Create a bright and clear flat poster-style image centered around specific theme content. First, transform the core keywords of the theme into a line of extremely thick sans-serif large characters, let the letterforms form a huge structural background at the top of the image. The surfaces of the characters feature subtle paper textures and semi-transparent printed grains, with portions naturally cropped by the boundaries of the image, serving only as a clear visual wall without excessively overshadowing the main subject. Place the main subject near the central axis of the frame, use a line-drawn container resembling a childhood handmade cutout to support the theme's symbolic objects: the container is represented by a single-line outline, the rim and bottom use elliptical lines to form a transparent space, and inside, several slender straight stems, rounded blunt leaves, and simplified block-shaped flower forms emerge, shapes look like layered paper cutouts, with edges that are clean, geometric, and carry slight handmade imperfections. The information layer remains sparse, scatter small-sized months, numbers, or theme node text on both sides of the main subject using rounded bold fonts, colors correspond and echo with the small graphics; at the bottom, keep two sets of short paragraphs and a tiny signature-style footer, letter spacing and line spacing are tight but still clear, creating the reading rhythm of a childlike infographic. Colors are extracted from the theme's own season, material, and emotion: the background takes up a large area of high-brightness clean ground, the main title uses bright structural colors that can vary between warm and cool, the main subject's stems or framework use clear, high-saturation support colors, flowers or symbolic blocks use a small amount of bright accent colors, and small text is assigned from these accent colors; overall maintaining a bright and light feel, strong airiness, clear color levels, saturated but not muddy, paper texture only provides a soft tactile feel without creating a sense of age. The focus of the image is the scale contrast between the oversized text background and the central line-drawn container, as well as the lighthearted order of childlike graphics, negative space, and small informational text.