.main{
  width: 100%;
  height: 16rem;
  background: url('../img/index.jpg');
  background-size: 100% 100%;
}

.button-container {
  position: absolute;
  bottom: 12%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.cta-button {
  background: transparent;
  background-image: url("../img/button.png");
  background-size: contain; /* 改为 contain 以确保背景图完全适应按钮 */
  background-repeat: no-repeat;
  background-position: center;
  width: 300px; /* 调整为实际按钮图片的宽度 */
  height: 120px; /* 调整为实际按钮图片的高度 */
  border: none;
  cursor: pointer;
  font-size: 0; /* 隐藏文字 */
}

@keyframes flash {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(.9);
  }
  100% {
    transform: scale(1);
  }
}