:root { color-scheme: light; font-family: Arial, "Microsoft YaHei", sans-serif; color: #171717; background: #f4f3ef; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100svh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(100%, 420px); padding: 44px 36px; background: #fff; border: 1px solid #e6e5e0; border-radius: 16px; }
.brand { margin: 0 0 48px; font-size: 32px; font-weight: 800; letter-spacing: -2px; }
.brand span { display: block; margin-top: 5px; font-size: 11px; font-weight: 400; letter-spacing: 2px; }
.eyebrow { font-size: 10px; letter-spacing: 2px; color: #75756c; }
h1 { margin: 10px 0 28px; font-size: 24px; font-weight: 500; }
label { display: block; margin-top: 20px; font-size: 13px; }
input { width: 100%; margin-top: 9px; padding: 13px 12px; font: inherit; font-size: 16px; border: 1px solid #ccc; border-radius: 6px; background: #fafaf8; }
input:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid #333; outline-offset: 3px; }
[data-login-status] { min-height: 20px; margin: 16px 0; color: #a02424; font-size: 12px; line-height: 1.6; }
button { width: 100%; padding: 14px; border: 0; border-radius: 6px; background: #191919; color: #fff; font: inherit; cursor: pointer; }
button:disabled { opacity: .55; cursor: wait; }
a { display: inline-block; margin-top: 28px; color: #666; font-size: 12px; text-decoration: none; }
@media (max-width: 420px) { .login-card { padding: 32px 24px; } }