.ph4.js>div{opacity:.12;transition:opacity 1.1s ease;border-top:0}
.ph4.js>div:before{content:'';position:absolute;left:0;right:0;top:0;height:3px;background:var(--ak);transform:scaleX(0);transform-origin:left;transition:transform 1.2s cubic-bezier(.4,0,.2,1)}
.ph4.js>div i{opacity:0;transition:opacity 1s ease .35s}
.ph4.js>div b,.ph4.js>div em,.ph4.js>div span{transition:opacity 1s ease .2s}
.ph4.js>div.on{opacity:1}
.ph4.js>div.on:before{transform:scaleX(1)}
.ph4.js>div.on i{opacity:1}