/* 基础样式与 CSS 变量（炫彩荧光风） */
    :root {
      --bg-dark: #0a0b10;
      --bg-card: #121420;
      --bg-card-hover: #191c2c;
      --primary: #00ff66; /* 荧光绿 */
      --secondary: #00f0ff; /* 荧光蓝 */
      --accent: #bf00ff; /* 荧光紫 */
      --text-main: #ffffff;
      --text-muted: #8fa0dd;
      --border-color: rgba(0, 255, 102, 0.15);
      --border-hover: rgba(0, 240, 255, 0.4);
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      --container-max-width: 1200px;
    }

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

    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: var(--font-sans);
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* 全局滚动条样式 */
    ::-webkit-scrollbar {
      width: 8px;
      height: 8px;
    }
    ::-webkit-scrollbar-track {
      background: var(--bg-dark);
    }
    ::-webkit-scrollbar-thumb {
      background: var(--border-color);
      border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
      background: var(--secondary);
    }

    /* 容器体系 */
    .container {
      width: 100%;
      max-width: var(--container-max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(10, 11, 16, 0.9);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 80px;
    }

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

    .ai-page-logo {
      height: 40px;
      width: auto;
    }

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: 1px;
    }

    .nav-menu {
      display: flex;
      gap: 20px;
      list-style: none;
    }

    .nav-link {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 14px;
      font-weight: 500;
      transition: color 0.3s;
    }

    .nav-link:hover {
      color: var(--primary);
    }

    .nav-btn {
      background: transparent;
      border: 1px solid var(--primary);
      color: var(--primary);
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s;
      text-decoration: none;
    }

    .nav-btn:hover {
      background: var(--primary);
      color: var(--bg-dark);
      box-shadow: 0 0 15px rgba(0, 255, 66, 0.4);
    }

    /* 移动端菜单按钮 */
    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 6px;
      cursor: pointer;
      background: none;
      border: none;
    }

    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--primary);
      transition: 0.3s;
    }

    /* 炫彩首屏 Hero - 绝无图片 */
    .hero-section {
      padding: 120px 0 100px 0;
      position: relative;
      overflow: hidden;
      background: radial-gradient(circle at 80% 20%, rgba(191, 0, 255, 0.1), transparent 40%),
                  radial-gradient(circle at 10% 80%, rgba(0, 240, 255, 0.15), transparent 40%);
    }

    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
      position: relative;
      z-index: 2;
    }

    .hero-badge {
      display: inline-block;
      padding: 6px 16px;
      border-radius: 30px;
      background: rgba(0, 255, 102, 0.1);
      border: 1px solid rgba(0, 255, 102, 0.3);
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 24px;
      letter-spacing: 1px;
    }

    h1 {
      font-size: 48px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 24px;
      background: linear-gradient(135deg, #ffffff 30%, var(--secondary) 70%, var(--primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -1px;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 700px;
      margin: 0 auto 40px auto;
      line-height: 1.8;
    }

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

    .btn-main {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: var(--bg-dark);
      padding: 14px 32px;
      border-radius: 30px;
      font-size: 16px;
      font-weight: 700;
      text-decoration: none;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
      transition: all 0.3s;
    }

    .btn-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 30px rgba(0, 255, 102, 0.6);
    }

    .btn-sub {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-color);
      color: var(--text-main);
      padding: 14px 32px;
      border-radius: 30px;
      font-size: 16px;
      font-weight: 600;
      text-decoration: none;
      transition: all 0.3s;
    }

    .btn-sub:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--secondary);
    }

    /* 数据指标卡片 */
    .stats-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 60px;
    }

    .stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      text-align: center;
      transition: all 0.3s;
    }

    .stat-card:hover {
      border-color: var(--secondary);
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(0, 240, 255, 0.05);
    }

    .stat-num {
      font-size: 36px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .stat-label {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 通用块定义 */
    section {
      padding: 80px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .section-title {
      text-align: center;
      margin-bottom: 50px;
    }

    .section-title h2 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 12px;
      background: linear-gradient(135deg, var(--text-main), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-title p {
      color: var(--text-muted);
      font-size: 16px;
    }

    /* 服务能力卡片 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 30px;
      transition: all 0.3s;
    }

    .service-card:hover {
      border-color: var(--accent);
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(191, 0, 255, 0.1);
    }

    .service-icon {
      font-size: 40px;
      color: var(--secondary);
      margin-bottom: 20px;
    }

