/* 全局 CSS 样式与重置 */
    :root {
      --primary: #4f46e5;
      --secondary: #ff007a;
      --accent: #00f2fe;
      --dark: #0f172a;
      --light: #f8fafc;
      --gray-text: #475569;
      --border-color: #e2e8f0;
      --neon-gradient: linear-gradient(135deg, #4f46e5 0%, #ff007a 50%, #00f2fe 100%);
      --soft-gradient: linear-gradient(135deg, rgba(80, 70, 229, 0.04) 0%, rgba(255, 0, 122, 0.04) 100%);
    }

    * {
      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;
      color: var(--dark);
      background-color: var(--light);
    }

    body {
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* 居中主容器规范 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 标题与字号规范 */
    h1, h2, h3, h4, h5, h6 {
      font-weight: 800;
      line-height: 1.25;
      color: var(--dark);
    }

    h1 {
      font-size: 2.25rem;
      letter-spacing: -0.025em;
    }

    h2 {
      font-size: 2rem;
      text-align: center;
      margin-bottom: 2rem;
      position: relative;
    }

    h2::after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background: var(--neon-gradient);
      margin: 10px auto 0;
      border-radius: 2px;
    }

    p {
      color: var(--gray-text);
      font-size: 1rem;
    }

    a {
      text-decoration: none;
      color: var(--primary);
      transition: all 0.3s ease;
    }

    /* 按钮样式 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.75rem 1.75rem;
      font-weight: 600;
      border-radius: 50px;
      transition: all 0.3s ease;
      cursor: pointer;
      border: none;
      font-size: 0.95rem;
    }

    .btn-gradient {
      background: var(--neon-gradient);
      color: #fff !important;
      background-size: 200% auto;
      box-shadow: 0 10px 20px -10px rgba(79, 70, 229, 0.5);
    }

    .btn-gradient:hover {
      background-position: right center;
      transform: translateY(-2px);
      box-shadow: 0 12px 24px -8px rgba(255, 0, 122, 0.6);
    }

    .btn-outline {
      background: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background: var(--primary);
      color: #fff !important;
      transform: translateY(-2px);
    }

    /* 装饰性背景光效 */
    .glow-bg {
      position: absolute;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(79, 70, 229, 0.15) 0%, rgba(255, 0, 122, 0.05) 70%, transparent 100%);
      filter: blur(50px);
      pointer-events: none;
      z-index: 0;
    }

    /* 导航栏 */
    header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      z-index: 1000;
      transition: all 0.3s ease;
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

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

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

    .nav-links {
      display: flex;
      gap: 20px;
      align-items: center;
    }

    .nav-links a {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--dark);
    }

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

    .menu-toggle {
      display: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--dark);
    }

    /* 全局区块基础样式 */
    section {
      padding: 80px 0;
      position: relative;
      overflow: hidden;
    }

    .section-light {
      background-color: #fff;
    }

    .section-gray {
      background-color: var(--light);
      background-image: var(--soft-gradient);
    }

    /* 1. Hero 首屏 - 高饱和艳彩氛围无图片 */
    #hero {
      padding-top: 150px;
      padding-bottom: 100px;
      background: radial-gradient(ellipse at top right, rgba(0, 242, 254, 0.15), transparent 60%),
                  radial-gradient(ellipse at bottom left, rgba(255, 0, 122, 0.1), transparent 60%);
      text-align: center;
    }

    .hero-tag {
      display: inline-block;
      padding: 6px 16px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(255, 0, 122, 0.1) 100%);
      border: 1px solid rgba(79, 70, 229, 0.2);
      color: var(--primary);
      font-weight: 700;
      font-size: 0.85rem;
      border-radius: 30px;
      margin-bottom: 1.5rem;
    }

    .hero-title {
      font-size: 3rem;
      font-weight: 900;
      background: var(--neon-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 1.5rem;
      line-height: 1.2;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      max-width: 800px;
      margin: 0 auto 2.5rem;
      color: var(--gray-text);
    }

    .hero-btns {
      display: flex;
      gap: 15px;
      justify-content: center;
      flex-wrap: wrap;
      margin-bottom: 3.5rem;
    }

    /* 2. 数据指标卡片 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      margin-top: 2rem;
    }

    .stat-card {
      background: #fff;
      padding: 30px 20px;
      border-radius: 16px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
      position: relative;
    }

    .stat-card:hover {
      transform: translateY(-5px);
      border-color: var(--secondary);
    }

    .stat-number {
      font-size: 2.5rem;
      font-weight: 900;
      background: var(--neon-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1;
      margin-bottom: 8px;
    }

    .stat-label {
      font-size: 0.95rem;
      font-weight: bold;
      color: var(--dark);
    }

