Why isn't half of the styles showing up?

Question

CMS

Hello everyone, plz tell me.
The site has a css file and it says that line 1678 has these styles.
I go to the css file on the server, and it ends on line 474, and it is abrupt.
Where can the rest be? there is only 1 main css in the folder at this path.

Answer 1

Add file version:
<link rel="stylesheet" href="style.css?v=<?echo date("dmyhis",filemtime('style.css'));?>">