* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    :root {
      --bg-body: #fcf8f0;
      --bg-soft: #fff6e9;
      --ink-deep: #1a2b3c;
      --ink-mid: #2e4057;
      --ink-light: #4a5f73;
      --accent: #ff7b4a;
      --accent-soft: #ff9770;
      --accent-alt: #3a7ca5;
      --accent-green: #2e9b6b;
      --border-light: #e8dccc;
      --card-bg: #ffffffd9;
      --shadow-sm: 0 8px 20px rgba(0,0,0,0.03), 0 2px 6px rgba(0,0,0,0.02);
      --shadow-hover: 0 20px 30px -10px rgba(255,123,74,0.15), 0 8px 18px rgba(0,0,0,0.05);
      --radius-card: 24px;
      --radius-btn: 48px;
      --container: 1200px;
    }
    body {
      font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', sans-serif;
      background-color: var(--bg-body);
      background-image: radial-gradient(circle at 10% 20%, #ffe8d6 0%, transparent 30%),
                        radial-gradient(circle at 90% 70%, #ffe2d0 0%, transparent 35%),
                        linear-gradient(145deg, #fcf8f0 0%, #fff6e9 100%);
      color: var(--ink-deep);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 涂鸦风装饰元素 */
    .doodle-bg {
      position: relative;
      overflow: hidden;
    }
    .doodle-dot {
      position: absolute;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: radial-gradient(circle, #ffd8b0 0%, transparent 70%);
      opacity: 0.3;
      pointer-events: none;
      z-index: 0;
    }
    .doodle-line {
      position: absolute;
      width: 120px;
      height: 120px;
      border: 3px solid #ffb48a;
      border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
      opacity: 0.15;
      transform: rotate(25deg);
      pointer-events: none;
    }
    /* 头部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(12px);
      background: rgba(252, 248, 240, 0.85);
      border-bottom: 1px solid var(--border-light);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 0;
      gap: 16px;
      flex-wrap: wrap;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
      font-weight: 700;
      font-size: 1.4rem;
      color: var(--ink-deep);
      letter-spacing: -0.02em;
      flex-shrink: 0;
    }
    .brand-logo img {
      height: 40px;
      width: auto;
      max-width: 100%;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* 按要求 gap: 0 */
      flex-wrap: wrap;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links li a {
      text-decoration: none;
      color: var(--ink-mid);
      font-weight: 500;
      font-size: 0.92rem;
      padding: 6px 14px;
      border-radius: 30px;
      transition: background 0.2s, color 0.2s;
      white-space: nowrap;
    }
    .nav-links li a:hover {
      background: #ffede3;
      color: var(--accent);
    }
    .nav-right {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .home-link-top {
      font-size: 0.9rem;
      color: var(--ink-mid);
      text-decoration: none;
      padding: 6px 12px;
      border-radius: 30px;
      background: #fff2e9;
      font-weight: 500;
      transition: 0.2s;
    }
    .home-link-top:hover {
      background: var(--accent);
      color: #fff;
    }
    .cta-top {
      background: var(--accent);
      color: #fff !important;
      padding: 8px 20px;
      border-radius: 40px;
      text-decoration: none;
      font-weight: 600;
      font-size: 0.9rem;
      transition: 0.2s;
      border: none;
    }
    .cta-top:hover {
      background: #e05d2c;
      transform: scale(1.02);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: 2px solid var(--border-light);
      font-size: 1.8rem;
      line-height: 1;
      color: var(--ink-deep);
      padding: 4px 12px;
      border-radius: 40px;
      cursor: pointer;
    }
    /* 首屏 Hero 无图片 */
    .hero-section {
      padding: 48px 0 56px;
      position: relative;
    }
    .hero-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 32px;
      align-items: center;
    }
    .hero-content {
      flex: 1 1 360px;
    }
    .hero-badge {
      display: inline-block;
      background: #ffe7d9;
      color: #d94f1e;
      font-weight: 600;
      font-size: 0.85rem;
      padding: 6px 18px;
      border-radius: 40px;
      margin-bottom: 18px;
      border: 1px dashed #ffb48a;
    }
    .hero-content h1 {
      font-size: 2.8rem;
      line-height: 1.2;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--ink-deep);
      margin-bottom: 20px;
    }
    .hero-content h1 span {
      color: var(--accent);
      display: inline-block;
      position: relative;
    }
    .hero-desc {
      font-size: 1.1rem;
      color: var(--ink-light);
      max-width: 540px;
      margin-bottom: 28px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }
    .btn-primary {
      background: var(--accent);
      color: #fff;
      padding: 14px 38px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      font-size: 1rem;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: none;
      cursor: pointer;
      transition: all 0.25s;
      box-shadow: 0 10px 18px -8px rgba(255, 123, 74, 0.5);
    }
    .btn-primary:hover {
      background: #e05d2c;
      transform: translateY(-2px);
      box-shadow: 0 18px 24px -8px rgba(255,123,74,0.6);
    }
    .btn-outline {
      background: transparent;
      color: var(--ink-mid);
      padding: 14px 28px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      text-decoration: none;
      border: 2px solid var(--border-light);
      transition: 0.2s;
    }
    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: #fff6f0;
