docs: streamline GitHub Pages for showcase purpose

Remove Quick Start sections and code blocks from homepage.
Update Hero CTA to prioritize GitHub link over Quick Start.
Remove redundant "Read by goal" table from docs index.
Remove inline-styled GitHub CTA block.

Author: shijiashuai

_layouts/default.html

@@ -91,9 +91,9 @@ <h1 class="hero-title">
           </div>
         </div>
         <div class="hero-actions">
-          <a href="#quick-start" class="btn btn-primary btn-lg">
-            <span class="btn-icon">🚀</span>
-            Quick Start
+          <a href="{{ site.downloads.source.url }}" class="btn btn-primary btn-lg" target="_blank" rel="noopener">
+            <span class="btn-icon">📦</span>
+            View on GitHub
           </a>
           {% assign docs_home_url = site.nav[1].url %}
           {% if page.url == '/index.zh-CN' %}
@@ -103,10 +103,6 @@ <h1 class="hero-title">
             <span class="btn-icon">📖</span>
             Documentation
           </a>
-          <a href="{{ site.downloads.source.url }}" class="btn btn-ghost btn-lg" target="_blank" rel="noopener">
-            <span class="btn-icon">⭐</span>
-            Star on GitHub
-          </a>
         </div>
         <div class="hero-badges">
           <img src="https://github.com/LessUp/webrtc/actions/workflows/ci.yml/badge.svg" alt="CI" loading="lazy">
@@ -115,13 +111,6 @@ <h1 class="hero-title">
           <img src="https://img.shields.io/badge/License-MIT-00C853.svg" alt="License" loading="lazy">
         </div>
       </div>
-      <div class="hero-scroll">
-        <span class="scroll-indicator">
-          <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
-            <path d="M12 5v14M19 12l-7 7-7-7" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
-          </svg>
-        </span>
-      </div>
     </header>
     {% endif %}
 

docs/index.md

@@ -6,12 +6,6 @@ description: Documentation hub for LessUp WebRTC: architecture, signaling, deplo
 
 # Documentation
 
-<div class="github-cta" style="background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); border-radius: 12px; padding: 24px; margin-bottom: 32px; color: white; text-align: center;">
-  <h3 style="margin: 0 0 8px 0; color: white;">⭐ Like this project?</h3>
-  <p style="margin: 0 0 16px 0; opacity: 0.9;">Star us on GitHub to show your support!</p>
-  <a href="https://github.com/LessUp/webrtc" class="github-button" style="display: inline-block; background: white; color: #333; padding: 10px 24px; border-radius: 6px; text-decoration: none; font-weight: 600;">View on GitHub</a>
-</div>
-
 ## Why LessUp WebRTC?
 
 | Feature | Description |
@@ -61,17 +55,6 @@ Use this page as the public entrypoint for understanding the project.
   </a>
 </div>
 
-## Read by goal
-
-| Goal | Best page |
-|:-----|:----------|
-| Understand the code layout | [Technical Guide](guide) |
-| Integrate with the signaling server | [API Reference](api) |
-| Understand WebSocket message flow | [Signaling Protocol](signaling) |
-| Run or deploy the project | [Deployment Guide](deployment) |
-| Diagnose common setup issues | [Troubleshooting](troubleshooting) |
-| See the source-of-truth specs | [OpenSpec Hub](specs) |
-
 ## Public spec model
 
 The repository now treats `openspec/` as the only specification authority.

docs/index.zh-CN.md

@@ -7,12 +7,6 @@ lang: zh-CN
 
 # 文档首页
 
-<div class="github-cta" style="background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); border-radius: 12px; padding: 24px; margin-bottom: 32px; color: white; text-align: center;">
-  <h3 style="margin: 0 0 8px 0; color: white;">⭐ 喜欢这个项目？</h3>
-  <p style="margin: 0 0 16px 0; opacity: 0.9;">在 GitHub 上给我们一个 Star 表示支持！</p>
-  <a href="https://github.com/LessUp/webrtc" class="github-button" style="display: inline-block; background: white; color: #333; padding: 10px 24px; border-radius: 6px; text-decoration: none; font-weight: 600;">访问 GitHub</a>
-</div>
-
 ## 为什么选择 LessUp WebRTC？
 
 | 特性 | 描述 |
@@ -62,17 +56,6 @@ lang: zh-CN
   </a>
 </div>
 
-## 按目标阅读
-
-| 目标 | 对应页面 |
-|:-----|:---------|
-| 看懂代码结构 | [技术指南](guide.zh-CN) |
-| 对接信令接口 | [API 参考](api.zh-CN) |
-| 理解 WebSocket 消息流 | [信令协议](signaling.zh-CN) |
-| 运行或部署项目 | [部署指南](deployment.zh-CN) |
-| 排查常见问题 | [故障排查](troubleshooting.zh-CN) |
-| 查看唯一事实来源规范 | [OpenSpec 导航](specs.zh-CN) |
-
 ## 公开规范模型
 
 仓库现在只把 `openspec/` 视为唯一规范权威来源。

index.md

@@ -33,35 +33,6 @@ LessUp WebRTC is built for developers who want a practical reference implementat
   </div>
 </div>
 
-<a id="quick-start"></a>
-## Quick Start
-
-```bash
-git clone https://github.com/LessUp/webrtc.git
-cd webrtc
-go run ./cmd/server
-```
-
-Then open `http://localhost:8080` in two browser windows and join the same room.
-
-### Validation
-
-```bash
-make check
-cd web && npm test
-```
-
-## Runtime shape
-
-```text
-cmd/server/main.go          HTTP server, /ws, /healthz, /config.js
-internal/signal/            Hub, message handling, limits, tests
-web/src/core/app.js         browser app entrypoint
-web/src/controllers/        media, peers, signaling, stats, UI
-openspec/specs/             repository source of truth
-docs/                       public documentation and spec hub
-```
-
 ## Explore the project
 
 <div class="doc-cards">

index.zh-CN.md

@@ -34,35 +34,6 @@ LessUp WebRTC 更像是一份可读的参考实现，而不是堆满框架和基
   </div>
 </div>
 
-<a id="quick-start"></a>
-## 快速开始
-
-```bash
-git clone https://github.com/LessUp/webrtc.git
-cd webrtc
-go run ./cmd/server
-```
-
-然后在两个浏览器窗口打开 `http://localhost:8080`，加入同一个房间即可开始测试。
-
-### 校验命令
-
-```bash
-make check
-cd web && npm test
-```
-
-## 运行时结构
-
-```text
-cmd/server/main.go          HTTP 服务、/ws、/healthz、/config.js
-internal/signal/            Hub、消息处理、限制与测试
-web/src/core/app.js         浏览器入口
-web/src/controllers/        media / peers / signaling / stats / UI
-openspec/specs/             仓库唯一事实来源
-docs/                       公共文档与规范导航
-```
-
 ## 继续浏览
 
 <div class="doc-cards">