diff --git a/src/routes/admin/pages/[id]/+page.svelte b/src/routes/admin/pages/[id]/+page.svelte
index 78c7e95..f43599d 100644
--- a/src/routes/admin/pages/[id]/+page.svelte
+++ b/src/routes/admin/pages/[id]/+page.svelte
@@ -26,12 +26,8 @@
 <div class="admin-page-header">
 	<h2>编辑{$page.data.aliases?.page || '页面'}</h2>
 	<div class="header-actions">
-		<Button
-			href={resolve('/[slug]', { slug: data.page.slug })}
-			target="_blank"
-			variant="secondary"
-			style="margin-right: 12px;"
-		>
+		<Button type="submit" form="page-form" variant="primary">保存修改</Button>
+		<Button href={resolve('/[slug]', { slug: data.page.slug })} target="_blank" variant="secondary">
 			前台预览
 		</Button>
 		<Button href={resolve('/admin/pages')} variant="secondary">&larr; 返回</Button>
@@ -42,7 +38,7 @@
 	<Alert message={form.error} />
 {/if}
 
-<form action="?/update" method="POST" class="post-form">
+<form action="?/update" method="POST" id="page-form" class="post-form">
 	<div class="form-grid">
 		<div class="form-main">
 			<div class="form-group">
@@ -101,11 +97,6 @@
 			/>
 
 			{#if sidebarTab === 'settings'}
-				<div class="sidebar-box">
-					<h3>更新</h3>
-					<Button type="submit" variant="primary" fullWidth class="submit-btn">保存修改</Button>
-				</div>
-
 				<div class="sidebar-box">
 					<h3>别名 *</h3>
 					<TextInput
@@ -147,6 +138,7 @@
 	.header-actions {
 		display: flex;
 		align-items: center;
+		gap: 10px;
 	}
 
 	.editor-header {
diff --git a/src/routes/admin/pages/new/+page.svelte b/src/routes/admin/pages/new/+page.svelte
index f093b40..c2dbc05 100644
--- a/src/routes/admin/pages/new/+page.svelte
+++ b/src/routes/admin/pages/new/+page.svelte
@@ -43,14 +43,17 @@
 
 <div class="admin-page-header">
 	<h2>新建独立{$page.data.aliases?.page || '页面'}</h2>
-	<Button href={resolve('/admin/pages')} variant="secondary">&larr; 返回</Button>
+	<div class="header-actions">
+		<Button type="submit" form="page-form" variant="primary">发布</Button>
+		<Button href={resolve('/admin/pages')} variant="secondary">&larr; 返回</Button>
+	</div>
 </div>
 
 {#if form?.error}
 	<Alert message={form.error} />
 {/if}
 
-<form method="POST" class="post-form">
+<form method="POST" id="page-form" class="post-form">
 	<div class="form-grid">
 		<div class="form-main">
 			<div class="form-group">
@@ -110,11 +113,6 @@
 			/>
 
 			{#if sidebarTab === 'settings'}
-				<div class="sidebar-box">
-					<h3>发布</h3>
-					<Button type="submit" variant="primary" fullWidth class="submit-btn">发布</Button>
-				</div>
-
 				<div class="sidebar-box">
 					<h3 style="display: flex; justify-content: space-between; align-items: center;">
 						<span>别名 *</span>
@@ -164,6 +162,12 @@
 		color: var(--text-color);
 	}
 
+	.header-actions {
+		display: flex;
+		align-items: center;
+		gap: 10px;
+	}
+
 	.editor-header {
 		display: flex;
 		justify-content: space-between;
diff --git a/src/routes/admin/posts/[id]/+page.svelte b/src/routes/admin/posts/[id]/+page.svelte
index 3996890..4bcd04e 100644
--- a/src/routes/admin/posts/[id]/+page.svelte
+++ b/src/routes/admin/posts/[id]/+page.svelte
@@ -112,6 +112,7 @@
 <div class="admin-page-header">
 	<h2>编辑</h2>
 	<div class="header-actions">
+		<Button type="submit" form="post-form" variant="primary">保存</Button>
 		<Button href={resolve('/admin/posts')} variant="secondary">&larr; 返回</Button>
 	</div>
 </div>
@@ -120,7 +121,7 @@
 	<Alert message={form.error} />
 {/if}
 
-<form method="POST" action="?/update" class="post-form">
+<form method="POST" action="?/update" id="post-form" class="post-form">
 	<input type="hidden" name="published_at" value={publishedAt} />
 	<input type="hidden" name="updated_at" value={updatedAt} />
 	<div class="form-grid">
@@ -185,11 +186,6 @@
 			/>
 
 			{#if sidebarTab === 'settings'}
-				<div class="sidebar-box">
-					<h3>保存</h3>
-					<Button type="submit" variant="primary" fullWidth class="submit-btn">保存</Button>
-				</div>
-
 				<div class="sidebar-box">
 					<h3>别名 *</h3>
 					<TextInput
@@ -237,7 +233,7 @@
 				</div>
 
