#buynow_button {
  position: relative;
  display: inline-flex !important;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  line-height: 1.2;
  font-weight: 600;
}

#buynow_button::after {
  content: "Secure Checkout · Fast Delivery";
  font-size: 12px;
  font-weight: 400;
  opacity: 0.9;
  margin-top: 2px;
}

/* 🔥 hover效果（核心） */
#buynow_button:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

/* 副标题 hover 微变化 */
#buynow_button:hover::after {
  opacity: 1;
}

/* Add to Cart 基础 */
#addtocart_button {
  transition: all 0.2s ease;
}

/* hover效果 */
#addtocart_button:hover {
  background: #e5e7eb; /* 浅灰变深一点 */
  transform: translateY(-1px);
}