Group 1 - The core idea emphasizes the importance of building green and low-carbon beautiful cities as a fundamental practice of Xi Jinping's ecological civilization thought, which is essential for achieving sustainable development in China [1][2] - The shift in urban development philosophy from "materialism" to "humanism" is highlighted, focusing on creating a livable environment for people and prioritizing their needs [2][3] Group 2 - Optimizing urban spatial structure is identified as a prerequisite for building beautiful cities, advocating for a systematic approach to urban planning that avoids fragmented development and resource wastage [3][4] - The necessity of green and low-carbon transformation is underscored as a core pathway for urban development, promoting the integration of ecological priorities into all aspects of urban planning and management [4]