/* Reset & Base */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    :root {
      --primary: #00c853; /* 鲜绿 */
      --primary-dark: #009624;
      --primary-light: #e8f5e9;
      --secondary: #1a237e;
      --text-dark: #1f2937;
      --text-muted: #4b5563;
      --bg-light: #f5f9f6;
      --card-bg: #ffffff;
      --border-color: #d1e7dd;
      --shadow-sm: 0 4px 12px rgba(0, 200, 83, 0.06);
      --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.06);
      --shadow-green: 0 8px 20px rgba(0, 200, 83, 0.18);
      --radius: 20px;
      --radius-sm: 12px;
      --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
      --container-width: 1280px;
      --container-padding: 24px;
    }

    body {
      font-family: var(--font);
      color: var(--text-dark);
      background-color: var(--bg-light);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      background-image: radial-gradient(circle at 20% 30%, rgba(0, 200, 83, 0.04) 0%, transparent 40%),
                        radial-gradient(circle at 80% 70%, rgba(0, 200, 83, 0.03) 0%, transparent 40%);
      background-attachment: fixed;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    ul {
      list-style: none;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 var(--container-padding);
      width: 100%;
    }

    /* 按钮 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      border-radius: 60px;
      font-weight: 600;
      font-size: 1rem;
      transition: all 0.25s ease;
      cursor: pointer;
      border: none;
      gap: 8px;
      white-space: nowrap;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #ffffff;
      box-shadow: var(--shadow-green);
    }

    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 12px 24px rgba(0, 200, 83, 0.3);
    }

    .btn-outline {
      background-color: transparent;
      color: var(--text-dark);
      border: 1.5px solid var(--border-color);
    }

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

    .btn-sm {
      padding: 8px 20px;
      font-size: 0.9rem;
    }

    /* 导航 */
    .navbar {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 200, 83, 0.15);
      transition: all 0.3s;
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 72px;
      gap: 16px;
      flex-wrap: wrap;
      padding: 8px 0;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.3rem;
      color: var(--text-dark);
      flex-shrink: 0;
    }

    .brand img {
      height: 36px;
      width: auto;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* 按需求设置 gap: 0 */
      flex-wrap: wrap;
      list-style: none;
    }

    .nav-links li {
      margin: 0 2px;
    }

    .nav-links a {
      display: block;
      padding: 8px 12px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-dark);
      border-radius: 30px;
      transition: background 0.2s, color 0.2s;
      white-space: nowrap;
    }

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

    .nav-cta {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 2.5px;
      background-color: var(--text-dark);
      margin: 6px 0;
      border-radius: 4px;
      transition: all 0.3s;
    }

    /* 首屏 Hero - 无图片 */
    .hero {
      padding: 60px 0 80px;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: -30%;
      right: -10%;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(0, 200, 83, 0.12) 0%, transparent 70%);
      border-radius: 50%;
      z-index: 0;
      animation: floatGlow 12s infinite alternate ease-in-out;
    }

    .hero::after {
      content: '';
      position: absolute;
      bottom: -20%;
      left: -5%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(0, 150, 36, 0.06) 0%, transparent 70%);
      border-radius: 50%;
      z-index: 0;
      animation: floatGlow 10s infinite alternate-reverse;
    }

    @keyframes floatGlow {
      0% { transform: translate(0, 0) scale(1); }
      100% { transform: translate(30px, 20px) scale(1.1); }
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      position: relative;
      z-index: 2;
    }

    .hero-content h1 {
      font-size: 3.2rem;
      line-height: 1.2;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 24px;
      color: #0a2e1a;
    }

    .hero-content h1 span {
      color: var(--primary);
      position: relative;
      display: inline-block;
    }

    .hero-content p {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 32px;
      max-width: 540px;
    }

    .hero-buttons {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 32px;
    }

    .hero-badges {
      display: flex;
      gap: 24px;
      flex-wrap: wrap;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .hero-badges span {
      display: flex;
      align-items: center;
      gap: 6px;
      font-weight: 500;
    }

    .hero-badges svg {
      color: var(--primary);
    }

    .hero-visual {
      display: flex;
      flex-direction: column;
      gap: 20px;
      background: rgba(255, 255, 255, 0.6);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      border-radius: 32px;
      padding: 32px 28px;
      border: 1px solid rgba(0, 200, 83, 0.2);
      box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.08);
      animation: cardIn 0.8s ease-out;
    }

    @keyframes cardIn {
      from { opacity: 0; transform: translateY(16px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .visual-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      text-align: center;
    }

