diff --git a/webui/src/components/Log.vue b/webui/src/components/Log.vue
index cbe3878..5ca40d2 100644
--- a/webui/src/components/Log.vue
+++ b/webui/src/components/Log.vue
@@ -39,7 +39,7 @@ interface LogEntry {
 
 const logs = ref<LogEntry[]>([])
 const logContainer = ref<HTMLElement | null>(null)
-const expanded = ref(true)
+const expanded = ref(false)  // 默认折叠
 const lastTripRates = ref<number[]>([])
 
 const addLog = (level: LogEntry['level'], message: string) => {