How many visas are required to travel from the mainland to Macau, then to Hong Kong, and finally back to the mainland?

When traveling from the mainland to Macau, then from Macau to Hong Kong, and finally from Hong Kong back to the mainland, how many visas are required? Does the trip have to be completed within 7 days?
According to the regulations of the Hong Kong Immigration Department, if the itinerary sequence is Mainland → Hong Kong → Macao → Hong Kong → Mainland, and the total stay in Hong Kong and Macao does not exceed 7 days, the Macao leg is considered an “incidental itinerary” and only Hong Kong is required , Macao endorsement once each. If the trip is within 7 days, only 1 Hong Kong endorsement and 1 Macao endorsement are required. If the trip exceeds 7 days, 2 Hong Kong endorsements and 1 Macao endorsement are required.
Is it possible to fly from the mainland to Macau and then return to Zhuhai from Gongbei Port?
One Macau endorsement + one Hong Kong endorsement is enough
One endorsement for Macau and one endorsement for Hong Kong are enough.
You only need to endorse Macau and Hong Kong once each.
Two visas, one for Macau and one for Hong Kong

According to the regulations of the Hong Kong Immigration Department, if the itinerary sequence is Mainland → Hong Kong → Macao → Hong Kong → Mainland, and the total stay in Hong Kong and Macao does not exceed 7 days, the Macao leg is considered an “incidental itinerary” and only Hong Kong is required , Macao endorsement once each. If the itinerary is within 7 days, only 1 Hong Kong endorsement and 1 Macau endorsement are required. If the itinerary exceeds 7 days, 2 Hong Kong endorsements and 1 Macau endorsement are required.
Is it possible to fly from the mainland to Macau and then return to Zhuhai from Gongbei Port?
One Macau endorsement + one Hong Kong endorsement is enough
One endorsement for Macau and one endorsement for Hong Kong are enough.
You only need to endorse Macau and Hong Kong once each.
Two visas, one for Macau and one for Hong Kong