.wyt-zap{
  position:fixed; right:18px; bottom:18px; z-index:999999;
  width:56px; height:56px; border-radius:50%;
  background:#25D366; display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 24px rgba(0,0,0,.22); transition:transform .15s ease;
}
.wyt-zap:hover{ transform: translateY(-2px); }
.wyt-zap svg{ width:28px; height:28px; fill:#fff; }
@media (max-width: 767px){ .wyt-zap{ bottom:84px; } }
/* Se o tema tiver classes de carrinho/checkout, esconde lá */
.pagina-carrinho .wyt-zap,
.pagina-checkout .wyt-zap,
.pagina-finalizar .wyt-zap{ display:none !important; }