# Frame Liquid Bg Hero

> WebGL-style fluid displacement background with a quote overlay, suited to video intros, landing heroes, or posters.

- **Type:** Skill
- **Install:** `agentstack add skill-nexu-io-open-design-frame-liquid-bg-hero`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [nexu-io](https://agentstack.voostack.com/s/nexu-io)
- **Installs:** 0
- **Category:** [Content & Media](https://agentstack.voostack.com/c/content-and-media)
- **Latest version:** 0.1.0
- **License:** Apache-2.0
- **Upstream author:** [nexu-io](https://github.com/nexu-io)
- **Source:** https://github.com/nexu-io/open-design/tree/main/skills/frame-liquid-bg-hero
- **Website:** https://open-design.ai

## Install

```sh
agentstack add skill-nexu-io-open-design-frame-liquid-bg-hero
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

【模板: 流体背景 Hero】
【意图】可作为视频片头帧、SaaS landing 顶部 hero、海报底图。WebGL 流体感, 但用 CSS / canvas 退化绘制, 确保单文件可双击打开。Inspired by hyperframes vfx-liquid-background。

【画布】1920×1080 (横) 或 1080×1920 (竖), 二选一。背景占满。

【流体背景 — 3 种实现, 按用户偏好选】
1. **CSS 多层 radial-gradient 错位呼吸** (最稳, 默认推荐):
   - 3-5 个大椭圆 `radial-gradient(...)`, 颜色取自调色板。
   - 每个椭圆套 `@keyframes` 平移 + scale + hue-rotate, 周期 8-14s, 错峰; 整个画面叠 `mix-blend-mode: screen` 或 `overlay`。
   - 顶层加 1 层 `backdrop-filter: blur(80px)` 让边缘更糊。
2. **Canvas + simple perlin noise** (中阶):
   - 80 行 inline JS, 用 `requestAnimationFrame` 画 metaballs 或 simplex noise field。
   - 性能允许时启用, `prefers-reduced-motion` 时降回静态截图。
3. **WebGL fragment shader** (高阶, 慎用):
   - 用 jsdelivr CDN 引 `regl` 或 inline plain WebGL。
   - shader 写 domain-warp noise; 单个 quad, 一个 uniform `u_time`。

【顶层文字层】
- 居中或左下: 一句巨型金句 (5-7vw, 衬线或粗 sans), 字体: `Source Serif Pro` / `Inter Tight` / `Manrope Black`。
- 文字色用 paper white `#fafaf8` 或 ink, 取决于背景明暗; 加 `mix-blend-mode: difference` 让它在任何流体颜色上都可读。
- 副标 (小 sans, opacity 0.7) 一行。
- 底部可选 CTA chip 或 hairline + 元数据 row。

【调色 — 4 选 1, 不要彩虹】
- 🌅 **Solar Peach** — `#ffb18a` + `#f78b4c` + `#d97757`, 暖橙桃。
- 🌊 **Ocean Aqua** — `#5ac8fa` + `#0a84ff` + `#1e3a8a`, 海蓝。
- 🌌 **Aurora Violet** — `#a78bfa` + `#7c5cff` + `#1e1b4b`, 极光紫。
- 🌿 **Forest Mint** — `#86efac` + `#34d399` + `#065f46`, 苔森林。

【设计细节】
- 严禁: 多色彩虹 (>4 个色相)、PowerPoint 渐变、霓虹荧光叠加。
- 字体: 中文用 `Noto Serif SC` (display) / `Noto Sans SC` (副标)。
- 严禁外链图片; 全部 CSS + SVG + 可选 canvas。
- 必须用用户提供的金句 / 标题; 如果用户输入是数据 → 提炼一句 ≤ 18 字的金句。
- 单文件 HTML, 可被 `prefers-reduced-motion` 关动效。

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [nexu-io](https://github.com/nexu-io)
- **Source:** [nexu-io/open-design](https://github.com/nexu-io/open-design)
- **License:** Apache-2.0
- **Homepage:** https://open-design.ai

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-nexu-io-open-design-frame-liquid-bg-hero
- Seller: https://agentstack.voostack.com/s/nexu-io
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.