@charset "utf-8";
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@300;400&display=swap');
@import url(reset.css);

/* splash */
/* -------------------------------------------------------- */

#splash {
    position: fixed;
    top: 0;
    width: 100%;
    height: 100vh;
    z-index: 60;
    background: #ffffff;
    text-align: center;
}

#splash_logo {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* container */
/* -------------------------------------------------------- */

#container {
    position: relative;
    max-width: 2000px;
    width: 100%;
    height: 100%;
    overflow: hidden;
    margin-left: auto;
    margin-right: auto;
}


/* header */
/* -------------------------------------------------------- */

#header {
    position: absolute;
    top: 0;
    left: 50%;
    z-index: 10;
    transform: translateX(-50%);
}

#header .header_container .navi .nav_area .nav_item a {
    color: #ffffff;
}

#header .header_container .navi .nav_area .nav_item a .nav_text::before,
#header .header_container .navi .nav_area .nav_item a .nav_text::after {
    background-color: #ffffff;
}

/* mainvisual */
/* -------------------------------------------------------- */

#mainvisual {
    position: relative;
    width: 100%;
    height: 100vh;
    padding: 0;
    border-top: unset;
    border-bottom: unset;
    overflow: hidden;
}

#mainvisual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#mainvisual .main_sp{
    display: none;
}

#mainvisual .mainvisual_text_item {
    max-width: 630px;
    position: absolute;
    bottom: 200px;
    top: 200px;
    right: 20px;
    left: 35%;
    margin: auto auto;
    text-align: left;
    color: #ffffff;
    display: flex;
    flex-flow: column nowrap;
    justify-content: center;
    letter-spacing: 1.5em;
}

#mainvisual .mainvisual_text_item .mainvisual_title {
    font-size: 2em;
    padding: 6px;
    border-bottom: 1px solid #ffffff;
}

#mainvisual .mainvisual_text_item .mainvisual_sub-area .mainvisual_text {
    font-weight: 700;
    font-size: 1.2em;
    padding-top: 19px;
}

#mainvisual .scroll_btn {
    width: 45px;
    height: 45px;
    position: absolute;
    bottom: 20px;
    left: 50%;
    border-bottom: 3px solid #ffffff;
    border-right: 3px solid #ffffff;
    transform: translateX(-50%) rotateZ(45deg);
}


/* main */
/* -------------------------------------------------------- */

#main .check_area {
    width: 100%;
    height: 100%;
    margin-bottom: 62px;
    text-align: left;
}

#main .check_area .check_list .check_item {
    width: 100%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

#main .check_area .check_list .check_item .check_text {
    margin-left: 22px;
    font-size: 1.3em;
    color: #004098;
    cursor: pointer;
}

input[type="checkbox"] {
    display: none;
}

#main .check_area .check_list .check_item>label {
    position: relative;
}

#main .check_area .check_list .check_item>label::before {
    position: absolute;
    top: 50%;
    left: -22px;
    display: inline-block;
    content: '';
    width: 15px;
    height: 15px;
    background-color: #ffffff;
    border: 1px solid #004098;
    transform: translateY(-50%);
    z-index: 10;
}

#main .check_area .check_list .check_item>label::after {
    border-right: 3px solid #004098;
    border-bottom: 3px solid #004098;
    content: '';
    display: block;
    height: 9px;
    left: -18px;
    opacity: 0;
    position: absolute;
    top: 50%;
    transform: translateY(-63%) rotate(45deg);
    width: 5px;
    z-index: 20;
}

#main .check_area .check_list .check_item input[type=checkbox]:checked+label::after {
    opacity: 1;
}

#main .speech_balloon {
    position: relative;
    width: 100%;
    height: 100%;
    margin-bottom: 34px;
}

#main .speech_balloon img.ballon {
    width: 100%;
}

#main .speech_balloon img.ballon_sp {
    display: none;
}

#main .speech_balloon .speech_balloon-text {
    width: 100%;
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -70%);
    color: #ffffff;
    font-size: 1.5em;
}

#main .concept_top {
    background-color: #f0f3f4;
    padding: 37px 0 19px;
    margin-bottom: 40px;
}

#main .concept_top .concept_title {
    color: #9e2428;
    font-size: 1.5em;
    margin-bottom: 20px;
}

