/* CSS Standard & Design System: 亮橙炽艳风 */
    :root {
      --primary: #F95738;
      --primary-hover: #E03E1B;
      --primary-light: #FFF0ED;
      --secondary: #FF9F1C;
      --dark-text: #1F2421;
      --muted-text: #5A6578;
      --bg-base: #FAF8F5;
      --bg-card: #FFFFFF;
      --border-color: #E2E8F0;
      --shadow-sm: 0 2px 8px rgba(249, 87, 56, 0.06);
      --shadow-md: 0 6px 20px rgba(249, 87, 56, 0.1);
      --shadow-lg: 0 12px 32px rgba(249, 87, 56, 0.15);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-base);
      color: var(--dark-text);
      line-height: 1.6;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color 0.2s ease, opacity 0.2s ease;
    }
    a:hover {
      color: var(--primary-hover);
    }

    /* 全局容器 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .ai-page-logo {
      max-height: 42px;
      width: auto;
    }
    .brand-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 500;
      color: var(--dark-text);
      border-radius: var(--radius-sm);
    }
    .nav-links li a:hover {
      color: var(--primary);
      background-color: var(--primary-light);
    }
    .header-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: 30px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      color: #FFFFFF !important;
      box-shadow: 0 4px 14px rgba(249, 87, 56, 0.3);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(249, 87, 56, 0.4);
    }
    .btn-outline {
      border-color: var(--primary);
      color: var(--primary) !important;
      background: transparent;
    }
    .btn-outline:hover {
      background: var(--primary-light);
    }

    /* 移动端菜单按钮 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--dark-text);
      cursor: pointer;
    }

    /* 通用Section */
    section {
      padding: 80px 0;
      position: relative;
    }
    .section-title-wrap {
      text-align: center;
      margin-bottom: 54px;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      background-color: var(--primary-light);
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 12px;
      line-height: 1.3;
    }
    .section-desc {
      font-size: 16px;
      color: var(--muted-text);
      max-width: 720px;
      margin: 0 auto;
    }

    /* 1. Hero 首屏 - 纯CSS设计，严禁包含任何图片 */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, #FFF5ED 0%, #FAF8F5 60%);
      padding: 90px 0 70px;
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--dark-text);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-content h1 span {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-subtitle {
      font-size: 17px;
      color: var(--muted-text);
      margin-bottom: 32px;
      line-height: 1.7;
    }
    .hero-btns {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-btn-main {
      padding: 14px 32px;
      font-size: 16px;
    }
    .hero-features-list {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }
    .hero-feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--muted-text);
      font-weight: 500;
    }
    .hero-feature-item::before {
      content: "✓";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 20px;
      height: 20px;
      background: var(--primary);
      color: #fff;
      border-radius: 50%;
      font-size: 12px;
      font-weight: 800;
    }
    .hero-visual-card {
      background: #FFFFFF;
      border: 1px solid rgba(249, 87, 56, 0.15);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }
    .hero-stat-badge {
      position: absolute;
      top: -16px;
      right: 20px;
      background: linear-gradient(135deg, #FF9F1C, #F95738);
      color: #fff;
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 700;
      box-shadow: var(--shadow-sm);
    }
    .hero-card-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 20px;
      border-bottom: 2px solid var(--primary-light);
      padding-bottom: 10px;
    }
    .model-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 24px;
    }
    .model-pill {
      background: var(--bg-base);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      color: var(--dark-text);
    }
    .hero-stat-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      text-align: center;
      background: var(--primary-light);
      padding: 16px;
      border-radius: var(--radius-md);
    }
    .stat-num {
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
    }
    .stat-lbl {
      font-size: 12px;
      color: var(--muted-text);
    }

    /* 2. 关于我们 / 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .about-text {
      font-size: 16px;
      color: var(--muted-text);
      line-height: 1.8;
    }
    .about-highlights {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 24px;
    }
    .highlight-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }
    .highlight-card h4 {
      color: var(--primary);
      font-size: 16px;
      margin-bottom: 8px;
    }

    /* 3. AIGC 服务能力 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: all 0.3s ease;
    }
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }
    .service-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 20px;
    }
    .service-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .service-card p {
      font-size: 14px;
      color: var(--muted-text);
    }

    /* 4. 一站式制作场景 (主打场景) */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
      gap: 20px;
    }
    .scenario-item {
      background: var(--bg-card);
      border-left: 4px solid var(--primary);
      padding: 20px 24px;
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      box-shadow: var(--shadow-sm);
    }
    .scenario-item h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 6px;
      display: flex;
      justify-content: space-between;
    }
    .scenario-tag {
      font-size: 12px;
      background: var(--primary-light);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 10px;
    }
    .scenario-item p {
      font-size: 14px;
      color: var(--muted-text);
    }

