if the appearance of your package is enough to lead consumers to mistake it for another package, then your behavior infringes the copyright of the designer of that package.

At the same time, it also violates the relevant provisions of the Anti-Unfair Competition Law.

whether it will be dealt with or not depends on luck. If the parties don't know, no one will claim the right and no one will deal with it.

imitation of other people's designs or trademarks constitutes infringement as long as it is misleading. There is no way to break through.

if you want to imitate, you have to take the risk of being investigated for legal responsibility. No matter how big the risk is, it won't happen.