.wshare-back-hub{position:fixed;top:14px;left:14px;z-index:999999;background:rgba(20,30,60,.82);color:#fff;font-size:12.5px;font-family:-apple-system,"Hiragino Kaku Gothic Pro","Noto Sans JP",sans-serif;padding:7px 14px;border-radius:100px;text-decoration:none;box-shadow:0 2px 10px rgba(0,0,0,.18);backdrop-filter:blur(4px);white-space:nowrap}
.wshare-back-hub:hover{background:rgba(20,30,60,.95);color:#fff}
@media (max-width:600px){.wshare-back-hub{font-size:11px;padding:6px 11px;top:10px;left:10px}}