*{
    font-family:"Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", sans-serif;
    margin: 0;
    letter-spacing: 0.05em;
}
a {
    text-decoration: none;
    color: #000;
}
ul {
    padding-left: 0;
}
li {
    list-style: none;
}
.PC {
    display: block;
}
.SP {
    display: none;
}

.wrap {
    overflow: hidden;
}



/* header */
header {
    width: 100%;
    padding: 30px 0px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
}
.header-background {
    background: rgba(255, 255, 255, 0.5);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    transition: 1s;
}
.header-logo {
    width: 60px;
    float: left;
    padding-left: 50px;
}
.header-logo img {
    width: 100%;
}
.header-menu {
    width: 80%;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.header-menu a {
    display: inline-block;
    color: black;
    font-size: 18px;
    font-family: din-2014, sans-serif;
    font-weight: 600;
    font-style: normal;
    border-bottom: 2px solid black;
    padding: 5px 0px;
    margin: 0 20px;
    transition: 0.5s;
}
.header-menu a:hover {
    opacity: 0.3;
}
.header-sns {
    float: right;
    position: absolute;
    right: 50px;
    top: 50%;
    transform: translateY(-50%);
}
.header-sns a {
    transition: 0.5s;
}
.header-sns a:hover {
    opacity: 0.3;
}
.header-sns a i {
    color: black;
    padding-left: 30px;
}
.firstview-catchcopy {
    width: 500px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.firstview-catchcopy img {
    width: 100%;
}



/* hamburger menu */
.hamburger-menu{
    display: none;
}
.hamburger-header-wrap {
    width: 100%;
    height: 90px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 99;
}
.nav-position{
    position: fixed;
    top: 0;
    right: 0;
    z-index: 999;
    padding: 33px;
}
.nav-toggle{
    display: block;
    position: relative;
    width: 1.75rem;
    height: 1.5rem;
}
.nav-toggle i{
    display: block;
    width: 100%;
    height: 2px;
    background-color: black;
    position: absolute;
    transition: transform .5s, opacity .5s;
}
.nav-toggle i:nth-child(1){
    top: 0;
}
.nav-toggle i:nth-child(2){
    top: 0;
    bottom: 0;
    margin: auto;
}
.nav-toggle i:nth-child(3){
    bottom: 0;
}
.nav{
    width: 80vw;
    height: 100%;
    background: -moz-linear-gradient(top left, #2FB7FF, #2470C9); 
    background: -webkit-linear-gradient(top left, #2FB7FF, #2470C9); 
    background: linear-gradient(to bottom right, #2FB7FF, #2470C9);
    z-index: 990;
    position: fixed;
    top: 0;
    right: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity .5s, visibility .5s;
}
.nav ul{
    padding: 80px 0 0 40px;
}
.nav ul li a{
    width: 80%;
    height: 25px;
    color: white;
    font-size: 18px;
    font-family: din-2014, sans-serif;
    font-weight: 600;
    font-style: normal;
    padding: 20px 0px 10px 0px;
    margin-top: 20px;
    display: inline-block;
    border-bottom: 1px solid white;
}
.nav ul li a span{
    font-size: 14px;
    font-family:"Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", sans-serif;
    font-weight: lighter;
    padding-left: 10px;
}
.hamburger-sns {
    padding: 50px 0 0 40px;
    margin: 0 auto;
}
.hamburger-sns a {
    color: white;
    margin-right: 40px;
}



/* hamburger menu_click */
.nav.show {
    opacity: 1;
    visibility: visible;
}
.nav-toggle.show i{
    background-color: white;
}
.nav-toggle.show i:nth-child(1) {
    transform: translateY(10px) rotate(-45deg);
}
.nav-toggle.show i:nth-child(2) {
    opacity: 0;
}
.nav-toggle.show i:nth-child(3) {
    transform: translateY(-12px) rotate(45deg);
}



/* main */
.main {
    width: 90%;
    padding: 180px 0 150px 0;
    max-width: 1200px;
    margin: 0 auto;
}
.main h1 {
    color: #26A7E1;
    font-size: 50px;
    letter-spacing: 0.1em;
    font-family: din-2014, sans-serif;
    font-weight: 600;
    font-style: normal;
    text-align: center;
}
.sub-title {
    color: #26A7E1;
    font-size: 16px;
    text-align: center;
}



