.fixed-model-call {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2147483647 !important;
  pointer-events: auto;
  will-change: transform, opacity;
}
.fixed-model-call .model-img {
  width: 150px;
  height: auto;
  display: block;
  pointer-events: none;
  user-select: none;
  background: rgba(0,0,0,0.12);
  border-radius: 18px;
}
.fixed-model-call .call-btn {
  margin-top: 10px;
  background: #ffd700;
  color: #000;
  font-size: 1rem;
  font-weight: bold;
  padding: 8px 18px;
  border-radius: 25px;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: background 0.3s ease, transform 0.2s ease;
  text-align: center;
}
.fixed-model-call .call-btn:hover {
  background: #ffea70;
  transform: scale(1.05);
}