.container{
  background-color: #fff;
}

.panelTitle{
  width:100%;
  justify-content: space-between;
  background-color: #f0f0f0;
}

.panelTitle .panelTitle1{
  font-size:24rpx;
  font-weight: 400;
  margin-left: 30rpx;
  margin-bottom: 30rpx;
  margin-top: 50rpx;
}

.panelItem0{
  width:100%;
}

.panelItem{
  width:720rpx;
  margin-top:30rpx; 
  font-size:28rpx;
  justify-content: flex-start;
  background-color: #fff;
  flex-wrap: wrap;
  padding-bottom: 20rpx;
}

.panelItem1{
  width:720rpx;
  margin-top:30rpx; 
  font-size:28rpx;
  justify-content: flex-start;
  background-color: #fff;
  flex-wrap: wrap;
}

.btn {
  width: 80rpx;
  height:80rpx;
  background-color: #fff;
  border: 2rpx solid #D2D2D2;
  color: #787878;
  border-radius: 10rpx;
  text-align: center;
  line-height: 80rpx;
  margin: 8rpx;
  font-size: 36rpx;
  font-weight: 700;
}

.btn1 {
  border: 2rpx solid #fff;
}

.btn2 {
  border: 2rpx solid #0071EF;
  background-color: #0071EF;
  color:#fff;
}

.btnClear {
  border: 2rpx solid #fff;
  width: 80rpx;
  height:80rpx;
  color:#fff;
}

.btnCopy {
  position: absolute;
  z-index: 10;
}

.help_picture_mathsymbol{
  width:688rpx;
  height:347rpx;
  margin: 40rpx 0;
}

.panelTitle0{
  background-color: #fff;
  border-top:20rpx solid #f0f0f0;
}

.text1 {
  font-size:24rpx;
  width:690rpx;
  font-weight: 400;
}