* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    :root {
      --brand: #1fc95b;
      --brand-dark: #0fa84a;
      --brand-light: #e6f9ed;
      --brand-glow: rgba(31, 201, 91, 0.25);
      --ink: #13261c;
      --ink-soft: #3a5245;
      --ink-muted: #62786c;
      --bg-base: #f7fcf8;
      --bg-card: #ffffff;
      --bg-soft: #f0f9f3;
      --border: #d9eee1;
      --shadow-sm: 0 2px 10px rgba(18, 40, 26, 0.05);
      --shadow-md: 0 10px 30px rgba(18, 40, 26, 0.08);
      --shadow-lg: 0 20px 50px rgba(18, 40, 26, 0.12);
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --container: 1180px;
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font);
      background: linear-gradient(180deg, #f4fcf7 0%, #ffffff 40%, #f7fcf8 100%);
      color: var(--ink);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    .container {
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 24px;
    }
    section {
      padding: 64px 0;
    }
    h1, h2, h3, h4 {
      color: var(--ink);
      line-height: 1.3;
      font-weight: 700;
    }
    h1 { font-size: 2.4rem; letter-spacing: -0.02em; }
    h2 { font-size: 1.9rem; margin-bottom: 16px; letter-spacing: -0.01em; }
    h3 { font-size: 1.2rem; }
    p { color: var(--ink-soft); }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; height: auto; display: block; }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      transition: box-shadow 0.3s;
    }
    .site-header.scrolled { box-shadow: var(--shadow-sm); }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 68px;
      gap: 16px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .brand img { width: 40px; height: auto; }
    .brand-text {
      font-weight: 800;
      font-size: 1.2rem;
      color: var(--ink);
      letter-spacing: 0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.93rem;
      color: var(--ink-soft);
      border-radius: 8px;
      transition: color 0.2s, background 0.2s;
      font-weight: 500;
    }
    .nav-links a:hover { color: var(--brand-dark); background: var(--brand-light); }
    .header-cta {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 10px 22px;
      border-radius: 50px;
      font-weight: 600;
      font-size: 0.95rem;
      border: 2px solid transparent;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--brand);
      color: #fff;
      box-shadow: 0 6px 18px var(--brand-glow);
    }
    .btn-primary:hover {
      background: var(--brand-dark);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px var(--brand-glow);
    }
    .btn-outline {
      background: transparent;
      border-color: var(--border);
      color: var(--ink);
    }
    .btn-outline:hover {
      border-color: var(--brand);
      color: var(--brand-dark);
      background: var(--brand-light);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--ink);
      margin: 5px 0;
      border-radius: 2px;
      transition: 0.3s;
    }

    /* Hero */
    .hero {
      padding: 80px 0 72px;
      position: relative;
      overflow: hidden;
      background:
        radial-gradient(circle at 10% 20%, rgba(31,201,91,0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 10%, rgba(31,201,91,0.08) 0%, transparent 35%),
        linear-gradient(180deg, #f2fcf6 0%, #ffffff 100%);
    }
    .hero::before {
      content: "";
      position: absolute;
      top: -120px; right: -120px;
      width: 360px; height: 360px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(31,201,91,0.18), transparent 70%);
      pointer-events: none;
    }
    .hero-inner {
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 24px;
      max-width: 780px;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--brand-light);
      color: var(--brand-dark);
      padding: 6px 18px;
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 600;
      border: 1px solid var(--border);
      animation: fadeUp 0.6s ease both;
    }
    .hero h1 {
      font-size: clamp(2rem, 5vw, 3.1rem);
      line-height: 1.15;
      font-weight: 800;
      color: var(--ink);
      animation: fadeUp 0.7s 0.05s ease both;
    }
    .hero h1 .highlight {
      color: var(--brand-dark);
      position: relative;
      display: inline-block;
    }
    .hero-desc {
      font-size: 1.1rem;
      color: var(--ink-soft);
      max-width: 600px;
      animation: fadeUp 0.7s 0.1s ease both;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 8px;
      animation: fadeUp 0.7s 0.15s ease both;
    }
    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      gap: 28px 48px;
      margin-top: 20px;
      padding-top: 24px;
      border-top: 1px solid var(--border);
      width: 100%;
      animation: fadeUp 0.7s 0.2s ease both;
    }
    .stat-item .num {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--brand-dark);
      line-height: 1.2;
    }
    .stat-item .label {
      font-size: 0.85rem;
      color: var(--ink-muted);
    }
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(22px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* 通用 Section 标题 */
    .sec-head {
      margin-bottom: 40px;
      max-width: 720px;
    }
    .sec-head .eyebrow {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 2px;
      color: var(--brand-dark);
      background: var(--brand-light);
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 12px;
      text-transform: uppercase;
    }
    .sec-head h2 { margin-bottom: 10px; }
    .sec-head p { font-size: 1rem; color: var(--ink-muted); }

