:root {
      --primary: #0ca654;
      --primary-hover: #088a44;
      --primary-light: #e8f8f0;
      --accent-green: #00c853;
      --text-main: #1d2129;
      --text-muted: #4e5969;
      --text-sub: #86909c;
      --bg-page: #f6fbf8;
      --bg-surface: #ffffff;
      --border-color: #d8edd5;
      --shadow-sm: 0 2px 8px rgba(12, 166, 84, 0.06);
      --shadow-md: 0 8px 24px rgba(12, 166, 84, 0.1);
      --shadow-lg: 0 16px 36px rgba(12, 166, 84, 0.14);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-family);
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s ease;
    }

    /* 统一主居中容器 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      transition: box-shadow 0.3s ease;
    }

    .site-header.scrolled {
      box-shadow: var(--shadow-sm);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-wrap img {
      height: 40px;
      width: auto;
      display: block;
    }

    .brand-text {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
    }

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

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-nav-primary {
      background: linear-gradient(135deg, #0ca654 0%, #00c853 100%);
      color: #ffffff !important;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(12, 166, 84, 0.24);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      display: inline-block;
    }

    .btn-nav-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(12, 166, 84, 0.32);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: 0.3s;
    }

    /* 首屏 Hero - 无图片純视觉 */
    .hero-section {
      padding: 80px 0 60px;
      background: radial-gradient(circle at 50% 10%, #e3f8ec 0%, #f6fbf8 60%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-content {
      text-align: center;
      max-width: 860px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: var(--primary-light);
      border: 1px solid var(--border-color);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 30px;
      margin-bottom: 24px;
    }

    .hero-badge::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--accent-green);
      box-shadow: 0 0 8px var(--accent-green);
    }

    .hero-title {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 800;
      color: #0f3d23;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title span {
      color: var(--primary);
      position: relative;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 36px;
      line-height: 1.7;
    }

    .hero-btns {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-main {
      background: linear-gradient(135deg, #0ca654 0%, #00c853 100%);
      color: #ffffff;
      padding: 14px 34px;
      border-radius: var(--radius-md);
      font-size: 1.05rem;
      font-weight: 700;
      box-shadow: 0 6px 20px rgba(12, 166, 84, 0.3);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 26px rgba(12, 166, 84, 0.4);
      color: #ffffff;
    }

    .btn-hero-sub {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      padding: 14px 28px;
      border-radius: var(--radius-md);
      font-size: 1.05rem;
      font-weight: 600;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

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

    /* 纯 CSS 科技感指标栏 - 替代首屏图片 */
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .metric-item {
      text-align: center;
      border-right: 1px solid var(--border-color);
    }

    .metric-item:last-child {
      border-right: none;
    }

    .metric-val {
      font-size: 1.9rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
      font-feature-settings: "tnum";
    }

    .metric-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 通用分块基础 */
    .section-block {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }

    .section-tag {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 10px;
      display: inline-block;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: #143823;
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 平台介绍板块 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .about-card h3 {
      font-size: 1.4rem;
      color: #123d24;
      margin-bottom: 16px;
    }

    .about-card p {
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.7;
    }

    .about-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .about-feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .about-feature-list li::before {
      content: "✔";
      color: var(--primary);
      font-weight: bold;
    }

    .model-pills-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .model-pills-wrap h4 {
      font-size: 1.1rem;
      margin-bottom: 16px;
      color: #123d24;
    }

    .pills-container {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-pill {
      background: var(--primary-light);
      color: var(--primary);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 600;
      transition: all 0.2s;
    }

    .model-pill:hover {
      background: var(--primary);
      color: #ffffff;
    }

    /* 场景卡片矩阵网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .card-badge {
      display: inline-block;
      align-self: flex-start;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
    }

    .service-card h3 {
      font-size: 1.15rem;
      color: #123d24;
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
      margin-bottom: 14px;
    }

    .card-footer-link {
      font-size: 0.85rem;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 案例中心图文展示 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .case-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .case-media-box {
      width: 100%;
      height: 200px;
      background-color: #eaf4ed;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-media-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s;
    }

    .case-card:hover .case-media-box img {
      transform: scale(1.03);
    }

    .case-body {
      padding: 20px;
    }

    .case-body h4 {
      font-size: 1.1rem;
      color: #123d24;
      margin-bottom: 8px;
    }

    .case-body p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 流程步骤 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .step-num {
      width: 44px;
      height: 44px;
      background: var(--primary-light);
      color: var(--primary);
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      font-weight: 800;
      margin: 0 auto 16px;
    }

    .step-card h4 {
      font-size: 1.05rem;
      color: #123d24;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 对比评测表格与评分卡 */
    .eval-overview-card {
      background: linear-gradient(135deg, #0ca654 0%, #00c853 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px;
      margin-bottom: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }

    .eval-score-num {
      font-size: 3.5rem;
      font-weight: 900;
      line-height: 1;
    }

