Why does the screen color of the Xiaomi 15 change at night when enabling the Cycle reading mode?

If the screen color of the Xiaomi 15 changes at night when enabling Cycle reading mode, please refer to the following details:
1. When you enable reading mode on the phone, the screen color changes to reduce blue light and make it more comfortable for your eyes, especially in low-light conditions;
2. The Cycle reading mode will dynamically adjust the screen color temperature to improve the screen experience and enhance your comfort at different times and scenarios throughout the day;
3. If you want to further adjust the screen color temperature or fix it at a certain color temperature value, you can switch to the Classic reading mode and customize the color temperature. Thank you for your use.