@charset "UTF-8";
#container{
    overflow-x: hidden;
}
/*タイトル背景画像*/
@media (max-width: 767px) {
    .container_basic .history1962{
        background-image: url(../images/history_bg1962_sp.png);
        background-position: bottom;
    }
    .container_basic .history1970{
        background-image: url(../images/history_bg1970_sp.png);
    }
    .container_basic .history1980{
        background-image: url(../images/history_bg1980_sp.png);
        background-position: bottom;
    }
    .container_basic .history1990{
        background-image: url(../images/history_bg1990_sp.png);
        background-position: bottom;
    }
    .container_basic .history2000{
        background-image: url(../images/history_bg2000_sp.png);
        background-position: bottom;
    }
    .container_basic .history2010{
        background-image: url(../images/history_bg2010_sp.png);
    }
	.container_basic .history2020{
        background-image: url(../images/history_bg2020_sp.png);
    }
}
@media (min-width: 768px) {
    .container_basic .history1962{
        background-image: url(../images/history_bg1962.png);
        background-position: right;
    }
    .container_basic .history1970{
        background-image: url(../images/history_bg1970.png);
        background-position: center;
    }
    .container_basic .history1980{
        background-image: url(../images/history_bg1980.png);
    }
    .container_basic .history1990{
        background-image: url(../images/history_bg1990.png);
        background-position: center -35px;
    }
    .container_basic .history2000{
        background-image: url(../images/history_bg2000.png);
        background-position: center;
    }
    .container_basic .history2010{
        background-image: url(../images/history_bg2010.png);
        background-position: center;
    }
	.container_basic .history2020{
        background-image: url(../images/history_bg2020.png);
        background-position: center;
    }
}

/*年代*/
.page-list{
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    font-size: 1.7rem;
    letter-spacing: 0.01em;
    padding: 0;
    margin: 0 0 70px;
}
.page-list li{
    cursor: pointer;
    transition: 0.4s ease-in;
    padding: 0 8.5px;
}
.page-list li:hover,
.page-list li.active{
    font-size: 4.8rem;
    letter-spacing: 0.01em;
}
.page-list li.active{
    padding: 0;
}
.page-list li.active:not(:first-child)::before{
    display: inline-block;
    content: "";
    width: 75px;
    height: 1px;
    background: #000;
    margin: 10px;
    vertical-align: sub;
}
.page-list li.active::after{
    display: inline-block;
    content: "";
    width: 75px;
    height: 1px;
    background: #000;
    margin: 10px;
    vertical-align: sub;
}
.page-list li.active:last-child::after{
    display: none;
}
.page-list li a{
    text-decoration: none;
    transition: none;
}

/*コンテンツ*/
.contents_wrap .inner{
    padding: 0 6.78%;
}
.item{
    margin-bottom: 100px;
    flex-wrap: wrap;
    align-items: start;
}
.item-title{
    width: 100%;
    font-size: 1.5rem;
    letter-spacing: 0.01em;
}
.item .swiper-container,
.item .img_wrap{
    width: 275px;
    margin: 1em 0;
}
.item .swiper-slide{
    width: 275px;
}
/*右側テキスト*/
.item .text_box{
    max-width: 700px;
    box-sizing: border-box;
    letter-spacing: 0.02em;
    line-height: 2;
}
.item .text_box h3{
    font-size: 1.6rem;
    font-weight: normal;
}
.item .text_box .fnt12{
    font-size: 1.2rem;
}
.item .text_box .fnt11{
    font-size: 1.1rem;
}

.swiper-button-next, .swiper-button-prev{
    top: 100px;
    outline: none;
}
.swiper-button-next:hover, .swiper-button-prev:hover{
    opacity: 0.6;
}
.swiper-button-next{
    background: none;
    width: 13px;
    height: 13px;
    border-bottom: 1px solid #0083D5;
    border-right: 1px solid #0083D5;
    transform: rotate(-45deg) translateY(-50%);
    right: 5px;
}
.swiper-button-next::before{
    content: "next";
    display: block;
    transform: rotate(45deg);
    font-size: 9px;
    color: #0083D5;
    letter-spacing: 0.02em;
    position: absolute;
    left: 13px;
    bottom: 13px;
	font-family: "Helvetica Neue",Arial,"Hiragino Kaku Gothic ProN","Hiragino Sans",Meiryo,sans-serif;
}
.swiper-button-prev{
    background: none;
    width: 13px;
    height: 13px;
    border-top: 1px solid #0083D5;
    border-left: 1px solid #0083D5;
    transform: rotate(-45deg) translateY(-50%);
    left: 15px;
}
.swiper-button-prev::before{
    content: "prev";
    display: block;
    transform: rotate(45deg);
    font-size: 9px;
    color: #0083D5;
    letter-spacing: 0.02em;
    position: absolute;
    left: 9px;
    bottom: 18px;
	font-family: "Helvetica Neue",Arial,"Hiragino Kaku Gothic ProN","Hiragino Sans",Meiryo,sans-serif;
}
.swiper-button-next.swiper-button-disabled,
.swiper-button-prev.swiper-button-disabled{
    opacity: 0;
}

