.faq-section {
    margin-bottom: 4rem;
    padding: 16px;
}

.faq-category {
    margin: 0;
    padding: 0;
    font-size: 1.5rem;
    font-weight: bold;
    margin-top: 2rem;
    margin-bottom: 1rem;
    text-align: left;
}

.qa-list dl {
    position: relative;
    padding: 15px 40px 15px 10px;
    margin: 0;
    cursor: pointer;
    border-bottom: 2px solid #EEEEEE;
}

.qa-list dl:first-child {
    border-top: 2px solid #EEEEEE;
}

.qa-list dl::before {
    content: '';
    position: absolute;
    top: 20px;
    right: 20px;
    width: 7px;
    height: 7px;
    border-top: 2px solid #000;
    border-right: 2px solid #000;
    transform: rotate(135deg);
    transition: transform 0.3s ease;
}

.qa-list .open::before {
    transform: rotate(-45deg);
}

.qa-list dl dt {
    position: relative;
    margin: 0;
    padding: 0 0 0 30px;
    font-size: 14px;
    font-weight: 400;
}

.qa-list dl dt::before {
    content: 'Q.';
    position: absolute;
    top: 3px;
    left: 5px;
    font-size: 14px;
    line-height: 1;
}

.qa-list dl dd {
    position: relative;
    display: none;
    margin: 10px 0 0;
    padding: 0 0 0 30px;
    font-size: 14px;
    font-weight: 400;
}

.qa-list dl dd::before {
    content: 'A.';
    position: absolute;
    top: 5px;
    left: 5px;
    font-size: 14px;
    line-height: 1;
}

.qa-list dl dd p {
    margin: 30px 0 0;
    font-size: 14px;
    text-align: left;
}

.qa-list dl dd p:first-child {
    margin-top: 0;
}

/* ------------------------------
   PC / タブレットスタイル (768px～)
------------------------------- */
@media screen and (min-width: 768px) {
    main {
        max-width: 80%;
    }

    .faq-section {
        margin-bottom: 8rem;
    }

    .qa-list dl {
        padding: 14px 30px 14px 10px;
    }

    .qa-list dl::before {
        top: 23px;
        right: 35px;
    }

    .qa-list dl dt {
        padding-left: 50px;
        font-size: 1.3rem;
    }

    .qa-list dl dt::before {
        font-size: 1.3rem;
        left: 0;
    }

    .qa-list dl dd {
        margin-top: 20px;
        padding-left: 50px;
        font-size: 1.1rem;
    }

    .qa-list dl dd::before {
        font-size: 1.3rem;
        top: 3px;
        left: 2px;
    }

    .qa-list dl dd p {
        font-size: 1.1rem;
    }
}