❓What can I do about limited vegetarian options at airports and on high-speed trains?

For high-speed trains, you can pre-order a "train meal" through 12306 or a third-party platform — some routes offer a simple vegetarian option (you'll need to book about a day ahead, and the choices are limited, but it beats buying whatever's available once you're on board). At airports, convenience store nuts, fruit, some rice balls or sushi (just double-check there's no meat or fish), and soy milk can tide you over in a pinch. Decent airport restaurants these days usually have a vegetarian noodle dish or bento option too — try searching "vegetarian" on a map app to filter the restaurants in the terminal. For long trips, I'd personally recommend packing some shelf-stable food of your own (nuts, energy bars, vacuum-packed braised dried tofu, fruit) so you're not entirely relying on what you can find along the way — it just gives you more peace of mind.