.case-return{position:fixed;right:24px;top:18px;z-index:20;padding:11px 18px;border:1px solid #deded8;border-radius:24px;background:#fff;color:#232b27;font-size:13px;line-height:1.5;text-decoration:none}
.case-return:hover{background:#232b27;color:#fff}
body>header{padding-top:76px}
.wuxin-article main{padding-top:84px}
@media(max-width:700px){.case-return{right:16px;top:12px;padding:9px 14px;font-size:12px}body>header{padding-top:68px}.wuxin-article main{padding-top:76px}}