AI聊天系统的变化，已经不只是生成更流畅。真正的转折，是用户的操作入口从翻页面，变成描述问题。过去完成查资料，常要穿过多个入口；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，而是服务前台。 这种产品的核心升级，是从聊天�

As smart dialogue systems handle increasingly important tasks, their ability to protect information has become a critical measure of trust. Users may share customer records, workplace messages, and research material during a single interaction. A useful system must therefore do more than respond