*{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #fef9f3;--bg-secondary: #fff5e8;--bg-tertiary: #ffffff;--bg-sidebar: #fff8ee;--bg-message-user: linear-gradient(135deg, #ffd89b 0%, #ffb3a7 100%);--bg-message-assistant: #ffffff;--bg-input: #ffffff;--bg-hover: rgba(255, 153, 102, .08);--bg-active: rgba(255, 153, 102, .15);--text-primary: #2d2419;--text-secondary: #6b5d4f;--text-tertiary: #9a8b7a;--text-on-accent: #ffffff;--border: rgba(255, 153, 102, .18);--border-strong: rgba(255, 153, 102, .3);--accent: #ff8c42;--accent-hover: #ff7a2e;--accent-soft: #ffd6b8;--accent-gradient: linear-gradient(135deg, #ff8c42 0%, #ff6b9d 100%);--success: #4caf50;--danger: #f44336;--shadow-sm: 0 2px 8px rgba(255, 140, 66, .08);--shadow-md: 0 4px 16px rgba(255, 140, 66, .12);--shadow-lg: 0 8px 32px rgba(255, 140, 66, .16);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px}[data-theme=dark]{--bg-primary: #1a1614;--bg-secondary: #221d1a;--bg-tertiary: #2a2421;--bg-sidebar: 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