Bug: 面包屑显示背景时，样式错误

[elkon028]

Version

Vben Admin V5

Describe the bug?

Reproduction

当设置了字体大小且面包屑显示背景时，样式错误。如上图

html,body{
font-size: var(--el-font-size-base); // 14px
}

System Info

System:
    OS: macOS 14.6.1
    CPU: (14) arm64 Apple M3 Max
    Memory: 1.27 GB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.16.0 - /usr/local/bin/node
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 9.10.0 - /usr/local/bin/pnpm
    Watchman: 2024.09.02.00 - /opt/homebrew/bin/watchman
  Browsers:
    Chrome: 128.0.6613.138
    Safari: 17.6

Relevant log output

No response

Validations

• Read the docs
• Ensure the code is up to date. (Some issues have been fixed in the latest version)
• I have searched the existing issues and checked that my issue does not duplicate any existing issues.
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• The provided reproduction is a minimal reproducible example of the bug.