Theme direction: Oriental Zen Minimalist Poster. Style branch: High-contrast solar term type. Main content: A person walking slowly upwards along long steps. Emotional motif: Clear autumn day, upward movement, vitality within stillness. Scene and imagery: Lemon yellow ginkgo leaves, indigo blue stair shadows, cold white walls, person's silhouette. Composition and space: Depth composition, long steps extending upwards, person located in the lower-middle part, ginkgo leaves dotted on the steps and in the white space areas. Color control: Cold white as the wall and background base, indigo blue for stair shadows and spatial layers, lemon yellow for the ginkgo leaves as highlights, ink gray for the person's outline; avoid the overall image turning yellow. Light and texture: Bright natural light, light paper feel, clear edges, slight grain. Aspect ratio: 9:16. Additional requirements: Stairs should be minimalist, ginkgo leaves few but striking, overall lightweight and transparent.