fix(modal): outside content can't be interacted with show-mask is set to `false

Author: 07akioni

CHANGELOG.en-US.md

@@ -6,6 +6,7 @@
 
 - Fix seemly dependency version range allows incompatible versions.
 - Fix `n-progress` style is incorrect after using the dashboard mode exceeding 100%, closes [#6627](https://github.com/tusen-ai/naive-ui/issues/6627)
+- Fix `n-modal`'s outside content can't be interacted with `show-mask` is set to `false`.
 
 ### Feats
 

CHANGELOG.zh-CN.md

@@ -6,6 +6,7 @@
 
 - 修复 seemly 依赖的版本未更新到最新
 - 修复 `n-progress` 使用仪表盘模式超过 100% 之后样式不正确，关闭 [#6627](https://github.com/tusen-ai/naive-ui/issues/6627)
+- 修复 `n-modal` 在 `show-mask` 为 `false` 的情况下，外部内容不能被操作
 
 ### Feats
 

src/modal/src/styles/index.cssr.ts

@@ -46,9 +46,11 @@ export default c([
       position: relative;
     `),
     cM('mask-hidden', `pointer-events: none;`, [
-      c('> *', `
-        pointer-events: all;
-      `)
+      cB('modal-scroll-content', [
+        c('> *', `
+          pointer-events: all;
+        `)
+      ])
     ])
   ]),
   cB('modal', `