智能聊天产品的变化，已经不只是生成更流畅。关键的转折，是用户的第一动作从搜功能，变成讲目标。过去完成报销，常要穿过复杂菜单；现在聊天框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 a major operational concern. Users may share financial details, medical information, and confidential files during a single interaction. A useful system must therefore do more than auto