Text adjustment

In this link https://signaturecoats.in/faqs/ there are FAQs. I am using Sydney theme. The screenshot can be seen at https://drive.google.com/file/d/1imI2g4dGT2nPul0oH6k3Lx6iWv1Wvd4l/view?usp=drive_link

1. I want the text of the question to be bold. How to do that ?
2. How to reduce the gap between the question and their respective answer as market in the screenshot ?

The page I need help with: [log in to see the link]