更新开场动画

web/src/components/welcome/index.vue

@@ -71,11 +71,10 @@ export default {
   }
   .SeLanguage {
     opacity: 0;
-    transition: all 1s;
+    transition: all 1.5s;
     position: absolute;
     top: 0;
     left: 0;
-    background-color: rgba(0, 0, 0, 0.8);
     width: 100%;
     height: 100%;
     .box {