-----

public/css/main.css

@@ -463,7 +463,7 @@ ul {
     width: 40px;
     border-radius: 50%;
     background-repeat: no-repeat;
-    background-image: url(https://pan.usj.cc/d/%F0%9F%A7%B0%E6%96%87%E4%BB%B6/uptop.svg);
+    background-image: url(../image/uptop.svg);
     background-position: center center;
     /* 将背景图像居中对齐 */
     color: #fff;