公共浴室值夜人：检查蒸汽阀门后给等候的人挂出可以入场的木牌

交付目标是地方田野观察季刊封面。主体为公共浴室值夜人，位于蒸汽凝在高窗上的老浴室，正在检查蒸汽阀门后给等候的人挂出可以入场的木牌。光线与配色：苔藓绿、木炭褐、乳白和微量荧光黄；使用现场自然光，主体接触处对比最高，远景不过度虚化。镜头采用中近景三角构图，手部、眼神和关键工具构成三个视觉锚点，背景压低对比，输出 3:2。媒介为真实环境摄影，保留自然皮肤、磨损表面与空气透视；镜头焦点紧随手部动作，背景层次由现场光线自然形成，重点控制机械连接、磨损位置、工具咬合和操作手势。核心物件质感按木竹表面保留纹理、切口与受力压痕；金属磨损集中在握持、转轴和接触边缘处理。动作阅读顺序：镜头只解释「检查蒸汽阀门后给等候的人挂出可以入场的木牌」的起点、接触点和结果，不增加第二事件。让「公共浴室值夜人」在「蒸汽凝在高窗上的老浴室」完整完成「检查蒸汽阀门后给等候的人挂出可以入场的木牌」，起点、接触处和结果都能读懂。文字仅按画面完全无字，不出现数字、品牌、签名或水印处理。不要网红滤镜、蜡像磨皮、重复肢体、假标志或 AI 水印。

Finished use: a cover for a local field-observation journal. The central event is overnight public-bath attendant at an old bathhouse with steam condensing on high windows, where the subject checks a steam valve and hangs a wooden entry sign for people waiting. Use this lighting and palette: moss green, charcoal brown, warm ivory, and a trace of fluorescent yellow; use available natural light, with highest contrast at the action contact and no excessive background blur. Build the composition as a medium-close triangular composition whose anchors are the hands, gaze, and essential tool, with reduced background contrast, output in 3:2. Use environmental photography preserving natural skin, worn surfaces, and atmospheric depth; focus follows the hand action while location lighting creates the background layers naturally; mechanical connections, wear placement, tool engagement, and operating gesture must remain clear and credible. Material detail is limited to timber and bamboo retain grain, cuts, and load compression; metal wear stays on grips, pivots, and contact edges. Expand only this action: The camera explains only the beginning, contact point, and result of “checks a steam valve and hangs a wooden entry sign for people waiting,” without adding a second event. Show “overnight public-bath attendant” completing “checks a steam valve and hangs a wooden entry sign for people waiting” inside “an old bathhouse with steam condensing on high windows,” with a readable start, contact point, and result. Typography: place no text, numerals, brands, signatures, or watermarks anywhere. Also apply this exclusion: Use no influencer filter, waxy retouching, duplicated limbs, false logos, or AI watermarks. Final art direction: environmental documentary photography, natural skin and worn working surfaces. Use this controlled palette as the dominant visual system: #39505E, #E9E3D5, #B58A42, #D85B37; 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 3:2; no variants, process sheet, split panels, mockup frame, or contact sheet.