/* eranova-web 全站统一导航栏（所有页面共用） */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #0f172a;
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 16px 34px;
}
.site-nav .brand {
  font-weight: 600;
  font-size: 24px;
  color: #ffffff;
  text-decoration: none;
}
.site-nav a {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 21px;
}
.site-nav a:hover { color: #ffffff; }
.site-nav a.active { color: #ffffff; font-weight: 600; }

@media (max-width: 600px) {
  .site-nav { flex-wrap: wrap; gap: 18px; padding: 15px 24px; }
  .site-nav a { font-size: 19px; }
}