diff --git a/client/src/components/AmountEditor/amount-edit.ts b/client/src/components/AmountEditor/amount-edit.ts
index 6e085d9..24ffda7 100644
--- a/client/src/components/AmountEditor/amount-edit.ts
+++ b/client/src/components/AmountEditor/amount-edit.ts
@@ -48,9 +48,19 @@ export function insertAmountKey(
   }
 
   const normalizedInsert = normalizeInsert(value, safeCursor, key)
-  const next = value.slice(0, safeCursor) + normalizedInsert + value.slice(safeCursor)
+  let next = value.slice(0, safeCursor) + normalizedInsert + value.slice(safeCursor)
 
   if (!isValidAmountInput(next, options)) {
+    // 小数位超出上限时，从右侧挤出一个字符（小数部分左移）
+    const dotIdx = next.indexOf('.')
+    if (dotIdx >= 0 && next.length - dotIdx - 1 > MAX_DECIMAL_PLACES) {
+      next = next.slice(0, -1)
+      const newCursor = Math.min(safeCursor + normalizedInsert.length, next.length)
+      if (!isValidAmountInput(next, options)) {
+        return { value, cursorIndex: safeCursor, accepted: false }
+      }
+      return { value: next, cursorIndex: newCursor, accepted: true }
+    }
     return { value, cursorIndex: safeCursor, accepted: false }
   }
 
diff --git a/client/src/pages/add/index.vue b/client/src/pages/add/index.vue
index 7c64974..2b5dd0f 100644
--- a/client/src/pages/add/index.vue
+++ b/client/src/pages/add/index.vue
@@ -195,6 +195,7 @@ onMounted(async () => {
       // 等待分类列表渲染完成后滚动到选中项
       nextTick(() => {
         setTimeout(() => { scrollToCat.value = 'cat-' + existing.category_id }, 200)
+        amountEditorRef.value?.focus()
       })
     } else {
       uni.showToast({ title: '记录不存在', icon: 'none' })
diff --git a/client/src/pages/recurring/index.vue b/client/src/pages/recurring/index.vue
index 9c9e10b..9b66678 100644
--- a/client/src/pages/recurring/index.vue
+++ b/client/src/pages/recurring/index.vue
@@ -153,7 +153,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, onMounted, nextTick } from 'vue'
+import { ref, computed, onMounted } from 'vue'
 import { waitForReady } from '@/utils/app-ready'
 import { statusBarHeight, capsuleRight } from '@/utils/system'
 import { formatAmount } from '@/utils/format'
@@ -233,7 +233,6 @@ function openAddModal() {
   if (cats.length > 0) form.value.category_id = cats[0].id
   amountStr.value = ''
   showModal.value = true
-  nextTick(() => amountEditorRef.value?.focus())
 }
 
 function openEditModal(item: RecurringTemplate) {
@@ -248,7 +247,6 @@ function openEditModal(item: RecurringTemplate) {
   }
   amountStr.value = (item.amount / 100).toString()
   showModal.value = true
-  nextTick(() => amountEditorRef.value?.focus())
 }
 
 async function toggleActive(item: RecurringTemplate) {