    .visual-stat-item {
      background: #ffffff;
      border-radius: 16px;
      padding: 16px 8px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
    }

    .visual-stat-item .num {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.2;
    }

    .visual-stat-item .label {
      font-size: 0.75rem;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .visual-tagcloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
    }

    .visual-tagcloud span {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 40px;
      font-size: 0.85rem;
      color: var(--text-dark);
      transition: all 0.2s;
    }

    .visual-tagcloud span:hover {
      border-color: var(--primary);
      background: var(--primary-light);
    }

    /* 通用 Section */
    .section {
      padding: 72px 0;
      position: relative;
    }

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

    .section-header h2 {
      font-size: 2.2rem;
      font-weight: 700;
      color: #0a2e1a;
      margin-bottom: 12px;
      letter-spacing: -0.01em;
    }

    .section-header p {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }

    .section-header.light h2 {
      color: #ffffff;
    }

    .section-header.light p {
      color: rgba(255, 255, 255, 0.85);
    }

    /* 卡片通用 */
    .card {
      background: var(--card-bg);
      border-radius: var(--radius);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      border: 1px solid rgba(0, 200, 83, 0.12);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

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

    /* 数据指标 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .metric-card {
      text-align: center;
      padding: 32px 20px;
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      transition: all 0.25s;
    }

    .metric-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-green);
    }

    .metric-card .metric-value {
      font-size: 2.4rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.2;
      margin-bottom: 6px;
    }

    .metric-card .metric-label {
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    /* 服务能力卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .service-card {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 28px 24px;
      border: 1px solid var(--border-color);
      transition: all 0.25s;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .service-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-green);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-dark);
    }

    .service-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-dark);
    }

    .service-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 流程步骤 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      counter-reset: step;
    }

    .step-item {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 28px 20px;
      text-align: center;
      border: 1px solid var(--border-color);
      position: relative;
      transition: all 0.25s;
    }

    .step-item:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-green);
      transform: translateY(-3px);
    }

    .step-number {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      font-weight: 700;
      font-size: 1.2rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      box-shadow: 0 6px 14px rgba(0, 200, 83, 0.3);
    }

    .step-item h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-dark);
    }

    .step-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 对比表格 */
    .comparison-table-wrapper {
      overflow-x: auto;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      background: #ffffff;
      box-shadow: var(--shadow-sm);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 720px;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 16px 24px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
    }

    .comparison-table th {
      background: var(--primary-light);
      color: var(--primary-dark);
      font-weight: 700;
      font-size: 0.95rem;
    }

    .comparison-table tr:last-child td {
      border-bottom: none;
    }

    .comparison-table td:first-child {
      font-weight: 600;
      color: var(--text-dark);
    }

    .rating-stars {
      color: #fbbf24;
      letter-spacing: 2px;
      font-size: 1.1rem;
      display: inline-flex;
      align-items: center;
      gap: 2px;
    }

    .rating-score {
      font-weight: 700;
      color: var(--primary-dark);
      font-size: 1.1rem;
    }

    /* FAQ 折叠 */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px 28px;
    }

    .faq-item {
      background: #ffffff;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: all 0.25s;
    }

    .faq-item.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 22px;
      cursor: pointer;
      font-weight: 600;
      color: var(--text-dark);
      gap: 12px;
    }

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

    .faq-toggle {
      font-size: 1.4rem;
      line-height: 1;
      color: var(--primary);
      transition: transform 0.25s;
      flex-shrink: 0;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.25s;
      padding: 0 22px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 22px 18px;
    }

    /* 评论卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 28px 24px;
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      gap: 14px;
      transition: all 0.25s;
    }

    .review-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .review-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary-dark);
      font-size: 1.1rem;
    }

    .review-stars {
      color: #fbbf24;
      font-size: 0.95rem;
      letter-spacing: 2px;
    }

    .review-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      flex-grow: 1;
    }

    .review-author {
      font-weight: 600;
      color: var(--text-dark);
      font-size: 0.9rem;
    }

    .review-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 表单 */
    .form-card {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group.full-width {
      grid-column: 1 / -1;
    }

    .form-group label {
      font-weight: 600;
      font-size: 0.9rem;
      color: var(--text-dark);
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
      padding: 12px 16px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      font-family: var(--font);
      font-size: 0.95rem;
      background: var(--bg-light);
      transition: border 0.2s, box-shadow 0.2s;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 200, 83, 0.15);
    }

