diff --git a/src/admin.css b/src/admin.css
index 0cabdb5..79154a9 100644
--- a/src/admin.css
+++ b/src/admin.css
@@ -862,6 +862,21 @@ body {
 .form-image-filter-region {
     container-type: inline-size;
     margin-block: 16px;
+    padding: 14px 16px;
+    background: var(--app-subtle);
+}
+/* 镜头选择和图库筛选共用一行，以控件中心对齐；窄屏保留完整筛选组，不挤压复选框。 */
+.form-image-toolbar {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr);
+    align-items: center;
+    gap: 12px 16px;
+}
+.form-image-toolbar.has-impact-picker {
+    grid-template-columns: minmax(220px, 340px) minmax(0, 1fr);
+}
+.form-image-toolbar > * {
+    min-width: 0;
 }
 .form-image-filters {
     display: grid;
@@ -888,6 +903,11 @@ body {
     font-size: 12px;
     white-space: nowrap;
 }
+@container (max-width: 1200px) {
+    .form-image-toolbar.has-impact-picker {
+        grid-template-columns: minmax(0, 1fr);
+    }
+}
 @container (max-width: 900px) {
     .form-image-filters {
         grid-template-columns: minmax(0, 1fr) 152px;
@@ -1466,8 +1486,8 @@ body {
     background: var(--app-subtle);
 }
 .asset-impact-select {
-    flex: 0 1 340px;
     min-width: 0;
+    width: 100%;
 }
 .form-image-card-focused {
     box-shadow: inset 3px 0 0 var(--app-accent-text);
diff --git a/src/components/ui/flatTheme.test.ts b/src/components/ui/flatTheme.test.ts
index 95caafe..0ef00c0 100644
--- a/src/components/ui/flatTheme.test.ts
+++ b/src/components/ui/flatTheme.test.ts
@@ -141,6 +141,21 @@ describe('全站平面主题', () => {
         expect(tools).not.toContain(':focusable="false"')
     })
 
+    it('图库顶部统一镜头选择和筛选的背景与垂直对齐，窄屏整组换行', () => {
+        // DOM 环境不计算几何；保护容器宽度断点和居中契约，真实坐标仍需浏览器验收。
+        const css = readFileSync('src/admin.css', 'utf8')
+        expect(css).toMatch(
+            /\.form-image-filter-region\s*\{[^}]*padding:\s*14px 16px;[^}]*background:\s*var\(--app-subtle\);/
+        )
+        expect(css).toMatch(/\.form-image-toolbar\s*\{[^}]*align-items:\s*center;[^}]*gap:\s*12px 16px;/)
+        expect(css).toMatch(
+            /\.form-image-toolbar\.has-impact-picker\s*\{[^}]*grid-template-columns:\s*minmax\(220px, 340px\) minmax\(0, 1fr\);/
+        )
+        expect(css).toMatch(
+            /@container \(max-width: 1200px\)\s*\{\s*\.form-image-toolbar\.has-impact-picker\s*\{[^}]*grid-template-columns:\s*minmax\(0, 1fr\);/
+        )
+    })
+
     it('单图标按钮以当前控件高度为边长，尺寸与内容按钮互不影响', () => {
         // happy-dom 不计算几何尺寸，此项约束共用样式和调用方，实际布局仍需浏览器验收。
         const css = readFileSync('src/admin.css', 'utf8')
diff --git a/src/features/subject-images/SubjectImagesPage.vue b/src/features/subject-images/SubjectImagesPage.vue
index 3dfa352..70a3d8e 100644
--- a/src/features/subject-images/SubjectImagesPage.vue
+++ b/src/features/subject-images/SubjectImagesPage.vue
@@ -379,13 +379,10 @@ async function showStaleForms() {
                 >镜头影响检查失败，暂时无法确认有无过期首帧：{{ impact.query.error.value }}
                 <NButton text size="small" @click="impact.query.refresh">重试检查</NButton></NAlert
             >
-            <div
-                v-if="impactOptions.length || sourceShotId"
-                class="asset-impact-context mt-3"
-                aria-label="镜头与素材定位"
-            >
-                <div class="flex flex-wrap items-center gap-3">
+            <div class="form-image-filter-region">
+                <div class="form-image-toolbar" :class="{ 'has-impact-picker': impactOptions.length || sourceShotId }">
                     <NSelect
+                        v-if="impactOptions.length || sourceShotId"
                         :value="sourceShot?.shotId ?? null"
                         :options="impactOptions"
                         placeholder="选择过期镜头，查看关联素材"
@@ -394,6 +391,34 @@ async function showStaleForms() {
                         class="asset-impact-select"
                         @update:value="selectImpactShot"
                     />
+                    <div class="form-image-filters" role="group" aria-label="形态图片筛选">
+                        <NInput
+                            placeholder="搜索主体、引用或形态"
+                            :input-props="{ 'aria-label': '搜索形态图片' }"
+                            v-model:value="search"
+                            clearable
+                            ><template #prefix><Search :size="14" /></template
+                        ></NInput>
+                        <NSelect
+                            aria-label="筛选主体类型"
+                            v-model:value="module"
+                            :options="[
+                                { label: String('全部类型'), value: 'all' },
+                                { label: String('人物'), value: 'character' },
+                                { label: String('场景'), value: 'scene' },
+                                { label: String('道具'), value: 'prop' }
+                            ]"
+                        ></NSelect>
+                        <div class="filter-toggles">
+                            <NCheckbox v-model:checked="onlyMissing">仅看缺少主图</NCheckbox>
