@charset "utf-8";
.history_information_list dl {
    display: flex;
    border-bottom: 1px solid #707070;
    padding: 20px 0;
}

.history_information_list dt {
    width: 160px;
    padding: 10px 0 10px 22px;
    background-color: #BABABA;
    font-weight: 500;
    font-size: 20px;
    color: #fff;
    margin-right: 36px;
    position: relative;
}
.history_information_list dt::before{
    content: "";
    width: 25px;
    border-style: solid;
    border-width: 22px 0 22px 27px;
    border-color: transparent transparent transparent #fff;
    position: absolute;
    bottom: -46px;
    left: 0;
    right: 0;
    margin: auto;
    transform: rotateZ(90deg);
}
.history_information_list dt::after{
    content: "";
    width: 25px;
    border-style: solid;
    border-width: 20px 0 20px 25px;
    border-color: transparent transparent transparent #E3E2E2;
    position: absolute;
    bottom: -43px;
    left: 0;
    right: 0;
    margin: auto;
    transform: rotateZ(90deg);
}
.history_information_list dl:last-child dt::before{
    content: none;
}
.history_information_list dl:last-child dt::after{
    content: none;
}
.history_information_list dd {
    width: calc(100% - 219px);
    padding: 10px 0;
    font-size: 18px;
    line-height: 185%;
}
.history_information_anno {
    text-align: center;
    margin-top: 20px;
}
.anno {
    font-size: 12px;
    vertical-align: top;
    position: relative;
    top: 0.4em;
}
.lead_block {
    margin-bottom: 84px;
}

@media screen and (max-width: 767px) {
    main {
        margin-bottom: 50px;
    }
    h3 {
        margin-bottom: 15px;
    }
    .history_information_list dl {
        position: relative;
    }
    .history_information_list dt {
        width: 24%;
        margin-right: 16px;
        font-size: 16px;
        padding: 5px 0 5px 10px;
        line-height: 130%;
    }
    .history_information_list dd {
        width: calc(100% - 24%);
        font-size: 14px;
        position: relative;
        top: 0;
        bottom: 0;
        margin: auto;
        line-height: 150%;
        padding: 0;
    }
    .history_information_list dt::before {
        border-width: 18px 0 18px 23px;
        bottom: -43px;
    }
    .history_information_list dt::after {
        border-width: 12px 0 12px 15px;
        bottom: -40px;
    }
    .history_information_anno {
        text-align: left;
    }
    .anno {
        font-size: 10px;
        top: 0.1em;
    }
    .lead_block {
        margin-bottom: 40px;
    }
}