diff --git a/src/App.vue b/src/App.vue
index e633e69..43d8e6f 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,5 +1,17 @@
 <template>
   <div class="audio-detection-container">
+    <!-- 加载动画 -->
+    <div v-if="isLoading" class="loading-overlay">
+      <div class="loading-spinner"></div>
+      <span class="loading-text">加载中...</span>
+    </div>
+
+    <!-- 切换加载 -->
+    <div v-if="isSwitching" class="switch-loading-overlay">
+      <div class="loading-spinner"></div>
+      <span class="loading-text">数据加载中...</span>
+    </div>
+
     <!-- 顶部 Header -->
     <div class="header-bar">
       <div class="header-left">
@@ -196,6 +208,12 @@ const splChartContainer = ref<HTMLElement | null>(null)
 let waveform: WaveSurfer | null = null
 let splChart: echarts.ECharts | null = null
 
+// 页面加载状态
+const isLoading = ref(true)
+
+// 切换条码加载状态
+const isSwitching = ref(false)
+
 // 定时器
 let updateTimer: number | null = null
 let splUpdateTimer: number | null = null
@@ -212,15 +230,23 @@ const resourceStatus = ref([
 const stats = ref({
   duration: '00:00:00',
   dba: 0,
-  batchTotal: 100,
+  batchTotal: 82,
   failCount: 3
 })
 
 // 检测结果状态：'pass' | 'fail'
 const resultStatus = ref<'pass' | 'fail'>('pass')
 
-// 条码号
-const barcode = ref('2026042400001')
+// 条码号 - 使用当前日期
+function generateBarcode(): string {
+  const now = new Date()
+  const year = now.getFullYear()
+  const month = String(now.getMonth() + 1).padStart(2, '0')
+  const day = String(now.getDate()).padStart(2, '0')
+  return `${year}${month}${day}02102`
+}
+
+const barcode = ref(generateBarcode())
 
 // 当前条码是否已锁定（已点击合格或不合格）
 const isLocked = ref(false)
@@ -544,19 +570,27 @@ const handleFail = () => {
 
 // 导航按钮处理
 const handlePrevious = () => {
+  if (isSwitching.value) return
   isLocked.value = false
+  isSwitching.value = true
   const num = parseInt(barcode.value) - 1
   barcode.value = num.toString().padStart(barcode.value.length, '0')
-  if (isPaused.value) isPaused.value = false
   resultStatus.value = 'pass'
+  setTimeout(() => {
+    isSwitching.value = false
+  }, 1000)
 }
 
 const handleNext = () => {
+  if (isSwitching.value) return
   isLocked.value = false
+  isSwitching.value = true
   const num = parseInt(barcode.value) + 1
   barcode.value = num.toString().padStart(barcode.value.length, '0')
-  if (isPaused.value) isPaused.value = false
   resultStatus.value = 'pass'
+  setTimeout(() => {
+    isSwitching.value = false
+  }, 1000)
 }
 
 const togglePause = () => {
@@ -568,6 +602,7 @@ onMounted(() => {
   setTimeout(() => {
     initWaveform()
     initSPLChart()
+    isLoading.value = false
   }, 100)
 
   // 每 100ms 更新一次统计数据（时长、dBA、不合格数）
@@ -615,6 +650,53 @@ const handleResize = () => {
   background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #dbeafe 100%);
   padding: 20px;
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+  position: relative;
+}
+
+/* 加载动画 */
+.loading-overlay {
+  position: fixed;
+  inset: 0;
+  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #dbeafe 100%);
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 20px;
+  z-index: 9999;
+}
+
+.loading-spinner {
+  width: 48px;
+  height: 48px;
+  border: 4px solid #e0e7ff;
+  border-top-color: #3b82f6;
+  border-radius: 50%;
+  animation: spin 0.8s linear infinite;
+}
+
+@keyframes spin {
+  to { transform: rotate(360deg); }
+}
+
+.loading-text {
+  font-size: 16px;
+  color: #6b7280;
+  font-weight: 500;
+}
+
+/* 切换加载蒙版 */
+.switch-loading-overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(240, 249, 255, 0.85);
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 20px;
+  z-index: 9998;
+  backdrop-filter: blur(2px);
 }
 
 /* 顶部 Header */