/* 言語切り替え機能 */
#usermenu {
    position: fixed;
    bottom: 0.9em;
    left: 0.9em;
    z-index: 100;
}
#usermenu details {
    font-size: 14px !important;
    background: #239e8a;
    color: #fff;
    border-radius: 5px;
    border: 1px solid #fff;
    cursor: pointer;
}
#usermenu details summary {
    list-style: none;
    padding: 0.75em 0.85em 0.75em 0.75em;
}
#usermenu details summary::-webkit-details-marker {
    display: none;
}
#usermenu details summary i {
    font-size: 20px;
    vertical-align: bottom;
    color: #fff;
}
#usermenu details a {
    display: block;
    color: #fff;
}
#usermenu details li {
    display: block;
    padding: 0.75em;
    border-top: 1px solid #fff;
    text-align: right;
}
@media screen and (max-width: 1023px) {
    #usermenu {
        bottom: auto;
        left: auto;
        top: 6px;
        right: 6px;
    }
    #usermenu details {
        font-size: 12px !important;
    }
    #usermenu details summary i {
        font-size: 18px;
    }
    #usermenu details summary {
        padding: 0.75em 0.85em 0.75em 0.75em;
    }
}