diff --git a/src/api/budget/budgetCollectionPackage.js b/src/api/budget/budgetCollectionPackage.js
index 8978097..01c2433 100644
--- a/src/api/budget/budgetCollectionPackage.js
+++ b/src/api/budget/budgetCollectionPackage.js
@@ -57,6 +57,23 @@ export function batchDeleteBudgetCollectionPackage(ids) {
   })
 }
 
+// 手工重新计算单个大包的自动汇总金额
+export function recalculateBudgetCollectionPackageAmount(id) {
+  return request({
+    url: `${BUDGET_API_PREFIX}/budget-collection-package/${id}/recalculate-allocated-amount`,
+    method: 'post'
+  })
+}
+
+// 手工重新计算一个年度内全部大包的自动汇总金额
+export function recalculateBudgetCollectionYearPackageAmounts(yearId) {
+  return request({
+    url: `${BUDGET_API_PREFIX}/budget-collection-package/recalculate-year-allocated-amount`,
+    method: 'post',
+    data: { year_id: yearId }
+  })
+}
+
 // 获取预算包选择列表（用于下拉框）
 export function getBudgetCollectionPackageOptions(params) {
   return request({
@@ -158,4 +175,3 @@ export function getEconomicClassifications(params) {
     params
   })
 }
-
diff --git a/src/views/budget/collection/components/BudgetSubmissionForm.vue b/src/views/budget/collection/components/BudgetSubmissionForm.vue
index e094ab2..c4b5bee 100644
--- a/src/views/budget/collection/components/BudgetSubmissionForm.vue
+++ b/src/views/budget/collection/components/BudgetSubmissionForm.vue
@@ -131,10 +131,9 @@
               <template slot-scope="scope">
                 <el-input
                   v-if="!isViewMode && scope.row.selected"
-                  v-model.number="scope.row.amount"
-                  type="number"
-                  :min="0"
-                  :step="0.1"
+                  v-model="scope.row.amount"
+                  type="text"
+                  inputmode="decimal"
                   placeholder="请输入金额"
                   @input="validateTotal"
                 />
@@ -1444,7 +1443,7 @@ export default {
     formatCurrency(amount) {
       if (amount === null || amount === undefined || amount === '') return '0.00'
       const num = Number(amount)
-      return isFinite(num) ? num.toFixed(1) : '0.0'
+      return isFinite(num) ? num.toFixed(2) : '0.00'
     },
 
     submit() {
@@ -1514,7 +1513,7 @@ export default {
             otherNotes: this.formData.otherNotes ? this.formData.otherNotes.trim() : '',
             economicItems: selectedItems.map(item => ({
               categoryId: item.categoryId,
-              amount: parseFloat(item.amount),
+              amount: item.amount,
               calculationBasis: item.calculationBasis.trim(),
               fileIds: item.fileList ? item.fileList.map(f => f.fileId).filter(Boolean) : [] // 提交文件ID列表
             })),
diff --git a/src/views/budget/collection/components/SplitPackageForm.vue b/src/views/budget/collection/components/SplitPackageForm.vue
index 8296bbf..14ae5ec 100644
--- a/src/views/budget/collection/components/SplitPackageForm.vue
+++ b/src/views/budget/collection/components/SplitPackageForm.vue
@@ -141,10 +141,9 @@
         <el-table-column label="分配金额" width="200" align="center">
           <template slot-scope="scope">
             <el-input
-              v-model.number="scope.row.allocatedAmount"
-              type="number"
-              :min="0.1"
-              :step="0.1"
+              v-model="scope.row.allocatedAmount"
+              type="text"
+              inputmode="decimal"
               placeholder="请输入分配金额"
               @input="validateAllocation"
             >
@@ -439,7 +438,7 @@ export default {
       }
 
       // 验证金额分配
-      if (Math.abs(this.totalAllocated - this.packageData.allocated_amount) > 0.0001) {
+      if (Math.abs(this.totalAllocated - this.packageData.allocated_amount) > 0.01) {
         this.$message.error('分配金额总和必须等于预算分配金额')
         return
       }
@@ -473,7 +472,7 @@ export default {
         }
         
