diff --git a/web-admin/src/api/oaApproval.ts b/web-admin/src/api/oaApproval.ts
index e72512be..e3a547cd 100644
--- a/web-admin/src/api/oaApproval.ts
+++ b/web-admin/src/api/oaApproval.ts
@@ -303,6 +303,8 @@ export type OaRelatedSummaryField = {
   label: string
   value: string
   fullWidth?: boolean
+  /** 嵌套关联审批单的 instanceId 列表（可跳转 / 打印递归） */
+  relatedIds?: string[]
 }
 
 export type OaRelatedSummary = {
diff --git a/web-admin/src/components/oa-approval/OaRelatedApproval.vue b/web-admin/src/components/oa-approval/OaRelatedApproval.vue
index b109119c..12b8efd6 100644
--- a/web-admin/src/components/oa-approval/OaRelatedApproval.vue
+++ b/web-admin/src/components/oa-approval/OaRelatedApproval.vue
@@ -34,14 +34,15 @@
             </template>
           </button>
           <div class="oa-related-approval__actions">
-            <el-button
+            <!-- 原生 button：避免 form.disabled 时 el-button 继承禁用 -->
+            <button
               v-if="!item.unavailable && (item.fields?.length || 0) > COLLAPSE_FIELD_COUNT"
-              link
-              type="primary"
-              @click="toggleExpand(item.id)"
+              type="button"
+              class="oa-related-approval__toggle"
+              @click.stop="toggleExpand(item.id)"
             >
               {{ expanded.has(item.id) ? '收起' : '展开' }}
-            </el-button>
+            </button>
             <el-button
               v-if="!disabled"
               link
@@ -77,6 +78,15 @@
                   {{ displayUrlLabel(u, ui, splitUrls(f.value).length) }}
                 </a>
               </template>
+              <template v-else-if="(f.relatedIds?.length || 0) > 0">
+                <button
+                  type="button"
+                  class="oa-related-approval__link-btn"
+                  @click.stop="goDetail(f.relatedIds![0])"
+                >
+                  {{ f.value }}
+                </button>
+              </template>
               <template v-else>{{ f.value }}</template>
             </span>
           </span>
@@ -453,6 +463,20 @@
     align-items: center;
   }
 
+  .oa-related-approval__toggle {
+    padding: 0;
+    border: 0;
+    background: transparent;
+    color: var(--primary, #10b981);
+    font-size: 13px;
+    line-height: 1.5;
+    cursor: pointer;
+  }
+
+  .oa-related-approval__toggle:hover {
+    color: var(--primary-dark, #059669);
+  }
+
   .oa-related-approval__fields {
     display: flex;
     flex-wrap: wrap;
@@ -493,6 +517,20 @@
     color: var(--primary-dark, #059669);
   }
 
+  .oa-related-approval__link-btn {
+    padding: 0;
+    border: 0;
+    background: transparent;
+    color: var(--primary, #10b981);
+    font: inherit;
+    text-decoration: underline;
+    cursor: pointer;
+  }
+
+  .oa-related-approval__link-btn:hover {
+    color: var(--primary-dark, #059669);
+  }
+
   .oa-related-approval--stack .oa-related-approval__fields {
     flex-direction: column;
     gap: 4px;