.sitemap-1st {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.sitemap-1st > li {
    width: 48%;
    margin-bottom: 40px;
}
.cat1 {
    font-weight: bold;
    color: #003f98;
    background-color: #edf6fa;
    margin-bottom: 1em;
    padding: 10px;
}
.sitemap-2nd {
    margin: 0 1em;
}
.sitemap-2nd > li > a {
    display: block;
    padding: 5px 5px 5px 15px;
    background-image: url(../img/arrow-right-blue.svg);
    background-size: 5px auto;
    background-position: left center;
    background-repeat: no-repeat;
}
.sitemap-3rd {
    margin: 0 0 1em 1.5em;
}
.sitemap-3rd > li > a {
    display: block;
    padding: 5px 5px 5px 15px;
    background-image: url(../img/arrow-right-gray.svg);
    background-size: 5px auto;
    background-position: left center;
    background-repeat: no-repeat;
}
@media only screen and (max-width: 768px) {
    .sitemap-1st > li {
        width: 100%;
    }
    .sitemap-2nd {
        margin: 0;
    }
    
}