/* news */
.news__container {
    width: 90%;
    max-width: 1080px;
    margin: 0 auto;
}
.news__cnt {
    width: 100%;
    padding: 40px 100px 40px 50px;
    margin-top: 30px;
    display: flex;
    align-items: center;
    gap: 0 50px;
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.16);
    position: relative;
    box-sizing: border-box;
    transition: opacity .3s ease;
}
.news__cnt:hover {
    opacity: .5;
}
.news__cnt__img {
    width: 34%;
    height: 200px;
}
.news__cnt__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.news__cnt__txt {
    width: calc(100% - (34% - 50px));
}
.news__cnt__txt__index {
    display: flex;
    align-items: center;
    gap: 0 15px;
}
.news__cnt__txt__index__date {
    font-size: 18px;
    letter-spacing: 0.05em;
    font-family: din-2014, sans-serif;
    font-weight: 600;
    font-style: normal;
}
.news__cnt__txt__index__category {
    color: #FFF;
    font-size: 14px;
    letter-spacing: 0.05em;
    text-align: center;
    background: linear-gradient(to right bottom, #25A7E1, #2679D0);
    padding: 3px 10px;   
}
.news__cnt__txt__title {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0.05em;
    line-height: 1.3;
    margin-top: 15px;
    display: -webkit-box;             
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    -webkit-line-clamp: 2;
}
.news__cnt__txt p {
    font-size: 16px;
    letter-spacing: 0.05em;
    line-height: 1.5;
    margin-top: 20px;
    display: -webkit-box;             
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    -webkit-line-clamp: 2;
}
.news__cnt__arrow {
    position: absolute;
    top: 50%;
    right: 30px;
    transform: translateY(-50%);
    display: inline-block;
    width: 15px;
    height: 25px;
    transition: transform .3s ease;
}
.news__cnt:hover .news__cnt__arrow {
    transform: translate(7px, -50%);
}
.news__cnt__arrow::before,
.news__cnt__arrow::after {
    content: "";
    position: absolute;
    top: calc(50% - 0.5px);
    right: 0;
    width: 19.2px;
    height: 1px;
    border-radius: 9999px;
    background-color: #25a7e1;
    transform-origin: calc(100% - 0.5px) 50%;
}
.news__cnt__arrow::before {
    transform: rotate(43.65deg);
}
.news__cnt__arrow::after {
    transform: rotate(-43.65deg);
}



/* detail */
.news__detail {
    width: 90%;
    max-width: 800px;
    margin: 50px auto 0;
}
.news__detail__index__meta {
    display: flex;
    align-items: center;
    gap: 0 15px;
}
.news__detail__index__meta__date {
    font-size: 18px;
    font-family: din-2014, sans-serif;
    font-weight: 600;
    font-style: normal;
    letter-spacing: 0.05em;
}
.news__detail__index__meta__category {
    color: #FFF;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.05em;
    background: linear-gradient(to right bottom, #25A7E1, #2679D0);
    padding: 3px 10px;
}
.news__detail__index h2 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 0.05em;
    line-height: 1.3;
    margin-top: 15px;
}
.news__detail__thum {
    width: 100%;
    aspect-ratio: 1.778/1;
    margin-top: 40px;
}
.news__detail__thum img {
    width: 100%;
}
.news__detail__cnt__section {
    margin-top: 50px;
}
.news__detail__cnt__section p {
    font-size: 16px;
    letter-spacing: 0.05em;
    line-height: 1.8;
    padding-top: 20px;
}
.news__detail__cnt__section h3 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.05em;
    line-height: 1.3;
}
.news__detail__cnt__section ul {
    width: 100%;
    background: #FAFAFA;
    padding: 20px 25px;
    margin-top: 20px;
    box-sizing: border-box;
}
.news__detail__cnt__section ul li {
    font-size: 16px;
    letter-spacing: 0.05em;
    line-height: 1.5;
    padding-left: 16px;
    margin-top: 10px;
    position: relative;
}
.news__detail__cnt__section ul li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 100%;
    background: #2679D0;
    position: absolute;
    top: 9px;
    left: 0;
}
.news__detail__cnt__section a {
    color: #2679D0;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.05em;
    border-bottom: 1px solid #2679D0;
    transition: opacity .3s ease;
}
.news__detail__cnt__section a:hover {
    opacity: .5;
}
.news__detail__btn {
    display: block;
    width: 300px;
    color: #2679D0;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-align: center;
    border-radius: 50px;
    border: 1px solid #2679D0;
    padding: 20px;
    margin: 70px auto 0;
    transition: all .3s ease;
}
.news__detail__btn:hover {
    color: #FFF;
    background: #2679D0;
    border: 1px solid transparent;
}



