:root{color-scheme:light;--bg:#f5f5f7;--card:#fff;--text:#1d1d1f;--muted:#6e6e73;--blue:#0071e3;--red:#c42b1c;--green:#248a3d}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px system-ui,"PingFang SC","Microsoft YaHei UI",sans-serif}.shell{min-height:100vh;display:grid;place-items:center;padding:24px}.card{width:min(100%,520px);background:var(--card);border:1px solid #00000012;border-radius:24px;padding:32px;box-shadow:0 18px 60px #00000010}.brand{font-weight:700;color:var(--blue)}h1{font-size:30px;letter-spacing:-.03em;margin:18px 0 10px}.hint{color:var(--muted);line-height:1.65}.error{color:var(--red)}.ok{color:var(--green);font-weight:650}label{display:block;font-weight:650;margin:18px 0}input{display:block;width:100%;min-height:46px;margin-top:8px;padding:10px 12px;border:1px solid #c7c7cc;border-radius:12px;font:inherit}button{width:100%;min-height:48px;border:0;border-radius:12px;background:var(--blue);color:#fff;font:inherit;font-weight:700;cursor:pointer}.danger{background:var(--red);margin-top:12px}dl{margin:20px 0}dl div{display:grid;grid-template-columns:120px 1fr;gap:14px;padding:12px 0;border-bottom:1px solid #00000010}dt{color:var(--muted)}dd{margin:0;word-break:break-all}@media(max-width:480px){.card{padding:24px 20px;border-radius:20px}dl div{grid-template-columns:1fr;gap:4px}}