diff --git a/src/features/project-assets/AssetLibraryPage.vue b/src/features/project-assets/AssetLibraryPage.vue
index 5778d38..650407a 100644
--- a/src/features/project-assets/AssetLibraryPage.vue
+++ b/src/features/project-assets/AssetLibraryPage.vue
@@ -1,12 +1,13 @@
 <script setup lang="ts">
-import { computed, reactive, ref } from 'vue'
-import { NAlert, NButton, NFormItem, NInput, NPopconfirm, NSelect, NTag, NTooltip } from 'naive-ui'
-import { Pencil, RefreshCw, Search, Trash2, Upload } from '@lucide/vue'
+import { computed, nextTick, reactive, ref } from 'vue'
+import { NAlert, NButton, NFormItem, NImage, NInput, NPopconfirm, NSelect, NTag, NTooltip } from 'naive-ui'
+import { Eye, Info, RefreshCw, Search, Trash2, Upload } from '@lucide/vue'
 import { AppDialog, AssetImage, EmptyState } from '../../components/ui'
 import AppForm from '../../components/ui/AppForm.vue'
 import WorkspacePage from '../../components/ui/WorkspacePage.vue'
 import { useQuery } from '../../composables/useQuery'
 import { fieldRule } from '../../lib/form-rules'
+import { referenceImageUrl } from '../../lib/assets'
 import { errorMessage } from '../../lib/http'
 import { projectsApi } from '../projects/api'
 import { projectAssetsApi } from './api'
@@ -39,6 +40,9 @@ const uploadOpen = ref(false)
 const editOpen = ref(false)
 const selectedFile = ref<File | null>(null)
 const selectedAsset = ref<GlobalProjectAsset | null>(null)
+const previewAsset = ref<GlobalProjectAsset | null>(null)
+const previewImage = ref<{ showPreview: () => void } | null>(null)
+const overflowTitles = reactive(new Set<string>())
 const uploadForm = reactive({ projectId: '', name: '', category: 'reference' })
 const editForm = reactive({ name: '', category: '' })
 const assets = computed(() => query.data.value ?? [])
@@ -167,6 +171,20 @@ function openEdit(asset: GlobalProjectAsset) {
     editOpen.value = true
 }
 
+/** 只在标题真实溢出时启用 Tooltip，短标题不产生多余浮层。 */
+function checkTitleOverflow(assetId: string, event: MouseEvent) {
+    const element = event.currentTarget as HTMLElement
+    if (element.scrollWidth > element.clientWidth) overflowTitles.add(assetId)
+    else overflowTitles.delete(assetId)
+}
+
+/** 预览按钮独立打开 Naive 图片查看器，不触发卡片详情。 */
+async function openPreview(asset: GlobalProjectAsset) {
+    previewAsset.value = asset
+    await nextTick()
+    previewImage.value?.showPreview()
+}
+
 async function updateAsset() {
     const asset = selectedAsset.value
     if (!asset || busy.value) return
@@ -280,25 +298,56 @@ async function removeAsset() {
         </div>
 
         <div v-if="filteredAssets.length" class="asset-library-grid">
-            <article v-for="asset in filteredAssets" :key="asset.id" class="asset-library-card">
-                <AssetImage :src="asset.publicUrl" :alt="asset.name" preview class="asset-library-image" />
-                <div class="asset-library-card-content">
-                    <NTooltip placement="top-start" trigger="hover">
+            <article
+                v-for="asset in filteredAssets"
+                :key="asset.id"
+                class="asset-library-card"
+                role="button"
+                tabindex="0"
+                :aria-label="`查看 ${asset.name} 详情`"
+                @click="openEdit(asset)"
+                @keydown.enter.prevent="openEdit(asset)"
+                @keydown.space.prevent="openEdit(asset)"
+            >
+                <AssetImage :src="asset.publicUrl" :alt="asset.name" class="asset-library-image" />
+                <div class="asset-library-overlay">
+                    <div class="asset-library-actions">
+                        <NButton
+                            quaternary
+                            circle
+                            class="asset-overlay-button"
+                            aria-label="预览图片"
+                            title="预览图片"
+                            @click.stop="openPreview(asset)"
+                        >
+                            <template #icon><Eye :size="16" /></template>
+                        </NButton>
+                        <NButton
+                            quaternary
+                            circle
+                            class="asset-overlay-button"
+                            aria-label="查看素材详情"
+                            title="查看素材详情"
+                            @click.stop="openEdit(asset)"
+                        >
+                            <template #icon><Info :size="16" /></template>
+                        </NButton>
+                    </div>
+                    <NTooltip placement="top-start" trigger="hover" :disabled="!overflowTitles.has(asset.id)">
                         <template #trigger>
-                            <h2 class="asset-library-title">{{ asset.name }}</h2>
+                            <h2 class="asset-library-title" @mouseenter="checkTitleOverflow(asset.id, $event)">
+                                {{ asset.name }}
