MySilk.cn in Chinese

This is a site we've done for our client: http://mall.mysilk.cn/

Any suggestions appreciated. :)

Hi Brad,

Very good job! Here are some suggestions:

1. Arrows in the top menu (the first menu item - popup) are a bit confusing. People can think that there are more sub-categories after 所有商品分类 > 真丝四件套 but they cannot be opened.
2. The site does not look fine on iPad.
3. I cannot click "Checkout" button in the mini-shopping cart ("购物车"). The popup block is closed when I try to move mouse to it (Google Chrome).