修复消息turn有时展开异常

src/app/globals.css

@@ -231,6 +231,20 @@
 }
 
 
+/* Tool collapsible: fade-in on expand (height must change instantly for virtualizer) */
+.tool-collapsible-content[data-state="open"] > * {
+  animation: tool-content-fade 150ms ease-out;
+}
+
+@keyframes tool-content-fade {
+  from {
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
+}
+
 .select-none {
   -webkit-user-select: none;
   -moz-user-select: none;