.FQA{
    margin-top: 20px;
}
.FQA>span{
    display: block;
    width: 100%;
    background-color: #4A5A72;
    color: #ffffff;
    font-weight: bold;
    font-size: 5vw;
    padding: 1vw 3vw;
}
.FQA>dl>dt,
.FQA>dl>dd{
    padding: 1.5vw 5vw 1.5vw 2vw;
    font-weight: bold;
    font-size: 3.2vw;
    margin: 0;
}
.FQA>dl>dt{
    background-color: #D6EFFF;
    position: relative;
}
.FQA>dl>dt::after{
    content: "+";
    position: absolute;
    top: 50%;
    right: 1.5vw;
    transform: translateY(-50%);
}
.FQA>dl>dt.on::after{
    content: "-";
}
.FQA>dl>dd{
    display: none;
}
.FQA>dl>dt.on+dd{
    display: block;
}

@media screen and (min-width: 768px) {
    .FQA{
        margin-top: 15px;
    }
    .FQA>span{
        font-size: 22px;
        padding: 5px 15px;
    }
    .FQA>dl>dt,
    .FQA>dl>dd{
        font-size: 16px;
        padding: 3px 25px 3px 15px;
    }
    .FQA>dl>dt{
        cursor: pointer;
    }
    .FQA>dl>dt::after{
        right: 8px;
    }
}