@media screen and (min-width:1024px) {
    /*whole*/
    *{
        font-family: 'Noto Sans JP', sans-serif;
    }
    html, body{
        margin:0;
        padding:0;
    }
    body{
        position: relative;
    }

    /*header*/
    .site-header{
        width: 100%;
        height: 90px;
        background: #fff;
        padding: 0.5em;
        top: 0;
        transition: .5s;
        position: sticky;
        z-index: 999;
        opacity: 0.9;
    }
    .header-logo img{
        height: 20px;
        width: auto;
    }
    .nav{
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .nav li:last-child{
        margin-right:1.5em;
        padding: 0.5em;
    }
    .nav_item{
        list-style-type: none;
        font-size:1.3em;
        color: black;
    }
    .nav_item img{
        height: 9vh;
    }
    .btn{
        border: 1px solid #222;
        padding: 0.6em;
        position: relative;
        overflow: hidden;
        text-decoration: none;
        display: inline-block;
        text-align: center;
        outline: none; 
        transition: ease .2s;
    }
    .btn span {
        position: relative;
        z-index: 3;
        color:#333;
    }
    .btn:hover span{
        color:#fff;
    }
    .bgleft:before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        z-index: 2;
        background:#333;
        width: 100%;
        height: 100%;
        transition: transform .6s cubic-bezier(0.8, 0, 0.2, 1) 0s;
        transform: scale(0, 1);
        transform-origin: right top;
    }
    .bgleft:hover:before{
        transform-origin:left top;
        transform:scale(1, 1);
    }

    /*slideshow*/
    #slideshow{
        width: 100%;
        height: 60vh;
    }
    .background{
        max-height: 40em;
        overflow: hidden;
    }

    /*title of AHS*/
    .title_ahs{
        width: 80%;
        margin: 1.5em auto;
    }
    .image_ahs{
        width: 60%;
        margin: 0 auto;
    }
    .image_ahs img{
        width: 100%;
    }

    /************contents************/
    .wrap{
        width: 90%;
        margin: 0 auto;
        display: flex;
    }
    /*********left*********/
    /*sidebar*/
    .side{
        width: 35%;
    }
    .sidebar{
        width: 80%;
        margin: 1.0em auto;
        padding: 1.5em;
        background-color: #F0F8FF;
    }
    .contents_sidebar{
        width: 95%;
        margin: 0 auto;
        list-style-type: none;
    }
    .contents_sidebar li:not(:last-child){
        border-bottom: 1px dotted #CCCCCC;
    }
    .contents_sidebar_item{
        position: relative;
        margin-left: 1.0em;
        padding: 1.5em;
        font-size: 1.2em;
        color: #333;
        transition: all .5s;
    }
    .contents_sidebar_item::before {
        content:"";
        display:inline-block;
        width: 10px;
        height: 40px;
        background-color: #99CFFF;
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        left: -10px;
        border-radius: 30px;
    }
    .contents_sidebar_item:hover{
        background-color: #E6F3FF;
        color: #000000;
        cursor: pointer;
    }
    .contents_sidebar_item:active{
        background-color: #B3DAFF;
        color: #000000;
        cursor: pointer;
    }
    /*********right*********/
    .main{
        width: 65%;
    }
    .topic{
        width: 100%;
        margin: 2.0em auto;
    }
    .title_topic{
        width: 100%;
        margin: 1.5em auto;
    }
    .image_topic{
        width: 50%;
    }
    .image_topic img{
        width: 100%;
    }
    .summary_title_topic{
        width: 98%;
        margin: 1.0em auto;
        font-size: 1.1em;
        line-height: 1.7em;
    }
    .contents_topic{
        width: 100%;
        margin: 1.5em auto;
    }
    .contents_topic_item{
        width: 100%;
        margin: 0.5em auto;
    }
    .headline{
        width: 98%;
        margin: 0 auto;
        padding: 0.5em 1.0em;
        border-left: 8px solid #27acd9;
        border-bottom: 1px solid #ddd;
        font-size: 1.4em;
        font-weight: 800;
    }
    .cap_headline{
        width: 95%;
        margin: 1.0em auto;
        font-size: 1.0em;
        line-height: 1.7em;
    }
    .contents_time-schedule{
        width: 98%;
        margin: 1.0em auto;
    }
    .time-schedule{
        display: flex;
    }
    .time-schedule_item{
        width: 45%;
        margin: 0 auto;
    }
    .title_time-schedule{
        width: 70%;
        margin: 1.0em auto;
        font-size: 1.3em;
        font-weight: 600;
        text-align: center;
    }
    .schedule{
        list-style: none;
        margin: 0 0 0 0.5em;
        padding-left: 20px;
        border-left: 6px solid #6495ED;
        box-sizing: border-box;
        position: relative;
        left: 55px;
    }
    .schedule li{
        width: 80%;
        margin: 0 0;
        padding: 1.0em 0;
        position: relative;
    }
    .time{
        width: 5em;
        display: inline-block;
        margin-left: -8em;
        padding: 0 0 5px;
        margin-top: 15px;
        vertical-align: top;
        position: relative;
        text-align: right;
        box-sizing: border-box;
        font-size: 1.0em;
    }
    .time::after{
        content: "";
        position: absolute;
        right: -35px;
        top: 0;
        background: #6495ED;
        width: 20px;
        height: 20px;
        border-radius: 10px;
    }
    .schedule_box{
        display: inline-block;
        width: 100%;
        margin-left: 2.7em;
        padding: 1.0em;
        vertical-align: middle;
        background: #efefef;
        box-sizing: border-box;
        border-radius: 6px;
    }
    .schedule_box p{
        font-size: 1.0em;
        line-height: 1.6em;
    }
    .note_headline{
        width: 95%;
        margin: 0.5em auto;
        line-height: 1.5em;
        font-size: 1.0em;
    }
    .note_headline p::before{
        content: "※";
    }