    .service-card h3 {
      font-size: 20px;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .service-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 一站式制作场景 */
    .scenes-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .scene-card {
      background: linear-gradient(135deg, rgba(25, 28, 44, 0.8), rgba(18, 20, 32, 0.8));
      border-radius: 12px;
      padding: 24px;
      border: 1px solid rgba(255, 255, 255, 0.05);
      transition: all 0.3s;
    }

    .scene-card:hover {
      border-color: var(--primary);
      transform: scale(1.02);
    }

    .scene-title {
      font-weight: 700;
      font-size: 18px;
      color: var(--primary);
      margin-bottom: 10px;
    }

    .scene-desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 技术支持平台标签云 */
    .tech-platforms {
      margin-top: 40px;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
    }

    .platform-tag {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 30px;
      padding: 8px 18px;
      font-size: 14px;
      color: var(--text-muted);
      transition: all 0.3s;
    }

    .platform-tag:hover {
      background: rgba(0, 240, 255, 0.1);
      border-color: var(--secondary);
      color: var(--secondary);
      transform: translateY(-2px);
    }

    /* 解决方案 / 服务网络 */
    .network-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .network-text ul {
      list-style: none;
      margin-top: 20px;
    }

    .network-text li {
      margin-bottom: 12px;
      position: relative;
      padding-left: 24px;
      color: var(--text-muted);
    }

    .network-text li::before {
      content: "✔";
      position: absolute;
      left: 0;
      color: var(--primary);
    }

    .network-visual {
      background: radial-gradient(circle, rgba(0,255,102,0.1) 0%, transparent 70%);
      border: 1px dashed var(--border-color);
      border-radius: 20px;
      padding: 40px;
      text-align: center;
    }

    /* 标准化AIGC流程 */
    .steps-container {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
    }

    .step-card {
      position: relative;
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 12px;
      padding: 20px;
      text-align: center;
    }

    .step-num {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--accent), var(--secondary));
      color: var(--text-main);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin: 0 auto 16px auto;
    }

    .step-name {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 对比评测表格 */
    .table-responsive {
      overflow-x: auto;
      margin-top: 30px;
      border: 1px solid var(--border-color);
      border-radius: 12px;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
      background: var(--bg-card);
    }

    th, td {
      padding: 16px 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    th {
      background: rgba(0, 255, 102, 0.05);
      color: var(--primary);
      font-weight: 700;
    }

    tr:hover {
      background: rgba(255, 255, 255, 0.02);
    }

    .highlight-td {
      background: rgba(0, 240, 255, 0.03);
      color: var(--secondary);
      font-weight: 600;
    }

    .score-badge {
      display: inline-block;
      background: linear-gradient(135deg, #ffcc00, #ff9900);
      color: #000;
      padding: 2px 10px;
      border-radius: 4px;
      font-weight: 800;
      font-size: 14px;
    }

    /* Token 比价 */
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .price-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      text-align: center;
    }

    .price-val {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      margin: 16px 0;
    }

    /* 客户案例中心 - 包含指定宣传图和素材图 */
    .case-gallery {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
    }

    .case-main {
      background: var(--bg-card);
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .case-main img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      display: block;
    }

    .case-side {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .case-item {
      background: var(--bg-card);
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.05);
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .case-item img {
      width: 100%;
      height: 140px;
      object-fit: cover;
      display: block;
    }

    .case-info {
      padding: 16px;
    }

    .case-info h4 {
      font-size: 16px;
      margin-bottom: 6px;
    }

    .case-info p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 职业与人工智能培训 */
    .train-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .train-card {
      background: linear-gradient(135deg, rgba(18, 20, 32, 0.6), rgba(10, 11, 16, 0.8));
      border: 1px solid rgba(191, 0, 255, 0.15);
      border-radius: 12px;
      padding: 20px;
      text-align: center;
      transition: all 0.3s;
    }

    .train-card:hover {
      border-color: var(--accent);
      box-shadow: 0 0 15px rgba(191, 0, 255, 0.3);
    }

    .train-icon {
      font-size: 28px;
      margin-bottom: 12px;
    }

    .train-title {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

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

    .comment-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 12px;
      padding: 24px;
    }

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

    .avatar-placeholder {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--bg-dark);
      font-size: 14px;
    }

