Core Viewpoint - The 15th National Games, co-hosted by Guangdong, Hong Kong, and Macau, showcases the integration of the Greater Bay Area through seamless cross-border events and enhanced connectivity, facilitating rule alignment and infrastructure development [1][8]. Group 1: Event Highlights - The men's individual road cycling race marked the first cross-border cycling event in the history of the National Games, with over 100 athletes crossing borders six times without stopping [3]. - Athletes experienced "seamless customs clearance," while multiple ports established "green channels" for registered participants, allowing for a 7-second facial recognition entry in Hong Kong [5][7]. Group 2: Infrastructure and Connectivity - The Greater Bay Area is achieving "hard connectivity" through infrastructure projects like the Hong Kong-Zhuhai-Macao Bridge and the Shenzhen-Zhongshan Bridge, and "soft connectivity" through regulatory alignment, creating a "half-hour traffic circle" and "one-hour living circle" [8]. - The implementation of the "Yue Car South" policy on November 15 will facilitate easier travel for mainland residents to Hong Kong, with over 7.68 million trips made by "Northbound" vehicles since the policy's introduction [10]. Group 3: Economic Collaboration - The Greater Bay Area has released 262 "Bay Area Standards" across 36 sectors, with over 8,000 professionals from Hong Kong and Macau practicing in Guangdong, and cross-border financial services exceeding 120 billion yuan [12]. - The region's economic output is projected to reach 14.79 trillion yuan in 2024, positioning it among the top global economies, with enhanced trade cooperation opportunities [13]. Group 4: Logistics and Trade Efficiency - The logistics process has improved significantly, with a 30% reduction in time and costs for goods transported from Dongguan to Hong Kong, thanks to collaborative customs and airport management efforts [15]. - The establishment of a national technology innovation center and the recent investment conference resulted in 2,073 projects worth 2.03 trillion yuan, highlighting the Greater Bay Area's attractiveness for global investment [17].