* { box-sizing: border-box; }
body {
  margin: 0;
  color: #1d2939;
  background: #f7f9fc;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}
a { color: #00275c; text-decoration: none; }
a:hover { color: #e06520; text-decoration: underline; }
.seo-header {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 28px;
  background: #fff;
  border-bottom: 1px solid rgba(0, 39, 92, .08);
}
.brand { font-size: 22px; font-weight: 900; color: #fd8541; }
.seo-header nav { display: flex; gap: 18px; flex-wrap: wrap; }
.seo-main { max-width: 1080px; margin: 0 auto; padding: 32px 20px 56px; }
.hero {
  background: #fff;
  border: 1px solid rgba(0, 39, 92, .08);
  border-radius: 8px;
  padding: 28px;
  margin-bottom: 22px;
}
.kicker {
  display: inline-block;
  margin: 0 0 8px;
  color: #e06520;
  font-weight: 800;
}
h1 { margin: 0 0 12px; color: #00275c; font-size: 34px; line-height: 1.2; }
h2 { margin: 0 0 10px; color: #1d2939; font-size: 22px; }
p { margin: 0 0 12px; color: #667085; }
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 22px;
}
.grid article, .category {
  background: #fff;
  border: 1px solid rgba(0, 39, 92, .08);
  border-radius: 8px;
  padding: 22px;
  margin-bottom: 16px;
}
.link-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.link-cloud a {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: #d8e2ff;
  color: #00275c;
  font-weight: 700;
  font-size: 14px;
}
.seo-footer {
  text-align: center;
  color: #98a2b3;
  padding: 24px;
}
@media (max-width: 760px) {
  .seo-header { height: auto; align-items: flex-start; flex-direction: column; padding: 18px; }
  .grid { grid-template-columns: 1fr; }
  h1 { font-size: 26px; }
}