:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#243b51;background:#f4f5f2;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;min-height:100svh;display:grid;place-items:center;padding:32px 20px}
.login-card{width:100%;max-width:420px;background:#fff;padding:40px;border:1px solid #e1e5df;border-radius:18px;box-shadow:0 12px 40px #243b5108}
.brand{display:flex;align-items:center;gap:10px;font-family:Georgia,serif;font-size:27px;font-weight:700}.brand span{display:grid;place-items:center;width:34px;height:34px;border:1px solid #b59a6b;border-radius:10px;font-size:24px}
h1{font-size:25px;font-weight:600;margin:34px 0 10px;letter-spacing:.02em}.intro,.hint{color:#76817b;font-size:14px;line-height:1.7}.intro{margin:0 0 28px}label{display:block;font-size:14px;margin:20px 0 9px}
input{width:100%;height:48px;border:1px solid #d9dfd7;border-radius:8px;background:#fff;padding:0 13px;font:inherit;color:inherit}input:focus{outline:2px solid #b59a6b;outline-offset:2px}
button{width:100%;height:48px;margin-top:24px;border:0;border-radius:8px;background:#243b51;color:white;font:inherit;font-weight:600;cursor:pointer}button:hover{background:#314f69}button:disabled{opacity:.6;cursor:wait}button:focus-visible{outline:2px solid #b59a6b;outline-offset:3px}
#loginError{font-size:14px;color:#a33c31;line-height:1.6;margin-bottom:0}.hint{text-align:center;margin:22px 0 0;font-size:12px}
@media(max-width:480px){.login-card{padding:30px 24px}h1{font-size:23px}body{padding:20px}}