diff --git a/frontend/src/components/SignalDashboard.vue b/frontend/src/components/SignalDashboard.vue
index fefd5d4..ca9f79b 100644
--- a/frontend/src/components/SignalDashboard.vue
+++ b/frontend/src/components/SignalDashboard.vue
@@ -134,18 +134,16 @@
                   'new-signal-flash': isNewSignal(signal.latestSignal)
                 }"
               >
-                <template #header>
-                  <div style="display: flex; justify-content: space-between; align-items: center;">
-                    <div style="display: flex; align-items: center; gap: 6px;">
-                      <n-tag :type="getPriorityType(signal.latestSignal?.priority || 'medium')" size="small" round>
-                        {{ getPriorityLabel(signal.latestSignal?.priority || 'medium') }}
-                      </n-tag>
-                      <n-tag :type="getImpactColor(signal.impact_score)" size="small" round>{{ signal.source }}</n-tag>
-                      <n-tag v-if="signal.count > 1" type="info" size="tiny" round>{{ signal.count }}条</n-tag>
-                    </div>
-                    <n-text depth="3" style="font-size: 12px;">{{ formatDate(signal.created_at) }}</n-text>
+                <div class="signal-item-header" style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px;">
+                  <div style="display: flex; align-items: center; gap: 6px;">
+                    <n-tag :type="getPriorityType(signal.latestSignal?.priority || 'medium')" size="small" round>
+                      {{ getPriorityLabel(signal.latestSignal?.priority || 'medium') }}
+                    </n-tag>
+                    <n-tag :type="getImpactColor(signal.impact_score)" size="small" round>{{ signal.source }}</n-tag>
+                    <n-tag v-if="signal.count > 1" type="info" size="tiny" round>{{ signal.count }}条</n-tag>
                   </div>
-                </template>
+                  <n-text depth="3" style="font-size: 12px;">{{ formatDate(signal.created_at) }}</n-text>
+                </div>
                 <n-text class="signal-content" :depth="1">{{ signal.content }}</n-text>
               </n-list-item>
             </n-list>