#main .concept_top .concept_sub-title {
    color: #004098;
    font-size: 1.3em;
    margin-top: 17px;
}

#main .concept_top .concept_text {
    width: 632.6875px;
    margin: 0 auto;
}

#main .concept_works {
    margin: 90px 0 105px;
}

#main .concept_works .grid_area {
    display: grid;
    justify-items: center;
    align-items: center;
    gap: 30px;
    grid-template-columns: repeat(3, 1fr);
}

#main .concept_works .grid_area .grid_item {
    position: relative;
    width: 312.5px;
    height: 250px;
    object-fit: cover;
}

#main .concept_works .grid_area .grid_item .work_title {
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    font-size: 1.625em;
    opacity: 1;
    transition: all .5s;
    color: #ffffff;
    z-index: 20;
}

#main .concept_works .grid_area .grid_item img {
    width: 100%;
    height: 100%;
    opacity: 1;
    transition: all .5s;
}

#main .concept_works .grid_area .grid_item .mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    opacity: 0.3;
    transition: all .5s;
}

#main .concept_works .grid_area .grid_item:nth-of-type(1)>.mask {
    background-color: #004098;
}

#main .concept_works .grid_area .grid_item:nth-of-type(2)>.mask {
    background-color: #490096;
}

#main .concept_works .grid_area .grid_item:nth-of-type(3)>.mask {
    background-color: #960096;
}

#main .concept_works .grid_area .grid_item:nth-of-type(4)>.mask {
    background-color: #96001D;
}

#main .concept_works .grid_area .grid_item:nth-of-type(5)>.mask {
    background-color: #960000;
}

#main .concept_works .grid_area .grid_item:nth-of-type(6)>.mask {
    background-color: #966800;
}

#main .concept_works .grid_area .grid_item:nth-of-type(7)>.mask {
    background-color: #769600;
}

#main .concept_works .grid_area .grid_item:nth-of-type(8)>.mask {
    background-color: #009600;
}

#main .concept_works .grid_area .grid_item:nth-of-type(9)>.mask {
    background-color: #009680;
}

#main .concept_works .grid_area .grid_item .triangle {
    position: absolute;
    top: -1px;
    left: -1px;
    width: 100px;
    height: 80px;
    background-color: #ffffff;
    clip-path: polygon(0% 0%, 100% 0%, 0% 100%);
    z-index: 40;
    opacity: 1;
}

#main .concept_works .grid_area .grid_item a {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 30;
}

#main .concept_works .grid_area .grid_item .back_text_work {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    width: 100%;
    z-index: -10;
}

#main .concept_works .grid_area .grid_item .back_text_work .back_title {
    font-size: 1.625em;
    margin-bottom: 8px;
}

#main .concept_works .grid_area .grid_item .back_text_work .back_text {
    line-height: 1.3em;
}

#main .concept_works .grid_area .grid_item a:hover+img {
    opacity: 0;
}

#main .concept_works .grid_area .grid_item a:hover~.mask {
    opacity: 0;
}

#main .concept_works .grid_area .grid_item a:hover~.work_title {
    opacity: 0;
}

#main .concept_works .grid_area .grid_item a:hover~.triangle {
    opacity: 0;
    transition: all 1s 0.5s;
}

#main .colum_box {
    width: 100%;
    margin-bottom: 80px;
}

#main .colum_box .colum_title {
    font-size: 1.8225em;
    padding-bottom: 5px;
    border-bottom: 1px solid #000000;
    margin-bottom: 40px;
}

#main .colum_box .colum_container {
    width: 100%;
}

#main .colum_box .colum_container .colum_list {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
}

#main .colum_box .colum_container .colum_list .colum_content {
    width: calc(300px - 68px - 2px);
    border: 1px solid #000000;
    text-align: left;
    padding: 26px 34px;
    line-height: 0.021em;
}

#main .colum_box .colum_container .colum_list .colum_content img {
    max-width: none;
    width: calc(230px - 2px);
    height: calc(160px - 2px);
    margin-bottom: 20px;
    border: 1px solid #000000;
}

#main .colum_box .colum_container .colum_list .colum_content .top_text {
    margin-bottom: 12px;
    line-height: 1.3125em;
}

#main .colum_box .colum_container .colum_list .colum_content .bottom_text {
    line-height: 1.3125em;
}