+                            <NCheckbox v-model:checked="onlyStale">仅看身份过期</NCheckbox>
+                        </div>
+                        <span class="filter-result-count">{{ filtered.length }} 个形态</span>
+                    </div>
+                </div>
+            </div>
+            <div v-if="sourceShotId" class="asset-impact-context mt-3" aria-label="镜头与素材定位">
+                <div class="flex flex-wrap items-center gap-3">
                     <RouterLink v-if="sourceLocation" :to="sourceLocation" class="text-button"
                         >返回第 {{ sourceShot?.episodeNo }} 集 · 镜头 {{ sourceShot?.shotNo }} →</RouterLink
                     >
@@ -470,32 +495,6 @@ async function showStaleForms() {
                 }}</template>
                 <NButton text size="small" @click="resetFilters">清除定位</NButton>
             </NAlert>
-            <div class="form-image-filter-region">
-                <div class="form-image-filters" role="group" aria-label="形态图片筛选">
-                    <NInput
-                        placeholder="搜索主体、引用或形态"
-                        :input-props="{ 'aria-label': '搜索形态图片' }"
-                        v-model:value="search"
-                        clearable
-                        ><template #prefix><Search :size="14" /></template
-                    ></NInput>
-                    <NSelect
-                        aria-label="筛选主体类型"
-                        v-model:value="module"
-                        :options="[
-                            { label: String('全部类型'), value: 'all' },
-                            { label: String('人物'), value: 'character' },
-                            { label: String('场景'), value: 'scene' },
-                            { label: String('道具'), value: 'prop' }
-                        ]"
-                    ></NSelect>
-                    <div class="filter-toggles">
-                        <NCheckbox v-model:checked="onlyMissing">仅看缺少主图</NCheckbox>
-                        <NCheckbox v-model:checked="onlyStale">仅看身份过期</NCheckbox>
-                    </div>
-                    <span class="filter-result-count">{{ filtered.length }} 个形态</span>
-                </div>
-            </div>
             <NAlert v-if="query.error.value" role="alert" type="error" :show-icon="false" class="mt-4"
                 >{{ query.error.value }}<span v-if="forms.length"> 当前展示上次读取的数据。</span></NAlert
             ><NAlert v-if="running" role="status" type="info" :show-icon="false" class="mt-4">
diff --git a/src/features/subject-images/asset-impact.test.ts b/src/features/subject-images/asset-impact.test.ts
index 2d53115..d051134 100644
--- a/src/features/subject-images/asset-impact.test.ts
+++ b/src/features/subject-images/asset-impact.test.ts
@@ -229,11 +229,22 @@ describe('过期首帧到具体素材定位', () => {
         expect(wrapper!.findAll('.form-image-card')).toHaveLength(3)
         expect(wrapper!.text()).not.toContain('个形态主图与当前已锁定身份母版不一致')
         expect(fetcher.mock.calls.some(([url]) => String(url).endsWith('/references'))).toBe(false)
+        // 镜头选择和图库筛选共享上方工具栏；未选择镜头时不留下空的关联说明面板。
+        const toolbar = wrapper!.get('.form-image-toolbar')
+        const picker = toolbar.get('.asset-impact-select').element
+        expect(toolbar.classes()).toContain('has-impact-picker')
+        expect(picker.nextElementSibling).toBe(toolbar.get('.form-image-filters').element)
+        expect(toolbar.find('input[aria-label="搜索形态图片"]').exists()).toBe(true)
+        expect(toolbar.findAll('.filter-toggles [role="checkbox"]')).toHaveLength(2)
+        expect(wrapper!.find('.asset-impact-context').exists()).toBe(false)
         const select = wrapper!
             .findAllComponents(NSelect)
             .find(item => item.attributes('aria-label') === '选择关联镜头')!
         select.vm.$emit('update:value', 'shot-target')
         await flushPromises()
+        expect(wrapper!.get('.asset-impact-context').element.previousElementSibling).toBe(
+            wrapper!.get('.form-image-filter-region').element
+        )
         expect(wrapper!.text()).toContain('待处理首帧关联此素材')
         expect(fetcher.mock.calls.filter(([url]) => String(url).endsWith('/references'))).toHaveLength(1)
     })
diff --git a/src/features/workflows/pages.test.ts b/src/features/workflows/pages.test.ts
index 7806141..a1ca29e 100644
--- a/src/features/workflows/pages.test.ts
+++ b/src/features/workflows/pages.test.ts
@@ -817,6 +817,9 @@ describe('工作台页面交互', () => {
         vi.stubGlobal('fetch', fetcher)
         await mountSubjectImages()
         const filters = wrapper!.get('.form-image-filters')
+        expect(wrapper!.get('.form-image-toolbar').classes()).not.toContain('has-impact-picker')
+        expect(filters.element.parentElement).toBe(wrapper!.get('.form-image-toolbar').element)
+        expect(wrapper!.findAll('.form-image-filters')).toHaveLength(1)
         expect(filters.get('.filter-result-count').text()).toBe('2 个形态')
         expect(filters.find('input[aria-label="搜索形态图片"]').exists()).toBe(true)
         expect(filters.findAll('.filter-toggles [role="checkbox"]')).toHaveLength(2)