*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #6366f1;--primary-hover: #818cf8;--primary-light: rgba(99,102,241,.15);--bg-dark: #0f172a;--bg-surface: #1e293b;--bg-card: #1e293b;--bg-page: #0f172a;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--border: #334155;--radius: 12px;--shadow-sm: 0 1px 2px rgba(0,0,0,.3);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.4), 0 2px 4px -2px rgba(0,0,0,.3);--shadow-lg: 0 10px 15px -3px rgba(0,0,0,.5), 0 4px 6px -4px rgba(0,0,0,.4)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica 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