更新简化了置顶引导内容，删减过时内容，更新群组频道推荐，新增 iOS解除敏感内容限制 及 解除私聊限制 等相关内容

#公告 #index

【系统警告】由于您长时间在本频道出于非活跃状态，根据安全监测规则，您的账户已被频道机器人标记为可疑用户。为维护频道的安全和秩序，您的账户已被频道永久封禁，且不再接受任何恢复请求。感谢您的理解与配合。
【System Warning】
Due to prolonged inactivity in this channel, and in accordance with our security monitoring rules, your account has been flagged as suspicious by the channel bot. To maintain the security and order of the channel, your account has been permanently banned, and no restoration requests will be accepted. Thank you for your understanding and cooperation.