var dpr = 1, uagent = window.navigator.useragent;
var isios = uagent.match(/iphone/i);
var isyixin = uagent.match(/yixin/i);
var is2345 = uagent.match(/mb2345/i);
var ishaosou = uagent.match(/mso_app/i);
var issogou = uagent.match(/sogoumobilebrowser/ig);
var isliebao = uagent.match(/liebaofast/i);
var isgnbr = uagent.match(/gnbr/i);
function resizeroot(){
    var wwidth = (screen.width > 0) ? (window.innerwidth >= screen.width || window.innerwidth == 0) ? screen.width : window.innerwidth : window.innerwidth, wdpr, wfsize;
    var wheight = (screen.height > 0) ? (window.innerheight >= screen.height || window.innerheight == 0) ? screen.height : window.innerheight : window.innerheight;
    if (window.devicepixelratio) {
        wdpr = window.devicepixelratio;
    } else {
        wdpr = isios ? wwidth > 818 ? 3 : wwidth > 480 ? 2 : 1 : 1;
    }
    if(isios) {
        wwidth = screen.width;
        wheight = screen.height;
    }
    // if(window.orientation==90||window.orientation==-90){
    //     wwidth = wheight;
    // }else if((window.orientation==180||window.orientation==0)){
    // }
    if(wwidth > wheight){
        wwidth = wheight;
    }
    wfsize = wwidth > 1080 ? 144 : wwidth / 7.5;
    wfsize = wfsize > 32 ? wfsize : 32;
    window.screenwidth_ = wwidth;
    if(isyixin || is2345 || ishaosou || issogou || isliebao || isgnbr){
        settimeout(function(){
            wwidth = (screen.width > 0) ? (window.innerwidth >= screen.width || window.innerwidth == 0) ? screen.width : window.innerwidth : window.innerwidth;
            wheight = (screen.height > 0) ? (window.innerheight >= screen.height || window.innerheight == 0) ? screen.height : window.innerheight : window.innerheight;
            wfsize = wwidth > 1080 ? 144 : wwidth / 7.5;
            wfsize = wfsize > 32 ? wfsize : 32;
            // document.getelementsbytagname('html')[0].dataset.dpr = wdpr;
            document.getelementsbytagname('html')[0].style.fontsize = wfsize + 'px';
        },500);
    }else{
        // document.getelementsbytagname('html')[0].dataset.dpr = wdpr;
        document.getelementsbytagname('html')[0].style.fontsize = wfsize + 'px';
    }
}