diff --git a/lang/en.json b/lang/en.json
index c01a3da..406b6b2 100644
--- a/lang/en.json
+++ b/lang/en.json
@@ -63,6 +63,7 @@
     "Add Pass Code": "Add Pass Code",
     "Add Pickup Code": "Add Pickup Code",
     "Add Product": "Add Product",
+    "Add Remark": "Add Remark",
     "Add Role": "Add Role",
     "Add Staff Card": "Add Staff Card",
     "Add Warehouse": "Add Warehouse",
diff --git a/lang/ja.json b/lang/ja.json
index e655d2a..c90775c 100644
--- a/lang/ja.json
+++ b/lang/ja.json
@@ -63,6 +63,7 @@
     "Add Pass Code": "パスコード追加",
     "Add Pickup Code": "受取コード追加",
     "Add Product": "商品追加",
+    "Add Remark": "備考を追加",
     "Add Role": "ロール追加",
     "Add Staff Card": "スタッフカード追加",
     "Add Warehouse": "倉庫追加",
diff --git a/lang/zh_TW.json b/lang/zh_TW.json
index 34c5719..bf9e562 100644
--- a/lang/zh_TW.json
+++ b/lang/zh_TW.json
@@ -63,6 +63,7 @@
     "Add Pass Code": "新增通行碼",
     "Add Pickup Code": "新增取貨碼",
     "Add Product": "新增商品",
+    "Add Remark": "新增備註",
     "Add Role": "新增角色",
     "Add Staff Card": "新增員工識別卡",
     "Add Warehouse": "新增倉庫",
diff --git a/resources/views/admin/sales/partials/tab-invoices.blade.php b/resources/views/admin/sales/partials/tab-invoices.blade.php
index cbf391a..156028d 100644
--- a/resources/views/admin/sales/partials/tab-invoices.blade.php
+++ b/resources/views/admin/sales/partials/tab-invoices.blade.php
@@ -175,6 +175,10 @@
                     class="px-6 py-4 text-xs font-bold text-slate-500 dark:text-slate-400 uppercase tracking-[0.15em] border-b border-slate-100 dark:border-slate-800">
                     {{ __('Associated Order') }}
                 </th>
+                <th
+                    class="px-6 py-4 text-xs font-bold text-slate-500 dark:text-slate-400 uppercase tracking-[0.15em] border-b border-slate-100 dark:border-slate-800">
+                    {{ __('Remark') }}
+                </th>
                 <th
                     class="px-6 py-4 text-xs font-bold text-slate-500 dark:text-slate-400 uppercase tracking-[0.15em] border-b border-slate-100 dark:border-slate-800 text-right">
                     {{ __('Action') }}
@@ -235,6 +239,9 @@
                         {{ $invoice->order->order_no ?? '---' }}
                     </span>
                 </td>
+                <td class="px-6 py-6">
+                    <x-remark-cell :url="route('admin.sales.invoices.remark', $invoice)" :value="$invoice->remark" />
+                </td>
                 <td class="px-6 py-6 text-right" @click.stop>
                     <div class="flex items-center justify-end gap-1.5">
                         @if(in_array($st, ['pending', 'failed']))
@@ -275,8 +282,8 @@
             </tr>
             @empty
             <tr>
-                <td colspan="6" class="py-20 text-center">
-                    <x-empty-state mode="table" colspan="6" :message="__('No invoices found')" />
+                <td colspan="8" class="py-20 text-center">
+                    <x-empty-state mode="table" colspan="8" :message="__('No invoices found')" />
                 </td>
             </tr>
             @endforelse
@@ -364,6 +371,12 @@
             </div>
         </div>
 
+        {{-- Remark --}}
+        <div class="mb-6">
+            <p class="text-[10px] font-black text-slate-400 dark:text-slate-500 uppercase tracking-widest mb-1">{{ __('Remark') }}</p>
+            <x-remark-cell :url="route('admin.sales.invoices.remark', $invoice)" :value="$invoice->remark" />
+        </div>
+
         {{-- Action Buttons --}}
         <div class="flex flex-col gap-3">
             <button @click="openDetail({{ $invoice->order_id }})"
diff --git a/resources/views/admin/sales/partials/tab-orders.blade.php b/resources/views/admin/sales/partials/tab-orders.blade.php
index bb84bda..4265e17 100644
--- a/resources/views/admin/sales/partials/tab-orders.blade.php
+++ b/resources/views/admin/sales/partials/tab-orders.blade.php
@@ -179,6 +179,10 @@
                     class="px-6 py-4 text-xs font-bold text-slate-500 dark:text-slate-400 uppercase tracking-[0.15em] border-b border-slate-100 dark:border-slate-800">
                     {{ __('Invoice Number') }}
                 </th>
+                <th
+                    class="px-6 py-4 text-xs font-bold text-slate-500 dark:text-slate-400 uppercase tracking-[0.15em] border-b border-slate-100 dark:border-slate-800">
+                    {{ __('Remark') }}
+                </th>
                 <th
                     class="px-6 py-4 text-xs font-bold text-slate-500 dark:text-slate-400 uppercase tracking-[0.15em] border-b border-slate-100 dark:border-slate-800 text-right">
                     {{ __('Action') }}
@@ -308,6 +312,9 @@
                     <span class="text-xs font-bold text-slate-300 dark:text-slate-700 tracking-widest">---</span>
