@charset "utf-8";
/* CSS Document */

body {
    font-size: 1rem;
    line-height: 1;
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN",
        "Hiragino Sans", Meiryo, sans-serif;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

* {
    box-sizing: border-box;
}

/*--Link------------------------------------------------------------*/
a:hover,
a:active {
    text-decoration: none;
}
a:focus {
    outline: none;
}

._hover {
    transition: opacity 0.3s linear;
    opacity: 1;
}
._hover:hover {
    opacity: 0.7;
}

/*--inner ----------------------------------------------------------*/
.contents_inner {
    width: 90%;
    max-width: 1080px;
    margin: 0 auto;
    position: relative;
}

/*--#header----------------------------------------------------------*/
header {
    z-index: 10;
    position: fixed;
    width: 100%;
    padding: 20px 0;
    background-color: #000;
}
#top header {
    background-color: transparent;
}

header a,
header a:visited {
    color: #fff;
    text-decoration: none;
}

header .contents_inner,
.head_nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav_menu {
    display: flex;
    justify-content: space-between;
    font-family: "Roboto";
    font-size: 16px;
}
.nav_menu li {
    margin: 0 20px;
}

.nav_menu li a {
    padding-top: 5px;
    position: relative;
}
.nav_menu li a:after {
    background-color: #fff;
    top: 0;
    content: "";
    display: block;
    height: 3px;
    left: 0;
    position: absolute;
    transition: 0.5s all;
    width: 0;
}
.nav_menu li a:hover:after {
    width: 100%;
}
#top .nav_menu li:first-of-type a:after,
#news .nav_menu li:nth-of-type(2) a:after,
#concertinfo .nav_menu li:nth-of-type(3) a:after,
#report .nav_menu li:nth-of-type(5) a:after,
#contact .nav_menu li:last-of-type a:after {
    width: 100%;
}

.sns_list {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.sns_list li {
    margin-left: 20px;
}
.hamburger {
    display: none;
}

@media (max-width: 768px) {
    .head_logo img.logo {
        width: 40vw;
    }
    .head_nav {
        display: none;
    }
    /*　ハンバーガーボタン　*/
    .hamburger_wrap {
        background-color: #fff;
        width: 42px;
        height: 42px;
        right: 13px;
        top: 12px;
        position: fixed;
        z-index: 20;
    }
    .hamburger {
        display: block;
        width: 100%;
        height: 100%;
        cursor: pointer;
        text-align: center;
        -webkit-transition: 0.5s all;
        -moz-transition: 0.5s all;
        transition: 0.5s all;
    }
    .hamburger span {
        display: block;
        position: absolute;
        width: 30px;
        height: 2px;
        left: 6px;
        background: #000;
    }
    .hamburger span:nth-child(1) {
        top: 10px;
    }
    .hamburger span:nth-child(2) {
        top: 20px;
    }
    .hamburger span:nth-child(3) {
        top: 30px;
    }

    .hamburger.active {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
    .hamburger.active span:nth-child(1) {
        top: 20px;
        left: 6px;
        -webkit-transform: rotate(-45deg);
        -moz-transform: rotate(-45deg);
        transform: rotate(-45deg);
    }
    .hamburger.active span:nth-child(2) {
        top: 20px;
        -webkit-transform: rotate(45deg);
        -moz-transform: rotate(45deg);
        transform: rotate(45deg);
    }
    .hamburger.active span:nth-child(3) {
        opacity: 0;
    }

    .head_nav {
        display: block;
        position: fixed;
        z-index: 11;
        top: 0;
        left: 0;
        color: #000;
        background: rgba(0, 0, 0, 0.85);
        text-align: center;
        transform: translateY(-100%);
        transition: all 0.6s;
        width: 100%;
        padding-top: 2rem;
        height: 100vh;
    }

    .nav_menu {
        display: block;
        text-align: center;
        width: 90%;
        margin: 0 auto;
    }
    .nav_menu a {
        width: 100%;
        display: block;
        padding: 1rem 0;
    }
    .nav_menu li {
        margin: 5.333vw 0;
        border-bottom: 1px solid #fff;
    }
    .nav_menu li a {
        padding-top: 0;
    }
    .nav_menu li a:after {
        display: none !important;
    }
    .sns_list {
        justify-content: center;
    }
    .sns_list li:first-of-type {
        margin-left: 0;
    }

    .head_nav.active {
        transform: translateY(0%);
    }
}

/*--flex_box----------------------------------------------------------*/
.flex_wrap {
    display: flex;
}
.flex_wrap02 {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.flex_wrap03 {
    display: flex;
    flex-wrap: wrap;
}

.flex_wrap02 .flex_box {
    width: 50%;
}

.flex_wrap03 .flex_box {
    width: 30%;
    margin-left: 5%;
}
.flex_wrap03 .flex_box:nth-of-type(3n + 1) {
    margin-left: 0;
}

