需求匹配与表单 */
    .form-wrapper-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 36px;
      box-shadow: var(--shadow-md);
      max-width: 840px;
      margin: 0 auto;
    }

    .match-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-group-full {
      grid-column: 1 / -1;
    }

    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      font-size: 0.92rem;
      color: var(--text-main);
      background: #ffffff;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    }

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

    /* 用户评论卡片 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .testimonial-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

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

    .testimonial-comment {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      font-style: italic;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .author-avatar-text {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--warm-gradient);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 0.9rem;
    }

    .author-meta h4 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-meta p {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* FAQ 手风琴 */
    .faq-list {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

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

    .faq-question {
      padding: 18px 22px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: var(--transition);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #fafafa;
    }

    .faq-answer-inner {
      padding: 0 22px 18px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 资讯与文章列表 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-card {
      background: #ffffff;
      padding: 22px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .article-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }

    .article-card a {
      text-decoration: none;
      color: var(--text-main);
      font-weight: 700;
      font-size: 1rem;
      display: block;
      margin-bottom: 8px;
      transition: var(--transition);
    }

    .article-card a:hover {
      color: var(--primary);
    }

    .article-card p {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 加盟代理与联系区 */
    .contact-grid-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }

    .contact-info-card {
      background: #ffffff;
      padding: 30px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 20px;
    }

    .contact-item:last-child {
      margin-bottom: 0;
    }

    .contact-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: rgba(99, 102, 241, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
    }

    .qr-preview-box {
      text-align: center;
      padding: 20px;
      background: #f8fafc;
      border-radius: var(--radius-md);
      border: 1px dashed var(--border-color);
    }

    .qr-preview-box img {
      width: 140px;
      height: 140px;
      object-fit: contain;
      border-radius: var(--radius-sm);
      margin-bottom: 8px;
      background: #ffffff;
    }

    /* 友情链接与底部 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 50px 0 25px;
      margin-top: 50px;
    }

    .footer-links-box {
      margin-bottom: 30px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
    }

    .footer-links-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .footer-links-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 14px 20px;
    }

    .footer-links-flex a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.88rem;
      transition: var(--transition);
    }

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

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.85rem;
      color: var(--text-light);
    }

    /* 悬浮客服挂件 */
    .floating-support {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary);
      text-decoration: none;
      font-size: 1.2rem;
      transition: var(--transition);
      position: relative;
    }

    .floating-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-2px);
    }

    .qr-tooltip {
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      display: none;
      width: 150px;
      text-align: center;
    }

    .qr-tooltip img {
      width: 100%;
      height: auto;
      display: block;
    }

    .floating-btn:hover .qr-tooltip {
      display: block;
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .services-grid, .workflow-grid, .banner-gallery, .articles-grid, .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-menu {
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        display: none;
        flex-direction: column;
        padding: 16px 20px;
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-links {
        flex-direction: column;
        width: 100%;
        align-items: flex-start;
      }
      .nav-links li, .nav-links .ai-page-home-link {
        width: 100%;
      }
      .nav-links li a, .nav-links .ai-page-home-link {
        width: 100%;
        padding: 10px 0;
        border-bottom: 1px solid #f1f5f9;
      }
      .nav-actions {
        width: 100%;
        margin-top: 14px;
        flex-direction: column;
      }
      .nav-actions .btn {
        width: 100%;
      }
      .hero-title {
        font-size: 1.8rem;
      }
      .services-grid, .workflow-grid, .solution-showcase-grid, .material-gallery, .banner-gallery, .testimonials-grid, .articles-grid, .contact-grid-block, .match-form, .hero-metrics-grid {
        grid-template-columns: 1fr;
      }
      .review-highlight-card {
        flex-direction: column;
        text-align: center;
      }
      .review-score-area {
        flex-direction: column;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }