[wozhenbang2004]

Declarations after @at-root are currently emitted in the original parent rule, ahead of the rule that @at-root hoists. If both rules set the same property on the same selector, this can reverse the cascade.

Reuse the existing declaration handling for hoisted rules so later declarations are emitted after @at-root. Both shorthand and block regressions fail on the unmodified implementation. pnpm test passes all 81 tests with the fix.

[ai]

Can you show input, before and after exampes?

[wozhenbang2004]

For example, this input:

a {
  color: red;
  @at-root a { color: blue; }
  color: green;
}

Before:

a { color: red; color: green; }
a { color: blue; }

After:

a { color: red; }
a { color: blue; }
a { color: green; }

The old output makes blue win; keeping the final declaration after the hoisted rule makes green win. The added tests cover both this shorthand and the @at-root { ... } form.

[ai]

Thanks