/* 多彩涂鸦风格 (Neobrutalism新粗野主义进化版) */
    :root {
      --bg-color: #fbf9f5;
      --text-color: #1a1a1a;
      --primary-yellow: #ffd000;
      --primary-pink: #ff6b8b;
      --primary-blue: #3dc4ff;
      --primary-green: #2de29a;
      --border-style: 3px solid #1a1a1a;
      --shadow-style: 6px 6px 0px #1a1a1a;
      --shadow-hover: 2px 2px 0px #1a1a1a;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }

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

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

    a {
      color: var(--text-color);
      text-decoration: none;
      transition: all 0.2s ease;
    }

    /* 布局容器 */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }

    /* 头部导航 */
    header {
      background: #fff;
      border-bottom: var(--border-style);
      position: sticky;
      top: 0;
      z-index: 1000;
    }

    .nav-wrapper {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 0;
    }

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

    .ai-page-logo {
      height: 45px;
      width: auto;
    }

    nav {
      display: flex;
      align-items: center;
      gap: 15px;
    }

    .nav-menu {
      display: flex;
      list-style: none;
      gap: 15px;
    }

    .nav-menu a {
      font-weight: 700;
      font-size: 14px;
      padding: 5px 10px;
      border: 2px solid transparent;
      border-radius: 4px;
    }

    .nav-menu a:hover {
      background: var(--primary-yellow);
      border-color: #1a1a1a;
    }

    .nav-btn {
      background: var(--primary-pink);
      border: var(--border-style);
      padding: 8px 16px;
      font-weight: 700;
      border-radius: 8px;
      box-shadow: 3px 3px 0px #1a1a1a;
      cursor: pointer;
    }

    .nav-btn:hover {
      box-shadow: 1px 1px 0px #1a1a1a;
      transform: translate(2px, 2px);
    }

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

    .menu-toggle span {
      width: 25px;
      height: 3px;
      background: #1a1a1a;
      display: block;
    }

    /* 通用块样式 */
    section {
      padding: 80px 0;
      border-bottom: var(--border-style);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 900;
      margin-bottom: 40px;
      text-align: center;
      position: relative;
      display: inline-block;
      left: 50%;
      transform: translateX(-50%);
      padding: 5px 20px;
      background: #fff;
      border: var(--border-style);
      box-shadow: 4px 4px 0 #1a1a1a;
      border-radius: 12px;
      word-break: break-all;
    }

    /* 首屏 Hero - 无图片 */
    #hero {
      background: linear-gradient(135deg, #fffde6 0%, #e6f7ff 100%);
      padding: 100px 0;
      text-align: center;
    }

    #hero h1 {
      font-size: 2.8rem;
      font-weight: 950;
      line-height: 1.2;
      margin-bottom: 20px;
      background: #fff;
      display: inline-block;
      padding: 15px 30px;
      border: var(--border-style);
      box-shadow: var(--shadow-style);
      border-radius: 15px;
      transform: rotate(-1deg);
    }

    .hero-sub {
      font-size: 1.2rem;
      font-weight: 600;
      max-width: 800px;
      margin: 30px auto;
      color: #444;
    }

    .hero-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-top: 40px;
    }

    .btn-main {
      background: var(--primary-yellow);
      border: var(--border-style);
      padding: 16px 36px;
      font-size: 1.1rem;
      font-weight: 900;
      border-radius: 12px;
      box-shadow: var(--shadow-style);
      cursor: pointer;
      display: inline-block;
    }

    .btn-main:hover {
      box-shadow: var(--shadow-hover);
      transform: translate(4px, 4px);
    }

    .btn-sub {
      background: #fff;
      border: var(--border-style);
      padding: 16px 36px;
      font-size: 1.1rem;
      font-weight: 900;
      border-radius: 12px;
      box-shadow: var(--shadow-style);
      cursor: pointer;
      display: inline-block;
    }

    .btn-sub:hover {
      box-shadow: var(--shadow-hover);
      transform: translate(4px, 4px);
    }

