@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&family=Libre+Baskerville:wght@400;700&display=swap");:root{--bg-home:#f5f5f7;--bg-chat:#fff;--bg-sidebar:#fafafa;--text:#1d1d1f;--text-secondary:#6e6e73;--text-muted:#86868b;--border:rgba(0,0,0,.08);--border-strong:rgba(0,0,0,.12);--accent:#0071e3;--accent-light:#e8f2fe;--shadow-sm:0 1px 3px rgba(0,0,0,.06);--shadow-md:0 4px 16px rgba(0,0,0,.08);--shadow-lg:0 8px 32px 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