.p-qa__column>h2:after{
    display: none;
}

.flex__column {
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    align-items: flex-start;
}
@media (max-width: 768px) {
    .flex__column {
        display: block;
    }
}
.l_2column{
    align-items: stretch;
}
.l_2column li{
    width: calc((100% - 20px) / 2);
}
.l_2column li:nth-child(2n){
    margin-left: 20px;
}

.comment{
    border-top: dotted 1px #ddd;
    padding-top: 10px;
    margin-top: 10px;
    font-size: 90%;
}

.talk{
    border-top: dotted 1px #ddd;
    padding-top: 20px;
    margin-top: 40px;
}

.talk h4{
    color: #f66221;
}

.l_3column{
    justify-content: flex-start;
    -webkit-box-align: stretch;
	-ms-flex-align: stretch;
	align-items: stretch;
}
.l_3column li{
  width : 33.33333% ; 
  width : -webkit-calc((100% - 20px) / 3) ;
  width : calc((100% - 20px) / 3) ;
  margin-left: 10px;
}
.l_3column li:nth-child(3n+1){
    margin-left: 0;
}
@media (max-width: 768px) {
    .l_3column li{
        width: 100%;
    }
}

.voiceArea li{
    padding: 10px;
    border-radius: 10px;
    border: solid 2px #ddd;
    margin-bottom: 15px;
}

.workArea_item ul{
    padding: 20px;
    border-radius: 10px;
    border: solid 2px #ddd;
    margin-bottom: 20px;
}
@media (max-width: 768px) {
    .workArea_item li:not(:last-child){
        margin-bottom: 20px;
    }
    .l_3column li{
        margin-left: 0px;
      }
    .flex{
        display: block;
    }
    .flex div{
        margin-top: 20px;
    }
    .l_2column li{
        width: 100%;
    }
    .l_2column li:nth-child(2n){
        margin-left: 0;
    }
    .comment{
        padding-left: 2em;
    }
}