* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: #1a2b3c;
      background: linear-gradient(145deg, #f0f9ff 0%, #e6f7f5 100%);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 导航栏 */
    .navbar {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 180, 180, 0.15);
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 0;
      flex-wrap: wrap;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
    }
    .brand img {
      height: 36px;
      width: auto;
    }
    .brand span {
      font-weight: 700;
      font-size: 1.2rem;
      color: #0b5e5e;
      letter-spacing: 0.5px;
      white-space: nowrap;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
      flex-wrap: wrap;
    }
    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.92rem;
      color: #1a4a4a;
      text-decoration: none;
      border-radius: 30px;
      transition: background 0.2s, color 0.2s;
      font-weight: 500;
      white-space: nowrap;
    }
    .nav-links li a:hover {
      background: #d0f0ec;
      color: #046666;
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .btn-outline {
      border: 1.5px solid #0b8f8f;
      background: transparent;
      color: #0b6b6b;
      padding: 7px 18px;
      border-radius: 40px;
      font-weight: 600;
      font-size: 0.9rem;
      text-decoration: none;
      transition: all 0.2s;
      cursor: pointer;
      white-space: nowrap;
    }
    .btn-outline:hover {
      background: #0b8f8f;
      color: #fff;
    }
    .btn-primary {
      background: linear-gradient(135deg, #0b8f8f, #0fb3a8);
      border: none;
      color: #fff;
      padding: 8px 22px;
      border-radius: 40px;
      font-weight: 600;
      font-size: 0.9rem;
      text-decoration: none;
      transition: all 0.25s;
      display: inline-block;
      box-shadow: 0 4px 12px rgba(0, 150, 150, 0.25);
      cursor: pointer;
      white-space: nowrap;
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0, 150, 150, 0.35);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.8rem;
      color: #0b5e5e;
      cursor: pointer;
    }
    /* Hero 首屏 - 无图片 */
    .hero {
      padding: 70px 0 60px;
      position: relative;
      overflow: hidden;
      background: radial-gradient(ellipse at 30% 40%, rgba(0, 210, 200, 0.08), transparent 60%),
                  radial-gradient(ellipse at 80% 70%, rgba(0, 160, 180, 0.1), transparent 70%);
    }
    .hero-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 40px;
      align-items: center;
    }
    .hero-text {
      flex: 1 1 400px;
      max-width: 640px;
    }
    .hero-badge {
      display: inline-block;
      background: rgba(0, 180, 180, 0.12);
      border: 1px solid rgba(0, 150, 150, 0.3);
      padding: 6px 16px;
      border-radius: 40px;
      font-size: 0.82rem;
      font-weight: 600;
      color: #0b6b6b;
      margin-bottom: 22px;
      letter-spacing: 0.3px;
      animation: fadeInUp 0.6s ease;
    }
    .hero h1 {
      font-size: clamp(2rem, 5vw, 3.2rem);
      font-weight: 800;
      line-height: 1.2;
      color: #073b3b;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
      animation: fadeInUp 0.7s ease 0.05s both;
    }
    .hero h1 span {
      background: linear-gradient(135deg, #0b8f8f, #12b3a7);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .hero-desc {
      font-size: 1.08rem;
      color: #2d5656;
      margin-bottom: 32px;
      max-width: 560px;
      animation: fadeInUp 0.7s ease 0.1s both;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      animation: fadeInUp 0.7s ease 0.15s both;
    }
    .hero-actions .btn-primary {
      padding: 12px 32px;
      font-size: 1rem;
    }
    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      gap: 30px;
      margin-top: 42px;
      animation: fadeInUp 0.7s ease 0.2s both;
    }
    .hero-stat-item {
      display: flex;
      flex-direction: column;
    }
    .hero-stat-num {
      font-size: 1.9rem;
      font-weight: 800;
      color: #0b6b6b;
      line-height: 1.2;
    }
    .hero-stat-label {
      font-size: 0.85rem;
      color: #3e6b6b;
      font-weight: 500;
    }
    .hero-visual {
      flex: 0 1 380px;
      min-height: 280px;
      position: relative;
      animation: fadeInUp 0.8s ease 0.15s both;
    }
    .visual-blob {
      position: absolute;
      width: 100%;
      height: 100%;
