/* 基础复位与全局变量 - 亮紫绚烂风 Theme */
    :root {
      --primary-color: #6f42c1;
      --primary-hover: #5925b9;
      --primary-light: #f3ebff;
      --accent-color: #9d4edd;
      --accent-glow: rgba(157, 78, 221, 0.25);
      --bg-main: #f8f7fc;
      --bg-card: #ffffff;
      --text-main: #1e1b4b;
      --text-muted: #64748b;
      --border-color: #e9ecef;
      --shadow-sm: 0 4px 12px rgba(111, 66, 193, 0.08);
      --shadow-lg: 0 12px 32px rgba(111, 66, 193, 0.15);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 24px;
      --container-width: 1200px;
    }

    * {
      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-main);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      background: linear-gradient(180deg, #f3ebff 0%, var(--bg-main) 300px);
    }

    a {
      color: var(--primary-color);
      text-decoration: none;
      transition: all 0.25s ease;
    }

    a:hover {
      color: var(--primary-hover);
    }

    ul, ol {
      list-style: none;
    }

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

    /* 容器规范 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 2px solid transparent;
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, #7b2cbf 0%, #9d4edd 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 15px rgba(123, 44, 191, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(123, 44, 191, 0.45);
      background: linear-gradient(135deg, #6a23a7 0%, #8b3dc7 100%);
    }

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

    .btn-outline:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
    }

    /* 模块统一标题 */
    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 16px;
      background: var(--primary-light);
      color: var(--primary-color);
      font-size: 13px;
      font-weight: 700;
      border-radius: 20px;
      letter-spacing: 1px;
      margin-bottom: 12px;
      text-transform: uppercase;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }

    /* 1. 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(111, 66, 193, 0.1);
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .nav-links {
      display: flex;
      gap: 0; /* 严格按照规则要求设置为0 */
      align-items: center;
    }

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

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

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

    /* 2. Hero 首屏 - 严格要求：首屏绝对不得出现图片资源 */
    .hero-section {
      padding: 90px 0 70px;
      background: linear-gradient(135deg, #f5efff 0%, #ffffff 50%, #f3ebff 100%);
      position: relative;
      overflow: hidden;
      text-align: center;
    }

    .hero-bg-glow {
      position: absolute;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(157, 78, 221, 0.15) 0%, rgba(255,255,255,0) 70%);
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      pointer-events: none;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid #e0c7ff;
      border-radius: 30px;
      font-size: 13px;
      color: var(--primary-color);
      font-weight: 600;
      margin-bottom: 24px;
      box-shadow: 0 4px 12px rgba(111, 66, 193, 0.06);
    }

    .hero-title {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.25;
      color: #1e1b4b;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(135deg, #7b2cbf 0%, #c77dff 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.6;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-tags-wrapper {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      max-width: 860px;
      margin: 0 auto;
    }

    .hero-tag-item {
      padding: 6px 14px;
      background: rgba(255, 255, 255, 0.8);
      border: 1px solid #e2d4f7;
      border-radius: 8px;
      font-size: 12px;
      color: #5a2a9c;
      font-weight: 500;
    }

    /* 3. 数据指标卡片 */
    .stats-section {
      padding: 40px 0;
      margin-top: -30px;
      position: relative;
      z-index: 10;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .stat-card {
      background: var(--bg-card);
      padding: 28px 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      border: 1px solid rgba(111, 66, 193, 0.08);
      text-align: center;
      transition: transform 0.3s ease;
    }

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

    .stat-number {
      font-size: 36px;
      font-weight: 800;
      color: var(--primary-color);
      line-height: 1;
      margin-bottom: 8px;
    }

    .stat-label {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 4. 关于我们 / 平台介绍 */
    .about-section {
      padding: 80px 0;
      background: #ffffff;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-content h2 {
      font-size: 30px;
      font-weight: 800;
      margin-bottom: 20px;
      color: var(--text-main);
    }

    .about-content p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.7;
    }

    .about-features {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .about-feature-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }

    .about-feature-icon {
      width: 24px;
      height: 24px;
      background: var(--primary-light);
      color: var(--primary-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      flex-shrink: 0;
    }

    .about-image-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
    }

    /* 5. AIGC服务 / 场景卡片矩阵 */
    .services-section {
      padding: 80px 0;
      background: var(--bg-main);
    }

    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      border: 1px solid rgba(111, 66, 193, 0.08);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: var(--accent-color);
    }

    .service-icon {
      width: 52px;
      height: 52px;
      background: linear-gradient(135deg, #f3ebff 0%, #e0c7ff 100%);
      color: var(--primary-color);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: bold;
      margin-bottom: 20px;
    }

    .service-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .service-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 6. 一站式制作 & 多模型支持 */
    .models-section {
      padding: 80px 0;
      background: #ffffff;
    }

    .models-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-badge {
      padding: 10px 20px;
      background: #f8f6fc;
      border: 1px solid #e5d8fb;
      border-radius: 30px;
      font-size: 14px;
      font-weight: 600;
      color: #4c1d95;
      transition: all 0.25s ease;
    }

    .model-badge:hover {
      background: var(--primary-color);
      color: #ffffff;
      transform: scale(1.05);
    }

    /* 7. 行业方案 & 服务网络 */
    .solutions-section {
      padding: 80px 0;
      background: var(--bg-main);
    }

    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .solution-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 32px;
      border: 1px solid rgba(111, 66, 193, 0.1);
      display: flex;
      gap: 20px;
    }

    .solution-content h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .solution-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 标准流程 */
    .process-section {
      padding: 80px 0;
      background: #ffffff;
    }

    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .process-step-card {
      text-align: center;
      padding: 30px 20px;
      background: var(--bg-main);
      border-radius: var(--radius-md);
      position: relative;
    }

    .process-number {
      width: 44px;
      height: 44px;
      background: var(--primary-color);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 18px;
      margin: 0 auto 16px;
    }

    .process-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .process-desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 9. 案例中心 */
    .cases-section {
      padding: 80px 0;
      background: var(--bg-main);
    }

    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .case-img-holder {
      overflow: hidden;
    }

    .case-img-holder img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .case-card:hover .case-img-holder img {
      transform: scale(1.05);
    }

    .case-info {
      padding: 20px;
    }

    .case-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .case-tag {
      display: inline-block;
      padding: 2px 10px;
      background: var(--primary-light);
      color: var(--primary-color);
      font-size: 12px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 10. 对比评测 - 5星9.9分 */
    .compare-section {
      padding: 80px 0;
      background: #ffffff;
    }

    .rating-banner {
      background: linear-gradient(135deg, #4c1d95 0%, #7b2cbf 100%);
      color: #ffffff;
      padding: 32px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 40px;
    }

    .rating-score {
      display: flex;
      align-items: baseline;
      gap: 12px;
    }

    .score-num {
      font-size: 48px;
      font-weight: 900;
      color: #ffd166;
    }

    .score-stars {
      color: #ffd166;
      font-size: 24px;
    }

    .compare-table-wrap {
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      background: #ffffff;
      border-radius: var(--radius-sm);
      overflow: hidden;
    }

    .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: #f3ebff;
      color: var(--text-main);
      font-weight: 700;
    }

    .compare-table td.highlight {
      background: rgba(243, 235, 255, 0.4);
      font-weight: 700;
      color: var(--primary-color);
    }

    /* 11. Token 比价参考 & 需求匹配 */
    .pricing-section {
      padding: 80px 0;
      background: var(--bg-main);
    }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .price-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 32px;
      border: 1px solid var(--border-color);
      text-align: center;
      position: relative;
    }

    .price-card.featured {
      border: 2px solid var(--primary-color);
      box-shadow: var(--shadow-lg);
    }

    .price-card-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary-color);
      color: #ffffff;
      padding: 4px 16px;
      font-size: 12px;
      font-weight: 700;
      border-radius: 12px;
    }

