:root {
      --primary: #10b981;
      --primary-dark: #059669;
      --primary-light: #d1fae5;
      --mint-bg: #f2fbf7;
      --mint-card: #ffffff;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
      --accent-green: #34d399;
      --shadow-sm: 0 2px 8px rgba(16, 185, 129, 0.06);
      --shadow-md: 0 10px 25px -5px rgba(16, 185, 129, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 20px 30px -10px rgba(5, 150, 105, 0.15);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.28s ease-in-out;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--mint-bg);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(16, 185, 129, 0.15);
      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-logo-container {
      display: flex;
      align-items: center;
      max-height: 44px;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #065f46;
      letter-spacing: -0.5px;
    }

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

    .nav-links li a {
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: #334155;
      border-radius: var(--radius-sm);
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, #10b981 0%, #059669 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #059669 0%, #047857 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(16, 185, 129, 0.45);
      color: #ffffff;
    }

    .btn-secondary {
      background: #ecfdf5;
      color: #065f46;
      border-color: #a7f3d0;
    }

    .btn-secondary:hover {
      background: #d1fae5;
      color: #047857;
      transform: translateY(-2px);
    }

    .btn-lg {
      padding: 14px 32px;
      font-size: 1.1rem;
      border-radius: var(--radius-md);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.6rem;
      color: #0f172a;
      cursor: pointer;
    }

    /* 首屏 Hero（无图片） */
    .hero-section {
      position: relative;
      padding: 85px 0 75px;
      background: radial-gradient(circle at 80% 20%, rgba(209, 250, 229, 0.7) 0%, rgba(242, 251, 247, 0) 60%),
                  radial-gradient(circle at 20% 80%, rgba(167, 243, 208, 0.5) 0%, rgba(242, 251, 247, 0) 50%);
      border-bottom: 1px solid rgba(16, 185, 129, 0.1);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background-color: #d1fae5;
      border: 1px solid #6ee7b7;
      border-radius: 30px;
      color: #065f46;
      font-size: 0.88rem;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .hero-tag-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #10b981;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
    }

    .hero-h1 {
      font-size: 2.55rem;
      line-height: 1.28;
      font-weight: 800;
      color: #0f172a;
      letter-spacing: -0.8px;
      margin-bottom: 20px;
    }

    .hero-h1 span {
      color: var(--primary-dark);
      background: linear-gradient(120deg, #059669, #10b981);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.12rem;
      color: var(--text-muted);
      margin-bottom: 32px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }

    .hero-highlights {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      padding-top: 20px;
      border-top: 1px dashed #cbd5e1;
    }

    .hero-hl-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.92rem;
      color: #334155;
      font-weight: 500;
    }

    .hero-hl-icon {
      color: var(--primary);
      font-weight: bold;
    }

    .hero-visual-card {
      background: #ffffff;
      border: 1px solid #a7f3d0;
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .visual-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px solid #f1f5f9;
    }

    .status-badge {
      background: #ecfdf5;
      color: #047857;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 600;
      border: 1px solid #a7f3d0;
    }

    .metric-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 24px;
    }

    .metric-box {
      background: #f8fafc;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
    }

    .metric-box-val {
      font-size: 1.6rem;
      font-weight: 800;
      color: #065f46;
      margin-bottom: 4px;
    }

    .metric-box-label {
      font-size: 0.82rem;
      color: #64748b;
    }

    .feature-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .feature-chip {
      background: #f0fdf4;
      color: #166534;
      border: 1px solid #bbf7d0;
      padding: 6px 12px;
      border-radius: 8px;
      font-size: 0.8rem;
      font-weight: 500;
    }

    /* 通用Section */
    .section {
      padding: 70px 0;
      position: relative;
    }

    .section-alt {
      background-color: #ffffff;
      border-top: 1px solid rgba(16, 185, 129, 0.08);
      border-bottom: 1px solid rgba(16, 185, 129, 0.08);
    }

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

    .section-subtitle {
      font-size: 0.88rem;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--primary-dark);
      font-weight: 700;
      margin-bottom: 8px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: #0f172a;
      line-height: 1.35;
      margin-bottom: 14px;
    }

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

    /* 平台矩阵卡片 */
    .models-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      margin-bottom: 40px;
    }

    .model-tag {
      background: #ffffff;
      border: 1px solid #d1fae5;
      color: #065f46;
      padding: 8px 18px;
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 600;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .model-tag:hover {
      background: #10b981;
      color: #ffffff;
      border-color: #10b981;
      transform: translateY(-2px);
    }

    /* 服务场景网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 22px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      border-color: #6ee7b7;
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .service-icon-box {
      width: 46px;
      height: 46px;
      background: #ecfdf5;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #059669;
      font-weight: bold;
      font-size: 1.2rem;
      margin-bottom: 16px;
    }

    .service-card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 10px;
    }

    .service-card-desc {
      font-size: 0.9rem;
      color: #64748b;
      line-height: 1.6;
      flex-grow: 1;
    }

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

    .step-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #d1fae5;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-num {
      width: 36px;
      height: 36px;
      background: #10b981;
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: #64748b;
    }

    /* 素材画廊区 */
    .gallery-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-top: 30px;
    }

    .media-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }

    .media-card-img {
      width: 100%;
      height: auto;
      display: block;
    }

    .media-card-body {
      padding: 18px;
    }

    .media-card-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 6px;
    }

    .media-card-desc {
      font-size: 0.88rem;
      color: #64748b;
    }

    /* 宣传图展示条 */
    .banner-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }

    .banner-item {
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid #e2e8f0;
      background: #ffffff;
    }

