@charset "UTF-8";
header {
  background-image: url("../image/top-bg5.webp");
}
.mobile-top {
  display: none;
}
nav.mobile {
  display: none;
}
main ul {
  margin: 0;
  padding: 0;
  margin-top: 20px;
  list-style-type: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  width: 100%;
}
main ul li {
  width: calc(50% - 5px);
  margin-bottom: 20px;
  border: 1px solid #333;
}
main ul li a {
  padding: 20px 5px;
  display: block;
  text-decoration: none;
  color: #333;
}
main ul li a:hover {
  background-color: #696969;
  color: #fff;
}
h3 {
  margin-bottom: 0;
}

@media screen and (max-width: 640px) {
  header {
    display: none;
  }
  .mobile-top {
    display: block;
  }
  .mobile-top {
    margin: 8px 0;
    width: 100%;
  }
  .mobile-top img {
    width: 100%;
  }
  nav.mobile {
    display: block;
  }
  main li {
    width: calc(100% - 5px);
  }
  .mobile li {
    display: inline-block;
    width: calc(100% / 6 - 5px);
  }
  .mobile ul {
    border: none;
    box-sizing: border-box;
  }
  .contents nav {
    display: none;
  }
}