.seo-page {
  min-height: 100vh;
  background: #f4f7fb;
  color: #101722;
}

.seo-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 10px max(24px, calc((100vw - 1200px) / 2));
  border-bottom: 1px solid rgba(255,255,255,.1);
  background: rgba(16,23,34,.96);
  backdrop-filter: blur(14px);
}

.seo-header img { display: block; width: 190px; height: auto; }
.seo-header nav { display: flex; align-items: center; gap: 20px; }
.seo-header a { color: #dce5ef; text-decoration: none; font-weight: 800; }
.seo-header .button { color: #101722; }

.seo-main { overflow: hidden; }
.seo-shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.breadcrumbs { padding-top: 28px; color: #64748b; font-size: 14px; }
.breadcrumbs a { color: #1d63ad; }

.seo-hero {
  position: relative;
  padding: 54px 0 72px;
  background:
    linear-gradient(105deg, rgba(16,23,34,.98), rgba(16,23,34,.86)),
    url("assets/hero-industrial.jpg") center / cover;
  color: #fff;
}

.seo-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, .7fr);
  gap: 52px;
  align-items: center;
}

.seo-hero h1 {
  max-width: 800px;
  margin: 14px 0 20px;
  font-size: clamp(38px, 5vw, 68px);
  line-height: 1.02;
}

.seo-hero p { max-width: 760px; color: #c6d0dc; font-size: 19px; }
.seo-hero .eyebrow { color: #9dc5ff; }
.seo-hero img { display: block; width: 100%; height: auto; border-radius: 8px; }
.seo-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.seo-actions .secondary { border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.08); color: #fff; }

.seo-section { padding: 72px 0; }
.seo-section.alt { background: #eaf0f7; }
.seo-section.dark { background: #101722; color: #fff; }
.seo-section h2 { max-width: 820px; margin: 0 0 18px; font-size: clamp(30px, 4vw, 46px); line-height: 1.08; }
.seo-section > .seo-shell > p { max-width: 860px; color: #5f6f82; font-size: 18px; }
.seo-section.dark > .seo-shell > p { color: #b7c2cf; }

.seo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.seo-card {
  padding: 24px;
  border: 1px solid #d5dfeb;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(16,23,34,.07);
}

.seo-card b { display: block; margin-bottom: 10px; color: #1d63ad; font-size: 13px; text-transform: uppercase; }
.seo-card h3 { margin: 0 0 10px; font-size: 21px; }
.seo-card p, .seo-card li { color: #5f6f82; }
.seo-card ul { margin: 12px 0 0; padding-left: 18px; }

.seo-note {
  margin-top: 28px;
  padding: 22px 24px;
  border-left: 4px solid #f28c28;
  background: #fff7ed;
  color: #4d5968;
}

.seo-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.seo-links a {
  padding: 10px 13px;
  border: 1px solid #c9d6e5;
  border-radius: 6px;
  background: #fff;
  color: #1d63ad;
  text-decoration: none;
  font-weight: 800;
}

.seo-cta { padding: 64px 0; background: #182334; color: #fff; }
.seo-cta-wrap { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.seo-cta h2 { margin: 0 0 10px; font-size: clamp(30px, 4vw, 46px); }
.seo-cta p { max-width: 720px; margin: 0; color: #b7c2cf; }

.contact-list { display: grid; gap: 12px; margin: 24px 0; }
.contact-list div { padding: 18px; border: 1px solid #d5dfeb; border-radius: 8px; background: #fff; }
.contact-list b { display: block; margin-bottom: 5px; }
.contact-list a { color: #1d63ad; font-weight: 800; }

.seo-footer { padding: 34px 0; background: #0c121c; color: #aab5c4; }
.seo-footer .seo-shell { display: flex; justify-content: space-between; gap: 24px; }
.seo-footer a { color: #dce5ef; }

@media (max-width: 840px) {
  .seo-header nav a:not(.button) { display: none; }
  .seo-hero-grid, .seo-grid { grid-template-columns: 1fr; }
  .seo-hero-grid { gap: 30px; }
  .seo-hero img { max-width: 520px; }
  .seo-cta-wrap, .seo-footer .seo-shell { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 520px) {
  .seo-header { padding-inline: 15px; }
  .seo-header img { width: 140px; }
  .seo-shell { width: min(100% - 30px, 1120px); }
  .seo-hero { padding: 38px 0 48px; }
  .seo-hero h1 { font-size: 38px; }
  .seo-section { padding: 52px 0; }
  .seo-actions .button { width: 100%; }
}