:root{--bg-primary: #0D0D0D;--bg-secondary: #1A1A1A;--bg-tertiary: #262626;--bg-hover: #333333;--text-primary: #FFFFFF;--text-secondary: #888888;--text-tertiary: #666666;--accent: #FF2D55;--accent-hover: #FF4D6F;--accent-dim: rgba(255, 45, 85, .15);--border: #333333;--success: #4ECDC4;--info: #45B7D1;--warning: #FECA57;--danger: #FF6B6B;--purple: #A66CFF;--sidebar-width: 240px;--header-height: 64px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--shadow: 0 4px 24px rgba(0, 0, 0, .3);--transition: all .2s ease}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft 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