.nf-body{--nf-primary:#00489d;--nf-primary-dark:#003576;--nf-primary-light:#e6f0fa;--nf-text:#1f2937;--nf-text-muted:#6b7280;--nf-bg:#fff;--nf-bg-soft:#f6f9fc;color:var(--nf-text);background:var(--nf-bg-soft);box-sizing:border-box;justify-content:center;align-items:center;min-height:100vh;padding:24px;font-family:Noto Sans JP,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.7;display:flex}.nf-body *{box-sizing:border-box}.nf-container{background:var(--nf-bg);text-align:center;border-radius:16px;width:100%;max-width:560px;padding:56px 40px;box-shadow:0 4px 24px #00489d14}.nf-code{color:var(--nf-primary);letter-spacing:-.02em;margin-bottom:8px;font-size:88px;font-weight:900;line-height:1}.nf-container h1{color:var(--nf-text);margin:0 0 16px;font-size:24px;font-weight:700}.nf-container p{color:var(--nf-text-muted);margin:0 0 32px;font-size:15px}.nf-actions{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.nf-btn{border-radius:999px;padding:12px 24px;font-size:15px;font-weight:700;text-decoration:none;transition:transform .15s,box-shadow .15s;display:inline-block}.nf-btn-primary{background:var(--nf-primary);color:#fff}.nf-btn-primary:hover{background:var(--nf-primary-dark);transform:translateY(-1px);box-shadow:0 6px 16px #00489d40}.nf-btn-outline{background:var(--nf-primary-light);color:var(--nf-primary)}.nf-btn-outline:hover{background:#d4e3f5}@media (max-width:480px){.nf-container{padding:40px 24px}.nf-code{font-size:64px}.nf-container h1{font-size:20px}}