    /* 数据指标卡片 */
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 20px;
      margin-top: 60px;
    }

    .stat-card {
      background: #fff;
      border: var(--border-style);
      padding: 20px;
      border-radius: 12px;
      box-shadow: 4px 4px 0px #1a1a1a;
    }

    .stat-val {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-pink);
    }

    .stat-lbl {
      font-size: 0.95rem;
      font-weight: 700;
      color: #666;
    }

    /* 关于与平台介绍 */
    #about {
      background: #fff;
    }

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

    .about-content {
      background: #fffdf5;
      border: var(--border-style);
      padding: 45px;
      border-radius: 16px;
      box-shadow: var(--shadow-style);
    }

    .about-content p {
      margin-bottom: 20px;
      font-size: 1.05rem;
      color: #333;
    }

    .platform-tags {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 25px;
    }

    .ptag {
      background: #fff;
      border: 2px solid #1a1a1a;
      padding: 6px 12px;
      font-weight: 700;
      border-radius: 6px;
      font-size: 0.85rem;
      box-shadow: 2px 2px 0px #1a1a1a;
    }

    /* 全平台 AIGC 服务 - 标签云 */
    #services {
      background: #fbf9f5;
    }

    .model-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      max-width: 950px;
      margin: 0 auto;
    }

    .model-badge {
      background: #fff;
      border: 2px solid #1a1a1a;
      padding: 8px 18px;
      font-weight: 700;
      font-size: 0.9rem;
      border-radius: 30px;
      box-shadow: 3px 3px 0 #1a1a1a;
      transition: all 0.2s;
    }

    .model-badge:hover {
      background: var(--primary-blue);
      transform: translateY(-2px);
      box-shadow: 1px 1px 0 #1a1a1a;
    }

    /* 一站式创作 + 核心卖点 */
    #features {
      background: #fff;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }

    .feature-card {
      background: #fff;
      border: var(--border-style);
      padding: 30px;
      border-radius: 16px;
      box-shadow: var(--shadow-style);
      position: relative;
      overflow: hidden;
      transition: transform 0.2s;
    }

    .feature-card:hover {
      transform: translateY(-5px);
    }

    .feature-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 10px;
      background: var(--primary-yellow);
    }

    .feature-card:nth-child(2n)::before {
      background: var(--primary-pink);
    }

    .feature-card:nth-child(3n)::before {
      background: var(--primary-blue);
    }

    .feature-icon {
      font-size: 2rem;
      margin-bottom: 15px;
    }

    .feature-card h3 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .feature-card p {
      font-size: 0.95rem;
      color: #555;
    }

    /* 解决方案与服务网络 */
    #solutions {
      background: #fffaf0;
    }

    .solutions-layout {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
    }

    .sol-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .sol-item {
      background: #fff;
      border: var(--border-style);
      padding: 25px;
      border-radius: 12px;
      box-shadow: 4px 4px 0 #1a1a1a;
    }

    .sol-item h4 {
      font-size: 1.1rem;
      margin-bottom: 10px;
      font-weight: 800;
    }

    .sol-item p {
      font-size: 0.9rem;
      color: #666;
    }

    .network-map {
      background: #fff;
      border: var(--border-style);
      padding: 30px;
      border-radius: 16px;
      box-shadow: var(--shadow-style);
    }

    .network-map h3 {
      font-weight: 900;
      margin-bottom: 15px;
    }

    .city-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 20px;
    }

    .city-tag {
      background: #eee;
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: 700;
    }

    /* 标准化流程与技术标准 */
    #process {
      background: #fff;
    }

    .timeline {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      position: relative;
    }

    .timeline-step {
      background: #fbf9f5;
      border: var(--border-style);
      padding: 25px;
      border-radius: 12px;
      box-shadow: 4px 4px 0 #1a1a1a;
      position: relative;
    }

