As an AI text-based model, I can help you with the code for a simple Temple Run-inspired endless running game using JavaScript within a single HTML file. However, please note that creating a full-fledged 3D game with pictograms for smartphone operation would require extensive coding and additional resources. Here's a basic implementation to get you started:
This code sets up a basic game container with a player represented as a red square. The player can be moved left and right using the arrow keys. However, please note that this is just a starting point, and developing a full-featured Temple Run-like game would require a lot more effort, including graphics, physics, and game logic.
Feel free to enhance this code by incorporating additional game mechanics, creating obstacles, adding a scoring system, integrating 3D graphics, or using pictograms as game assets.