/* 全局变量定义 - 桃红艳丽风 (Vivid Magenta / Rose Pink) */
    :root {
      --primary-color: #E6005C;
      --primary-hover: #FF1A75;
      --primary-light: #FFF0F5;
      --accent-color: #FF2A75;
      --secondary-color: #99003D;
      --text-main: #22181C;
      --text-muted: #5C4A52;
      --bg-body: #FFF8FA;
      --bg-card: #FFFFFF;
      --border-color: #FFCCE0;
      --shadow-sm: 0 4px 12px rgba(230, 0, 92, 0.06);
      --shadow-md: 0 8px 24px rgba(230, 0, 92, 0.12);
      --shadow-lg: 0 16px 36px rgba(230, 0, 92, 0.18);
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }

    * {
      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-body);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
    }

    /* 统一主容器 */
    .ai-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }

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

    a:hover {
      color: var(--primary-hover);
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: 30px;
      cursor: pointer;
      border: none;
      transition: var(--transition);
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #FF2A75 0%, #E6005C 100%);
      color: #FFFFFF !important;
      box-shadow: 0 6px 18px rgba(230, 0, 92, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(230, 0, 92, 0.4);
    }

    .btn-secondary {
      background: #FFFFFF;
      color: var(--primary-color) !important;
      border: 2px solid var(--border-color);
    }

    .btn-secondary:hover {
      background: var(--primary-light);
      border-color: var(--primary-color);
      transform: translateY(-2px);
    }

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

    .section-tag {
      display: inline-block;
      padding: 4px 16px;
      background: var(--primary-light);
      color: var(--primary-color);
      font-size: 13px;
      font-weight: 700;
      border-radius: 20px;
      margin-bottom: 12px;
      border: 1px solid var(--border-color);
      letter-spacing: 1px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      margin-top: 10px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .brand-logo img {
      height: 40px;
      width: auto;
    }

    /* 必须约束：.nav-links 的 gap 属性设置为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
      border-radius: 6px;
    }

    .nav-links li a:hover {
      color: var(--primary-color);
      background: var(--primary-light);
    }

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

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
    }

    /* 首屏 HERO (无图片约束) */
    .hero-section {
      padding: 80px 0 60px;
      background: radial-gradient(circle at 50% 20%, #FFE6EE 0%, #FFF8FA 70%);
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-content {
      max-width: 860px;
      margin: 0 auto;
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 30px;
      font-size: 14px;
      color: var(--primary-color);
      font-weight: 600;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(135deg, #FF2A75 0%, #99003D 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 36px;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

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

    .stat-card {
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid var(--border-color);
      padding: 20px 16px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      backdrop-filter: blur(5px);
    }

    .stat-num {
      font-size: 30px;
      font-weight: 800;
      color: var(--primary-color);
    }

    .stat-label {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 关于我们 / 平台介绍 */
    .about-section {
      padding: 80px 0;
      background: #FFFFFF;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 26px;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .about-text p {
      color: var(--text-muted);
      margin-bottom: 16px;
      font-size: 15px;
    }

    .about-features {
      list-style: none;
      margin-top: 24px;
    }

    .about-features li {
      position: relative;
      padding-left: 28px;
      margin-bottom: 12px;
      font-size: 15px;
      font-weight: 600;
    }

    .about-features li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--primary-color);
      font-weight: 900;
    }

    .about-image-card {
      background: var(--primary-light);
      padding: 16px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      text-align: center;
    }

    /* AIGC 服务矩阵 */
    .services-section {
      padding: 80px 0;
      background: var(--bg-body);
    }

    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-color);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: bold;
      margin-bottom: 18px;
    }

    .service-card h4 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .service-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 一站式制作与引擎 */
    .onestop-section {
      padding: 80px 0;
      background: #FFFFFF;
    }

    .onestop-box {
      background: linear-gradient(135deg, #FFF0F5 0%, #FFE6EE 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 40px;
    }

    .engine-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 20px;
    }

    .engine-tag {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      color: var(--secondary-color);
    }

    /* 行业解决方案 */
    .solutions-section {
      padding: 80px 0;
      background: var(--bg-body);
    }

    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .solution-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px;
    }

    .solution-card h4 {
      font-size: 20px;
      color: var(--primary-color);
      margin-bottom: 12px;
    }

    /* 服务网络与流程 */
    .workflow-section {
      padding: 80px 0;
      background: #FFFFFF;
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .step-item {
      text-align: center;
      padding: 24px;
      background: var(--primary-light);
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
    }

