/* 撞色艳色风 - 核心视觉基础定义 */
    :root {
      --primary: #4f46e5;
      --primary-dark: #3730a3;
      --accent-vibrant: #ff0055;
      --accent-cyan: #00f2fe;
      --accent-yellow: #ffb800;
      --bg-main: #f4f6fb;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --container-max: 1200px;
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 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-main);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      width: 100%;
      overflow-x: hidden;
      background-color: var(--bg-main);
    }

    /* 容器规范 */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

    section {
      padding: 70px 0;
      position: relative;
    }

    h1, h2, h3, h4 {
      color: var(--text-main);
      font-weight: 800;
      line-height: 1.25;
    }

    .section-title {
      font-size: 2.2rem;
      text-align: center;
      margin-bottom: 15px;
      position: relative;
      letter-spacing: -0.5px;
    }

    .section-title span {
      background: linear-gradient(135deg, var(--primary), var(--accent-vibrant));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-subtitle {
      text-align: center;
      color: var(--text-muted);
      max-width: 700px;
      margin: 0 auto 45px auto;
      font-size: 1.05rem;
    }

    /* 通用按钮 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 1rem;
      font-weight: 700;
      border-radius: 50px;
      text-decoration: none;
      transition: var(--transition);
      cursor: pointer;
      border: none;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent-vibrant), var(--primary));
      color: #ffffff !important;
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(255, 0, 85, 0.4);
    }

    .btn-vibrant {
      background: #ffb800;
      color: #0f172a !important;
      border: 2px solid #0f172a;
      box-shadow: 4px 4px 0 #0f172a;
    }

    .btn-vibrant:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0 #0f172a;
    }

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

    .btn-outline:hover {
      background: var(--primary);
      color: #ffffff !important;
    }

    /* 顶部导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 3px solid var(--text-main);
      box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 75px;
    }

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

    .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* 严格按照要求 */
      list-style: none;
    }

    .nav-links li a {
      text-decoration: none;
      color: var(--text-main);
      font-weight: 700;
      font-size: 0.95rem;
      padding: 8px 14px;
      border-radius: 6px;
      transition: var(--transition);
      display: inline-block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--accent-vibrant);
      background: rgba(255, 0, 85, 0.08);
    }

    .ai-page-home-link {
      color: var(--primary) !important;
      font-weight: 800 !important;
    }

    .mobile-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: none;
      border: none;
      padding: 5px;
    }

    .mobile-toggle span {
      width: 25px;
      height: 3px;
      background: var(--text-main);
      border-radius: 2px;
    }

    /* 1. Hero 首屏 (无图片) */
    .hero-section {
      background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #31103f 100%);
      color: #ffffff;
      padding: 90px 0 100px 0;
      position: relative;
      overflow: hidden;
      border-bottom: 5px solid var(--accent-vibrant);
    }

    .hero-bg-shapes {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      overflow: hidden;
    }

    .hero-shape {
      position: absolute;
      border-radius: 50%;
      filter: blur(80px);
      opacity: 0.4;
    }

    .hero-shape-1 {
      width: 350px;
      height: 350px;
      background: var(--accent-vibrant);
      top: -50px;
      left: -50px;
    }

    .hero-shape-2 {
      width: 400px;
      height: 400px;
      background: var(--accent-cyan);
      bottom: -100px;
      right: -50px;
    }

    .hero-content {
      max-width: 850px;
      margin: 0 auto;
      text-align: center;
      position: relative;
      z-index: 2;
    }

    .hero-badge {
      display: inline-block;
      padding: 6px 18px;
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--accent-cyan);
      margin-bottom: 25px;
      letter-spacing: 1px;
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 25px;
      color: #ffffff;
      text-shadow: 0 4px 20px rgba(0,0,0,0.5);
    }

    .hero-title span {
      background: linear-gradient(90deg, #00f2fe, #ff0055, #ffb800);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.25rem;
      color: #cbd5e1;
      margin-bottom: 40px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    /* 2. 数据指标卡片 (关于我们) */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .stat-card {
      background: var(--bg-card);
      border: 3px solid var(--text-main);
      box-shadow: 6px 6px 0 var(--text-main);
      padding: 25px 20px;
      border-radius: var(--radius);
      text-align: center;
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: 10px 10px 0 var(--text-main);
    }

    .stat-num {
      font-size: 2.5rem;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 5px;
    }

    .stat-label {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* 3. AIGC 服务能力卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .service-card {
      background: var(--bg-card);
      border: 2px solid var(--border-color);
      border-radius: var(--radius);
      padding: 30px 25px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 5px;
      background: linear-gradient(90deg, var(--primary), var(--accent-vibrant));
    }

    .service-card:hover {
      transform: translateY(-5px);
      border-color: var(--text-main);
      box-shadow: 0 15px 30px rgba(0,0,0,0.08);
    }

