:root{color:#241817;background:#fffaf3;font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,system-ui,sans-serif;font-synthesis:none;line-height:1.5;--red: #8d2525;--deep-red: #5a1717;--ink: #241817;--muted: #79645c;--paper: #fffaf3;--paper-strong: #fff3e2;--jade: #35584d;--gold: #c79643;--border: rgba(85, 49, 35, .16);--shadow: 0 18px 44px rgba(52, 28, 17, .12)}*{box-sizing:border-box}body{margin:0;min-width:320px;background:linear-gradient(180deg,#fffaf3,#fff7ee 52%,#f8eee0)}button,input,select,textarea{font:inherit;letter-spacing:0}a{color:inherit;text-decoration:none}body[data-language=zh] [data-lang=en],body[data-language=en] [data-lang=zh]{display:none!important}body[data-language=zh] [data-lang=zh],body[data-language=en] [data-lang=en]{display:contents!important}.app-shell{min-height:100vh}.app-header{position:sticky;z-index:5;top:0;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 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