+                            </h2>
                         </template>
                         {{ asset.name }}
                     </NTooltip>
-                    <div class="mt-2 flex min-w-0 items-center justify-between gap-2">
-                        <p class="truncate text-xs text-muted" :title="projectName(asset.project)">
+                    <div class="asset-library-meta">
+                        <p class="truncate text-xs" :title="projectName(asset.project)">
                             {{ projectName(asset.project) }}
                         </p>
-                        <NTag size="small" :bordered="false">{{ categoryLabel(asset.category) }}</NTag>
-                    </div>
-                    <div class="mt-3 flex justify-end">
-                        <NButton text size="small" type="primary" :disabled="busy" @click="openEdit(asset)">
-                            <template #icon><Pencil :size="14" /></template>管理
-                        </NButton>
+                        <NTag size="small" :bordered="false" class="asset-library-tag">
+                            {{ categoryLabel(asset.category) }}
+                        </NTag>
                     </div>
                 </div>
             </article>
@@ -316,6 +365,16 @@ async function removeAsset() {
         </EmptyState>
         <p v-else class="py-10 text-center text-sm text-muted" role="status">正在读取全部资产图片…</p>
 
+        <NImage
+            v-if="previewAsset"
+            ref="previewImage"
+            class="sr-only"
+            :src="referenceImageUrl(previewAsset.publicUrl) ?? undefined"
+            :preview-src="referenceImageUrl(previewAsset.publicUrl) ?? undefined"
+            :alt="previewAsset.name"
+            :previewed-img-props="{ alt: previewAsset.name, referrerpolicy: 'no-referrer' }"
+        />
+
         <AppDialog
             v-model:open="uploadOpen"
             title="上传资产图片"
@@ -344,27 +403,41 @@ async function removeAsset() {
             title="素材详情与管理"
             description="查看文件详情，也可在当前页面修改名称和分类或删除素材。"
             :busy="busy"
+            wide
         >
             <NAlert v-if="actionError" type="error" :show-icon="false" class="mt-5">{{ actionError }}</NAlert>
             <AppForm :model="editForm" :rules="formRules" :disabled="busy" class="mt-5" @submit="updateAsset">
-                <NFormItem label="所属剧本">
-                    <NInput :value="selectedAsset ? projectName(selectedAsset.project) : ''" disabled />
-                </NFormItem>
-                <NFormItem path="name" label="素材名称"><NInput v-model:value="editForm.name" /></NFormItem>
-                <NFormItem path="category" label="分类标识"><NInput v-model:value="editForm.category" /></NFormItem>
-                <dl v-if="selectedAsset" class="asset-detail-grid">
-                    <dt>原始文件名</dt>
-                    <dd>{{ metadataOriginalName(selectedAsset.metadata) }}</dd>
-                    <dt>文件类型</dt>
-                    <dd>{{ selectedAsset.mimeType }} · {{ selectedAsset.extension.toUpperCase() }}</dd>
-                    <dt>文件大小</dt>
-                    <dd>{{ formatBytes(selectedAsset.size) }}</dd>
-                    <dt>创建时间</dt>
-                    <dd>{{ formatDate(selectedAsset.createdAt) }}</dd>
-                    <dt>更新时间</dt>
-                    <dd>{{ formatDate(selectedAsset.updatedAt) }}</dd>
-                </dl>
-                <div class="mt-4 flex items-center justify-between gap-3">
+                <div v-if="selectedAsset" class="asset-management-layout">
+                    <AssetImage
+                        :src="selectedAsset.publicUrl"
+                        :alt="selectedAsset.name"
+                        preview
+                        object-fit="contain"
+                        class="asset-management-preview"
+                    />
+                    <div class="asset-management-fields">
+                        <NFormItem label="所属剧本">
+                            <NInput :value="projectName(selectedAsset.project)" disabled />
+                        </NFormItem>
+                        <NFormItem path="name" label="素材名称"><NInput v-model:value="editForm.name" /></NFormItem>
+                        <NFormItem path="category" label="分类标识">
+                            <NInput v-model:value="editForm.category" />
+                        </NFormItem>
+                        <dl class="asset-detail-grid">
+                            <dt>原始文件名</dt>
+                            <dd>{{ metadataOriginalName(selectedAsset.metadata) }}</dd>
+                            <dt>文件类型</dt>
+                            <dd>{{ selectedAsset.mimeType }} · {{ selectedAsset.extension.toUpperCase() }}</dd>
+                            <dt>文件大小</dt>
+                            <dd>{{ formatBytes(selectedAsset.size) }}</dd>
+                            <dt>创建时间</dt>
+                            <dd>{{ formatDate(selectedAsset.createdAt) }}</dd>
