*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f0f2f5}#root{min-height:100vh}.stat-card-value{font-size:28px;font-weight:600;color:#1890ff}.stat-card-label{font-size:14px;color:#8c8c8c;margin-top:4px}