.img_box{
    padding: 0 30px;
    margin: 0 auto;
}
.img_box > img{
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.caption{
    font-size: 0.9rem;
    letter-spacing: 0.02em;
    text-align: center;
    line-height: 1.5;
}

/*SP*/
@media (max-width: 767px) {
    .container_basic > div{
        padding: 0;
    }
    .page-list{
        display: none;
    }
    .sp_white{
        color: #FFF;
    }
    .sp_black{
        color: #000;
    }
    .timeline{
        position: absolute;
        bottom: 15px;
        width: 100%;
        display: inline-flex;
        justify-content: center;
    }
    .timeline .now,
    .timeline .prev,
    .timeline .next{
        color: #FFF;
    }
    .timeline.sp_black .now,
    .timeline.sp_black .prev,
    .timeline.sp_black .next{
        color: #000;
    }
    .timeline .now{
        display: block;
        text-align: center;
        font-size: 3.3rem;
        letter-spacing: 0.01em;
    }
    .timeline .arrow{
        position: relative;
        display: inline-block;
        padding: 0 10px;
        vertical-align: middle;
        text-decoration: none;
        width: 90px;
        box-sizing: border-box;
    }
    .timeline .arrow::before,
    .timeline .arrow::after{
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        margin: auto;
        content: "";
        vertical-align: middle;
    }
    .timeline .arrow.none{
        opacity: 0!important;
    }
    /*左矢印*/
    .timeline .leftArrow::before{
        right: 3px;
        width: 100%;
        height: 1px;
        background: #FFF;
    }
    .timeline .leftArrow::after{
        right: calc(100% - 8px);
        width: 8px;
        height: 8px;
        border-bottom: 1px solid #FFF;
        border-left: 1px solid #FFF;
        -webkit-transform: rotate(45deg);
        transform: rotate(45deg);
    }
    /*右矢印*/
    .timeline .rightArrow::before{
        left: 3px;
        width: 100%;
        height: 1px;
        background: #FFF;
    }
    .timeline .rightArrow::after{
        left: calc(100% - 8px);
        width: 8px;
        height: 8px;
        border-top: 1px solid #FFF;
        border-right: 1px solid #FFF;
        -webkit-transform: rotate(45deg);
        transform: rotate(45deg);
    }
    .timeline.sp_black .leftArrow::before,
    .timeline.sp_black .rightArrow::before{
        background: #000;
    }
    .timeline.sp_black .rightArrow::after,
    .timeline.sp_black .leftArrow::after{
        border-color: #000;
    }
    .timeline .next{
        position: absolute;
        right: 10px;
        top: 50%;
        transform: translateY(-50%);
    }
    .timeline .prev{
        position: absolute;
        left: 10px;
        top: 50%;
        transform: translateY(-50%);
    }
    .container_basic .title_wrap .title{
        bottom: 60px;
    }
    .contents_wrap .inner{
        padding: 0;
    }
    .item{
        padding: 18px 0;
        margin: 0;
        border-bottom: 1px solid #BFBFBF;
    }
    .item:first-of-type{
        border-top: 1px solid #BFBFBF;
    }
    .item:last-of-type{
        border-bottom: none;
    }
    .item-title{
        margin: 0;
        text-align: center;
        cursor: pointer;
        position: relative;
    }
    .item-title::after{
        content: "";
        position: absolute;
        transition: all 0.2s ease-in-out;
        display: block;
        width: 7px;
        height: 7px;
        border-top: solid 2px #505659;
        border-right: solid 2px #505659;
        -webkit-transform: rotate(135deg);
        transform: rotate(135deg);
        top: 5px;
        right: 30px;
    }
    .item-title.open::after{
        -webkit-transform: rotate(-45deg);
        transform: rotate(-45deg);
    }
    .item, .acsp{
        flex-direction: column;
    }
    .item .swiper-container,
    .item .img_wrap{
        margin-left: auto;
        margin-right: auto;
    }
    .item .text_box{
        width: 90%;
        margin: 0 auto;
    }
    
    /*アコーディオン*/
    .acsp{
        display: none;
    }
    .img_box {
        padding: 0 30px;
        margin: 0 auto;
        width: 100%;
        box-sizing: border-box;
    }
}
@media (max-width: 320px) {
    .timeline .arrow{
        width: 65px;
    }
}
@media (min-width: 768px) {
    .timeline{
        display: none;
    }
    .item .text_box{
        width: calc(100% - 335px);
        padding-left: 5%;
    }
    /*accordion無効化*/
    .item-title{
        pointer-events: none;
    }
}