         // 验证金额格式
-        if (isNaN(parseFloat(item.allocatedAmount))) {
+        if (!Number.isFinite(Number(item.allocatedAmount))) {
           this.$message.error(`${item.departmentName}的分配金额格式不正确`)
           return
         }
@@ -513,7 +512,7 @@ export default {
             const allocation = {
               department_id: item.departmentId,
               package_id: item.packageId || '',
-              allocated_amount: parseFloat(item.allocatedAmount),
+              allocated_amount: item.allocatedAmount,
               package_name: item.childPackageName,
               description: item.description || ''
             }
@@ -563,11 +562,11 @@ export default {
     },
 
     formatCurrency(amount) {
-      if (amount === null || amount === undefined || amount === '') return '0.0'
+      if (amount === null || amount === undefined || amount === '') return '0.00'
       const num = Number(amount)
       return isFinite(num)
-        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 1, maximumFractionDigits: 1 })
-        : '0.0'
+        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+        : '0.00'
     }
   }
 }
@@ -639,4 +638,4 @@ export default {
 .form-actions .el-button {
   margin-left: 10px;
 }
-</style>
\ No newline at end of file
+</style>
diff --git a/src/views/budget/collection/components/SummarySubmitForm.vue b/src/views/budget/collection/components/SummarySubmitForm.vue
index 3411918..24619bb 100644
--- a/src/views/budget/collection/components/SummarySubmitForm.vue
+++ b/src/views/budget/collection/components/SummarySubmitForm.vue
@@ -157,10 +157,9 @@
               <template slot-scope="scope">
                 <el-input
                   v-if="!isViewMode && scope.row.selected"
-                  v-model.number="scope.row.amount"
-                  type="number"
-                  :min="0"
-                  :step="0.1"
+                  v-model="scope.row.amount"
+                  type="text"
+                  inputmode="decimal"
                   placeholder="请输入金额"
                   @input="validateTotal"
                 />
@@ -1440,7 +1439,7 @@ export default {
     formatCurrency(amount) {
       if (amount === null || amount === undefined || amount === '') return '0.00'
       const num = Number(amount)
-      return isFinite(num) ? num.toFixed(1) : '0.0'
+      return isFinite(num) ? num.toFixed(2) : '0.00'
     },
 
     submit() {
@@ -1509,7 +1508,7 @@ export default {
             otherNotes: this.formData.otherNotes ? this.formData.otherNotes.trim() : '',
             economicItems: selectedItems.map(item => ({
               categoryId: item.categoryId,
-              amount: parseFloat(item.amount),
+              amount: item.amount,
               calculationBasis: item.calculationBasis.trim(),
               fileIds: item.fileList ? item.fileList.map(f => f.fileId).filter(Boolean) : [] // 提交文件ID列表
             })),
diff --git a/src/views/budget/collection/departmentSubmission.vue b/src/views/budget/collection/departmentSubmission.vue
index fa9d975..2d48488 100644
--- a/src/views/budget/collection/departmentSubmission.vue
+++ b/src/views/budget/collection/departmentSubmission.vue
@@ -344,11 +344,11 @@ export default {
     },
 
     formatCurrency(amount) {
-      if (amount === null || amount === undefined || amount === '') return '0.0'
+      if (amount === null || amount === undefined || amount === '') return '0.00'
       const num = Number(amount)
       return isFinite(num)
-        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 0, maximumFractionDigits: 0 })
-        : '0.0'
+        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+        : '0.00'
     },
 
     formatDate(dateStr) {
diff --git a/src/views/budget/collection/leadDepartment.vue b/src/views/budget/collection/leadDepartment.vue
index 50bbfab..39866cc 100644
--- a/src/views/budget/collection/leadDepartment.vue
+++ b/src/views/budget/collection/leadDepartment.vue
@@ -591,11 +591,11 @@ export default {
     },
 
     formatCurrency(amount) {
-      if (amount === null || amount === undefined || amount === '') return '0.0'
+      if (amount === null || amount === undefined || amount === '') return '0.00'
       const num = Number(amount)
       return isFinite(num)
-        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 1, maximumFractionDigits: 1 })
-        : '0.0'
+        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+        : '0.00'
     },
 
     formatDate(dateStr) {
diff --git a/src/views/budget/collection/package.vue b/src/views/budget/collection/package.vue
index b460fa4..c4a9e37 100644
--- a/src/views/budget/collection/package.vue
+++ b/src/views/budget/collection/package.vue
@@ -33,6 +33,7 @@
                 <Button type="primary" @click="load">查询</Button>
                 <Button type="primary" @click="edit()">新增预算包</Button>
                 <Button type="error" @click="batchDelete" :disabled="selectedRows.length === 0">批量删除</Button>
+                <Button type="warning" @click="recalculateYearAmounts">重算年度大包金额</Button>
                 <Button type="success" @click="toggleTreeView">{{ showTree ? '列表视图' : '树形视图' }}</Button>
                 <Button type="warning" @click="showSummaryView">汇总查看</Button>
               </div>
@@ -91,7 +92,13 @@
           </template>
         </el-table-column>
 