    /*smooth scroll*/
    .topbtn{
        right: 40px;
        background: #333;
        opacity: 0.6;
        border-radius: 50%;
        display: block;
        width: 70px;
        height: 70px;
        text-decoration: none;
    }
    .topbtn::before{
        font-family: 'Font Awesome 5 Free';
        font-weight: 900;
        content: '\f102';
        font-size: 25px;
        color: #fff;
        position: absolute;
        width: 25px;
        height: 25px;
        top: -5px;
        bottom: 0;
        right: 0;
        left: 0;
        margin: auto;
        text-align: center;
    }

    /*footer*/
    .site-footer{
        position: relative;
        margin-top: 2.4em;
        color: #fff;
    }
    .site-footer a{
        text-decoration: none;
        color: #fff;
    }
    .site-footer .top-section{
        padding: 1.6em 0.9em;
        background-color: #333;
    }
    .site-footer .top-section .flex{
        display: flex;
        justify-content: center;
    }
    .site-footer .top-section .flex .left{
        width: 50%;
        margin-left: 10vw;
    }
    .site-footer .footer-logo{
        position: relative;
        padding: 0;
        margin: 0;
        width: 100%;
        font-size: 2.2em;
        font-weight: bold;
    }
    .address{
        margin: 0.8em 0 0;
        padding: 0;
    }
    .site-footer .sns{
        margin: 1.2em 0 0 2.5em;
        padding: 0;
    }
    .site-footer .sns li{
        display: inline-block;
        margin: 0 1.2em 0 0;
        padding: 0;
        font-size: 2.2em;
    }
    .site-footer .sns li:last-child{
        margin-right: 0;
    }
    .site-footer .sns li a{
        transition: all 0.5s;
    }
    .site-footer .sns li a:hover{
        opacity: 0.7;
        transform:scale(1.2, 1.2)
    }
    .site-footer .top-section .flex .right{
        display: flex;
        width: 70%;
    }
    .navi-section{
        display: flex;
        flex-direction: column;
        width: 50%;
        margin-left: 6vw;
    }
    .title-section{
        width: 15vw;
        min-width: 30px;
        padding: 0.5rem 2rem;
        border-top: 3px solid white;
        border-bottom: 3px solid white;
        text-align: center;
        margin: 1em 0;
    }
    .site-footer .navi-list{
        margin: 0;
        padding: 0;
        list-style: none;
        line-height: 2em;
    }
    .site-footer .navi-list li{
        margin: 0.5em 0 0 0;
        padding: 0;
    }
    .site-footer .navi-list li:first-child{
        margin: 0;
    }
    .site-footer .navi-list a:hover,
    .site-footer .title-list a:hover{
        text-decoration: none;
        opacity: 0.7;
    }
    .site-footer .title-list{
        margin: 0 0 0.9em 0;
        padding: 0;
        font-weight: bold;
        line-height: 2em;
    }
    .site-footer .bottom-section{
        display: flex;
        justify-content: center;
        padding: 1.6em 0.9em;
        background: #222;
    }
    .site-footer .copyright{
        width: 90%;
        margin: 0;
        padding: 0;
        text-align: center;
    }  
}