    .step-num {
      position: absolute;
      top: -15px;
      left: 15px;
      background: var(--primary-pink);
      color: #fff;
      font-weight: 900;
      width: 35px;
      height: 35px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: var(--border-style);
      border-radius: 50%;
      box-shadow: 2px 2px 0 #1a1a1a;
    }

    .timeline-step h4 {
      margin-top: 15px;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .timeline-step p {
      font-size: 0.88rem;
      color: #666;
    }

    /* 技术标准区 */
    .tech-standards {
      margin-top: 50px;
      background: #e6f7ff;
      border: var(--border-style);
      padding: 30px;
      border-radius: 16px;
      box-shadow: var(--shadow-style);
    }

    .tech-standards h3 {
      font-weight: 900;
      margin-bottom: 15px;
    }

    /* 客户案例中心 */
    #cases {
      background: #fbf9f5;
    }

    .cases-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }

    .case-card {
      background: #fff;
      border: var(--border-style);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-style);
    }

    .case-img-container {
      border-bottom: var(--border-style);
      background: #eee;
      max-height: 280px;
      overflow: hidden;
    }

    .ai-page-image {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    .case-body {
      padding: 25px;
    }

    .case-body h4 {
      font-size: 1.25rem;
      font-weight: 850;
      margin-bottom: 10px;
    }

    .case-body p {
      font-size: 0.95rem;
      color: #555;
    }

    /* 对比评测 + Token 比价 */
    #comparison {
      background: #fff;
    }

    .comparison-meta {
      display: flex;
      justify-content: center;
      gap: 30px;
      margin-bottom: 30px;
      flex-wrap: wrap;
    }

    .meta-box {
      background: var(--primary-yellow);
      border: var(--border-style);
      padding: 15px 30px;
      border-radius: 12px;
      box-shadow: 4px 4px 0 #1a1a1a;
      text-align: center;
    }

    .meta-box span {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
    }

    .meta-box strong {
      font-size: 1.8rem;
      font-weight: 900;
    }

    .table-responsive {
      overflow-x: auto;
      margin-bottom: 40px;
      border: var(--border-style);
      border-radius: 16px;
      box-shadow: var(--shadow-style);
    }

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

    th, td {
      padding: 16px 20px;
      border-bottom: 2px solid #1a1a1a;
      font-weight: 700;
    }

    th {
      background: #f1f1f1;
      color: #1a1a1a;
      font-weight: 900;
    }

    tr:last-child td {
      border-bottom: none;
    }

    .checked {
      color: green;
      font-weight: 900;
    }

    .unchecked {
      color: red;
      font-weight: 900;
    }

    /* 人工智能与职业培训 */
    #training {
      background: #fffdf5;
    }

    .training-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
    }

    .train-card {
      background: #fff;
      border: var(--border-style);
      padding: 25px;
      border-radius: 12px;
      box-shadow: 4px 4px 0 #1a1a1a;
      text-align: center;
      transition: all 0.2s;
    }

    .train-card:hover {
      background: var(--primary-green);
      transform: translateY(-4px);
    }

    .train-card h4 {
      font-weight: 900;
      font-size: 1.1rem;
      margin-bottom: 12px;
    }

    .train-card p {
      font-size: 0.88rem;
      color: #555;
    }

    /* 智能需求匹配与加盟代理 (表单) */
    #matching-agent {
      background: #fff;
    }

    .form-agent-layout {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
    }

    .form-wrapper {
      background: #fffdf0;
      border: var(--border-style);
      padding: 40px;
      border-radius: 20px;
      box-shadow: var(--shadow-style);
    }

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

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

    .form-group input, .form-group select, .form-group textarea {
      width: 100%;
      padding: 12px;
      border: 2px solid #1a1a1a;
      border-radius: 8px;
      font-family: inherit;
      font-size: 0.95rem;
      font-weight: 700;
      background: #fff;
    }

    .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
      outline: none;
      background: #fffde6;
    }

