:root {
      --primary: #5c3bff;
      --primary-hover: #4829e0;
      --accent-pink: #ff3b7e;
      --accent-yellow: #ffcf24;
      --accent-cyan: #00d2d3;
      --accent-green: #10b981;
      --text-dark: #1e1b38;
      --text-muted: #5e597c;
      --bg-page: #fbfaff;
      --bg-card: #ffffff;
      --border-color: #ede9fe;
      --border-graffiti: #1e1b38;
      --shadow-pop: 4px 4px 0px #1e1b38;
      --shadow-pop-sm: 2px 2px 0px #1e1b38;
      --shadow-pop-hover: 6px 6px 0px #1e1b38;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-dark);
      line-height: 1.6;
      background-image: radial-gradient(#d8b4fe 0.8px, transparent 0.8px), radial-gradient(#bae6fd 0.8px, var(--bg-page) 0.8px);
      background-size: 32px 32px;
      background-position: 0 0, 16px 16px;
      overflow-x: hidden;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }

    /* 顶部导航 */
    header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      border-bottom: 2px solid var(--border-graffiti);
      backdrop-filter: blur(8px);
    }

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

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

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

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links a {
      padding: 8px 14px;
      font-weight: 700;
      font-size: 15px;
      color: var(--text-dark);
      border-radius: var(--radius-sm);
    }

    .nav-links a:hover {
      background: var(--accent-yellow);
      color: var(--text-dark);
      box-shadow: var(--shadow-pop-sm);
      transform: translate(-1px, -1px);
    }

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

    .btn-graffiti {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-weight: 800;
      font-size: 15px;
      color: #fff;
      background: var(--primary);
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-pop);
      cursor: pointer;
      white-space: nowrap;
      transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    }

    .btn-graffiti:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-pop-hover);
      background: var(--primary-hover);
      color: #fff;
    }

    .btn-yellow {
      background: var(--accent-yellow);
      color: var(--text-dark);
    }
    .btn-yellow:hover {
      background: #facc15;
      color: var(--text-dark);
    }

    .btn-pink {
      background: var(--accent-pink);
      color: #fff;
    }
    .btn-pink:hover {
      background: #e11d48;
      color: #fff;
    }

    /* 移动端菜单按钮 */
    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: 2px solid var(--border-graffiti);
      padding: 6px 10px;
      font-weight: bold;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-pop-sm);
      cursor: pointer;
    }

    /* Section 通用规范 */
    section {
      padding: 60px 0;
      position: relative;
    }

    .section-head {
      text-align: center;
      margin-bottom: 40px;
    }

    .badge-doodle {
      display: inline-block;
      padding: 4px 12px;
      font-size: 13px;
      font-weight: 800;
      text-transform: uppercase;
      background: var(--accent-cyan);
      color: var(--text-dark);
      border: 2px solid var(--border-graffiti);
      border-radius: 999px;
      box-shadow: var(--shadow-pop-sm);
      margin-bottom: 12px;
      transform: rotate(-1.5deg);
    }

    .badge-pink {
      background: var(--accent-pink);
      color: #fff;
      transform: rotate(1deg);
    }

    .section-title {
      font-size: 32px;
      font-weight: 900;
      color: var(--text-dark);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto;
    }

    /* Hero 首屏 (无图片) */
    .hero-section {
      padding: 70px 0 50px 0;
      background: linear-gradient(180deg, rgba(243, 232, 255, 0.4) 0%, rgba(251, 250, 255, 0) 100%);
      border-bottom: 2px dashed #cbd5e1;
    }

    .hero-wrap {
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-h1 {
      font-size: 44px;
      font-weight: 900;
      letter-spacing: -0.5px;
      color: var(--text-dark);
      line-height: 1.25;
      margin-bottom: 20px;
      text-shadow: 1px 1px 0px #fff;
    }

    .hero-h1 span.hl-yellow {
      background: var(--accent-yellow);
      padding: 0 8px;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-pop-sm);
      display: inline-block;
      transform: rotate(-1deg);
    }

    .hero-h1 span.hl-pink {
      background: var(--accent-pink);
      color: #fff;
      padding: 0 8px;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-pop-sm);
      display: inline-block;
      transform: rotate(1.5deg);
    }

