.seo-landing {
  --seo-black: #0b0f14;
  --seo-ink: #171a1d;
  --seo-paper: #f2f0eb;
  --seo-white: #fbfaf7;
  --seo-line: #cbc9c2;
  --seo-muted: #686a6b;
  --sans: 'Instrument Sans', system-ui, sans-serif;
  color: var(--seo-ink);
  background: var(--seo-white);
}
.seo-landing .topbar { display: none; }
.seo-landing .site-header {
  background: var(--seo-black);
  color: #fff;
  border: 0;
}
.seo-landing .header-inner {
  width: min(1320px, calc(100% - 3rem));
  padding: .7rem 0;
}
.seo-landing .logo-name {
  color: #fff;
  font-family: 'Instrument Sans', sans-serif;
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -.045em;
}
.seo-landing .nav { gap: 1.3rem; font-size: .72rem; }
.seo-landing .nav a:not(.btn) { border: 0; opacity: .68; }
.seo-landing .nav .btn {
  padding: .56rem .85rem;
  border: 1px solid #fff;
  border-radius: 0;
  background: #fff;
  color: var(--seo-black);
  box-shadow: none;
  font-size: .7rem;
}

.seo-hero {
  padding: 108px 0 66px;
  background: var(--seo-black);
  color: #fff;
}
.seo-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
  gap: 9vw;
  align-items: end;
}
.seo-crumb,
.seo-label {
  display: block;
  margin-bottom: 24px;
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.seo-crumb { color: rgba(255,255,255,.62); }
.seo-hero h1 {
  max-width: 850px;
  margin: 0;
  color: #fff;
  font-size: clamp(3.1rem, 5.6vw, 5.7rem);
  line-height: .98;
  font-weight: 500;
  letter-spacing: -.035em;
}
.seo-hero-intro {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.3);
}
.seo-hero-intro p {
  margin: 0 0 28px;
  color: rgba(255,255,255,.72);
  font-size: .92rem;
  line-height: 1.65;
}
.seo-landing .corp-button {
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  gap: 36px;
  min-width: 210px;
  padding: .78rem .9rem;
  border: 1px solid #fff;
  border-radius: 0;
  background: #fff;
  color: var(--seo-black);
  font-size: .69rem;
  font-weight: 600;
}

.seo-meta {
  display: grid;
  grid-template-columns: 1fr 1.5fr auto;
  gap: 28px;
  padding-top: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--seo-line);
  color: var(--seo-muted);
  font-size: .62rem;
  letter-spacing: .04em;
}
.seo-layout {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(260px, 340px);
  gap: 9vw;
  align-items: start;
  padding-top: 70px;
  padding-bottom: 95px;
}
.seo-answer {
  margin-bottom: 70px;
  padding: 34px 38px;
  border-top: 1px solid var(--seo-ink);
  border-bottom: 1px solid var(--seo-line);
  background: var(--seo-paper);
}
.seo-answer .seo-label { margin-bottom: 16px; }
.seo-answer p {
  margin: 0;
  font: 500 1.45rem/1.42 var(--serif);
}
.seo-section {
  position: relative;
  padding: 0 0 65px 72px;
  margin-bottom: 65px;
  border-bottom: 1px solid var(--seo-line);
}
.seo-number {
  position: absolute;
  top: 7px;
  left: 0;
  font-size: .65rem;
  letter-spacing: .12em;
}
.seo-section h2,
.seo-faq h2,
.seo-sources h2 {
  margin: 0 0 28px;
  color: var(--seo-ink);
  font-size: clamp(2rem, 3.3vw, 3.2rem);
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: -.025em;
}
.seo-section p,
.seo-section li {
  color: #414446;
  font-size: .95rem;
  line-height: 1.75;
}
.seo-section p + p { margin-top: 20px; }
.seo-section ul { margin: 24px 0; padding-left: 20px; }
.seo-section li { margin: 8px 0; }
.seo-section a,
.seo-sources a {
  border-bottom: 1px solid;
  color: var(--seo-ink);
}