    /* 服务能力卡片 */
    .card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 22px;
    }
    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: transform 0.25s, box-shadow 0.25s;
      display: flex;
      flex-direction: column;
      gap: 12px;
      box-shadow: var(--shadow-sm);
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: var(--brand);
    }
    .service-icon {
      width: 46px; height: 46px;
      border-radius: 12px;
      background: var(--brand-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--brand-dark);
      font-size: 1.4rem;
      font-weight: 700;
    }
    .service-card h3 { font-size: 1.1rem; margin: 0; }
    .service-card p { font-size: 0.92rem; color: var(--ink-muted); margin: 0; }

    /* 平台介绍块 */
    .about-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: start;
    }
    .about-text p { margin-bottom: 16px; color: var(--ink-soft); }
    .about-features {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .about-feature {
      display: flex;
      gap: 16px;
      align-items: flex-start;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 18px 20px;
      box-shadow: var(--shadow-sm);
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .about-feature:hover { border-color: var(--brand); box-shadow: var(--shadow-md); }
    .about-feature .f-num {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--brand-dark);
      background: var(--brand-light);
      border-radius: 8px;
      padding: 4px 12px;
      flex-shrink: 0;
    }
    .about-feature h4 { font-size: 1rem; margin-bottom: 4px; }
    .about-feature p { font-size: 0.88rem; color: var(--ink-muted); margin: 0; }

    /* 数据指标 */
    .metrics-band {
      background: linear-gradient(135deg, #0d2b1a, #124a2c);
      border-radius: var(--radius-lg);
      padding: 44px 36px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      gap: 28px;
      color: #fff;
      box-shadow: var(--shadow-lg);
    }
    .metric-item { text-align: center; }
    .metric-item .num {
      font-size: 2.1rem;
      font-weight: 800;
      color: #5cf09a;
      line-height: 1.2;
    }
    .metric-item .label {
      font-size: 0.9rem;
      color: rgba(255,255,255,0.72);
      margin-top: 4px;
    }

    /* 流程步骤 */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      counter-reset: step;
    }
    .step-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
      transition: box-shadow 0.25s, transform 0.25s;
    }
    .step-item:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .step-item::before {
      counter-increment: step;
      content: "0" counter(step);
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--brand-light);
      display: block;
      margin-bottom: 12px;
      line-height: 1;
    }
    .step-item h4 { font-size: 1.05rem; margin-bottom: 6px; }
    .step-item p { font-size: 0.88rem; color: var(--ink-muted); margin: 0; }

    /* 对比表格 */
    .compare-table-wrap {
      overflow-x: auto;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 620px;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid var(--border);
      font-size: 0.93rem;
    }
    .compare-table th {
      background: var(--bg-soft);
      color: var(--ink);
      font-weight: 700;
    }
    .compare-table td { color: var(--ink-soft); }
    .compare-table tr:last-child td { border-bottom: none; }
    .compare-table .badge-star {
      background: var(--brand-light);
      color: var(--brand-dark);
      font-weight: 700;
      padding: 2px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
    }
    .compare-rating {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 18px;
      margin-top: 22px;
      font-size: 1rem;
      font-weight: 600;
      color: var(--ink-soft);
    }
    .compare-rating .score {
      font-size: 2rem;
      font-weight: 800;
      color: var(--brand-dark);
      line-height: 1;
    }

