How to take the subway from Guangzhou South to Zengcheng Square?

According to Baidu map query, the ride method is as follows:

Walk about 680m, get on the bus at Guangzhou South Railway Station, take Metro Line 7 (University South) and get off at Station 8 South of Higher Education Park, get on the bus at the South of Higher Education Park, get off at Huangcun Station by Metro Line 4 (direction of Huangcun), get on at Huangcun Station and get off at Zengcheng Square Station by Metro 2 1 (direction of Zengcheng Square), and walk about 10 meters.