Large Updates — Light Steam update #21304

Level: pause time level adds double door switch play Art: Cancel the global static shadow and increase the dynamic post effect 1. Improve the initial rainy day art and update the background 2. Improve the level art of the ruins building, update the corresponding models and special effect assets 3. Improve the art of the pause time gate, and update the corresponding models and special effect assets 4. Delete the black and white world after the end of the fantasy world, and create a new color map to enhance the explanation of the cause of the game 5. Optimize small level art of boxing car 6. Update CCBY music producers and links, Map UI and sound effects Sound effect 1. Improve the overall sound effect of the ruins building 2. Improve the pause time level sound effect 3. Improve the sound effect of color world level 4. Add small level sound effect of boxing car Pause time level teaching