:root {
      --primary: #0b8379;
      --primary-light: #12a598;
      --primary-dark: #075851;
      --accent: #2dd4bf;
      --bg-main: #f3f8f8;
      --bg-card: #ffffff;
      --text-main: #132423;
      --text-muted: #4e6361;
      --border-color: #d1e2e0;
      --shadow-sm: 0 4px 12px rgba(11, 131, 121, 0.05);
      --shadow-md: 0 10px 24px rgba(11, 131, 121, 0.08);
      --shadow-lg: 0 16px 36px rgba(11, 131, 121, 0.12);
      --container-width: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

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

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

    .container {
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .section-padding {
      padding-top: 72px;
      padding-bottom: 72px;
    }

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

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background-color: #e0f2f1;
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 600;
      border-radius: 999px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 28px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

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

    .ai-page-logo {
      height: 38px;
      width: auto;
      object-fit: contain;
    }

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-dark);
    }

    .nav-links {
      display: flex;
      gap: 0;
      align-items: center;
    }

    .nav-links a {
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 6px;
    }

    .nav-links a:hover {
      color: var(--primary);
      background-color: #f0fdfa;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(11, 131, 121, 0.25);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(11, 131, 121, 0.35);
    }

    .btn-outline {
      background: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background-color: #e6fffa;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
    }

    /* 首屏 Hero (无图，纯CSS渐变青科技感) */
    .hero-section {
      padding: 96px 0 80px;
      background: radial-gradient(circle at 80% 20%, rgba(45, 212, 191, 0.15) 0%, transparent 50%),
                  radial-gradient(circle at 20% 80%, rgba(11, 131, 121, 0.12) 0%, transparent 60%),
                  linear-gradient(180deg, #ffffff 0%, var(--bg-main) 100%);
      border-bottom: 1px solid var(--border-color);
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      background: #ccfbf1;
      border: 1px solid #99f6e4;
      border-radius: 30px;
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 40px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }

    .hero-title span {
      background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 17px;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 54px;
      flex-wrap: wrap;
    }

    .hero-cta-group .btn {
      padding: 13px 30px;
      font-size: 16px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1040px;
      margin: 0 auto;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px 16px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease;
    }

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

    .metric-val {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 平台介绍 */
    .about-card {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .about-content h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .about-content p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.75;
    }

    .about-features {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .about-features li {
      font-size: 14px;
      color: var(--text-main);
      font-weight: 500;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .about-features li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 800;
    }

    .about-extra {
      background: #f0fdfa;
      border: 1px dashed var(--accent);
      border-radius: 12px;
      padding: 24px;
    }

    .about-extra h4 {
      font-size: 16px;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }

    .model-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-pill {
      background: #ffffff;
      border: 1px solid #ccfbf1;
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 12px;
      color: var(--text-muted);
    }

    /* AIGC服务 & 一站式制作网格 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border-radius: 14px;
      border: 1px solid var(--border-color);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: var(--accent);
    }

    .service-header {
      margin-bottom: 14px;
    }

    .service-icon {
      width: 44px;
      height: 44px;
      background: #e6fffa;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 800;
      font-size: 18px;
      margin-bottom: 16px;
    }

    .service-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .service-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-foot-tag {
      font-size: 12px;
      color: var(--primary);
      background: #f0fdfa;
      padding: 4px 10px;
      border-radius: 6px;
      align-self: flex-start;
      font-weight: 600;
    }

    /* 行业方案与图文版块 */
    .industry-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
      margin-bottom: 36px;
    }

    .industry-desc h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 14px;
      color: var(--text-main);
    }

    .industry-desc p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.7;
    }

    .industry-img-box {
      border-radius: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      background: #ffffff;
    }

    .industry-img-box img {
      width: 100%;
      display: block;
      transition: transform 0.3s ease;
    }

    .industry-img-box:hover img {
      transform: scale(1.02);
    }

    /* 标准流程时间线 */
    .timeline-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .timeline-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .timeline-step {
      font-size: 12px;
      font-weight: 800;
      color: var(--primary);
      background: #e6fffa;
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
    }

    .timeline-item h4 {
      font-size: 16px;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .timeline-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测模块 */
    .eval-box {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .eval-score-banner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: linear-gradient(135deg, #f0fdfa 0%, #e6fffa 100%);
      border: 1px solid #99f6e4;
      border-radius: 12px;
      padding: 24px 32px;
      margin-bottom: 32px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .eval-score-text h3 {
      font-size: 20px;
      color: var(--primary-dark);
      margin-bottom: 6px;
    }

