Works properly for me.
Please see a screenshot from my iPhone. http://prntscr.com/7fmpbz
Not by narrowing desktop window.
Seems like your server is still giving you issue on font-awesome fonts.
This is a screenshot from my desktop. http://prntscr.com/7fmqkn
No font-awesome icons.
See firebug, font-awesome loading from CDN or within Evolve theme are all blocked by CORS
I am no server expert and does not know how to resolve this CORS issue, but looking at your previous forum thread,
I think you are well verse in server setting. So perhaps this article is able to help you. http://benjaminhorn.io/code/setting-cors-cross-origin-resource-sharing-on-apache-with-correct-response-headers-allowing-everything-through/
Base on the fact that font-awesome fonts on our demo site is showing up properly, and the CORS errors seen in my firebug console when visiting your site, I would like to highlight that this is not a theme issue but your own server setup issue.