更新

assets/css/joe.global.scss

@@ -278,11 +278,23 @@
                 left: 0;
                 width: 100%;
                 height: 273px;
-                background: url('https://cdn.jsdelivr.net/npm/typecho_joe_theme@4.3.5/assets/img/snow.gif') no-repeat;
+                background: url('https://cdn.jsdelivr.net/gh/HaoOuBa/Joe@master/assets/img/snow.gif') no-repeat;
                 background-size: cover;
                 z-index: 3;
                 pointer-events: none;
             }
+            &:hover::after {
+                display: block;
+            }
+            .image {
+                position: absolute;
+                top: 0;
+                left: 0;
+                width: 100%;
+                height: 120px;
+                object-fit: cover;
+                z-index: 1;
+            }
         }
     }
 }