body {
  font-family: sans-serif;
}

h1 {
  text-align: center;
}

.btn {
  padding: 10px 20px;
  background: #5865F2;
  color: white;
  border-radius: 8px;
  text-decoration: none;
}
.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  color: white;
  font-size: 12px;
  margin-right: 5px;
}

.tag-maintenance {
  background: #e74c3c; /* 赤 */
}

.tag-news {
  background: #3498db; /* 青 */
}

.tag-other {
  background: #f1c40f; /* 黄 */
  color: black;
}
.logo {
  position: absolute;
  top: 10px;
  left: 20px;
  width: 150px;
}

.site-title {
  display: none;
}
body {
  font-family: 'Noto Sans JP', sans-serif;
}