/* Äɽ¾¥«¡¼¥È */
.floating-cart {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #fff;
  padding: 16px;
  border-radius: 16px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.18);
  z-index: 99999;
  width: 260px;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.floating-cart.hidden {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

.floating-cart .cart-button {