    /* 案例展示 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 22px;
    }
    .case-card {
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-card);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
    .case-media {
      aspect-ratio: 4 / 3;
      overflow: hidden;
      background: var(--bg-soft);
    }
    .case-media img {
      width: 100%; height: 100%;
      object-fit: contain;
      display: block;
    }
    .case-body { padding: 18px 20px; }
    .case-body h4 { font-size: 1rem; margin-bottom: 4px; }
    .case-body p { font-size: 0.85rem; color: var(--ink-muted); margin: 0; }

    /* 评论区 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 22px;
    }
    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: border-color 0.2s, box-shadow 0.2s;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .review-card:hover { border-color: var(--brand); box-shadow: var(--shadow-md); }
    .review-stars { color: #f5b301; font-size: 0.95rem; letter-spacing: 2px; }
    .review-text { font-size: 0.93rem; color: var(--ink-soft); }
    .review-user { display: flex; align-items: center; gap: 10px; margin-top: auto; }
    .review-avatar {
      width: 40px; height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--brand-light), var(--border));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--brand-dark);
      font-size: 0.9rem;
      flex-shrink: 0;
    }
    .review-user-info .name { font-weight: 600; font-size: 0.9rem; }
    .review-user-info .role { font-size: 0.78rem; color: var(--ink-muted); }

    /* FAQ */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 880px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .faq-item.open { border-color: var(--brand); box-shadow: var(--shadow-sm); }
    .faq-q {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      padding: 18px 22px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1rem;
      font-weight: 600;
      color: var(--ink);
      cursor: pointer;
      font-family: inherit;
    }
    .faq-q .arrow {
      flex-shrink: 0;
      width: 24px; height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--brand-dark);
      transition: transform 0.25s;
      font-size: 1.1rem;
    }
    .faq-item.open .arrow { transform: rotate(180deg); }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.25s;
      padding: 0 22px;
      color: var(--ink-muted);
      font-size: 0.92rem;
    }
    .faq-item.open .faq-a { max-height: 300px; padding: 0 22px 20px; }

    /* 文章列表 */
    .article-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 20px;
    }
    .article-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 22px 22px 18px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
    .article-card .tag {
      display: inline-block;
      font-size: 0.75rem;
      color: var(--brand-dark);
      background: var(--brand-light);
      border-radius: 20px;
      padding: 2px 12px;
      margin-bottom: 10px;
      font-weight: 600;
    }
    .article-card h4 { font-size: 1rem; margin-bottom: 6px; line-height: 1.4; }
    .article-card p { font-size: 0.85rem; color: var(--ink-muted); margin-bottom: 10px; }
    .article-card .link-more {
      font-size: 0.85rem;
      color: var(--brand-dark);
      font-weight: 600;
    }

    /* 标签云 */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .tag-cloud span {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 30px;
      padding: 6px 16px;
      font-size: 0.85rem;
      color: var(--ink-soft);
      transition: background 0.2s, border-color 0.2s;
      cursor: default;
    }
    .tag-cloud span:hover { background: var(--brand-light); border-color: var(--brand); color: var(--brand-dark); }

    /* 表单 */
    .contact-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: start;
    }
    .form-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-md);
    }
    .form-row {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 16px;
    }
    .form-row label { font-size: 0.9rem; font-weight: 600; color: var(--ink); }
    .form-row input, .form-row select, .form-row textarea {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid var(--border);
      border-radius: 10px;
      font-size: 0.93rem;
      font-family: inherit;
      background: var(--bg-base);
      color: var(--ink);
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .form-row input:focus, .form-row select:focus, .form-row textarea:focus {
      outline: none;
      border-color: var(--brand);
      box-shadow: 0 0 0 3px var(--brand-glow);
    }
    .form-row textarea { min-height: 100px; resize: vertical; }
    .form-card .btn { width: 100%; margin-top: 8px; }
    .contact-info-block {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .contact-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 18px;
    }
    .contact-item .ci-icon {
      width: 40px; height: 40px;
      border-radius: 10px;
      background: var(--brand-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      flex-shrink: 0;
    }
    .contact-item h4 { font-size: 0.95rem; margin-bottom: 2px; }
    .contact-item p, .contact-item a { font-size: 0.88rem; color: var(--ink-muted); }

