:root{--bg-page:#f2f5f7;--bg-sidebar:#e5ebf0;--bg-surface:#fff;--bg-muted:#eef3f6;--bg-hover:#dce4eb;--border-strong:#8da0b3;--border-mid:#b8c6d4;--border-light:#d8e2eb;--border-dark:#506173;--text-primary:#121c26;--text-secondary:#3d4c5c;--text-muted:#647487;--text-code:#0b1520;--accent:#007a82;--accent-hover:#006066;--accent-dark:#004d52;--accent-light:#e6f4f5;--accent-subtle:#f0f8f9;--link-blue:#069;--success:#0b7a48;--danger:#c52222;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;--font-mono:"JetBrains Mono", Consolas, "Courier New", monospace}[data-theme=dark]{--bg-page:#0b0f14;--bg-sidebar:#12171f;--bg-surface:#181f2a;--bg-muted:#202a38;--bg-hover:#293647;--border-strong:#3f5166;--border-mid:#2c394a;--border-light:#1f2b38;--border-dark:#63778e;--text-primary:#e6edf5;--text-secondary:#9cb0c5;--text-muted:#6b8096;--text-code:#58a6ff;--accent:#009aa4;--accent-hover:#00b3bf;--accent-dark:#006066;--accent-light:#123035;--accent-subtle:#0f2428;--link-blue:#58a6ff;--success:#2ea043;--danger:#f85149}*,:before,:after{box-sizing:border-box;margin:0;padding:0;border-radius:0!important}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:15px}@media (width>=768px){html{font-size:16px}}@media (width>=1400px){html{font-size:17px}}body{background-color:var(--bg-page);color:var(--text-primary);font-family:var(--font-sans);min-height:100vh;line-height:1.5;transition:background-color .15s,color 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