智能聊天产品的变化，已经正在超越表达更像人。更深的转折，是用户的起点从切应用，变成讲目标。过去完成订票，常要穿过复杂菜单；现在智能入口开始把这些路径组织成一条任务链。它不再只是消息窗口，而是任务入口。 这种产品的核心升级，是从问答型AI�

As intelligent chat tools become part of everyday digital work, their ability to protect information has become an essential condition for adoption. Users may share private conversations, project data, and professional knowledge during a single interaction. A useful system must therefore do more