                     @endif
                 </td>
+                <td class="px-6 py-6">
+                    <x-remark-cell :url="route('admin.sales.orders.remark', $order)" :value="$order->remark" />
+                </td>
                 <td class="px-6 py-6 text-right">
                     <button @click.stop="openDetail({{ $order->id }})"
                         class="p-2.5 rounded-xl text-slate-400 hover:text-cyan-500 hover:bg-cyan-500/5 dark:hover:bg-cyan-500/10 border border-transparent hover:border-cyan-500/20 transition-all group/btn"
@@ -324,8 +331,8 @@
             </tr>
             @empty
             <tr>
-                <td colspan="8" class="py-20 text-center">
-                    <x-empty-state mode="table" colspan="8" :message="__('No transaction orders found')" />
+                <td colspan="9" class="py-20 text-center">
+                    <x-empty-state mode="table" colspan="9" :message="__('No transaction orders found')" />
                 </td>
             </tr>
             @endforelse
@@ -456,6 +463,12 @@
             </div>
         </div>
 
+        {{-- Remark --}}
+        <div class="mb-6">
+            <p class="text-[10px] font-black text-slate-400 dark:text-slate-500 uppercase tracking-widest mb-1">{{ __('Remark') }}</p>
+            <x-remark-cell :url="route('admin.sales.orders.remark', $order)" :value="$order->remark" />
+        </div>
+
         {{-- Action Buttons --}}
         <div class="flex items-center gap-3">
             <button @click="openDetail({{ $order->id }})"
diff --git a/resources/views/components/remark-cell.blade.php b/resources/views/components/remark-cell.blade.php
new file mode 100644
index 0000000..6f3d8e9
--- /dev/null
+++ b/resources/views/components/remark-cell.blade.php
@@ -0,0 +1,50 @@
+@props([
+    'url',            // PATCH 端點（更新 remark）
+    'value' => null,  // 目前備註內容
+])
+
+{{-- 列表內嵌備註編輯：點擊文字進入編輯，fetch 儲存後 toast。@click.stop 避免觸發整列的開啟詳情。 --}}
+<div @click.stop class="min-w-[150px] max-w-[220px]"
+    x-data="{
+        editing: false,
+        saving: false,
+        value: @js($value ?? ''),
+        original: @js($value ?? ''),
+        cancel() { this.value = this.original; this.editing = false; },
+        save() {
+            this.saving = true;
+            fetch(@js($url), {
+                method: 'PATCH',
+                headers: { 'Content-Type': 'application/json', 'Accept': 'application/json', 'X-CSRF-TOKEN': @js(csrf_token()), 'X-Requested-With': 'XMLHttpRequest' },
+                body: JSON.stringify({ remark: this.value })
+            }).then(r => { if (!r.ok) throw 0; return r.json(); })
+              .then(d => { this.original = this.value; this.editing = false; window.showToast?.((d && d.message) || @js(__('Remark updated')), 'success'); })
+              .catch(() => window.showToast?.(@js(__('Operation failed')), 'error'))
+              .finally(() => this.saving = false);
+        }
+    }">
+    <template x-if="!editing">
+        <button type="button" @click="editing = true" class="group/rm flex items-start gap-1.5 text-left w-full">
+            <span class="text-sm font-bold whitespace-pre-wrap break-words line-clamp-2"
+                :class="value ? 'text-slate-600 dark:text-slate-300' : 'text-slate-300 dark:text-slate-600'"
+                x-text="value || @js(__('Add Remark'))"></span>
+            <svg class="w-3.5 h-3.5 shrink-0 mt-0.5 text-slate-300 dark:text-slate-600 opacity-0 group-hover/rm:opacity-100 transition-opacity"
+                fill="none" stroke="currentColor" viewBox="0 0 24 24" stroke-width="2">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M16.862 4.487l1.687-1.688a1.875 1.875 0 112.652 2.652L10.582 16.07a4.5 4.5 0 01-1.897 1.13L6 18l.8-2.685a4.5 4.5 0 011.13-1.897l8.932-8.931z" />
+            </svg>
+        </button>
+    </template>
+    <template x-if="editing">
+        <div class="space-y-2">
+            <textarea x-model="value" rows="2" maxlength="1000"
+                placeholder="{{ __('Enter remark (optional)') }}"
+                class="luxury-input w-full text-xs py-2 px-3 resize-none"></textarea>
+            <div class="flex items-center gap-1.5">
+                <button type="button" @click="save()" :disabled="saving"
+                    class="px-3 py-1.5 rounded-lg bg-cyan-500 hover:bg-cyan-600 text-white font-black text-[10px] uppercase tracking-widest disabled:opacity-60">{{ __('Save') }}</button>
+                <button type="button" @click="cancel()" :disabled="saving"
+                    class="px-3 py-1.5 rounded-lg bg-slate-100 dark:bg-slate-800 text-slate-600 dark:text-slate-300 font-black text-[10px] uppercase tracking-widest disabled:opacity-60">{{ __('Cancel') }}</button>
+            </div>
+        </div>
+    </template>
+</div>