diff --git a/src/views/oa/erp/finAccountInstallment/edit.vue b/src/views/oa/erp/finAccountInstallment/edit.vue
index 6509641..c3338c0 100644
--- a/src/views/oa/erp/finAccountInstallment/edit.vue
+++ b/src/views/oa/erp/finAccountInstallment/edit.vue
@@ -17,7 +17,7 @@
       <template #header>
         <div class="flex items-center justify-between">
           <div style="text-align: left; font-weight: bold; font-size: 24px">{{ pageTitle }}</div>
-          <el-button v-if="canEditDetail" type="primary" @click="handleAddDetail">
+          <el-button v-if="canEditDetail" type="primary" :disabled="!canAddDetail" @click="handleAddDetail">
             <el-icon class="mr-1"><Plus /></el-icon>
             新增分款
           </el-button>
@@ -232,6 +232,9 @@ const remainingAmount = computed(() => Number(form.value.paymentAmount || 0) - a
 /** 分款金额与回款金额平衡容差（元） */
 const ALLOCATION_AMOUNT_EPS = 0.005;
 
+/** 剩余可分大于 0 时才允许新增分款 */
+const canAddDetail = computed(() => canEditDetail.value && remainingAmount.value > ALLOCATION_AMOUNT_EPS);
+
 /** 提交/审批前校验：分款总额须等于回款金额 */
 const validateAllocationBeforeSubmit = (): boolean => {
   const remain = remainingAmount.value;
@@ -445,6 +448,10 @@ const handleAddDetail = () => {
   if (!canEditDetail.value) {
     return;
   }
+  if (!canAddDetail.value) {
+    proxy?.$modal.msgWarning('剩余可分金额为0，无法新增分款');
+    return;
+  }
   showProjectDialog.value = true;
 };
 
diff --git a/src/views/oa/erp/orderLedger/index.vue b/src/views/oa/erp/orderLedger/index.vue
index 528bc5e..2f90dfd 100644
--- a/src/views/oa/erp/orderLedger/index.vue
+++ b/src/views/oa/erp/orderLedger/index.vue
@@ -316,7 +316,7 @@
           </div>
         </el-tab-pane>
 
-        <!-- 回款信息 Tab：仅创建人、合同负责人、角色 CVP 可见 -->
+        <!-- 回款信息 Tab：创建人、合同负责人、角色 CVP、超级管理员可见 -->
         <el-tab-pane v-if="canViewPaymentLedger" label="回款信息" name="payment">
           <div v-loading="loadingPayment" class="tab-content">
             <div class="section-header">
@@ -547,9 +547,12 @@ const sameUserId = (a: unknown, b: unknown): boolean => {
   return String(a) === String(b);
 };
 
-/** 回款信息：本合同订单创建人、合同负责人、或角色权限字符含 CVP */
+/** 回款信息：超级管理员、本合同订单创建人、合同负责人、或角色权限字符含 CVP */
 const canViewPaymentLedger = computed(() => {
   const roles = userStore.roles ?? [];
+  if (roles.includes('superadmin')) {
+    return true;
+  }
   if (roles.some((r) => r === PAYMENT_LEDGER_ROLE_KEY)) {
     return true;
   }