社交电商把交易放进同一个环境，聊天应用则进一步把购物变成连续会话。顾客不再只浏览静态页面，而会询问“多久能送到”。这种互动能够降低信息搜索成本，也让品牌从一次曝光进入更长的决策流程。 好的智能导购首先应该提问，而不是急着发送购买链接。

The history of digital conversation begins well before social platforms. In the period of mainframe dominance, computers were room-sized, scarce, and far from ordinary users. Work was usually handled through queued jobs. People prepared paper tapes, submitted programs and data, and waited for a l