What is the fine-grained topic of the following text: What happened: Youzan, a Hangzhou-based mobile e-commerce platform, announced at its annual meeting on Jan. 17 that the company would adopt the “996” working schedule, in which workdays start at around 9 a.m., finish at 9 p.m., and extend into the weekend. Only return the topic.
Youzan adopting the "996" working schedule.