diff --git a/css/details.css b/css/details.css
index fbc206c..830c0ea 100644
--- a/css/details.css
+++ b/css/details.css
@@ -234,6 +234,13 @@
   left: 0;
   top: 0;
 }
+.content .side .item .red-amount {
+  padding: 0 5px;
+  background-color: #f95d5d;
+  height: 16px;
+  font-size: 12px;
+  border-radius: 10px;
+}
 .content .details-box {
   background-color: #fbfbfb;
   border-radius: 0 12px 12px 0;
diff --git a/css/details.less b/css/details.less
index 266ecd8..56a5944 100644
--- a/css/details.less
+++ b/css/details.less
@@ -259,6 +259,14 @@
                     top: 0;
                 }
             }
+
+            .red-amount {
+                padding: 0 5px;
+                background-color: rgba(249, 93, 93, 1);
+                height: 16px;
+                font-size: 12px;
+                border-radius: 10px;
+            }
         }
     }