:root{--bg:#f5f1eb;--surface:#fff;--soft:#fffaf3;--warm:#fff0dc;--mint:#edf8f4;--ink:#27241f;--muted:#777169;--rule:#e9e1d7;--accent:#ed7b2c;--accent-dark:#c75d17;--green:#287c64;--shadow:rgba(74,49,24,.1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--ink);background:radial-gradient(circle at 10% 6%,#ffdfbd,transparent 24%),radial-gradient(circle at 90% 92%,#dff4ed,transparent 25%),var(--bg);font-family:PingFang SC,Microsoft YaHei,Inter,ui-sans-serif,system-ui,sans-serif;line-height:1.55}button,input,textarea{color:inherit;font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.58}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(237,123,44,.2);outline-offset:2px}.app-shell{width:min(1180px,calc(100% - 40px));min-height:calc(100vh - 40px);margin:20px auto;display:grid;grid-template-columns:242px minmax(0,1fr);overflow:hidden;border:1px solid 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