This may sound like an odd suggestions–it sure sounded odd
to me when someone suggested it to get rid of kitchen counter
stains from a can of cranberry juice. The answer: tootpaste.
I spread it fairly thick on the stain, rubbed it in a little
and waited about 10 minutes. It lifted the stains right up.
Scouring with cleansers etc. hadn’t worked, but this did. BTW
it’s also worked to get water rings off of wood furniture and taking
tarnish off of silver. Weird but true.

Hope it helps. If not, you can at least laugh about trying
something weird.