* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
      background: #0b0518;
      background-image: radial-gradient(circle at 25% 10%, rgba(160, 30, 255, 0.25) 0%, transparent 40%),
                        radial-gradient(circle at 75% 80%, rgba(255, 30, 150, 0.2) 0%, transparent 45%),
                        linear-gradient(145deg, #0e0420 0%, #120528 100%);
      color: #f0eaff;
      line-height: 1.6;
      overflow-x: hidden;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 32px;
    }
    @media (max-width: 768px) {
      .container {
        padding: 0 20px;
      }
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    /* 导航 */
    .navbar {
      padding: 16px 0;
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(14, 4, 32, 0.75);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(200, 100, 255, 0.2);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
    }
    .nav-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.4rem;
      letter-spacing: 1px;
      color: #ffffff;
    }
    .nav-brand img {
      height: 40px;
      width: auto;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      flex-wrap: wrap;
    }
    .nav-links a {
      color: #d9c6ff;
      padding: 8px 12px;
      border-radius: 40px;
      font-size: 0.95rem;
      font-weight: 500;
      transition: color 0.2s, background 0.2s;
      white-space: nowrap;
    }
    .nav-links a:hover {
      color: #ffffff;
      background: rgba(255, 80, 200, 0.2);
    }
    .nav-cta {
      background: linear-gradient(135deg, #c42eff, #ff3f8a);
      color: #fff;
      padding: 8px 22px;
      border-radius: 40px;
      font-weight: 600;
      font-size: 0.95rem;
      box-shadow: 0 0 12px rgba(255, 60, 180, 0.6);
      transition: transform 0.2s, box-shadow 0.2s;
      margin-left: 16px;
    }
    .nav-cta:hover {
      transform: scale(1.02);
      box-shadow: 0 0 20px rgba(255, 60, 180, 0.9);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: white;
      font-size: 2rem;
      cursor: pointer;
      line-height: 1;
      padding: 4px 10px;
    }
    @media (max-width: 1100px) {
      .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 0 8px;
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links a {
        padding: 10px 0;
        width: 100%;
        border-radius: 8px;
      }
      .menu-toggle {
        display: block;
        order: 2;
      }
      .nav-cta {
        order: 1;
        margin-left: auto;
        margin-right: 8px;
      }
      .nav-brand {
        order: 0;
      }
    }
    @media (max-width: 480px) {
      .nav-cta {
        font-size: 0.8rem;
        padding: 6px 12px;
      }
      .nav-brand {
        font-size: 1.1rem;
      }
    }
    /* 首屏 hero 无图片 */
    .hero {
      padding: 60px 0 70px;
      position: relative;
      overflow: hidden;
    }
    .hero-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      position: relative;
      z-index: 2;
    }
    .hero-badge {
      background: rgba(200, 80, 255, 0.2);
      border: 1px solid rgba(200, 80, 255, 0.6);
      padding: 6px 20px;
      border-radius: 40px;
      font-size: 0.9rem;
      letter-spacing: 2px;
      margin-bottom: 24px;
      color: #e6b0ff;
      backdrop-filter: blur(4px);
    }
    .hero h1 {
      font-size: clamp(2.2rem, 6vw, 4.2rem);
      font-weight: 800;
      line-height: 1.2;
      max-width: 1000px;
      margin-bottom: 20px;
      background: linear-gradient(135deg, #ffffff 20%, #ffb8f0 80%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      text-shadow: 0 0 30px rgba(255, 100, 200, 0.5);
    }
    .hero-desc {
      font-size: 1.15rem;
      max-width: 780px;
      color: #cab9ff;
      margin-bottom: 40px;
    }
    .hero-buttons {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 18px;
      margin-bottom: 50px;
    }
    .btn-primary {
      background: linear-gradient(135deg, #b22aff, #ff2d78);
      border: none;
      color: #fff;
      font-weight: 700;
      padding: 16px 42px;
      border-radius: 60px;
      font-size: 1.1rem;
      box-shadow: 0 0 24px rgba(255, 50, 160, 0.7);