@media screen and (min-width:768px) and (max-width:1023px) {
    /*whole*/
    *{
        font-family: 'Noto Sans JP', sans-serif;
    }
    html, body{
        margin:0;
        padding:0;
    }
    body{
        position: relative;
    }
    .flex-column{
        flex-direction: column;
    }

    /*header*/
    .site-header{
        width: 100%;
        top: 0;
        transition: .5s;
        z-index: 999;
    }
    .header-logo img{
        height: 20px;
        width: auto;
    }
    .nav{
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .nav li:last-child{
        margin-right:1.5em;
        padding: 0.5em;
    }
    .nav_item{
        list-style-type: none;
        font-size:1.1em;
        color: black;
    }
    .nav_item img{
        height: 4vh;
    }
    .btn{
        border: 1px solid #222;
        padding: 0.6em;
        position: relative;
        overflow: hidden;
        text-decoration: none;
        display: inline-block;
        text-align: center;
        outline: none; 
        transition: ease .2s;
    }
    .btn span {
        position: relative;
        z-index: 3;
        color:#333;
    }
    .btn:hover span{
        color:#fff;
    }
    .bgleft:before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        z-index: 2;
        background:#333;
        width: 100%;
        height: 100%;
        transition: transform .6s cubic-bezier(0.8, 0, 0.2, 1) 0s;
        transform: scale(0, 1);
        transform-origin: right top;
    }
    .bgleft:hover:before{
        transform-origin:left top;
        transform:scale(1, 1);
    }

    /*slideshow*/
    #slideshow{
        width: 100%;
        height: 25vh;
    }
    .background{
        max-height: 40em;
        overflow: hidden;
    }

    /*title of AHS*/
    .title_ahs{
        width: 90%;
        margin: 1.5em auto;
    }
    .image_ahs{
        width: 70%;
        margin: 0 auto;
    }
    .image_ahs img{
        width: 100%;
    }
    .cap_ahs{
        width: 100%;
        margin: 1.0em 0;
        font-size: 1.1em;
        line-height:1.6em;
        text-align: center;
    }