    /* 5. 标准流程 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
    }
    .step-num {
      width: 40px;
      height: 40px;
      background: var(--primary);
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      margin: 0 auto 16px;
    }
    .step-card h4 {
      font-size: 16px;
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 13px;
      color: var(--muted-text);
    }

    /* 6. 对比评测 - 五星 & 9.9分 */
    .rating-banner {
      background: linear-gradient(135deg, #FFF0ED 0%, #FFF9F2 100%);
      border: 1px solid rgba(249, 87, 56, 0.2);
      border-radius: var(--radius-lg);
      padding: 32px;
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }
    .rating-score {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .score-big {
      font-size: 54px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }
    .stars-wrap {
      color: #FF9F1C;
      font-size: 24px;
    }
    .rating-text h3 {
      font-size: 22px;
      margin-bottom: 4px;
    }
    .rating-text p {
      color: var(--muted-text);
      font-size: 14px;
    }
    .table-responsive {
      overflow-x: auto;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }
    .compare-table th {
      background: var(--primary-light);
      color: var(--dark-text);
      font-weight: 700;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-highlight {
      font-weight: 700;
      color: var(--primary);
    }

    /* 7. Token 比价表 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }
    .token-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      text-align: center;
    }
    .token-card h4 {
      font-size: 18px;
      margin-bottom: 12px;
    }
    .token-price {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 16px;
    }
    .token-price span {
      font-size: 13px;
      color: var(--muted-text);
      font-weight: 400;
    }

    /* 8. 案例中心 - 图片展示 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .case-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
    }
    .case-img-wrap {
      width: 100%;
      overflow: hidden;
      background: #f0f0f0;
    }
    .case-img-wrap img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }
    .case-info {
      padding: 20px;
    }
    .case-info h4 {
      font-size: 17px;
      margin-bottom: 8px;
    }
    .case-info p {
      font-size: 13px;
      color: var(--muted-text);
    }

    /* 9. 加盟代理 & 商业变现 */
    .agency-box {
      background: linear-gradient(135deg, var(--dark-text) 0%, #343A40 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 48px 36px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 32px;
      align-items: center;
    }
    .agency-box h3 {
      font-size: 28px;
      margin-bottom: 16px;
      color: #FFFFFF;
    }
    .agency-box p {
      font-size: 15px;
      color: #D1D5DB;
      margin-bottom: 24px;
    }

    /* 10. 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }
    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }
    .user-info h5 {
      font-size: 15px;
      font-weight: 700;
    }
    .user-info span {
      font-size: 12px;
      color: var(--muted-text);
    }
    .review-content {
      font-size: 14px;
      color: var(--muted-text);
      font-style: italic;
    }

    /* 11. FAQ 折叠面板 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question::after {
      content: "+";
      font-size: 20px;
      color: var(--primary);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-question::after {
      content: "-";
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 24px;
      color: var(--muted-text);
      font-size: 14px;
      transition: max-height 0.3s ease, padding 0.3s ease;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 0 24px 18px;
    }

    /* 12. 行业资讯与短代码文章 */
    .news-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
    }
    .news-shortcode-wrap {
      margin-bottom: 24px;
      padding: 16px;
      background: var(--bg-base);
      border-radius: var(--radius-sm);
    }
    .articles-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
    }
    .articles-links-list li a {
      display: inline-block;
      padding: 6px 14px;
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: 20px;
      font-size: 13px;
      color: var(--dark-text);
    }
    .articles-links-list li a:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    /* 13. 联系我们 & 表单 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }
    .contact-info-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
    }
    .qr-wrap {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-top: 20px;
      background: var(--primary-light);
      padding: 16px;
      border-radius: var(--radius-md);
    }
    .qr-wrap img {
      width: 110px;
      height: 110px;
      object-fit: cover;
      border-radius: 8px;
    }
    .form-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--dark-text);
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-control:focus {
      border-color: var(--primary);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 友情链接与页脚 */
    .footer {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 24px;
      color: var(--muted-text);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 32px;
    }
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 12px;
    }
    .friend-links a {
      font-size: 13px;
      color: var(--muted-text);
    }
    .friend-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
    }

    /* 悬浮客服 */
    .floating-kefu {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      background: var(--primary);
      color: #fff;
      width: 56px;
      height: 56px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 6px 20px rgba(249, 87, 56, 0.4);
      cursor: pointer;
      font-weight: 700;
      font-size: 13px;
      text-align: center;
    }

    /* 响应式适配 */
    @media (max-width: 992px) {
      .hero-grid, .about-grid, .agency-box, .contact-grid, .footer-grid {
        grid-template-columns: 1fr;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .hero-content h1 {
        font-size: 30px;
      }
    }