修复首页热门文档标题内联style导致的构建报错

docs/intro.md

@@ -27,7 +27,7 @@ GitLink（确实开源）是CCF官方指定的开源创新服务平台，旨在
 </div>
 
 <div class="home-popular">
-  <h2 style="font-size: 1.1rem; font-weight: 600; margin-bottom: 0.75rem;">热门文档</h2>
+  <h2 class="home-popular-title">热门文档</h2>
   <div class="home-popular-grid">
     <a class="home-popular-card" href="/快速开始/注册GitLink账号">
       <span class="home-popular-icon">📝</span>

src/css/custom.css

@@ -188,6 +188,12 @@ html[data-theme='dark'] .home-hero-text kbd {
   margin: 1.5rem 0 1rem;
 }
 
+.home-popular-title {
+  font-size: 1.1rem;
+  font-weight: 600;
+  margin-bottom: 0.75rem;
+}
+
 .home-popular-grid {
   display: grid;
   grid-template-columns: repeat(3, 1fr);