    .btn-submit {
      background: var(--primary-pink);
      border: var(--border-style);
      width: 100%;
      padding: 15px;
      font-size: 1.1rem;
      font-weight: 900;
      border-radius: 10px;
      box-shadow: 4px 4px 0 #1a1a1a;
      cursor: pointer;
      margin-top: 10px;
    }

    .btn-submit:hover {
      box-shadow: 2px 2px 0 #1a1a1a;
      transform: translate(2px, 2px);
    }

    .agent-wrapper {
      background: #e6f7ff;
      border: var(--border-style);
      padding: 40px;
      border-radius: 20px;
      box-shadow: var(--shadow-style);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .agent-wrapper h3 {
      font-size: 1.5rem;
      font-weight: 900;
      margin-bottom: 15px;
    }

    .agent-benefits {
      list-style: none;
      margin: 20px 0;
    }

    .agent-benefits li {
      margin-bottom: 12px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .agent-benefits li::before {
      content: '✔';
      color: var(--primary-pink);
      font-weight: 900;
    }

    /* 用户评论 */
    #reviews {
      background: #fbf9f5;
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
    }

    .review-card {
      background: #fff;
      border: var(--border-style);
      padding: 30px;
      border-radius: 16px;
      box-shadow: var(--shadow-style);
    }

    .rev-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 15px;
    }

    .rev-avatar {
      width: 45px;
      height: 45px;
      border-radius: 50%;
      background: #ffd000;
      border: 2px solid #1a1a1a;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.2rem;
    }

    .rev-info h5 {
      font-weight: 850;
      font-size: 1rem;
    }

    .rev-info span {
      font-size: 0.8rem;
      color: #666;
      font-weight: 700;
    }

    .rev-content {
      font-size: 0.95rem;
      color: #333;
      font-style: italic;
    }

    /* 行业资讯 / 知识库 */
    #articles {
      background: #fff;
    }

    .articles-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }

    .article-card {
      background: #fffdf5;
      border: var(--border-style);
      padding: 25px;
      border-radius: 12px;
      box-shadow: 4px 4px 0 #1a1a1a;
    }

    .article-card h4 {
      font-weight: 850;
      font-size: 1.1rem;
      margin-bottom: 12px;
    }

    .article-card p {
      font-size: 0.88rem;
      color: #666;
      margin-bottom: 15px;
    }

    .article-card .btn-link {
      font-weight: 900;
      text-decoration: underline;
      color: var(--primary-pink);
    }

    /* 常见用户问题 FAQ + 术语百科 + 自助排查 */
    #faq-section {
      background: #fbf9f5;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
    }

    .accordion {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    .acc-item {
      background: #fff;
      border: var(--border-style);
      border-radius: 8px;
      box-shadow: 3px 3px 0 #1a1a1a;
      overflow: hidden;
    }

    .acc-header {
      padding: 15px 20px;
      background: #fff;
      cursor: pointer;
      font-weight: 800;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .acc-header::after {
      content: '+';
      font-size: 1.2rem;
      font-weight: 900;
    }

    .acc-item.active .acc-header::after {
      content: '-';
    }

    .acc-body {
      padding: 0 20px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.2s ease-out, padding 0.2s ease-out;
      background: #fafafa;
      border-top: 0px solid #1a1a1a;
      font-size: 0.9rem;
      color: #444;
    }

    .acc-item.active .acc-body {
      padding: 15px 20px;
      border-top: 2px solid #1a1a1a;
    }

    .faq-sidebar {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }

    .sidebar-block {
      background: #fff;
      border: var(--border-style);
      padding: 25px;
      border-radius: 12px;
      box-shadow: 4px 4px 0 #1a1a1a;
    }

    .sidebar-block h4 {
      font-weight: 900;
      margin-bottom: 15px;
      font-size: 1.15rem;
    }

    .wiki-list, .trouble-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .wiki-list li, .trouble-list li {
      font-size: 0.88rem;
      font-weight: 700;
    }

