diff --git a/client/src/pages/admin/Export.tsx b/client/src/pages/admin/Export.tsx
index 19b767e..a58ca71 100644
--- a/client/src/pages/admin/Export.tsx
+++ b/client/src/pages/admin/Export.tsx
@@ -339,7 +339,7 @@ export default function Export() {
               <h3 className="font-semibold text-lg mb-3 border-l-4 border-primary-500 pl-3 inline-flex items-center gap-2 text-gray-800">
                 <span className="chip-primary">03</span> 全部时长明细（{preview.hours.length} 条）
               </h3>
-              <MiniTable heads={['班级', '姓名', '活动', '时长(h)', '备注']} rows={preview.hours.map((h: any) => [h.class, h.name, h.activity_title, Number(h.hours || 0).toFixed(2), h.remark || '-'])} />
+              <MiniTable heads={['序号', '班级', '姓名', '义工号', '工作组', '活动', '时长(h)', '备注']} rows={preview.hours.map((h: any, i) => [i + 1, h.class, h.name, h.volunteer_no || '-', h.group_name || '-', h.activity_title, Number(h.hours || 0).toFixed(2), h.remark || '-'])} />
             </section>
           ) : null}
           {preview.user_totals?.length ? (
@@ -347,7 +347,7 @@ export default function Export() {
               <h3 className="font-semibold text-lg mb-3 border-l-4 border-primary-500 pl-3 inline-flex items-center gap-2 text-gray-800">
                 <span className="chip-primary">04</span> 部员总时长排行
               </h3>
-              <MiniTable heads={['排名', '班级', '姓名', '工作组', '活动数', '累计时长(h)']} rows={preview.user_totals.map((u, i) => [i + 1, u.class, u.name, u.group_name || '-', u.activity_count, Number(u.total_hours || 0).toFixed(2)])} />
+              <MiniTable heads={['排名', '班级', '姓名', '义工号', '工作组', '活动数', '累计时长(h)']} rows={preview.user_totals.map((u, i) => [i + 1, u.class, u.name, u.volunteer_no || '-', u.group_name || '-', u.activity_count, Number(u.total_hours || 0).toFixed(2)])} />
             </section>
           ) : null}
           {preview.user_activities?.length ? (
@@ -359,7 +359,11 @@ export default function Export() {
                 {preview.user_activities.map(u => (
                   <div key={u.id} className="card overflow-hidden">
                     <div className="bg-[#275354] text-white px-4 py-2.5 border-b border-gray-200 font-semibold flex items-center justify-between flex-wrap gap-2">
-                      <span>{u.class} {u.name}{u.group_name ? ` (${u.group_name})` : ''}</span>
+                      <div className="flex items-center gap-3 flex-wrap">
+                        <span>{u.class} {u.name}</span>
+                        <span className="font-mono text-[12px] tracking-wider text-white/90 bg-white/10 rounded px-2 py-0.5">义工号：{u.volunteer_no || '—'}</span>
+                        {u.group_name ? <span className="text-xs font-medium text-white/85">工作组：{u.group_name}</span> : null}
+                      </div>
                       <span className="text-xs font-medium text-white/85 font-mono tracking-wider">共 {u.activities.length} 次活动</span>
                     </div>
                     {u.activities.length === 0 ? (