Under the Taxi Operating Service Standards (GB/T 22485-2021) and ride-hailing specifications, what is the baseline requirement for vehicle interior cleanliness?

1. The cabin should be filled with used takeout food containers to create a home-like atmosphere
2. The interior must be neat, clean, free of dust, trash, or peculiar odors (e.g. tobacco smell), with tidy seat covers and clear floor mats
3. The seats must be covered with industrial plastic wrap at all times
4. Cleanliness is only required once every 12 months during annual vehicle inspection