m.youtube.com：移除/失效化遮罩层(scrim/backdrop)与背景 inert 锁定，让打开评论/播放清单/分享/搜索等面板时仍可点击页面其它区域（降低“跳到 Description/滚动乱跳”副作用）
它干嘛的？
👉 把 YouTube 手机上那些“挡住你点东西的黑色/透明遮罩层”关掉。
平时在 m.youtube.com 上：
打开评论、播放列表、分享、搜索
页面会盖一层“遮罩”，
结果 别的地方点不了、滑不了，还经常乱跳到 Description
这个脚本做的事就是：
把这些遮罩层变成“空气”
让手指点下去 直接穿透
背景依然能点、能滑
还特意避免页面滚动乱跳
一句话：
👉 让 YouTube 手机版别再“强行锁屏式操作”，用起来更像正常网页。
English Version (Plain English)
This is a Tampermonkey userscript for YouTube Mobile (m.youtube.com).
What does it do?
👉 It disables those invisible / dark overlay layers that block your taps when YouTube opens panels like comments, playlists, share sheets, etc.
Normally on mobile YouTube:
An overlay covers the page
Background becomes untouchable
Scrolling jumps around (especially to the description)
This script:
Makes overlays ignore touch/click events
Lets your taps pass through
Keeps the background interactive
Avoids scroll-jump side effects on purpose
In one sentence:
👉 It removes YouTube Mobile’s “you can’t touch this” overlays and makes the page behave normally.
