:root {
      --bg-page: #faf8f5;
      --bg-card: #ffffff;
      --text-main: #1d2129;
      --text-muted: #5a6474;
      --brand-primary: #ff5722;
      --brand-yellow: #ffb703;
      --brand-cyan: #00b4d8;
      --brand-purple: #7209b7;
      --brand-green: #06d6a0;
      --border-dark: #222222;
      --shadow-solid: 4px 4px 0px #222222;
      --shadow-hover: 6px 6px 0px #222222;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      background-image: radial-gradient(#e5dec9 1px, transparent 1px);
      background-size: 24px 24px;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(250, 248, 245, 0.95);
      border-bottom: 3px solid var(--border-dark);
      backdrop-filter: blur(8px);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-wrap .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }
    .brand-tag {
      font-size: 12px;
      font-weight: 800;
      background: var(--brand-yellow);
      border: 2px solid var(--border-dark);
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      box-shadow: 2px 2px 0 var(--border-dark);
      transform: rotate(-3deg);
      display: inline-block;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-item a {
      padding: 8px 14px;
      font-size: 15px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      display: inline-block;
    }
    .nav-item a:hover {
      background: #ffe3d8;
      color: var(--brand-primary);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-graffiti {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 15px;
      padding: 10px 22px;
      border-radius: var(--radius-md);
      border: 2px solid var(--border-dark);
      box-shadow: var(--shadow-solid);
      cursor: pointer;
      transition: transform 0.15s ease, box-shadow 0.15s ease;
      text-decoration: none;
    }
    .btn-graffiti:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-hover);
    }
    .btn-graffiti:active {
      transform: translate(2px, 2px);
      box-shadow: 1px 1px 0 var(--border-dark);
    }
    .btn-primary {
      background: var(--brand-primary);
      color: #ffffff;
    }
    .btn-yellow {
      background: var(--brand-yellow);
      color: var(--text-main);
    }
    .btn-cyan {
      background: var(--brand-cyan);
      color: #ffffff;
    }
    .btn-purple {
      background: var(--brand-purple);
      color: #ffffff;
    }

    .mobile-menu-btn {
      display: none;
      background: #fff;
      border: 2px solid var(--border-dark);
      box-shadow: 2px 2px 0 var(--border-dark);
      padding: 8px 12px;
      font-weight: 900;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }

    /* 模块通用排版 */
    .section-block {
      padding: 80px 0;
      position: relative;
    }
    .section-head {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px;
    }
    .section-badge {
      display: inline-block;
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 1px;
      padding: 4px 14px;
      border-radius: 999px;
      border: 2px solid var(--border-dark);
      box-shadow: 2px 2px 0 var(--border-dark);
      margin-bottom: 14px;
      text-transform: uppercase;
    }
    .section-title {
      font-size: 34px;
      font-weight: 900;
      letter-spacing: -0.5px;
      color: var(--text-main);
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 Hero 无图片纯排版与视觉块 */
    .hero-section {
      padding: 70px 0 60px;
      text-align: center;
    }
    .hero-wrap {
      max-width: 980px;
      margin: 0 auto;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      box-shadow: var(--shadow-solid);
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 24px;
    }
    .hero-tag span {
      background: var(--brand-primary);
      color: #fff;
      font-size: 11px;
      padding: 2px 6px;
      border-radius: 4px;
    }
    .hero-title {
      font-size: 44px;
      line-height: 1.25;
      font-weight: 950;
      color: #111111;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-subtitle {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.75;
      font-weight: 500;
    }
    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 45px;
    }
    .hero-cta-group .btn-graffiti {
      font-size: 17px;
      padding: 14px 34px;
    }
    
    /* 首屏数据指标卡 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 10px;
    }
    .stat-card {
      background: var(--bg-card);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-solid);
      padding: 22px 16px;
      text-align: center;
      transition: transform 0.2s ease;
    }
    .stat-card:hover {
      transform: translateY(-4px);
    }
    .stat-num {
      font-size: 32px;
      font-weight: 900;
      color: var(--brand-primary);
      margin-bottom: 4px;
    }
    .stat-label {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* 涂鸦风支持模型标签云 */
    .models-cloud-wrap {
      margin-top: 35px;
      padding: 24px;
      background: #fff;
      border: 2px dashed var(--border-dark);
      border-radius: var(--radius-lg);
    }
    .models-cloud-title {
      font-size: 14px;
      font-weight: 900;
      margin-bottom: 14px;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 1px;
    }
    .tags-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }
    .tag-item {
      font-size: 12px;
      font-weight: 800;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      border: 1.5px solid var(--border-dark);
      background: #fdfdfd;
      box-shadow: 2px 2px 0 rgba(0,0,0,0.1);
      transition: all 0.2s ease;
    }
    .tag-item:hover {
      background: var(--brand-yellow);
      transform: rotate(2deg);
    }

