Group 1 - The construction of the Shenzhen-Zhongshan Bridge has significantly shortened travel time between Shenzhen and Zhongshan to half an hour, facilitating the accelerated flow of talent, capital, and technology within the Guangdong-Hong Kong-Macao Greater Bay Area [2] - New industrial collaboration models such as "Shenzhen headquarters + Zhongshan manufacturing" and "Shenzhen R&D + Zhongshan transformation" are emerging, indicating a robust integration of industries between the two cities [2] - The "Bay Area Standards" have reached a total of 235 items as of May this year, reflecting the continuous improvement in market integration levels among Guangdong, Hong Kong, and Macao [3] Group 2 - The Shenzhen-Zhongshan Bridge has recorded over 3 million passengers since its opening, highlighting its role in enhancing cross-city public transport [1] - The local government in Zhongshan has implemented over 300 administrative service items to facilitate cross-city operations for Shenzhen enterprises, promoting a seamless business environment [2] - The ongoing development of cross-river and cross-sea channels in the Greater Bay Area is contributing to the formation of a "railway-based Greater Bay Area," enhancing connectivity and convenience for residents [3]