China operates the world longest high-speed rail network, at up to 350 km/h, covering over 90% of cities with 500k+ population.
Tickets: 12306 (English available) or Ctrip; foreign passports work, some stations need the manual lane for verification.
Train types: G (high-speed) and D (faster stopping); seats are business, first and second class - second class is the best value.
Process: arrive 30-60 min early, security, enter with passport, find your gate, board ~15 min before departure.
On board: Wi-Fi on many trains, sockets, dining car or seat-side delivery; reclining seats and generous legroom.
Highlights: Beijing-Shanghai (4.5h), the mountain-crossing Chengdu-Chongqing line, and Harbin-Dalian through winter plains.
