:root {
      --primary: #e60067;
      --primary-hover: #c40057;
      --primary-light: #fff0f5;
      --primary-gradient: linear-gradient(135deg, #e60067 0%, #ff4d8d 100%);
      --accent: #ff007f;
      --text-main: #1f2937;
      --text-muted: #4b5563;
      --text-light: #6b7280;
      --bg-main: #ffffff;
      --bg-alt: #fff9fb;
      --bg-card: #ffffff;
      --border-color: #fce7f0;
      --shadow-sm: 0 2px 8px rgba(230, 0, 103, 0.06);
      --shadow-md: 0 8px 24px rgba(230, 0, 103, 0.08);
      --shadow-lg: 0 16px 36px rgba(230, 0, 103, 0.12);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --transition: all 0.28s ease;
    }

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

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

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

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .logo-container {
      display: flex;
      align-items: center;
      text-decoration: none;
      gap: 10px;
    }

    .logo-container img {
      height: 40px;
      width: auto;
      display: block;
    }

    .brand-text {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

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

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

    .nav-links li a {
      display: block;
      padding: 8px 12px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      text-decoration: none;
      transition: var(--transition);
      border-radius: var(--radius-sm);
    }

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

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: 15px;
    }

    .btn-nav-primary {
      padding: 8px 18px;
      font-size: 0.9rem;
      font-weight: 600;
      color: #ffffff;
      background: var(--primary-gradient);
      border-radius: 50px;
      text-decoration: none;
      box-shadow: 0 4px 12px rgba(230, 0, 103, 0.25);
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-nav-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(230, 0, 103, 0.35);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      color: var(--text-main);
    }

    /* 首屏 Hero (无图片) */
    .hero-section {
      padding: 80px 0 60px;
      background: linear-gradient(180deg, #ffffff 0%, var(--bg-alt) 100%);
      position: relative;
      overflow: hidden;
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      background: var(--primary-light);
      border: 1px solid rgba(230, 0, 103, 0.2);
      border-radius: 50px;
      color: var(--primary);
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .hero-title {
      font-size: 2.5rem;
      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: 1.125rem;
      color: var(--text-muted);
      max-width: 800px;
      margin: 0 auto 36px;
      line-height: 1.8;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-official {
      padding: 14px 36px;
      font-size: 1.1rem;
      font-weight: 700;
      color: #ffffff;
      background: var(--primary-gradient);
      border-radius: 50px;
      text-decoration: none;
      box-shadow: 0 8px 24px rgba(230, 0, 103, 0.35);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-official:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 28px rgba(230, 0, 103, 0.45);
    }

    .btn-hero-secondary {
      padding: 14px 32px;
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--primary);
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: 50px;
      text-decoration: none;
      transition: var(--transition);
    }

    .btn-hero-secondary:hover {
      background: var(--primary-light);
      border-color: var(--primary);
    }

    .model-tags-wrapper {
      max-width: 1000px;
      margin: 0 auto;
      padding-top: 24px;
      border-top: 1px dashed rgba(230, 0, 103, 0.15);
    }

    .model-tags-label {
      font-size: 0.85rem;
      color: var(--text-light);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .model-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }

    .model-tag {
      font-size: 0.8rem;
      padding: 4px 10px;
      background: #ffffff;
      border: 1px solid #f0d5e2;
      border-radius: 6px;
      color: var(--text-muted);
      transition: var(--transition);
    }

    .model-tag:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    /* 通用区块排版 */
    .section-padding {
      padding: 70px 0;
    }

    .section-title-wrap {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-subtitle {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 8px;
      display: block;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 640px;
      margin: 0 auto;
    }

    /* 数据指标区 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .stat-card {
      background: #ffffff;
      padding: 28px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

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

    .stat-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .stat-label {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .stat-sub {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* 服务能力卡片网格 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .service-card {
      background: #ffffff;
      padding: 28px;
      border-radius: var(--radius-md);
      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(-5px);
      box-shadow: var(--shadow-lg);
      border-color: var(--primary);
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      margin-bottom: 18px;
      font-size: 1.25rem;
    }

    .service-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .service-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    .service-badge {
      display: inline-block;
      font-size: 0.75rem;
      color: var(--primary);
      background: var(--primary-light);
      padding: 2px 8px;
      border-radius: 4px;
      margin-top: 14px;
      align-self: flex-start;
      font-weight: 600;
    }

    /* 案例展示与图文区块 */
    .media-card-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-bottom: 24px;
    }

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

    .media-card:hover {
      box-shadow: var(--shadow-md);
    }

    .media-img-wrap {
      width: 100%;
      aspect-ratio: 16/9;
      background: #fdf2f6;
      overflow: hidden;
    }

