*{
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

header{
    display: block;
    z-index: 2;
}

.toplogo{
    height: 150px;
    width: 100%;
    background-color: #fff;
    display: block;
}

.toplogo img{
    height: 100%;
    width: max-content;
    margin: auto;
    display: block;
}

.img-menu{
    width: 100%;
    height: min-content;
    display: flex;
}

.img{
    position: relative;
    width: 100%;
    height: 100%;
}

.img a:hover{
    opacity: 0.6;
}

.img img{
    display: block;
    height: 100%;
    width: 100%;
}

.img h1{
    position: absolute;
    top: 5%;
    left: 10%;
    color: #fff;
    background-color: #000000cc;
    font-size: min(5vw,30px);
}

.menu{
    width: 100%;
    background-color: #5ac8ff;
    display: grid;
    grid-template-columns: 50% 50%;
}

.menu a{
    background-color: #00aaff;
    margin: 1px;
    position: relative;
}

.menu a:hover{
    opacity: 0.5;
}

.menu a *{
    display: block;
    position: absolute;
    top: 0%;
    left: 0%;
    bottom: 0%;
    right: 0%;
    height: 40%;
    width: 60%;
    margin: auto;
}

main{
    display: block;
    position: relative;
    background-color: #00aaff;
    padding-bottom: 30px;
}

.title{
    padding-top: 20px;
    display: block;
    text-align: center;
}

.title h1{
    font-weight: 100;
    color: #fff;
}

.title h1 span{
    border-bottom: 1px #fff solid;
    padding: 0 8px;
}

.title p{
    margin: 20px 0;
    color: #fff;
}

.main-links{
    margin-top: 30px;
}

.main-links a{
    display: block;
    width: 30vw;
    min-width: 250px;
    position: relative;
    top: 0;
    background-color: #5fcaff;
    padding: 20px;
    margin: 10px auto;
    text-align: center;
    color: #fff;
    border-radius: 20px;
    border-bottom: #000 4px solid;
    box-shadow: 5px 5px 5px #000;
    text-decoration: none;
    margin-bottom: 20px;
}

.main-links a:hover{
    box-shadow: 2px 2px 2px #000;
}


.main-links span{
    display: block;
    font-size: smaller;
    color: #000;
}

.sns-links{
    margin-top: 100px;
    text-align: center;
    margin-bottom: 70px;
}

.sns-links a{
    display: block;
    width: 100%;
    background-color: #5ac8ff;
    padding: 10px 0;
}

.sns-links a:hover{
    opacity: 0.7;
}


.sns-links a img{
    height: 50px;
}

.twitter iframe{
    margin: 20px auto;
}

.sponsor{
    margin: 20px 0;
}

.sponsor a{
    display: block;
    font-size: 30px;
    color: #fff;
    text-decoration: none;
    text-align: center;
    background-color: #5ac8ff;
    padding: 20px 0;
}

.sponsor a:hover{
    opacity: 0.7;
}

.policy-links{
    display: grid;
    grid-template-columns: 50% 50%;
    margin: 20px 0;
}

.policy-links a{
    text-align: center;
    color: #fff;
    font-size: min(5vw,30px);
    padding: 15px 0;
    text-decoration: none;
}

.policy-links a:hover{
    opacity: 0.7;
}

.other-links{
    margin: 20px 0;
    display: block;
}

.other-links a{
    display: block;
    width: 100%;
    text-align: center;
    color: #fff;
    background-color: #5ac8ff;
    text-decoration: none;
    font-size: 30px;
    padding: 20px 0;
}

.other-links a:hover{
    opacity: 0.7;
}

footer{
    background-color: #00aaff;
    text-align: center;
    color: #fff;
    font-size: small;
    padding-bottom: 10px;
}

/*以下スマートデバイス用*/
@media screen and (max-width: 751px) {
    .img-menu{
        flex-flow: column;
    }

    .menu{
        height: 300px;
    }
}