:root {
  --bg: #14080d;
  --card: #241016;
  --line: #5c3142;
  --text: #f8eef2;
  --muted: #c4a8b4;
  --dim: #9a7e8a;
  --cyan: #fb7185;
  --pink: #f43f5e;
}
* { box-sizing: border-box; }
body.seo-page {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, #3a1524 0%, #14080d 420px, #14080d 100%);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.seo-wrap { width: min(1100px, calc(100% - 32px)); margin: 0 auto; }
.seo-nav {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(11, 2, 22, 0.94);
  border-bottom: 1px solid var(--line);
}
.seo-nav-inner, .seo-links { display: flex; align-items: center; gap: 18px; min-height: 58px; flex-wrap: wrap; }
.seo-brand { font-weight: 900; font-size: 1.15rem; }
.seo-brand span { color: var(--cyan); }
.seo-links a { color: var(--muted); font-size: 0.92rem; }
.seo-links a:hover { color: var(--cyan); }
.seo-main { padding: 22px 0 48px; }
.seo-crumb { color: var(--dim); font-size: 0.82rem; margin-bottom: 14px; }
.seo-crumb a:hover { color: var(--cyan); }
.seo-h1 { margin: 0 0 8px; font-size: clamp(1.4rem, 3vw, 2rem); line-height: 1.3; }
.seo-lead { margin: 0 0 18px; color: #d1d5db; }
.seo-hero {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 18px;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 16px;
}
.seo-hero img { width: 180px; height: 250px; object-fit: cover; background: #1c0e14; }
.seo-meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; color: var(--muted); font-size: 0.85rem; }
.seo-meta span, .seo-chip {
  border: 1px solid var(--line);
  padding: 2px 8px;
}
.seo-score { color: var(--pink); font-weight: 800; }
.seo-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.seo-btn, .seo-btn-ghost {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  font-weight: 800;
}
.seo-btn { background: var(--cyan); color: #3b0a18; }
.seo-btn-ghost { border: 1px solid var(--line); color: var(--text); }
.seo-video { margin-top: 16px; background: #3b0a18; border: 1px solid var(--line); }
.seo-video video { width: 100%; max-height: 640px; background: #000; }
.seo-block { margin-top: 28px; }
.seo-block h2 {
  margin: 0 0 12px;
  padding-left: 10px;
  border-left: 4px solid var(--cyan);
  font-size: 1.2rem;
}
.seo-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 0; }
.seo-facts div { background: rgba(11, 2, 22, 0.45); border: 1px solid var(--border, var(--line)); padding: 8px 10px; }
.seo-facts span { display: block; color: var(--dim); font-size: 0.75rem; }
.seo-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.seo-card { background: var(--card); border: 1px solid var(--line); overflow: hidden; }
.seo-card img { width: 100%; aspect-ratio: 2 / 3; object-fit: cover; background: #1c0e14; }
.seo-card p { margin: 0; padding: 8px 10px 10px; }
.seo-card strong { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.seo-card em { color: var(--pink); font-style: normal; font-size: 0.8rem; }
.seo-foot { border-top: 1px solid var(--line); padding: 28px 0; color: var(--dim); font-size: 0.82rem; }
.seo-foot a { color: var(--muted); margin-right: 12px; }
.seo-foot a:hover { color: var(--cyan); }
.seo-list { display: grid; gap: 8px; }
.seo-list a { display: block; padding: 8px 0; border-bottom: 1px solid rgba(43, 21, 84, 0.8); }
@media (max-width: 800px) {
  .seo-hero { grid-template-columns: 1fr; }
  .seo-hero img { width: 100%; height: 220px; }
  .seo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .seo-facts { grid-template-columns: 1fr; }
}