#main .concept_zooms {
    background-color: #f0f3f4;
    padding: 38px 0 27px;
}

#main .concept_zooms .zoom_top {
    margin-bottom: 36px;
    width: 90%;
    margin-left: auto;
    margin-right: auto;
}

#main .concept_zooms .zoom_top .concept_zoom_top_title {
    font-size: 1.5em;
    color: #9e2428;
    border-bottom: 2px dashed #9e2428;
}

#main .concept_zooms .zoom_top .flex {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 0 12px;
    padding-top: 30px;
}

#main .concept_zooms .zoom_top .flex .zoom_left {
    position: relative;
    width: 338.6314px;
    text-align: left;
}

#main .concept_zooms .zoom_top .flex .zoom_left>img {
    width: 240.944px;
}

#main .concept_zooms .zoom_top .flex .zoom_left .abs {
    display: block;
    width: 114.82px;
    position: absolute;
    top: 0;
    right: 20px;
    transform: rotateZ(50deg);
}

#main .concept_zooms .zoom_top .flex .zoom_right {
    margin-left: 34px;
}

#main .concept_zooms .zoom_top .flex .zoom_right .zoom_text {
    text-align: left;
}

#main .concept_zooms .zoom_bottom {
    width: 90%;
    margin-left: auto;
    margin-right: auto;
}

#main .concept_zooms .zoom_bottom .concept_zoom_bottom_title {
    font-size: 1.5em;
    color: #9e2428;
    border-bottom: 2px dashed #9e2428;
}

#main .concept_zooms .zoom_bottom .flex {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0 12px;
    padding-top: 30px;
}

#main .concept_zooms .zoom_bottom .flex .zoom_left {
    text-align: left;
}

#main .concept_zooms .zoom_bottom .flex .zoom_left .zoom_text {
    font-size: 0.875em;
}

#main .concept_zooms .zoom_bottom .flex .zoom_right img {
    width: 240px;
}


@media screen and (max-width: 1000px) {

    /* mainvisual */
    /* -------------------------------------------------------- */
    #mainvisual {
        height: 100%;
    }

    #mainvisual img {
        max-width: none;
        width: 110%;
        margin-left: -10%;
    }

    #mainvisual .mainvisual_text_item {
        width: 67vw;
        left: 31%;
    }

    #mainvisual .mainvisual_text_item .mainvisual_title {
        font-size: max(3.2vw, 16px);
        padding: 0.6vw;
    }

    #mainvisual .mainvisual_text_item .mainvisual_sub-area .mainvisual_text {
        font-size: max(1.92vw, 12px);
        padding-top: 1.9vw;
    }

    #mainvisual .scroll_btn {
        width: 4.5vw;
        height: 4.5vw;
    }



    /* main */
    /* -------------------------------------------------------- */
    #main .check_area {
        margin-bottom: 6.2vw;
    }

    #main .check_area .check_list .check_item {
        margin-bottom: 1.3vw;
    }

    #main .check_area .check_list .check_item .check_text {
        margin-left: 2.2vw;
        font-size: max(2.03vw, 12px);
    }

    #main .speech_balloon {
        margin-bottom: 3.4vw;
    }

    #main .speech_balloon .speech_balloon-text {
        font-size: max(2.4vw, 12px);
    }

    #main .concept_top {
        padding: 3.7vw 0 1.9vw;
        margin-bottom: 4vw;
        font-size: max(1.6vw, 12px);
    }

    #main .concept_top .concept_title {
        font-size: max(2.4vw, 13px);
        margin-bottom: 2vw;
    }

    #main .concept_top .concept_text {
        width: 64.7419vw;
        font-size: max(1.6vw, 12px);
    }

    #main .concept_top .concept_sub-title {
        font-size: max(2.08vw, 13px);
    }

    #main .concept_works {
        padding: 0;
        margin: 9vw 0 14.3vw;
    }

    #main .concept_works .grid_area {
        gap: 3vw;
    }

    #main .concept_works .grid_area .grid_item {
        width: 28vw;
        height: 22vw;
    }

    #main .concept_works .grid_area .grid_item .work_title {
        font-size: max(2.6vw, 14px);
    }


    #main .concept_works .grid_area .grid_item .triangle {
        width: 10vw;
        height: 8vw;
    }

