优化页面、修复BUG

client/src/App.vue

@@ -75,6 +75,7 @@ const isFullWidthPage = computed(() => {
   return path.startsWith('/admin') || path === '/login'
     || path.startsWith('/blog/')
     || path.startsWith('/works/')
+    || path.startsWith('/columns')
 })
 
 // 应用网站配置到页面标题和meta标签

client/src/pages/VideoDetail.vue

@@ -18,24 +18,68 @@
       <template v-else-if="video">
         <h1 class="font-serif text-3xl md:text-4xl text-white mb-6">{{ video.title }}</h1>
 
-        <!-- 有视频地址时挂载 DPlayer 容器 -->
         <div
           v-if="video.videoUrl"
           ref="playerRef"
-          class="w-full aspect-video rounded-xl overflow-hidden bg-black mb-8"
+          class="w-full aspect-video rounded-xl overflow-hidden bg-black mb-6"
         ></div>
-        <!-- 无视频地址时的占位提示 -->
         <div
           v-else
-          class="w-full aspect-video rounded-xl overflow-hidden bg-black/40 border border-white/10 flex items-center justify-center mb-8"
+          class="w-full aspect-video rounded-xl overflow-hidden bg-black/40 border border-white/10 flex items-center justify-center mb-6"
         >
           <p class="text-art-muted text-sm">暂无视频地址</p>
         </div>
 
+        <!-- 专辑内前后导航：前 2 + 后 2 -->
+        <div v-if="video.albumContext" class="mb-8">
+          <div class="flex items-center justify-between mb-4">
+            <p class="text-sm text-art-muted">
+              来自专辑 <span class="text-white">{{ video.albumContext.albumName }}</span>
+            </p>
+            <router-link
+              :to="`/videos/albums/${video.albumContext.albumId}`"
+              class="text-xs text-art-accent hover:underline"
+            >返回专辑</router-link>
+          </div>
+          <div class="flex gap-3 overflow-x-auto pb-2">
+            <!-- 前序视频 -->
+            <div
+              v-for="pv in video.albumContext.prevVideos"
+              :key="'prev-' + pv.id"
+              class="shrink-0 w-36 cursor-pointer group"
+              @click="router.push(`/videos/${pv.id}`)"
+            >
+              <div class="aspect-video rounded-lg overflow-hidden border border-white/10 group-hover:border-art-accent/50 transition-colors bg-black/40">
+                <img v-if="pv.cover" :src="pv.cover" class="w-full h-full object-cover opacity-80 group-hover:opacity-100" alt="" />
+              </div>
+              <p class="text-xs text-art-muted mt-1 line-clamp-2 group-hover:text-white">{{ pv.title }}</p>
+            </div>
+            <!-- 当前视频高亮 -->
+            <div class="shrink-0 w-36">
+              <div class="aspect-video rounded-lg overflow-hidden border-2 border-art-accent bg-black/40">
+                <img v-if="video.cover" :src="video.cover" class="w-full h-full object-cover" alt="" />
+              </div>
+              <p class="text-xs text-art-accent mt-1 line-clamp-2 font-medium">正在播放</p>
+            </div>
+            <!-- 后续视频 -->
+            <div
+              v-for="nv in video.albumContext.nextVideos"
+              :key="'next-' + nv.id"
+              class="shrink-0 w-36 cursor-pointer group"
+              @click="router.push(`/videos/${nv.id}`)"
+            >
+              <div class="aspect-video rounded-lg overflow-hidden border border-white/10 group-hover:border-art-accent/50 transition-colors bg-black/40">
+                <img v-if="nv.cover" :src="nv.cover" class="w-full h-full object-cover opacity-80 group-hover:opacity-100" alt="" />
+              </div>
+              <p class="text-xs text-art-muted mt-1 line-clamp-2 group-hover:text-white">{{ nv.title }}</p>
+            </div>
+          </div>
+        </div>
+
         <div class="max-w-3xl">
           <div class="flex gap-4 text-sm text-art-muted mb-4">
             <span v-if="video.categoryName">{{ video.categoryName }}</span>
-            <span>{{ video.createdAt }}</span>
+            <span v-if="video.createdAt">发布于 {{ video.createdAt }}</span>
           </div>
           <p v-if="video.description" class="text-white/80 leading-relaxed whitespace-pre-wrap">{{ video.description }}</p>
         </div>
@@ -46,25 +90,26 @@
 