    /************contents************/
    .wrap{
        width: 98%;
        margin: 0 auto;
        display: flex;
    }
    /*********left*********/
    /*sidebar*/
    .side{
        width: 35%;
    }
    .sidebar{
        width: 75%;
        margin: 1.0em auto;
        padding: 1.0em;
        background-color: #F0F8FF;
    }
    .contents_sidebar{
        width: 95%;
        margin: 0 auto;
        list-style-type: none;
    }
    .contents_sidebar li:not(:last-child){
        border-bottom: 1px dotted #CCCCCC;
    }
    .contents_sidebar_item{
        position: relative;
        margin-left: 1.0em;
        padding: 1.0em;
        font-size: 1.0em;
        color: #333;
        transition: all .5s;
    }
    .contents_sidebar_item::before {
        content:"";
        display:inline-block;
        width: 5px;
        height: 30px;
        background-color: #99CFFF;
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        left: -10px;
        border-radius: 30px;
    }
    .contents_sidebar_item:hover{
        background-color: #E6F3FF;
        color: #000000;
        cursor: pointer;
    }
    .contents_sidebar_item:active{
        background-color: #B3DAFF;
        color: #000000;
        cursor: pointer;
    }
    /*********right*********/
    .main{
        width: 65%;
        margin: 0.5em;
    }
    .topic{
        width: 90%;
        margin: 0.5em auto;
    }
    .title_topic{
        width: 100%;
        margin: 1.5em auto;
    }
    .image_topic{
        width: 65%;
    }
    .image_topic img{
        width: 100%;
    }
    .summary_title_topic{
        width: 98%;
        margin: 1.0em auto;
        font-size: 1.0em;
        line-height: 1.7em;
    }
    .contents_topic{
        width: 100%;
        margin: 1.5em auto;
    }
    .contents_topic_item{
        width: 100%;
        margin: 0.5em auto;
    }
    .headline{
        width: 98%;
        margin: 0 auto;
        padding: 0.5em;
        border-left: 6px solid #27acd9;
        border-bottom: 1px solid #ddd;
        font-size: 1.2em;
        font-weight: 800;
    }
    .cap_headline{
        width: 95%;
        margin: 1.0em auto;
        font-size: 1.0em;
        line-height: 1.6em;
    }
    .contents_time-schedule{
        width: 98%;
        margin: 0.5em auto;
    }
    .time-schedule{
        display: flex;
    }
    .time-schedule_item{
        width: 95%;
        margin: 0.5em auto;
    }
    .title_time-schedule{
        width: 70%;
        margin: 1.0em auto;
        font-size: 1.1em;
        font-weight: 600;
        text-align: center;
    }
    .schedule{
        list-style: none;
        margin: 0 0 0 0.5em;
        padding-left: 20px;
        border-left: 5px solid #6495ED;
        box-sizing: border-box;
        position: relative;
        left: 60px;
    }
    .schedule li{
        width: 80%;
        margin: 0 0;
        padding: 1.0em 0;
    }
    .time{
        width: 5em;
        display: inline-block;
        margin-left: -8em;
        padding: 0 0 5px;
        margin-top: 15px;
        vertical-align: top;
        position: relative;
        text-align: right;
        box-sizing: border-box;
        font-size: 1.0em;
    }
    .time::after{
        content: "";
        position: absolute;
        right: -35px;
        top: 0;
        background: #6495ED;
        width: 20px;
        height: 20px;
        border-radius: 10px;
    }
    .schedule_box{
        display: inline-block;
        width: 100%;
        margin-left: 2.7em;
        padding: 1.0em;
        vertical-align: middle;
        background: #efefef;
        box-sizing: border-box;
        border-radius: 6px;
    }
    .schedule_box p{
        font-size: 1.0em;
        line-height: 1.5em;
    }
    .note_headline{
        width: 95%;
        margin: 0.5em auto;
        line-height: 1.5em;
        font-size: 1.0em;
    }
    .note_headline p::before{
        content: "※";
    }

    /*smooth scroll*/
    .topbtn{
        right: 40px;
        background: #333;
        opacity: 0.6;
        border-radius: 50%;
        display: block;
        width: 70px;
        height: 70px;
        text-decoration: none;
    }
    .topbtn::before{
        font-family: 'Font Awesome 5 Free';
        font-weight: 900;
        content: '\f102';
        font-size: 25px;
        color: #fff;
        position: absolute;
        width: 25px;
        height: 25px;
        top: -5px;
        bottom: 0;
        right: 0;
        left: 0;
        margin: auto;
        text-align: center;
    }

