In the long journey, passengers need different environmental atmospheres to adapt to the current activities, lighting will have a direct impact on people's emotions, NIO Cepheus can control the external ambient light entering the interior space and the interior light to create an atmosphere suitable for the current user needs, the sunroof can change its own transparency to control the interior lighting environment, users can choose a variety of atmosphere modes, even if you want to rest during the day or work at night.