I am responsible for telling you that the main entrance of Fudan University (that is, "the largest campus in Handan Road" as you said) is in Handan Road.

The specific address is 220 Handan Road, the telephone number is 02 1-65642222, and the postal code is 200433.

Supplementary answer:

There is a side gate (east gate) of Fudan University at the intersection of Guoshun Road in Handan Road. Go west along Handan Road for about 50 meters, and you will reach the main entrance.

Reminder:

There is no sidewalk across Handan Road in front of the main entrance, but several side doors have sidewalks across the road. Of course, if you take a photo, you should take the main entrance, but if you are looking for someone, meeting friends and just having fun, why not just take the side door next to the "Handan Road minzu road" you mentioned.

Conclusion:

Welcome to Fudan. Have a good time.