:root{--nf-text:#111827;--nf-muted:#6b7280;--nf-border:rgba(17,24,39,0.08);--nf-primary:#111827}.nf-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#fff;padding:40px 16px}.nf-inner{max-width:960px;width:100%;gap:24px}.nf-hero,.nf-inner{display:flex;flex-direction:column;align-items:center}.nf-hero{gap:16px}.nf-logo-wrap{width:200px;height:200px;border-radius:16px;padding:20px;overflow:hidden;background:#f8f9fa;border:1px solid var(--nf-border);display:flex;align-items:center;justify-content:center}.nf-logo{max-width:100%;max-height:100%;object-fit:contain}.nf-code{display:flex;gap:8px;font-size:40px;font-weight:700;letter-spacing:2px;color:var(--nf-text)}.nf-content{text-align:center;border:1px solid var(--nf-border);border-radius:16px;padding:24px;background:#fff}.nf-title{margin:0 0 8px;font-size:28px;font-weight:700;color:var(--nf-text)}.nf-desc{margin:0 0 16px;color:var(--nf-muted)}.nf-actions{display:flex;gap:12px;margin:8px 0 4px}.nf-actions,.nf-btn{justify-content:center}.nf-btn{display:inline-flex;align-items:center;height:44px;padding:0 20px;border-radius:10px;font-weight:600;text-decoration:none;border:1px solid var(--nf-border)}.nf-btn-primary{background:var(--nf-primary);color:#fff;border-color:transparent}.nf-btn-primary:hover{background:#495057;transform:translateY(-2px);box-shadow:0 10px 30px rgba(33,37,41,.3);color:#fff;border-color:transparent}.nf-btn-secondary{background:#fff;color:var(--nf-text)}.nf-help{margin:8px 0 0;color:var(--nf-muted)}.nf-help-link{color:var(--nf-primary);text-decoration:underline}@media (max-width:480px){.nf-logo-wrap{width:140px;height:140px}.nf-code{font-size:32px}.nf-title{font-size:24px}}