/* 顶栏：与主题一致居中对齐，仅叠加半透明毛玻璃条 */
#header-nav {
  justify-content: center;
  align-items: center;
  flex-wrap: nowrap;
  padding-left: max(12px, env(safe-area-inset-left));
  padding-right: max(12px, env(safe-area-inset-right));
  min-height: 48px;
  background: rgba(255, 255, 255, 0.78) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] #header-nav {
  background: rgba(28, 28, 32, 0.82) !important;
}

#header-nav:hover {
  background: rgba(255, 255, 255, 0.9) !important;
}

[data-theme="dark"] #header-nav:hover {
  background: rgba(32, 32, 38, 0.92) !important;
}

/* 略收紧导航间距，顶栏更扁一些 */
.main-nav-link-wrap {
  padding: 0 8px;
}

.main-nav-link {
  padding: 14px 0;
}

.main-nav-icon {
  padding: 14px 3px 14px 0;
}

.nav-icon {
  padding: 12px 8px;
}

#main-nav {
  margin-right: 2px;
}

#sub-nav,
#i18n-nav {
  flex-shrink: 0;
}

/* 与本地主题补丁保持一致：隐藏评论系统切换条（含 giscus 标签） */
.comment-selector {
  display: none !important;
}