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30 changes: 30 additions & 0 deletions tutorial-demo/README.md
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# Git 教程演示项目

这个目录配合三集中文视频教程使用：

1. 使用 Commit 保存和恢复代码版本。
2. 使用不同 Branch 隔离不同功能。
3. 使用 Pull Request 把稳定代码合并到 `main`。

## 运行

直接用浏览器打开 `index.html`。

也可以在目录中启动一个本地服务器：

```powershell
python -m http.server 8000
```

然后访问 `http://localhost:8000`。

## 安全工作流

```text
修改前看状态
修改后看 Diff
验证通过再 Commit
功能分支先走 PR
稳定代码才进 main
```

34 changes: 34 additions & 0 deletions tutorial-demo/index.html
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<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>AI 项目控制台</title>
<link rel="stylesheet" href="styles.css" />
</head>
<body>
<main class="dashboard">
<p class="eyebrow">LEARN GIT</p>
<h1>AI 项目控制台</h1>
<p class="summary">先保存可用版本，再让 AI 继续修改。</p>

<section class="status-card">
<span class="status-dot" aria-hidden="true"></span>
<div>
<strong>当前状态：稳定</strong>
<p>基础页面已经通过人工检查。</p>
</div>
</section>

<section class="rules">
<h2>三个固定动作</h2>
<ol>
<li>修改前查看状态</li>
<li>修改后检查 Diff</li>
<li>验证通过再 Commit</li>
</ol>
</section>
</main>
</body>
</html>

80 changes: 80 additions & 0 deletions tutorial-demo/styles.css
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:root {
color-scheme: light;
font-family:
Inter, "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont,
"Segoe UI", sans-serif;
background: #f6f2e9;
color: #171717;
}

* {
box-sizing: border-box;
}

body {
min-height: 100vh;
margin: 0;
display: grid;
place-items: center;
padding: 24px;
}

.dashboard {
width: min(680px, 100%);
padding: 48px;
border: 2px solid #171717;
border-radius: 28px;
background: #fffdf8;
box-shadow: 12px 12px 0 #ff5a5f;
}

.eyebrow {
margin: 0 0 12px;
color: #d83a40;
font-weight: 800;
letter-spacing: 0.16em;
}

h1 {
margin: 0;
font-size: clamp(36px, 8vw, 72px);
line-height: 1;
}

.summary {
margin: 20px 0 32px;
font-size: 20px;
line-height: 1.7;
}

.status-card {
display: flex;
gap: 14px;
align-items: flex-start;
padding: 20px;
border-radius: 18px;
background: #e7f6ee;
}

.status-card p {
margin: 6px 0 0;
}

.status-dot {
width: 14px;
height: 14px;
margin-top: 5px;
border-radius: 50%;
background: #198754;
box-shadow: 0 0 0 6px rgb(25 135 84 / 14%);
}

.rules {
margin-top: 32px;
}

.rules li {
margin: 10px 0;
padding-left: 6px;
}