.aqi-float{position:fixed;right:20px;bottom:120px;background:#fff;padding:10px 14px;border-radius:8px;box-shadow:0 5px 20px rgba(0,0,0,0.15);font-size:14px;z-index:9999;text-align:center}.aqi-good{color:#1b8f2e}.aqi-moderate{color:#e68a00}.aqi-poor{color:#d32f2f}