    .stat-desc {
      font-size: 0.8rem;
      color: var(--gray-text);
      margin-top: 5px;
    }

    /* 3. 关于我们 */
    .about-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .about-img-box {
      position: relative;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    }

    .about-img-box img {
      width: 100%;
      display: block;
      transition: transform 0.5s ease;
    }

    .about-img-box:hover img {
      transform: scale(1.05);
    }

    .about-content h3 {
      font-size: 1.75rem;
      margin-bottom: 1rem;
      color: var(--primary);
    }

    .about-feature-list {
      margin-top: 1.5rem;
      list-style: none;
    }

    .about-feature-list li {
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 600;
    }

    .about-feature-list li::before {
      content: '✓';
      color: var(--secondary);
      font-weight: bold;
    }

    /* 4. 全平台AIGC服务 */
    .grid-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }

    .service-card {
      background: #fff;
      padding: 30px;
      border-radius: 20px;
      border: 1px solid var(--border-color);
      box-shadow: 0 10px 20px rgba(0,0,0,0.02);
      transition: all 0.3s ease;
    }

    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 40px rgba(79, 70, 229, 0.1);
      border-color: var(--primary);
    }

    .service-icon {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(0, 242, 254, 0.1) 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--primary);
      font-size: 1.5rem;
      font-weight: bold;
    }

    .service-title {
      font-size: 1.25rem;
      margin-bottom: 10px;
    }

    /* 5. 一站式AIGC制作 & 解决方案 */
    .solution-tabs-nav {
      display: flex;
      justify-content: center;
      gap: 15px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }

    .tab-btn {
      padding: 10px 25px;
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: 30px;
      cursor: pointer;
      font-weight: 600;
      transition: all 0.3s ease;
    }

    .tab-btn.active, .tab-btn:hover {
      background: var(--neon-gradient);
      color: #fff;
      border-color: transparent;
    }

    .solution-content {
      display: none;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      align-items: center;
    }

    .solution-content.active {
      display: grid;
    }

    .solution-text h3 {
      font-size: 1.75rem;
      margin-bottom: 15px;
    }

    .solution-badge {
      display: inline-block;
      padding: 4px 12px;
      background: var(--accent);
      color: var(--dark);
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: bold;
      margin-bottom: 10px;
    }

    /* 6. 标准化AIGC流程 */
    .flow-steps {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      position: relative;
      flex-wrap: wrap;
    }

    .flow-step {
      flex: 1;
      min-width: 200px;
      background: #fff;
      padding: 30px 20px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      position: relative;
      text-align: center;
      z-index: 2;
    }

    .flow-num {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--neon-gradient);
      color: #fff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 15px;
    }

    /* 7. 客户案例中心 - 素材图展示 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 30px;
    }

    .case-card {
      background: #fff;
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: 0 10px 30px rgba(0,0,0,0.02);
      transition: all 0.3s;
    }

    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    }

    .case-img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .case-info {
      padding: 20px;
    }

    .case-tag {
      color: var(--secondary);
      font-size: 0.8rem;
      font-weight: bold;
      text-transform: uppercase;
    }

    .case-title {
      font-size: 1.2rem;
      margin: 8px 0;
    }

    /* 8. 对比评测 - 突出 9.9 评分与推荐度五星 */
    .eval-container {
      background: #fff;
      border-radius: 24px;
      padding: 40px;
      box-shadow: 0 20px 50px rgba(0,0,0,0.05);
      border: 2px solid transparent;
      background-image: linear-gradient(#fff, #fff), var(--neon-gradient);
      background-origin: border-box;
      background-clip: padding-box, border-box;
    }

    .eval-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 2px solid var(--border-color);
      padding-bottom: 30px;
      margin-bottom: 30px;
      flex-wrap: wrap;
      gap: 20px;
    }

    .score-large {
      display: flex;
      align-items: center;
      gap: 15px;
    }

    .score-num {
      font-size: 4rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .stars {
      color: #fbbf24;
      font-size: 1.5rem;
    }

    .eval-table-wrapper {
      overflow-x: auto;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

    th, td {
      padding: 15px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    th {
      font-weight: 700;
      background: var(--light);
    }

    .highlight-td {
      background: rgba(79, 70, 229, 0.05);
      font-weight: bold;
      color: var(--primary);
    }

    /* 9. Token比价参考 & 智能匹配 */
    .match-box {
      background: #fff;
      border-radius: 20px;
      padding: 40px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    }

    .match-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-group-full {
      grid-column: span 2;
    }

    .match-form label {
      display: block;
      margin-bottom: 8px;
      font-weight: 600;
    }

