:root {
  --bg: #f6f2ea;
  --card: #ffffff;
  --ink: #2b1a0e;
  --muted: #6f5a48;
  --line: #e8dccb;
  --brand: #b7743d;
  --brand-ink: #ffffff;
  --soft: #fff4e6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17110c;
    --card: #211912;
    --ink: #f5ebe0;
    --muted: #c2ad97;
    --line: #3a2c20;
    --brand: #d08b4f;
    --brand-ink: #1a110a;
    --soft: #2b2017;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
main { max-width: 560px; margin: 0 auto; padding: 32px 16px 48px; }
.hero { text-align: center; }
.icon { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 6px 20px rgba(80, 45, 15, .18); }
h1 { font-size: 28px; line-height: 1.2; margin: 16px 0 6px; letter-spacing: -.01em; }
.lead { color: var(--muted); margin: 0 auto 24px; max-width: 420px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 20px; margin-top: 16px; }
.btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; min-height: 56px; padding: 0 20px; border-radius: 14px;
  background: var(--brand); color: var(--brand-ink); text-decoration: none;
  font-size: 18px; font-weight: 700;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 22px; height: 22px; flex: none; }
.meta { text-align: center; color: var(--muted); font-size: 13px; margin: 10px 0 0; }
h2 { font-size: 17px; margin: 0 0 12px; }
ol { margin: 0; padding: 0; list-style: none; counter-reset: step; }
ol li { counter-increment: step; position: relative; padding: 0 0 14px 40px; }
ol li:last-child { padding-bottom: 0; }
ol li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--soft); color: var(--brand); font-weight: 700; font-size: 14px;
  display: flex; align-items: center; justify-content: center;
}
ol li b { font-weight: 650; }
.note { background: var(--soft); border-radius: 14px; padding: 14px 16px; font-size: 15px; }
.qr { display: flex; gap: 18px; align-items: center; }
.qr img { width: 132px; height: 132px; border-radius: 10px; background: #fff; padding: 6px; flex: none; }
.muted { color: var(--muted); }
.hidden { display: none; }
footer { text-align: center; color: var(--muted); font-size: 13px; margin-top: 28px; }
footer a { color: inherit; }
@media (max-width: 420px) { .qr { flex-direction: column; text-align: center; } }
.m0 { margin: 0; }