.sitemap_contents {
  display: flex;
  flex-wrap: wrap;
}

.sitemap_contents ul {
  width: 25%;
  margin-bottom: 20px;
  margin-left: 25%;
}

.sitemap_contents ul:nth-child(even) {
  margin-left: 10%;
}

.depth2 {
  margin-left: 10px;
}

.depth2 a {
  color: #9ba6af;
}

.depth2 a:hover {
  border-bottom: 1px solid #9ba6af;
}

@media screen and (max-width: 768px) {
  .sitemap_contents ul {
    width: 100%;
    margin: 0 0 10px 0;
    padding: 0 10%;
  }
  .sitemap_contents ul:nth-child(even) {
    margin-left: 0;
  }
}