      background: radial-gradient(circle at 30% 40%, rgba(0, 200, 200, 0.25), transparent 65%),
                  radial-gradient(circle at 70% 70%, rgba(0, 180, 220, 0.2), transparent 60%);
      border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
      animation: morph 12s ease-in-out infinite;
    }
    .visual-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      height: 100%;
    }
    .visual-card {
      background: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(6px);
      border: 1px solid rgba(0, 190, 190, 0.3);
      border-radius: 20px;
      padding: 16px 14px;
      box-shadow: 0 12px 30px -10px rgba(0, 140, 140, 0.15);
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .visual-card .v-icon {
      font-size: 1.6rem;
      margin-bottom: 6px;
    }
    .visual-card .v-label {
      font-size: 0.8rem;
      font-weight: 600;
      color: #0b5e5e;
    }
    .visual-card .v-sub {
      font-size: 0.68rem;
      color: #3e7a7a;
    }
    /* 通用 Section 样式 */
    section {
      padding: 70px 0;
    }
    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-tag {
      display: inline-block;
      background: #def3f0;
      color: #0b6b6b;
      padding: 5px 16px;
      border-radius: 40px;
      font-size: 0.78rem;
      font-weight: 700;
      letter-spacing: 0.8px;
      text-transform: uppercase;
      margin-bottom: 14px;
    }
    .section-title {
      font-size: clamp(1.8rem, 3.5vw, 2.5rem);
      font-weight: 800;
      color: #073b3b;
      margin-bottom: 14px;
      letter-spacing: -0.4px;
    }
    .section-sub {
      font-size: 1rem;
      color: #3e6b6b;
      max-width: 640px;
      margin: 0 auto;
    }
    /* 卡片通用 */
    .card {
      background: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(4px);
      border: 1px solid rgba(0, 180, 180, 0.2);
      border-radius: 24px;
      padding: 28px 24px;
      box-shadow: 0 8px 24px -8px rgba(0, 120, 120, 0.1);
      transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 40px -12px rgba(0, 150, 150, 0.25);
      border-color: rgba(0, 190, 190, 0.5);
    }
    .card-icon {
      font-size: 2rem;
      margin-bottom: 12px;
    }
    .card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #0b4a4a;
      margin-bottom: 8px;
    }
    .card p {
      font-size: 0.9rem;
      color: #3e6b6b;
    }
    /* 数据指标卡片 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      gap: 24px;
    }
    .metric-card {
      background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(230,250,248,0.9));
      border: 1px solid rgba(0, 180, 180, 0.2);
      border-radius: 20px;
      padding: 28px 18px;
      text-align: center;
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .metric-card:hover {
      transform: scale(1.02);
      box-shadow: 0 12px 28px -8px rgba(0, 160, 160, 0.2);
    }
    .metric-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: #0b7a7a;
      line-height: 1.2;
    }
    .metric-label {
      font-size: 0.88rem;
      color: #2d5a5a;
      font-weight: 500;
      margin-top: 6px;
    }
    /* 服务能力卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 24px;
    }
    /* 流程步骤 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 24px;
      counter-reset: step;
    }
    .step-item {
      background: rgba(255, 255, 255, 0.7);
      border-radius: 20px;
      padding: 28px 22px;
      border-left: 4px solid #0fb3a8;
      transition: all 0.2s;
    }
    .step-item:hover {
      background: #fff;
      box-shadow: 0 12px 28px -12px rgba(0, 150, 150, 0.25);
    }
    .step-num {
      display: inline-block;
      background: linear-gradient(135deg, #0b8f8f, #12b3a7);
      color: #fff;
      width: 40px;
      height: 40px;
      border-radius: 12px;
      text-align: center;
      line-height: 40px;
      font-weight: 700;
      font-size: 1.1rem;
      margin-bottom: 16px;
    }
    .step-item h3 {
      font-size: 1.1rem;
      font-weight: 700;
      color: #0b4a4a;
      margin-bottom: 8px;
    }
    .step-item p {
      font-size: 0.88rem;
      color: #3e6b6b;
    }
    /* 对比表格 */
    .compare-table-wrap {
      overflow-x: auto;
      border-radius: 24px;
      background: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(4px);
      border: 1px solid rgba(0, 180, 180, 0.2);
      padding: 4px;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 680px;
    }
