1 ... Many talent websites associate resume submission with HR's e-mail, and many HR will check it directly in the e-mail to save trouble, instead of logging in to the website every time, so it is unread.

There must be many people who like the company you like, so the shipment will be larger. HR doesn't have that much time to look at them one by one. It only depends on education and work experience. Those who do not meet the requirements will basically not open.