    .service-icon {
      width: 55px;
      height: 55px;
      border-radius: 12px;
      background: rgba(79, 70, 229, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: bold;
      margin-bottom: 20px;
    }

    .service-title {
      font-size: 1.3rem;
      margin-bottom: 12px;
    }

    .service-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 4. 一站式制作场景 (撞色卡片矩阵) */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .scenario-item {
      background: #ffffff;
      border: 2px solid var(--text-main);
      box-shadow: 4px 4px 0 var(--text-main);
      padding: 20px 15px;
      border-radius: 10px;
      transition: var(--transition);
    }

    .scenario-item:hover {
      background: #fffbeb;
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0 var(--text-main);
    }

    .scenario-tag {
      font-size: 0.75rem;
      font-weight: 800;
      text-transform: uppercase;
      padding: 3px 8px;
      border-radius: 4px;
      background: var(--accent-vibrant);
      color: #fff;
      display: inline-block;
      margin-bottom: 10px;
    }

    .scenario-name {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .scenario-detail {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 5. 行业方案与支持平台模型 */
    .models-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-chip {
      background: #ffffff;
      border: 2px solid var(--text-main);
      padding: 8px 18px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 0.9rem;
      box-shadow: 3px 3px 0 var(--text-main);
      transition: var(--transition);
    }

    .model-chip:hover {
      background: var(--accent-cyan);
      transform: scale(1.05);
    }

    /* 6. 服务网络与地图列表 */
    .network-box {
      background: #ffffff;
      border: 3px solid var(--text-main);
      box-shadow: 8px 8px 0 var(--text-main);
      border-radius: var(--radius);
      padding: 40px;
    }

    .network-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .network-item h4 {
      font-size: 1.2rem;
      color: var(--primary);
      margin-bottom: 10px;
      border-left: 4px solid var(--accent-vibrant);
      padding-left: 10px;
    }

    /* 7. 标准流程 (步骤条) */
    .workflow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: var(--bg-card);
      border: 2px solid var(--border-color);
      border-radius: var(--radius);
      padding: 30px 20px;
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 45px;
      height: 45px;
      background: var(--text-main);
      color: var(--accent-yellow);
      font-weight: 900;
      font-size: 1.3rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px auto;
    }

    /* 8. 案例中心 */
    .cases-showcase {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .case-card {
      background: #ffffff;
      border: 3px solid var(--text-main);
      box-shadow: 6px 6px 0 var(--text-main);
      border-radius: var(--radius);
      overflow: hidden;
    }

    .case-img-box {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #e2e8f0;
    }

    .ai-page-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: var(--transition);
    }

    .case-card:hover .ai-page-image {
      transform: scale(1.05);
    }

    .case-info {
      padding: 20px;
    }

    .case-title {
      font-size: 1.15rem;
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 9. 对比评测 (五星评测) */
    .rating-box {
      background: linear-gradient(135deg, #1e1b4b, #0f172a);
      color: #ffffff;
      border: 3px solid var(--text-main);
      box-shadow: 8px 8px 0 var(--accent-vibrant);
      border-radius: var(--radius);
      padding: 40px;
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

    .rating-score-badge {
      text-align: center;
    }

    .rating-stars {
      color: #ffb800;
      font-size: 2rem;
      letter-spacing: 4px;
    }

    .rating-number {
      font-size: 3.5rem;
      font-weight: 900;
      color: #00f2fe;
      line-height: 1;
      margin: 10px 0 5px 0;
    }

    .rating-max {
      font-size: 1rem;
      color: #94a3b8;
    }

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

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      background: #ffffff;
      border: 3px solid var(--text-main);
      box-shadow: 6px 6px 0 var(--text-main);
      border-radius: var(--radius);
      overflow: hidden;
    }

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

    .compare-table th {
      background: var(--text-main);
      color: #ffffff;
      font-size: 1rem;
    }

    .compare-table tr:nth-child(even) {
      background: #f8fafc;
    }

    .compare-table td.highlight {
      font-weight: 800;
      color: var(--accent-vibrant);
      background: rgba(255, 0, 85, 0.04);
    }

    /* 10. 需求匹配 */
    .match-card {
      background: #ffffff;
      border: 3px solid var(--text-main);
      box-shadow: 6px 6px 0 var(--text-main);
      border-radius: var(--radius);
      padding: 30px;
    }

    /* 11. Token 比价 */
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .price-card {
      background: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: var(--radius);
      padding: 30px 25px;
      box-shadow: 6px 6px 0 var(--text-main);
      position: relative;
    }

    .price-card.featured {
      border-color: var(--accent-vibrant);
      box-shadow: 8px 8px 0 var(--accent-vibrant);
      background: #fff5f7;
    }

    .price-card-tag {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--accent-vibrant);
      color: #fff;
      font-size: 0.8rem;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: 20px;
    }

    .price-val {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      margin: 15px 0;
    }

    /* 12. 帮助中心 & 13. FAQ 折叠面板 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 2px solid var(--text-main);
      box-shadow: 4px 4px 0 var(--text-main);
      border-radius: 10px;
      margin-bottom: 16px;
      overflow: hidden;
    }

    .faq-question {
      padding: 20px 25px;
      font-size: 1.1rem;
      font-weight: 800;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
      background: #ffffff;
    }

    .faq-question::after {
      content: '+';
      font-size: 1.5rem;
      color: var(--primary);
      transition: var(--transition);
    }

    .faq-item.active .faq-question::after {
      transform: rotate(45deg);
      color: var(--accent-vibrant);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #f8fafc;
      border-top: 1px dashed var(--border-color);
    }

    .faq-answer p {
      padding: 20px 25px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 14. AI百科 */
    .wiki-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .wiki-card {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius);
      padding: 25px;
    }

    /* 15. 行业资讯与最新文章 */
    .articles-box {
      background: #ffffff;
      border: 3px solid var(--text-main);
      box-shadow: 6px 6px 0 var(--text-main);
      border-radius: var(--radius);
      padding: 35px;
    }

    .articles-list {
      list-style: none;
      margin-top: 20px;
    }

    .articles-list li {
      padding: 12px 0;
      border-bottom: 1px dashed var(--border-color);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .articles-list li a {
      color: var(--text-main);
      font-weight: 700;
      text-decoration: none;
    }

    .articles-list li a:hover {
      color: var(--primary);
    }

    /* 用户评论卡片 (6条评论) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .review-card {
      background: #ffffff;
      border: 3px solid var(--text-main);
      box-shadow: 6px 6px 0 var(--text-main);
      border-radius: var(--radius);
      padding: 25px;
      position: relative;
    }

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

    .avatar-placeholder {
      width: 45px;
      height: 45px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
      color: #fff;
      font-weight: 900;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }

    .user-info h5 {
      font-size: 1rem;
    }

    .user-info span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 16. 联系我们 & 加盟代理 & 表单 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }

    .contact-info-card {
      background: linear-gradient(135deg, #0f172a, #1e1b4b);
      color: #ffffff;
      border: 3px solid var(--text-main);
      box-shadow: 8px 8px 0 var(--text-main);
      border-radius: var(--radius);
      padding: 40px;
    }

    .contact-info-item {
      margin-bottom: 25px;
    }

    .contact-info-item h4 {
      color: var(--accent-cyan);
      margin-bottom: 6px;
    }

    .form-card {
      background: #ffffff;
      border: 3px solid var(--text-main);
      box-shadow: 8px 8px 0 var(--text-main);
      border-radius: var(--radius);
      padding: 40px;
    }

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

    .form-group label {
      display: block;
      font-weight: 800;
      margin-bottom: 8px;
      font-size: 0.95rem;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 2px solid var(--text-main);
      border-radius: 8px;
      font-size: 1rem;
      outline: none;
      transition: var(--transition);
      background: #fff;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
    }

    textarea.form-control {
      min-height: 110px;
      resize: vertical;
    }

    /* 页脚与友情链接 */
    .footer-section {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      border-top: 5px solid var(--accent-vibrant);
    }

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

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.1rem;
      margin-bottom: 20px;
    }

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

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

    .footer-links li a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-links li a:hover {
      color: var(--accent-cyan);
    }

    .friend-links-box {
      border-top: 1px solid #334155;
      padding-top: 25px;
      margin-top: 25px;
    }

    .friend-links-box h5 {
      color: #ffffff;
      margin-bottom: 12px;
    }

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
    }

    .friend-links a {
      color: #cbd5e1;
      text-decoration: none;
      font-size: 0.9rem;
    }

    .friend-links a:hover {
      color: var(--accent-vibrant);
    }

    .copyright {
      text-align: center;
      border-top: 1px solid #1e293b;
      padding-top: 25px;
      margin-top: 40px;
      font-size: 0.88rem;
    }

    /* 浮动客服入口 */
    .float-cs {
      position: fixed;
      bottom: 30px;
      right: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-cs-btn {
      width: 55px;
      height: 55px;
      border-radius: 50%;
      background: var(--accent-vibrant);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      text-decoration: none;
      box-shadow: 0 4px 15px rgba(255, 0, 85, 0.4);
      border: 2px solid #ffffff;
      cursor: pointer;
      transition: var(--transition);
    }

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

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .services-grid, .scenarios-grid, .stats-grid, .cases-showcase, .reviews-grid, .price-grid, .network-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 2rem;
      }
      .services-grid, .scenarios-grid, .stats-grid, .cases-showcase, .reviews-grid, .price-grid, .network-grid, .workflow-steps, .wiki-grid {
        grid-template-columns: 1fr;
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .mobile-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 75px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 3px solid var(--text-main);
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
      }
      .nav-links.show {
        display: flex;
      }
    }