+                            <dt>更新时间</dt>
+                            <dd>{{ formatDate(selectedAsset.updatedAt) }}</dd>
+                        </dl>
+                    </div>
+                </div>
+                <div class="asset-management-footer">
                     <NPopconfirm
                         :positive-button-props="{ disabled: busy }"
                         positive-text="确认删除"
@@ -404,26 +477,57 @@ async function removeAsset() {
     column-gap: 16px;
 }
 .asset-library-card {
-    @apply inline-block w-full min-w-0 overflow-hidden bg-(--app-surface) align-top;
+    @apply relative inline-block w-full min-w-0 overflow-hidden bg-(--app-surface) align-top cursor-pointer outline-none;
     break-inside: avoid;
     margin-bottom: 16px;
 }
+.asset-library-card:focus-visible {
+    box-shadow: inset 0 0 0 2px var(--color-accent);
+}
 .asset-library-image {
     @apply block aspect-auto;
 }
 .asset-library-image :deep(.reveal-image),
 .asset-library-image :deep(.n-image),
 .asset-library-image :deep(.n-image img) {
-    @apply h-auto;
+    @apply h-auto min-h-[160px];
 }
-.asset-library-card-content {
-    @apply p-4;
+.asset-library-overlay {
+    @apply absolute inset-0 flex flex-col justify-end p-[10px] text-white;
+    background: linear-gradient(to top, rgb(0 0 0 / 0.84) 0, rgb(0 0 0 / 0.35) 42%, transparent 70%);
+}
+.asset-library-actions {
+    @apply flex self-end items-center gap-1 mb-[10px];
+}
+.asset-overlay-button {
+    @apply text-white bg-black/35 backdrop-blur-sm;
+}
+.asset-overlay-button:hover {
+    @apply text-white bg-black/60;
 }
 .asset-library-title {
     @apply block w-full truncate text-sm font-semibold;
 }
+.asset-library-meta {
+    @apply flex min-w-0 items-center justify-between gap-2 mt-1.5;
+}
+.asset-library-meta p {
+    color: rgb(255 255 255 / 0.76);
+}
+.asset-library-tag {
+    @apply shrink-0 text-white bg-white/15 backdrop-blur-sm;
+}
+.asset-management-layout {
+    @apply grid grid-cols-[minmax(280px,_0.9fr)_minmax(0,_1.1fr)] items-start gap-5;
+}
+.asset-management-preview {
+    @apply h-[min(56dvh,_560px)] min-h-[280px] aspect-auto bg-(--app-subtle);
+}
+.asset-management-fields {
+    @apply min-w-0;
+}
 .asset-detail-grid {
-    @apply grid grid-cols-[96px_minmax(0,_1fr)] gap-x-4 gap-y-2 mt-2 p-3 bg-(--app-subtle) text-xs;
+    @apply grid grid-cols-[88px_minmax(0,_1fr)] gap-x-4 gap-y-2 mt-1 p-3 bg-(--app-subtle) text-xs;
 }
 .asset-detail-grid dt {
     @apply text-muted;
@@ -431,10 +535,19 @@ async function removeAsset() {
 .asset-detail-grid dd {
     @apply min-w-0 break-all text-ink;
 }
+.asset-management-footer {
+    @apply flex items-center justify-between gap-3 mt-5 pt-4 border-t border-(--app-border);
+}
 @container asset-library (max-width: 840px) {
     .asset-library-filters {
         @apply grid-cols-2;
     }
+    .asset-management-layout {
+        @apply grid-cols-1;
+    }
+    .asset-management-preview {
+        @apply h-[min(42dvh,_420px)] min-h-[220px];
+    }
 }
 @container asset-library (max-width: 560px) {
     .asset-library-heading {
diff --git a/tests/features/project-assets/library.test.ts b/tests/features/project-assets/library.test.ts
index 2be809a..e816bfa 100644
--- a/tests/features/project-assets/library.test.ts
+++ b/tests/features/project-assets/library.test.ts
@@ -75,14 +75,24 @@ describe('全局资产库', () => {
         expect(wrapper.text()).toContain('林默正面照')
         expect(wrapper.text()).toContain('记忆当铺')
         expect(wrapper.findAllComponents(NTooltip)).toHaveLength(2)
-        expect(wrapper.get('.asset-library-title').classes()).toContain('asset-library-title')
+        const title = wrapper.get('.asset-library-title')
+        expect(title.classes()).toContain('asset-library-title')
+        expect(wrapper.findComponent(NTooltip).props('disabled')).toBe(true)
+        Object.defineProperties(title.element, {
+            scrollWidth: { configurable: true, value: 240 },
+            clientWidth: { configurable: true, value: 120 }
+        })
+        await title.trigger('mouseenter')
+        expect(wrapper.findComponent(NTooltip).props('disabled')).toBe(false)
         expect(wrapper.get('.asset-library-card').text()).not.toContain('rain-street-original.png')
         expect(wrapper.get('.asset-library-card').text()).not.toContain('4.0 KB')
 
-        await wrapper
-            .findAll('button')
-            .find(button => button.text() === '管理')!
-            .trigger('click')
+        await wrapper.get('[aria-label="预览图片"]').trigger('click')
+        await flushPromises()
+        expect(document.querySelector('[role="dialog"][aria-label="素材详情与管理"]')).toBeNull()
+        expect(document.querySelector('.n-image-preview-container')).not.toBeNull()
+
+        await wrapper.get('[aria-label="查看素材详情"]').trigger('click')
         await flushPromises()
         const dialog = document.querySelector('[role="dialog"][aria-label="素材详情与管理"]')!
         expect(dialog).not.toBeNull()