铁路边的向日葵

以「铁路边的向日葵」为主题完成 16:9 招贴，避免商业促销语气。唯一记忆点锁定为“铁路护栏影子变成向日葵茎”，任何次级元素都不得改变它的阅读方向。版式定为偏心竖构图；观者先看到物件变化，再读标题和参与信息，服务于「铁路边的向日葵」的单一视觉命题。用「铁路边的向日葵」建立第一层级，以「为普通人的经验留一个位置」承接主题，最后清楚标注「临河观察台」「穿防滑鞋并带铅笔」。真实比例标本、风向线和水汽负责说明尺度和参与方式。纸材采用双色丝网印刷与矿物颜料薄层，墨边与折痕局部出现，配色为雨蓝、墨黑、纸白与玫瑰红。只用阴天漫射天光塑造结构，禁止额外轮廓光或霓虹边缘。四边保留 5% 裁切安全区，小字在最终尺寸下可读，并为「铁路边的向日葵」的活动信息留足空间；不展示墙面样机、手持效果、二维码、商标、名人、现成角色、HUD 或发亮厚字。

Complete a 16:9 placard around “Sunflowers by the Railway” without promotional sales language. Keep the shadow of a railway guardrail becoming the stem of a sunflower as the one memorable idea and prevent supporting elements from changing its reading direction. Set an asymmetric vertical composition. The viewer encounters the object change before the headline and participation details. Use “Sunflowers by the Railway” for the first level, “Leave room for ordinary experience” for the idea, and “the riverside observation deck” with “wear nonslip shoes and bring a pencil” for practical detail. Use true-scale specimens, wind-direction lines, and moisture to explain scale and participation. Print on two-color screen printing with thin mineral-pigment layers, with local ink edges and folds, in rain blue, ink black, paper white, and rose red. Use only diffuse overcast daylight to reveal structure and add no rim glow or neon edge. Keep a five-percent trim-safe margin and preserve small-copy legibility. Show no wall mockup, handheld view, QR code, trademark, public figure, existing character, HUD, or luminous dimensional type. For the final rendering, have the physical change occur within one continuous object: the shadow of a railway guardrail becoming the stem of a sunflower. Keep the source object recognizable at the point where it changes, and reveal one seam that explains the construction. At thumbnail size, the silhouette should still communicate the event before any small copy is read. Final art direction: editorial poster design with a disciplined grid and material-aware composition. Use this controlled palette as the dominant visual system: #F2EBDD, #243447, #C65D48, #D6A14B; preserve believable local material colors within it. Preserve the requested text hierarchy and wording as part of the design, but do not invent extra slogans, pseudo-text, logos, or watermarks. Keep one unmistakable primary subject or information route and one readable visual action. Use disciplined negative space and avoid default perfect symmetry. Physical credibility is mandatory: correct gravity, contact shadows, material thickness, tool weight, joint loading, fabric tension, liquid direction, reflections, scale, and occlusion. Create an original visual with no resemblance to a public figure, copyrighted character, existing campaign, or living artist signature style. No unrelated decorative icons, floating objects, duplicated limbs, plastic gloss, waxy skin, synthetic collage artifacts, or AI watermarks. Return exactly one finished image composed for 16:9; no variants, process sheet, split panels, mockup frame, or contact sheet.