Can I link my bank account to Okcoin?

I'm curious about the capabilities of Okcoin, specifically in regards to linking my bank account. Is it possible to seamlessly connect my bank account to Okcoin for easy deposits and withdrawals? I understand security is a top priority, so I'm wondering if there are any steps or precautions I should take to ensure a smooth and secure process. Additionally, are there any fees associated with linking my bank account to Okcoin, and if so, how are they calculated? I would greatly appreciate any insights or guidance you can provide on this matter.