*{box-sizing:border-box}body{margin:0;background:#f4f7fa;font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:#15202b}.phone{max-width:430px;margin:30px auto;padding:22px;background:white;min-height:90vh;border-radius:20px;box-shadow:0 10px 40px #0001}.banner{padding:12px;border-radius:12px;background:#fff3cd;color:#735c00;font-size:12px;font-weight:800;text-align:center;margin-bottom:22px}h1{font-size:28px;margin:0 0 24px}label{display:block;font-weight:700;margin:18px 0}input,select{width:100%;padding:14px;border:1px solid #d8dee5;border-radius:10px;margin-top:8px;font-size:16px;background:white}.row{display:flex;gap:8px}.row input{flex:1}.row button{margin-top:8px}.primary,button{border:0;border-radius:10px;padding:14px 18px;font-weight:800;cursor:pointer}.primary{width:100%;background:#00a859;color:white;margin-top:10px}.result{margin:12px 0;padding:14px;border-radius:12px;background:#e4f5e9;color:#08743d}.hidden{display:none}#msg{font-size:14px;margin-top:16px}