First of all, CLV Parachain does not have staking feature, only CLV Mainnet has.
The minimum amount to stake is dynamic. It can move up or down depending on the nominations and the election solutions. Nominators with a stake smaller than this amount may not currently be receiving staking rewards.
What is the maximum number of delegators per candidate?
What is the maximum number of delegations per account?
How long is a period (ERA)?
About 6 hours
What is the bond duration?
Next ERA, which means the maximum is 6 hours
What is the unbond duration?
How is the staking reward distributed?
It's distributed by ERA, anyone can make the claim at any time. The reward will not be slashed.