* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
      background: #fbfaff;
      color: #1e1a2f;
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 全局色彩与装饰 */
    :root {
      --primary: #ff3f81;
      --primary-light: #ff6fa5;
      --secondary: #6a4cff;
      --accent: #00d4c8;
      --yellow: #ffc107;
      --blue: #2d7eff;
      --bg-gradient: linear-gradient(135deg, #f9f0ff 0%, #fff5f7 100%);
      --card-bg: #ffffff;
      --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.04), 0 2px 6px rgba(0, 0, 0, 0.02);
      --shadow-hover: 0 20px 40px -12px rgba(255, 63, 129, 0.28), 0 8px 20px -8px rgba(106, 76, 255, 0.2);
      --radius: 24px;
      --radius-sm: 16px;
      --border-light: rgba(255, 255, 255, 0.6);
    }
    h1, h2, h3, h4 {
      font-weight: 700;
      line-height: 1.2;
      letter-spacing: -0.02em;
    }
    h2 {
      font-size: 2rem;
      margin-bottom: 12px;
    }
    .section-title-wrap {
      margin-bottom: 40px;
      text-align: center;
    }
    .section-sub {
      color: #5e5a70;
      font-size: 1.125rem;
      max-width: 700px;
      margin: 0 auto;
    }
    .badge {
      display: inline-block;
      background: #fff0f5;
      color: var(--primary);
      font-weight: 600;
      font-size: 0.875rem;
      padding: 6px 16px;
      border-radius: 100px;
      margin-bottom: 16px;
      border: 1px solid rgba(255, 63, 129, 0.2);
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
      border-radius: 100px;
      padding: 14px 32px;
      transition: all 0.25s ease;
      cursor: pointer;
      text-decoration: none;
      border: none;
      font-size: 1rem;
    }
    .btn-primary {
      background: var(--primary);
      color: #ffffff;
      box-shadow: 0 12px 24px -8px rgba(255, 63, 129, 0.45);
    }
    .btn-primary:hover {
      background: #e6356e;
      transform: translateY(-2px);
      box-shadow: 0 18px 30px -8px rgba(255, 63, 129, 0.55);
    }
    .btn-outline {
      background: transparent;
      color: var(--primary);
      border: 1.5px solid var(--primary);
    }
    .btn-outline:hover {
      background: rgba(255, 63, 129, 0.05);
      transform: translateY(-2px);
    }
    .btn-white {
      background: #ffffff;
      color: #1e1a2f;
      box-shadow: 0 8px 20px -8px rgba(0, 0, 0, 0.15);
    }
    .btn-white:hover {
      background: #f8f4ff;
      transform: translateY(-2px);
    }
    /* 导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(0, 0, 0, 0.03);
      padding: 12px 0;
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .brand-logo img {
      height: 36px;
      width: auto;
      display: block;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* 按要求设置gap为0 */
      flex-wrap: wrap;
    }
    .nav-links a {
      text-decoration: none;
      color: #2d2a3d;
      font-weight: 500;
      font-size: 0.9375rem;
      padding: 8px 12px;
      border-radius: 8px;
      transition: all 0.2s;
      white-space: nowrap;
    }
    .nav-links a:hover {
      color: var(--primary);
      background: #fff0f5;
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid #ddd;
      border-radius: 10px;
      padding: 10px 12px;
      cursor: pointer;
      font-size: 1.25rem;
      color: #1e1a2f;
    }
    .ai-page-home-link {
      font-weight: 600;
    }
    /* 首屏 Hero */
    .hero-section {
      padding: 60px 0 80px;
      background: linear-gradient(145deg, #fff7fb 0%, #f3f0ff 60%, #ffffff 100%);
      position: relative;
      overflow: hidden;
    }
    .hero-section::before {
      content: '';
      position: absolute;
      top: -40%;
      right: -10%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(255, 63, 129, 0.12) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-section::after {
      content: '';
      position: absolute;
      bottom: -20%;
      left: -5%;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(106, 76, 255, 0.1) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 0.9fr;
      gap: 48px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-content h1 {
      font-size: 3.5rem;
      font-weight: 800;
      letter-spacing: -0.03em;
      margin-bottom: 20px;
      background: linear-gradient(105deg, #1e1a2f 30%, #6a4cff 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-desc {
