According to the provisions of Article 21 of the Interim Measures for Railway Internet Ticket Selling, if you use your resident ID card to purchase tickets on the website, and both the bus stop and the next stop have the conditions for checking tickets with your resident ID card, you can directly go through the check-in procedures for entering and leaving the station with the original valid resident ID card of the passenger used at the time of ticket purchase.
The entry and exit records made by the automatic ticket checking machine (gate) when reading the resident ID card are the starting and ending vouchers of the railway passenger transport contract respectively.
relevant information
"Interim Measures for Railway Internet Ticket Selling" Article 25 If a passenger needs to exchange a paper ticket after taking a bus, it shall not do so within a time limit not later than 30 days from the date of boarding the ticket, and the paper ticket exchanged is only used as an reimbursement voucher.
Article 26 If a passenger who uses a resident ID card as a boarding certificate has an accident at a station or train, the station staff shall record the identity information such as the resident ID card number in the passenger record, and the accident file shall be accompanied by a copy of the resident ID card.
Refer to the above contents: 12306- Interim Measures for Railway Internet Ticket Sales.