:root{--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--bg-hover: #e8e8e8;--bg-input: #ffffff;--border-color: #e0e0e0;--border-hover: #ccc;--text-primary: #333333;--text-secondary: #666666;--text-muted: #999999;--text-dim: #555555;--menu-bg: #1a1a2e;--menu-text: #ffffff;--accent: #1a1a2e;--accent-hover: #2a2a4e;--canvas-bg: #ffffff;--dialog-bg: #ffffff;--dialog-shadow: rgba(0, 0, 0, .2);--node-bg: #ffffff;--node-border: #1a192b;--group-border: #6e6e8a;--group-bg: rgba(200, 200, 220, .15);--edge-stroke: #555555;--edge-textbg: #f0f0f0;--edge-textbg-stroke: #d0d0d0;--more-menu-bg: #ffffff;--view-toggle-bg: #ffffff;--view-toggle-color: #1a1a2e;--view-toggle-border: #1a1a2e;--view-toggle-hover: #f0f0f6;--more-trigger-bg: #ffffff;--more-trigger-color: #555555;--more-trigger-border: #e0e0e0;--more-trigger-hover: #f0f0f0;--sidebar-toggle-bg: #ffffff;--sidebar-toggle-color: #666666;--db-banner-bg: #f5f5f5;--db-banner-color: #555555;--db-banner-border: #e0e0e0}[data-theme=dark]{--bg-primary: 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