Actresses stage a folk performance for passengers on the platform at Harbin Railway Station in Harbin, northeast China's Heilongjiang Province, on Dec. 22, 2025. Train K7041, the first northeast folk culture-themed train operated this winter, departed from Harbin Railway Station and headed for Mohe City on Monday. (Xinhua/Wang Song)

Actresses stage a folk performance for passengers on the platform at Harbin Railway Station in Harbin, northeast China's Heilongjiang Province, on Dec. 22, 2025. Train K7041, the first northeast folk culture-themed train operated this winter, departed from Harbin Railway Station and headed for Mohe City on Monday. (Xinhua/Wang Song)

This photo taken on Dec. 22, 2025 shows a sleeping compartment of Train K7041 at Harbin Railway Station in Harbin, northeast China's Heilongjiang Province. Train K7041, the first northeast folk culture-themed train operated this winter, departed from Harbin Railway Station and headed for Mohe City on Monday. (Xinhua/Wang Song)

A passenger is seen on Train K7041 at Harbin Railway Station in Harbin, northeast China's Heilongjiang Province, on Dec. 22, 2025. Train K7041, the first northeast folk culture-themed train operated this winter, departed from Harbin Railway Station and headed for Mohe City on Monday. (Xinhua/Wang Song)

Passengers walk past Train K7041 at Harbin Railway Station in Harbin, northeast China's Heilongjiang Province, on Dec. 22, 2025. Train K7041, the first northeast folk culture-themed train operated this winter, departed from Harbin Railway Station and headed for Mohe City on Monday. (Xinhua/Wang Song)