diff --git a/web/src/pages/Knowledge.tsx b/web/src/pages/Knowledge.tsx
index 1dff981..81856f8 100644
--- a/web/src/pages/Knowledge.tsx
+++ b/web/src/pages/Knowledge.tsx
@@ -263,6 +263,8 @@ export function KnowledgePage() {
       setHits(null);
       return;
     }
+    // 检索结果是一组切片，和列表里的条目不是同一批东西，选中态在这里没有意义
+    cancelSelect();
     setSearching(true);
     setError(null);
     try {
@@ -397,6 +399,7 @@ export function KnowledgePage() {
           selected={catFilter}
           loading={loading}
           onSelect={(value) => {
+            cancelSelect();
             setCatFilter(value);
             setTagFilter(null);
             setHits(null);
@@ -404,6 +407,7 @@ export function KnowledgePage() {
           tags={tags}
           tagSelected={tagFilter}
           onSelectTag={(name) => {
+            cancelSelect();
             setTagFilter((prev) => (prev === name ? null : name));
             setHits(null);
           }}
@@ -420,7 +424,11 @@ export function KnowledgePage() {
           return (
             <button
               key={t.key}
-              onClick={() => setTab(t.key)}
+              onClick={() => {
+                // 切视图后列表换了，旧选中项可能已经不在眼前，别让人搬走看不见的东西
+                cancelSelect();
+                setTab(t.key);
+              }}
               className={`rounded-lg px-2.5 py-1.5 text-sm font-medium transition-colors ${
                 active
                   ? "bg-white text-ink-900 shadow-sm ring-1 ring-line-200"