:root {
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --bg-cream: #FCFAF6;
      --bg-card: #FFFFFF;
      --border-dark: #1E293B;
      --text-main: #0F172A;
      --text-sub: #475569;
      --graffiti-yellow: #FFE853;
      --graffiti-orange: #FF6B4A;
      --graffiti-cyan: #38EF7D;
      --graffiti-purple: #B794F6;
      --graffiti-pink: #FF85A1;
      --graffiti-blue: #60A5FA;
      --shadow-pop: 4px 4px 0px var(--border-dark);
      --shadow-pop-lg: 6px 6px 0px var(--border-dark);
      --shadow-hover: 2px 2px 0px var(--border-dark);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

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

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-cream);
      color: var(--text-main);
      font-family: var(--font-stack);
      line-height: 1.6;
    }

    body {
      background-color: var(--bg-cream);
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(255, 232, 83, 0.25) 0%, transparent 25%),
        radial-gradient(circle at 90% 60%, rgba(56, 239, 125, 0.2) 0%, transparent 30%),
        radial-gradient(circle at 50% 90%, rgba(255, 107, 74, 0.15) 0%, transparent 25%);
      background-attachment: fixed;
      min-height: 100vh;
      overflow-x: hidden;
    }

    /* 容器规范：统一一套居中体系 */
    .site-container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 多彩涂鸦风基础类 */
    .pop-card {
      background: var(--bg-card);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-pop);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .pop-card:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-pop-lg);
    }

    .pop-badge {
      display: inline-block;
      font-weight: 700;
      font-size: 0.82rem;
      padding: 4px 12px;
      border: 2px solid var(--border-dark);
      border-radius: 999px;
      background: var(--graffiti-yellow);
      box-shadow: 2px 2px 0px var(--border-dark);
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 700;
      font-size: 1rem;
      padding: 12px 26px;
      border-radius: var(--radius-sm);
      border: 2px solid var(--border-dark);
      cursor: pointer;
      text-decoration: none;
      transition: all 0.2s ease;
      white-space: nowrap;
    }

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

    .btn:active {
      transform: translate(1px, 1px);
      box-shadow: var(--shadow-hover);
    }

    .btn-main {
      background: var(--graffiti-yellow);
      color: var(--text-main);
      box-shadow: var(--shadow-pop);
    }

    .btn-action {
      background: var(--graffiti-orange);
      color: #FFFFFF;
      box-shadow: var(--shadow-pop);
    }

    .btn-outline {
      background: #FFFFFF;
      color: var(--text-main);
      box-shadow: var(--shadow-pop);
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(252, 250, 246, 0.96);
      backdrop-filter: blur(8px);
      border-bottom: 2px solid var(--border-dark);
    }

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

    .brand-group {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .brand-logo-wrap {
      width: 44px;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--graffiti-yellow);
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      box-shadow: 2px 2px 0 var(--border-dark);
      overflow: hidden;
    }

    .brand-text {
      font-size: 1.25rem;
      font-weight: 900;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    /* 必须显式声明 gap 为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
      margin: 0;
      padding: 0;
    }

    .nav-links li {
      margin: 0 4px;
    }

    .nav-links a {
      display: inline-block;
      text-decoration: none;
      font-weight: 600;
      font-size: 0.92rem;
      color: var(--text-main);
      padding: 6px 12px;
      border-radius: 6px;
      border: 2px solid transparent;
      transition: all 0.2s ease;
    }

    .nav-links a:hover {
      background: #FFFFFF;
      border-color: var(--border-dark);
      box-shadow: 2px 2px 0 var(--border-dark);
      transform: translateY(-1px);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .menu-toggle {
      display: none;
      background: #FFFFFF;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      padding: 8px;
      cursor: pointer;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    /* 章节通用标题 */
    .section-spacing {
      padding: 72px 0;
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 44px;
    }

    .section-head h2 {
      font-size: 2rem;
      font-weight: 900;
      color: var(--text-main);
      margin: 12px 0 8px;
      position: relative;
      display: inline-block;
    }

    .section-head h2::after {
      content: "";
      position: absolute;
      bottom: -4px;
      left: 10%;
      width: 80%;
      height: 6px;
      background: var(--graffiti-yellow);
      border-radius: 3px;
      z-index: -1;
    }

    .section-head p {
      color: var(--text-sub);
      font-size: 1rem;
    }

    /* 首屏 Hero - 严格禁止图片 */
    .hero-section {
      padding: 64px 0 72px;
      text-align: center;
      position: relative;
    }

    .hero-container {
      max-width: 980px;
      margin: 0 auto;
    }

    .hero-chip-bar {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

    .hero-title-highlight {
      background: linear-gradient(180deg, transparent 65%, var(--graffiti-yellow) 65%);
      display: inline-block;
      padding: 0 4px;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-sub);
      max-width: 780px;
      margin: 0 auto 32px;
      line-height: 1.7;
    }

