docs: clarify website product highlights

Reframe the feature section around the broader desktop product rather than only Agent Runtimes. Clarify official x64 and arm64 coverage, the separate LoongArch preview, and that compatibility claims are not vendor certification.

sites/en.html

@@ -72,7 +72,7 @@
 
         <nav class="site-navigation" id="site-navigation" aria-label="Main navigation" data-navigation>
           <a href="#download">Download</a>
-          <a href="#features">Agent Runtime</a>
+          <a href="#features">Highlights</a>
           <a href="#assistant">Desktop assistant</a>
         </nav>
 
@@ -289,7 +289,7 @@
         <div class="section-inner">
           <div class="section-heading">
             <div>
-              <p class="kicker">Agent Runtime</p>
+              <p class="kicker">Product highlights</p>
               <h2 id="features-title">Agent Runtimes in one desktop interface</h2>
             </div>
             <p>
@@ -321,8 +321,8 @@
                 </svg>
               </div>
               <span class="feature-number">02</span>
-              <h3>Built for desktop platforms</h3>
+              <h3>Broad desktop architecture coverage</h3>
-              <p>Windows, macOS, and Linux releases are available for both x64 and arm64.</p>
+              <p>Official Windows, macOS, and Linux releases cover x64 and arm64, with a separate experimental LoongArch preview.</p>
             </article>
 
             <article class="feature-card">

sites/index.html

@@ -72,7 +72,7 @@
 
         <nav class="site-navigation" id="site-navigation" aria-label="主导航" data-navigation>
           <a href="#download">下载</a>
-          <a href="#features">Agent Runtime</a>
+          <a href="#features">产品亮点</a>
           <a href="#assistant">桌面助手</a>
         </nav>
 
@@ -352,7 +352,8 @@
               <h3 id="domestic-support-title">桌面版本覆盖国产 x64、ARM64 和龙芯 LoongArch</h3>
               <p>
                 正式下载覆盖国产 x64 与 ARM64；龙芯 LoongArch 使用独立编译的
-                loong64 预览版。
+                loong64 预览版。这里描述的是系统、指令集与安装包兼容性，
+                不代表已完成所有厂商和整机认证。
               </p>
             </div>
             <div class="domestic-support__items">
@@ -375,11 +376,11 @@
         <div class="section-inner">
           <div class="section-heading">
             <div>
-              <p class="kicker">Agent Runtime</p>
+              <p class="kicker">产品亮点</p>
-              <h2 id="features-title">在一个界面中选择和配置 Runtime</h2>
+              <h2 id="features-title">本地工作空间，统一 Runtime，也支持信创环境</h2>
             </div>
             <p>
-              Runtime、模型连接、Skills、MCP 和工作模式均可在桌面界面中配置。
+              从模型连接到执行记录，从桌面工作到国产软硬件适配，都由同一个应用承载。
             </p>
           </div>
 
@@ -407,8 +408,8 @@
                 </svg>
               </div>
               <span class="feature-number">02</span>
-              <h3>覆盖主流桌面系统</h3>
+              <h3>覆盖主流桌面与信创环境</h3>
-              <p>Windows、macOS、Linux 同步提供 x64 与 arm64 架构版本。</p>
+              <p>Windows、macOS、Linux 正式提供 x64 与 arm64 版本，龙芯 LoongArch 另有独立实验预览。</p>
             </article>
 
             <article class="feature-card">

sites/scripts/validate.mjs

@@ -250,6 +250,8 @@ for (const breakpoint of ["1199px", "959px", "719px"]) {
 const requiredCopy = [
   "免注册",
   "支持信创软硬件的",
+  "产品亮点",
+  "本地工作空间，统一 Runtime，也支持信创环境",
   "桌面版本覆盖国产 x64、ARM64 和龙芯 LoongArch",
   "龙芯 LoongArch 独立编译预览版",
   "龙芯 LoongArch（实验预览）",
@@ -275,9 +277,11 @@ for (const copy of requiredCopy) {
 
 const requiredEnglishCopy = [
   "No account required.",
+  "Product highlights",
   "Model chat and coding agents",
   "on your desktop.",
   "Windows, macOS, and Linux",
+  "separate experimental LoongArch preview",
   "Agent Runtimes in one desktop interface",
   "Direct models",
   "OpenCode",