diff --git a/frontend/src/pages/StockAnalysis.tsx b/frontend/src/pages/StockAnalysis.tsx
index 905ed65..959a284 100644
--- a/frontend/src/pages/StockAnalysis.tsx
+++ b/frontend/src/pages/StockAnalysis.tsx
@@ -90,7 +90,7 @@ export function StockAnalysis() {
         }
       />
 
-      <div className="px-8 py-6 space-y-6 max-w-7xl">
+      <div className="w-full max-w-none px-8 py-6 space-y-6">
         {/* 搜索栏 */}
         <div className="flex items-center gap-3">
           <div className="w-72">
diff --git a/screenshots/stock-analysis-ultrawide-fix.png b/screenshots/stock-analysis-ultrawide-fix.png
new file mode 100644
index 0000000..8285006
Binary files /dev/null and b/screenshots/stock-analysis-ultrawide-fix.png differ