为被遗忘的楼梯绘制声音标线的粉笔队：敲击每级台阶听回声

画面中心事件：为被遗忘的楼梯绘制声音标线的粉笔队在闭馆后的图书馆回旋楼梯敲击每级台阶听回声，再用粉线标出声音最温暖的位置。成片用途：独立插画季刊封面。以方形中心构图被一条动作方向打破，主体周围不堆装饰符号组织 1:1 画面。现场光色按苔藓绿、木炭褐、乳白和微量荧光黄；亮暗由所选手工媒介的叠层和留白形成，不使用塑料高光或摄影光斑处理。用木刻般的粗线与两次淡彩套印，黑块保持呼吸，不做数码渐变完成画面，并保持原创造型、手工媒介边缘、清楚动作与克制留白。与手部动作直接接触的材料必须满足主体边缘保留手工媒介痕迹，动作接触处清楚，不增加无关装饰。画面只展开这一动作：动作分层：前景清楚呈现「敲击每级台阶听回声」，中景以「再用粉线标出声音最温暖的位置」交代结果，两层之间不插入其他事件。让「为被遗忘的楼梯绘制声音标」的「敲击每级台阶听回声」直接导向「再用粉线标出声音最温暖的位置」；背景只解释「闭馆后的图书馆回旋楼梯」。文字规则：画面完全无字，不出现数字、品牌、签名或水印。同时不模仿在世艺术家，不使用现成 IP、廉价塑料 3D、伪签名或水印。

Enter a library spiral stair after closing and show only a chalk crew drawing sound markings for forgotten stairways as the subject taps each stair for its echo and marks the warmest-sounding position with chalk thread. Produce a cover for an independent illustration journal to publication standard. Frame the scene with a square centered composition broken by one action direction, with no decorative symbols crowded around the subject and deliver it in 1:1. Lighting and color: moss green, charcoal brown, warm ivory, and a trace of fluorescent yellow; light and dark emerge from layers and negative space in the chosen handmade medium, without plastic gloss or photographic flare. The medium is woodcut-like bold lines with two pale color registrations, leaving air in the black shapes and avoiding digital gradients, with precise control of original forms, handmade medium edges, clear action, and restrained negative space. Action-related materials: retain handmade marks at subject edges and keep the contact point clear, without unrelated decoration. Action reading order: Keep the full action “taps each stair for its echo and marks the warmest-sounding position with chalk thread” in one continuous plane, with its contact point and result both visible. Let “a chalk crew drawing sound markings for” lead from “taps each stair for its echo and marks the” to “taps each stair for its echo and marks the”; the surroundings explain only “a library spiral stair after closing”. Handle text only as follows: place no text, numerals, brands, signatures, or watermarks anywhere. Necessary exclusions: Do not imitate a living artist or use existing IP, cheap plastic 3D, false signatures, or watermarks. Final art direction: original handmade mixed-media illustration with matte mineral pigments and visible paper fibers. Use this controlled palette as the dominant visual system: #D8C18E, #657A52, #6D6A63, #E6A07A; preserve believable local material colors within it. Keep any text absent or minimal unless the source brief explicitly requires it; never add logos, signatures, 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 1:1; no variants, process sheet, split panels, mockup frame, or contact sheet.