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

    .form-submit {
      margin-top: 8px;
      grid-column: 1 / -1;
    }

    /* 页脚 */
    .footer {
      background: #0a2e1a;
      color: #e2f0e7;
      padding: 56px 0 24px;
      margin-top: 40px;
    }

    .footer a {
      color: #c8e6d2;
      transition: color 0.2s;
    }

    .footer a:hover {
      color: #ffffff;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand img {
      height: 36px;
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: #b0d4bd;
      line-height: 1.7;
      max-width: 260px;
    }

    .footer h4 {
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
    }

    .footer-links li {
      margin-bottom: 10px;
      font-size: 0.9rem;
    }

    .footer-contact p {
      font-size: 0.9rem;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: #9bbfaa;
    }

    /* 浮动客服 */
    .float-service {
      position: fixed;
      bottom: 30px;
      right: 30px;
      z-index: 200;
      display: flex;
      flex-direction: column;
      gap: 12px;
      align-items: flex-end;
    }

    .float-service-btn {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 20px rgba(0, 200, 83, 0.4);
      cursor: pointer;
      transition: all 0.25s;
      border: none;
    }

    .float-service-btn:hover {
      background: var(--primary-dark);
      transform: scale(1.05);
    }

    .float-qr-popup {
      background: #ffffff;
      border-radius: 16px;
      padding: 16px;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      display: none;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      width: 160px;
    }

    .float-qr-popup.show {
      display: flex;
    }

    .float-qr-popup img {
      width: 100%;
      border-radius: 12px;
    }

    .float-qr-popup p {
      font-size: 0.8rem;
      color: var(--text-muted);
      text-align: center;
    }

    /* 返回顶部 */
    .back-to-top {
      position: fixed;
      bottom: 100px;
      right: 30px;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary-dark);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-sm);
      cursor: pointer;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s;
      z-index: 200;
    }

    .back-to-top.show {
      opacity: 1;
      visibility: visible;
    }

    .back-to-top:hover {
      background: var(--primary-light);
      border-color: var(--primary);
    }

    /* 滚动动画 */
    .fade-up {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

    .fade-up.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* 响应式 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .hero-content h1 {
        font-size: 2.6rem;
      }

      .hero-visual {
        max-width: 560px;
        margin: 0 auto;
      }

      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      :root {
        --container-padding: 18px;
      }

      .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        padding: 12px 0 8px;
        gap: 4px;
      }

      .nav-links.active {
        display: flex;
      }

      .nav-links li {
        margin: 0;
      }

      .nav-links a {
        padding: 10px 16px;
        border-radius: 10px;
      }

      .mobile-menu-btn {
        display: block;
      }

      .nav-cta {
        margin-left: auto;
      }

      .hero-content h1 {
        font-size: 2rem;
      }

      .hero-content p {
        font-size: 1rem;
      }

      .section {
        padding: 48px 0;
      }

      .section-header h2 {
        font-size: 1.7rem;
      }

      .metrics-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }

      .services-grid {
        grid-template-columns: 1fr;
      }

      .steps-grid {
        grid-template-columns: 1fr;
      }

      .reviews-grid {
        grid-template-columns: 1fr;
      }

      .faq-grid {
        grid-template-columns: 1fr;
      }

      .form-grid {
        grid-template-columns: 1fr;
      }

      .form-card {
        padding: 24px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }

      .float-service {
        bottom: 20px;
        right: 20px;
      }

      .back-to-top {
        bottom: 84px;
        right: 20px;
      }

      .hero-visual {
        padding: 24px 18px;
      }
    }

    @media (max-width: 480px) {
      .hero-content h1 {
        font-size: 1.7rem;
      }

      .metrics-grid {
        grid-template-columns: 1fr;
      }

      .visual-stats {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 8px;
      }

      .visual-stat-item .num {
        font-size: 1.3rem;
      }

      .visual-stat-item .label {
        font-size: 0.65rem;
      }

      .hero-buttons .btn {
        width: 100%;
      }
    }

    /* 友情链接区 */
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px 24px;
      justify-content: center;
      align-items: center;
      margin-top: 32px;
      padding: 20px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
    }

    .friend-links a {
      color: #c8e6d2;
      font-size: 0.85rem;
      transition: color 0.2s;
    }

    .friend-links a:hover {
      color: #ffffff;
    }

    .footer .friend-links {
      justify-content: flex-start;
      margin-top: 16px;
      padding: 16px 0 0;
      border-top-color: rgba(255, 255, 255, 0.08);
    }