#goShopBtn{
  position:fixed; right:18px; bottom:18px; z-index:9999;
  padding:12px 14px; border-radius:14px;
  border:1px solid rgba(214,179,106,.35);
  background:linear-gradient(180deg, rgba(214,179,106,.22), rgba(214,179,106,.08));
  color:#f1f2f6; font-weight:750; text-decoration:none;
  box-shadow: 0 18px 50px rgba(0,0,0,.35);
}
#goShopBtn:hover{filter:brightness(1.05)}