 <script setup lang="ts">
 import { ref, onMounted, onBeforeUnmount, watch, nextTick } from 'vue'
-import { useRoute } from 'vue-router'
+import { useRoute, useRouter } from 'vue-router'
 import DPlayer from 'dplayer'
 import 'dplayer/dist/DPlayer.min.css'
-import { fetchVideo, type VideoItem } from '../services/api'
+import { fetchVideo, type VideoDetailItem } from '../services/api'
 import Icon from '../components/Icon.vue'
 
 const route = useRoute()
+const router = useRouter()
 const loading = ref(true)
 const error = ref('')
-const video = ref<VideoItem | null>(null)
+const video = ref<VideoDetailItem | null>(null)
 const playerRef = ref<HTMLElement | null>(null)
 let dp: DPlayer | null = null
 
-/** 销毁 DPlayer 实例，避免内存泄漏 */
+/** 销毁 DPlayer 实例 */
 const destroyPlayer = () => {
   if (dp) { dp.destroy(); dp = null }
 }
 
-/** 在容器与视频 URL 就绪后创建 DPlayer */
+/** 创建 DPlayer 播放器 */
 const initPlayer = async () => {
   destroyPlayer()
   if (!playerRef.value || !video.value?.videoUrl) return
@@ -77,7 +122,7 @@ const initPlayer = async () => {
   })
 }
 
-/** 加载视频详情数据 */
+/** 加载视频详情 */
 const load = async () => {
   loading.value = true
   error.value = ''
@@ -92,7 +137,6 @@ const load = async () => {
   }
 }
 
-// 监听 video、容器 DOM、loading 状态，在 DOM 挂载后再初始化播放器
 watch([video, playerRef, loading], async ([v, el, isLoading]) => {
   if (isLoading || !v?.videoUrl || !el) return
   await nextTick()

client/src/pages/Videos.vue

@@ -6,13 +6,13 @@
         <p class="text-art-muted">精选视频内容与系列专辑。</p>
       </div>
 
-      <!-- 分类 Tab -->
+      <!-- 分类 Tab 快捷筛选 -->
-      <div class="flex flex-wrap gap-2 mb-10">
+      <div class="flex flex-wrap gap-2 mb-8">
         <button
           type="button"
           class="px-4 py-1.5 rounded-full text-sm border transition-colors"
           :class="activeCategory === 0 ? 'border-art-accent text-art-accent bg-art-accent/10' : 'border-white/10 text-art-muted hover:text-white'"
-          @click="activeCategory = 0; loadData()"
+          @click="selectCategory(0)"
         >全部</button>
         <button
           v-for="cat in categories"
@@ -20,19 +20,42 @@
           type="button"
           class="px-4 py-1.5 rounded-full text-sm border transition-colors"
           :class="activeCategory === cat.id ? 'border-art-accent text-art-accent bg-art-accent/10' : 'border-white/10 text-art-muted hover:text-white'"
-          @click="activeCategory = cat.id; loadData()"
+          @click="selectCategory(cat.id)"
         >{{ cat.name }}</button>
       </div>
 
