Infinite Stairway Pale Courtyard

A clean architectural illustration of an impossible courtyard built from pale lime-washed plaster walls and travertine steps, drawn in the spirit of geometric paradox without copying any specific famous lithograph. The square courtyard contains four stairways that begin at the four cardinal walls and meet in mid-air at the center, where they form a closed loop that has no consistent up or down. A small lone figure in a sandstone-colored linen tunic stands on one step, hands clasped, looking calmly toward a step that is simultaneously above and beneath them. Walls have soft chamfered edges and three small unglazed arched windows each. Floor of the courtyard is a quiet sand-toned tile. Sky overhead is a graded pale apricot fading to dusty rose at the corners. Light is high noon but soft, with shadows behaving inconsistently to support the paradox: each stairway is lit as if from its own sun. Color palette is pale lime, sand, warm white, dusty rose, and the figure's quiet terracotta. The drawing style is precise vector-like with a faint paper grain. No text, no signs, no surrounding cityscape.

一张干净的建筑插画：一个不可能的庭院，由淡石灰浆抹白的墙面与米黄洞石台阶构成，遵循几何悖论精神而不抄袭任何具体名作版画。方形庭院内，四道阶梯从四面主墙基开始，于空中相遇形成一个无统一上下的封闭循环。一名身穿砂岩色亚麻长袍的孤独人物站在某一级台阶上，双手交握，平静地望向一级既在头顶又在脚下的台阶。墙体边缘软倒角，每面墙上有三扇小拱形无窗框开口。庭院地面为安静的砂色地砖。头顶天空从淡杏色渐变至四角的灰玫瑰色。光线是柔和的正午，阴影刻意不一致以支撑悖论：每条阶梯都像由各自的太阳照亮。配色：淡石灰、砂、暖白、灰玫瑰，与人物安静的赤陶。绘制风格精确，近似矢量，带极淡纸纹。无文字、无标牌、无外部城景。