/* 多彩涂鸦风格 Neo-Brutalism 核心样式声明 */
    :root {
      --primary: #ffe600; /* 亮柠檬黄 */
      --secondary: #ff5e97; /* 糖果亮粉 */
      --accent: #3b82f6; /* 霓虹蓝 */
      --success: #00f09b; /* 极客翠绿 */
      --dark: #0e121a; /* 涂鸦主轮廓黑 */
      --light: #fefcf6; /* 暖白粉底色 */
      --border-width: 3px;
      --brutal-shadow: 6px 6px 0px #0e121a;
      --brutal-shadow-sm: 3px 3px 0px #0e121a;
      --brutal-shadow-lg: 10px 10px 0px #0e121a;
    }

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

    body {
      background-color: var(--light);
      color: var(--dark);
      font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      padding-top: 80px; /* 导航避让 */
    }

    /* 涂鸦风格背景纹理 */
    .graffiti-bg {
      background-image: 
        radial-gradient(var(--dark) 10%, transparent 10%),
        radial-gradient(var(--dark) 10%, transparent 10%);
      background-size: 24px 24px;
      background-position: 0 0, 12px 12px;
      background-color: var(--light);
      opacity: 0.05;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -2;
      pointer-events: none;
    }

    /* 全局容器居中控制 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 标题统一样式 */
    h1, h2, h3, h4, h5, h6 {
      font-weight: 900;
      line-height: 1.2;
      color: var(--dark);
    }

    .section-title {
      font-size: 2.2rem;
      margin-bottom: 30px;
      display: inline-block;
      padding: 10px 20px;
      background: var(--secondary);
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow);
      transform: rotate(-1deg);
      border-radius: 4px;
    }

    /* 涂鸦卡片组件 */
    .brutal-card {
      background: #ffffff;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow);
      border-radius: 12px;
      padding: 24px;
      transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
      position: relative;
      overflow: hidden;
    }
    .brutal-card:hover {
      transform: translate(-3px, -3px);
      box-shadow: var(--brutal-shadow-lg);
    }

    /* 涂鸦按钮组件 */
    .brutal-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 24px;
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--dark);
      background: var(--primary);
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow-sm);
      border-radius: 8px;
      text-decoration: none;
      cursor: pointer;
      transition: all 0.1s ease;
    }
    .brutal-btn:hover {
      transform: translate(2px, 2px);
      box-shadow: none;
    }
    .brutal-btn.btn-secondary {
      background: var(--secondary);
      color: #fff;
    }
    .brutal-btn.btn-accent {
      background: var(--accent);
      color: #fff;
    }

    /* 顶部导航 */
    header {
      background: #ffffff;
      border-bottom: var(--border-width) solid var(--dark);
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 80px;
      z-index: 1000;
      display: flex;
      align-items: center;
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .logo-box {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .logo-box img {
      max-height: 48px;
    }
    .logo-text {
      font-size: 1.5rem;
      font-weight: 900;
      color: var(--dark);
      letter-spacing: -1px;
    }
    .nav-menu {
      display: flex;
      list-style: none;
    }
    .nav-menu a {
      color: var(--dark);
      text-decoration: none;
      font-weight: 700;
      font-size: 0.95rem;
      padding: 6px 12px;
      border-radius: 4px;
      transition: all 0.2s ease;
    }
    .nav-menu a:hover {
      background: var(--primary);
      outline: 2px solid var(--dark);
    }
    
    /* 汉堡按钮仅在移动端显示 */
    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      border: 2px solid var(--dark);
      padding: 6px;
      background: var(--primary);
      border-radius: 4px;
    }
    .menu-toggle span {
      display: block;
      width: 25px;
      height: 3px;
      background: var(--dark);
    }

    /* Hero 首屏 - 涂鸦风格，绝对不包含任何图片 */
    #home {
      padding: 100px 0 80px 0;
      background: linear-gradient(135deg, #ffe600 0%, #ff5e97 100%);
      border-bottom: var(--border-width) solid var(--dark);
      position: relative;
    }
    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
      z-index: 2;
      position: relative;
    }
    .hero-tag {
      display: inline-block;
      background: var(--dark);
      color: #fff;
      padding: 8px 16px;
      font-weight: 800;
      border-radius: 30px;
      font-size: 0.95rem;
      margin-bottom: 25px;
      text-transform: uppercase;
      letter-spacing: 1px;
      box-shadow: 3px 3px 0 var(--accent);
    }
    .hero-title-h1 {
      font-size: 3.5rem;
      font-weight: 950;
      color: var(--dark);
      line-height: 1.1;
      margin-bottom: 25px;
      text-shadow: 3px 3px 0px #fff;
    }
    .hero-subtitle {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 40px;
      background: rgba(255,255,255,0.9);
      padding: 15px;
      border: var(--border-width) solid var(--dark);
      box-shadow: 4px 4px 0px var(--dark);
      display: inline-block;
      transform: rotate(0.5deg);
    }
    .hero-btns {
      display: flex;
      gap: 20px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .hero-btns .brutal-btn {
      padding: 18px 40px;
      font-size: 1.3rem;
    }

