.back_to_top_container{position:fixed;z-index:3;right:30px;bottom:30px;pointer-events:none}.back_to_top_container #back_to_top{color:#fff;display:block;width:49px;height:49px;cursor:pointer;transition:all .3s;text-align:center;pointer-events:none;opacity:0;border-width:2px;border-style:solid;border-radius:50%;box-sizing:border-box}.back_to_top_container #back_to_top:after{position:absolute;top:50%;left:50%;width:12px;height:12px;margin:-3px 0 0 -6px;content:"";border:1px solid;border-right:none;border-bottom:none;-webkit-transform:rotate(45deg) translate(0);-ms-transform:rotate(45deg) translate(0);transform:rotate(45deg) translate(0);box-sizing:border-box}.back_to_top_container #back_to_top.show{pointer-events:auto;opacity:1}.back_to_top_container #back_to_top.show:hover{background:var(--theme_color);border-color:var(--theme_color);color:#fff}.gt3_back2top{font-size:0}