:root{--bg-main: #ffffff;--bg-panel: #f0f7ff;--bg-hover: #e8f3ff;--text-primary: #1a1a1a;--text-secondary: #666666;--text-muted: #999999;--accent-red: #ff4444;--accent-orange: #ff8800;--accent-yellow: #ffaa00;--accent-blue: #0066ff;--accent-green: #00aa44;--border: #e0e0e0;--border-light: #f0f0f0;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 2px 8px rgba(0, 0, 0, .12)}:root[data-theme=dark]{--bg-main: #1a1a1a;--bg-panel: #222222;--bg-hover: #2a2a2a;--text-primary: #e0e0e0;--text-secondary: #a0a0a0;--text-muted: #707070;--accent-red: #ff6666;--accent-orange: #ffaa44;--accent-yellow: #ffcc44;--accent-blue: #4488ff;--accent-green: #44cc66;--border: #333333;--border-light: #2a2a2a;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .2);--shadow-md: 0 2px 8px rgba(0, 0, 0, .3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica 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