Frost dyed autumn mountain geometric poster

Generate a bright and clean activity visual around any theme object: the frame uses a large area of pure white space as an airy background, making geometric symbols derived from the theme the first subjects to be seen, using multiple flat triangles, angles, or peaked blocks staggered and interlaced with each other to form a sense of layer-by-layer progression like mountains; the main blocks occupy the center and edges of the frame, allowing some forms to be cropped by the frame, while other smaller forms hang at the top or bottom to form an echo, maintaining a strong diagonal reading path. The theme text uses an extra-large scale mixture of Chinese and English, Chinese strokes are thick, square, with a small amount of rounded corners or cuts, English uses wide and flat geometric sans-serif fonts, text can be cropped by edges or blocked by graphics, so that characters and graphics compete for space without being completely separated. Colors are derived according to the theme, but maintain three roles: a large area of high-brightness clean white background, the main subject uses medium-saturation, relatively stable natural colors or theme primary colors, text and thin lines use low-brightness warm gold, earth gold or warm support colors within the theme, with a very small amount of cold-colored thin diagonal lines as speed and direction hints; overall brightness is high, saturation is restrained, boundaries are clean, no dirty or old particles. Graphics are vector poster texture, block flat coating, outer edges have extremely thin strokes or same-color outlines, internal can add a small amount of wireframe triangles and slender diagonal lines, allowing slight movement in empty spaces. Information layout maintains a poster-style rhythm: top places small logos and date-style short messages, middle retains tiny explanatory text, corners can place small black and white identification-code-style blocks and action phrases, all small words are low-key, tight, clearly aligned, only as rhythm points. Avoid real depth of field, photographic texture, complex gradients and excessive decoration, focusing on retaining the refreshing festival poster temperament of large blocks of geometric symbols and giant text pressing, interlacing and cropping each other in white space.

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Theme: Frost-dyed autumn mountain activity poster, continuing the refreshing national style activity visual of stacked mountains and large characters
Color scheme: Frost white with ochre red and dark brown, cold blue lines emphasizing chilliness
Layout: Giant characters interlaced with sharp mountain shapes, bottom information is stable and concentrated
Information: Presenting 3 information points: solar term date, cooling reminder and activity arrangement
Imagery: White frost, persimmon fruits and red-dyed mountains
Aspect ratio: Vertical 3:4