#standing-book[data-v-68de8b5a] .el-table thead.is-group tr:first-of-type th:first-of-type{border-bottom:none}#standing-book[data-v-68de8b5a] .el-table thead.is-group tr:first-of-type th:first-of-type:before{content:"";position:absolute;width:1px;height:120px;top:0;left:0;transform:rotate(-63deg);display:block;transform-origin:top;background-color:grey;opacity:.3}#standing-book[data-v-68de8b5a] .el-table thead.is-group tr:last-of-type th:first-of-type:before{content:"";position:absolute;width:1px;height:120px;bottom:0;right:0;transform:rotate(-64deg);display:block;transform-origin:bottom;background-color:grey;opacity:.3}