.fixed-ad {
  position: fixed;
  bottom: 30px;
  right: 40px;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.fixed-ad.show {
  opacity: 1;
  pointer-events: auto;
}

.fixed-ad img {
  width: 180px;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.close-btn {
  position: absolute;
  top: -8px;
  right: -8px;
  background: #fff;
  border: 1px solid #999;
  border-radius: 50px;
  width: 24px;
  height: 24px;
  font-size: 16px;
  line-height: 20px;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.close-btn:hover {
  background: #f2f2f2;
}