      transition: all 0.25s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      letter-spacing: 0.5px;
    }
    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 0 36px rgba(255, 50, 160, 1);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid #b46eff;
      color: #e9d5ff;
      font-weight: 600;
      padding: 16px 38px;
      border-radius: 60px;
      font-size: 1.05rem;
      transition: all 0.25s;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-outline:hover {
      background: rgba(180, 100, 255, 0.15);
      border-color: #d59aff;
    }
    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 24px 40px;
      margin-top: 20px;
      padding: 18px 0;
    }
    .stat-item {
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    .stat-number {
      font-size: 2.4rem;
      font-weight: 800;
      color: #ffffff;
      line-height: 1.1;
      background: linear-gradient(135deg, #fff, #ffb6e6);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      filter: drop-shadow(0 0 10px #ff44a8);
    }
    .stat-label {
      font-size: 0.9rem;
      color: #bca5e0;
      letter-spacing: 1px;
    }
    /* 通用 section */
    section {
      padding: 70px 0;
      position: relative;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: #ffffff;
      letter-spacing: 1px;
    }
    .section-subtitle {
      font-size: 1.05rem;
      color: #bda8e6;
      max-width: 700px;
      margin-bottom: 48px;
    }
    .section-header {
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      margin-bottom: 24px;
    }
    .section-header .section-subtitle {
      margin-bottom: 0;
    }
    /* 卡片网格 */
    .card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 24px;
    }
    .card {
      background: rgba(26, 12, 48, 0.7);
      border: 1px solid rgba(190, 100, 255, 0.25);
      border-radius: 24px;
      padding: 28px 22px;
      backdrop-filter: blur(4px);
      transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    }
    .card:hover {
      transform: translateY(-6px);
      border-color: rgba(255, 100, 255, 0.7);
      box-shadow: 0 18px 40px rgba(200, 0, 255, 0.35);
    }
    .card h3 {
      font-size: 1.3rem;
      margin-bottom: 12px;
      color: #ffffff;
    }
    .card p {
      color: #c3b0e0;
      font-size: 0.95rem;
    }
    /* 数据卡片 */
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      gap: 20px;
      margin: 40px 0 10px;
    }
    .metric-card {
      background: rgba(40, 15, 70, 0.8);
      backdrop-filter: blur(8px);
      border-radius: 20px;
      padding: 24px 12px;
      text-align: center;
      border: 1px solid rgba(180, 80, 255, 0.35);
    }
    .metric-value {
      font-size: 2rem;
      font-weight: 800;
      color: #ffb3f0;
    }
    .metric-label {
      font-size: 0.85rem;
      color: #b69ed6;
      letter-spacing: 1px;
    }
    /* 流程步骤 */
    .steps {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
    }
    .step-item {
      flex: 1 1 180px;
      background: rgba(30, 12, 55, 0.7);
      border-radius: 20px;
      padding: 28px 18px;
      border-left: 4px solid #cc44ff;
      transition: background 0.3s;
    }
    .step-item:hover {
      background: rgba(50, 18, 90, 0.8);
    }
    .step-num {
      font-size: 2rem;
      font-weight: 800;
      color: #d684ff;
      opacity: 0.8;
      line-height: 1;
      margin-bottom: 10px;
    }
    .step-item h4 {
      color: #ffffff;
      font-size: 1.2rem;
      margin-bottom: 6px;
    }
    .step-item p {
      color: #bfa8db;
      font-size: 0.92rem;
    }
    /* 表格 */
    .table-wrapper {
      overflow-x: auto;
      border-radius: 24px;
      border: 1px solid rgba(200, 100, 255, 0.3);
      background: rgba(18, 6, 40, 0.7);
      margin: 28px 0 10px;
    }
    table {
      width: 100%;
      border-collapse: collapse;
      min-width: 720px;
      font-size: 0.95rem;
    }
    th {
      background: rgba(140, 40, 200, 0.5);
      color: #fff;
      font-weight: 600;
      padding: 16px 18px;
      text-align: left;
      letter-spacing: 0.5px;
    }
    td {
      padding: 14px 18px;