-        <el-table-column prop="allocated_amount" label="分配金额" width="120" align="right">
+        <el-table-column prop="sort_order" label="排序" width="80" align="center">
+          <template slot-scope="scope">
+            {{ scope.row.sort_order || '-' }}
+          </template>
+        </el-table-column>
+
+        <el-table-column prop="allocated_amount" label="分配金额（大包自动汇总）" width="180" align="right">
           <template slot-scope="scope">
             <span style="color: #409EFF; font-weight: bold;">
               {{ formatCurrency(scope.row.allocated_amount) }} 万元
@@ -149,15 +156,15 @@
             >
               删除
             </Button>
-            <Button 
+            <Button
               v-if="scope.row.level === 1"
-              type="warning" 
-              @click="multiPackageSubmit(scope.row)" 
+              type="warning"
+              @click="recalculatePackageAmount(scope.row)"
               size="small" 
               style="margin-right: 5px;" 
               ghost
             >
-              多包汇总提交
+              重新计算金额
             </Button>
             <Button 
               type="primary" 
@@ -225,7 +232,13 @@
           </template>
         </el-table-column>
 
-        <el-table-column prop="allocated_amount" label="分配金额" width="120" align="right">
+        <el-table-column prop="sort_order" label="排序" width="80" align="center">
+          <template slot-scope="scope">
+            {{ scope.row.sort_order || '-' }}
+          </template>
+        </el-table-column>
+
+        <el-table-column prop="allocated_amount" label="分配金额（大包自动汇总）" width="180" align="right">
           <template slot-scope="scope">
             <span style="color: #409EFF; font-weight: bold;">
               {{ formatCurrency(scope.row.allocated_amount) }} 万元
@@ -289,15 +302,15 @@
             >
               删除
             </Button>
-            <Button 
+            <Button
               v-if="scope.row.level === 1"
-              type="warning" 
-              @click="multiPackageSubmit(scope.row)" 
+              type="warning"
+              @click="recalculatePackageAmount(scope.row)"
               size="small" 
               style="margin-right: 5px;" 
               ghost
             >
-              多包汇总提交
+              重新计算金额
             </Button>
             <Button 
               type="primary" 
@@ -709,7 +722,7 @@
                 <el-option
                   v-for="item in yearOptions"
                   :key="item.value"
-                  :label="item.year + '年'"
+                  :label="item.label || (item.year + '年')"
                   :value="item.value"
                 />
               </el-select>
@@ -722,6 +735,21 @@
           </el-col>
         </el-row>
 
+        <el-row :gutter="20">
+          <el-col :span="12">
+            <el-form-item label="同级排序" prop="sort_order">
+              <el-input-number
+                v-model="form.sort_order"
+                :min="1"
+                :step="1"
+                controls-position="right"
+                placeholder="留空则自动排在同级最后"
+                style="width: 100%"
+              />
+            </el-form-item>
+          </el-col>
+        </el-row>
+
         <el-row :gutter="20">
           <el-col :span="12">
             <el-form-item label="上级预算包" prop="parent_id">
@@ -731,6 +759,7 @@
                 style="width: 100%" 
                 clearable
                 @change="onParentChange"
+                :disabled="isMiddlePackageParentLocked"
               >
                 <el-option
                   v-for="item in parentPackageOptions"
@@ -743,38 +772,39 @@
           </el-col>
           <el-col :span="12">
             <el-form-item label="层级" prop="level">
-              <el-select v-model="form.level" placeholder="请选择层级" style="width: 100%" :disabled="!!form.parent_id">
-                <el-option label="大包" :value="1" />
-                <el-option label="中包" :value="2" />
-              </el-select>
+              <el-input :value="form.level === 1 ? '大包（自动汇总）' : '中包'" disabled />
             </el-form-item>
           </el-col>
         </el-row>
 
