.seo-page {
  min-height: 100vh;
  margin: 0;
  background: #f7f7f3;
  color: #1f292c;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.8;
}

.seo-page main {
  width: min(100% - 32px, 960px);
  margin: 0 auto;
  padding: 44px 0 72px;
}

.seo-header {
  margin-bottom: 28px;
}

.seo-header a,
.seo-links a,
.seo-card a {
  color: #197f72;
  font-weight: 700;
  text-decoration: none;
}

.seo-header h1 {
  margin: 18px 0 12px;
  max-width: 780px;
  font-size: 38px;
  line-height: 1.25;
}

.seo-lead {
  max-width: 760px;
  color: #47575b;
  font-size: 17px;
}

.seo-card {
  padding: 28px;
  border: 1px solid #d4ddda;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 50px rgb(23 35 32 / 8%);
}

.seo-card h2 {
  margin: 32px 0 8px;
  font-size: 22px;
  line-height: 1.35;
}

.seo-card h2:first-child {
  margin-top: 0;
}

.seo-card h3 {
  margin: 22px 0 6px;
  font-size: 18px;
}

.seo-card p,
.seo-card li {
  color: #47575b;
}

.seo-card ul,
.seo-card ol {
  padding-left: 1.4em;
}

.seo-note {
  margin: 24px 0;
  padding: 18px;
  border-left: 4px solid #197f72;
  background: #f2f8f6;
  color: #334346;
}

.seo-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-top: 24px;
}

@media (max-width: 640px) {
  .seo-page main {
    width: min(100% - 24px, 960px);
    padding: 28px 0 48px;
  }

  .seo-header h1 {
    font-size: 30px;
  }

  .seo-card {
    padding: 20px;
  }
}