diff --git a/board/templates/admin/board/reportrecord/change_list.html b/board/templates/admin/board/reportrecord/change_list.html
index 766a1c0..10ca523 100644
--- a/board/templates/admin/board/reportrecord/change_list.html
+++ b/board/templates/admin/board/reportrecord/change_list.html
@@ -3,6 +3,10 @@
 {% block extrastyle %}
 {{ block.super }}
 <style>
+.winbox {
+    background: var(--border-color);
+}
+
 .field-post_body {
     width: 100%;
 }