Need help diagnosing a subtle problem

The site (link below) is using Parabola, and there’s this weird thing where the font styling on list entries seems to be heavier than the styling on normal paragraph text. It’s subtle but real.

I’m trying to uncover the source of the difference and reset the list styling to match the basic paragraph text styling. My puny css diagnosis skills are failing me.

The page below has both styles on it for your examination.

Website: kevindelaplante.com/about