:root{--color-bg: #F7F9FC;--color-primary: #2F80ED;--color-primary-hover: #2570D4;--color-primary-light: #EBF2FD;--color-secondary: #27AE60;--color-secondary-light: #E8F8EF;--color-text: #333333;--color-text-secondary: #666666;--color-text-muted: #999999;--color-border: #E0E4EA;--color-border-light: #F0F2F5;--color-surface: #FFFFFF;--color-surface-hover: #F7F9FC}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}