One reason is that your campus network has a firewall and you can only access the Baidu website. The other reason is that the browser caches Baidu's static pages, so you cannot actually access Baidu.
I think the school has set up a WEB proxy server to allow you to open Baidu web pages. I don't know much about the school's network. I guess the school's authentication server and gateway have been set up. Only after passing the authentication can you access the network outside the school gateway. Otherwise, you can only access various services on the school's internal network.
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One reason is that your campus network has a firewall and you can only access the Baidu website. The other reason is that the browser caches Baidu's static pages, so you cannot actually access Baidu.
I think the school has set up a WEB proxy server to allow you to open Baidu web pages.
I don't know much about the school's network. I guess the school's authentication server and gateway have been set up. Only after passing the authentication can you access the network outside the school gateway. Otherwise, you can only access various services on the school's internal network.