      font-size: 1.1875rem;
      color: #4a465e;
      max-width: 540px;
      margin-bottom: 32px;
      line-height: 1.65;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-stats {
      display: flex;
      gap: 32px;
      flex-wrap: wrap;
    }
    .stat-item {
      display: flex;
      flex-direction: column;
    }
    .stat-number {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.02em;
    }
    .stat-label {
      font-size: 0.875rem;
      color: #6b667e;
      font-weight: 500;
    }
    .hero-visual {
      background: rgba(255, 255, 255, 0.6);
      backdrop-filter: blur(8px);
      border-radius: 40px;
      padding: 24px;
      box-shadow: 0 30px 50px -20px rgba(106, 76, 255, 0.2);
      border: 1px solid rgba(255, 255, 255, 0.9);
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .hero-visual .model-tag {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
    }
    .model-tag span {
      background: #ffffff;
      padding: 8px 16px;
      border-radius: 100px;
      font-size: 0.8125rem;
      font-weight: 600;
      color: #2d2a3d;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
      border: 1px solid #f0ecf9;
    }
    .visual-bar {
      height: 12px;
      width: 100%;
      background: #f0ecf9;
      border-radius: 100px;
      overflow: hidden;
      margin-top: 8px;
    }
    .visual-bar-fill {
      width: 86%;
      height: 100%;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: 100px;
    }
    .visual-note {
      display: flex;
      justify-content: space-between;
      font-size: 0.8125rem;
      font-weight: 500;
      color: #5e5a70;
    }
    /* 数据指标卡片 */
    .metrics-section {
      padding: 40px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .metric-card {
      background: #ffffff;
      padding: 28px 24px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-sm);
      border: 1px solid #f4f0fb;
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .metric-icon {
      font-size: 2rem;
      margin-bottom: 16px;
    }
    .metric-value {
      font-size: 2rem;
      font-weight: 800;
      color: #1e1a2f;
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-label {
      color: #6b667e;
      font-size: 0.9375rem;
    }
    /* 服务能力卡片 */
    .services-section {
      padding: 80px 0;
    }
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: #ffffff;
      border-radius: 24px;
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      border: 1px solid #f1edf9;
      transition: all 0.3s ease;
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(255, 63, 129, 0.15);
    }
    .service-icon {
      font-size: 2.5rem;
      margin-bottom: 20px;
      display: inline-block;
      background: #fff0f5;
      padding: 10px 14px;
      border-radius: 16px;
    }
    .service-card h3 {
      font-size: 1.375rem;
      margin-bottom: 12px;
    }
    .service-card p {
      color: #5e5a70;
      font-size: 0.9375rem;
      line-height: 1.6;
    }
    /* 流程步骤 */
    .steps-section {
      padding: 60px 0;
      background: linear-gradient(135deg, #fbf5ff 0%, #ffffff 100%);
    }
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      counter-reset: step;
    }
    .step-item {
      background: #ffffff;
      border-radius: 20px;
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      position: relative;
      transition: transform 0.2s;
    }
    .step-item:hover {
      transform: translateY(-4px);
    }
    .step-item::before {
      counter-increment: step;
      content: counter(step);
      display: flex;
      align-items: center;
      justify-content: center;
      width: 48px;
      height: 48px;
      background: var(--primary);
      color: #fff;
      border-radius: 14px;
      font-weight: 700;
      font-size: 1.25rem;
      margin-bottom: 18px;
    }
    .step-item h4 {
      font-size: 1.125rem;
      margin-bottom: 8px;
    }
    .step-item p {
      color: #6b667e;
      font-size: 0.875rem;
    }
    /* 对比表格 */
    .compare-section {
      padding: 80px 0;
    }
    .compare-wrapper {
      overflow-x: auto;
      background: #ffffff;
      border-radius: 28px;
      box-shadow: var(--shadow-sm);
      border: 1px solid #f1edf9;
      padding: 8px;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.9375rem;
      min-width: 640px;
    }
    .compare-table th,
    .compare-table td {
      padding: 18px 24px;
      text-align: left;
      border-bottom: 1px solid #f4f0fb;
    }
    .compare-table th {
      font-weight: 700;
      color: #1e1a2f;
      background: #fdfaff;
      font-size: 1rem;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table .highlight {
      color: var(--primary);
      font-weight: 700;
    }
    .recommend-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #fff0f5;
      color: var(--primary);
      padding: 4px 12px;
      border-radius: 100px;
      font-size: 0.8125rem;
      font-weight: 600;
    }
    /* FAQ */
    .faq-section {
      padding: 80px 0;
    }
    .faq-grid {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #ffffff;
      border-radius: 18px;
      box-shadow: var(--shadow-sm);
      border: 1px solid #f1edf9;
      overflow: hidden;
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 24px;
      font-weight: 600;
      font-size: 1.0625rem;
      cursor: pointer;
      color: #1e1a2f;
      transition: background 0.2s;
    }
    .faq-question:hover {
      background: #fdfaff;
    }
    .faq-question .icon {
      font-size: 1.25rem;
      color: var(--primary);
      transition: transform 0.25s;
    }
    .faq-item.active .faq-question .icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.2s;
      padding: 0 24px;
      color: #5e5a70;
      font-size: 0.9375rem;
      line-height: 1.7;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding-bottom: 24px;
    }
    /* 客户评论 */
    .reviews-section {
      padding: 60px 0;
      background: linear-gradient(180deg, #ffffff 0%, #fbf7ff 100%);
    }
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      padding: 28px;
      border-radius: 24px;
      box-shadow: var(--shadow-sm);
      border: 1px solid #f1edf9;
      transition: transform 0.2s;
    }
    .review-card:hover {
      transform: translateY(-4px);
    }
    .review-stars {
      color: #ffb800;
      letter-spacing: 2px;
      margin-bottom: 16px;
    }
    .review-text {
      font-size: 0.9375rem;
      color: #3d3852;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .review-author {
      font-weight: 700;
      font-size: 0.9375rem;
      color: #1e1a2f;
    }
    .review-role {
      color: #8b869e;
      font-size: 0.8125rem;
      margin-top: 2px;
    }
    /* 案例展示 */
    .cases-section {
      padding: 80px 0;
    }
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      border-radius: 28px;
      overflow: hidden;
      background: #ffffff;
      box-shadow: var(--shadow-sm);
      border: 1px solid #f1edf9;
      transition: all 0.3s;
    }
    .case-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .case-media {
      aspect-ratio: 16 / 10;
      background: #f5f0ff;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }
    .case-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }
    .case-info {
      padding: 20px 24px 24px;
    }
    .case-info h4 {
      font-size: 1.125rem;
      margin-bottom: 6px;
    }
    .case-info p {
      color: #6b667e;
      font-size: 0.875rem;
    }
    /* 文章列表 */
    .articles-section {
      padding: 60px 0;
    }
    .article-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .article-item {
      background: #ffffff;
      border-radius: 20px;
      padding: 24px;
      box-shadow: var(--shadow-sm);
      border: 1px solid #f1edf9;
      display: flex;
      flex-direction: column;
      gap: 10px;
      transition: all 0.2s;
    }
    .article-item:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .article-item h4 {
      font-size: 1.125rem;
      color: #1e1a2f;
    }
    .article-item p {
      color: #6b667e;
      font-size: 0.875rem;
    }
    .article-link {
      font-size: 0.8125rem;
      color: var(--primary);
      font-weight: 600;
      text-decoration: none;
    }
    /* 表单 */
    .form-section {
      padding: 80px 0;
      background: #ffffff;
    }
    .form-card {
      max-width: 820px;
      margin: 0 auto;
      background: #fdfaff;
      border-radius: 32px;
      padding: 48px;
      box-shadow: 0 20px 50px -20px rgba(106, 76, 255, 0.15);
      border: 1px solid #f1edf9;
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full {
      grid-column: span 2;
    }
    .form-group label {
      font-size: 0.875rem;
      font-weight: 600;
      color: #2d2a3d;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      padding: 14px 18px;
      border-radius: 14px;
      border: 1.5px solid #e8e2f4;
      background: #ffffff;
      font-size: 0.9375rem;
      color: #1e1a2f;
      transition: border 0.2s, box-shadow 0.2s;
      font-family: inherit;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(255, 63, 129, 0.1);
    }
    .form-group textarea {
      resize: vertical;
      min-height: 110px;
    }
    .form-submit {
      margin-top: 12px;
      width: 100%;
    }
    /* 页脚 */
    .site-footer {
      background: #1e1a2f;
      color: #e6e3f0;
      padding: 48px 0 24px;
      margin-top: 20px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand img {
      height: 36px;
      width: auto;
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 0.875rem;
      color: #aba7c0;
      line-height: 1.7;
    }
    .footer-col h5 {
      font-weight: 700;
      font-size: 0.9375rem;
      color: #ffffff;
      margin-bottom: 16px;
    }
    .footer-col a {
      display: block;
      color: #aba7c0;
      text-decoration: none;
      font-size: 0.875rem;
      margin-bottom: 10px;
      transition: color 0.2s;
    }
    .footer-col a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.8125rem;
      color: #8b869e;
    }
    /* 浮动客服 */
    .float-service {
      position: fixed;
      right: 24px;
      bottom: 90px;
      z-index: 200;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .float-btn {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 10px 30px -8px rgba(0, 0, 0, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.25s;
      border: 1px solid #f0ecf9;
    }
    .float-btn:hover {
      transform: scale(1.08);
      box-shadow: 0 16px 36px -10px rgba(255, 63, 129, 0.3);
    }
    .float-btn img {
      width: 28px;
      height: 28px;
      object-fit: contain;
    }
    .back-to-top {
      position: fixed;
      right: 24px;
      bottom: 24px;
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 10px 24px -8px rgba(255, 63, 129, 0.5);
      transition: all 0.25s;
      z-index: 200;
      border: none;
      font-size: 1.25rem;
    }
    .back-to-top:hover {
      background: #e6356e;
      transform: translateY(-3px);
    }
    /* 动画 */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(24px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .fade-up {
      opacity: 0;
      animation: fadeUp 0.7s ease forwards;
    }
    .delay-1 { animation-delay: 0.1s; }
    .delay-2 { animation-delay: 0.2s; }
    .delay-3 { animation-delay: 0.3s; }
    /* 响应式 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .hero-content h1 {
        font-size: 2.8rem;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cases-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        padding: 16px 0;
        gap: 0;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-container {
        flex-wrap: wrap;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-cta {
        display: none;
      }
      .hero-content h1 {
        font-size: 2.2rem;
      }
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .service-grid {
        grid-template-columns: 1fr;
      }
      .steps-grid {
        grid-template-columns: 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .cases-grid {
        grid-template-columns: 1fr;
      }
      .article-list {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full {
        grid-column: span 1;
      }
      .form-card {
        padding: 28px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .compare-wrapper {
        border-radius: 20px;
      }
      .compare-table th,
      .compare-table td {
        padding: 14px 16px;
        font-size: 0.875rem;
      }
      .section-title-wrap h2 {
        font-size: 1.75rem;
      }
    }
    @media (max-width: 480px) {
      .hero-content h1 {
        font-size: 1.9rem;
      }
      .hero-actions .btn {
        width: 100%;
      }
    }