    .eval-score-num span {
      font-size: 1.5rem;
      font-weight: 500;
      opacity: 0.9;
    }

    .eval-stars {
      color: #ffeb3b;
      font-size: 1.3rem;
      margin-top: 6px;
    }

    .table-container {
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    .comparison-table th {
      background-color: var(--primary-light);
      color: #0f3d23;
      font-weight: 700;
    }

    .comparison-table tr:hover {
      background-color: #fcfefc;
    }

    .cell-highlight {
      font-weight: 700;
      color: var(--primary);
    }

    /* 需求匹配与表单 */
    .form-layout-wrap {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .form-info h3 {
      font-size: 1.5rem;
      color: #123d24;
      margin-bottom: 16px;
    }

    .form-info p {
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.6;
    }

    .info-item {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      color: var(--text-main);
      font-size: 0.95rem;
    }

    .info-item-icon {
      width: 32px;
      height: 32px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }

    .custom-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

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

    .form-group label {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-control {
      padding: 12px 14px;
      border: 1px solid #cce5d4;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      font-family: inherit;
      background: #fafdfb;
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(12, 166, 84, 0.12);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }

    .btn-submit {
      background: linear-gradient(135deg, #0ca654 0%, #00c853 100%);
      color: #ffffff;
      padding: 14px;
      border: none;
      border-radius: var(--radius-sm);
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.2s;
      box-shadow: 0 4px 12px rgba(12, 166, 84, 0.25);
    }

    .btn-submit:hover {
      background: #088a44;
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(12, 166, 84, 0.35);
    }

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

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: #ff9800;
      font-size: 0.9rem;
      margin-bottom: 12px;
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 20px;
      font-style: italic;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f0f7f2;
      padding-top: 14px;
    }

    .user-avatar {
      width: 40px;
      height: 40px;
      background: var(--primary-light);
      color: var(--primary);
      font-weight: 700;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .user-name {
      font-weight: 600;
      font-size: 0.92rem;
      color: #123d24;
    }

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

    /* FAQ 手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 600;
      font-size: 1rem;
      color: #123d24;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-question::after {
      content: "+";
      font-size: 1.3rem;
      color: var(--primary);
      transition: transform 0.25s;
    }

    .faq-item.active .faq-question::after {
      content: "-";
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background-color: #fbfdfc;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.65;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 220px;
      padding: 0 24px 18px;
    }

    /* 行业资讯与短代码文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 30px;
    }

    .article-main-box,
    .article-links-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .article-main-box h3,
    .article-links-box h3 {
      font-size: 1.15rem;
      color: #123d24;
      margin-bottom: 16px;
      border-bottom: 2px solid var(--primary-light);
      padding-bottom: 8px;
    }

    .article-link-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-link-list li a {
      font-size: 0.92rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 8px 10px;
      border-radius: var(--radius-sm);
      background: #fafdfb;
      transition: all 0.2s;
    }

    .article-link-list li a:hover {
      background: var(--primary-light);
      color: var(--primary);
      padding-left: 14px;
    }

    /* 轮播图/宣传图卡片 */
    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .banner-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #ffffff;
    }

    .banner-item img {
      width: 100%;
      height: 160px;
      object-fit: cover;
      display: block;
    }

    /* 底部通用规范 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      color: var(--text-muted);
    }

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

    .footer-brand p {
      font-size: 0.9rem;
      margin-top: 12px;
      line-height: 1.6;
      color: var(--text-muted);
    }

    .footer-col h4 {
      font-size: 1rem;
      color: #123d24;
      margin-bottom: 16px;
      font-weight: 700;
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.88rem;
    }

    .footer-col ul a {
      color: var(--text-muted);
    }

    .footer-col ul a:hover {
      color: var(--primary);
    }

    .footer-qr-wrap {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }

    .footer-qr-wrap img {
      width: 110px;
      height: 110px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 4px;
      background: #ffffff;
    }

    .footer-links-bar {
      border-top: 1px solid #edf5f0;
      padding: 20px 0;
      font-size: 0.85rem;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
    }

    .footer-links-bar span {
      font-weight: 600;
      color: #123d24;
    }

    .footer-links-bar a {
      color: var(--text-sub);
    }

    .footer-links-bar a:hover {
      color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid #edf5f0;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* 浮动在线入口与返回顶部 */
    .float-widgets {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      color: var(--primary);
      font-size: 1.1rem;
      transition: all 0.2s;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-2px);
    }

    /* 响应式样式适配 */
    @media (max-width: 992px) {
      .services-grid,
      .cases-grid,
      .reviews-grid,
      .banner-gallery {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline,
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid,
      .form-layout-wrap,
      .articles-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-title {
        font-size: 2.1rem;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .services-grid,
      .cases-grid,
      .reviews-grid,
      .banner-gallery,
      .process-timeline,
      .hero-metrics {
        grid-template-columns: 1fr;
      }
      .metric-item {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 12px;
      }
      .metric-item:last-child {
        border-bottom: none;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 1.75rem;
      }
    }