body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif}#root{min-height:100vh}.logo{height:32px;margin:16px;background:rgba(255,255,255,.3);border-radius:6px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px}.stat-card{text-align:center}.stat-value{font-size:30px;font-weight:700;color:#1890ff}.stat-label{color:#8c8c8c;margin-top:8px}