Edit style of text section on homepage - Broadcast theme

[justin_shima]

Hello, I'm using the Broadcast theme and I want to modify the font weights of certain parts of a text section on the homepage, and only for that section. I couldn't do this in customize theme mode, so I've been trying to custom code it but I'm not sure where and how I'd apply the html/css changes. Attached a photo below for more context. For example, I want to make 'Meaningful Designs' bold, but the paragraph below it light. My site is shimajewelry.com

[Zworthkey]

Hii, @justin_shima 
Kindly share your store URL so,
I can solve it perfectly.
Thank You.

[Zworthkey]

@justin_shima 
Paste this code on top of the theme.scss file.

.standard__rte.font--2.columns--1.aos-init.aos-animate p {
    font-weight: bolder !important;
    font-size: 14px !important;
}

Thank You.

[justin_shima]

I think that makes the whole section bold. But that's not what I'm looking for – I want to change the font weight for specific lines. Is there a way to do this with inline styles?