.fade {
  opacity: 0;
  transform: translateY(12px);
  transition: all .6s ease;
  position: absolute;
  inset: 0;
}
.fade.show {
  opacity: 1;
  transform: translateY(0);
  position: relative;
}
.tg-float {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 56px;
  height: 56px;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #229ED9;
  color: #fff;
  font-size: 26px;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0,0,0,.18);
  transition: transform .15s ease, box-shadow .15s ease;
}
.tg-float:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 12px 28px rgba(0,0,0,.22);
}
.tg-float:active {
  transform: translateY(0) scale(0.97);
}
.tg-float::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:inherit;
  box-shadow: 0 0 0 0 rgba(34,158,217,.45);
  animation: tg-pulse 2s infinite;
}
@keyframes tg-pulse {
  0% { box-shadow: 0 0 0 0 rgba(34,158,217,.45) }
  70% { box-shadow: 0 0 0 16px rgba(34,158,217,0) }
  100% { box-shadow: 0 0 0 0 rgba(34,158,217,0) }
}