    /* 平台介绍板块 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .intro-content p {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.8;
    }
    .intro-pillars {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-top: 24px;
    }
    .pillar-item {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      padding: 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-solid);
    }
    .pillar-title {
      font-weight: 900;
      font-size: 16px;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .intro-visual {
      background: #ffffff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 16px;
      box-shadow: var(--shadow-solid);
    }
    .responsive-img-box {
      width: 100%;
      overflow: hidden;
      border-radius: var(--radius-md);
      border: 2px solid var(--border-dark);
      background: #f0f0f0;
    }
    .responsive-img-box img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    /* AIGC 服务矩阵卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-solid);
      transition: all 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .service-card-tag {
      align-self: flex-start;
      font-size: 11px;
      font-weight: 800;
      padding: 3px 8px;
      border-radius: 4px;
      border: 1.5px solid var(--border-dark);
      margin-bottom: 12px;
    }
    .service-card h3 {
      font-size: 19px;
      font-weight: 900;
      margin-bottom: 10px;
    }
    .service-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    /* 一站式创作工作流 */
    .workflow-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline-step {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      box-shadow: var(--shadow-solid);
      position: relative;
    }
    .step-badge {
      font-size: 12px;
      font-weight: 900;
      background: var(--brand-purple);
      color: #fff;
      display: inline-block;
      padding: 2px 10px;
      border-radius: 999px;
      border: 1.5px solid var(--border-dark);
      margin-bottom: 14px;
    }
    .timeline-step h4 {
      font-size: 17px;
      font-weight: 900;
      margin-bottom: 8px;
    }
    .timeline-step p {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 行业方案分栏 */
    .industry-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }
    .industry-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-solid);
    }
    .industry-card h4 {
      font-size: 18px;
      font-weight: 900;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .industry-card ul {
      list-style: none;
      font-size: 14px;
      color: var(--text-muted);
    }
    .industry-card li {
      margin-bottom: 8px;
      display: flex;
      align-items: baseline;
      gap: 6px;
    }
    .industry-card li::before {
      content: "✔";
      color: var(--brand-green);
      font-weight: 900;
      font-size: 12px;
    }

    /* 案例展示 */
    .showcase-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }
    .showcase-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 20px;
      box-shadow: var(--shadow-solid);
    }
    .showcase-card h4 {
      font-size: 18px;
      font-weight: 900;
      margin: 14px 0 8px;
    }
    .showcase-card p {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 对比评测表格与卡片 */
    .eval-highlight {
      background: #ffffff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-solid);
      margin-bottom: 30px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .eval-score-box {
      display: flex;
      align-items: center;
      gap: 18px;
    }
    .eval-score-num {
      font-size: 54px;
      font-weight: 950;
      color: var(--brand-primary);
      line-height: 1;
      border: 3px solid var(--border-dark);
      padding: 8px 16px;
      background: var(--brand-yellow);
      box-shadow: 3px 3px 0 var(--border-dark);
      border-radius: var(--radius-sm);
    }
    .eval-stars {
      color: #ff9f1c;
      font-size: 20px;
      letter-spacing: 2px;
    }
    .table-container {
      overflow-x: auto;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-solid);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 15px;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #e2e8f0;
    }
    .compare-table th {
      background: #f8fafc;
      font-weight: 900;
      color: var(--text-main);
      border-bottom: 2px solid var(--border-dark);
    }
    .compare-table td.brand-col {
      background: #fff8f5;
      font-weight: 800;
      color: var(--brand-primary);
    }

    /* Token 比价看板 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .token-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-solid);
      text-align: center;
    }
    .token-card h4 {
      font-size: 18px;
      font-weight: 900;
      margin-bottom: 10px;
    }
    .token-price {
      font-size: 26px;
      font-weight: 950;
      color: var(--brand-primary);
      margin: 10px 0;
    }
    .token-official {
      font-size: 13px;
      color: #94a3b8;
      text-decoration: line-through;
      margin-bottom: 12px;
    }
    .token-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 800;
      background: #ecfdf5;
      color: #059669;
      border: 1px solid #a7f3d0;
      padding: 2px 8px;
      border-radius: 4px;
    }

