:root{--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-secondary: #64748b;--color-primary: #4f46e5;--color-primary-hover: #4338ca;--color-primary-light: #eef2ff;--color-success: #16a34a;--color-warning: #d97706;--color-error: #dc2626;--radius: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07), 0 2px 4px rgba(0, 0, 0, .06);--transition: .2s ease}[data-theme=dark]{--color-bg: #0f172a;--color-surface: #1e293b;--color-border: #334155;--color-text: #e2e8f0;--color-text-secondary: #94a3b8;--color-primary: #818cf8;--color-primary-hover: #6366f1;--color-primary-light: #1e1b4b;--color-success: #22c55e;--color-warning: #f59e0b;--color-error: #ef4444;--shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 6px rgba(0, 0, 0, .3), 0 2px 4px rgba(0, 0, 0, .2)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans SC,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh}a{color:var(--color-primary);text-decoration:none}button{cursor:pointer;font-family:inherit;font-size:inherit}input,textarea,select{font-family:inherit;font-size:inherit}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--color-text-secondary)}