    .hero-sub {
      font-size: 18px;
      color: var(--text-muted);
      margin-bottom: 30px;
      line-height: 1.6;
    }

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

    .hero-features-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .h-feat-card {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-md);
      padding: 16px;
      box-shadow: var(--shadow-pop);
      text-align: left;
      transition: transform 0.2s ease;
    }
    .h-feat-card:hover {
      transform: translateY(-4px);
    }
    .h-feat-card .num {
      font-size: 24px;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .h-feat-card .title {
      font-weight: 800;
      font-size: 16px;
      margin-bottom: 4px;
    }
    .h-feat-card .desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 平台介绍 */
    .about-box {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-pop);
    }
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }
    .about-text h3 {
      font-size: 24px;
      font-weight: 900;
      margin-bottom: 16px;
    }
    .about-text p {
      color: var(--text-muted);
      margin-bottom: 14px;
      font-size: 15px;
    }
    .about-highlights {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 20px;
    }
    .hl-item {
      background: #f8fafc;
      border: 1.5px solid var(--border-graffiti);
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      font-size: 14px;
      font-weight: 700;
      box-shadow: var(--shadow-pop-sm);
    }
    .about-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }
    .model-chip {
      background: #fff;
      border: 1.5px solid var(--border-graffiti);
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 700;
      box-shadow: 2px 2px 0px rgba(0,0,0,0.1);
    }

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

    .service-card {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-pop);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.2s ease;
    }
    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-pop-hover);
    }
    .service-tag {
      align-self: flex-start;
      font-size: 12px;
      font-weight: 800;
      padding: 2px 8px;
      border: 1.5px solid var(--border-graffiti);
      border-radius: 4px;
      background: var(--accent-yellow);
      margin-bottom: 12px;
    }
    .service-title {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .service-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 行业方案与流程 */
    .steps-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      position: relative;
    }
    .step-box {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-pop);
      text-align: center;
    }
    .step-index {
      width: 42px;
      height: 42px;
      margin: 0 auto 12px auto;
      border: 2px solid var(--border-graffiti);
      background: var(--accent-pink);
      color: #fff;
      font-weight: 900;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-pop-sm);
    }
    .step-title {
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 6px;
    }
    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 案例中心图文展示 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .case-card {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-pop);
    }
    .case-img-wrap {
      width: 100%;
      height: 240px;
      background: #e2e8f0;
      overflow: hidden;
      border-bottom: 2px solid var(--border-graffiti);
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }
    .case-info {
      padding: 20px;
    }
    .case-title {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .case-desc {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 对比评测板块 */
    .eval-box {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-pop);
    }
    .eval-badge-group {
      display: flex;
      gap: 16px;
      justify-content: center;
      margin-bottom: 24px;
      flex-wrap: wrap;
    }
    .eval-pill {
      background: var(--accent-yellow);
      border: 2px solid var(--border-graffiti);
      padding: 8px 18px;
      font-size: 16px;
      font-weight: 900;
      border-radius: 999px;
      box-shadow: var(--shadow-pop-sm);
    }
    .table-responsive {
      overflow-x: auto;
    }
    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .eval-table th, .eval-table td {
      padding: 14px 16px;
      border: 1.5px solid var(--border-graffiti);
      font-size: 14px;
    }
    .eval-table th {
      background: #f1f5f9;
      font-weight: 800;
    }
    .eval-table tr:nth-child(even) td {
      background: #fafafa;
    }
    .eval-table .highlight-cell {
      background: #ecfdf5 !important;
      font-weight: 800;
      color: #065f46;
    }

