docs: add Ultralight Core feature card, simplify Quick Start

Move lightweight emphasis from Quick Start into a dedicated feature
card. Merge Zero Allocation into the 10x+ Performance card.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: JasonXuDeveloper - 傑 <jason@xgamedev.net>

Author: JasonXuDeveloper

README.md

@@ -22,32 +22,32 @@ Powered by HybridCLR with built-in encryption and obfuscation.<br>
 <tr>
 <td width="33%" valign="top">
 
-### 10x+ Performance
+### Ultralight Core
 
-HybridCLR runs standard C# natively — 10x+ faster than ILRuntime or Lua. No adapters, no cross-domain overhead, no second language to learn.
+A handful of files — that's the entire core package. Drop it in and hot updates just work. No boilerplate code required.
 
 </td>
 <td width="33%" valign="top">
 
-### Built-in Security
+### 10x+ Performance
 
-Encrypt assets and DLLs with XOR, AES, or ChaCha20. Obfuscate hot update code with Obfuz. No other hot update framework ships this.
+HybridCLR runs standard C# natively — 10x+ faster than ILRuntime or Lua. UniTask for GC-free async, Nino for zero-allocation serialization.
 
 </td>
 <td width="33%" valign="top">
 
-### One-Click Build
+### Built-in Security
 
-Compile code, generate AOT metadata, obfuscate, encrypt, and package resources — all from one button in the JEngine Panel.
+Encrypt assets and DLLs with XOR, AES, or ChaCha20. Obfuscate hot update code with Obfuz. No other hot update framework ships this.
 
 </td>
 </tr>
 <tr>
 <td width="33%" valign="top">
 
-### Zero Allocation
+### One-Click Build
 
-UniTask for GC-free async/await. Nino for high-performance source-generated serialization — built by JEngine's author.
+Compile code, generate AOT metadata, obfuscate, encrypt, and package resources — all from one button in the JEngine Panel.
 
 </td>
 <td width="33%" valign="top">
@@ -82,9 +82,7 @@ First hot update framework with a [Claude Code plugin](.claude-plugin/). AI that
 
 ## Quick Start
 
-**Unity 2022.3+** required. The core package is just a handful of files — no boilerplate code needed to get hot updates running.
-
-Follow the [Getting Started Guide](https://jengine.xgamedev.net/) to be up and running in minutes.
+**Unity 2022.3+** required. Follow the [Getting Started Guide](https://jengine.xgamedev.net/) to be up and running in minutes.
 
 &nbsp;
 

README_zh_cn.md

@@ -22,32 +22,32 @@
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 <td width="33%" valign="top">
 
-### 10倍+性能
+### 极致轻量
 
-HybridCLR 原生运行标准 C#——性能是 ILRuntime 和 Lua 的 10 倍以上。无适配器、无跨域开销、无需学第二语言。
+核心包仅数个文件——导入即用，无需编写任何模板代码即可实现热更新。
 
 </td>
 <td width="33%" valign="top">
 
-### 内置安全
+### 10倍+性能
 
-XOR、AES、ChaCha20 三种算法加密资源和 DLL。Obfuz 混淆热更代码。同类框架中独此一家。
+HybridCLR 原生运行标准 C#——性能是 ILRuntime 和 Lua 的 10 倍以上。UniTask 无 GC 异步，Nino 零分配序列化。
 
 </td>
 <td width="33%" valign="top">
 
-### 一键构建
+### 内置安全
 
-编译代码、生成 AOT 元数据、混淆、加密、打包资源——JEngine 面板一键搞定。
+XOR、AES、ChaCha20 三种算法加密资源和 DLL。Obfuz 混淆热更代码。同类框架中独此一家。
 
 </td>
 </tr>
 <tr>
 <td width="33%" valign="top">
 
-### 零GC分配
+### 一键构建
 
-UniTask 实现无 GC 异步。Nino 源码生成高性能序列化——由 JEngine 作者开发。
+编译代码、生成 AOT 元数据、混淆、加密、打包资源——JEngine 面板一键搞定。
 
 </td>
 <td width="33%" valign="top">
@@ -82,9 +82,7 @@ iOS、Android、Windows、macOS、WebGL——以及微信、抖音、支付宝
 
 ## 快速开始
 
-需要 **Unity 2022.3+**。核心包仅数个文件——无需编写任何模板代码即可实现热更新。
-
-参阅[快速上手指南](https://jengine.xgamedev.net/zh/)，几分钟即可跑通。
+需要 **Unity 2022.3+**。参阅[快速上手指南](https://jengine.xgamedev.net/zh/)，几分钟即可跑通。
 
 &nbsp;