/* CSS 全局变量与多彩涂鸦风格基调 */
    :root {
      --bg-main: #faf9f6;
      --bg-card: #ffffff;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --text-light: #94a3b8;
      
      /* 多彩涂鸦特征调色盘 */
      --graffiti-yellow: #ffd000;
      --graffiti-pink: #ff4785;
      --graffiti-cyan: #00d2ff;
      --graffiti-purple: #7928ca;
      --graffiti-green: #00e599;
      --graffiti-orange: #ff6b35;
      --border-dark: #1e293b;
      
      --border-thick: 2px solid #1e293b;
      --shadow-brutal: 4px 4px 0px #1e293b;
      --shadow-brutal-hover: 6px 6px 0px #1e293b;
      --shadow-brutal-active: 1px 1px 0px #1e293b;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-max: 1200px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-stack);
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(255, 208, 0, 0.08) 0%, transparent 20%),
        radial-gradient(circle at 90% 40%, rgba(255, 71, 133, 0.06) 0%, transparent 30%),
        radial-gradient(circle at 30% 80%, rgba(0, 210, 255, 0.08) 0%, transparent 25%),
        radial-gradient(#1e293b 0.75px, transparent 0.75px);
      background-size: 100% 100%, 100% 100%, 100% 100%, 24px 24px;
    }

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

    /* 统一样式容器 */
    .site-container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      border-bottom: var(--border-thick);
      backdrop-filter: blur(8px);
    }

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

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 900;
      font-size: 1.25rem;
      letter-spacing: -0.5px;
    }

    .brand-logo-wrap img.ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
      border: 1.5px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 2px;
      background: #fff;
    }

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

    .nav-links li a {
      padding: 8px 14px;
      font-weight: 700;
      font-size: 0.95rem;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      display: inline-block;
    }

    .nav-links li a:hover {
      background: var(--graffiti-yellow);
      transform: translateY(-2px);
      box-shadow: 2px 2px 0px var(--border-dark);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-action {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-weight: 800;
      font-size: 0.95rem;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      cursor: pointer;
      transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
      text-align: center;
      background: #fff;
      color: var(--text-main);
      box-shadow: var(--shadow-brutal);
    }

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

    .btn-action:active {
      transform: translate(2px, 2px);
      box-shadow: var(--shadow-brutal-active);
    }

    .btn-primary {
      background: var(--graffiti-yellow);
      color: var(--border-dark);
    }

    .btn-accent {
      background: var(--graffiti-pink);
      color: #fff;
    }

    .btn-cyan {
      background: var(--graffiti-cyan);
      color: var(--border-dark);
    }

    /* 移动端菜单开关 */
    .menu-toggle {
      display: none;
      background: #fff;
      border: var(--border-thick);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      font-weight: 800;
      cursor: pointer;
      box-shadow: 2px 2px 0px var(--border-dark);
    }

    /* 区域通配样式 */
    .section-spacing {
      padding: 70px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px;
    }

    .section-badge {
      display: inline-block;
      padding: 6px 14px;
      font-size: 0.85rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      border: var(--border-thick);
      border-radius: 999px;
      background: var(--graffiti-yellow);
      box-shadow: 2px 2px 0px var(--border-dark);
      margin-bottom: 14px;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 首屏 HERO (无图片要求) */
    .hero-section {
      padding: 80px 0 60px;
      position: relative;
    }

    .hero-layout {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content h1 {
      font-size: 2.75rem;
      font-weight: 950;
      line-height: 1.2;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-highlight {
      background: linear-gradient(120deg, var(--graffiti-yellow) 0%, #fffb8f 100%);
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      border: 2px dashed var(--border-dark);
      display: inline-block;
      margin-top: 4px;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: #334155;
      margin-bottom: 30px;
      line-height: 1.7;
      font-weight: 500;
    }

    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }

    .hero-btn-large {
      padding: 14px 32px;
      font-size: 1.1rem;
    }

    .hero-visual-card {
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 8px 8px 0px var(--border-dark);
      position: relative;
    }

    .hero-visual-card::after {
      content: "AIGC PRO";
      position: absolute;
      top: -14px;
      right: 20px;
      background: var(--graffiti-pink);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 900;
      padding: 4px 10px;
      border: var(--border-thick);
      border-radius: 6px;
      transform: rotate(4deg);
    }

    .console-header {
      display: flex;
      gap: 8px;
      margin-bottom: 18px;
      border-bottom: 2px dashed #cbd5e1;
      padding-bottom: 12px;
    }