    /* 数据指标卡片 */
    .metrics-section {
      margin-top: -40px;
      position: relative;
      z-index: 10;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
    }
    .metric-card {
      background: #fff;
      text-align: center;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow);
      padding: 30px;
      border-radius: 12px;
    }
    .metric-card .num {
      font-size: 3rem;
      font-weight: 900;
      color: var(--secondary);
      margin-bottom: 5px;
      display: block;
    }
    .metric-card .label {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--dark);
    }

    /* 通用区块设置 */
    section {
      padding: 80px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      margin-bottom: 60px;
    }

    /* 关于我们 */
    #about {
      background: #fff;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .about-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .about-text h3 {
      font-size: 1.8rem;
      margin-bottom: 20px;
      color: var(--accent);
    }
    .about-text p {
      font-size: 1.1rem;
      margin-bottom: 20px;
      color: #333;
    }
    .about-highlight-box {
      background: var(--primary);
      padding: 25px;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow);
      border-radius: 8px;
    }

    /* AIGC服务 & 一站式制作 */
    #services, #onestop {
      background: #f0f7ff;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .grid-cards {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
    }
    .service-icon {
      font-size: 3rem;
      margin-bottom: 15px;
    }
    .card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 5px;
      margin-top: 15px;
    }
    .card-tag {
      background: var(--light);
      border: 1px solid var(--dark);
      font-size: 0.8rem;
      padding: 2px 8px;
      font-weight: 700;
      border-radius: 4px;
    }

    /* 行业解决方案 */
    #solutions {
      background: #fff;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .solution-tabs {
      display: flex;
      justify-content: center;
      gap: 15px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .solution-tab-btn {
      padding: 10px 20px;
      background: #fff;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow-sm);
      font-weight: 800;
      cursor: pointer;
      border-radius: 6px;
    }
    .solution-tab-btn.active {
      background: var(--accent);
      color: #fff;
    }
    .solution-content-box {
      background: #fff;
      padding: 30px;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow);
      border-radius: 12px;
    }

    /* 流程步骤 */
    #process {
      background: #fff9e6;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .steps-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 25px;
      position: relative;
    }
    .step-card {
      background: #fff;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow);
      border-radius: 10px;
      padding: 25px;
      position: relative;
    }
    .step-num {
      position: absolute;
      top: -15px;
      right: 15px;
      background: var(--secondary);
      color: #fff;
      border: 2px solid var(--dark);
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      border-radius: 50%;
      font-size: 1.2rem;
    }

    /* 客户案例中心 & 宣传图片展示 */
    #cases {
      background: #fff;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .cases-gallery {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 30px;
    }
    .case-card img {
      width: 100%;
      border-radius: 8px;
      border: var(--border-width) solid var(--dark);
      margin-bottom: 15px;
    }

    /* 对比评测 - 高分表单样式 */
    #compare {
      background: #fdf5f7;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .score-badge-container {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 20px;
      margin-bottom: 40px;
    }
    .score-badge {
      background: var(--secondary);
      color: #fff;
      padding: 15px 30px;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow);
      border-radius: 8px;
      text-align: center;
    }
    .score-num {
      font-size: 3rem;
      font-weight: 950;
      display: block;
    }
    .table-container {
      width: 100%;
      overflow-x: auto;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow);
      border-radius: 12px;
      background: #fff;
    }
    table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }
    th, td {
      padding: 15px 20px;
      border-bottom: 2px solid var(--dark);
    }
    th {
      background: var(--primary);
      color: var(--dark);
      font-weight: 900;
    }
    tr:last-child td {
      border-bottom: none;
    }

    /* 智能需求匹配 */
    #matching {
      background: #fff;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .matching-form-box {
      max-width: 700px;
      margin: 0 auto;
    }

    /* Token比价 */
    #token {
      background: #f0fff4;
      border-bottom: var(--border-width) solid var(--dark);
    }

    /* 培训板块 */
    #professional-training, #ai-training {
      background: #fff;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .training-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }

    /* 常见问题 FAQ - 12个问答展开收起 */
    #faq {
      background: #fffdf5;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .faq-list {
      max-width: 850px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 15px;
    }
    .faq-item {
      border: var(--border-width) solid var(--dark);
      border-radius: 8px;
      background: #fff;
      box-shadow: var(--brutal-shadow-sm);
    }
    .faq-question {
      padding: 20px;
      font-weight: 800;
      font-size: 1.1rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-answer {
      padding: 0 20px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fcfcfc;
      border-top: 0 solid var(--dark);
      color: #555;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 20px;
      border-top: var(--border-width) solid var(--dark);
    }
    .faq-item.active {
      box-shadow: var(--brutal-shadow);
    }
    .faq-icon::after {
      content: '+';
      font-size: 1.5rem;
      font-weight: bold;
    }
    .faq-item.active .faq-icon::after {
      content: '−';
    }