@media (max-width: 768px) {
    .flex_wrap02 .flex_box {
        width: 100%;
    }
    .flex_wrap03 {
        justify-content: space-between;
    }
    .flex_wrap03 .flex_box {
        width: 48%;
        margin-left: 0;
    }
}

/*--news_list----------------------------------------------------------*/
.news_list {
    display: flex;
    flex-wrap: wrap;
    line-height: 1.4;
    padding-top: 20px;
}
.news_list dt {
    font-size: 1rem;
    width: 16rem;
    border-bottom: #c8c8c8 1px solid;
    padding: 10px 0;
}
.news_list dd {
    width: calc(100% - 16rem);
    font-size: 1.25rem;
    border-bottom: #c8c8c8 1px solid;
    padding: 10px 0;
}
.news_list dd a {
    color: #000;
}

@media (max-width: 768px) {
    .news_list {
        display: block;
        padding-top: 2.667vw;
    }
    .news_list dt {
        font-size: 0.8rem;
        width: 100%;
        border-bottom: none;
        padding: 1.333vw 0 0;
    }
    .news_list dd {
        width: 100%;
        font-size: 1rem;
        padding: 0 0 1.333vw;
    }
}

/*--article_list----------------------------------------------------------*/
.article_list .flex_wrap02 .flex_box {
    margin-top: 40px;
}

.article_list .flex_wrap02 .flex_box a {
    display: flex;
    align-items: flex-start;
}

.month_ttl {
    font-size: 1.6rem;
    border-bottom: #000 1px solid;
    padding: 60px 0 10px;
    line-height: 1;
}

.article_list_ttl {
    font-size: 1.25rem;
    margin-left: 1rem;
    line-height: 1.4;
    word-break: break-all;
}

.article_list .flex_wrap02 a {
    color: #000;
}

.flex_wrap02 img {
    max-width: 30%;
}

@media (max-width: 768px) {
    .month_ttl {
        font-size: 1.25rem;
        padding: 8vw 0 1.333vw;
    }
    .article_list .flex_wrap02 .flex_box {
        margin-top: 5.333vw;
    }
    .article_list .flex_wrap02 .flex_box img {
        width: 30%;
    }
    .article_list_ttl {
        font-size: 1rem;
        word-break: break-all;
    }
}

/*--.report_list----------------------------------------------------------*/
.report_list .flex_box {
    margin-top: 30px;
}

.report_list .flex_box a {
    color: #000;
}

.report_list .flex_box p {
    font-size: 1rem;
    margin-top: 10px;
}
.report_list .flex_box h4 {
    font-size: 1.25rem;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .report_list .flex_box {
        margin-top: 4vw;
    }
    .report_list .flex_box p {
        font-size: 0.8rem;
        margin-top: 1.333vw;
    }
    .report_list .flex_box h4 {
        font-size: 1rem;
    }
}

/*--color----------------------------------------------------------*/
.yellow {
    color: #d3a100;
}
.red {
    color: #c80000;
}
.orange {
    color: #f08e71;
}

/*------------------------------------------------------------*/
.sp {
    display: none;
}

.txt_c {
    text-align: center;
}

.mt40 {
    margin-top: 40px;
}
.mt60 {
    margin-top: 60px;
}
.mt80 {
    margin-top: 80px;
}

.pt40 {
    padding-top: 40px;
}
.pt80 {
    padding-top: 80px;
}

.pb80 {
    padding-bottom: 80px;
}

@media (max-width: 768px) {
    .sp {
        display: block;
    }
    .pc {
        display: none;
    }

    .mt40 {
        margin-top: 5.333vw;
    }
    .mt60 {
        margin-top: 8vw;
    }
    .mt80 {
        margin-top: 10.667vw;
    }

    .pt40 {
        padding-top: 5.333vw;
    }
    .pt80 {
        padding-top: 10.667vw;
    }

    .pb80 {
        padding-bottom: 10.667vw;
    }
}

/*--footer----------------------------------------------------------*/
.footer_bnr {
    padding: 40px 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    background-color: #fff;
}
.footer_bnr li {
    margin: 0 20px;
}

.footer_link {
    padding: 20px 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    background-color: #5a5a5a;
}
.footer_link li {
    margin: 0 20px;
    font-family: "Roboto";
    font-size: 1rem;
    font-weight: 700;
}
.footer_link li a {
    color: #fff;
}

.copylight {
    background-color: #000;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

.copylight p {
    font-size: 0.75rem;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .footer_bnr {
        padding: 5.333vw 0;
    }
    .footer_bnr li {
        margin: 0;
        text-align: center;
        width: 30%;
    }
    .footer_link {
        padding: 2.667vw 0;
    }
    .footer_link li {
        margin: 0 1.333vw;
    }
    .copylight {
        padding: 2.667vw 0;
    }
}

/* footer固定 */
body {
    min-height: 100vh;
    position: relative;
    padding-bottom: 280px;
    box-sizing: border-box;
}

footer {
    width: 100%;
    position: absolute;
    bottom: 0;
}

@media (max-width: 768px) {
    body {
        padding-bottom: 330px;
    }
}