:root{color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;padding:0}#root{margin:0;padding:0;width:100%}.case-page{padding:80px 0}.case-back{display:inline-block;margin-bottom:30px;text-decoration:none;color:#9aa4b2}.case-sub{color:#9aa4b2;margin-bottom:20px}.case-page h2{margin-top:50px;font-size:1.6rem;position:relative}.case-page h2:after{content:"";width:60px;height:3px;background:#ff7a4d;display:inline-block;margin-left:10px}