@charset "utf-8";
/* CSS Document */
main {
    padding-top: 540px;
    background: top center no-repeat url(/img/link/img/link-top.png);
}
ul.link-list li {
    margin-top: 4%;
    width: 22%;
    margin-left: 4%;
    text-align: center;
}
ul.link-list li:nth-of-type(4n+1) {
    margin-left: 0;
}

ul.link-list li img {
    filter: drop-shadow(0 0 4px rgba(0,0,0,0.5));
    vertical-align: bottom;
}

@media screen and (max-width: 1023px) {
    ul.link-list li {
        width: 30%;
        margin-left: 5%;
    }
    ul.link-list li:nth-of-type(4n+1) {
        margin-left: 5%;
    }
    ul.link-list li:nth-of-type(3n+1) {
        margin-left: 0;
    }
}
@media screen and (max-width: 767px) {
    main {
    background: top 50px center / contain no-repeat url(/img/link/img/link-top-sp.png);
    padding-top: calc(100vw + 70px);
}
}
@media screen and (max-width: 499px) {
    ul.link-list li {
        width: 50%;
        padding: 0 5%;
        margin-left: 0;
        margin-top: 10%;
    }
    ul.link-list li:nth-of-type(4n+1),
    ul.link-list li:nth-of-type(3n+1) {
        margin-left: 0;
    }
}

@-moz-document url-prefix() {
    @media(min-width: 768px){
        ul.link-list li{
            margin-top: 47px;
            margin-left: 47px;
        }
    }
}