[Bug] `@univerjs/design/lib/index.css` has a wrong syntax

[John Won]

Before you submit this issue, have you checked the following

• Is this really a problem?
• I have searched the Github Issues for similar issues, but did not find anything.

Affected packages and versions

0.1.14

Reproduction link

This bug has no repo, this is a CSS building bug with vite.

Expected behavior

.univer-date-picker-dropdown-placement-topLeft .univer-date-picker-range-arrow,
.univer-date-picker-dropdown-placement-topRight .univer-date-picker-range-arrow {
- bottom: 10px / 2 + 1px;
+ bottom: 6px;
  transform: rotate(135deg);
}

Actual behavior

This wrong operator makes error reporting.

System information

No response