page {
  width: 100%;
  height: 100vh;
}
.topic-detail {
  width: 100%;
  min-height: 101%;
  background: #f7f7f7;
  box-sizing: border-box;
  padding: 20rpx;
  -webkit-overflow-scrolling: touch;
}

.topic-detail .bottom-operation {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 110rpx;
  background: #fff;
  display: flex;
  align-items: center;
  box-sizing: border-box;
  padding: 0 20rpx;
}
.bottom-operation .altitude-input {
  width: 330rpx;
  height: 66rpx;
  border-radius: 8rpx;
  background: #f2f2f2;
  display: flex;
  align-items: center;
}
.bottom-operation .placeholder-input {
  font-size: 28rpx;
  color: #a8a8a8;
  line-height:66rpx;
}
.bottom-operation .altitude-input image {
  width: 30rpx;
  height: 30rpx;
  object-fit: cover;
  margin: 0 10rpx 0 24rpx;
}
.bottom-operation .altitude-input input {
  width: 100%;
  height: 66rpx;
}
.bottom-operation .close-topic {
  width: 180rpx;
  height: 66rpx;
  line-height: 66rpx;
  text-align:center;
  font-size: 32rpx;
  background: linear-gradient(to right, #ffad00, #ffbf00);
  color: #fff;
  border-radius: 8rpx;
  border: 0;
  padding: 0;
  margin: 0 10rpx;
}
.bottom-operation .hover-close {
  background: orange;
}
.bottom-operation .change-issue {
  width: 180rpx;
  height: 66rpx;
  line-height: 66rpx;
  text-align:center;
  font-size: 32rpx;
  background: linear-gradient(to right, #fd1f13, #ff634a);
  color: #fff;
  border-radius: 8rpx;
  border: 0;
  padding: 0;
  margin: 0;
}
.bottom-operation .hover-change {
  background: red;
}