    .comment-user {
      font-size: 14px;
      font-weight: 600;
    }

    .comment-role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 常见问题 FAQ 折叠面板 */
    .faq-wrapper {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      padding: 16px 0;
    }

    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      font-size: 16px;
      cursor: pointer;
      color: var(--text-main);
      padding: 10px 0;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 10px 0;
    }

    .faq-icon::after {
      content: '+';
      font-size: 20px;
      color: var(--primary);
    }

    .faq-item.active .faq-icon::after {
      content: '-';
    }

    /* 常见问题排查与术语 */
    .kb-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      margin-top: 40px;
    }

    .kb-col {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 12px;
      padding: 24px;
    }

    .kb-list {
      list-style: none;
      margin-top: 15px;
    }

    .kb-list li {
      margin-bottom: 10px;
      font-size: 14px;
    }

    .kb-list a {
      color: var(--secondary);
      text-decoration: none;
    }

    .kb-list a:hover {
      text-decoration: underline;
    }

    /* 行业资讯 & 最新文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-card {
      background: var(--bg-card);
      border-radius: 12px;
      padding: 20px;
      border: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-card h4 {
      font-size: 15px;
      margin-bottom: 12px;
      line-height: 1.5;
    }

    .article-link {
      color: var(--primary);
      text-decoration: none;
      font-size: 13px;
      font-weight: 600;
    }

    .article-link:hover {
      text-decoration: underline;
    }

    /* 联系我们 / 智能表单与加盟代理 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
    }

    .form-container {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 36px;
    }

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

    .form-group label {
      display: block;
      font-size: 14px;
      margin-bottom: 8px;
      color: var(--text-muted);
    }

    .form-control {
      width: 100%;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 8px;
      padding: 12px 16px;
      color: var(--text-main);
      font-family: inherit;
      font-size: 14px;
      transition: all 0.3s;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 8px rgba(0, 255, 102, 0.2);
    }

    .contact-info-panel {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .info-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 12px;
      padding: 24px;
      margin-bottom: 20px;
    }

    .kefu-qr-box {
      text-align: center;
      padding: 20px;
      background: rgba(255, 255, 255, 0.02);
      border-radius: 8px;
      margin-top: 15px;
    }

    .kefu-qr-box img {
      width: 130px;
      height: 130px;
      border-radius: 8px;
    }

    /* 浮动客服入口 */
    .float-kefu {
      position: fixed;
      right: 24px;
      bottom: 24px;
      z-index: 99;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: var(--bg-dark);
      width: 50px;
      height: 50px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(0, 240, 255, 0.4);
      transition: all 0.3s;
      font-weight: 800;
      font-size: 18px;
    }

    .float-kefu:hover {
      transform: scale(1.1) rotate(15deg);
    }

    .qr-popup {
      display: none;
      position: absolute;
      bottom: 60px;
      right: 0;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 16px;
      border-radius: 12px;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
      text-align: center;
      width: 180px;
    }

    .qr-popup img {
      width: 100%;
      height: auto;
      border-radius: 6px;
    }

    .float-kefu:hover .qr-popup {
      display: block;
    }

    /* 页脚 */
    footer {
      background: #06070a;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding: 60px 0 30px 0;
    }

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

    .footer-col h5 {
      font-size: 16px;
      color: var(--text-main);
      margin-bottom: 20px;
      font-weight: 700;
    }

    .footer-col ul {
      list-style: none;
    }

    .footer-col li {
      margin-bottom: 10px;
    }

    .footer-col a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 14px;
      transition: color 0.3s;
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .friendly-links {
      margin-top: 20px;
      font-size: 13px;
      color: var(--text-muted);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 20px;
    }

    .friendly-links a {
      color: var(--text-muted);
      text-decoration: none;
      margin-right: 15px;
      transition: color 0.3s;
    }

    .friendly-links a:hover {
      color: var(--secondary);
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .grid-3, .price-grid, .comments-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-container {
        grid-template-columns: repeat(3, 1fr);
      }
      .train-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--bg-dark);
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        z-index: 99;
      }
      .nav-menu.show {
        display: flex;
      }
      .stats-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .scenes-grid, .price-grid, .comments-grid, .steps-container, .train-grid {
        grid-template-columns: 1fr;
      }
      .network-container, .contact-wrapper, .kb-box, .case-gallery {
        grid-template-columns: 1fr;
      }
      .case-gallery {
        display: flex;
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      h1 {
        font-size: 32px;
      }
    }