小红书竖版封面图·干货教程避坑类·大标题留白版（参数表 + 示例图）
小红书/公众号竖版首图模版。3:4/9:16 画幅，画面留出 30%-40% 顶部/底部干净留白区，供大字标题直接叠加不遮挡主体。适用于干货分享、教程步骤、避坑指南、工具推荐等。画面风格：高对比、焦点清晰、配色克制、主体明确。适用于 Flux.1-dev / SDXL / Midjourney v6。
图像类提示词仅供参照：生成效果因模型、参数与随机性而异，请自行微调。可填入即梦等生图站，也可填入豆包 / ChatGPT / Gemini 等具备生图能力的对话站（需在对方站内选用图像功能）。一键填入按产品计次规则执行，与是否满意出图无关。
示例图
提示词
你是小红书/自媒体封面图设计专家。按以下结构输出：
| 维度 | 说明 | 推荐参数/关键词 |
|---|---|---|
| 平台/画幅 | 小红书/公众号首图 | aspect ratio 3:4 (1024x1365) 或 9:16 (1080x1920) |
| 留白区域 | 顶部/底部 30-40% 干净区域 | negative space top/bottom 30-40%, clean area for text overlay |
| 主体位置 | 中下部/中上部，不与标题重叠 | subject centered lower/upper third, rule of thirds |
| 视觉焦点 | 单一明确主体/场景 | single clear subject, high contrast |
| 色彩策略 | 高饱和度主色调+中性留白 | saturated accent color + neutral whitespace |
| 光影风格 | 自然光/窗边光/环形光 | natural window light, ring light, soft directional |
| 景别 | 半身/特写/桌面平铺 | half-body, close-up, flat-lay |
| 风格基调 | 干净利落/专业感/可信度 | clean, professional, trustworthy, not overly staged |
| 字体预留 | 无文字干扰区域 | no text interference in title zone |
常用负面词：
text, watermark, signature, logo, title, subtitle, caption, cluttered, busy background, messy, low contrast, blurry, distorted, bad anatomy, ugly, deformed, amateur, oversaturated, harsh flash, noise
示例提示词（干货教程封面）：
Clean minimal flat-lay desk setup for productivity tutorial cover, top 40% clean white negative space for title overlay, MacBook Pro centered lower third with Notion app open showing checklist, iPhone 15 Pro beside showing timer app, white ceramic mug with black coffee, minimal white wireless keyboard, soft natural window light from left creating subtle shadows, high contrast clean aesthetic, kodak portra 400, vertical 3:4, 8k masterpiece, professional educational cover style
示例提示词（避坑指南封面）：
Split composition avoid-mistakes cover, top third clean neutral gray space for bold red title, bottom two-thirds shows two side-by-side phone screens: left screen red X with messy cluttered notes app, right screen green checkmark with organized color-coded Notion database, subtle arrow pointing from left to right, soft studio lighting, high contrast educational vibe, vertical 3:4, 8k, professional tutorial cover style
少样本示例
输入
生成一个护肤教程封面：顶部留白、桌面平铺产品、自然光
输出
提示词：Clean flat-lay skincare routine tutorial cover, top 35% clean cream negative space for title, minimal vanity setup with 4 serum bottles arranged in gradient color order (clear to amber), jade roller and gua sha tools neatly placed, cotton pads folded, soft morning window light from top-left, fresh clean aesthetic, kodak portra 400, vertical 3:4, 8k masterpiece, educational cover style
参数：steps=30, width=1024, height=1365, guidance=7, seed=-1
负面词：text, watermark, cluttered, busy, low contrast, blurry, messy background, harsh flash
输入
生成一个效率工具避坑封面：分屏对比、红绿标记、留白标题区
输出
提示词：Split screen productivity tool comparison cover, top 30% clean white space for bold title, bottom split: left side red X overlay on cluttered chaotic desktop with 50+ browser tabs, right side green checkmark on organized Notion workspace with PARA system, subtle animated arrow from left to right, cool professional color palette (red/teal/gray), soft studio lighting, vertical 3:4, 8k masterpiece, avoid-mistakes educational cover
参数：steps=30, width=1024, height=1365, guidance=7, seed=-1
负面词：text, watermark, cluttered, busy, low contrast, blurry, messy, harsh flash, oversaturated