    /* 页脚 */
    .site-footer {
      background: #0d2b1a;
      color: rgba(255,255,255,0.72);
      padding: 48px 0 24px;
      margin-top: 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 36px;
      padding-bottom: 32px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .footer-brand .brand-text { color: #fff; }
    .footer-brand p { font-size: 0.88rem; color: rgba(255,255,255,0.55); margin-top: 10px; max-width: 280px; }
    .footer-col h5 { color: #fff; font-size: 0.95rem; margin-bottom: 14px; font-weight: 600; }
    .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
    .footer-col ul a { font-size: 0.86rem; color: rgba(255,255,255,0.6); transition: color 0.2s; }
    .footer-col ul a:hover { color: var(--brand); }
    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      padding-top: 22px;
      font-size: 0.82rem;
      color: rgba(255,255,255,0.45);
    }
    .footer-bottom a { color: rgba(255,255,255,0.55); }
    .footer-bottom a:hover { color: var(--brand); }

    /* 浮动客服 */
    .float-service {
      position: fixed;
      right: 20px;
      bottom: 90px;
      z-index: 90;
      display: flex;
      flex-direction: column;
      gap: 12px;
      align-items: center;
    }
    .float-btn {
      width: 48px; height: 48px;
      border-radius: 50%;
      background: var(--brand);
      color: #fff;
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      box-shadow: 0 6px 20px var(--brand-glow);
      transition: transform 0.2s, background 0.2s;
    }
    .float-btn:hover { background: var(--brand-dark); transform: scale(1.08); }
    .back-top {
      position: fixed;
      right: 20px;
      bottom: 24px;
      z-index: 90;
      width: 44px; height: 44px;
      border-radius: 50%;
      background: #fff;
      border: 1px solid var(--border);
      color: var(--ink-soft);
      font-size: 1.1rem;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.3s, visibility 0.3s, transform 0.2s;
    }
    .back-top.show { opacity: 1; visibility: visible; }
    .back-top:hover { transform: translateY(-3px); border-color: var(--brand); }

    /* 滚动渐入 */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease, transform 0.6s ease;
      will-change: opacity, transform;
    }
    .reveal.visible { opacity: 1; transform: translateY(0); }

    /* 响应式 */
    @media (max-width: 960px) {
      .nav-links { display: none; }
      .menu-toggle { display: block; }
      .header-cta .btn-outline { display: none; }
      .about-layout { grid-template-columns: 1fr; gap: 32px; }
      .contact-layout { grid-template-columns: 1fr; gap: 32px; }
      .steps-row { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 640px) {
      h1 { font-size: 1.9rem; }
      h2 { font-size: 1.5rem; }
      section { padding: 48px 0; }
      .hero { padding: 56px 0 48px; }
      .hero-stats { gap: 20px 32px; }
      .stat-item .num { font-size: 1.4rem; }
      .steps-row { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; gap: 24px; }
      .metrics-band { padding: 32px 20px; gap: 20px; }
      .form-card { padding: 24px 20px; }
      .float-service { right: 14px; bottom: 80px; }
      .back-top { right: 14px; bottom: 20px; }
      .compare-table th, .compare-table td { padding: 12px 14px; font-size: 0.85rem; }
    }
    @media (prefers-reduced-motion: reduce) {
      .reveal { opacity: 1; transform: none; transition: none; }
      * { animation-duration: 0.01ms !important; }
    }
    .mobile-nav {
      display: none;
      flex-direction: column;
      gap: 4px;
      padding: 16px 24px 20px;
      background: #fff;
      border-bottom: 1px solid var(--border);
    }
    .mobile-nav.open { display: flex; }
    .mobile-nav a {
      padding: 10px 0;
      font-size: 0.95rem;
      color: var(--ink-soft);
      border-bottom: 1px solid var(--bg-soft);
    }
    .mobile-nav a:last-child { border-bottom: none; }
    .mobile-nav .btn { margin-top: 8px; text-align: center; }