.seo-page {
  color: var(--ink);
}

.seo-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.seo-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
}

.seo-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.seo-nav a,
.seo-pill-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 10px 13px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 8px 18px rgba(23, 20, 41, 0.08);
}

.seo-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.78fr);
  gap: 24px;
  align-items: center;
  padding: clamp(24px, 5vw, 56px);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 216, 77, 0.28), transparent 38%),
    linear-gradient(225deg, rgba(24, 213, 255, 0.34), transparent 42%),
    rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
}

.seo-hero h1 {
  margin: 8px 0 14px;
  font-size: clamp(3rem, 8vw, 6.6rem);
  line-height: 0.88;
}

.seo-hero p {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.06rem;
  font-weight: 800;
  line-height: 1.55;
}

.seo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.seo-mini-board {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 4px;
  padding: 12px;
  border: 5px solid var(--ink);
  border-radius: 18px;
  background: var(--ink);
  transform: rotate(1.5deg);
}

.seo-mini-board span {
  display: grid;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  font-weight: 900;
}

.seo-mini-board span:nth-child(odd):empty {
  background: linear-gradient(135deg, var(--cyan), var(--pink));
}

.seo-section {
  margin-top: 24px;
  padding: 28px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
}

.seo-section h2 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 0.98;
}

.seo-section h3 {
  margin: 22px 0 8px;
  font-size: 1.22rem;
}

.seo-section p,
.seo-section li {
  color: var(--muted);
  font-weight: 800;
  line-height: 1.65;
}

.seo-section p {
  margin: 0 0 14px;
}

.seo-section ul,
.seo-section ol {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding-left: 1.2rem;
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.seo-tile {
  padding: 18px;
  border-radius: 18px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(23, 20, 41, 0.08);
}

.seo-tile strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.04rem;
}

.seo-tile span {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.45;
}

.seo-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

@media (max-width: 780px) {
  .seo-shell {
    width: min(100% - 20px, 680px);
    padding-top: 10px;
  }

  .seo-topbar {
    display: grid;
  }

  .seo-nav {
    justify-content: start;
  }

  .seo-hero {
    grid-template-columns: 1fr;
  }

  .seo-hero,
  .seo-section {
    padding: 22px;
    border-radius: 24px;
  }

  .seo-hero h1 {
    font-size: clamp(3rem, 16vw, 4.8rem);
  }

  .seo-grid {
    grid-template-columns: 1fr;
  }
}