    .wiki-list strong {
      color: var(--primary-pink);
    }

    /* 联系我们 */
    #contact {
      background: #fffdf5;
    }

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

    .contact-info {
      background: #fff;
      border: var(--border-style);
      padding: 40px;
      border-radius: 16px;
      box-shadow: var(--shadow-style);
    }

    .info-list {
      list-style: none;
      margin: 30px 0;
    }

    .info-list li {
      margin-bottom: 15px;
      font-weight: 700;
      font-size: 1.05rem;
    }

    .contact-qr {
      background: #fff;
      border: var(--border-style);
      padding: 30px;
      border-radius: 16px;
      box-shadow: var(--shadow-style);
      text-align: center;
    }

    .qr-container {
      display: inline-block;
      border: 3px solid #1a1a1a;
      padding: 10px;
      border-radius: 8px;
      background: #fff;
      margin-bottom: 15px;
    }

    .qr-container img {
      max-width: 150px;
      height: auto;
      display: block;
    }

    .social-handles {
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-top: 15px;
      font-weight: 700;
    }

    /* 页脚 */
    footer {
      background: #1a1a1a;
      color: #fff;
      padding: 50px 0 30px 0;
      border-top: var(--border-style);
    }

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

    .footer-brand h4 {
      font-size: 1.5rem;
      font-weight: 900;
      color: var(--primary-yellow);
      margin-bottom: 15px;
    }

    .footer-brand p {
      font-size: 0.85rem;
      color: #aaa;
    }

    .footer-links h5 {
      font-size: 1.1rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 15px;
    }

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

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

    .footer-links a {
      color: #ccc;
      font-size: 0.88rem;
    }

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

    .footer-friendships h5 {
      font-size: 1.1rem;
      margin-bottom: 15px;
      color: #fff;
    }

    .friendship-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .friendship-links a {
      color: #aaa;
      font-size: 0.85rem;
      background: #333;
      padding: 4px 8px;
      border-radius: 4px;
    }

    .friendship-links a:hover {
      background: var(--primary-pink);
      color: #fff;
    }

    .footer-bottom {
      border-top: 1px solid #333;
      padding-top: 20px;
      text-align: center;
      font-size: 0.8rem;
      color: #777;
    }

    .ai-page-home-link {
      font-weight: 900;
      color: var(--primary-yellow);
    }

    /* 浮动客服入口 */
    .float-kefu {
      position: fixed;
      right: 25px;
      bottom: 25px;
      z-index: 999;
      background: var(--primary-yellow);
      border: var(--border-style);
      padding: 12px 18px;
      border-radius: 30px;
      box-shadow: 4px 4px 0 #1a1a1a;
      font-weight: 900;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .float-kefu:hover {
      box-shadow: 2px 2px 0 #1a1a1a;
      transform: translate(2px, 2px);
    }

    /* 弹出客服框 */
    .kefu-modal {
      display: none;
      position: fixed;
      right: 25px;
      bottom: 85px;
      z-index: 1000;
      background: #fff;
      border: var(--border-style);
      width: 250px;
      padding: 20px;
      border-radius: 16px;
      box-shadow: var(--shadow-style);
      text-align: center;
    }

    .kefu-modal img {
      width: 100%;
      height: auto;
      border: 2px solid #1a1a1a;
      border-radius: 8px;
      margin: 10px 0;
    }

    .kefu-modal-close {
      position: absolute;
      top: 5px;
      right: 10px;
      font-size: 1.2rem;
      cursor: pointer;
      font-weight: 900;
    }

    /* 移动端适配 */
    @media (max-width: 992px) {
      .about-grid, .solutions-layout, .form-agent-layout, .faq-layout, .contact-layout {
        grid-template-columns: 1fr;
      }
      .cases-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        background: #fff;
        border-bottom: var(--border-style);
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
      }
      .nav-menu.active {
        display: flex;
      }
      nav {
        gap: 10px;
      }
      #hero h1 {
        font-size: 2rem;
        padding: 10px 15px;
      }
      .section-title {
        font-size: 1.8rem;
      }
    }