diff --git a/examples/sites/src/views/components-doc/components/api-docs.vue b/examples/sites/src/views/components-doc/components/api-docs.vue
index 7f03ea6185..9a7baedf5f 100644
--- a/examples/sites/src/views/components-doc/components/api-docs.vue
+++ b/examples/sites/src/views/components-doc/components/api-docs.vue
@@ -220,10 +220,6 @@ defineExpose({ jumpToApi })
     padding-left: 16px;
   }
 
-  :deep(.tiny-grid-body__expanded-cell) {
-    background-color: #fafafa;
-  }
-
   :deep(code) {
     color: #476582;
     padding: 4px 8px;
diff --git a/packages/theme/src/grid/table.less b/packages/theme/src/grid/table.less
index 3964c896cd..8fbe0c43e6 100644
--- a/packages/theme/src/grid/table.less
+++ b/packages/theme/src/grid/table.less
@@ -26,7 +26,7 @@
   overflow: hidden;
   font-size: var(--tv-Grid-font-size);
   color: var(--tv-Grid-text-color);
-  background-color: #fff;
+  background-color: var(--tv-Grid-bg-color);
 
   // 展开行背景颜色
   .@{grid-prefix-cls}-body__expanded-row {