diff --git a/frontend/src/app/(investor)/dashboard/page.tsx b/frontend/src/app/(investor)/dashboard/page.tsx
index a2e2f20..86b73df 100644
--- a/frontend/src/app/(investor)/dashboard/page.tsx
+++ b/frontend/src/app/(investor)/dashboard/page.tsx
@@ -153,7 +153,7 @@ export default function InvestorDashboardPage() {
       </div>
 
       {/* T2.12 热力图 + 趋势对比 */}
-      <div className="grid gap-4 lg:grid-cols-2">
+      <div className="space-y-4">
         <div className="rounded-lg border bg-white p-5 shadow-sm">
           <h2 className="mb-4 text-lg font-semibold">健康度热力图</h2>
           <HealthHeatmap />