远山回声测试

生成一张「远山回声测试」海报，画幅 2:3，用于一场小型公共文化活动。使用“远山轮廓重复三次对应回声延迟”解释活动主题，真实接缝和受力痕迹优先于装饰效果。整体依照偏心竖构图组织，留白只用于强化核心隐喻，让“远山轮廓重复三次对应回声延迟”保持第一视觉中心。请准确排出「远山回声测试」与「慢一点，细节才会出现」，并在信息区写明「桥下声场」「携带有线耳机」。分贝刻度、线缆弧线和吸音毡负责说明尺度和参与方式。纸材采用蓝晒声谱叠加压凹波纹，墨边与折痕局部出现，配色为烟灰、奶油白、警示红与夜蓝。让单束投影白光统一色温和影向，主物之外的区域维持低对比。关键信息远离裁切线，海报纸张直接铺满画幅，并为「远山回声测试」的活动信息留足空间。排除展示环境、扫码入口、品牌、公众人物、IP 和科技界面，保持「远山回声测试」的公共活动语气。

Create a “Distant Mountain Echo Test” poster in a 2:3 frame for a small public culture event. Use one mountain outline repeated three times to measure successive echo delays to explain the event, prioritizing real seams and load traces over decoration. Organize the artwork through an asymmetric vertical composition, using negative space only to strengthen the metaphor. Typeset “Distant Mountain Echo Test” and “Slow down and the details will appear” accurately, then state “the acoustic space beneath the bridge” and “bring wired headphones” in the information region. Use decibel marks, cable arcs, and acoustic felt to explain scale and participation. Print on a cyanotype sound spectrum over debossed wave ridges, with local ink edges and folds, in smoke gray, cream white, warning red, and night blue. Let a single projected beam of white light unify temperature and direction while the space outside the hero remains low contrast. Move essential copy away from trim and let the paper fill the frame. Exclude display settings, scan entries, brands, public figures, IP, and tech interfaces. For the final rendering, construct the hero from ordinary matter rather than digital spectacle: one mountain outline repeated three times to measure successive echo delays. Use overlaps sparingly; each overlap should explain which piece sits above or below the other. Allow the paper grain to remain visible in open areas without turning it into an aging effect. 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 2:3; no variants, process sheet, split panels, mockup frame, or contact sheet.