/* 多彩涂鸦风格基础设计系统 */
    :root {
      --bg-main: #fcfbf7;
      --bg-card: #ffffff;
      --text-main: #1e1e1e;
      --text-muted: #555555;
      --border-dark: #1e1e1e;
      --color-yellow: #ffe66d;
      --color-teal: #4ecdc4;
      --color-coral: #ff6b6b;
      --color-purple: #a88beb;
      --color-green: #7ae582;
      --color-orange: #ffa07a;
      --shadow-doodle: 4px 4px 0px #1e1e1e;
      --shadow-doodle-lg: 6px 6px 0px #1e1e1e;
      --radius-doodle: 16px;
      --container-max: 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-color: var(--bg-main);
      color: var(--text-main);
    }

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

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

    /* 多彩涂鸦风卡片与按钮组件 */
    .doodle-card {
      background: var(--bg-card);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      box-shadow: var(--shadow-doodle);
      padding: 24px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      position: relative;
    }

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

    .doodle-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-weight: 700;
      font-size: 1rem;
      border: 2px solid var(--border-dark);
      border-radius: 50px;
      background-color: var(--color-yellow);
      color: var(--text-main);
      box-shadow: 3px 3px 0px var(--border-dark);
      cursor: pointer;
      transition: all 0.15s ease;
    }

    .doodle-btn:hover {
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0px var(--border-dark);
    }

    .doodle-btn:active {
      transform: translate(1px, 1px);
      box-shadow: 2px 2px 0px var(--border-dark);
    }

    .doodle-btn-alt {
      background-color: var(--color-teal);
    }

    .doodle-btn-coral {
      background-color: var(--color-coral);
      color: #fff;
    }

    .doodle-tag {
      display: inline-block;
      padding: 4px 12px;
      border: 2px solid var(--border-dark);
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 700;
      background-color: var(--color-green);
      margin-right: 8px;
      margin-bottom: 8px;
    }

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

    .section-subtitle {
      display: inline-block;
      background: var(--color-yellow);
      border: 2px solid var(--border-dark);
      padding: 4px 16px;
      border-radius: 20px;
      font-weight: 700;
      font-size: 0.9rem;
      box-shadow: 2px 2px 0 var(--border-dark);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.3;
    }

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(252, 251, 247, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--border-dark);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

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

    .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* 严格要求设置为0 */
    }

    .nav-links a {
      padding: 8px 14px;
      font-weight: 600;
      font-size: 0.95rem;
      border-radius: 8px;
      transition: background 0.2s ease;
    }

    .nav-links a:hover {
      background-color: var(--color-yellow);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      padding: 6px 12px;
      font-weight: bold;
      cursor: pointer;
    }

    /* 首屏 HERO (无图片) */
    .hero-section {
      padding: 80px 0 60px;
      background: radial-gradient(circle at 10% 20%, #ffe66d33 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, #4ecdc433 0%, transparent 40%);
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-block;
      background: var(--color-purple);
      color: #fff;
      border: 2px solid var(--border-dark);
      padding: 6px 20px;
      border-radius: 30px;
      font-weight: 800;
      font-size: 0.95rem;
      box-shadow: var(--shadow-doodle);
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 3rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
      color: var(--text-main);
    }

    .hero-desc {
      max-width: 800px;
      margin: 0 auto 36px;
      font-size: 1.15rem;
      color: var(--text-muted);
    }

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

    .hero-features-strip {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-top: 20px;
    }

    .strip-item {
      background: #fff;
      border: 2px solid var(--border-dark);
      padding: 8px 16px;
      border-radius: 12px;
      font-weight: 700;
      font-size: 0.9rem;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    /* 数据指标区 */
    .metrics-section {
      padding: 40px 0;
    }

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

    .metric-card {
      text-align: center;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      padding: 24px;
      box-shadow: var(--shadow-doodle);
    }

    .metric-card:nth-child(1) { background: #fff8d6; }
    .metric-card:nth-child(2) { background: #e0f7f5; }
    .metric-card:nth-child(3) { background: #f3e8ff; }
    .metric-card:nth-child(4) { background: #ffe8e8; }

    .metric-num {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-weight: 700;
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    /* 关于我们与平台介绍 */
    .section-padding {
      padding: 70px 0;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .about-content h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .about-content p {
      color: var(--text-muted);
      margin-bottom: 16px;
      font-size: 1rem;
    }

    .feature-list {
      list-style: none;
      margin-top: 20px;
    }

    .feature-list li {
      position: relative;
      padding-left: 28px;
      margin-bottom: 12px;
      font-weight: 700;
    }

    .feature-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      width: 20px;
      height: 20px;
      background: var(--color-green);
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
    }

    /* AIGC服务与一站式制作 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 16px;
    }

    .service-icon-badge {
      width: 44px;
      height: 44px;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.2rem;
      background: var(--color-yellow);
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .service-title {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .service-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    /* 支持模型标签墙 */
    .models-cloud-wrap {
      margin-top: 40px;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      padding: 30px;
      box-shadow: var(--shadow-doodle);
      text-align: center;
    }

    .models-cloud-title {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .model-chip {
      display: inline-block;
      padding: 6px 14px;
      margin: 4px;
      border: 2px solid var(--border-dark);
      border-radius: 20px;
      background: var(--bg-main);
      font-weight: 700;
      font-size: 0.85rem;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    /* 行业方案与需求匹配 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

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

    .step-card {
      position: relative;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      padding: 24px;
      box-shadow: var(--shadow-doodle);
    }

    .step-num {
      position: absolute;
      top: -16px;
      right: 16px;
      background: var(--color-coral);
      color: #fff;
      border: 2px solid var(--border-dark);
      width: 36px;
      height: 36px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
    }