/* footer */
.footer {
    width: 100%;
    height: 400px;
    background: #003A64;
    position: relative;
}
.footer-content {
    width: 600px;
    padding-top: 100px;
    margin: 0 auto;
}
.footer-logo {
    width: 100px;
    float: left;
    padding-top: 25px;
}
.footer-logo img {
    width: 100%;
}
.footer-menu {
    float: right;
}
.footer-menu ul {
    float: left;
}
.footer-menu ul li {
    margin-bottom: 35px;
}
.ul-left {
    margin-right: 60px;
}
.footer-menu ul li a {
    color: white;
    font-family: din-2014, sans-serif;
    font-weight: lighter;
}
.footer-copyright {
    color: white;
    font-size: 10px;
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}





@media screen and (max-width: 1000px) {
    .PC {
        display: none;
    }
    .SP {
        display: block;
    }

    /* header */
    header {
        display: none;
    }
    .hamburger-header-logo {
        width: 50px;
        position: fixed;
        top: 0;
        left: 0;
        z-index: 99;
        padding: 20px;
    }
    .hamburger-header-logo img {
        width: 100%;
    }
    .firstview-catchcopy {
        width: 90%;
        max-width: 500px;
    }
    /* hamburger menu */
    .hamburger-menu{
        display: block;
    }
    

    /* news */
    .news__cnt {
        padding: 20px 50px 30px 20px;
        margin-top: 20px;
        display: block;
    }
    .news__cnt:hover {
        opacity: 1;
    }
    .news__cnt__img {
        width: 100%;
        height: 170px;
    }
    .news__cnt__txt {
        width: 100%;
        margin-top: 20px;
    }
    .news__cnt__txt__index {
        gap: 0 10px;
    }
    .news__cnt__txt__index__date {
        font-size: 15px;
    }
    .news__cnt__txt__index__category {
        font-size: 12px;
        padding: 2px 7px;
    }
    .news__cnt__txt__title {
        font-size: 16px;
        margin-top: 10px;
        -webkit-line-clamp: 3;
    }
    .news__cnt__txt p {
        font-size: 12px;
        margin-top: 10px;
        -webkit-line-clamp: 2;
    }
    .news__cnt__arrow {
        right: 15px;
    }
    .news__cnt:hover .news__cnt__arrow {
        transform: translateY(-50%);
    }

    /* detail */
    .news__detail__index__meta {
        gap: 0 10px;
    }
    .news__detail__index__meta__date {
        font-size: 16px;
    }
    .news__detail__index__meta__category {
        font-size: 12px;
        padding: 3px 7px;
    }
    .news__detail__index h2 {
        font-size: 20px;
        margin-top: 15px;
    }
    .news__detail__thum {
        margin-top: 30px;
    }
    .news__detail__cnt__section {
        margin-top: 40px;
    }
    .news__detail__cnt__section p {
        font-size: 14px;
        padding-top: 15px;
    }
    .news__detail__cnt__section h3 {
        font-size: 18px;
    }
    .news__detail__cnt__section ul {
        padding: 15px 20px;
        margin-top: 15px;
    }
    .news__detail__cnt__section ul li {
        font-size: 14px;
        padding-left: 10px;
        margin-top: 10px;
    }
    .news__detail__cnt__section ul li::before {
        width: 4px;
        height: 4px;
        top: 8px;
    }
    .news__detail__cnt__section a {
        font-size: 14px;
    }
    .news__detail__cnt__section a:hover {
        opacity: 1;
    }
    .news__detail__btn {
        width: 250px;
        font-size: 14px;
        padding: 15px;
        margin: 50px auto 0;
    }
    .news__detail__btn:hover {
        color: #2679D0;
        background: transparent;
        border: 1px solid #2679D0;
    }


    /* main */
    .main {
        width: 95%;
        padding: 130px 0 70px 0;
    }
    .main h1 {
        font-size: 40px;
    }
    .sub-title {
        font-size: 14px;
    }
    
    /* footer */
    .footer {
        height: 55px;
    }
    .footer-content {
        display: none;
    }
    .footer-copyright {
        width: 90%;
        color: white;
        text-align: center;
        font-size: 12px;
        margin: 0 auto;
    }
}