    #main .concept_works .grid_area .grid_item .back_text_work .back_title {
        font-size: max(2.6vw, 12px);
        margin-bottom: 0.8vw;
    }

    #main .concept_works .grid_area .grid_item .back_text_work .back_text {
        font-size: max(1.6vw, 10px);
    }

    #main .colum_box {
        margin-bottom: 8vw;
    }

    #main .colum_box .colum_title {
        font-size: max(2.916vw, 12px);
        padding-bottom: 0.5vw;
        margin-bottom: 4vw;
    }

    #main .colum_box .colum_container .colum_list .colum_content {
        width: calc(27vw - 6.12vw - 0.18vw);
        padding: 2.34vw 3.06vw;
    }

    #main .colum_box .colum_container .colum_list .colum_content img {
        width: calc(20.7vw - 0.18vw);
        height: calc(14.4vw - 0.18vw);
        margin-bottom: 1.8vw;
    }

    #main .colum_box .colum_container .colum_list .colum_content .top_text {
        margin-bottom: 1.08vw;
    }

    #main .concept_zooms {
        padding: 3.8vw 0 2.7vw;
    }

    #main .concept_zooms .zoom_top {
        margin-bottom: 3.6vw;
    }

    #main .concept_zooms .zoom_top .concept_zoom_top_title {
        font-size: max(2.16vw, 14px);
        border-bottom: 0.2vw dashed #9e2428;
    }

    #main .concept_zooms .zoom_top .flex {
        padding: 0 1.2vw;
        padding-top: 3vw;
    }

    #main .concept_zooms .zoom_top .flex .zoom_left {
        width: 33.86314vw;
    }

    #main .concept_zooms .zoom_top .flex .zoom_left>img {
        width: 24.0944vw;
    }

    #main .concept_zooms .zoom_top .flex .zoom_left .abs {
        width: 11.482vw;
        right: 2vw;
    }

    #main .concept_zooms .zoom_top .flex .zoom_right {
        margin-left: 3.4vw;
    }

    #main .concept_zooms .zoom_bottom .concept_zoom_bottom_title {
        font-size: max(2.16vw, 14px);
        border-bottom: 0.2vw dashed #9e2428;
    }

    #main .concept_zooms .zoom_bottom .flex {
        padding: 0 1.2vw;
        padding-top: 3vw;
    }

    #main .concept_zooms .zoom_bottom .flex .zoom_left .zoom_text {
        font-size: max(1.26vw, 12px);
    }

    #main .concept_zooms .zoom_bottom .flex .zoom_right img {
        width: 24vw;
    }

    #main .news {
        margin-top: 9vw;
        margin-bottom: 10vw;
    }

    #main .news .news_title {
        font-size: max(3.6vw, 18px);
        padding-left: 1.2vw;
    }

    #main .news .news_content {
        margin: 2.8vw 4.5vw;
        max-height: 12.5vw;
    }

    #main .news .news_content dl {
        font-size: max(1.6vw, 12px);
    }

    #main .news .news_content dl dd {
        margin-left: 3.4vw;
    }
}

@media screen and (max-width: 727px) {
    #main .concept_zooms {
        margin: 0 calc(50% - 50vw);
    }
}

@media screen and (max-width: 600px) {
    #main .concept_zooms .zoom_bottom .flex {
        flex-direction: column-reverse;
        align-items: unset;
    }

    #main .concept_zooms .zoom_bottom .flex .zoom_right img {
        width: 240px;
        margin-bottom: 10px;
    }
}

@media screen and (max-width: 597px) {
    #main .concept_zooms .tab {
        display: block;
        width: 52vw;
    }

    #main .concept_zooms .pc {
        display: none;
    }

}

@media screen and (max-width: 590px) {
    #main .concept_zooms .zoom_top .flex .zoom_left .abs {
        right: 0vw;
    }

    #main .concept_works .grid_area .grid_item a:hover~.triangle {
        transition: all 0.5s;
    }

}

@media screen and (max-width: 540px) {
    /* mainvisual */
    /* -------------------------------------------------------- */

    #mainvisual .mainvisual_text_item {
        width: 90%;
        left: 0;
    }

    #mainvisual .mainvisual_text_item .mainvisual_title {
        font-size: max(4.2vw, 14px);
    }

