diff --git a/pages/index/index.vue b/pages/index/index.vue
index 67d4b45..a39c558 100644
--- a/pages/index/index.vue
+++ b/pages/index/index.vue
@@ -43,11 +43,12 @@
 				],
 				guideList: [
 					{
-						bg: 'https://aliyunoss.hn12301.net/hhrs/hhrs_cjzn.png',
+						// xuchao: ?v= 为图片版本参数，运营换图必须同步更新日期，否则各平台 WebView/CDN 会继续命中旧缓存
+						bg: 'https://aliyunoss.hn12301.net/hhrs/hhrs_cjzn.png?v=20260928',
 						url: '/pages/guide/join'
 					},
 					{
-						bg: 'https://aliyunoss.hn12301.net/hhrs/hhrs_syzn.png',
+						bg: 'https://aliyunoss.hn12301.net/hhrs/hhrs_syzn.png?v=20260928',
 						url: '/pages/guide/use'
 					}
 				],