diff --git a/frontend/app/trades/page.tsx b/frontend/app/trades/page.tsx
index da4be42..5cd6cec 100644
--- a/frontend/app/trades/page.tsx
+++ b/frontend/app/trades/page.tsx
@@ -100,7 +100,7 @@ function LiveTrades({ symbol }: { symbol: Symbol }) {
         </p>
       </div>
       {/* 桌面端固定高度内滚，手机端展开不嵌套滚动 */}
-      <div className="lg:overflow-y-auto lg:h-[420px]">
+      <div className="lg:overflow-y-auto lg:h-[420px] flex-1 bg-white">
         {loading ? (
           <div className="flex items-center justify-center h-24 text-slate-400 text-sm">加载中...</div>
         ) : (