:root {
  color-scheme: light;
  --ink: #102341;
  --muted: #51627a;
  --line: #dbe3ee;
  --surface: #ffffff;
  --soft: #f4f7fb;
  --accent: #0f6c7d;
  --accent-strong: #0a4f63;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #f8fafc;
}

a {
  color: var(--accent-strong);
}

.seo-shell {
  min-height: 100vh;
}

.seo-nav,
.seo-section,
.seo-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.seo-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 0;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.seo-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 14px;
}

.seo-nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.seo-hero {
  background: linear-gradient(180deg, #eef7fa 0%, #f8fafc 100%);
  border-top: 1px solid #e6edf5;
  border-bottom: 1px solid #e6edf5;
}

.seo-hero-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: 38px;
  align-items: center;
  padding: 58px 0;
}

.seo-eyebrow {
  margin: 0 0 12px;
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.02;
  letter-spacing: 0;
}

.seo-lede {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.65;
}

.seo-byline {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.seo-byline a {
  color: var(--text);
  font-weight: 700;
}

.seo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.seo-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--accent-strong);
  border-radius: 7px;
  background: var(--accent-strong);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.seo-button.secondary {
  background: transparent;
  color: var(--accent-strong);
}

.seo-visual {
  border: 1px solid rgba(15, 79, 99, .16);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 24px 54px rgba(31, 46, 71, .14);
  overflow: hidden;
}

.seo-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.seo-section {
  padding: 50px 0;
}

.seo-section h2 {
  margin: 0 0 16px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.1;
  letter-spacing: 0;
}

.seo-section p {
  color: var(--muted);
  line-height: 1.7;
}

.seo-section-intro {
  max-width: 820px;
  margin: 0 0 24px;
  font-size: 18px;
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.seo-card {
  min-height: 190px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.seo-card-compact {
  min-height: 0;
}

.seo-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.seo-step {
  min-height: 0;
}

.seo-step > span {
  display: inline-flex;
  width: 32px;
  height: 32px;
  margin-bottom: 18px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--accent-strong);
  color: #fff;
  font-weight: 800;
}

.seo-media-layout {
  align-items: center;
}

.seo-video-frame video {
  display: block;
  width: 100%;
  height: auto;
  background: #07182b;
}

.seo-video-frame figcaption {
  padding: 12px 16px;
  color: var(--muted);
  font-size: 13px;
}

.seo-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.seo-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.seo-table th,
.seo-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  line-height: 1.55;
}

.seo-table thead th {
  background: var(--soft);
  color: var(--ink);
  font-size: 14px;
}

.seo-table tbody th {
  min-width: 170px;
  color: var(--ink);
}

.seo-table tbody td {
  min-width: 240px;
  color: var(--muted);
}

.seo-table tr:last-child th,
.seo-table tr:last-child td {
  border-bottom: 0;
}

.seo-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.seo-card p,
.seo-card li {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.seo-card ul {
  margin: 0;
  padding-left: 18px;
}

.seo-band {
  background: var(--soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.seo-two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 26px;
}

.seo-faq {
  display: grid;
  gap: 12px;
}

.seo-faq details {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.seo-faq summary {
  cursor: pointer;
  font-weight: 800;
}

.seo-related {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.seo-related a {
  display: inline-flex;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  text-decoration: none;
  font-size: 14px;
}

.seo-footer {
  padding: 26px 0 42px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 860px) {
  .seo-nav,
  .seo-hero-inner,
  .seo-section,
  .seo-footer {
    width: min(100% - 28px, 1120px);
  }

  .seo-hero-inner,
  .seo-grid,
  .seo-two-column,
  .seo-steps {
    grid-template-columns: 1fr;
  }

  .seo-visual {
    order: -1;
  }
}