    /* AI术语百科 & 标签云 */
    #glossary {
      background: #fff;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
    }
    .tag-item {
      background: #fff;
      border: 2px solid var(--dark);
      box-shadow: var(--brutal-shadow-sm);
      padding: 8px 16px;
      font-weight: 800;
      border-radius: 20px;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .tag-item:hover {
      background: var(--secondary);
      color: #fff;
      transform: translateY(-2px);
    }

    /* 行业资讯 / 知识库 & 客户评论 */
    #articles {
      background: #f3f4f6;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .article-links-container {
      display: flex;
      flex-direction: column;
      gap: 15px;
      margin-bottom: 50px;
    }
    .article-link-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px;
      background: #fff;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow-sm);
      border-radius: 8px;
      text-decoration: none;
      color: var(--dark);
      font-weight: 700;
      transition: transform 0.2s;
    }
    .article-link-item:hover {
      transform: scale(1.01);
      background: var(--primary);
    }
    
    .comments-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }
    .comment-card {
      background: #fff;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow);
      padding: 25px;
      border-radius: 8px;
    }
    .comment-user {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 15px;
    }
    .user-avatar {
      width: 40px;
      height: 40px;
      background: var(--primary);
      border: 2px solid var(--dark);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
    }

    /* 联系我们 & 加盟代理 */
    #contact, #agent {
      background: #fff;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .contact-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
    }
    .contact-info {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .qr-container {
      display: flex;
      gap: 30px;
      align-items: center;
      margin-top: 20px;
    }
    .qr-box {
      text-align: center;
    }
    .qr-box img {
      width: 130px;
      height: 130px;
      border: var(--border-width) solid var(--dark);
      border-radius: 8px;
      box-shadow: var(--brutal-shadow-sm);
    }

    /* 表单控件 */
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .form-control {
      width: 100%;
      padding: 12px;
      font-size: 1rem;
      border: var(--border-width) solid var(--dark);
      border-radius: 6px;
      background: #fff;
      color: var(--dark);
    }
    .form-control:focus {
      outline: none;
      box-shadow: var(--brutal-shadow-sm);
    }

    /* 帮助中心 */
    #help {
      background: #fdf5f2;
      border-bottom: var(--border-width) solid var(--dark);
    }

    /* 服务网络 */
    #network {
      background: #fff;
      border-bottom: var(--border-width) solid var(--dark);
    }
    .network-list {
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      justify-content: center;
    }
    .network-badge {
      background: var(--light);
      border: var(--border-width) solid var(--dark);
      padding: 10px 20px;
      font-weight: 800;
      border-radius: 8px;
      box-shadow: var(--brutal-shadow-sm);
    }

    /* 页脚 */
    footer {
      background: var(--dark);
      color: #fff;
      padding: 60px 0 20px 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: var(--primary);
      margin-bottom: 20px;
      font-size: 1.2rem;
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: #ccc;
      text-decoration: none;
      transition: color 0.2s;
    }
    .footer-col ul li a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid #333;
      padding-top: 20px;
      text-align: center;
      font-size: 0.9rem;
      color: #888;
    }
    .friend-links a {
      color: var(--primary);
      text-decoration: none;
      margin-right: 15px;
      font-weight: bold;
    }

    /* 浮动客服入口 */
    .float-kefu {
      position: fixed;
      right: 25px;
      bottom: 25px;
      z-index: 999;
      background: var(--secondary);
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow-sm);
      border-radius: 50%;
      width: 60px;
      height: 60px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: transform 0.2s;
    }
    .float-kefu:hover {
      transform: scale(1.1);
    }
    .float-kefu svg {
      fill: #fff;
      width: 30px;
      height: 30px;
    }
    .kefu-modal {
      display: none;
      position: fixed;
      right: 95px;
      bottom: 25px;
      z-index: 999;
      background: #fff;
      border: var(--border-width) solid var(--dark);
      box-shadow: var(--brutal-shadow);
      padding: 20px;
      border-radius: 12px;
      text-align: center;
    }

    /* 响应式媒体查询 */
    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: #fff;
        border-bottom: var(--border-width) solid var(--dark);
        padding: 20px;
        gap: 15px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
      }
      .nav-menu.active {
        display: flex;
      }
      .hero-title-h1 {
        font-size: 2.3rem;
      }
      .about-box, .contact-layout {
        grid-template-columns: 1fr;
      }
    }