diff --git a/Zhihu-Enhanced.user.js b/Zhihu-Enhanced.user.js
index 2c9cf60..f1a48e6 100644
--- a/Zhihu-Enhanced.user.js
+++ b/Zhihu-Enhanced.user.js
@@ -1070,6 +1070,7 @@ function addTypeTips() {
 .AnswerItem .ContentItem-title a:not(.zhihu_e_toQuestion)::before {content:'问题';color: #f68b83;background-color: #f68b8333;${style}}
 .TopstoryQuestionAskItem .ContentItem-title a:not(.zhihu_e_toQuestion)::before {content:'问题';color: #ff5a4e;background-color: #ff5a4e33;${style}}
 .ZVideoItem .ContentItem-title a::before, .ZvideoItem .ContentItem-title a::before {content:'视频';color: #00BCD4;background-color: #00BCD433;${style}}
+.PinItem .RichContent span .RichContent-inner span.RichText::before {content:'想法';color: #4CAF50;background-color: #4CAF5033;${style}}
 .ArticleItem .ContentItem-title a::before {content:'文章';color: #2196F3;background-color: #2196F333;${style}}`;
 }