:root {
  color-scheme: dark;
  --bg: #11100d;
  --panel: rgba(255, 249, 230, 0.08);
  --panel-strong: rgba(255, 249, 230, 0.13);
  --line: rgba(233, 205, 148, 0.24);
  --text: #fff7df;
  --muted: rgba(255, 247, 223, 0.68);
  --gold: #e6bf72;
  --mint: #8fd7c5;
  --ember: #d97956;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Outfit", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 12%, rgba(230, 191, 114, 0.2), transparent 28%),
    radial-gradient(circle at 88% 20%, rgba(143, 215, 197, 0.16), transparent 26%),
    linear-gradient(135deg, #15120d 0%, #0f1714 46%, #17110e 100%);
}
a { color: inherit; }
.page-shell { width: min(1120px, calc(100% - 36px)); margin: 0 auto; padding: 28px 0 56px; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 42px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; letter-spacing: .08em; }
.brand img { width: 38px; height: 38px; border-radius: 14px; object-fit: cover; }
.nav-links { display: flex; flex-wrap: wrap; gap: 10px; color: var(--muted); font-size: 14px; }
.nav-links a { text-decoration: none; padding: 9px 12px; border: 1px solid rgba(255,255,255,.1); border-radius: 999px; background: rgba(255,255,255,.04); }
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(300px, .7fr); gap: 34px; align-items: center; }
.kicker { display: inline-flex; color: var(--gold); background: rgba(230,191,114,.12); border: 1px solid rgba(230,191,114,.24); padding: 8px 12px; border-radius: 999px; font-weight: 700; font-size: 13px; }
h1 { margin: 18px 0 14px; font-size: clamp(38px, 6vw, 72px); line-height: 1.02; letter-spacing: .02em; }
.lead { margin: 0; max-width: 760px; color: var(--muted); font-size: clamp(17px, 2vw, 22px); line-height: 1.7; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.cta { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 18px; border-radius: 999px; text-decoration: none; font-weight: 800; border: 1px solid var(--line); }
.cta.primary { background: linear-gradient(135deg, var(--gold), #f2dba2); color: #1b1308; }
.cta.secondary { background: rgba(255,255,255,.06); color: var(--text); }
.preview-card { border: 1px solid var(--line); border-radius: 30px; padding: 18px; background: linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.045)); box-shadow: 0 28px 80px rgba(0,0,0,.32); }
.preview-card img, .preview-card video { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 22px; display: block; background: #070705; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.metric { padding: 12px; border-radius: 18px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.09); }
.metric strong { display: block; font-size: 22px; color: var(--mint); }
.metric span { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
.section { margin-top: 54px; }
.section h2 { font-size: clamp(24px, 3vw, 36px); margin: 0 0 16px; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { min-height: 190px; padding: 22px; border: 1px solid var(--line); border-radius: 24px; background: var(--panel); }
.card strong { display: block; font-size: 19px; margin-bottom: 10px; color: var(--gold); }
.card p, .card li { color: var(--muted); line-height: 1.65; }
ul { padding-left: 20px; margin: 8px 0 0; }
.faq { display: grid; gap: 12px; }
details { border: 1px solid var(--line); border-radius: 20px; padding: 16px 18px; background: rgba(255,255,255,.055); }
summary { cursor: pointer; font-weight: 800; }
details p { color: var(--muted); line-height: 1.7; }
.footer { margin-top: 56px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); color: var(--muted); font-size: 13px; }
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .nav { align-items: flex-start; flex-direction: column; }
}