+      <!-- 分类概览卡片 -->
+      <div v-if="categories.length" class="mb-14">
+        <h3 class="font-mono text-xs text-art-muted uppercase tracking-widest mb-6">分类</h3>
+        <div class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-4">
+          <div
+            v-for="cat in categories"
+            :key="'card-' + cat.id"
+            class="group p-5 rounded-xl border cursor-pointer transition-colors"
+            :class="activeCategory === cat.id ? 'border-art-accent/50 bg-art-accent/5' : 'border-white/10 hover:border-art-accent/30 hover:bg-white/5'"
+            @click="selectCategory(cat.id)"
+          >
+            <h4 class="text-white font-medium group-hover:text-art-accent transition-colors">{{ cat.name }}</h4>
+            <p v-if="cat.description" class="text-xs text-art-muted mt-2 line-clamp-2">{{ cat.description }}</p>
+            <div class="flex gap-4 mt-3 text-xs text-art-muted">
+              <span>{{ cat.videoCount ?? 0 }} 个视频</span>
+              <span>{{ cat.albumCount ?? 0 }} 个专辑</span>
+            </div>
+          </div>
+        </div>
+      </div>
+      <div v-else-if="!loading && !error" class="mb-10 text-center text-art-muted text-sm py-6 border border-dashed border-white/10 rounded-xl">
+        暂无视频分类，请先在后台创建分类
+      </div>
+
       <div v-if="loading" class="flex justify-center py-20"><div class="animate-spin h-10 w-10 border-t-2 border-art-accent rounded-full"></div></div>
 
-      <!-- API 加载失败 -->
       <div v-else-if="error" class="text-center py-12">
         <p class="text-red-400 mb-4">{{ error }}</p>
         <button
           type="button"
           class="px-4 py-2 border border-white/20 rounded-full text-sm text-white hover:border-art-accent hover:text-art-accent transition-colors"
-          @click="loadData"
+          @click="loadAll"
         >重试</button>
       </div>
 
@@ -44,19 +67,45 @@
             <div
               v-for="album in albums"
               :key="album.id"
-              class="group cursor-pointer rounded-xl overflow-hidden border border-white/10 hover:border-art-accent/40 transition-colors"
+              class="group rounded-xl overflow-hidden border border-white/10 hover:border-art-accent/40 transition-colors"
-              @click="router.push(`/videos/albums/${album.id}`)"
             >
-              <div class="aspect-video bg-gray-900 overflow-hidden">
+              <div
+                class="aspect-video bg-gray-900 overflow-hidden cursor-pointer"
+                @click="router.push(`/videos/albums/${album.id}`)"
+              >
                 <img v-if="album.cover" :src="album.cover" class="w-full h-full object-cover group-hover:scale-105 transition-transform duration-500" alt="" />
               </div>
-              <div class="p-4">
+              <!-- 专辑预览视频缩略图 -->
+              <div
+                v-if="album.previewVideos?.length"
+                class="flex gap-1 px-2 py-2 bg-black/30 border-t border-white/5 overflow-x-auto"
+              >
+                <div
+                  v-for="pv in album.previewVideos"
+                  :key="pv.id"
+                  class="shrink-0 w-16 h-10 rounded overflow-hidden cursor-pointer border border-transparent hover:border-art-accent/50"
+                  @click.stop="router.push(`/videos/${pv.id}`)"
+                >
+                  <img v-if="pv.cover" :src="pv.cover" class="w-full h-full object-cover" alt="" />
+                  <div v-else class="w-full h-full bg-white/5 flex items-center justify-center">
+                    <Icon name="play" :size="12" class="text-white/50" />
+                  </div>
+                </div>
+              </div>
+              <div class="p-4 cursor-pointer" @click="router.push(`/videos/albums/${album.id}`)">
                 <h4 class="text-white font-medium group-hover:text-art-accent transition-colors">{{ album.name }}</h4>
-                <p class="text-xs text-art-muted mt-1">{{ album.videoCount ?? 0 }} 个视频</p>
+                <p class="text-xs text-art-muted mt-1">
+                  {{ album.videoCount ?? 0 }} 个视频
+                  <span v-if="album.latestVideoUpdatedAt" class="ml-2">· 更新于 {{ album.latestVideoUpdatedAt }}</span>
+                </p>
+                <p v-if="album.categoryName" class="text-xs text-art-muted/70 mt-1">{{ album.categoryName }}</p>
               </div>
             </div>
           </div>
         </div>
+        <div v-else class="mb-10 text-center text-art-muted text-sm py-8 border border-dashed border-white/10 rounded-xl">
+          暂无专辑
+        </div>
 