    /* 需求匹配与表单 */
    .form-box {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-pop);
      max-width: 800px;
      margin: 0 auto;
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
      text-align: left;
    }
    .form-group.full {
      grid-column: 1 / -1;
    }
    .form-label {
      font-size: 14px;
      font-weight: 800;
    }
    .form-control {
      padding: 10px 14px;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
      background: #f8fafc;
    }
    .form-control:focus {
      background: #fff;
      border-color: var(--primary);
    }
    textarea.form-control {
      min-height: 100px;
      resize: vertical;
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-pop);
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
    }
    .review-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: 2px solid var(--border-graffiti);
      background: var(--accent-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      color: var(--text-dark);
    }
    .review-role {
      font-size: 13px;
      font-weight: 800;
      color: var(--primary);
    }
    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* FAQ 手风琴 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-pop-sm);
      overflow: hidden;
    }
    .faq-question {
      padding: 16px 20px;
      font-weight: 800;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #fff;
    }
    .faq-question:hover {
      background: #f8fafc;
    }
    .faq-answer {
      padding: 0 20px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.25s ease, padding 0.25s ease;
      font-size: 14px;
      color: var(--text-muted);
      background: #fdfdfd;
      border-top: 1px dashed transparent;
    }
    .faq-item.active .faq-answer {
      padding: 14px 20px 18px 20px;
      max-height: 200px;
      border-top: 1.5px dashed var(--border-graffiti);
    }
    .faq-icon {
      font-size: 18px;
      transition: transform 0.2s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* 文章列表 & 宣传横幅 */
    .articles-box {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-pop);
      margin-bottom: 40px;
    }
    .article-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }
    .article-item {
      background: #f8fafc;
      border: 1.5px solid var(--border-graffiti);
      border-radius: var(--radius-sm);
      padding: 8px 16px;
      font-size: 14px;
      font-weight: 700;
      box-shadow: var(--shadow-pop-sm);
    }
    .article-item:hover {
      background: var(--accent-yellow);
      transform: translate(-2px, -2px);
    }

    .banner-strip {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 24px;
    }
    .banner-img-wrap {
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-pop);
      height: 180px;
    }
    .banner-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    /* 联系我们与加盟代理 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .contact-card {
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-pop);
      text-align: center;
    }
    .qr-container {
      width: 140px;
      height: 140px;
      margin: 16px auto;
      border: 2px solid var(--border-graffiti);
      border-radius: var(--radius-sm);
      overflow: hidden;
      padding: 4px;
      background: #fff;
      box-shadow: var(--shadow-pop-sm);
    }
    .qr-container img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: block;
    }

    /* 友情链接与页脚 */
    footer {
      background: #ffffff;
      border-top: 2px solid var(--border-graffiti);
      padding: 40px 0 20px 0;
      margin-top: 40px;
      color: var(--text-dark);
    }
    .footer-content {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 30px;
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .footer-links-group h5 {
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .footer-links-group ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-links-group a {
      font-size: 14px;
      color: var(--text-muted);
    }
    .footer-links-group a:hover {
      color: var(--primary);
      text-decoration: underline;
    }
    .friend-links-box {
      border-top: 1.5px dashed var(--border-graffiti);
      padding-top: 20px;
      margin-bottom: 20px;
      font-size: 14px;
    }
    .friend-links-box span {
      font-weight: 800;
      margin-right: 12px;
    }
    .friend-links-box a {
      margin-right: 14px;
      color: var(--text-muted);
      display: inline-block;
      margin-bottom: 6px;
    }
    .friend-links-box a:hover {
      color: var(--primary);
    }
    .copyright-bar {
      text-align: center;
      font-size: 13px;
      color: var(--text-muted);
      border-top: 1px solid #e2e8f0;
      padding-top: 16px;
    }

    /* 悬浮小组件 */
    .float-dock {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .dock-btn {
      width: 48px;
      height: 48px;
      background: #fff;
      border: 2px solid var(--border-graffiti);
      border-radius: 50%;
      box-shadow: var(--shadow-pop);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 18px;
      font-weight: 900;
      transition: transform 0.15s ease;
    }
    .dock-btn:hover {
      transform: scale(1.1);
    }
    .dock-kefu {
      background: var(--accent-yellow);
    }

    /* 响应式适配 */
    @media (max-width: 992px) {
      .cards-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-features-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-content {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 2px solid var(--border-graffiti);
        flex-direction: column;
        padding: 16px;
        box-shadow: 0 8px 16px rgba(0,0,0,0.1);
      }
      .nav-links.show {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .cards-grid, .case-grid, .reviews-grid, .steps-container, .hero-features-bar, .banner-strip {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .footer-content {
        grid-template-columns: 1fr;
      }
      .section-title {
        font-size: 26px;
      }
    }