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

    .case-card {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      overflow: hidden;
      box-shadow: var(--shadow-doodle);
    }

    .case-img-holder {
      width: 100%;
      border-bottom: 2px solid var(--border-dark);
      background: #f0f0f0;
    }

    .case-img-holder img {
      width: 100%;
      height: auto;
      display: block;
    }

    .case-info {
      padding: 20px;
    }

    /* 对比评测 */
    .comparison-wrap {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      padding: 32px;
      box-shadow: var(--shadow-doodle-lg);
    }

    .score-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: var(--color-yellow);
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      padding: 20px 30px;
      margin-bottom: 28px;
    }

    .score-banner-left {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-big {
      font-size: 3rem;
      font-weight: 900;
      line-height: 1;
    }

    .score-stars {
      color: #e65100;
      font-size: 1.4rem;
      font-weight: bold;
    }

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

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

    .comp-table th, .comp-table td {
      padding: 14px 16px;
      border: 2px solid var(--border-dark);
    }

    .comp-table th {
      background: #f4f2ea;
      font-weight: 800;
    }

    .comp-table tr:nth-child(even) {
      background: #fafafa;
    }

    .highlight-cell {
      background: #fff8d6 !important;
      font-weight: bold;
    }

    /* Token比价 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .token-card {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      padding: 24px;
      box-shadow: var(--shadow-doodle);
      text-align: center;
    }

    .token-price {
      font-size: 2rem;
      font-weight: 900;
      color: var(--color-coral);
      margin: 12px 0;
    }

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

    .review-card {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      padding: 24px;
      box-shadow: var(--shadow-doodle);
    }

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

    .avatar-box {
      width: 44px;
      height: 44px;
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      background: var(--color-teal);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
    }

    .user-info-text .user-name {
      font-weight: 800;
      font-size: 1rem;
    }

    .user-info-text .user-role {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* FAQ折叠面板 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      margin-bottom: 16px;
      box-shadow: 3px 3px 0 var(--border-dark);
      overflow: hidden;
    }

    .faq-question {
      padding: 20px 24px;
      font-weight: 800;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
      background: #fff;
    }

    .faq-answer {
      padding: 0 24px 20px;
      color: var(--text-muted);
      font-size: 0.95rem;
      display: none;
      border-top: 1px dashed #ccc;
      padding-top: 16px;
    }

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

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

    .faq-toggle-icon {
      transition: transform 0.2s ease;
      font-weight: bold;
    }

    /* AI百科与资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 32px;
    }

    .news-article-list {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      padding: 24px;
      box-shadow: var(--shadow-doodle);
    }

    .article-item-link {
      display: block;
      padding: 12px 0;
      border-bottom: 1px dashed #ddd;
      font-weight: 700;
      color: var(--text-main);
      transition: color 0.2s ease;
    }

    .article-item-link:hover {
      color: var(--color-coral);
    }

    /* 加盟代理与联系我们 */
    .contact-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .contact-form-box {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      padding: 32px;
      box-shadow: var(--shadow-doodle-lg);
    }

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

    .form-group label {
      display: block;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      font-size: 1rem;
      background: var(--bg-main);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--color-coral);
      background: #fff;
    }

    textarea.form-control {
      resize: vertical;
      min-height: 120px;
    }

    .contact-info-box {
      background: #fff8d6;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-doodle);
      padding: 32px;
      box-shadow: var(--shadow-doodle);
    }

    .qr-box {
      margin-top: 24px;
      text-align: center;
      background: #fff;
      border: 2px solid var(--border-dark);
      padding: 16px;
      border-radius: 12px;
      display: inline-block;
    }

    .qr-box img {
      max-width: 160px;
      height: auto;
      display: block;
      margin: 0 auto;
    }

    /* 页脚 */
    footer.site-footer {
      background: #1e1e1e;
      color: #ffffff;
      padding: 60px 0 30px;
      border-top: 4px solid var(--border-dark);
      margin-top: 60px;
    }

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

    .footer-brand p {
      color: #cccccc;
      margin-top: 12px;
      font-size: 0.95rem;
    }

    .footer-links h4 {
      color: var(--color-yellow);
      font-size: 1.1rem;
      margin-bottom: 16px;
    }

    .footer-links ul {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: #e0e0e0;
      font-size: 0.9rem;
    }

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

    .friendship-links-wrap {
      border-top: 1px solid #333333;
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friendship-links-wrap h5 {
      color: #aaaaaa;
      font-size: 0.9rem;
      margin-bottom: 12px;
    }

    .friendship-links-wrap a {
      color: #cccccc;
      margin-right: 16px;
      font-size: 0.88rem;
      display: inline-block;
      margin-bottom: 8px;
    }

    .friendship-links-wrap a:hover {
      color: var(--color-teal);
    }

    .footer-bottom {
      text-align: center;
      border-top: 1px solid #333333;
      padding-top: 20px;
      font-size: 0.85rem;
      color: #888888;
    }

    /* 浮动客服入口 */
    .float-kefu {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      background: var(--color-coral);
      color: #fff;
      border: 2px solid var(--border-dark);
      padding: 12px 20px;
      border-radius: 30px;
      font-weight: 800;
      box-shadow: 4px 4px 0 var(--border-dark);
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
      transition: transform 0.2s ease;
    }

    .float-kefu:hover {
      transform: translateY(-4px);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .services-grid, .solutions-grid, .steps-grid, .cases-grid, .reviews-grid, .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .news-grid, .contact-wrap, .footer-inner {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 2.2rem;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 2px solid var(--border-dark);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-doodle);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .metrics-grid, .services-grid, .solutions-grid, .steps-grid, .cases-grid, .reviews-grid, .token-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 1.8rem;
      }
    }