    /* 客户真实评价卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }
    .review-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-solid);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 10px;
      border-top: 1px dashed #e2e8f0;
      padding-top: 14px;
    }
    .author-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: 2px solid var(--border-dark);
      background: var(--brand-yellow);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 16px;
    }
    .author-name {
      font-weight: 900;
      font-size: 14px;
    }
    .author-role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 常见问题 FAQ 折叠面板 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-solid);
      overflow: hidden;
    }
    .faq-header {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      background: none;
      border: none;
      font-size: 16px;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
    }
    .faq-icon {
      font-size: 20px;
      font-weight: 900;
      transition: transform 0.2s ease;
    }
    .faq-body {
      padding: 0 22px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      color: var(--text-muted);
      font-size: 14.5px;
      line-height: 1.75;
      border-top: 0px solid transparent;
    }
    .faq-item.active .faq-body {
      padding: 14px 22px 20px;
      max-height: 300px;
      border-top: 1px dashed #e2e8f0;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* 需求匹配表单与联系我们 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      background: #ffffff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-solid);
      padding: 40px;
    }
    .form-box h3 {
      font-size: 22px;
      font-weight: 900;
      margin-bottom: 20px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 13.5px;
      font-weight: 800;
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      border: 2px solid var(--border-dark);
      font-size: 14px;
      outline: none;
      background: #fff;
    }
    .form-control:focus {
      border-color: var(--brand-primary);
      box-shadow: 2px 2px 0 var(--border-dark);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }
    .contact-info-box {
      border-left: 2px dashed #cbd5e1;
      padding-left: 36px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .info-list-group {
      list-style: none;
      margin-bottom: 24px;
    }
    .info-list-group li {
      font-size: 14.5px;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .qr-container {
      background: #f8fafc;
      border: 2px solid var(--border-dark);
      padding: 16px;
      border-radius: var(--radius-md);
      text-align: center;
      max-width: 220px;
    }
    .qr-container img {
      width: 140px;
      height: 140px;
      display: block;
      margin: 0 auto 10px;
      border: 1px solid #cbd5e1;
      border-radius: 4px;
    }
    .qr-container p {
      font-size: 12px;
      font-weight: 800;
      color: var(--text-main);
    }

    /* 行业资讯与文章动态 */
    .article-wrap {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-solid);
    }
    .article-links-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 14px;
    }
    .article-pill {
      font-size: 13px;
      font-weight: 700;
      background: #f1f5f9;
      border: 1.5px solid var(--border-dark);
      padding: 6px 14px;
      border-radius: 6px;
      transition: all 0.2s ease;
    }
    .article-pill:hover {
      background: var(--brand-yellow);
      transform: translateY(-2px);
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 3px solid var(--border-dark);
      padding: 50px 0 30px;
      margin-top: 60px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.2fr 2fr;
      gap: 40px;
      padding-bottom: 30px;
      border-bottom: 1px solid #e2e8f0;
    }
    .footer-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-top: 12px;
      line-height: 1.7;
    }
    .friendly-links-wrap h5 {
      font-size: 15px;
      font-weight: 900;
      margin-bottom: 12px;
    }
    .links-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .links-grid a {
      font-size: 13.5px;
      color: var(--text-muted);
      background: #f8fafc;
      border: 1px solid #cbd5e1;
      padding: 4px 10px;
      border-radius: 4px;
      transition: all 0.2s ease;
    }
    .links-grid a:hover {
      color: var(--brand-primary);
      border-color: var(--brand-primary);
    }
    .footer-bottom {
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13.5px;
      color: var(--text-muted);
    }
    .footer-bottom a {
      color: var(--brand-primary);
      font-weight: 700;
    }

    /* 浮动操作栏 */
    .floating-bar {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 99;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-solid);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-weight: 900;
      font-size: 14px;
      transition: all 0.2s ease;
    }
    .float-btn:hover {
      background: var(--brand-yellow);
      transform: translate(-2px, -2px);
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .services-grid, .industry-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-grid, .workflow-timeline, .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid, .showcase-grid, .contact-wrapper, .footer-top {
        grid-template-columns: 1fr;
      }
      .contact-info-box {
        border-left: none;
        border-top: 2px dashed #cbd5e1;
        padding-left: 0;
        padding-top: 30px;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 2px solid var(--border-dark);
        flex-direction: column;
        padding: 16px 20px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-item {
        width: 100%;
      }
      .nav-item a {
        display: block;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .services-grid, .industry-grid, .reviews-grid, .token-grid, .stats-grid, .workflow-timeline {
        grid-template-columns: 1fr;
      }
      .intro-pillars {
        grid-template-columns: 1fr;
      }
      .eval-highlight {
        flex-direction: column;
        align-items: flex-start;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }