resistancemonitor/2.Web/static/css/layui-layer.scss

// 关闭按钮
.layui-layer .layui-layer-ico,
.layer_station .layui-layer .layui-layer-ico {
  background: url("../../static/img/layerClose.png") no-repeat;
}

// 背景颜色
/deep/ .layui-layer .layui-layer-title {
  height: 55px;
  line-height: 55px;
  font-size: 18px;
  background-color: rgba(6, 34, 99, 0.1);
  color: white;
  border-bottom: none;
  padding: 0;
}