24 hour tranist without visa

I have a flight from Franfurt to Cairns ( Australia) that transits though China for less than 24 hours.
My Flight Arrives in Changza at 7am stops for 1 hour ( same departure terminal) then has a 11 hour stop in Guangzhou before flying to Cairns at 11 pm that night. I am planning on just staying in the airport the whole time. Does this mean I am in the - 24 hr transit without visa - category? as depicted in the first picture.
Thanks Mark