    .eval-score-text p {
      font-size: 14px;
      color: var(--text-muted);
    }

    .eval-digits {
      display: flex;
      align-items: baseline;
      gap: 12px;
    }

    .eval-score-num {
      font-size: 42px;
      font-weight: 900;
      color: var(--primary);
    }

    .eval-stars {
      color: #f59e0b;
      font-size: 20px;
      letter-spacing: 2px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

    .compare-table th, .compare-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background-color: #f8fafc;
      color: var(--text-main);
      font-weight: 700;
    }

    .compare-table tr:hover td {
      background-color: #f0fdfa;
    }

    .badge-win {
      color: #059669;
      font-weight: 700;
    }

    /* 需求匹配与表单 */
    .form-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .form-info h3 {
      font-size: 22px;
      margin-bottom: 14px;
      color: var(--text-main);
    }

    .form-info p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .contact-inline {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 14px;
    }

    .contact-inline span {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text-main);
    }

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

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

    .form-group label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      outline: none;
      background: #fcfefe;
      color: var(--text-main);
      transition: border 0.2s ease;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(11, 131, 121, 0.1);
    }

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

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

    .review-card {
      background: #ffffff;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-body {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
      font-style: italic;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid #f1f5f9;
      padding-top: 12px;
    }

    .reviewer-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .reviewer-role {
      font-size: 12px;
      color: var(--primary);
    }

    /* 案例中心 & 行业资讯 */
    .article-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .article-links {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-top: 16px;
    }

    .article-item {
      padding: 10px 14px;
      background: #f8fafc;
      border-radius: 8px;
      font-size: 13px;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      border: 1px solid transparent;
    }

    .article-item:hover {
      border-color: var(--accent);
      background: #f0fdfa;
      color: var(--primary-dark);
    }

    /* FAQ 折叠面板 */
    .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: 10px;
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-question {
      padding: 18px 22px;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

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

    .faq-icon {
      font-size: 18px;
      transition: transform 0.2s ease;
      color: var(--primary);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 18px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px solid #f1f5f9;
      padding-top: 12px;
    }

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

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

    /* 加盟代理模块 */
    .agency-card {
      background: linear-gradient(135deg, #ffffff 0%, #f0fdfa 100%);
      border: 1px solid #99f6e4;
      border-radius: 16px;
      padding: 40px;
      text-align: center;
      box-shadow: var(--shadow-md);
    }

    .agency-card h3 {
      font-size: 24px;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }

    .agency-card p {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto 24px;
    }

    .agency-benefits {
      display: flex;
      justify-content: center;
      gap: 24px;
      margin-bottom: 28px;
      flex-wrap: wrap;
    }

    .agency-benefit-item {
      background: #ffffff;
      padding: 12px 20px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      border: 1px solid var(--border-color);
    }

    /* 页脚 */
    .site-footer {
      background-color: #0d1a19;
      color: #94a3b8;
      padding: 60px 0 30px;
      font-size: 14px;
      border-top: 1px solid #1e293b;
    }

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

    .footer-col h4 {
      color: #ffffff;
      font-size: 15px;
      margin-bottom: 16px;
      font-weight: 600;
    }

    .footer-col p {
      font-size: 13px;
      line-height: 1.7;
      margin-bottom: 12px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links a {
      color: #94a3b8;
    }

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

    .footer-qr-group {
      display: flex;
      gap: 16px;
      align-items: center;
    }

    .qr-box {
      background: #ffffff;
      padding: 6px;
      border-radius: 8px;
      width: 90px;
      height: 90px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .qr-box img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .qr-text {
      font-size: 12px;
      color: #94a3b8;
    }

    .footer-bottom {
      border-top: 1px solid #1f2d2c;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12px;
    }

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-links a {
      color: #64748b;
    }

    .friend-links a:hover {
      color: var(--accent);
    }

    /* 悬浮客服 */
    .floating-contact {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
      cursor: pointer;
      position: relative;
      transition: transform 0.2s ease;
    }

    .floating-btn:hover {
      transform: scale(1.08);
      background: var(--primary-light);
    }

    .qr-popup {
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: 10px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      width: 140px;
      text-align: center;
      display: none;
    }

    .floating-btn:hover .qr-popup {
      display: block;
    }

    .qr-popup p {
      font-size: 11px;
      color: var(--text-main);
      margin-top: 4px;
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .about-grid, .industry-wrapper, .form-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.active {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 28px;
      }
      .service-grid {
        grid-template-columns: 1fr;
      }
      .timeline-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-metrics {
        grid-template-columns: 1fr;
      }
    }