    /*footer*/
    .site-footer{
        position: relative;
        color: #fff;
    }
    .site-footer a{
        text-decoration: none;
        color: #fff;
    }
    .site-footer .top-section{
        padding: 1.6em 0;
        background-color: #333;
    }
    .site-footer .top-section .flex{
        display: flex;
        justify-content: center;
    }
    .site-footer .top-section .flex .left{
        width: 50%;
        margin-left: 8vw;
    }
    .site-footer .footer-logo{
        position: relative;
        padding: 0;
        margin: 0;
        width: 100%;
        font-size: 2.2em;
        font-weight: bold;
    }
    .address{
        margin: 0.8em 0 0;
        padding: 0;
        line-height: 1.5em;
    }
    .site-footer .sns{
        margin: 1.2em 0 0 2.5em;
        padding: 0;
    }
    .site-footer .sns li{
        display: inline-block;
        margin: 0 1.2em 0 0;
        padding: 0;
        font-size: 2.2em;
    }
    .site-footer .sns li:last-child{
        margin-right: 0;
    }
    .site-footer .sns li a{
        transition: all 0.5s;
    }
    .site-footer .sns li a:hover{
        opacity: 0.7;
        transform:scale(1.2, 1.2)
    }
    .site-footer .top-section .flex .right{
        display: flex;
        width: 70%;
    }
    .navi-section{
        display: flex;
        flex-direction: column;
        width: 50%;
        margin-left: 6vw;
    }
    .title-section{
        width: 19vw;
        min-width: 30px;
        padding: 0.5rem 2rem;
        border-top: 3px solid white;
        border-bottom: 3px solid white;
        text-align: center;
        margin: 1em 0;
    }
    .site-footer .navi-list{
        margin: 0;
        padding: 0;
        list-style: none;
        line-height: 2em;
        font-size: 0.8em;
    }
    .site-footer .navi-list li{
        margin: 0.5em 0 0 0;
        padding: 0;
    }
    .site-footer .navi-list li:first-child{
        margin: 0;
    }
    .site-footer .navi-list a:hover,
    .site-footer .title-list a:hover{
        text-decoration: none;
        opacity: 0.7;
    }
    .site-footer .title-list{
        margin: 0 0 0.9em 0;
        padding: 0;
        font-weight: bold;
        line-height: 2em;
    }
    .site-footer .bottom-section{
        display: flex;
        padding: 1.6em 0.9em;
        background: #222;
    }
    .site-footer .copyright{
        width: 90%;
        margin: 0;
        padding: 0;
        text-align: center;
    }
}









@media screen and (max-width:767px) {
    /*whole*/
    *{
        font-family: 'Noto Sans JP', sans-serif;
    }
    html, body{
        margin:0;
        padding:0;
    }
    body{
        position: relative;
    }
    .flex-column{
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    /*header*/
    .site-header{
        width: 100%;
        margin: 0.5em 0;
        top: 0;
        transition: .5s;
        z-index: 999;
    }
    .nav{
        display: flex;
        align-items: center;
        justify-content: flex-start;
    }
    .nav li:last-child{
        display: none;
    }
    .nav_item{
        list-style-type: none;
        font-size:1.3em;
        color: black;
    }
    .nav_item img{
        height: 5vh;
    }

    /*toggle for smartphone*/
    #nav-toggle{
        display: block;
        position: fixed;
        z-index: 400;
        top: 10px;
        right: 10px;
        width: 39px;
        height: 39px;
        background-color: #666;
        border-radius: 5px;
    }
    #nav-toggle > div {
        position: relative;
        width: 32px;
    }
    #nav-toggle span {
        width: 25px;
        height: 2px;
        left: 7px;
        display: inline-block;
        background: #fff;
        position: absolute;
        transition: .35s ease-in-out;
    }
    #nav-toggle span:nth-child(1) {
        top: 9px;
    }
    #nav-toggle span:nth-child(2) {
        top: 18px;
    }
    #nav-toggle span:nth-child(3) {
        top: 27px;
    }
    .open {
        overflow: hidden;
    }
    .open #overlay {
        display: block;
    }
    .open .sidebar {
        transform: translate3d(-280px,0,0);
    }
    .open #nav-toggle span:nth-child(1) {
        top: 18px;
        transform: rotate(45deg);
    }
    .open #nav-toggle span:nth-child(2) {
        width: 0;
        left: 50%;
    }
    .open #nav-toggle span:nth-child(3) {
        top: 18px;
        transform: rotate(-45deg);
    }
    #overlay {
        z-index: 200;
        display: none;
        position: fixed;
        background: rgba(0,0,0,.6);
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
    }
    .sidebar {
        z-index: 300;
        right: -200px;
        width: 200px;
        padding-top: 60px;
        position: fixed;
        right: -300px;
        top: 0;
        height: 100%;
        width: 300px;
        color: #333;
        background: #fff;
        -webkit-transition: .35s ease-in-out;
        transition: .35s ease-in-out;
    }
    #nav-toggle {
        z-index: 400;
    }

