/* 全局基础重置与多彩涂鸦风格变量 */
    :root {
      --primary-color: #6366f1;
      --secondary-color: #ec4899;
      --accent-yellow: #f59e0b;
      --accent-green: #10b981;
      --accent-purple: #8b5cf6;
      --bg-light: #f8fafc;
      --card-bg: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --doodle-border: 2px solid #0f172a;
      --shadow-pop: 4px 4px 0px #0f172a;
      --shadow-hover: 6px 6px 0px #0f172a;
      --radius-custom: 16px;
    }

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

    html {
      scroll-behavior: smooth;
    }

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

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

    a:hover {
      opacity: 0.85;
    }

    /* 容器规范 */
    .ai-container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Section 通用规范 */
    .ai-section {
      padding: 72px 0;
      position: relative;
    }

    .ai-section-title {
      text-align: center;
      margin-bottom: 48px;
    }

    .ai-section-title h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      display: inline-block;
      position: relative;
      background: linear-gradient(120deg, rgba(245,158,11,0.2) 0%, rgba(236,72,153,0.2) 100%);
      padding: 4px 16px;
      border-radius: 8px;
      border: var(--doodle-border);
      box-shadow: 3px 3px 0px #0f172a;
    }

    .ai-section-title p {
      margin-top: 12px;
      color: var(--text-muted);
      font-size: 1.05rem;
    }

    /* 涂鸦风徽章 */
    .graffiti-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
      border: 2px solid #0f172a;
      box-shadow: 2px 2px 0px #0f172a;
      background-color: var(--accent-yellow);
      color: #0f172a;
      margin-bottom: 12px;
    }

    /* 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: var(--doodle-border);
    }

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

    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

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

    .nav-links li a {
      padding: 8px 12px;
      font-weight: 600;
      color: var(--text-main);
      font-size: 0.95rem;
      border-radius: 8px;
    }

    .nav-links li a:hover {
      background-color: #f1f5f9;
      color: var(--primary-color);
    }

    .header-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-doodle {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-weight: 700;
      border-radius: 12px;
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
      background-color: var(--primary-color);
      color: #ffffff !important;
      cursor: pointer;
      transition: all 0.15s ease;
    }

    .btn-doodle:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-hover);
    }

    .btn-doodle-secondary {
      background-color: #ffffff;
      color: var(--text-main) !important;
    }

    .btn-doodle-accent {
      background-color: var(--secondary-color);
      color: #ffffff !important;
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.8rem;
      cursor: pointer;
    }

    /* 1. HERO 首屏 (严禁包含图片) */
    .hero-section {
      padding: 80px 0 60px 0;
      background: radial-gradient(circle at 10% 20%, rgba(245,158,11,0.15) 0%, rgba(236,72,153,0.1) 40%, rgba(99,102,241,0.15) 90%);
      border-bottom: var(--doodle-border);
      text-align: center;
      position: relative;
    }

    .hero-content {
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge-group {
      display: flex;
      justify-content: center;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 20px;
    }

    .hero-title-h1 {
      font-size: 2.5rem;
      font-weight: 900;
      letter-spacing: -0.5px;
      color: var(--text-main);
      margin-bottom: 20px;
      line-height: 1.25;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      color: var(--text-muted);
      margin-bottom: 36px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .stat-card {
      background: #ffffff;
      padding: 20px;
      border-radius: 16px;
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
    }

    .stat-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary-color);
    }

    .stat-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 2. 关于我们 / 平台介绍 */
    .about-section {
      background: #ffffff;
    }

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

    .about-box {
      background: var(--bg-light);
      padding: 32px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
    }

    .models-pill-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .model-pill {
      background: #ffffff;
      border: 1px solid #0f172a;
      padding: 4px 10px;
      border-radius: 8px;
      font-size: 0.85rem;
      font-weight: 600;
      box-shadow: 2px 2px 0px #0f172a;
    }

    /* 3. AIGC服务 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      padding: 28px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
      transition: all 0.2s;
    }

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

    .service-icon {
      width: 54px;
      height: 54px;
      border-radius: 12px;
      border: var(--doodle-border);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 20px;
      box-shadow: 2px 2px 0px #0f172a;
    }

    /* 4. 一站式制作 (场景全景) */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scenario-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
    }

    .scenario-card h4 {
      font-size: 1.15rem;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .scenario-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 5. 行业方案 & 6. 服务网络 */
    .net-solutions-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .info-card-block {
      background: #ffffff;
      padding: 32px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
    }

