body.seo-page {
  background:
    radial-gradient(ellipse 90% 55% at 50% -15%, rgba(225, 29, 72, 0.08), transparent 55%),
    linear-gradient(180deg, #fff 0%, var(--void) 40%, #eef3f9 100%);
  min-height: 100vh;
}
.seo-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(255,255,255,.9);
  position: sticky;
  top: 0;
  z-index: 10;
}
.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
}
.seo-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
}
.seo-nav a {
  color: var(--mute);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid transparent;
}
.seo-nav a:hover,
.seo-nav a[aria-current="page"] {
  color: var(--accent-strong);
  border-color: var(--line);
  background: var(--panel);
}
.seo-main {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 28px 20px 48px;
}
.seo-main h1 {
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  line-height: 1.25;
}
.seo-lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  margin: 0 0 20px;
}
.seo-cta {
  display: inline-flex;
  align-items: center;
  padding: 12px 20px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff !important;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(225, 29, 72, 0.25);
}
.seo-cta:hover { background: var(--accent-strong); }
.seo-main section { margin-top: 28px; }
.seo-main h2 { font-size: 18px; margin: 0 0 10px; }
.seo-main h3 { font-size: 15px; margin: 16px 0 6px; }
.seo-main ul, .seo-main ol { padding-left: 1.25rem; line-height: 1.7; }
.seo-main a { color: var(--accent); }

.seo-hero {
  padding: 4px 0 8px;
}
.seo-hero h1 {
  margin: 0 0 6px;
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 800;
  line-height: 1.3;
}
.seo-hero p {
  margin: 0;
  color: var(--mute);
  font-size: 13px;
  line-height: 1.55;
  max-width: 62ch;
}
.seo-hero-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  font-size: 12px;
}
.seo-hero-nav a {
  color: var(--mute);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.8);
}
.seo-hero-nav a:hover { color: var(--accent-strong); border-color: rgba(225,29,72,.25); }

@media (max-width: 640px) {
  .seo-topbar { flex-direction: column; align-items: flex-start; }
}