## 一、背景图（6）

| key | 场次 | 画面（正文依据） | 英文提示词 |
|---|---|---|---|
| bg_corner_night | S1 | 老城区街角，关了卷帘门的药店，路灯下飞着小虫 | night quiet old-town street corner, a shuttered pharmacy with closed metal roll-down door, one warm sodium street lamp with tiny moths circling, wet empty asphalt, distant bokeh city lights, cinematic photorealistic, muted teal-and-amber night palette, vertical composition, no people, no text |
| bg_station_front | S2 | 派出所门口台阶，白炽灯很亮，一圈光，光外是暗 | entrance steps of a small Chinese police station at night, a bright cold-white floodlight pooling on the pavement, darkness just beyond the light circle, glass door with a duty officer's silhouette faintly inside, wet ground reflections, cinematic photorealistic, high contrast light-and-shadow, vertical composition, no readable text, no faces |
| bg_old_street | S3 | 半拆老街，一半钉木板的店面，一半还亮着杂货铺的灯 | half-demolished old Chinese street at night, boarded-up shopfronts with plywood on one side, a single small sundry/grocery shop still warmly lit on the other, tangled wires overhead, empty narrow lane, nostalgic decay, cinematic photorealistic, warm shop glow against cool night, vertical composition, no people, no legible signage |
| bg_behind_fence | S4 | 围挡缺口，手电光柱，废墟中间一棵歪脖子枣树、一截矮墙 | through a gap in a construction hoarding at night: a rubble lot with one twisted old jujube tree, a low broken brick wall beneath it, a flashlight beam sweeping across dust and debris, moonlit, desolate but tender, cinematic photorealistic, deep blues with a warm torch highlight, vertical composition, no people, no text |
| bg_tree_wait | S5 | 树下，三个人位（空镜留白），月光，远处洒水车将到 | the same twisted jujube tree and low wall in moonlight, ruins settling into pre-dawn stillness, soft silver-blue light, distant hint of a street-sprinkler's headlights far off, quiet waiting mood, cinematic photorealistic, serene night-to-dawn transition, vertical composition, empty scene, no people, no text |
| bg_van_dawn | S6 | 敬老院面包车停在街口，护工跑来，天边泛青 | a white elderly-care minivan stopped at the mouth of the street just before dawn, sky turning pale blue-grey at the horizon, a caregiver rushing with a folded coat (small, back view, no face), first light on wet pavement, tender melancholic, cinematic photorealistic, cool dawn tones with a warm vehicle light, vertical composition, no text |

生成命令（逐张，脚本首张会冷启动 WebUI 1–3 分钟）：
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## 二、立绘（2，头像）

| char_id | 名 | 设定 | 提示词要点 |
|---|---|---|---|
| c1 | 程勉 | 男，下夜班上班族，二十八九，看表、脚步诚实、话少 | young Chinese man ~28, office worker off a night shift, collared shirt slightly rumpled, tired but kind eyes, holding a phone, soft night street light, half-body portrait, photorealistic, vertical 9:16, no text |
| c2 | 阮眠 | 女，加班出来透气，随和、会蹲下与人平视 | young Chinese woman ~27, out on a break from late overtime, cardigan, calm warm expression, standing casually on a night street, soft lamplight, half-body portrait, photorealistic, vertical 9:16, no text |

（立绘与夜航一致：竖构图单人，脸清晰；SD1.5 人像 CFG 5–6、必要时 --hr 防脸崩。）

## 三、BGM（6，素材库/环境声为主，非旋律曲）

| key | 氛围 | 素材方向 | 若走音乐生成（提示词） |
|---|---|---|---|
| bgm_street_night | 远处主干道车流、卷帘门被风掀动的哐当 | 城市夜环境床 | minimal ambient, distant city traffic hum, occasional metal shutter rattle in wind, sparse, nighttime, no melody |
| bgm_station_front | 值班室电视漏声、远处环卫洒水车驶过 | 冷白空间床 | quiet ambient, faint muffled TV from a room, a distant street-sprinkler horn passing, cold stillness |
| bgm_half_street | 木板被风拍、野猫、冰柜嗡嗡 | 废墟街床 | derelict street ambience, plywood tapping in wind, a distant cat, low hum of a shop fridge, sparse |
| bgm_tree_found | 风穿过断墙的哨音、手电咔哒、踏灰 | 紧张转柔 | wind whistling through a broken wall, soft footsteps on rubble, gentle emotional pad entering, cinematic, restrained |
| bgm_dawn_q | 洒水车音乐很远、枣叶沙沙、夜鸟一声 | 将旦静 | pre-dawn calm, a very distant sprinkler melody, leaves rustling, a single night bird, tender minimal |
| bgm_van_dawn | 车门滑轨、脚步、头班公交气刹 | 收束 | dawn resolution, van sliding door, footsteps, a first bus air-brake sigh far away, warm resolving ambient, understated |

> 落点不结算＝BGM 音量随剧情收、不加煽情弦乐；主题曲本剧不需要（温情现实）。

## 四、SFX（从 BGM 剥离、客户端叠加）

手电咔哒、电话拨号/免提、纸巾包枣核、车门滑轨、包子下屉、头班公交进站气刹——单音效文件，不进 BGM 循环。