style: 回忆复习页移除重复标题并统一重新生成按钮颜色

src/components/ReviewRecall.vue

@@ -403,9 +403,9 @@ onMounted(() => {
 
 <template>
   <section class="recall-page" v-loading="loading">
-    <!-- 顶部操作栏 -->
+    <!-- 顶部操作栏（页面标题由 MyHead 提供，这里只保留操作） -->
     <div class="page-header">
-      <h2>回忆复习</h2>
+      <span class="header-spacer"></span>
       <el-button :loading="historyLoading" @click="loadHistory">
         {{ showHistory ? "收起历史" : "历史记录" }}
       </el-button>
@@ -519,7 +519,6 @@ onMounted(() => {
           </el-button>
           <el-button
             v-if="standardExpanded"
-            type="warning"
             :loading="regenerating"
             @click="handleRegenerate"
           >
@@ -631,11 +630,8 @@ onMounted(() => {
   gap: 12px;
 }
 
-.page-header h2 {
-  margin: 0;
+.header-spacer {
   flex: 1;
-  color: var(--green-900);
-  font-size: 18px;
 }
 
 .focus-confirm-text {