:root {
  --seo-bg: #f3f7f5;
  --seo-text: #1f2b28;
  --seo-muted: #4a5d57;
  --seo-brand: #1f5d49;
  --seo-brand-dark: #164437;
  --seo-card: #ffffff;
  --seo-border: #d5e2dc;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", "Segoe UI", Arial, sans-serif;
  color: var(--seo-text);
  background: var(--seo-bg);
  line-height: 1.6;
}

a {
  color: var(--seo-brand);
}

a:hover {
  color: var(--seo-brand-dark);
}

.seo-wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 20px 14px 54px;
}

.seo-topbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.seo-topbar a {
  text-decoration: none;
  padding: 8px 12px;
  border: 1px solid var(--seo-border);
  border-radius: 999px;
  background: #fff;
  font-weight: 600;
  font-size: 0.86rem;
}

.seo-hero {
  border: 1px solid var(--seo-border);
  background: linear-gradient(135deg, #ffffff 0%, #eef7f3 100%);
  border-radius: 16px;
  padding: 22px;
  margin-bottom: 20px;
}

.seo-hero p {
  margin: 0;
  color: var(--seo-muted);
}

h1,
h2,
h3 {
  line-height: 1.25;
  margin-top: 0;
}

h1 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 10px;
}

h2 {
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  margin: 24px 0 10px;
}

h3 {
  font-size: 1.06rem;
  margin: 16px 0 8px;
}

.seo-card {
  border: 1px solid var(--seo-border);
  border-radius: 14px;
  padding: 18px;
  background: var(--seo-card);
  margin-bottom: 16px;
}

.seo-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.seo-list {
  padding-left: 18px;
}

.seo-list li {
  margin-bottom: 6px;
}

.seo-cta {
  border: 1px solid #bad5ca;
  background: #e9f5ef;
  border-radius: 14px;
  padding: 18px;
}

.seo-footer {
  margin-top: 24px;
  font-size: 0.9rem;
  color: var(--seo-muted);
}