      border-bottom: 1px solid rgba(160, 80, 255, 0.15);
      color: #d6c6f0;
    }
    tr:last-child td {
      border-bottom: none;
    }
    .highlight-cell {
      color: #ffffff;
      font-weight: 600;
      background: rgba(255, 50, 200, 0.1);
    }
    /* 用户评论 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 22px;
    }
    .review-card {
      background: rgba(24, 10, 48, 0.8);
      border-radius: 24px;
      padding: 26px 20px;
      border: 1px solid rgba(255, 100, 255, 0.25);
      transition: transform 0.25s;
    }
    .review-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255, 100, 255, 0.6);
    }
    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #b22aff, #ff3c8a);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
      font-size: 1.2rem;
    }
    .review-name {
      font-weight: 600;
      color: #fff;
    }
    .review-role {
      font-size: 0.8rem;
      color: #b08ed6;
    }
    .review-text {
      color: #cfbfe8;
      font-size: 0.93rem;
      line-height: 1.5;
    }
    /* FAQ折叠 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: rgba(26, 12, 48, 0.75);
      border-radius: 18px;
      margin-bottom: 14px;
      border: 1px solid rgba(180, 80, 255, 0.25);
      overflow: hidden;
      transition: border-color 0.25s;
    }
    .faq-item:hover {
      border-color: rgba(210, 100, 255, 0.6);
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 24px;
      cursor: pointer;
      font-weight: 600;
      color: #fff;
      transition: background 0.2s;
    }
    .faq-question:hover {
      background: rgba(140, 60, 220, 0.15);
    }
    .faq-icon {
      font-size: 1.5rem;
      line-height: 1;
      color: #d48aff;
      transition: transform 0.3s;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s;
      color: #cabce0;
      font-size: 0.95rem;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 0 24px 24px;
    }
    /* 表单 */
    .form-section {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: start;
    }
    @media (max-width: 900px) {
      .form-section {
        grid-template-columns: 1fr;
        gap: 32px;
      }
    }
    .form-card {
      background: rgba(20, 6, 44, 0.85);
      border-radius: 32px;
      padding: 36px 28px;
      border: 1px solid rgba(200, 100, 255, 0.35);
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      margin-bottom: 6px;
      color: #d9c6ff;
      font-size: 0.9rem;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 14px 18px;
      background: rgba(16, 4, 32, 0.9);
      border: 1px solid rgba(160, 80, 255, 0.4);
      border-radius: 16px;
      color: #fff;
      font-size: 0.95rem;
      transition: border-color 0.2s, box-shadow 0.2s;
      outline: none;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: #d47aff;
      box-shadow: 0 0 0 3px rgba(210, 100, 255, 0.25);
    }
    .form-group textarea {
      min-height: 110px;
      resize: vertical;
    }
    .form-submit {
      background: linear-gradient(135deg, #b22aff, #ff3a7c);
      border: none;
      color: #fff;
      font-weight: 700;
      padding: 16px 30px;
      border-radius: 60px;
      font-size: 1.05rem;
      width: 100%;
      cursor: pointer;
      transition: all 0.25s;
      box-shadow: 0 6px 24px rgba(200, 50, 200, 0.5);
      letter-spacing: 1px;
    }
    .form-submit:hover {
      transform: scale(1.02);
      box-shadow: 0 8px 32px rgba(255, 60, 180, 0.8);
    }
    /* 标签云 */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 20px;
    }
    .tag {
      background: rgba(150, 50, 220, 0.25);
      border: 1px solid rgba(200, 120, 255, 0.35);
      padding: 6px 16px;
      border-radius: 40px;
      font-size: 0.85rem;
      color: #dcc4ff;
      transition: background 0.2s;
    }
    .tag:hover {
      background: rgba(200, 100, 255, 0.3);
    }
    /* 案例图片 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 24px;
    }
    .case-item {
      border-radius: 24px;
      overflow: hidden;
      background: #1a0a2e;
      border: 1px solid rgba(200, 100, 255, 0.25);
      transition: transform 0.3s;
    }
    .case-item:hover {