         <el-row :gutter="20">
           <el-col :span="12">
-            <el-form-item label="分配金额" prop="allocated_amount">
+            <el-form-item v-if="form.level === 1" label="自动汇总金额">
+              <el-input :value="formatCurrency(form.allocated_amount)" disabled>
+                <template slot="append">万元</template>
+              </el-input>
+            </el-form-item>
+            <el-form-item v-else label="分配金额" prop="allocated_amount">
               <el-input
-                v-model.number="form.allocated_amount"
+                v-model="form.allocated_amount"
                 placeholder="请输入分配金额"
-                type="number"
-                :min="0"
-                :step="0.1"
-                @blur="formatAmount4('allocated_amount')"
+                type="text"
+                inputmode="decimal"
               >
                 <template slot="append">万元</template>
               </el-input>
+              <div v-if="isMiddlePackageDistributed" style="margin-top: 6px; color: #e6a23c; line-height: 18px;">
+                修改金额后，请由牵头科室重新分配执行科室金额。
+              </div>
             </el-form-item>
           </el-col>
           <el-col :span="12">
             <el-form-item label="分解金额" prop="decomposed_amount">
               <el-input
-                v-model.number="form.decomposed_amount"
+                v-model="form.decomposed_amount"
                 placeholder="请输入分解金额（可选）"
-                type="number"
-                :min="0"
-                :step="0.1"
-                @blur="formatAmount4('decomposed_amount', true)"
+                type="text"
+                inputmode="decimal"
               >
                 <template slot="append">万元</template>
               </el-input>
@@ -1079,6 +1109,8 @@ import {
   updateBudgetCollectionPackage,
   deleteBudgetCollectionPackage,
   batchDeleteBudgetCollectionPackage,
+  recalculateBudgetCollectionPackageAmount,
+  recalculateBudgetCollectionYearPackageAmounts,
   getBudgetCollectionPackageOptions,
   getBudgetCollectionPackageSummary,
   getEconomicClassifications
@@ -1119,6 +1151,7 @@ export default {
         name: '',
         parent_id: null,
         level: 1,
+        sort_order: null,
         allocated_amount: 0,
         decomposed_amount: null,
         department_id: null,
@@ -1243,6 +1276,18 @@ export default {
       return this.mergeMethodByDept
     },
 
+    isMiddlePackageDistributed() {
+      return this.form.level === 2 && (
+        Number(this.form.decomposed_amount || 0) > 0 ||
+        this.form.hasChildren ||
+        (Array.isArray(this.form.children) && this.form.children.length > 0)
+      )
+    },
+
+    isMiddlePackageParentLocked() {
+      return this.isMiddlePackageDistributed || !!this.form.submission
+    },
+
     // 按经济分类统计合并方法
     economicMergeMethod() {
       return this.mergeMethodByEconomic
@@ -1267,17 +1312,6 @@ export default {
     this.load()
   },
   methods: {
-    formatAmount4(key, allowEmpty = false) {
-      let v = this.form[key]
-      if (v === '' || v === null || v === undefined) {
-        if (allowEmpty) return
-        this.$set(this.form, key, 0)
-        v = 0
-      }
-      const num = Number(v)
-      if (!isFinite(num)) return
-      this.$set(this.form, key, Number(num.toFixed(1)))
-    },
     initLoad() {
       const clientHeight = document.documentElement.clientHeight
       const lxHeaderHeight = 140
@@ -1301,24 +1335,28 @@ export default {
       try {
         // 加载预算年度选项
         const yearResponse = await getBudgetCollectionYearOptions()
-        if (yearResponse && yearResponse.code === 0) {
-          let yearData = yearResponse.data
-          
-          // 如果data是字符串，尝试解析JSON
-          if (typeof yearData === 'string') {
-            try {
-              yearData = JSON.parse(yearData)
-            } catch (e) {
-              console.error('解析年度选项JSON失败:', e)
-              yearData = []
-            }
-          }
-          
-          if (Array.isArray(yearData)) {
-            this.yearOptions = yearData
+        // request 拦截器成功时会直接返回 data；同时兼容未经过拦截器的响应结构。
+        let yearData = yearResponse && yearResponse.code === 0
+          ? yearResponse.data
+          : yearResponse
+
+        if (yearData && !Array.isArray(yearData) && Array.isArray(yearData.data)) {
+          yearData = yearData.data
+        }
+
+        if (typeof yearData === 'string') {
+          try {
+            yearData = JSON.parse(yearData)
+          } catch (e) {
+            console.error('解析年度选项JSON失败:', e)
+            yearData = []
           }
         }
 
+        if (Array.isArray(yearData)) {
+          this.yearOptions = yearData
+        }
+
         // 加载部门选项
         const deptResponse = await listdeptNoAuth()
         if (deptResponse) {
@@ -1465,6 +1503,11 @@ export default {
       if (obj) {
         this.form = { ...this.form, ...obj }
       }
+
+      // 初始异步加载尚未完成时，确保弹窗打开前已有年度 ID 到年份文本的映射。
+      if (!this.yearOptions.length) {
+        await this.loadOptions()
+      }
       
       // 设置默认年度
       if (!this.form.year_id && this.searchFields.year_id) {
@@ -1505,6 +1548,10 @@ export default {
           this.submitting = true
           try {
             const formData = { ...this.form }
+            if (formData.level === 1) {
+              // 一级大包金额是服务端汇总字段，严禁随表单提交。
+              delete formData.allocated_amount
+            }
             // 清空 null 值
             Object.keys(formData).forEach(key => {
               if (formData[key] === null || formData[key] === '') {
@@ -1568,6 +1615,52 @@ export default {
       })
     },
 
