#scroll-style2-wrap{position:fixed;right:10px;top:60%;transform:translateY(-50%);z-index:9999;opacity:0;pointer-events:none;transition:opacity 0.3s ease;visibility:hidden}.scroll2-btn{width:30px;height:30px;line-height:30px;text-align:center;border-radius:50%;border:none;font-weight:700;font-size:14px;color:#fff;background-color:#f44;cursor:pointer;opacity:.4;transition:all 0.3s ease;position:relative;z-index:2}.scroll2-btn.active{opacity:.8}.top2-btn{width:30px;height:30px;text-align:center;border-radius:50%;border:none;font-weight:700;font-size:14px;color:#fff;background-color:#a9a9a9;cursor:pointer;opacity:.4;transition:all 0.3s ease;position:absolute;top:80px;left:0;z-index:1}.top2-btn.hidden{display:none}@media screen and (min-width:1025px){.article-content{position:relative}}