/* 岩板灰纪 — 冷灰石板 + 银灰强调 */
.theme-slate {
  --bg: #0e1114;
  --bg-elev: #171b20;
  --bg-soft: #22282f;
  --ink: #eef1f4;
  --muted: #8b949e;
  --line: rgba(158,168,180, 0.12);
  --line-strong: rgba(158,168,180, 0.22);
  --accent: #9aa7b5;
  --accent-2: #c5ced6;
  --accent-ink: #101418;
  --font-display: "Archivo", sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}
.theme-slate .page-atmosphere {
  background:
    radial-gradient(780px 420px at 12% 0%, rgba(158,168,180,0.18), transparent 55%),
    radial-gradient(640px 360px at 92% 18%, rgba(158,168,180,0.1), transparent 50%),
    #0e1114;
}
.theme-slate .masthead-brand {
  background: linear-gradient(100deg, #eef1f4, #c5ced6 55%, #9aa7b5);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.theme-slate .btn-primary,
.theme-slate .link-vip {
  background: linear-gradient(135deg, #c5ced6, #9aa7b5);
  color: #101418;
}
.theme-slate .section-kicker { color: #c5ced6; }
.theme-slate .badge.paid { background: #9aa7b5; color: #101418; }