[Style] [dialog] `ElDialog` 全屏模式下内容区没有撑开

Bug Type: Style

Environment

• Vue Version: 3.5.30
• Element Plus Version: 2.13.6
• Browser / OS: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
• Build Tool: Vite

Reproduction

Related Component

• el-dialog

Reproduction Link

Element Plus Playground

Steps to reproduce

打开示例就能看到

What is Expected?

全屏模式下期望内容区高度默认撑开，内容超出高度时只有内容区出现滚动条，与 ElDrawer 和 ElCard 类似。

What is actually happening?

目前全屏弹窗内容区高度无法撑开。

Additional comments

(empty)