diff --git a/apps/mall/pages/index.vue b/apps/mall/pages/index.vue
index b92f6c6..cf0ca24 100644
--- a/apps/mall/pages/index.vue
+++ b/apps/mall/pages/index.vue
@@ -194,8 +194,9 @@ const visibleFloors = computed(() => floors.value ?? []);
 }
 .floor-grid {
   flex: 1;
+  min-width: 0;
   display: grid;
-  grid-template-columns: repeat(4, 1fr);
+  grid-template-columns: repeat(4, minmax(0, 1fr));
   gap: 1px;
   background: var(--mall-line);
 }