/* ----------------------------------------------- */
/* Common Part for all pages of header and settings. */
/* ----------------------------------------------- */

html { 
    color: #000;
    background: #fff;
    font-size : 100% ;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

header{
    width: 100%;
    height: 12vh;
}

nav{
    width: 100%;
    height: 120px;
    padding: 0px 120px 0;
    display: flex;
    position: fixed;
    text-align: center;
    background-color: #333;
    z-index: 1000;
}

.home-button{
    width: 120px;
    height: auto;
    margin: 0 15px 0 0;
    padding: 0 0 10px ;
    text-align: center;
}

nav ul{
    width: 100%;
    margin-right: 3%;
    overflow-x: auto;
    white-space: nowrap;
}

nav ul li{
    display: inline-block;
    list-style: none;
    margin: 50px 20px 0px;
    font-size: 1.5rem;
    
}

nav ul li a{
    text-decoration: none;
    color: white;
    border-bottom: 1px double white;
}


/* ---------------------------------- */
/* css codes for main page begins here */
/* ---------------------------------- */
.mv{
    margin: auto;
    width: 80rem;
    height: 40rem;
    background-color: black;
    position: relative;
    border: 1px solid black;
    box-sizing: border-box;
    margin-top: 3%;
    margin-bottom: 5%;
}

.item{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    animation: img-change 15s infinite;
    opacity: 0;
}
.item:nth-child(1){
    animation-delay: 0s;
}
.item:nth-child(2){
    animation-delay: 5s;
}
.item:nth-child(3){
    animation-delay: 10s;
}

.item img{
    width: 100%;
    height: 100%;
    object-fit: contain;
}
@keyframes img-change{
    0%{
        opacity: 0;
    }
    10%{
        opacity: 1;
    }
    20%{
        opacity: 1;
    }
    30%{
        opacity: 1;
    }
    40%{
        opacity: 0;
    }
    100%{
        opacity: 0;
    }
}



.hist{
    display: flex;
    flex-direction: column;
    margin: 0 auto 0 auto;
    margin-bottom: 3%;
    width: 80rem;
    
}
.hist h2{
    padding: 0.1rem 0;
    margin-bottom: 0.2rem;
    border-bottom: 6px double #b2d5de;
    color: black;
    font-weight: bold;
    font-size: 2rem;
}
.hist p{
    font-size: 1.3rem;
}

.title{
    margin: 3% auto 0 auto;
    width: 80rem;
    font-size: 2rem;
    border-bottom: 6px double #b2d5de;
}

.new-article{
    display: flex;
    color: black;
    justify-content: space-around;
    align-items: baseline;
    margin: 3% auto 0 auto;
    padding: 3rem ;

    width: 80rem;
    text-align: center;

}
.new-article article{
    padding: 6rem 0.5rem;
    margin: 0 3%;
    background: white;
    box-shadow: 0px 0px 0px 10px #d6ebff;
    border: dashed 2px thistle;
}
.new-article article h2{
    font-size: 2rem;
    border-bottom: 3px double black;
    text-align: left;
    
}

.new-article article p{
    font-size: 1.2rem;
    margin: 0; 
    padding: 0;
    padding: 10% 0;
}

.new-article a{
    font-size: 2rem;
    color: #000;
}


/* ----------------------------------------------- */
/* css codes for next assemble page begins here */
/* ----------------------------------------------- */
.guide{
    padding: 5%;
    margin: 0 auto 0 auto;
    margin-top: 3%;
    width: 100rem;
    font-size: 1.2rem;
}
.guide h2{
    text-align: left;
    margin: 0 0 3% 0;
    border-bottom: 6px double #b2d5de;
}
.guide p{
    text-align: center;
    font-size: 1.5rem;
}

.guide2{
    display: flex;
    justify-content: space-around;
    margin: 0 auto 0 auto;
    width: 100rem;
    font-size: 1.2rem;
}
.guide2 ul{
    margin: auto 0 auto 0;
}
.guide2 ul li{
    padding-top: 5%;
    margin: auto 0 auto 0;
}


/* ----------------------------------------------- */
/* css codes for detail of sekijo fuk page begins here */
/* ----------------------------------------------- */
.detail{
    padding: 5%;
    margin: 0 auto 0 auto;
    margin-top: 3%;
    width: 90rem;
    font-size: 1.2rem;
}
.detail h2{
    text-align: left;
    margin: 3% 0 1% 0;
    border-bottom: 6px double #b2d5de;
}



/* ----------------------------------------------- */
/* css codes for detail of kaisoku page begins here */
/* ----------------------------------------------- */
.rule{
    padding: 5%;
    margin: 0 auto 0 auto;
    margin-top: 3%;
    width: 90rem;
    font-size: 1.2rem;
}
.rule h2{
    text-align: left;
    margin: 3% 0 1% 0;
    border-bottom: 6px double #b2d5de;
}
/* ----------------------------------------------- */
/* css codes for detail of member page begins here */
/* ----------------------------------------------- */



/* ----------------------------------------------- */
/* Common Part for all pages of footer. */
/* ----------------------------------------------- */

footer{
    width: 100vw;
    color: white;
    background-color: #000;
    z-index: 1000;
}

.foot{
    display: flex;
    width: 100rem;
    margin: 3% auto 0 auto;
    padding: 3%;
    margin-bottom: 15%;
background-color: #000;
    
}
.foot h2{
    margin-top: 2rem;
    margin-bottom: 2rem;
    border-bottom: 3px dotted #b2d5de;
    font-weight: bold;
    font-size: 26px;
background-color: #000;
}
.foot-content{
    display: flex;
    justify-content: space-between;
    padding-left: 5%;
    text-align: left;
    font-size:1.2rem;
background-color: #000;
}
.foot-section{
    width: 80%;
    display: flex;
    padding: 5%;
    flex-direction: column;
background-color: #000;
}

.foot-content a{
    color: white;
    flex-direction: column;
    padding-top: 0;
    padding-bottom: 0;
    margin: 0;
background-color: #000;
}

.cpright{
width: 100rem;
background-color: #000;
    margin: 0 5% 0 auto;
    padding-bottom: 3%;
    text-align: right;
}