:root{--bg:#fffdf9;--panel:#fffefa;--ink:#17211d;--muted:#6c716d;--line:#eee3d5;--accent:#2f6a3a;--accent-soft:#edf3e8;--warm:#8b5932;--danger:#ef513c;--shadow:0 10px 30px rgba(65,43,20,.04);font-family:PingFang SC,Noto Sans SC,system-ui,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,#fffdf9,#fffaf3);min-width:320px}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #b8d5b9;outline-offset:2px}.app-shell{min-height:100vh;display:grid;grid-template-columns:210px minmax(0,1fr)}.sidebar{position:sticky;top:0;height:100vh;border-right:1px solid var(--line);padding:22px 10px;background:#fffdf9d9;z-index:3}.brand{font-size:22px;font-weight:700;display:flex;gap:10px;align-items:center;padding:0 10px 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