:root{--paper: #fbf8f4;--panel: #fffdf9;--panel-strong: #fff7ee;--ink: #2e2a27;--muted: #746b63;--soft: #9a8d82;--line: #eadfd3;--rose: #c76872;--rose-soft: #f7d9dc;--sage: #78927c;--sage-soft: #dfeadc;--amber: #d79a4b;--blue: #6f8da6;--shadow-card: 0 14px 44px rgba(82, 63, 47, .07);--shadow-float: 0 24px 60px rgba(82, 63, 47, .11);--radius: 8px;--font-title: Georgia, "Times New Roman", "Songti SC", serif;--font-body: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--ink);background:linear-gradient(90deg,rgba(120,146,124,.05) 1px,transparent 1px),linear-gradient(rgba(120,146,124,.05) 1px,transparent 1px),var(--paper);background-size:34px 34px;font-family:var(--font-body);letter-spacing:0}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.58}.app-shell{display:grid;grid-template-columns:244px 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