As China's first cross-border smart port, the Youyiguan Smart Border Gate in Pingxiang, Guangxi Zhuang Autonomous Region harnesses a 5G-powered intelligent dispatch and advanced automation to streamline customs clearance and enhance logistics efficiency, boosting trade between China and Vietnam. Beyond cargo flows, it also promotes people-to-people connections through flexible cross-border travel policies, deepening regional ties and fostering vibrant exchanges along the China–Vietnam border. (Bian Ce, Zhou Xinyi, Liu Yixuan, Sun Yuting, Liu Xiangqi, Liu Xueru, Qiang Jiayi)