满$200有20% off，会员登陆之后放到车里自动减
https://bluemercury.com/collections/best-sellers
La Mer 都参加，可以买新出的晚霜
https://bluemercury.com/collections/la-mer
晚霜之前已经买了，使用感很不错
https://bluemercury.com/collections/la-mer/products/la-mer-the-rejuvenating-night-cream
Dyson 的各种美发工具都有20% off
https://bluemercury.com/collections/dyson
直发夹好用
https://bluemercury.com/collections/dyson/products/dyson-special-edition-airstrait-straightener-in-strawberry-bronze-and-blush-pink
