body {
  margin: 40px;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

.menu a {
  color: #475569;
  text-decoration: none;
}

.menu > a {
  margin-right: 16px;
  font-weight: 600;
}

.menu a:hover {
  color: #2563eb;
}

.list li:first-child {
  color: #b45309;
  font-weight: 700;
}