 				<div class="sidebar-box">
-					<h3>标签</h3>
+					<h3>{$page.data.aliases?.tag || '标签'}</h3>
 					<div class="selected-tags-vertical">
 						{#each selectedTags as tagId (tagId)}
 							{#if tagsList.find((t) => t.id === tagId)}
@@ -248,7 +244,7 @@
 										type="button"
 										class="remove-tag-btn"
 										onclick={() => toggleTag(tagId)}
-										title="移除标签"
+										title="移除{$page.data.aliases?.tag || '标签'}"
 										><svg
 											viewBox="0 0 24 24"
 											width="14"
@@ -276,7 +272,7 @@
 						<TextInput
 							type="text"
 							class="tag-input-new"
-							placeholder="+ 添加标签..."
+							placeholder="+ 添加{$page.data.aliases?.tag || '标签'}..."
 							bind:value={newTagInput}
 							onkeydown={handleAddTag}
 							onfocus={() => (showTagDropdown = true)}
@@ -307,7 +303,10 @@
 						{/if}
 					</div>
 				</div>
-			{:else}
+			{/if}
+
+			<!-- 媒体面板始终挂载（仅切换显隐），确保特色图的隐藏表单项在表单提交时始终存在 -->
+			<div class="sidebar-panel" class:is-hidden={sidebarTab !== 'media'}>
 				<div class="sidebar-box">
 					<FeaturedImagePicker bind:cover adaptiveHeight previewable />
 				</div>
@@ -315,7 +314,7 @@
 					<h3>当前文章附件</h3>
 					<ArticleAttachments bind:content bind:sessionUploads />
 				</div>
-			{/if}
+			</div>
 		</div>
 	</div>
 </form>
@@ -405,6 +404,16 @@
 		z-index: 10;
 	}
 
+	.sidebar-panel {
+		display: flex;
+		flex-direction: column;
+		gap: 16px;
+	}
+
+	.sidebar-panel.is-hidden {
+		display: none;
+	}
+
 	@media (max-width: 900px) {
 		.form-grid {
 			grid-template-columns: 1fr;
diff --git a/src/routes/admin/posts/new/+page.svelte b/src/routes/admin/posts/new/+page.svelte
index cee560a..1c30fb6 100644
--- a/src/routes/admin/posts/new/+page.svelte
+++ b/src/routes/admin/posts/new/+page.svelte
@@ -130,6 +130,9 @@
 <div class="admin-page-header">
 	<h2>新{$page.data.aliases?.post || '文章'}</h2>
 	<div class="header-actions">
+		<Button type="submit" form="post-form" variant="primary">
+			发布{$page.data.aliases?.post || '文章'}
+		</Button>
 		<Button href={resolve('/admin/posts')} variant="secondary">&larr; 返回</Button>
 	</div>
 </div>
@@ -138,7 +141,7 @@
 	<Alert message={form.error} />
 {/if}
 
-<form method="POST" class="post-form">
+<form method="POST" id="post-form" class="post-form">
 	<input type="hidden" name="published_at" value={publishedAt} />
 	<input type="hidden" name="updated_at" value={updatedAt} />
 	<div class="form-grid">
@@ -203,13 +206,6 @@
 			/>
 
 			{#if sidebarTab === 'settings'}
-				<div class="sidebar-box">
-					<h3>发布</h3>
-					<Button type="submit" variant="primary" fullWidth class="publish-btn">
-						发布{$page.data.aliases?.post || '文章'}
-					</Button>
-				</div>
-
 				<div class="sidebar-box">
 					<h3 style="display: flex; justify-content: space-between; align-items: center;">
 						<span>别名 *</span>
@@ -269,7 +265,7 @@
 				</div>
 
 				<div class="sidebar-box">
-					<h3>标签</h3>
+					<h3>{$page.data.aliases?.tag || '标签'}</h3>
 					<div class="selected-tags-vertical">
 						{#each selectedTags as tagId (tagId)}
 							{#if tagsList.find((t) => t.id === tagId)}
@@ -280,7 +276,7 @@
 										type="button"
 										class="remove-tag-btn"
 										onclick={() => toggleTag(tagId)}
-										title="移除标签"
+										title="移除{$page.data.aliases?.tag || '标签'}"
 										><svg
 											viewBox="0 0 24 24"
 											width="14"
@@ -308,7 +304,7 @@
 						<TextInput
 							type="text"
 							class="tag-input-new"
-							placeholder="+ 添加标签..."
+							placeholder="+ 添加{$page.data.aliases?.tag || '标签'}..."
 							bind:value={newTagInput}
 							onkeydown={handleAddTag}
 							onfocus={() => (showTagDropdown = true)}
@@ -339,7 +335,10 @@
 						{/if}
 					</div>
 				</div>
-			{:else}
+			{/if}
+
+			<!-- 媒体面板始终挂载（仅切换显隐），确保特色图的隐藏表单项在表单提交时始终存在 -->
+			<div class="sidebar-panel" class:is-hidden={sidebarTab !== 'media'}>
 				<div class="sidebar-box">
 					<FeaturedImagePicker bind:cover adaptiveHeight previewable />
 				</div>
@@ -347,7 +346,7 @@
 					<h3>当前文章附件</h3>
 					<ArticleAttachments bind:content bind:sessionUploads />
 				</div>
-			{/if}
+			</div>
 		</div>
 	</div>
 </form>
@@ -437,6 +436,16 @@
 		z-index: 10;
 	}
 
+	.sidebar-panel {
+		display: flex;
+		flex-direction: column;
+		gap: 16px;
+	}
+
+	.sidebar-panel.is-hidden {
+		display: none;
+	}
+
 	@media (max-width: 900px) {
 		.form-grid {
 			grid-template-columns: 1fr;