After the vue project is packaged, the css style attribute value of a certain line is lost

Question

Background：

In the vue project, sass syntax is used，There is a vue file containing the following code，The effects are different after local preview and packaged release.

background: repeating-linear-gradient(red 0px 1px, transparent 0px 2px) 40px 0px/1px 100% no-repeat;

Local browser f12 preview：

After executing the npm run build command：

As you can see, the "0" after "red" is lost, How to solve this problem?

Thanks!