    }
    .hero-visual {
      flex: 1 1 280px;
      min-height: 260px;
      background: linear-gradient(130deg, #fff0e3, #ffe0d0);
      border-radius: 48px 24px 48px 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      padding: 28px;
      box-shadow: var(--shadow-sm);
      border: 2px dashed #ffcdb0;
    }
    .metric-mini {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      width: 100%;
    }
    .metric-item {
      background: #ffffffd0;
      padding: 18px 10px;
      border-radius: 28px;
      text-align: center;
      backdrop-filter: blur(4px);
      border: 1px solid #fff;
    }
    .metric-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.2;
    }
    .metric-label {
      font-size: 0.85rem;
      color: var(--ink-light);
      font-weight: 500;
    }
    /* 通用标题 */
    .section-title-wrap {
      margin-bottom: 48px;
      text-align: center;
    }
    .section-subtitle {
      color: var(--accent);
      font-weight: 600;
      letter-spacing: 0.08em;
      font-size: 0.85rem;
      text-transform: uppercase;
      margin-bottom: 10px;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--ink-deep);
      line-height: 1.25;
    }
    .section-desc {
      margin-top: 12px;
      color: var(--ink-light);
      max-width: 680px;
      margin-left: auto;
      margin-right: auto;
    }
    /* 卡片通用 */
    .card {
      background: var(--card-bg);
      backdrop-filter: blur(4px);
      border-radius: var(--radius-card);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      border: 1px solid #ffffffb0;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    /* 模块间距 */
    .section {
      padding: 64px 0;
    }
    .section:nth-child(even) {
      background: transparent;
    }
    /* 平台介绍 + 能力卡片 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .feature-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
      list-style: none;
    }
    .feature-badges li {
      background: #fff2e9;
      padding: 8px 16px;
      border-radius: 40px;
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--ink-mid);
      border: 1px solid var(--border-light);
    }
    .capability-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 24px;
      margin-top: 32px;
    }
    .cap-item {
      background: #fff;
      border-radius: 28px;
      padding: 24px;
      box-shadow: var(--shadow-sm);
      border-left: 6px solid var(--accent-soft);
    }
    .cap-item h3 {
      font-size: 1.2rem;
      margin-bottom: 8px;
      font-weight: 700;
    }
    .cap-item p {
      color: var(--ink-light);
      font-size: 0.92rem;
    }
    /* 流程步骤 */
    .steps-row {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      justify-content: center;
    }
    .step-card {
      flex: 1 1 200px;
      background: #fff;
      border-radius: 28px;
      padding: 28px 20px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
      border: 1px solid #fff0e6;
    }
    .step-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: #ffd3bd;
      line-height: 1;
    }
    .step-card h3 {
      font-size: 1.1rem;
      margin: 12px 0 6px;
    }
    .step-card p {
      font-size: 0.9rem;
      color: var(--ink-light);
    }
    /* 对比表格容器 */
    .table-scroll {
      overflow-x: auto;
      border-radius: 24px;
      background: #fff;
      box-shadow: var(--shadow-sm);
      padding: 4px;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 640px;
    }
    .compare-table th {
      background: #ffeade;
      color: var(--ink-deep);
      font-weight: 700;
      padding: 16px 18px;
      text-align: left;
      font-size: 0.95rem;
    }
    .compare-table td {
      padding: 16px 18px;
      border-bottom: 1px solid #f0e4d8;
      color: var(--ink-mid);
      font-size: 0.92rem;
    }
    .badge-star {
      background: var(--accent-green);
      color: #fff;
      padding: 4px 12px;
      border-radius: 30px;
      font-size: 0.8rem;
      font-weight: 600;
      display: inline-block;
    }
    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .review-card {
      background: #fff;
      border-radius: 28px;
      padding: 26px;
      box-shadow: var(--shadow-sm);
      border: 1px solid #fff6ed;
      transition: 0.25s;
    }
    .review-card:hover {
      transform: scale(1.01);
      box-shadow: var(--shadow-hover);
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .avatar-placeholder {
      width: 48px;
      height: 48px;
      background: linear-gradient(120deg, #ffb48a, #ff7b4a);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 1.2rem;
    }
    .review-name {
      font-weight: 700;
      font-size: 1rem;
    }
    .review-role {
      font-size: 0.8rem;
      color: var(--ink-light);
    }
    .review-text {
      color: var(--ink-mid);
      font-size: 0.95rem;
    }
    /* FAQ 折叠 */
    .faq-list {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      background: #fff;
      border-radius: 20px;
      margin-bottom: 14px;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 24px;
      font-weight: 600;
      cursor: pointer;
      transition: 0.2s;
      background: transparent;
      border: none;
      width: 100%;
      text-align: left;
      font-size: 1rem;
      color: var(--ink-deep);
    }
    .faq-question:hover {
      background: #fff9f4;
    }
    .faq-question::after {
      content: '+';
      font-size: 1.5rem;
      font-weight: 400;
      color: var(--accent);
      transition: transform 0.2s;
    }
