# Official Avatar Guardrail

Apply this global layer before the Soft 3D style module. The English prompt is the canonical copy; the Chinese prompt is its product-facing translation.

## English

```text
OFFICIAL GUARDRAIL: Create one subject for an AI assistant avatar. Deliver one 1254×1254 px square PNG master for both mobile and web; product surfaces may downscale it proportionally but must not upscale it. Use a centered, front-facing bust composition. Keep the complete hairstyle, ears, glasses and identity-critical details safely inside an automatic circular crop. Target an 11% top gap above the hairstyle or ears—about 139 px in the 1254 px master; accept 10–12%, approximately 125–150 px, equivalent to about 8 px in a 72×72 px circular avatar. The overall presence should feel calm, airy, modern, trustworthy and friendly. Use pure white by default; change the background only when the user explicitly specifies one, and keep it simple. Blue may appear as a restrained environmental or wardrobe accent, but never as a cast over skin, fur, hair or clothing. No text, logo, watermark, complex scene, extra character or unrelated prop. If the user does not specify a visual style, apply the Soft 3D style module by default.
```

## 中文

```text
官方护栏：创建一个用于 AI 助理头像的单一主体。交付一张同时用于移动端和网页端的 1254×1254px PNG 正方形高清母版；产品界面只能等比例缩小，不得放大。使用正面居中的半身构图，并确保完整发型、耳朵、眼镜和其他身份关键细节安全位于自动圆形裁剪范围内。人物头顶或耳尖到画布顶部的距离目标为画布高度的 11%，即 1254px 母版中的约 139px；可接受范围为 10–12%，即约 125–150px，对应 72×72px 圆形头像中的约 8px 留白。整体气质应安静、轻盈、现代、可信赖且友好。默认使用纯白色背景；只有用户明确指定背景时才更改，并保持背景简洁。蓝色只能作为克制的环境或服装点缀，不得让皮肤、毛发、头发或服装整体偏蓝。画面中不得出现文字、Logo、水印、复杂场景、额外人物或无关道具。若用户未指定视觉风格，默认叠加 Soft 3D 风格模块。
```
