修复板块切换数据合并：行业/概念使用独立 useQuery 隔离数据

src/routes/sectors.tsx

@@ -23,12 +23,22 @@ function SectorsPage() {
   const [sortKey, setSortKey] = useState<SortKey>("mainNetInflow");
   const [asc, setAsc] = useState(true);
 
-  const { data = [], isLoading, isFetching, refetch } = useQuery({
-    queryKey: ["sectors", tab],
-    queryFn: ({ signal }) => fetchSectors(tab, signal),
+  // 行业 / 概念 各自独立的 Query，数据完全隔离，杜绝来回切换时的合并
+  const industryQ = useQuery({
+    queryKey: ["sectors", "industry"],
+    queryFn: ({ signal }) => fetchSectors("industry", signal),
     staleTime: 30_000,
     retry: false,
   });
+  const conceptQ = useQuery({
+    queryKey: ["sectors", "concept"],
+    queryFn: ({ signal }) => fetchSectors("concept", signal),
+    staleTime: 30_000,
+    retry: false,
+  });
+
+  const { data = [], isLoading, isFetching, refetch } =
+    tab === "industry" ? industryQ : conceptQ;
 
   const sorted = useMemo(() => {
     const dir = asc ? 1 : -1;