[CMS-VISUAL] D1-D10 后端: 新组件数据槽（banner 扩 topic/event 位 5 列 + cms_person 新表+CRUD+防跨站）+ 6 区块类型校验与装配（空数据整块不渲染 R-44）+ 骨架新组件 fragment/内置 22 图标集/共享动效 JS（reveal+count-up R-42）+ searchStyle 搜索浮层（D-10，含坑④条件包裹修复）+ 三保留主题 4 新参数

src/main/resources/templates/themes/campus-glow/fragments/header.html

@@ -31,10 +31,19 @@
                  th:src="${url.upload(site.config['logo'])}" th:alt="${site.name}">
             <a class="cg-site-name" th:href="${url.home()}" th:text="${site.name}">站点名称</a>
         </div>
-        <form class="cg-site-search" th:action="${url.search('', null)}" method="get" role="search">
+        <!-- D-10（docs/20）：searchStyle=overlay 换全屏搜索浮层；none 隐藏；inline/缺省保留原表单。
+     坑④：th:replace 优先级(100)先于 th:if(300)——条件必须放外层 th:block，replace 放子元素 -->
+        <th:block th:if="${themeParams != null and themeParams['searchStyle'] == 'overlay'}">
+            <th:block th:replace="~{'themes/common/fragments/search' :: overlay(${url})}" />
+        </th:block>
+        <th:block th:if="${themeParams == null or themeParams['searchStyle'] == null or themeParams['searchStyle'] == 'inline'}">
+<form class="cg-site-search"
+             
+              th:action="${url.search('', null)}" method="get" role="search">
             <input type="text" name="q" placeholder="站内搜索" aria-label="站内搜索">
             <button type="submit">搜索</button>
         </form>
+        </th:block>
     </div>
 
     <nav class="cg-nav" aria-label="栏目导航">