    #main .concept_top {
        padding: 3.7vw 5vw 1.9vw;
    }

    #mainvisual .mainvisual_text_item .mainvisual_sub-area .mainvisual_text {
        font-size: max(2.8vw, 12px);
        padding-top: 1.9vw;
    }

    #mainvisual .scroll_btn {
        width: 4.5vw;
        height: 4.5vw;
    }

    /* main */
    /* -------------------------------------------------------- */

    #main .concept_top .concept_text {
        width: auto;
    }
}

@media screen and (max-width: 500px) {

    .top-nav{
        width: 8.667vw;
        height: 8.667vw;
    }

    #mainvisual .main_pc{
        display: none;
    }

    #mainvisual .main_sp{
        display: block;
    }

    #main .check_area .check_list .check_item .check_text{
        margin-left: 6.2vw;
    }

    #main .speech_balloon img.ballon {
        display: none;
    }

    #main .speech_balloon img.ballon_sp {
        display: block;
        width: 100%;
    }

    #main .speech_balloon .speech_balloon-text {
        font-size: max(4.4vw, 12px);
    }

    #main .concept_top .concept_title {
        font-size: max(4.4vw, 14px);
        line-height: 1.3;
    }

    #main .concept_top .concept_text{
        font-size: max(3.2vw, 12px);
    }

    #main .concept_top .concept_sub-title {
        font-size: max(4.16vw, 13px);
    }

    #main .concept_works .grid_area {
        grid-template-columns: repeat(2, 1fr);
    }

    #main .concept_works .grid_area .grid_item {
        width: 43vw;
        height: 32vw;
    }

    #main .concept_works .grid_area .grid_item .work_title {
        font-size: max(3.6vw, 14px);
    }

    #main .concept_works .grid_area .grid_item .back_text_work {
        display: none;
    }

    #main .concept_works .grid_area .grid_item a:hover+img {
        opacity: 1;
    }

    #main .concept_works .grid_area .grid_item a:hover~.mask {
        opacity: 0.3;
    }

    #main .concept_works .grid_area .grid_item a:hover~.work_title {
        opacity: 1;
    }

    #main .concept_works .grid_area .grid_item a:hover~.triangle {
        opacity: 1;
    }

    #main .colum_box .colum_title{
        font-size: max(6.916vw, 16px);
    }

    #main .colum_box .colum_container .colum_list{
        flex-direction: column;
        align-items: center;
    }

    #main .colum_box .colum_container .colum_list .colum_content{
        width: calc(60vw - 13.8vw);
        padding: 4.3vw 6.9vw 5.2vw;
        margin-bottom: 3.5vw;
    }

    #main .colum_box .colum_container .colum_list .colum_content img{
        width: 100%;
        height: 32vw;
        object-fit: cover;
        margin-bottom: 4vw;
        text-align: center;
    }

    #main .colum_box .colum_container .colum_list .colum_content .top_text{
        font-size: max(3.2vw, 14px);
        margin-bottom: 1.5vw;
        font-weight: bold;
    }

    #main .colum_box .colum_container .colum_list .colum_content .bottom_text{
        font-size: max(3.2vw, 14px);
    }

    #main .concept_zooms{
        margin: 0;
    }

    #main .concept_zooms .zoom_top .concept_zoom_top_title, #main .concept_zooms .zoom_bottom .concept_zoom_bottom_title{
        font-size: max(5vw, 16px);
        line-height: 1.3;
    }

    #main .concept_zooms .zoom_top .flex{
        flex-direction: column;
        align-items: center;
    }

    #main .concept_zooms .zoom_top .flex .zoom_left{
        width: 80%;
        margin-bottom: 4vw;
    }

    #main .concept_zooms .zoom_top .flex .zoom_left>img{
        width: 50.0944vw;
    }

    #main .concept_zooms .zoom_top .flex .zoom_left .abs{
        width: 20.482vw;
        right: -2vw;
    }

    #main .concept_zooms .zoom_top .flex .zoom_right .zoom_text{
        width: 100%;
        font-size: max(3.2vw, 12px);
    }

    #main .concept_zooms .zoom_bottom .flex .zoom_left .zoom_text{
        font-size: max(3vw, 12px);
    }
}

@media screen and (max-width: 402px) {
    #mainvisual{
        height: 50vh;
    }
}