    .console-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 1.5px solid var(--border-dark);
    }
    .dot-1 { background: var(--graffiti-pink); }
    .dot-2 { background: var(--graffiti-yellow); }
    .dot-3 { background: var(--graffiti-green); }

    .model-chip-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-bottom: 20px;
    }

    .model-chip {
      background: #f8fafc;
      border: 1.5px solid var(--border-dark);
      padding: 8px;
      border-radius: var(--radius-sm);
      text-align: center;
      font-weight: 800;
      font-size: 0.85rem;
      transition: all 0.2s;
    }

    .model-chip:hover {
      background: var(--graffiti-cyan);
      transform: translateY(-2px);
    }

    .hero-stat-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      border-top: var(--border-thick);
      padding-top: 18px;
      text-align: center;
    }

    .stat-box-value {
      font-size: 1.4rem;
      font-weight: 900;
      color: var(--text-main);
    }

    .stat-box-label {
      font-size: 0.8rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 平台介绍及数据概览 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .graffiti-box {
      background: #fff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-brutal);
      position: relative;
    }

    .box-tag {
      display: inline-block;
      padding: 4px 10px;
      font-weight: 800;
      font-size: 0.8rem;
      border: 1.5px solid var(--border-dark);
      border-radius: 6px;
      margin-bottom: 12px;
    }

    .tag-yellow { background: var(--graffiti-yellow); }
    .tag-green { background: var(--graffiti-green); }
    .tag-cyan { background: var(--graffiti-cyan); }
    .tag-pink { background: var(--graffiti-pink); color: #fff; }

    /* 服务能力卡片与场景网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
      gap: 22px;
    }

    .service-card {
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-brutal);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translate(-3px, -3px);
      box-shadow: var(--shadow-brutal-hover);
    }

    .service-card-title {
      font-size: 1.2rem;
      font-weight: 900;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .service-card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .service-card-foot {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1.5px dashed #e2e8f0;
      padding-top: 12px;
    }

    /* 流程步骤 */
    .steps-wrapper {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-item {
      background: #fff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-brutal);
      position: relative;
    }

    .step-number {
      width: 36px;
      height: 36px;
      background: var(--graffiti-yellow);
      border: var(--border-thick);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
      margin-bottom: 16px;
      box-shadow: 2px 2px 0px var(--border-dark);
    }

    .step-item:nth-child(2) .step-number { background: var(--graffiti-cyan); }
    .step-item:nth-child(3) .step-number { background: var(--graffiti-pink); color: #fff; }
    .step-item:nth-child(4) .step-number { background: var(--graffiti-green); }

    /* 案例与素材图展示 */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      margin-bottom: 30px;
    }

    .case-card-img-wrap {
      background: #fff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 16px;
      box-shadow: var(--shadow-brutal);
    }

    .case-card-img-wrap img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-sm);
      border: 1.5px solid var(--border-dark);
      display: block;
      object-fit: cover;
    }

    .case-info-box {
      margin-top: 12px;
    }

    .case-title {
      font-weight: 800;
      font-size: 1.1rem;
      margin-bottom: 6px;
    }

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

    .img-sub-grid {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    /* 对比评测表格与卡片 */
    .review-summary-card {
      background: linear-gradient(135deg, #fff 0%, #fffdec 100%);
      border: var(--border-thick);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-brutal);
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

    .review-score-badge {
      display: flex;
      align-items: baseline;
      gap: 8px;
    }

    .score-num {
      font-size: 3.5rem;
      font-weight: 950;
      line-height: 1;
      color: var(--text-main);
    }

    .score-max {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--text-muted);
    }

    .stars-badge {
      background: var(--graffiti-yellow);
      border: var(--border-thick);
      padding: 6px 14px;
      font-weight: 900;
      border-radius: 999px;
      box-shadow: 2px 2px 0px var(--border-dark);
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #fff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-brutal);
    }

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }

    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1.5px solid #e2e8f0;
      font-size: 0.95rem;
    }

    .custom-table th {
      background: #f8fafc;
      font-weight: 900;
      border-bottom: var(--border-thick);
    }

    .highlight-col {
      background: rgba(255, 208, 0, 0.1);
      font-weight: 700;
    }

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

    .review-item-card {
      background: #fff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-brutal);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1.5px dashed #cbd5e1;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      border: var(--border-thick);
      background: var(--graffiti-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
    }

