首创模拟天界的理想都城，洛阳、长安城的启蒙

Core Viewpoint - The article discusses the significance of the Sanxingdui site in ancient Chinese civilization, highlighting its advanced urban planning and cultural achievements, particularly the concept of "Law as a Reflection of Heaven" in city construction [1][2][20]. Urban Planning and Architecture - The Sanxingdui ancient city covers an area of 3.6 square kilometers, making it one of the largest cities of its time, second only to the Zhengzhou Shang City [4]. - The city features a well-defined layout with four functional zones: a sacrificial area, a handicraft workshop area, a palace area, and a residential area [10][15]. - The city walls, constructed using earth and early forms of adobe bricks, reflect advanced construction techniques and the need for defense as populations grew [6][7][3]. Cultural and Philosophical Significance - The urban planning philosophy of "Law as a Reflection of Heaven" symbolizes the connection between the earthly realm and the cosmos, illustrating the inhabitants' understanding of their place in the universe [2][16]. - The layout of the city, with its rivers and walls, represents a philosophical division between the human and divine, suggesting a complex social structure [17][18]. Historical Influence - The planning ideas from Sanxingdui influenced later cities, including the Qin capital of Xianyang, Han capital of Chang'an, and the Sui-Tang capital of Luoyang, showcasing the enduring legacy of this urban design philosophy [19][20][22]. - The article contrasts the "Law as a Reflection of Heaven" concept with the "Scaling the Earth" approach, which became more prevalent in later dynasties, indicating a shift in urban planning ideologies [21][22].