:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --surface2: #243044;
  --border: #2d3f56;
  --text: #e8edf4;
  --muted: #8b9cb3;
  --accent: #d4af37;
  --accent-dim: #9a7b1a;
  --radius: 10px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.7;
}
main { max-width: 760px; margin: 0 auto; padding: 1.25rem; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.35rem 1.6rem;
}
h1 { font-size: 1.25rem; color: var(--accent); margin-bottom: 0.35rem; }
.meta { font-size: 0.82rem; color: var(--muted); margin-bottom: 1.1rem; }
h2 {
  font-size: 1rem;
  color: var(--accent);
  margin: 1.15rem 0 0.4rem;
  font-weight: 600;
}
p, li { font-size: 0.92rem; margin-bottom: 0.65rem; }
ul { padding-left: 1.2rem; margin-bottom: 0.65rem; }
a { color: var(--accent); }
.nav-back { display: inline-block; margin-bottom: 0.9rem; font-size: 0.9rem; text-decoration: none; }
.legal-footer { margin-top: 1.1rem; font-size: 0.82rem; color: var(--muted); }
.legal-footer a { margin-right: 0.85rem; }
label { display: block; font-size: 0.82rem; color: var(--muted); margin: 0.65rem 0 0.3rem; }
input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.95rem;
}
.btn {
  padding: 0.65rem 0.85rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  margin-top: 0.9rem;
  width: 100%;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dim) 100%);
  border: none;
  color: #111;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.error { color: #e07070; font-size: 0.88rem; margin-top: 0.7rem; }
.ok { color: #8fce8f; font-size: 0.88rem; margin-top: 0.7rem; }