    .media-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .media-card:hover .media-img-wrap img {
      transform: scale(1.03);
    }

    .media-content {
      padding: 20px;
    }

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

    .media-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

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

    .banner-item img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 对比评测表格 */
    .compare-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow: hidden;
      padding: 30px;
    }

    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: var(--primary-light);
      border-radius: var(--radius-md);
      padding: 20px 28px;
      margin-bottom: 28px;
    }

    .rating-left {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .rating-score {
      font-size: 2.4rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
    }

    .rating-text h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

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

    .stars {
      color: #ff9900;
      font-size: 1.25rem;
      letter-spacing: 2px;
    }

    .table-container {
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f3e5ec;
      font-size: 0.95rem;
    }

    .compare-table th {
      background: #fff5f8;
      font-weight: 700;
      color: var(--text-main);
    }

    .compare-table .highlight-col {
      background: rgba(230, 0, 103, 0.03);
      font-weight: 600;
      color: var(--primary);
    }

    .compare-table .check-yes {
      color: var(--primary);
      font-weight: bold;
    }

    .compare-table .check-no {
      color: #9ca3af;
    }

    /* 流程步骤 */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

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

    .process-step-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      font-weight: 700;
      font-size: 0.9rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
    }

    .process-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .process-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 用户评论 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-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;
    }

    .review-body {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #fceef4;
      padding-top: 14px;
    }

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

    .author-info h5 {
      font-size: 0.95rem;
      color: var(--text-main);
      font-weight: 600;
    }

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

    /* FAQ 手风琴 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .faq-question {
      padding: 18px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 600;
      color: var(--text-main);
      font-size: 1rem;
      user-select: none;
    }

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

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

    .faq-answer {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease;
      background: #fffdfd;
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      padding: 0 24px 20px;
      max-height: 300px;
    }

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

    /* 表单与需求匹配 */
    .form-section-inner {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 40px;
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
    }

    .form-info h3 {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .form-info p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .contact-item-box {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
      font-size: 0.9rem;
      color: var(--text-main);
    }

    .contact-item-box strong {
      color: var(--primary);
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #d1d5db;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(230, 0, 103, 0.15);
    }

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

    .btn-submit {
      width: 100%;
      padding: 14px;
      background: var(--primary-gradient);
      color: #ffffff;
      border: none;
      border-radius: var(--radius-sm);
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      transition: var(--transition);
      box-shadow: 0 4px 14px rgba(230, 0, 103, 0.3);
    }

    .btn-submit:hover {
      opacity: 0.95;
      transform: translateY(-2px);
    }

    /* 资讯列表 */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .article-item-card {
      background: #ffffff;
      padding: 18px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
      text-decoration: none;
      color: var(--text-main);
      transition: var(--transition);
    }

    .article-item-card:hover {
      border-color: var(--primary);
      transform: translateX(4px);
    }

    .article-title-text {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .article-tag {
      font-size: 0.8rem;
      color: var(--primary);
      background: var(--primary-light);
      padding: 2px 8px;
      border-radius: 4px;
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 50px 0 24px;
      color: var(--text-muted);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

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

    .footer-links li {
      margin-bottom: 8px;
    }

    .footer-links a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.875rem;
      transition: var(--transition);
    }

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

    .qr-box {
      width: 110px;
      height: 110px;
      border: 1px solid var(--border-color);
      padding: 4px;
      border-radius: var(--radius-sm);
      background: #ffffff;
      margin-top: 10px;
    }

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

    .footer-bottom {
      border-top: 1px solid #fceef4;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: var(--text-light);
    }

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .friend-links a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.85rem;
      transition: var(--transition);
    }

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

    /* 浮动组件与返回顶部 */
    .floating-kefu {
      position: fixed;
      right: 20px;
      bottom: 80px;
      z-index: 990;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 12px;
      box-shadow: var(--shadow-lg);
      text-align: center;
      width: 120px;
      display: none;
    }

    @media (min-width: 768px) {
      .floating-kefu {
        display: block;
      }
    }

    .floating-kefu img {
      width: 90px;
      height: 90px;
      display: block;
      margin: 0 auto 6px;
      border-radius: 4px;
    }

    .floating-kefu span {
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--primary);
      display: block;
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .stats-grid, .grid-4, .banner-gallery, .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .review-grid, .footer-grid {
        grid-template-columns: 1fr;
      }
      .form-section-inner {
        grid-template-columns: 1fr;
      }
      .media-card-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 2rem;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .article-links-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 576px) {
      .stats-grid, .process-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 1.6rem;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
    }