Link colors wrong

I’m at the very beginning of trying to understand web page design so - sorry if this is a really stupid question. Laid out and published the first page of the site but the link colors are wrong and for the life of me I can’t seem to figure out why. They’re supposed to be orange - white on rollover but they’re purple - white on rollover. Ran a search but no help there.

Thanks in advance for any help solving this.