/* 爬虫可读 HTML 页（/seo/*）轻量样式，不依赖前端构建 */
:root {
  --seo-bg: #f5f7fa;
  --seo-text: #323233;
  --seo-muted: #646566;
  --seo-link: #1989fa;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--seo-text);
  background: var(--seo-bg);
}
.seo-hd {
  padding: 1.25rem 1rem;
  background: linear-gradient(135deg, #3d7eff, #1989fa);
  color: #fff;
}
.seo-hd h1 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
}
.seo-tip {
  margin: 0;
  font-size: 0.9rem;
  opacity: 0.95;
}
.seo-tip a {
  color: #fff;
  text-decoration: underline;
}
.seo-main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1rem;
}
.seo-card {
  background: #fff;
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin-bottom: 0.75rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}
.seo-card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}
.seo-card time {
  display: block;
  font-size: 0.8rem;
  color: var(--seo-muted);
  margin-bottom: 0.5rem;
}
.seo-body p {
  margin: 0;
  white-space: pre-wrap;
}
.seo-ft {
  text-align: center;
  padding: 1.5rem 1rem 2rem;
  font-size: 0.9rem;
}
.seo-ft a {
  color: var(--seo-link);
}