    /*slideshow*/
    #slideshow{
        width: 100%;
        height: 20vh;
    }
    .background{
        max-height: 40em;
        overflow: hidden;
    }

    /*title of AHS*/
    .title_ahs{
        width: 98%;
        margin: 1.5em auto;
    }
    .image_ahs{
        width: 95%;
        margin: 0 auto;
    }
    .image_ahs img{
        width: 100%;
    }
    .cap_ahs{
        width: 90%;
        margin: 1.5em auto;
        font-size: 1.0em;
        line-height:1.6em;
    }

    /************contents************/
    .wrap{
        width: 90%;
        margin: 0 auto;
        display: flex;
        justify-content: center;
    }
    /*********left*********/
    /*sidebar*/
    .side{
        display: block;
    }
    .sidebar{
        width: 72%;
        margin: 0 auto;
        background-color: #F0F8FF;
        overflow: scroll;
        left: 100%;
    }
    .contents_sidebar{
        width: 95%;
        list-style-type: none;
        padding: 0.5em;
    }
    .contents_sidebar li:not(:last-child){
        border-bottom: 1px dotted #CCCCCC;
    }
    .contents_sidebar_item{
        position: relative;
        margin: 0.1em;
        padding: 0.7em;
        font-size: 1.0em;
        font-weight: bold;
        color: #333;
        transition: all .5s;
    }
    .contents_sidebar_item:active{
        background-color: #B3DAFF;
        color: #000000;
        cursor: pointer;
    }
    /*********right*********/
    .main{
        width: 98%;
    }
    .topic{
        width: 95%;
        margin: 1.0em auto;
    }
    .title_topic{
        width: 100%;
        margin: 1.5em auto;
    }
    .image_topic{
        width: 85%;
    }
    .image_topic img{
        width: 100%;
    }
    .summary_title_topic{
        width: 98%;
        margin: 1.0em auto;
        font-size: 0.9em;
        line-height: 1.6em;
    }
    .contents_topic{
        width: 100%;
        margin: 1.5em auto;
    }
    .contents_topic_item{
        width: 100%;
        margin: 0.5em auto;
    }
    .headline{
        width: 98%;
        margin: 0 auto;
        padding: 0.5em;
        border-left: 6px solid #27acd9;
        border-bottom: 1px solid #ddd;
        font-size: 1.1em;
        font-weight: 800;
    }
    .cap_headline{
        width: 95%;
        margin: 1.0em auto;
        font-size: 0.9em;
        line-height: 1.6em;
    }
    .contents_time-schedule{
        width: 98%;
        margin: 0.5em auto;
    }
    .time-schedule{
        display: flex;
    }
    .time-schedule_item{
        width: 95%;
        margin: 0.5em auto;
    }
    .title_time-schedule{
        width: 70%;
        margin: 1.0em auto;
        font-size: 1.1em;
        font-weight: 600;
        text-align: center;
    }
    .schedule{
        list-style: none;
        margin: 0 0 0 0.5em;
        padding-left: 20px;
        border-left: 5px solid #6495ED;
        box-sizing: border-box;
        position: relative;
        left: 50px;
    }
    .schedule li{
        width: 80%;
        margin: 0 0;
        padding: 1.0em 0;
    }
    .time{
        width: 5em;
        display: inline-block;
        margin-left: -8em;
        padding: 0 0 5px;
        margin-top: 15px;
        vertical-align: top;
        position: relative;
        text-align: right;
        box-sizing: border-box;
        font-size: 1.0em;
    }
    .time::after{
        content: "";
        position: absolute;
        right: -35px;
        top: 0;
        background: #6495ED;
        width: 20px;
        height: 20px;
        border-radius: 10px;
    }
    .schedule_box{
        display: inline-block;
        width: 100%;
        margin-left: 2.7em;
        padding: 1.0em;
        vertical-align: middle;
        background: #efefef;
        box-sizing: border-box;
        border-radius: 6px;
    }
    .schedule_box p{
        font-size: 0.9em;
        line-height: 1.5em;
    }
    .note_headline{
        width: 95%;
        margin: 0.5em auto;
        line-height: 1.5em;
        font-size: 0.9em;
        padding-left: 1em;
        text-indent: -1em;
    }
    .note_headline p::before{
        content: "※";
    }

