My husband [Indian Citizen/Permanent Resident of Hong Kong] has been working in Guangdong Province in China on a 'Z' visa (with Residency Permit) for the past 3 years. I hold a dependent visa in China and am also a 'Hong Kong Resident'. My questions are
1. As a dependant of a 'Z' visa holder, am I not allowed to work anywhere in China? Do I need a valid employment visa of my own?
2. Are the rules any different for Hong Kong residents who wish to work in Shenzhen?

Thank you for your time