:root{font-family:Segoe UI,PingFang SC,sans-serif;color:#13233a;background:linear-gradient(145deg,#e7f1ff,#f7fbff)}body{margin:0}.container{max-width:480px;margin:40px auto;padding:24px;background:#fff;border-radius:16px;box-shadow:0 12px 40px #13233a1f}h1{margin:0 0 12px}p{min-height:24px}input{width:100%;margin-top:12px;box-sizing:border-box;padding:10px 12px;border:1px solid #b7c8de;border-radius:8px}.actions{margin-top:16px;display:flex;gap:12px}button{flex:1;border:none;border-radius:8px;padding:10px 12px;background:#0d5bd1;color:#fff;font-weight:600;cursor:pointer}button:disabled{background:#8fa8c8;cursor:not-allowed}