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

    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 36px;
    }

    .metric-card {
      padding: 20px 16px;
      text-align: center;
      background: #FFFFFF;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-pop);
    }

    .metric-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.1;
    }

    .metric-label {
      font-size: 0.88rem;
      color: var(--text-sub);
      font-weight: 600;
      margin-top: 4px;
    }

    .model-tag-wall {
      margin-top: 36px;
      padding: 16px 20px;
      background: rgba(255, 255, 255, 0.85);
      border: 2px dashed var(--border-dark);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 10px;
    }

    .model-tag {
      font-size: 0.82rem;
      font-weight: 700;
      padding: 4px 10px;
      background: #FFFFFF;
      border: 1.5px solid var(--border-dark);
      border-radius: 6px;
      box-shadow: 1.5px 1.5px 0 var(--border-dark);
    }

    /* 平台介绍板块 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      align-items: stretch;
    }

    .intro-main-card {
      padding: 36px;
      background: #FFFFFF;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .intro-main-card h3 {
      font-size: 1.6rem;
      font-weight: 900;
      margin: 12px 0 16px;
    }

    .intro-main-card p {
      color: var(--text-sub);
      margin-bottom: 20px;
      font-size: 0.98rem;
      line-height: 1.7;
    }

    .intro-sub-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .intro-sub-item {
      padding: 22px;
      background: #FFFFFF;
    }

    .intro-sub-item h4 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .intro-sub-item p {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    /* AIGC服务与一站式制作场景卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .service-card {
      padding: 24px;
      background: #FFFFFF;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }

    .service-card-top {
      margin-bottom: 16px;
    }

    .service-icon-box {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      border: 2px solid var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 14px;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    .service-tag {
      margin-top: 16px;
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--text-main);
      background: #F1F5F9;
      display: inline-block;
      padding: 3px 8px;
      border-radius: 4px;
      border: 1px solid var(--border-dark);
    }

    /* 案例中心图文展示 */
    .gallery-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      margin-bottom: 24px;
    }

    .gallery-banner-card {
      padding: 20px;
      background: #FFFFFF;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .media-frame {
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: var(--shadow-pop);
      background: #E2E8F0;
      line-height: 0;
    }

    .media-frame img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.3s ease;
    }

    .media-frame:hover img {
      transform: scale(1.02);
    }

    .banner-trio {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 16px;
    }

    /* 对比评测板块 */
    .evaluation-box {
      background: #FFFFFF;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-pop-lg);
      padding: 36px;
      margin-bottom: 30px;
    }

    .eval-score-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 24px;
      border-bottom: 2px dashed var(--border-dark);
      margin-bottom: 24px;
    }

    .score-badge-area {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-giant {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--border-dark);
      line-height: 1;
      background: var(--graffiti-yellow);
      padding: 8px 18px;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      box-shadow: 3px 3px 0 var(--border-dark);
    }

    .score-detail h3 {
      font-size: 1.35rem;
      font-weight: 900;
      margin-bottom: 4px;
    }

    .star-string {
      font-size: 1.25rem;
      color: #EAB308;
    }

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

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

    .eval-table th, .eval-table td {
      padding: 14px 16px;
      border-bottom: 1px solid #E2E8F0;
      font-size: 0.95rem;
    }

    .eval-table th {
      background: #F8FAFC;
      font-weight: 800;
      border-bottom: 2px solid var(--border-dark);
    }

    .eval-table tr:hover td {
      background: rgba(255, 232, 83, 0.12);
    }

    .highlight-cell {
      font-weight: 700;
      color: #0F172A;
      background: rgba(56, 239, 125, 0.15);
    }

    /* 流程与行业方案 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .step-card {
      padding: 24px 20px;
      background: #FFFFFF;
      position: relative;
    }

    .step-number {
      position: absolute;
      top: 14px;
      right: 14px;
      font-size: 1.8rem;
      font-weight: 900;
      color: #CBD5E1;
      line-height: 1;
    }

    .step-card h3 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    /* 需求匹配与表单板块 */
    .contact-form-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 28px;
      align-items: stretch;
    }

    .form-panel {
      padding: 36px;
      background: #FFFFFF;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      font-family: inherit;
      font-size: 0.95rem;
      background: #FAFBFD;
      outline: none;
      transition: all 0.2s ease;
    }

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

    .contact-info-panel {
      padding: 36px;
      background: var(--graffiti-yellow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .qr-showcase {
      display: flex;
      align-items: center;
      gap: 20px;
      background: #FFFFFF;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 16px;
      box-shadow: var(--shadow-pop);
      margin: 20px 0;
    }

