update:更新

src/styles/iview/date-picker.scss

 .ivu-date-picker-transfer {
-
+    padding: 0;
     .ivu-date-picker-cells-cell-selected:hover em,
     .ivu-date-picker-cells-cell-selected em {
         background: var(--app-color-blue);
@@ -44,6 +44,9 @@
                     border: 1px solid transparent;
                     white-space: nowrap;
                 }
+                .ivu-btn-default{
+                    border: 1px solid rgb(220,222,226);
+                }
             }
         }
     }