diff --git a/styles/theme.styl b/styles/theme.styl
index 351a8b3..1958ab0 100644
--- a/styles/theme.styl
+++ b/styles/theme.styl
@@ -212,3 +212,17 @@ th, td
 /************** 流程图的滚动条 **************/
 .vuepress-flowchart
   overflow: auto
+
+/************** SW-Update Popup **************/
+
+.sw-update-popup
+  border: none;
+  border-radius: $borderRadius;
+  box-shadow: var(--box-shadow);
+  color: var(--text-color);
+  > button
+    background: $accentColor;
+    border-radius: $borderRadius;
+    color: var(--text-color);
+    -webkit-tap-highlight-color:rgba(0, 0, 0, 0)
+    border: none;