.aswcb-btn {
  position: fixed;
  right: 15px;
  bottom: 40%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
  z-index: 9999;
  animation: aswcb-shake 4s infinite;
}

.aswcb-btn img {
  width: 24px;
  height: 24px;
}

.aswcb-btn span::after {
  content: " ✔";
}

@keyframes aswcb-shake {
  0% { transform: translateX(0); }
  10% { transform: translateX(-2px); }
  20% { transform: translateX(2px); }
  30% { transform: translateX(-2px); }
  40% { transform: translateX(2px); }
  50% { transform: translateX(0); }
}