    .compare-table th,
    .compare-table td {
      padding: 18px 20px;
      text-align: left;
      border-bottom: 1px solid rgba(0, 180, 180, 0.15);
      font-size: 0.92rem;
    }
    .compare-table th {
      background: rgba(0, 180, 180, 0.08);
      font-weight: 700;
      color: #0b4a4a;
      font-size: 0.9rem;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table .highlight {
      background: rgba(0, 210, 200, 0.12);
      font-weight: 600;
      color: #0b7a7a;
    }
    .rating-stars {
      color: #f5b342;
      font-size: 1.1rem;
      letter-spacing: 2px;
    }
    /* FAQ */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(4px);
      border: 1px solid rgba(0, 180, 180, 0.2);
      border-radius: 18px;
      overflow: hidden;
      transition: box-shadow 0.2s;
    }
    .faq-item:hover {
      box-shadow: 0 8px 20px -8px rgba(0, 150, 150, 0.15);
    }
    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 24px;
      background: transparent;
      border: none;
      font-size: 1rem;
      font-weight: 600;
      color: #0b4a4a;
      cursor: pointer;
      text-align: left;
      font-family: inherit;
      transition: background 0.2s;
    }
    .faq-question:hover {
      background: rgba(0, 200, 200, 0.06);
    }
    .faq-question .arrow {
      transition: transform 0.35s ease;
      font-size: 1.2rem;
      color: #0b8f8f;
    }
    .faq-item.active .faq-question .arrow {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s ease;
      padding: 0 24px;
      color: #2d5656;
      font-size: 0.92rem;
      background: rgba(255, 255, 255, 0.4);
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 24px 20px 24px;
    }
    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .review-card {
      background: rgba(255, 255, 255, 0.75);
      backdrop-filter: blur(4px);
      border: 1px solid rgba(0, 180, 180, 0.2);
      border-radius: 22px;
      padding: 24px;
      transition: transform 0.2s, box-shadow 0.2s;
      display: flex;
      flex-direction: column;
    }
    .review-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 16px 32px -12px rgba(0, 150, 150, 0.2);
    }
    .review-stars {
      color: #f5b342;
      font-size: 0.9rem;
      letter-spacing: 2px;
      margin-bottom: 12px;
    }
    .review-text {
      font-size: 0.9rem;
      color: #1f4444;
      flex: 1;
      margin-bottom: 16px;
      line-height: 1.65;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.82rem;
      color: #0b6b6b;
      font-weight: 600;
    }
    .review-avatar {
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background: linear-gradient(135deg, #0fb3a8, #0b8f8f);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 0.85rem;
    }
    /* 案例展示 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 24px;
    }
    .case-card {
      border-radius: 22px;
      overflow: hidden;
      background: rgba(255, 255, 255, 0.7);
      border: 1px solid rgba(0, 180, 180, 0.2);
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 18px 36px -14px rgba(0, 150, 150, 0.25);
    }
    .case-img {
      width: 100%;
      aspect-ratio: 16/9;
      background: #d0f0ec;
      overflow: hidden;
    }
    .case-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }
    .case-body {
      padding: 20px;
    }
    .case-body h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #0b4a4a;
      margin-bottom: 6px;
    }
    .case-body p {
      font-size: 0.86rem;
      color: #3e6b6b;
    }
    /* 文章列表 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 20px;
    }
    .article-item {
      background: rgba(255, 255, 255, 0.7);
      border: 1px solid rgba(0, 180, 180, 0.15);
      border-radius: 18px;
      padding: 20px 22px;
      transition: all 0.2s;
    }
    .article-item:hover {
      background: #fff;
      box-shadow: 0 12px 24px -12px rgba(0, 150, 150, 0.2);
    }
    .article-item h3 {
      font-size: 0.98rem;
      font-weight: 600;
      color: #0b4a4a;
      margin-bottom: 8px;
    }
    .article-item h3 a {
      text-decoration: none;
      color: inherit;
    }
    .article-item h3 a:hover {
      color: #0b8f8f;
    }
    .article-item p {
      font-size: 0.84rem;
      color: #3e6b6b;
    }
    /* 表单 */
    .form-wrap {
      max-width: 720px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(6px);
      border: 1px solid rgba(0, 180, 180, 0.25);
