.activity__container{
  position: relative;
  height: 100vh;
  background: #F2F6F9;
}
.activity__header{
  height: 210rpx;
  background: #1F80F4;
  padding: 10rpx 100rpx;
  border-bottom-left-radius: 15%;
  border-bottom-right-radius: 15%;
}
.header__title{
  font-size: 38rpx;
  color: #FFFFFF;
  margin-bottom: 20rpx;
}
.header__tips{
  font-size: 28rpx;
  color: #CAE5FF;
}

.activity__back{
  width: calc(100% - 140rpx);
  height: 100rpx;
  background: #CBE5FF;
  border-radius: 20rpx;
  position: absolute;
  left: 50%;
  top: 140rpx;
  transform: translate(-50%,0);
}

.activity__content{
  position: absolute;
  left: 50%;
  top: 160rpx;
  transform: translate(-50%,0);
  width: calc(100% - 60rpx);
  height: calc(100vh - 320rpx);
  padding: 70rpx 30rpx;
  background:  #FFFFFF;
  border: 1rpx solid #E4F0FE;
  border-radius: 20rpx;
  box-shadow: 0rpx 4rpx 29rpx 0rpx rgba(32,123,242,0.08);
}

.content__item{
  margin-bottom: 50rpx;
}

.item__label{
  font-size: 32rpx;
  color: #333333;
  display: flex;
  align-items: center;
  margin-bottom: 30rpx;
}
.item__label::before{
  content: "";
  width: 10rpx;
  height: 40rpx;
  display: inline-block;
  background: #1F80F4;
  margin-right: 24rpx;
}

.item__input{
  border-bottom: 1px solid #F2F2F2;
  font-size: 32rpx;
  padding: 10rpx 40rpx;
}

.activity__button{
  position: absolute;
  left: 30rpx;
  bottom: 30rpx;
  width: calc(100% - 60rpx);
  line-height: 90rpx;
  text-align: center;
  color: #FFFFFF;
  background: #3275E9;
  border-radius: 40rpx;
}