.content_head {
    width: 100%;
    height: 575px;
    margin-bottom: 80px;
    position: relative;
}

@media screen and (max-width: 767px) {
    .content_head {
        height: 250px;
        margin-bottom: 40px;
    }
}


/* */

.PFcontainer {
    position: relative;
    margin: 0 auto;
    padding-left: 50px;
    padding-right: 50px;
    max-width: 1100px;
}

@media screen and (max-width: 767px) {
    .PFcontainer {
        padding-left: 15px;
        padding-right: 15px;
    }
}

.history {
    padding: 90px 0 0 0;
}

.history img {
    display: block;
    width: 100%;
}

.history .subhead {
    margin: 25px 0 0 0;
    text-align: center;
    font-size: 32px;
    line-height: 1.5;
    font-family: "Zen Old Mincho", serif;
}

.history .subhead span {
    font-size: 1.65rem;
}

.history .list {
    margin: 40px 0 0 0;
    padding: 10px 40px;
    background-color: #fff;
    border-radius: 15px;
}

.history .list .block {
    display: flex;
    padding: 30px 0;
    border-bottom: 1px solid #d2d2d2;
}

.history .list .block:last-child {
    border-bottom: 0;
}

.history .list .block .year {
    flex-basis: 310px;
}

.history .list .block .year dt {
    font-size: 3.3rem;
    line-height: 1.3;
    font-family: "Poppins", "Zen Kaku Gothic New", sans-serif;
}

.history .list .block .year dt::after {
    content: "";
    display: block;
    margin: 15px 0;
    margin: 10px 0;
    width: 20px;
    width: 105px;
    height: 1px;
    background-color: #000;
}

.history .list .block .year dd {
    font-size: 25px;
    line-height: 1.44;
}

.history .list .block .detail {
    flex: 1;
}

.history .list .block .image {
    margin: 20px 0 0 0;
}

.history .list .block .image ul {
    display: flex;
    margin: 0 -20px 0 0;
    font-size: 12px;
    line-height: 1.6;
}

.history .list .block .detail p {
    font-size: 1.55rem;
    line-height: 1.65;
}

.history .list .block .image ul li {
    margin: 0 20px 0 0;
    list-style: none;
}

.history .list .block .image ul li p {
    margin: 5px 0 0 0;
    font-size: 1.25rem;
    line-height: 1.35;
}

.history .list .block .image01 .b01 {
    width: calc(396px * 0.5);
}

.history .list .block .image01 .b02 {
    width: calc(800px * 0.5);
}

.history .list .block .image02 .b01 {
    width: calc(450px * 0.5);
}

.history .list .block .image02 .b02 {
    width: calc(500px * 0.5);
}

.history .list .block .image03 .b01 {
    width: calc(450px * 0.5);
}

.history .list .block .image03 .b02 {
    width: calc(450px * 0.5);
}

.history .list .block .image04 .b01 {
    width: calc(429px * 0.5);
}

.history .list .block .image04 .b02 {
    width: calc(800px * 0.5);
}

.history .list .block .image05 .b01 {
    width: calc(384px * 0.5);
}

.history .list .block .image05 .b02 {
    width: calc(450px * 0.5);
}

.history .list .block .image06 .b01 {
    width: calc(380px * 0.5);
}

.history .list .block .image07 .b01 {
    width: calc(429px * 0.5);
}

.history .list .block .image07 .b02 {
    width: calc(390px * 0.5);
}

.history .list .block .image08 .b01 {
    width: calc(433px * 0.5);
}

.history .list .block .image09 .b01 {
    width: calc(472px * 0.5);
}

.history .list .block .image10 .b01 {
    width: calc(525px * 0.5);
}

.history .list .block .image10 .b02 {
    width: calc(633px * 0.5);
}

.history .list .block .image11 .b01 {
    width: calc(450px * 0.5);
}

.history .list .block .image12 .b01 {
    width: calc(399px * 0.5);
}

.history .list .block .image12 .b02 {
    width: calc(399px * 0.5);
}

.history .list .block .image12 .b03 {
    width: calc(866px * 0.5);
}

.history .list .block .image12 .b04 {
    width: calc(450px * 0.5);
}

.history .list .block .image13 .b01 {
    width: calc(281px * 0.5);
}

.history .list .block .image14 .b01 {
    width: calc(613px * 0.5);
}

.history .list .block .image14 .b02 {
    width: calc(702px * 0.5);
}

.history .list .block .image15 .b01 {
    width: calc(366px * 0.5);
}

.history .list .block .image16 .b01 {
    width: calc(613px * 0.5);
}


/* Tablet */

@media screen and (max-width: 979px) {
    /* history */
    .history .list .block {
        display: block;
    }
    .history .list .block .year {
        margin: 0 0 10px 0;
    }
    .history .list .block .year dd br {
        display: none;
    }
    .history .subhead span {
        font-size: 1.35rem;
    }
}


/* Smartphone */

@media screen and (max-width: 767px) {
    .history {
        padding: 40px 0 0 0;
    }
    .history .subhead {
        margin: 18px 0 0 0;
        font-size: 2.3rem;
    }
    .history .list {
        margin: 30px 0 0 0;
        padding: 10px 20px;
    }
    .history .list .block .year dd br {
        display: block;
    }
    .history .list .block .image ul {
        display: block;
        margin: 0 0 -15px 0;
    }
    .history .list .block .image ul li {
        margin: 0 0 15px 0;
    }
    .history .list .block .image04 .b02 {
        width: calc(700px * 0.5);
    }
    .history .list .block .image12 .b03 {
        width: calc(666px * 0.5);
    }
    .history .list .block .image14 .b01 {
        width: calc(683px * 0.5);
    }
    .history .list .block .image14 .b02 {
        width: calc(702px * 0.5);
    }
    .history .list .block .image16 .b01 {
        width: calc(677px * 0.5);
    }
}

.cmn-heading h2 {
    text-align: center;
    font-size: 40px;
    line-height: 1.3;
}

.cmn-heading h2::after {
    content: "";
    display: block;
    margin: 20px auto 0 auto;
    width: 150px;
    height: 32px;
    background-image: url("../images/history/pf-line.svg");
    background-size: contain;
    background-repeat: no-repeat;
}

.cmn-heading h2>span {
    display: block;
}

.cmn-heading h2>span>span {
    display: block;
}

@media screen and (max-width: 767px) {
    .cmn-heading h2 {
        font-size: 26px;
    }
    .cmn-heading h2::after {
        margin: 15px auto 0 auto;
        width: 105px;
        height: 22px;
    }
}