var tubiao = document.querySelector('#c_static_001-1668737428617 .e_container-37')
var xunhuan = document.querySelector('#c_static_001-1668737428617 .e_container-21')
function scroll(){
  	if(xunhuan.getBoundingClientRect().top<=110){
      tubiao.setAttribute("class","e_container-37 xg")
	}
  	else if(xunhuan.getBoundingClientRect().top>110){
      tubiao.setAttribute("class","e_container-37")
    }
}
//每次屏幕滑动时韶会检测到，调用scroll方法时刻更新导航栏背景色
window.addEventListener('scroll',function(){
	scroll();
})
scroll();