Adjusting the width of the middle column

[rickeygong]

How can I adjust the width of the middle column? It's currently too narrow, making the reading experience poor.

I've tried the following, but they didn't work.

Adjusting the code in the file /themes/hugo-theme-stack/assets/scss/grid.scss.

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[中文]
如何调整中间栏目的宽度？目前太窄了，感觉阅读体验不是很好。

我做过以下尝试，没有效果。

调整路径：/themes/hugo-theme-stack/assets/scss/grid.scss的代码（红框）