cform alignment issue

i was facing a page alignment issue, by view using samsung note 4. for the page https://www.xinxiangshicheng.com/wenjuan/huangdang.

as i was installed a wp touch mobile plugin for the mobile user to have a nice view for it!

notice that the cform showing is not complete in the width which show in the mobile.

can you please teach how to solve it?

https://www.ads-software.com/plugins/cforms2/