:root {
  --parent-bg: #f2f2f2;
  --parent-surface: #ffffff;
  --parent-border: #eeeeee;
  --parent-text: #222222;
  --parent-muted: #8b8b8b;
  --parent-primary: #4d7cfe;
  --parent-nav-height: 40px;
  --parent-body-width: 768px;
}

.parent-body {
  max-width: var(--parent-body-width);
  margin: auto;
  background: var(--parent-bg);
  color: var(--parent-text);
  margin-bottom: calc(var(--parent-nav-height) + env(safe-area-inset-bottom));
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

.parent-body.no-menu {
  margin-bottom: 0;
}

.parent-page {
  min-height: 100vh;
  background: var(--parent-bg);
}

.parent-header {
  background: var(--parent-surface);
  border-bottom: 1px solid var(--parent-border);
  padding: 14px 16px 12px;
  padding-top: calc(14px + env(safe-area-inset-top));
}

.parent-title {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.2;
  margin: 0;
}

.parent-content {
  padding: 16px;
}

.parent-note {
  margin: 0;
  color: var(--parent-muted);
  font-size: 13px;
}

#menu {
  border-top: 1px solid var(--parent-border);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: 0;
  padding-right: 0;
  background: var(--parent-surface);
  max-width: var(--parent-body-width);
  margin: auto;
}

#menu .row {
  margin: 0;
  padding-top: 5px;
}

#menu a {
  color: #8a8a8a;
  text-decoration: none;
  padding: 8px;
  display: block;
  font-size: 12px;
}

#menu a.active {
  color: var(--parent-primary);
}

#menu a i {
  display: block;
  margin: 0 auto;
}

#menu .menu-icon {
  font-size: 1.3rem;
  line-height: 1;
}