    .match-form input, .match-form select, .match-form textarea {
      width: 100%;
      padding: 12px 15px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      background-color: var(--light);
      color: var(--dark);
      font-size: 0.95rem;
    }

    .match-form input:focus, .match-form select:focus, .match-form textarea:focus {
      outline: 2px solid var(--primary);
    }

    /* 10. 培训板块 */
    .training-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }

    .training-card {
      background: #fff;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 30px;
      transition: all 0.3s;
      position: relative;
    }

    .training-card:hover {
      border-color: var(--secondary);
      transform: translateY(-5px);
    }

    .cert-badge {
      position: absolute;
      top: 20px;
      right: 20px;
      background: #f43f5e;
      color: #fff;
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: bold;
    }

    /* 11. FAQ折叠面板 */
    .faq-container {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      margin-bottom: 15px;
      overflow: hidden;
    }

    .faq-question {
      padding: 20px;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background-color: #fff;
      transition: background-color 0.3s;
    }

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

    .faq-question::after {
      content: '+';
      font-size: 1.5rem;
      font-weight: 300;
      transition: transform 0.3s;
    }

    .faq-item.active .faq-question::after {
      content: '-';
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      background-color: var(--light);
    }

    .faq-answer-content {
      padding: 20px;
      color: var(--gray-text);
      font-size: 0.95rem;
      border-top: 1px solid var(--border-color);
    }

    .faq-item.active .faq-answer {
      max-height: 1000px;
      transition: max-height 0.5s cubic-bezier(1, 0, 1, 0);
    }

    /* 12. 客户评论卡片 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 25px;
    }

    .testimonial-card {
      background: #fff;
      padding: 30px;
      border-radius: 16px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.02);
      border-left: 4px solid var(--secondary);
    }

    .client-info {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 15px;
    }

    .client-avatar {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--neon-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: bold;
    }

    .client-meta h4 {
      font-size: 1rem;
    }

    .client-meta p {
      font-size: 0.8rem;
    }

    /* 13. 资讯列表与百科 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
    }

    .news-card {
      background: #fff;
      padding: 25px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
    }

    .news-date {
      font-size: 0.8rem;
      color: var(--secondary);
      font-weight: bold;
    }

    .news-title-link {
      font-size: 1.1rem;
      font-weight: bold;
      color: var(--dark);
      margin: 10px 0;
      display: block;
    }

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

    /* 14. 加盟代理 & 客服二维码 */
    .agent-wrapper {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .qr-box {
      background: #fff;
      padding: 30px;
      border-radius: 20px;
      text-align: center;
      border: 1px solid var(--border-color);
      box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    }

    .qr-box img {
      max-width: 200px;
      margin-bottom: 15px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
    }

    /* 页脚与友情链接 */
    footer {
      background-color: var(--dark);
      color: #94a3b8;
      padding: 60px 0 30px;
      font-size: 0.9rem;
    }

    footer a {
      color: #cbd5e1;
    }

    footer a:hover {
      color: var(--accent);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand h4 {
      color: #fff;
      margin-bottom: 15px;
      font-size: 1.2rem;
    }

    .footer-links-list {
      list-style: none;
    }

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

    .footer-bottom {
      border-top: 1px solid #334155;
      padding-top: 30px;
      text-align: center;
      font-size: 0.8rem;
    }

    .friend-links {
      margin-top: 15px;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 15px;
    }

    .friend-links a {
      background: rgba(255,255,255,0.05);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.8rem;
    }

    /* 悬浮客服面板 */
    .float-contact {
      position: fixed;
      right: 20px;
      bottom: 20px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--neon-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 10px 20px rgba(0,0,0,0.2);
      transition: all 0.3s;
      font-size: 1.2rem;
    }

    .float-btn:hover {
      transform: scale(1.1);
    }

    .float-qr-card {
      position: absolute;
      right: 65px;
      bottom: 0;
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 15px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.15);
      display: none;
      text-align: center;
      width: 180px;
    }

    .float-qr-card img {
      width: 100%;
      border-radius: 8px;
    }

    .float-qr-card p {
      font-size: 0.8rem;
      margin-top: 8px;
      font-weight: bold;
    }

    /* 移动端菜单与适配 */
    @media (max-width: 992px) {
      .menu-toggle {
        display: block;
      }

      .nav-links {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        display: none;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      }

      .nav-links.active {
        display: flex;
      }

      .about-wrapper, .solution-content, .agent-wrapper {
        grid-template-columns: 1fr;
      }

      .match-form {
        grid-template-columns: 1fr;
      }

      .form-group-full {
        grid-column: span 1;
      }

      h1 {
        font-size: 2rem;
      }
    }