      border-radius: 28px;
      padding: 40px 32px;
      box-shadow: 0 20px 40px -20px rgba(0, 120, 120, 0.2);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      font-weight: 600;
      font-size: 0.88rem;
      color: #0b4a4a;
      margin-bottom: 6px;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 12px 16px;
      border-radius: 14px;
      border: 1px solid rgba(0, 180, 180, 0.3);
      background: #ffffff;
      font-size: 0.92rem;
      font-family: inherit;
      transition: border 0.2s, box-shadow 0.2s;
      color: #1a2b3c;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: #0fb3a8;
      box-shadow: 0 0 0 3px rgba(0, 180, 180, 0.15);
    }
    .form-group textarea {
      min-height: 100px;
      resize: vertical;
    }
    .form-submit {
      width: 100%;
      padding: 14px;
      border-radius: 40px;
      border: none;
      background: linear-gradient(135deg, #0b8f8f, #12b3a7);
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.25s;
      box-shadow: 0 6px 18px rgba(0, 150, 150, 0.3);
    }
    .form-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(0, 150, 150, 0.4);
    }
    /* 标签云 */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }
    .tag-cloud span {
      background: rgba(255, 255, 255, 0.7);
      border: 1px solid rgba(0, 180, 180, 0.25);
      padding: 6px 16px;
      border-radius: 40px;
      font-size: 0.82rem;
      color: #0b5e5e;
      font-weight: 500;
      transition: all 0.2s;
      cursor: default;
    }
    .tag-cloud span:hover {
      background: #d0f0ec;
      border-color: #0fb3a8;
    }
    /* 页脚 */
    footer {
      background: #093535;
      color: #c8e6e6;
      padding: 50px 0 20px;
      margin-top: 20px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-col p,
    .footer-col a {
      color: #a8d4d4;
      font-size: 0.86rem;
      text-decoration: none;
      display: block;
      margin-bottom: 8px;
      transition: color 0.2s;
    }
    .footer-col a:hover {
      color: #fff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 20px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8rem;
      color: #8bb8b8;
      gap: 10px;
    }
    .footer-bottom a {
      color: #a8d4d4;
      text-decoration: none;
    }
    .footer-bottom a:hover {
      color: #fff;
    }
    /* 浮动客服 */
    .float-customer {
      position: fixed;
      bottom: 30px;
      right: 24px;
      z-index: 200;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: #fff;
      border: 1px solid rgba(0, 180, 180, 0.3);
      box-shadow: 0 6px 20px rgba(0, 140, 140, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
      font-size: 1.4rem;
      text-decoration: none;
      color: #0b6b6b;
    }
    .float-btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 28px rgba(0, 140, 140, 0.35);
    }
    .back-top {
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.3s, visibility 0.3s;
    }
    .back-top.show {
      opacity: 1;
      visibility: visible;
    }
    /* 动画 */
    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(20px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    @keyframes morph {
      0%, 100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
      50% { border-radius: 40% 60% 70% 30% / 40% 70% 30% 60%; }
    }
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    /* 响应式 */
    @media (max-width: 900px) {
      .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 0;
        gap: 0;
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        border-radius: 10px;
        padding: 10px 14px;
        width: 100%;
      }
      .menu-toggle {
        display: block;
      }
      .nav-cta {
        margin-left: auto;
      }
      .hero-visual {
        flex: 1 1 100%;
        min-height: 220px;
      }
      .hero-text {
        flex: 1 1 100%;
      }
    }
    @media (max-width: 600px) {
      .container {
        padding: 0 16px;
      }
      section {
        padding: 48px 0;
      }
      .form-wrap {
        padding: 28px 18px;
      }
      .hero-actions .btn-primary {
        padding: 10px 24px;
        font-size: 0.92rem;
      }
      .footer-grid {
        gap: 24px;
      }
      .float-customer {
        right: 14px;
        bottom: 20px;
      }
      .float-btn {
        width: 46px;
        height: 46px;
        font-size: 1.2rem;
      }
    }