Official website, China Railway Customer Service Center website (12306) booked tickets without any tying.
If you encounter similar requirements, you must take out accident insurance.
You are on a phishing website, please log on to the official website in time. Avoid the disclosure of personal identity information.
12306 official website does not need to buy insurance when purchasing tickets, and 12306 does not sell any traffic accident insurance on its behalf.
I wish you a smooth ticket purchase and a pleasant journey.
Please accept it if you are satisfied, O(∩_∩)O Thank you.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.