    /* 7. 标准流程 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .step-item {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
      position: relative;
    }

    .step-badge {
      width: 36px;
      height: 36px;
      background: var(--accent-yellow);
      color: #0f172a;
      font-weight: 800;
      border-radius: 50%;
      border: var(--doodle-border);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

    /* 8. 案例中心 (素材展示) */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
      overflow: hidden;
    }

    .case-img-wrap {
      width: 100%;
      height: 220px;
      overflow: hidden;
      border-bottom: var(--doodle-border);
      background: #e2e8f0;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .case-info {
      padding: 20px;
    }

    /* 9. 对比评测 (5星, 9.9分) */
    .compare-section {
      background: linear-gradient(135deg, #fef3c7 0%, #fce7f3 100%);
      border-top: var(--doodle-border);
      border-bottom: var(--doodle-border);
    }

    .rating-banner {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
      display: flex;
      align-items: center;
      justify-content: space-around;
      margin-bottom: 32px;
    }

    .rating-score {
      font-size: 3rem;
      font-weight: 900;
      color: var(--secondary-color);
    }

    .compare-table-wrapper {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
    }

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

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background: var(--bg-light);
      font-size: 1rem;
      font-weight: 700;
    }

    .highlight-cell {
      background: #f0fdf4;
      font-weight: 700;
      color: var(--accent-green);
    }

    /* 10. 需求匹配 & 11. Token比价 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .price-card {
      background: #ffffff;
      padding: 32px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
      text-align: center;
    }

    .price-val {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-color);
      margin: 16px 0;
    }

    /* 12. 帮助中心 & 14. AI百科 */
    .wiki-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .wiki-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
    }

    /* 13. FAQ 折叠面板 (>=10) */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #ffffff;
      border-radius: 12px;
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      padding: 20px 24px;
      text-align: left;
      font-weight: 700;
      font-size: 1.05rem;
      background: none;
      border: none;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-main);
    }

    .faq-answer {
      padding: 0 24px 20px 24px;
      display: none;
      color: var(--text-muted);
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
    }

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

    .faq-toggle-icon {
      font-size: 1.2rem;
      font-weight: 900;
    }

    /* 15. 行业资讯 */
    .news-wrapper {
      background: #ffffff;
      padding: 32px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
    }

    .news-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-top: 20px;
    }

    .news-list li {
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      justify-content: space-between;
    }

    /* 16. 联系我们 & 表单 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
    }

    .contact-info-box {
      background: #ffffff;
      padding: 32px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
    }

    .qr-code-img {
      width: 140px;
      height: 140px;
      border-radius: 12px;
      border: var(--doodle-border);
      margin-top: 12px;
    }

    .contact-form-box {
      background: #ffffff;
      padding: 32px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: 10px;
      border: var(--doodle-border);
      font-size: 0.95rem;
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(99,102,241,0.2);
    }

    /* 17. 加盟代理 & 客户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-custom);
      border: var(--doodle-border);
      box-shadow: var(--shadow-pop);
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 16px;
    }

    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--accent-yellow);
      border: var(--doodle-border);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
    }

    /* 页脚与友情链接 */
    .site-footer {
      background: #ffffff;
      border-top: var(--doodle-border);
      padding: 48px 0 24px 0;
      color: var(--text-main);
    }

    .footer-content {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 32px;
    }

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }

    .friend-links a {
      background: var(--bg-light);
      padding: 4px 10px;
      border-radius: 6px;
      border: 1px solid var(--border-color);
      color: var(--text-muted);
      font-size: 0.85rem;
    }

    .footer-bottom {
      text-align: center;
      padding-top: 24px;
      border-top: 1px solid var(--border-color);
      font-size: 0.9rem;
      color: var(--text-muted);
    }

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

    .float-btn {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      border: var(--doodle-border);
      background: var(--accent-yellow);
      box-shadow: var(--shadow-pop);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      cursor: pointer;
      color: #0f172a;
    }

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

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .hero-stats-grid, .services-grid, .process-steps, .pricing-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenarios-grid, .case-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: var(--doodle-border);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-title-h1 {
        font-size: 1.8rem;
      }
      .hero-stats-grid, .services-grid, .scenarios-grid, .about-grid, .net-solutions-grid, .process-steps, .case-gallery-grid, .pricing-grid, .wiki-grid, .contact-grid, .reviews-grid, .footer-content {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
      }
    }