.question_btn{
    width:90%;
    margin:0 auto 6rem auto;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
}
.question_btn div{
    width:calc((100% - 5%) / 3);
}
.question_btn div:nth-of-type(n+4){
    margin-top:2rem;
}
.question_btn div a{
    width:100%;
    display: inline-block;
    background-color:#FF77AD;
    color:white;
    padding:1.5rem 0;
    border-radius: 1.25rem;
    text-align: center;
}
.question_btn div a p::before{
    content:"▼";
    margin-right:1rem;
}



/*q&a内容*/

.main h3:not(.contact h3){
    font-size: 2rem;
    padding-bottom:1.75rem;
    margin-bottom:1.75rem;
    color:#FF77AD;
    border-bottom:solid #FF77AD 1px;
    text-align: center;
}

#work,#residue,#purchase,#price,#contact_question{
    margin-top:6rem;
}

.question_wrapper{
    width:90%;
    margin:3rem auto 0 auto;
}

.question_item{
    background-color: white;
    padding:2.5rem 0 ;
    border-radius:1.25rem;
    box-shadow: 0 0 10px 0 rgba(255, 119, 173,.1);
    cursor: pointer;
}
.question_item:nth-of-type(n+2){
    margin-top:2rem;
}
.question_ttl{
    width:90%;
    margin:0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.question_ttl h4{
    color:#FF77AD;
    width:calc(100% - 2.5rem);
}
.q_a_btn{
    width:1.75rem;
    position: relative;
}
.q_a_btn span{
    display: inline-block;
    width:100%;
    height:.2rem;
    background-color: #FF77AD;
    position: absolute;
    top:50%;
    left:50%;
    transform: translateX(-50%);
    transition: .5s;
}
.q_a_btn span:last-of-type{
    transform: translateX(-50%) rotate(90deg);
}
.q_a_btn span.open:last-of-type{
    transform: rotate(0deg);
    top:50%;
    left:50%;
    transform: translate(-50%,-50%);
    opacity: 0;
}
.question_item .answer{
    width:90%;
    margin:1.5rem auto 0 auto;
    display: none;
}
.question_item.open .answer{
    display: block;
}








/*----------------------------------------------------------------------
レスポンシブ
------------------------------------------------------------------------*/
/*------------------------------------------
1024px以下
--------------------------------------------*/
@media(max-width:1024px){
    .question_btn{
        width:100%;
    }
}



/*------------------------------------------
600px以下
--------------------------------------------*/
@media(max-width:600px){
    .question_btn div{
        width:calc((100% - 5%) / 2);
    }
    .question_btn div:nth-of-type(n+3){
        margin-top:2rem;
    }
}

/*------------------------------------------
425px以下
--------------------------------------------*/
@media(max-width:425px){
    .question_btn div{
        width:calc((100% - 3%) / 2);
    }
    .question_btn div a p::before{
        margin-right:.5rem;
    }
}


/*------------------------------------------
375px以下
--------------------------------------------*/
@media(max-width:375px){
    .question_btn div{
        font-size: 1.25rem;
    }
}