body{font-family:-apple-system,system-ui,sans-serif;margin:0;padding:24px;background:#111;color:#eee}
main{max-width:520px;margin:0 auto}
h1{font-size:26px}
.notice{background:#3a2a00;border:2px solid #f5b300;padding:14px;border-radius:10px;font-size:18px;font-weight:600}
.notice2{background:#222;border:1px solid #666;padding:12px;border-radius:10px}
button{display:block;width:100%;font-size:24px;padding:22px;margin:18px 0;border:0;border-radius:14px;background:#0a84ff;color:#fff}
button:disabled{background:#444;color:#999}
#out{white-space:pre-wrap;word-break:break-all;font-size:16px;background:#1d1d1d;padding:14px;border-radius:10px;min-height:40px}
.ok{color:#5fd068}.err{color:#ff6b6b}