      transform: scale(1.02);
      border-color: #d47aff;
    }
    .case-item img {
      width: 100%;
      height: auto;
      aspect-ratio: 16 / 9;
      object-fit: cover;
    }
    .case-caption {
      padding: 14px 16px;
      font-size: 0.9rem;
      color: #d3c0ee;
    }
    /* 文章列表 */
    .article-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      background: rgba(20, 8, 40, 0.6);
      border-radius: 24px;
      padding: 20px;
    }
    .article-link {
      display: flex;
      align-items: center;
      padding: 12px 16px;
      border-radius: 14px;
      background: rgba(60, 20, 110, 0.4);
      color: #e4d0ff;
      font-size: 0.95rem;
      transition: background 0.2s, transform 0.2s;
      border: 1px solid transparent;
    }
    .article-link:hover {
      background: rgba(140, 60, 220, 0.25);
      border-color: rgba(255, 100, 255, 0.4);
      transform: translateX(4px);
    }
    /* footer */
    footer {
      background: #0b0418;
      border-top: 1px solid rgba(160, 80, 255, 0.2);
      padding: 50px 0 30px;
      color: #b7a5d4;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 28px;
      margin-bottom: 36px;
    }
    .footer-col h4 {
      color: #ffffff;
      margin-bottom: 16px;
      font-size: 1.1rem;
    }
    .footer-col p, .footer-col a {
      color: #b5a0d6;
      font-size: 0.9rem;
      line-height: 1.8;
    }
    .footer-col a:hover {
      color: #ffaaff;
      text-decoration: underline;
    }
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 8px 16px;
      margin-top: 8px;
    }
    .friend-links a {
      color: #a88ac0;
      font-size: 0.85rem;
    }
    .friend-links a:hover {
      color: #eab8ff;
    }
    .copyright {
      border-top: 1px solid rgba(150, 70, 220, 0.25);
      padding-top: 24px;
      text-align: center;
      color: #7e6d9c;
      font-size: 0.85rem;
    }
    .copyright a {
      color: #9e7fc0;
    }
    /* 浮动客服 */
    .floating-kefu {
      position: fixed;
      bottom: 28px;
      right: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
      align-items: flex-end;
    }
    .kefu-btn {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: linear-gradient(135deg, #b22aff, #ff3a7c);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 8px 24px rgba(255, 40, 150, 0.6);
      transition: transform 0.2s;
      border: none;
      color: #fff;
      font-size: 1.6rem;
      font-weight: 600;
    }
    .kefu-btn:hover {
      transform: scale(1.1);
    }
    .kefu-popover {
      display: none;
      background: #1f0d38;
      border: 1px solid #b24eff;
      border-radius: 20px;
      padding: 18px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.7);
      width: 220px;
      text-align: center;
    }
    .kefu-popover.show {
      display: block;
      animation: fadeIn 0.2s;
    }
    .kefu-popover img {
      width: 140px;
      margin: 0 auto 10px;
      border-radius: 12px;
    }
    .kefu-popover p {
      color: #ddd0f0;
      font-size: 0.8rem;
    }
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }
    /* 滚动动画 */
    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    /* 图片等 */
    .logo-img {
      display: block;
      max-width: 100%;
      height: auto;
    }
    .flex-row {
      display: flex;
      gap: 24px;
      flex-wrap: wrap;
      align-items: flex-start;
    }
    .flex-row > * {
      flex: 1 1 240px;
    }
    .badge-star {
      color: #ffd966;
      letter-spacing: 2px;
    }
    .rating-box {
      background: rgba(255, 160, 0, 0.15);
      border: 1px solid #ffb347;
      border-radius: 30px;
      padding: 8px 20px;
      display: inline-block;
      color: #ffcc80;
      font-weight: 600;
    }
    /* 价格参考 */
    .price-ref {
      display: flex;
      gap: 24px;
      flex-wrap: wrap;
    }
    .price-card {
      background: rgba(40, 18, 68, 0.7);
      border-radius: 20px;
      padding: 22px;
      flex: 1 1 180px;
      border: 1px solid rgba(220, 120, 255, 0.3);
      text-align: center;
    }
    .price-value {
      font-size: 2rem;
      color: #ffd0ff;
      font-weight: 800;
    }