Thank you for your good work! It's beautiful and clean :-)

Here're some suggestions:

1. Cover
   Let the content lay over the cover when scrolling down, like this.
2. Fonts in cover
   The black font isn't clear when the cover is dark.
3. Footer
   Add busuanzi in the footer.
4. Language
   Is it possible to develop an English version and we can switch between English and Chinese?
5. Gallery
   Is it possible to use different photos in gallery as covers of different article and thumbnail?
6. Mobile version
   It's better to enlarge the side boundary.
7. Comment
   I found an awesome commentbox and you can try it.

Hope this can help you develop it. Thanks!