*{box-sizing:border-box}:root{--bg:#f3f5f8;--panel:#fff;--panel-soft:#f8fafc;--nav:#111827;--nav-soft:#1f2937;--text:#172033;--muted:#667085;--line:#dde3ee;--blue:#2563eb;--blue-soft:#eaf1ff;--red:#d92d20;--red-soft:#fff1f0;--green:#039855;--green-soft:#e8f7ef;--gold:#b7791f;--gold-soft:#fff7e6;--shadow:0 18px 42px #0f172a14}body{color:var(--text);background:var(--bg);letter-spacing:0;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,Arial,sans-serif;line-height:1.5}#root{min-height:100vh}.app{grid-template-columns:248px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{color:#f8fafc;background:linear-gradient(#111827 0%,#182235 100%);flex-direction:column;height:100vh;padding:22px 16px;display:flex;position:sticky;top:0;overflow:hidden;box-shadow:12px 0 32px #0f172a24}.brand{border-bottom:1px solid #ffffff14;align-items:center;gap:12px;padding:0 8px 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