.seo-aside {
  position: sticky;
  top: 100px;
}
.seo-aside-card {
  padding: 30px;
  border: 1px solid var(--seo-line);
  background: var(--seo-paper);
}
.seo-aside-card h2 {
  margin: 0 0 20px;
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.08;
}
.seo-aside-card > p {
  color: var(--seo-muted);
  font-size: .78rem;
  line-height: 1.65;
}
.seo-aside-card ul {
  margin: 24px 0;
  border-top: 1px solid var(--seo-line);
}
.seo-aside-card li {
  display: flex;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--seo-line);
  font-size: .7rem;
}
.seo-aside-card svg { width: 14px; flex: 0 0 auto; }
.seo-aside-card > a {
  display: inline-block;
  padding-bottom: 3px;
  border-bottom: 1px solid;
  font-size: .7rem;
  font-weight: 600;
}

.seo-faq { padding-bottom: 70px; }
.seo-faq details { border-top: 1px solid var(--seo-line); }
.seo-faq details:last-child { border-bottom: 1px solid var(--seo-line); }
.seo-faq summary {
  padding: 18px 34px 18px 0;
  font: 500 1.13rem/1.35 var(--serif);
}
.seo-faq details p {
  max-width: 650px;
  margin: 0;
  padding: 0 0 20px;
  color: var(--seo-muted);
  font-size: .85rem;
}
.seo-sources {
  padding: 40px 0 0;
  border-top: 1px solid var(--seo-ink);
}
.seo-sources h2 { font-size: 1.8rem; }
.seo-sources li {
  margin: 9px 0;
  color: var(--seo-muted);
  font-size: .72rem;
}
.seo-related {
  padding: 72px 0 95px;
  border-top: 1px solid var(--seo-line);
}
.seo-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--seo-line);
}
.seo-related-grid a {
  position: relative;
  min-height: 190px;
  padding: 26px 45px 26px 0;
  border-right: 1px solid var(--seo-line);
}
.seo-related-grid a + a { padding-left: 26px; }
.seo-related-grid a:last-child { border-right: 0; }
.seo-related-grid strong {
  display: block;
  margin-bottom: 20px;
  font: 500 1.55rem/1.15 var(--serif);
}
.seo-related-grid span {
  display: block;
  color: var(--seo-muted);
  font-size: .75rem;
  line-height: 1.55;
}
.seo-related-grid b {
  position: absolute;
  right: 18px;
  bottom: 22px;
  font-weight: 400;
}
.seo-final {
  padding: 85px 0;
  background: var(--seo-black);
  color: #fff;
}
.seo-final-grid {
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 9vw;
  align-items: end;
}
.seo-final h2 {
  margin: 0;
  color: #fff;
  font-size: clamp(2.8rem, 5vw, 5rem);
  line-height: .98;
  font-weight: 500;
}
.seo-final p {
  margin: 0 0 24px;
  color: rgba(255,255,255,.65);
  font-size: .82rem;
}
.seo-landing .site-footer {
  border-top: 1px solid rgba(255,255,255,.12);
  background: var(--seo-black);
}

@media (max-width: 900px) {
  .seo-hero-grid,
  .seo-layout,
  .seo-final-grid { grid-template-columns: 1fr; gap: 45px; }
  .seo-aside { position: static; }
  .seo-related-grid { grid-template-columns: 1fr; }
  .seo-related-grid a,
  .seo-related-grid a + a {
    min-height: 130px;
    padding: 25px 45px 25px 0;
    border-right: 0;
    border-bottom: 1px solid var(--seo-line);
  }
}

@media (max-width: 780px) {
  .seo-landing .site-header { position: sticky; }
  .seo-landing .header-inner { width: min(100% - 2rem, 1320px); }
  .seo-landing .nav { background: var(--seo-black); font-size: 1rem; }
  .seo-hero { padding: 76px 0 48px; }
  .seo-hero h1 { font-size: 3.15rem; }
  .seo-meta { grid-template-columns: 1fr; gap: 7px; }
  .seo-layout { padding-top: 45px; padding-bottom: 65px; }
  .seo-answer { padding: 26px 22px; margin-bottom: 55px; }
  .seo-answer p { font-size: 1.25rem; }
  .seo-section { padding: 0 0 48px 38px; margin-bottom: 50px; }
  .seo-section h2 { font-size: 2.25rem; }
  .seo-related { padding: 55px 0 70px; }
  .seo-final { padding: 65px 0; }
  .seo-landing .corp-button { width: 100%; }
}