How to I make the Heading "bold" on Collapsible Row in Product Description page

[g30_2a]

Hello, 

I'm trying to make the Heading of the collapsible row into Bold so it looks more clear. 

This on the Product Page / Description.

Let me know if there is a solution.

[g30_2a]

Hello, 

The link is https://he-fe.com/products/deo-serum

I presume the location is 

}.product__accordion .accordion__content 

But need the code to make the font weight bold

[g30_2a]

Works perfect!

Thank you!