    .reviewer-name {
      font-weight: 800;
      font-size: 0.95rem;
    }

    .reviewer-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 常见问题 FAQ 手风琴 */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #fff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-brutal);
      overflow: hidden;
      transition: all 0.2s;
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 800;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #fff;
    }

    .faq-question:hover {
      background: #fafafa;
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 900;
      transition: transform 0.2s;
    }

    .faq-answer {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: all 0.3s cubic-bezier(0, 1, 0, 1);
      color: #334155;
      font-size: 0.95rem;
      line-height: 1.7;
      background: #fdfdfd;
      border-top: 0px solid transparent;
    }

    .faq-item.active .faq-answer {
      max-height: 500px;
      padding: 16px 24px 22px;
      border-top: 1.5px dashed #cbd5e1;
      transition: all 0.3s cubic-bezier(1, 0, 1, 0);
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* 需求匹配与咨询表单 */
    .form-section-wrapper {
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-brutal);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-label {
      font-weight: 800;
      font-size: 0.9rem;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      font-family: inherit;
      border: var(--border-thick);
      border-radius: var(--radius-sm);
      background: #f8fafc;
      outline: none;
      transition: all 0.2s;
    }

    .form-control:focus {
      background: #fff;
      box-shadow: 2px 2px 0px var(--border-dark);
      border-color: var(--border-dark);
    }

    textarea.form-control {
      min-height: 110px;
      resize: vertical;
    }

    .service-qrcode-wrap {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      background: #f8fafc;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
    }

    .service-qrcode-wrap img {
      max-width: 170px;
      height: auto;
      border: var(--border-thick);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      background: #fff;
    }

    /* 文章列表与资讯 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
      gap: 20px;
    }

    .article-item {
      background: #fff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-brutal);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform 0.2s ease;
    }

    .article-item:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-brutal-hover);
    }

    .article-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 3px 8px;
      background: #f1f5f9;
      border: 1.5px solid var(--border-dark);
      border-radius: 4px;
      margin-bottom: 10px;
    }

    .article-title {
      font-weight: 800;
      font-size: 1.05rem;
      line-height: 1.4;
      margin-bottom: 12px;
    }

    .article-meta {
      font-size: 0.85rem;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 标签云与模型展示 */
    .chips-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .cloud-tag {
      background: #fff;
      border: 1.5px solid var(--border-dark);
      padding: 6px 14px;
      border-radius: 999px;
      font-weight: 700;
      font-size: 0.85rem;
      box-shadow: 2px 2px 0px var(--border-dark);
    }

    /* 页脚设计 */
    .site-footer {
      background: #ffffff;
      border-top: var(--border-thick);
      padding: 60px 0 24px;
      margin-top: 70px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col-title {
      font-weight: 900;
      font-size: 1.05rem;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    .footer-links-list a:hover {
      color: var(--text-main);
      text-decoration: underline;
    }

    .friend-links-box {
      border-top: 1.5px dashed #cbd5e1;
      padding: 20px 0;
      margin-bottom: 24px;
      font-size: 0.85rem;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-top: 10px;
      font-weight: 700;
    }

    .friend-links-list a {
      color: var(--text-main);
      padding: 4px 10px;
      background: #f1f5f9;
      border: 1px solid var(--border-dark);
      border-radius: 4px;
      transition: background 0.2s;
    }

    .friend-links-list a:hover {
      background: var(--graffiti-yellow);
    }

    .footer-bottom-bar {
      text-align: center;
      border-top: var(--border-thick);
      padding-top: 20px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* 浮动组件 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 990;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #fff;
      border: var(--border-thick);
      box-shadow: 3px 3px 0px var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
      cursor: pointer;
      transition: all 0.2s;
      color: var(--text-main);
    }

    .float-btn:hover {
      transform: translateY(-2px);
      box-shadow: 4px 4px 0px var(--border-dark);
      background: var(--graffiti-yellow);
    }

    /* 响应式断点控制 */
    @media (max-width: 992px) {
      .hero-layout {
        grid-template-columns: 1fr;
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
      .steps-wrapper {
        grid-template-columns: 1fr 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .case-gallery-grid {
        grid-template-columns: 1fr;
      }
      .form-section-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: var(--border-thick);
        flex-direction: column;
        padding: 16px 20px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
        text-align: center;
      }
      .nav-links li a {
        display: block;
        padding: 10px;
      }
      .steps-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .hero-content h1 {
        font-size: 2.1rem;
      }
    }