:root {
      --primary: #e6005c;
      --primary-hover: #cc0052;
      --primary-light: #fff0f5;
      --primary-gradient: linear-gradient(135deg, #ff1493 0%, #e6005c 50%, #c7004c 100%);
      --accent-pink: #ff69b4;
      --text-main: #1f1b24;
      --text-muted: #5c5565;
      --bg-page: #fdfafb;
      --bg-surface: #ffffff;
      --border-color: #f7d2df;
      --shadow-sm: 0 4px 12px rgba(230, 0, 92, 0.05);
      --shadow-md: 0 8px 24px rgba(230, 0, 92, 0.08);
      --shadow-lg: 0 16px 36px rgba(230, 0, 92, 0.12);
      --radius: 12px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      font-size: 16px;
      overflow-x: hidden;
    }

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

    img {
      display: block;
      max-width: 100%;
      height: auto;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      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, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-wrap img {
      max-height: 42px;
      width: auto;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      padding: 8px 14px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      border-radius: 6px;
    }
    .nav-links li a:hover {
      color: var(--primary);
      background-color: var(--primary-light);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.3s ease;
      border: 1px solid transparent;
    }
    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(230, 0, 92, 0.3);
    }
    .btn-primary:hover {
      opacity: 0.95;
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(230, 0, 92, 0.4);
    }
    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background: #ffffff;
    }
    .btn-outline:hover {
      background: var(--primary-light);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--primary);
      margin: 5px 0;
      transition: 0.3s;
    }

    /* 纯色几何 Hero 首屏 (无图片) */
    .hero-section {
      background: linear-gradient(180deg, #fff5f8 0%, #ffffff 100%);
      padding: 90px 0 70px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-wrap {
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
      position: relative;
      z-index: 2;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 20px;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }
    .hero-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
    }
    .hero-title {
      font-size: 42px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-title span {
      color: var(--primary);
    }
    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      padding-top: 30px;
      border-top: 1px solid #fce4ec;
    }
    .stat-card {
      background: #ffffff;
      padding: 20px 16px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .stat-number {
      font-size: 30px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 6px;
    }
    .stat-label {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 公用章节 */
    .section-py {
      padding: 80px 0;
      border-bottom: 1px solid #f9e2eb;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }
    .section-tag {
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 8px;
      display: block;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
    }
    .section-subtitle {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 平台介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .intro-content p {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.8;
    }
    .intro-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }
    .intro-feat-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 16px;
      border-radius: 10px;
      box-shadow: var(--shadow-sm);
    }
    .intro-feat-item h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .intro-feat-item p {
      font-size: 13px;
      color: var(--text-muted);
      margin: 0;
    }
    .model-tags-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 28px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
    }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 16px;
    }
    .tag-pill {
      background: var(--primary-light);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 16px;
      border: 1px solid #fcd2e1;
    }

    /* 服务与能力卡片 */
    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent-pink);
    }
    .card-icon-badge {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 18px;
      border: 1px solid #fcc6d9;
    }
    .feature-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .feature-tags {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
    }
    .feature-tags span {
      font-size: 11px;
      color: var(--primary);
      background: #fff5f8;
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 流程步骤 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      text-align: center;
      position: relative;
    }
    .step-badge {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      font-weight: 700;
      font-size: 15px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
    }
    .step-item h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-item p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 案例中心 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: 0.3s;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .case-img-box {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #fce4ec;
      overflow: hidden;
    }
    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-img-box.square {
      aspect-ratio: 1 / 1;
    }
    .case-info {
      padding: 20px;
    }
    .case-info h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .case-info p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 对比评测表格 */
    .eval-highlight-box {
      background: #ffffff;
      border: 2px solid var(--primary);
      border-radius: var(--radius);
      padding: 30px;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }
    .eval-score-wrap {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .eval-big-score {
      font-size: 48px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }
    .eval-stars {
      color: #ff9900;
      font-size: 20px;
      letter-spacing: 2px;
    }
    .table-container {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .eval-table th, .eval-table td {
      padding: 18px 20px;
      border-bottom: 1px solid #f8dce6;
      font-size: 14px;
    }
    .eval-table th {
      background: #fff5f8;
      font-weight: 700;
      color: var(--text-main);
    }
    .eval-table tr:last-child td {
      border-bottom: none;
    }
    .text-primary {
      color: var(--primary);
      font-weight: 700;
    }

    /* Token比价矩阵 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .price-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px 24px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .price-card.popular {
      border: 2px solid var(--primary);
      transform: scale(1.02);
      box-shadow: var(--shadow-md);
    }
    .price-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary-gradient);
      color: #ffffff;
      font-size: 12px;
      padding: 4px 14px;
      border-radius: 12px;
      font-weight: 600;
    }
    .price-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .price-amount {
      font-size: 34px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 16px;
    }
    .price-amount span {
      font-size: 14px;
      font-weight: 400;
      color: var(--text-muted);
    }
    .price-list {
      list-style: none;
      margin-bottom: 24px;
      text-align: left;
    }
    .price-list li {
      font-size: 14px;
      color: var(--text-muted);
      padding: 8px 0;
      border-bottom: 1px dashed #fce4ec;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .price-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: bold;
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .review-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 16px;
      border: 1px solid #fcc6d9;
    }
    .review-meta h4 {
      font-size: 15px;
      font-weight: 700;
    }
    .review-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }
    .review-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #ffffff;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-question::after {
      content: "+";
      font-size: 20px;
      color: var(--primary);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-question::after {
      content: "−";
    }
    .faq-answer {
      display: none;
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px dashed #fce4ec;
      padding-top: 14px;
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* 需求表单与联系 */
    .form-section-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }
    .form-box h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 14px;
      border: 1px solid #e2ccd5;
      border-radius: 8px;
      background: #fdfafb;
      outline: none;
      transition: 0.3s;
    }
    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(230, 0, 92, 0.1);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }
    .contact-card-box {
      display: flex;
      flex-direction: column;
      justify-content: center;
      background: #fff5f8;
      border: 1px solid #fcd2e1;
      padding: 30px;
      border-radius: 10px;
    }
    .contact-card-box h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--primary);
    }
    .contact-item {
      font-size: 14px;
      margin-bottom: 12px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .qr-box {
      margin-top: 16px;
      display: inline-block;
      text-align: center;
    }
    .qr-box img {
      width: 130px;
      height: 130px;
      border-radius: 8px;
      border: 1px solid #fcc6d9;
      margin-bottom: 6px;
    }

    /* 行业资讯 & 友情链接 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }
    .article-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 20px;
      transition: 0.2s;
    }
    .article-item:hover {
      border-color: var(--primary);
      transform: translateY(-2px);
    }
    .article-item h4 {
      font-size: 15px;
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .article-item a {
      color: var(--text-main);
    }
    .article-item a:hover {
      color: var(--primary);
    }
    .article-date {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 40px 0 30px;
      color: var(--text-muted);
      font-size: 14px;
    }
    .footer-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 24px;
      border-bottom: 1px solid #fce4ec;
      margin-bottom: 20px;
    }
    .footer-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }
    .footer-links-wrap span {
      font-weight: 700;
      color: var(--text-main);
    }
    .footer-links-wrap a {
      color: var(--text-muted);
    }
    .footer-links-wrap a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
    }

    /* 悬浮客服 */
    .floating-kefu {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      font-size: 13px;
      font-weight: 700;
      border: none;
      transition: 0.3s;
    }
    .float-btn:hover {
      transform: scale(1.08);
    }

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .cards-grid-3, .steps-grid, .case-grid, .pricing-grid, .reviews-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid, .form-section-wrap {
        grid-template-columns: 1fr;
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .cards-grid-3, .steps-grid, .case-grid, .pricing-grid, .reviews-grid, .articles-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-desc {
        font-size: 15px;
      }
      .hero-stats-grid {
        grid-template-columns: 1fr;
      }
      .eval-highlight-box {
        flex-direction: column;
        text-align: center;
      }
      .eval-score-wrap {
        flex-direction: column;
      }
    }