/* #region ======= 対応エリア アコーディオン ======= */
.area_chart {
    margin-bottom: 15px;
    border: none;
    border-radius: 5px;
    text-align: center;
    background-color: #D6220B;
}

.area_chart summary {
    width: 30%;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    padding: 1em 2em;
    color: #ffffff;
    font-weight: bold;
    cursor: pointer;
}

.area_chart summary::after {
    transform: translateY(-25%) rotate(45deg);
    width: 7px;
    height: 7px;
    margin-left: 10px;
    border-bottom: 3px solid #ffffff;
    border-right: 3px solid #ffffff;
    content: '';
    transition: transform .5s;
}

.area_chart[open] summary::after {
    transform: rotate(225deg);
}

.area_chart p {
    padding: 10px;
    color: #000000;
    background-color: #ffffff;
    text-align: justify;
    line-height: 1.3em;
    border: 10px solid #D6220B;
    line-height: 1.8;
}

.area_chart[open] p {
    transform: none;
    opacity: 1;
    border-radius: 0 0 5px 5px;
    background-color: #ffffff;
}

/* Chrome、Safariで矢印を消す */
.area_chart summary::-webkit-details-marker {
    display: none;
}
/* #endregion */

/* #region =======  ======= */

/* #endregion */