Change color of my email link

I want to change the color on my email link to blue like standard. Right now email link is not set up so the text is black but when I make the email active, the color is the same as my background which means I don’t see my email until I hover my mouse. Where is it in my stylesheet so I can change it? I can’t seem to find it. Please help. Here’s my website

https://dssfast.com/contact-us/