/* 沿革 */
.history-list {
    list-style: none;
    max-width: 944px;
    margin: 0 auto 200px;
}

.history-list-item {
    display: flex;
    line-height: 1.75;
    letter-spacing: 0.1em;
    font-size: 16px;
}

.history-list-date {
    width: 6.5em;
    color: #214267;
    font-weight: 500;
}

.history-list-text {
    flex: 1;
    text-align: left;
    margin-bottom: 3em;
    color: #000;
}

.history-list-marker {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 60px;
}

.history-list-marker::before {
    content: '';
    width: 1px;
    height: 100%;
    background: #8fa0b2;
    display: block;
    position: absolute;
}

.history-list-item:first-of-type .history-list-marker::before {
    top: 14px;
}

.history-list-item:last-of-type .history-list-marker::before {
    background: none;
    border-left: 3px dotted #c1cad4;
    width: 0px;
}

.history-list-marker::after {
    content: '';
    width: 7px;
    height: 7px;
    background: #8fa0b2;
    display: block;
    position: absolute;
    top: 11px;
    border-radius: 50%;
}

@media (max-width:768px) {
    .history-list {
        margin-bottom: 50px;
    }

    .history-list-item {
        font-size: 14px;
    }

    .history-list-text {
        margin-bottom: 1em;
    }

    .history-list-marker {
        width: 30px;
    }

    .history-list-marker::before {
        background: #bbc6d0;
    }

    .history-list-item:last-of-type .history-list-marker::before {
        border-left: 3px dotted #c7cfd8;
    }

    .history-list-marker::after {
        top: 9px;
        background: #214267;
    }
}