:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #10171f;
  color: #f7fff7;
}

* { box-sizing: border-box; }
body { margin: 0; background: #10171f; color: #f7fff7; }
a { color: #b7ff4a; }
.seo-page { min-height: 100vh; }
.seo-nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px max(22px, calc((100vw - 980px) / 2)); border-bottom: 1px solid #31404b; }
.seo-nav strong { color: #b7ff4a; font-size: 1.15rem; }
.seo-nav div { display: flex; gap: 18px; }
.seo-main { width: min(100% - 44px, 820px); margin: 0 auto; padding: 58px 0 80px; }
.seo-main h1 { margin: 0 0 20px; font-size: clamp(2.4rem, 8vw, 5rem); line-height: 1; }
.seo-main h2 { margin-top: 38px; color: #b7ff4a; }
.seo-main p, .seo-main li { color: #d7e1dc; line-height: 1.7; }
.seo-main li + li { margin-top: 10px; }
.seo-cta { display: inline-block; margin-top: 20px; padding: 12px 18px; border-radius: 6px; background: #b7ff4a; color: #07170c; font-weight: 800; text-decoration: none; }