Designed by Jin Weixiong, a senior designer from the China Academy of Art. The composition style of staggered horizontal and vertical lines, which is close yet distant, directly expresses a rhythm common to nature and music. When this order and rhythm are applied to the design of this door, the strong color collision of Mondrian itself is stripped away, the most pure square grid composition space is retained, and combined with Chinese patterns of waves and auspicious clouds, a picture with a unified pattern and line structure is created. The waves are derived from "river cliffs and sea water", which means continuous auspiciousness and eternal stability of the country.