.container{
  height: 100vh;
  margin-top: 172rpx;
  background: #FAFAFA;
}
.title{
  font-size: 40rpx;
  width: 160rpx;
  height: 50rpx;
  position:absolute;
  left: calc(50vw - 80rpx);
  top: calc(50vh - 160rpx);
  transform: rotate(90deg);
}
.btn_group{
  transform: rotate(90deg);
  width: 500rpx;
  position: absolute;
  left: calc(-215rpx + 50rpx);/* 和按钮的高度有关 (width/2 - 按钮高度/2) */
  bottom: calc(215rpx + 100rpx);/* 和按钮的高度有关 (width/2 - 按钮高度/2) */
  display: flex;
  justify-content: space-between;
}