    .banner-item img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 对比评测模块 */
    .review-score-banner {
      background: linear-gradient(135deg, #065f46 0%, #047857 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 36px;
      box-shadow: var(--shadow-lg);
    }

    .score-left h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .score-left p {
      color: #a7f3d0;
      font-size: 1rem;
    }

    .score-right {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .star-rating {
      color: #facc15;
      font-size: 1.8rem;
      letter-spacing: 4px;
    }

    .score-badge {
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.3);
      padding: 10px 24px;
      border-radius: var(--radius-md);
      text-align: center;
    }

    .score-badge .val {
      font-size: 2.2rem;
      font-weight: 900;
      line-height: 1;
      color: #ffffff;
    }

    .score-badge .max {
      font-size: 0.85rem;
      color: #a7f3d0;
    }

    .comparison-table-wrap {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }

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

    .comp-table th, .comp-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
      font-size: 0.92rem;
    }

    .comp-table th {
      background: #f8fafc;
      color: #334155;
      font-weight: 700;
    }

    .comp-table th.highlight-col, .comp-table td.highlight-col {
      background: #f0fdf4;
      color: #065f46;
      font-weight: 600;
      border-left: 2px solid #10b981;
      border-right: 2px solid #10b981;
    }

    /* 需求匹配与表单 */
    .form-grid-layout {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      align-items: start;
    }

    .form-info-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid #d1fae5;
      box-shadow: var(--shadow-sm);
    }

    .form-info-card h3 {
      font-size: 1.35rem;
      font-weight: 700;
      color: #065f46;
      margin-bottom: 16px;
    }

    .info-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 24px;
    }

    .info-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.92rem;
      color: #475569;
    }

    .info-list-dot {
      color: var(--primary);
      font-weight: bold;
    }

    .qr-box {
      text-align: center;
      padding: 16px;
      background: #f8fafc;
      border-radius: var(--radius-sm);
      border: 1px dashed #cbd5e1;
    }

    .qr-box img {
      max-width: 140px;
      height: auto;
      border-radius: 6px;
      margin-bottom: 8px;
    }

    .form-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 32px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-md);
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: #334155;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 11px 14px;
      font-size: 0.92rem;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      background: #ffffff;
      color: var(--text-main);
      transition: var(--transition);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
    }

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

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .review-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-content {
      font-size: 0.92rem;
      color: #475569;
      line-height: 1.65;
      margin-bottom: 16px;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 12px;
    }

    .user-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #d1fae5;
      color: #065f46;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }

    .user-meta-name {
      font-size: 0.92rem;
      font-weight: 700;
      color: #1e293b;
    }

    .user-meta-role {
      font-size: 0.8rem;
      color: #64748b;
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      padding: 18px 22px;
      font-weight: 700;
      font-size: 1rem;
      color: #1e293b;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-question:hover {
      background-color: #f8fafc;
      color: var(--primary-dark);
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      font-size: 0.92rem;
      color: #475569;
      line-height: 1.7;
      border-top: 1px solid #f8fafc;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

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

    /* 最新文章与外链区 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 16px;
      margin-bottom: 30px;
    }

    .article-card {
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .article-card:hover {
      border-color: #10b981;
      transform: translateY(-2px);
    }

    .article-card a {
      font-size: 0.9rem;
      font-weight: 600;
      color: #1e293b;
      display: block;
    }

    .article-card a:hover {
      color: var(--primary-dark);
    }

    /* 友情链接与Footer */
    .site-footer {
      background: #0f172a;
      color: #cbd5e1;
      padding: 60px 0 30px;
      border-top: 4px solid #10b981;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.25rem;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .footer-col h5 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 16px;
      font-weight: 600;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links li a {
      color: #94a3b8;
      font-size: 0.88rem;
    }

    .footer-links li a:hover {
      color: #34d399;
    }

    .footer-bottom {
      border-top: 1px solid #334155;
      padding-top: 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #64748b;
      gap: 16px;
    }

    .friend-links-box {
      margin-bottom: 30px;
      padding: 16px 20px;
      background: rgba(255, 255, 255, 0.03);
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .friend-links-box span {
      color: #94a3b8;
      font-size: 0.85rem;
      margin-right: 12px;
      font-weight: 600;
    }

    .friend-links-box a {
      color: #cbd5e1;
      font-size: 0.85rem;
      margin-right: 16px;
      display: inline-block;
    }

    .friend-links-box a:hover {
      color: #34d399;
    }

    /* 悬浮客服挂件 */
    .float-contact {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background: #10b981;
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
      cursor: pointer;
      font-size: 1.1rem;
      transition: var(--transition);
      border: none;
    }

    .float-btn:hover {
      background: #059669;
      transform: scale(1.08);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .workflow-timeline {
        grid-template-columns: 1fr 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .form-grid-layout {
        grid-template-columns: 1fr;
      }
      .banner-strip {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links, .nav-actions .btn-secondary {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        padding: 20px;
        border-bottom: 1px solid #e2e8f0;
        box-shadow: var(--shadow-md);
      }
      .nav-links.active li {
        width: 100%;
      }
      .nav-links.active li a {
        display: block;
        padding: 10px;
      }
      .hero-h1 {
        font-size: 2rem;
      }
      .workflow-timeline {
        grid-template-columns: 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .gallery-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .score-right {
        margin-top: 16px;
      }
    }