:root{color-scheme:light;--paper:#f6f1e6;--ink:#2b2118;--line:#e2d9c6;--night:#162431;--mist:#bdcbd0;--blue:#2f6388}
*{box-sizing:border-box}body{margin:0;background:var(--night);color:var(--ink);font:16px/1.6 "PingFang SC","Noto Sans SC",sans-serif;min-height:100vh;min-height:100svh;display:grid;place-items:center;padding:40px 24px}
.entrance{width:min(100%,980px);display:grid;grid-template-columns:1fr 1fr;overflow:hidden;border:1px solid #465661;border-radius:12px}
.identity{position:relative;isolation:isolate;overflow:hidden;padding:44px 48px 48px;min-height:600px;color:var(--paper);display:flex;flex-direction:column;justify-content:flex-end}
.brand{position:absolute;top:36px;left:48px;margin:0;font-size:21px;font-weight:600}
.seal{position:absolute;top:45px;right:34px;z-index:-1;font:240px/1.4 "Songti SC",STSong,serif;color:#7896a2;opacity:.24;user-select:none}
h1{font:500 clamp(31px,4vw,42px)/1.5 "Songti SC",STSong,serif;margin:0 0 22px}.intro{font-size:15px;color:var(--mist);margin:0;line-height:1.9}
.entry{padding:64px 44px 40px;background:var(--paper);display:flex;flex-direction:column;justify-content:center;min-width:0}h2{margin:0 0 12px;font:600 26px/1.5 "Songti SC",STSong,serif}.lead{margin:0 0 30px;color:#736550;font-size:15px;line-height:1.8}
form label{display:block;font-size:14px;margin-bottom:9px}input{width:100%;height:50px;padding:10px 13px;border:1px solid #b8ab94;border-radius:6px;background:#fffdf7;font:inherit;color:var(--ink)}
#password-help{font-size:12px;color:#736550;line-height:1.6;margin:9px 0 0}#login-message{min-height:45px;font-size:13px;line-height:1.7;margin:12px 0;color:var(--blue)}#login-message.error{color:#9e3226}
button{width:100%;min-height:50px;padding:12px 16px;border:0;border-radius:6px;background:var(--night);color:var(--paper);font:600 15px/1.5 "PingFang SC",sans-serif;cursor:pointer}button:hover{background:#294b60}button:disabled{opacity:.65;cursor:wait}input:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.entry-note{font-size:12px;line-height:1.9;color:#736550;border-top:1px solid var(--line);padding-top:24px;margin:32px 0 0}
@media(max-width:650px){body{padding:0;display:block}.entrance{display:block;border:0;border-radius:0;min-height:100svh}.identity{min-height:260px;padding:85px 28px 28px}.brand{top:22px;left:28px;font-size:19px}.seal{font-size:165px;top:8px;right:24px}h1{font-size:30px;line-height:1.35;margin-bottom:12px}.intro{font-size:13px}.intro br{display:none}.entry{padding:32px 28px 36px}h2{font-size:25px}.lead{margin-bottom:24px}.entry-note{margin-top:26px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}