[完善] 溢出隐藏css完善

src/app/ui/plan-assistance/plan-assistance.component.scss

@@ -106,6 +106,7 @@
 .center {
     flex: 1;
     min-width: 810px;
+    overflow: hidden;
     box-sizing: border-box;
     display: flex;
     flex-direction: column;