🧐 [问题] pro-layout 在 mix 模式下，侧边栏样式如何设置为和普通模式下一样的效果

提问前先看看：

https://github.com/ryanhanwu/How-To-Ask-Questions-The-Smart-Way/blob/main/README-zh_CN.md

### 🧐 问题描述

请问 pro-layout 在 mix 模式下，侧边栏样式如何设置为和普通模式下一样的效果

### 💻 示例代码

### 🚑 其他信息

mix 模式下的样式：

期望样式：

The issue concerns pro-layout's mix mode and asks for its sidebar to match the normal-mode appearance. Start by locating the configuration and styling entry points for these two modes, then compare them with the provided screenshots. Done means the mix-mode sidebar visually matches the expected normal-mode sidebar.

Written by the indexing model from the issue text.