    .price-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .price-amount {
      font-size: 36px;
      font-weight: 800;
      color: var(--primary-color);
      margin-bottom: 20px;
    }

    .price-features {
      margin-bottom: 28px;
      text-align: left;
    }

    .price-features li {
      padding: 8px 0;
      font-size: 14px;
      color: var(--text-muted);
      border-bottom: 1px dashed var(--border-color);
    }

    /* 12. 客户评论 */
    .reviews-section {
      padding: 80px 0;
      background: #ffffff;
    }

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

    .review-card {
      background: var(--bg-main);
      padding: 28px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(111, 66, 193, 0.08);
    }

    .review-content {
      font-size: 14px;
      color: var(--text-main);
      font-style: italic;
      margin-bottom: 20px;
      line-height: 1.6;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      background: var(--primary-color);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }

    .author-name {
      font-weight: 700;
      font-size: 15px;
    }

    .author-role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 13. FAQ 常见问题 & AI百科 */
    .faq-section {
      padding: 80px 0;
      background: var(--bg-main);
    }

    .faq-accordion {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      border: 1px solid var(--border-color);
      overflow: hidden;
    }

    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
    }

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

    .faq-item.active .faq-toggle-icon {
      transform: rotate(180deg);
    }

    .faq-toggle-icon {
      transition: transform 0.3s ease;
      color: var(--primary-color);
      font-weight: bold;
    }

    /* 14. 行业资讯与最新文章 */
    .articles-section {
      padding: 80px 0;
      background: #ffffff;
    }

    .articles-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .article-item-card {
      padding: 20px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: border-color 0.3s ease;
    }

    .article-item-card:hover {
      border-color: var(--primary-color);
    }

    .article-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    /* 15. 加盟代理 & 联系我们表单 */
    .contact-section {
      padding: 80px 0;
      background: linear-gradient(135deg, #f3ebff 0%, #ffffff 100%);
    }

    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(111, 66, 193, 0.1);
    }

    .contact-info h3 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }

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

    .contact-details-item {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      font-size: 14px;
    }

    .contact-qr-box {
      margin-top: 24px;
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .contact-qr-img {
      width: 110px;
      height: 110px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      object-fit: cover;
    }

    /* 表单组件 */
    .contact-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 {
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
      transition: border-color 0.25s ease;
    }

    .form-control:focus {
      border-color: var(--primary-color);
    }

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

    /* 16. 页脚与友情链接 */
    .site-footer {
      background: #181028;
      color: #d1c4e9;
      padding: 60px 0 30px;
      font-size: 14px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-brand p {
      margin-top: 12px;
      font-size: 13px;
      color: #a799c7;
      max-width: 320px;
    }

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

    .footer-col ul li {
      margin-bottom: 8px;
    }

    .footer-col ul li a {
      color: #a799c7;
    }

    .footer-col ul li a:hover {
      color: #ffffff;
    }

    .friend-links-box {
      margin-bottom: 30px;
    }

    .friend-links-box h5 {
      color: #ffffff;
      margin-bottom: 10px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-list a {
      color: #a799c7;
      font-size: 13px;
    }

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

    .footer-bottom {
      text-align: center;
      font-size: 13px;
      color: #8374a8;
    }

    /* 浮动客服 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary-color);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-lg);
      cursor: pointer;
      font-size: 20px;
      transition: transform 0.25s ease;
    }

    .float-btn:hover {
      transform: scale(1.1);
    }

    /* 响应式适配 */
    @media (max-width: 992px) {
      .stats-grid, .services-grid, .pricing-grid, .reviews-grid, .cases-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .solutions-grid, .contact-wrapper, .footer-top {
        grid-template-columns: 1fr;
      }
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 30px;
      }
      .stats-grid, .services-grid, .pricing-grid, .reviews-grid, .cases-grid, .process-steps, .articles-list {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        text-align: center;
        gap: 16px;
      }
    }