:root{--ink:#13211a;--muted:#647067;--paper:#fffaf1;--panel:rgba(255,255,255,0.82);--line:rgba(26,41,31,0.14);--mint:#3c7f64;--mint-deep:#245744;--sun:#f1b84b;--sky:#6da9c8;--rose:#c76b6d;--shadow:0 18px 60px rgba(28,42,34,0.16)}*{box-sizing:border-box}body,html{min-height:100%}body{margin:0;background:radial-gradient(circle at top left,rgba(109,169,200,.2),transparent 32rem),linear-gradient(135deg,#fff7e8,#f7f1df 44%,#e7f0e6);color:var(--ink);font-family:Arial,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}a,button{font:inherit}button{border:0}a{color:inherit;text-decoration:none}.shell{min-height:100vh;padding:32px;display:grid;place-items:center}.workspace{width:min(1180px,100%);min-width:0;min-height:min(760px,calc(100vh - 64px));padding:28px;border:1px solid var(--line);border-radius:8px;background:linear-gradient(rgba(255,250,241,.78),rgba(255,250,241,.86)),repeating-linear-gradient(115deg,rgba(36,87,68,.05),rgba(36,87,68,.05) 1px,transparent 0,transparent 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