:root{color-scheme:light;--bg:#f7f6f2;--surface:#fbfaf7;--ink:#262522;--muted:#817d75;--line:#dedad1;--line-soft:#ebe7df}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
body{min-height:100dvh}.login-shell{min-height:100dvh;display:grid;place-items:center;padding:24px}.login-card{width:min(360px,100%);text-align:center}.brand{font-family:Georgia,"Times New Roman",serif;font-weight:600;font-size:28px;letter-spacing:-1.2px;margin-bottom:42px}.login-card h1{font-family:Georgia,"Songti SC","Times New Roman",serif;font-size:32px;line-height:1.1;font-weight:500;letter-spacing:-.8px;margin:0 0 10px}.sub{color:var(--muted);font-size:14px;margin:0 0 26px}.field{display:block}.field input{width:100%;height:48px;border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:0 14px;outline:none;font:inherit;color:var(--ink);box-shadow:0 1px 1px rgba(28,26,22,.02)}.field input:focus{border-color:#aaa59a;box-shadow:0 0 0 3px rgba(80,76,68,.06)}.field input::placeholder{color:#aaa69d}.error{min-height:20px;margin:9px 0 5px;color:#a04b3d;font-size:12px;text-align:left}.login-card button{width:100%;height:46px;border:0;border-radius:12px;background:var(--ink);color:white;font:inherit;font-weight:650;cursor:pointer}.login-card button:hover{opacity:.92}.login-card button:active{transform:translateY(1px)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:480px){.login-shell{place-items:start center;padding-top:22vh}.brand{margin-bottom:36px}.login-card h1{font-size:30px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}