body {
  font-family: 'Shuei NijimiMGo B JIS2004', sans-serif;
}
#yodogawa {
  font-size: 1.1875rem;
}
.content_wrap {
  box-sizing: border-box;
}
.index_nav_list .bd_t {
  border: none;
}
#kv {
  opacity: 0;
  aspect-ratio: 12 / 8;
}
@media (max-width: 640px) {
  .content_wrap {
    padding-inline: 8px;
    width: calc(100% - 28px);
    margin-inline: auto;
  }
  #kv {
    aspect-ratio: 75 / 105;
  }
}