    .qr-img-box {
      width: 100px;
      height: 100px;
      flex-shrink: 0;
      border: 1px solid var(--border-dark);
      border-radius: 6px;
      overflow: hidden;
      line-height: 0;
    }

    .qr-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .contact-list-text {
      list-style: none;
      font-size: 0.92rem;
      font-weight: 600;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    /* 用户评论 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .testimonial-card {
      padding: 24px;
      background: #FFFFFF;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-body {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 16px;
      font-style: italic;
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed #CBD5E1;
      padding-top: 12px;
    }

    .user-avatar-tag {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--graffiti-cyan);
      border: 2px solid var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1rem;
    }

    .user-meta h4 {
      font-size: 0.95rem;
      font-weight: 800;
      line-height: 1.2;
    }

    .user-meta span {
      font-size: 0.78rem;
      color: var(--text-sub);
    }

    /* FAQ 常见问题折叠面板 */
    .faq-stack {
      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-pop);
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-question {
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-weight: 800;
      font-size: 1.02rem;
      cursor: pointer;
      user-select: none;
      background: #FFFFFF;
    }

    .faq-question:hover {
      background: #FAF8F5;
    }

    .faq-icon-arrow {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      border: 2px solid var(--border-dark);
      background: var(--graffiti-yellow);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      transition: transform 0.25s ease;
      flex-shrink: 0;
    }

    .faq-answer {
      display: none;
      padding: 0 22px 18px;
      color: var(--text-sub);
      font-size: 0.94rem;
      line-height: 1.65;
      border-top: 1px dashed #E2E8F0;
      padding-top: 14px;
    }

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

    .faq-item.active .faq-icon-arrow {
      transform: rotate(45deg);
      background: var(--graffiti-orange);
      color: #FFFFFF;
    }

    /* 资讯与友情链接 */
    .articles-box {
      padding: 24px;
      background: #FFFFFF;
      margin-bottom: 24px;
    }

    .article-link-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 14px;
    }

    .article-link-item {
      text-decoration: none;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      background: #F8FAFC;
      border: 1.5px solid var(--border-dark);
      padding: 6px 14px;
      border-radius: 6px;
      box-shadow: 2px 2px 0 var(--border-dark);
      transition: all 0.2s ease;
    }

    .article-link-item:hover {
      background: var(--graffiti-cyan);
      transform: translateY(-2px);
    }

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

    .friendly-links-wrap a {
      text-decoration: none;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      background: #FFFFFF;
      border: 1.5px solid var(--border-dark);
      padding: 5px 12px;
      border-radius: 6px;
      box-shadow: 2px 2px 0 var(--border-dark);
      transition: all 0.2s ease;
    }

    .friendly-links-wrap a:hover {
      background: var(--graffiti-yellow);
      transform: translate(-1px, -1px);
    }

    /* 页脚 */
    .site-footer {
      background: #F1EFEA;
      border-top: 2px solid var(--border-dark);
      padding: 48px 0 32px;
      margin-top: 40px;
    }

    .footer-content {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-brand h4 {
      font-size: 1.25rem;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
      max-width: 440px;
    }

    .footer-col h5 {
      font-size: 0.98rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-col a {
      text-decoration: none;
      color: var(--text-sub);
      font-size: 0.88rem;
      transition: color 0.2s;
    }

    .footer-col a:hover {
      color: var(--text-main);
      font-weight: 700;
    }

    .footer-bottom-bar {
      border-top: 1px solid #CBD5E1;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* 浮动工具栏 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 990;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      background: #FFFFFF;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      box-shadow: 3px 3px 0 var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      font-size: 1.2rem;
      cursor: pointer;
      transition: all 0.2s ease;
      color: var(--text-main);
    }

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

    /* 响应式样式 */
    @media (max-width: 1024px) {
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .testimonial-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 2rem;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        border-bottom: 2px solid var(--border-dark);
        padding: 16px 20px;
        flex-direction: column;
        align-items: flex-start;
        box-shadow: 0 8px 0 rgba(0,0,0,0.06);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
        margin: 6px 0;
      }
      .nav-links a {
        display: block;
        width: 100%;
      }
      .intro-grid, .gallery-grid, .contact-form-grid, .footer-content {
        grid-template-columns: 1fr;
      }
      .intro-sub-grid {
        grid-template-columns: 1fr;
      }
      .services-grid {
        grid-template-columns: 1fr;
      }
      .banner-trio {
        grid-template-columns: 1fr;
      }
      .score-badge-area {
        flex-direction: column;
        align-items: flex-start;
      }
      .footer-bottom-bar {
        flex-direction: column;
        text-align: center;
      }
    }