    .faq-item.active .faq-question::after {
      content: '−';
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      padding: 0 24px;
      background: #fffcf9;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 24px 20px;
    }
    .faq-answer p {
      color: var(--ink-light);
      font-size: 0.95rem;
    }
    /* 表单 */
    .form-card {
      background: #fff;
      border-radius: 32px;
      padding: 32px;
      box-shadow: var(--shadow-sm);
      max-width: 780px;
      margin: 0 auto;
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-bottom: 18px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-weight: 600;
      font-size: 0.9rem;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      padding: 12px 16px;
      border-radius: 40px;
      border: 2px solid #f0e2d4;
      background: #fefaf7;
      font-size: 0.95rem;
      transition: 0.2s;
      font-family: inherit;
    }
    .form-group textarea {
      border-radius: 20px;
      min-height: 90px;
      resize: vertical;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: var(--accent);
      background: #fff;
    }
    .submit-btn {
      background: var(--accent);
      color: #fff;
      border: none;
      padding: 14px 36px;
      border-radius: 60px;
      font-weight: 700;
      font-size: 1rem;
      cursor: pointer;
      transition: 0.2s;
      width: 100%;
    }
    .submit-btn:hover {
      background: #e05d2c;
    }
    /* 页脚 */
    .site-footer {
      background: #1f2e3a;
      color: #e6ded6;
      padding: 48px 0 24px;
      margin-top: 32px;
      border-radius: 40px 40px 0 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 32px;
    }
    .footer-col p, .footer-col a {
      color: #cbd3dc;
      font-size: 0.9rem;
      text-decoration: none;
      display: block;
      margin-bottom: 8px;
    }
    .footer-col a:hover {
      color: #ffb48a;
    }
    .footer-title {
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      font-size: 1rem;
    }
    .footer-bottom {
      border-top: 1px solid #3e4f5e;
      margin-top: 32px;
      padding-top: 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #9eb0c0;
    }
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-top: 8px;
    }
    .friend-links a {
      color: #cbd3dc;
      text-decoration: none;
      font-size: 0.85rem;
      display: inline;
      margin-bottom: 0;
    }
    .friend-links a:hover {
      color: #ffb48a;
    }
    /* 浮动客服 */
    .float-kefu {
      position: fixed;
      right: 24px;
      bottom: 80px;
      z-index: 200;
      background: var(--accent);
      color: #fff;
      width: 60px;
      height: 60px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      box-shadow: 0 10px 20px rgba(255,123,74,0.4);
      cursor: pointer;
      transition: 0.2s;
      border: none;
    }
    .float-kefu:hover {
      transform: scale(1.08);
      background: #e05d2c;
    }
    .back-top {
      position: fixed;
      right: 24px;
      bottom: 20px;
      z-index: 200;
      background: #fff;
      border: 2px solid var(--border-light);
      width: 48px;
      height: 48px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      cursor: pointer;
      color: var(--ink-mid);
      transition: 0.2s;
      box-shadow: var(--shadow-sm);
    }
    .back-top:hover {
      background: var(--accent);
      color: #fff;
      border-color: var(--accent);
    }
    /* 响应式 */
    @media (max-width: 900px) {
      .nav-wrapper {
        flex-wrap: wrap;
      }
      .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 0;
        gap: 0;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li a {
        display: block;
        width: 100%;
      }
      .menu-toggle {
        display: block;
      }
      .hero-content h1 {
        font-size: 2.2rem;
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .section-title {
        font-size: 1.8rem;
      }
    }
    @media (max-width: 600px) {
      .hero-content h1 {
        font-size: 1.8rem;
      }
      .metric-mini {
        grid-template-columns: 1fr;
      }
      .container {
        padding: 0 16px;
      }
    }
    /* 动画 */
    .fade-up {
      opacity: 0;
      transform: translateY(20px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .fade-up.visible {
      opacity: 1;
      transform: translateY(0);
    }
    /* 小部件 */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 24px;
    }
    .tag-cloud span {
      background: #fff0e5;
      padding: 6px 18px;
      border-radius: 40px;
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--ink-mid);
    }
    .article-list {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
      gap: 16px;
    }
    .article-item {
      background: #fff;
      padding: 18px 20px;
      border-radius: 24px;
      box-shadow: var(--shadow-sm);
      border-left: 4px solid var(--accent);
    }
    .article-item a {
      color: var(--ink-deep);
      font-weight: 600;
      text-decoration: none;
      font-size: 0.95rem;
    }
    .article-item a:hover {
      color: var(--accent);
    }
    .mini-logo {
      height: 28px;
      width: auto;
    }
    .home-link-bottom {
      color: #ffb48a;
      text-decoration: none;
      font-weight: 600;
    }
    .kefu-qr {
      max-width: 110px;
      height: auto;
      display: block;
      border-radius: 12px;
    }
    .footer-kefu-wrap {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .wechat-id {
      font-size: 0.9rem;
      color: #cbd3dc;
    }