修改

src/pages/financial/accDetail/CashAccDetail.vue

@@ -42,6 +42,10 @@
   }
   ._addChuNa_tit{color: gray;margin-bottom: 10px;}
   ._addChuNa_tit span{ color:#333333}
+  .el-select-dropdown{
+    z-index:99999;
+  }
+
 </style>
 <template>
   <div  class='flexOne page_CompanyAccDetail'>

src/pages/financial/accDetail/CompanyAccDetail.vue

@@ -63,7 +63,9 @@
     font-size: 12px;
     color: #c94052;
   }
-
+  .el-select-dropdown{
+    z-index:99999;
+  }
 </style>
 <template>
   <div  class='flexOne page_CompanyAccDetail'>

src/pages/financial/accDetail/PlatformAccDetail.vue

@@ -31,6 +31,10 @@
   .PlatHebing td{
     padding:5px;
   }
+  .el-select-dropdown{
+    z-index:99999;
+  }
+
 </style>
 <template>
   <div  class='flexOne page_CompanyAccDetail'>