.seo-page {
  min-height: 100vh;
  padding: 132px 22px 64px;
  background:
    radial-gradient(circle at 12% 12%, rgba(53, 185, 223, 0.12), transparent 28%),
    linear-gradient(180deg, #f5fbff 0%, #eaf4fa 100%);
  color: #0c2238;
  font-family: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
}

.seo-page main {
  width: min(980px, 100%);
  margin: 0 auto;
}

.seo-page article {
  padding: clamp(28px, 4vw, 48px);
  border: 1px solid rgba(185, 211, 225, 0.78);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 50px rgba(7, 48, 82, 0.12);
}

.seo-page h1 {
  margin: 0 0 18px;
  color: #102a42;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.06;
}

.seo-page p {
  color: #49657c;
  font-size: clamp(17px, 1.35vw, 19px);
  line-height: 1.72;
}

.seo-page ul {
  color: #49657c;
  font-size: 17px;
  line-height: 1.7;
}

.seo-page .back-link {
  display: inline-flex;
  margin-bottom: 22px;
  color: #0b426b;
  font-weight: 650;
  text-decoration: none;
}