    /*smooth scroll*/
    .topbtn{
        right: 40px;
        background: #333;
        opacity: 0.6;
        border-radius: 50%;
        display: block;
        width: 50px;
        height: 50px;
        text-decoration: none;
    }
    .topbtn::before{
        font-family: 'Font Awesome 5 Free';
        font-weight: 900;
        content: '\f102';
        font-size: 25px;
        color: #fff;
        position: absolute;
        width: 25px;
        height: 25px;
        top: -5px;
        bottom: 0;
        right: 0;
        left: 0;
        margin: auto;
        text-align: center;
    }

    /*footer*/
    .site-footer{
        position: relative;
        margin-top: 2.4em;
        color: #fff;
    }
    .site-footer a{
        text-decoration: none;
        color: #fff;
    }
    .site-footer a:hover{
        text-decoration: underline;
    }
    .site-footer .top-section{
        padding: 1.2em;
        background: #333;
    }
    .site-footer .top-section .flex{
        display: block;
    }
    .site-footer .top-section .flex .left{
        width: 100%;
    }
    .site-footer .top-section .flex .left p{
        line-height: 1.8em;
    }
    .site-footer .footer-logo{
        font-size: 1.7em;
    }
    .address{
        font-size: 0.8em;
    }
    .site-footer .sns{
        margin: 0.5em 0 0;
        padding: 0;
    }
    .site-footer .sns li{
        display: inline-block;
        margin: 0 1em 0 0;
        padding: 0;
        font-size: 1.5em;
    }
    .site-footer .sns li:last-child{
        margin-right: 0;
    }
    .site-footer .top-section .flex .right{
        width: 100%;
    }
    .navi-section{
        display: block;
        width: 100%;
        margin: 40px 0 0;
    }
    .title-section{
        width: 40vw;
        min-width: 30px;
        padding: 0.5rem 1rem;
        border-top: 2px solid white;
        border-bottom: 2px solid white;
        text-align: center;
        margin: 1em 0;
    }
    .site-footer .navi-list{
        list-style: none;
        padding-bottom: 10px;
        border-bottom: 1px solid #444;
    }
    .site-footer .navi-list li{
        border-top: 1px solid #444;
        padding-top: 10px;
        margin-top: 10px;
        font-size: 0.8em;
    }
    .site-footer .navi-list li:first-child{
        margin: 0;
    }
    .site-footer .navi-list a:hover,
    .site-footer .title-list a:hover{
        text-decoration: none;
    }
    .site-footer .title-list{
        margin: 0 0 0.9em 0;
        padding: 0;
        font-weight: bold;
        line-height: 2em;
    }
    .site-footer .bottom-section{
        display: block;
        padding: 2.2em;
        background: #222;
    }
    .site-footer .copyright{
        width: 100%;
        text-align: center;
        font-size: 0.9em;
    }
}