+    recalculatePackageAmount(row) {
+      this.$Modal.confirm({
+        title: '确认重新计算',
+        content: `将按直属中包金额重新计算大包“${row.name}”，是否继续？`,
+        onOk: async () => {
+          try {
+            const response = await recalculateBudgetCollectionPackageAmount(row.id)
+            const result = response && response.data ? response.data : response
+            if (result && result.skipped) {
+              this.$Message.warning(result.reason)
+            } else if (result) {
+              this.$Message.success(result.changed ? `计算完成：${result.old_amount} → ${result.new_amount} 万元` : '金额无需更新')
+            }
+            this.load()
+          } catch (error) {
+            this.$Message.error((error.response && error.response.data && error.response.data.message) || '重新计算失败')
+          }
+        }
+      })
+    },
+
+    recalculateYearAmounts() {
+      if (!this.searchFields.year_id) {
+        this.$Message.warning('请先选择预算年度')
+        return
+      }
+
+      this.$Modal.confirm({
+        title: '确认重算年度大包金额',
+        content: '将重新计算当前年度全部结构正常的大包金额；存在历史层级异常的大包会被安全跳过。',
+        onOk: async () => {
+          try {
+            const response = await recalculateBudgetCollectionYearPackageAmounts(this.searchFields.year_id)
+            const result = response && response.data ? response.data : response
+            if (result) {
+              const skipped = Array.isArray(result.skipped) ? result.skipped.length : 0
+              this.$Message.success(`已处理${result.processed_count || 0}个大包，更新${result.changed_count || 0}个，跳过${skipped}个`)
+            }
+            this.load()
+          } catch (error) {
+            this.$Message.error((error.response && error.response.data && error.response.data.message) || '批量重新计算失败')
+          }
+        }
+      })
+    },
+
     batchDelete() {
       if (this.selectedRows.length === 0) {
         this.$Message.warning('请选择要删除的记录')
@@ -1603,6 +1696,7 @@ export default {
         name: '',
         parent_id: null,
         level: 1,
+        sort_order: null,
         allocated_amount: 0,
         decomposed_amount: null,
         department_id: null,
@@ -1611,11 +1705,11 @@ export default {
     },
 
     formatCurrency(amount) {
-      if (amount === null || amount === undefined || amount === '') return '0.0'
+      if (amount === null || amount === undefined || amount === '') return '0.00'
       const num = Number(amount)
       return isFinite(num)
-        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 1, maximumFractionDigits: 1 })
-        : '0.0'
+        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+        : '0.00'
     },
 
     formatDate(dateStr) {
@@ -2386,11 +2480,11 @@ export default {
 
     // 格式化金额显示
     formatAmount(amount) {
-      if (amount === null || amount === undefined || amount === '') return '0'
+      if (amount === null || amount === undefined || amount === '') return '0.00'
       const num = Number(amount)
       return isFinite(num) 
-        ? num.toLocaleString('zh-CN', { maximumFractionDigits: 1 })
-        : '0.0'
+        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+        : '0.00'
     },
 
     // 计算交叉表合计
@@ -3742,4 +3836,4 @@ export default {
   word-break: break-all;
   white-space: normal;
 }
-</style>
\ No newline at end of file
+</style>
diff --git a/src/views/budget/collection/year.vue b/src/views/budget/collection/year.vue
index 3bda709..d4bfa2d 100644
--- a/src/views/budget/collection/year.vue
+++ b/src/views/budget/collection/year.vue
@@ -167,12 +167,10 @@
           <el-col :span="12">
             <el-form-item label="总预算（万元）" prop="total_amount">
               <el-input
-                v-model.number="form.total_amount"
+                v-model="form.total_amount"
                 placeholder="请输入总预算金额"
-                type="number"
-                :min="0"
-                :step="0.1"
-                :precision="1"
+                type="text"
+                inputmode="decimal"
               >
                 <template slot="prepend">￥</template>
                 <template slot="append">万元</template>
@@ -788,11 +786,11 @@ export default {
     },
 
     formatCurrency(amount) {
-      if (amount === null || amount === undefined || amount === '') return '0.0000'
+      if (amount === null || amount === undefined || amount === '') return '0.00'
       const num = Number(amount)
       return isFinite(num)
-        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 4, maximumFractionDigits: 4 })
-        : '0.0000'
+        ? num.toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+        : '0.00'
     },
 
     formatDate(dateStr) {