Gongbi (literally 'meticulous brush') is the careful realist technique of Chinese painting, the disciplined counterpart to the free, expressive xieyi manner. Its beginnings reach back roughly two thousand years to the Han dynasty, and it peaked between the Tang and Song dynasties, when refined gongbi paintings were commissioned and collected by the imperial family and produced in palaces and wealthy households. The method starts with precise ink outlines that delimit every detail, then builds the image through successive transparent washes of ink and color, often on sized silk or cooked xuan paper, until the surface glows with tightly controlled, luminous color. Subjects are typically figurative and narrative - court ladies, sages, birds-and-flowers, historical scenes - and the related ruler-aided architectural rendering (jiehua) belongs to the same meticulous tradition.