    .step-num {
      width: 40px;
      height: 40px;
      background: var(--primary-color);
      color: #FFF;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      font-weight: 800;
    }

    /* 案例中心 */
    .cases-section {
      padding: 80px 0;
      background: var(--bg-body);
    }

    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .case-card-body {
      padding: 20px;
    }

    /* 对比评测 - 5星 9.9分 */
    .rating-section {
      padding: 80px 0;
      background: #FFFFFF;
    }

    .rating-header-box {
      background: linear-gradient(135deg, #FF2A75 0%, #E6005C 100%);
      color: #FFFFFF;
      padding: 32px;
      border-radius: var(--radius);
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 32px;
    }

    .rating-score {
      font-size: 48px;
      font-weight: 900;
      line-height: 1;
    }

    .rating-stars {
      color: #FFD700;
      font-size: 24px;
      margin-top: 4px;
    }

    .compare-table-wrap {
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      background: #FFFFFF;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }

    .compare-table th {
      background: var(--primary-light);
      color: var(--text-main);
      font-weight: 700;
    }

    .compare-table tr.highlight-row {
      background: #FFF0F5;
      font-weight: 600;
    }

    /* Token 比价 */
    .tokens-section {
      padding: 80px 0;
      background: var(--bg-body);
    }

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

    .token-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      text-align: center;
    }

    .token-price {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary-color);
      margin: 12px 0;
    }

    /* 客户评论卡片 (6条) */
    .reviews-section {
      padding: 80px 0;
      background: #FFFFFF;
    }

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

    .review-card {
      background: var(--bg-body);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 16px;
    }

    .avatar-placeholder {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-color);
      color: #FFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }

    /* FAQ 折叠面板 */
    .faq-section {
      padding: 80px 0;
      background: var(--bg-body);
    }

    .faq-list {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 12px;
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFFFFF;
    }

    .faq-answer {
      padding: 0 24px 18px;
      color: var(--text-muted);
      font-size: 14px;
      display: none;
      line-height: 1.6;
    }

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

    .faq-item.active .faq-question {
      color: var(--primary-color);
    }

    /* 加盟代理模块 */
    .agency-section {
      padding: 80px 0;
      background: linear-gradient(135deg, #FFF0F5 0%, #FFE6EE 100%);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    /* 表单与联系模块 */
    .contact-section {
      padding: 80px 0;
      background: #FFFFFF;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }

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

    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
      background: #FFF8FA;
    }

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

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    .contact-info-box {
      background: var(--bg-body);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px;
    }

    .qr-wrap {
      margin-top: 20px;
      text-align: center;
    }

    .qr-wrap img {
      max-width: 160px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }

    /* 行业资讯与短代码展示 */
    .news-section {
      padding: 80px 0;
      background: var(--bg-body);
    }

    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      margin-bottom: 30px;
    }

    .banner-gallery img {
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }

    .article-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 20px;
    }

    .article-links a {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 13px;
    }

    /* 页脚 */
    .site-footer {
      background: #1F1A1C;
      color: #F0E6E9;
      padding: 60px 0 30px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h5 {
      color: #FFFFFF;
      font-size: 16px;
      margin-bottom: 16px;
    }

    .footer-col p, .footer-col a {
      color: #B5A8AC;
      font-size: 13px;
      line-height: 1.8;
    }

    .footer-col a:hover {
      color: var(--primary-hover);
    }

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 10px;
    }

    .friend-links a {
      color: #D4C3C8;
      font-size: 12px;
      background: rgba(255,255,255,0.05);
      padding: 4px 10px;
      border-radius: 4px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: #998A8E;
    }

    /* 浮动客服 */
    .float-kefu {
      position: fixed;
      right: 20px;
      bottom: 20px;
      z-index: 999;
      background: linear-gradient(135deg, #FF2A75 0%, #E6005C 100%);
      color: #FFF;
      width: 56px;
      height: 56px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-lg);
      cursor: pointer;
      font-size: 12px;
      font-weight: bold;
      text-align: center;
    }

    /* 响应式样式 */
    @media (max-width: 992px) {
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .steps-grid { grid-template-columns: repeat(2, 1fr); }
      .reviews-grid { grid-template-columns: repeat(1, 1fr); }
      .token-grid { grid-template-columns: repeat(1, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .about-grid, .contact-grid, .cases-grid, .solutions-grid { grid-template-columns: 1fr; }
      .banner-gallery { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.active { display: flex; }
      .mobile-menu-btn { display: block; }
      .hero-title { font-size: 28px; }
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .steps-grid { grid-template-columns: 1fr; }
      .services-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }