- generic [active] [ref=e1]:
  - generic [ref=e7]:
    - generic [ref=e8]:
      - generic [ref=e10]: 
      - generic [ref=e12]: 聊天
      - generic [ref=e14]: 
    - generic [ref=e20]: 加载更多
    - generic [ref=e22]:
      - generic [ref=e24]: 
      - generic [ref=e27]:
        - generic: 输入消息...
        - textbox [ref=e28]
      - generic [ref=e30]: 
  - generic:
    - generic:
      - generic:
        - paragraph: 缺少认证信息