.admin-card.sec01-card{width:min(720px,100%)}
.sec01-card{max-width:720px;margin:48px auto;padding:28px}.sec01-grid{display:grid;grid-template-columns:minmax(0,280px) 1fr;gap:28px;align-items:start}.sec01-qr{background:#fff;padding:14px;border-radius:16px;display:inline-flex;align-items:center;justify-content:center;min-width:260px;min-height:260px}.sec01-secret{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;overflow-wrap:anywhere;letter-spacing:.04em}.sec01-code-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:20px 0}.sec01-code{display:block;padding:12px;border:1px solid rgba(23,37,63,.15);border-radius:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;text-align:center}.sec01-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.sec01-divider{height:1px;background:rgba(23,37,63,.12);margin:26px 0}.sec01-note{font-size:.92rem;line-height:1.5}.sec01-input-code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:1.2rem;letter-spacing:.16em}.sec01-lock{padding:10px 12px;border-radius:10px;background:rgba(244,222,160,.45)}
@media (max-width:720px){.sec01-card{margin:20px auto;padding:20px}.sec01-grid{grid-template-columns:1fr}.sec01-code-list{grid-template-columns:1fr}.sec01-qr{min-width:0;width:100%;box-sizing:border-box}.sec01-qr svg{max-width:100%;height:auto}}