“跨城打卡”中的协同功夫（评论员观察）

Group 1 - The article emphasizes the importance of maintaining an open attitude and enhancing cross-regional and cross-industry collaborative services to activate innovation and achieve high-quality economic development [1][2][3] - The introduction of "fan trains" by the railway department to cater to concert-goers reflects the growing trend of the "concert economy," with 64.2% of large concert attendees traveling across cities [1][2] - The report highlights the significance of a unified national market and efficient collaborative services as essential components for enhancing consumer experience and stimulating consumption [2][3] Group 2 - The establishment of a nationwide transportation card system has led to interconnectivity across 336 cities and 1760 counties, facilitating convenient travel for cross-city tourists [2] - The "one code for all" initiative in the Beijing-Tianjin-Hebei region has successfully integrated nearly 3000 cultural and tourism enterprises, enhancing the travel experience for users [2] - The article discusses the collaborative efforts in the Yangtze River Delta region, showcasing how local products can gain popularity in larger markets, exemplified by the "Gao Pin Ru Hu" event in Shanghai [3][4]