:root{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#182a32;background:#f4f6f3;font-synthesis:none;color-scheme:light}
*{box-sizing:border-box}body{margin:0;min-height:100svh;display:grid;place-items:center;padding:32px 20px;background:radial-gradient(ellipse at 50% 0%,#e4ede7 0,transparent 65%),#f4f6f3}
.gate{width:min(100%,420px);padding:44px 40px 30px;border:1px solid #dde4de;border-radius:24px;background:#ffffffed;box-shadow:0 18px 60px #18362909;text-align:center}
.brand{display:grid;place-items:center;width:58px;height:58px;margin:0 auto 25px;border-radius:18px;background:#254e40;color:#fff;font-size:30px;font-weight:600}.eyebrow{font-size:12px;letter-spacing:.17em;color:#667a6f;margin:0 0 10px}h1{font-size:30px;letter-spacing:.04em;margin:0 0 13px}.intro{font-size:14px;line-height:1.8;color:#6a7671;margin:0 0 31px}
form{text-align:left}label{display:block;font-size:13px;font-weight:600;margin-bottom:11px}input{display:block;width:100%;height:62px;border:1px solid #bccac1;border-radius:12px;background:#fafcf9;color:#244536;text-align:center;font-size:28px;letter-spacing:.43em;padding:0 8px 0 20px;outline:none}input:focus{border-color:#35674d;box-shadow:0 0 0 3px #35674d20}input[aria-invalid=true]{border-color:#a04438}button{width:100%;border:0;border-radius:12px;background:#254e40;color:#fff;min-height:50px;font:inherit;font-size:16px;font-weight:600;cursor:pointer}button:focus-visible{outline:3px solid #9abbab;outline-offset:3px}button:disabled{background:#768b80;cursor:wait}#message{min-height:22px;font-size:13px;line-height:1.6;color:#9a4237;margin:10px 0 14px}.remembered{font-size:12px;line-height:1.9;color:#758178;margin:21px 0 29px}footer{border-top:1px solid #edf0eb;padding-top:21px;font-size:11px;color:#879189;letter-spacing:.04em}
@media(max-width:480px){body{padding:24px 18px}.gate{padding:34px 25px 25px;border-radius:21px}h1{font-size:28px}.intro{font-size:13px}input{font-size:28px}.remembered{margin-bottom:24px}}
@media(prefers-reduced-motion:no-preference){button{transition:background .15s}button:hover:not(:disabled){background:#326451}}