         <!-- 最新视频 -->
         <div>
@@ -78,7 +127,10 @@
               </div>
               <div class="p-4">
                 <h4 class="text-white font-medium line-clamp-2">{{ video.title }}</h4>
-                <p class="text-xs text-art-muted mt-1">{{ video.categoryName || '未分类' }}</p>
+                <p class="text-xs text-art-muted mt-1">
+                  {{ video.categoryName || '未分类' }}
+                  <span v-if="video.createdAt" class="ml-2">· 发布于 {{ video.createdAt }}</span>
+                </p>
               </div>
             </div>
           </div>
@@ -104,12 +156,15 @@ const albums = ref<VideoAlbum[]>([])
 const videos = ref<VideoItem[]>([])
 const activeCategory = ref(0)
 
-// 滚动入场动画：animate-slide-down 初始 opacity:0，需 initObserver 添加 .visible
 const { initObserver } = useScrollAnimation()
 
-/**
+/** 切换分类并重新加载数据 */
- * 加载视频分类下的专辑与视频列表
+const selectCategory = (catId: number) => {
- */
+  activeCategory.value = catId
+  loadData()
+}
+
+/** 加载专辑与视频列表 */
 const loadData = async () => {
   loading.value = true
   error.value = ''
@@ -122,17 +177,21 @@ const loadData = async () => {
     console.error('加载视频列表失败:', err)
   } finally {
     loading.value = false
-    // 数据渲染后触发 IntersectionObserver，使页面从透明变为可见
     await initObserver()
   }
 }
 
-onMounted(async () => {
+/** 加载分类并刷新列表 */
+const loadAll = async () => {
   try {
     categories.value = await fetchVideoCategories()
   } catch (err) {
+    error.value = '加载分类失败，请稍后重试'
     console.error('加载视频分类失败:', err)
+    return
   }
   await loadData()
-})
+}
+
+onMounted(loadAll)
 </script>

client/src/pages/admin/VideoAlbums.vue

@@ -7,7 +7,7 @@
     <div class="admin-card overflow-hidden">
       <table class="admin-table">
         <thead>
-          <tr><th>ID</th><th>名称</th><th>分类</th><th>视频数</th><th>状态</th><th class="text-right">操作</th></tr>
+          <tr><th>ID</th><th>名称</th><th>分类</th><th>视频数</th><th>最新视频更新</th><th>状态</th><th class="text-right">操作</th></tr>
         </thead>
         <tbody>
           <tr v-for="item in list" :key="item.id">
@@ -15,6 +15,7 @@
             <td class="text-white">{{ item.name }}</td>
             <td class="text-art-muted">{{ item.categoryName || '-' }}</td>
             <td class="text-art-muted">{{ item.videoCount ?? 0 }}</td>
+            <td class="text-xs text-art-muted">{{ item.latestVideoUpdatedAt || '-' }}</td>
             <td><span :class="item.isActive ? 'text-green-400' : 'text-red-400'">{{ item.isActive ? '启用' : '禁用' }}</span></td>
             <td class="text-right">
               <router-link :to="`/admin/video-albums/${item.id}/edit`" class="admin-btn-secondary py-1 px-3 text-xs mr-2">编辑</router-link>

client/src/pages/admin/VideoForm.vue

@@ -1,12 +1,14 @@
 <template>
   <div class="w-full animate-reveal">
-    <div class="flex items-center justify-between mb-4">
+    <!-- 悬浮顶栏：滚动时取消/保存始终可见 -->
+    <div class="sticky top-0 z-20 -mx-6 px-6 py-4 mb-4 bg-art-admin-bg/95 backdrop-blur-md border-b border-white/5 flex items-center justify-between">
       <h1 class="text-2xl font-serif italic text-white">{{ isEditing ? '编辑视频' : '新建视频' }}</h1>
       <div class="flex gap-3">
         <button type="button" class="admin-btn-secondary" @click="router.push('/admin/videos')">取消</button>
         <button type="button" class="admin-btn-primary" :disabled="submitting" @click="handleSubmit">{{ submitting ? '提交中...' : '保存' }}</button>
       </div>
     </div>
+
     <div class="admin-card p-6 max-w-3xl space-y-5">
       <div><label class="block text-xs text-art-muted mb-1">标题</label><input v-model="form.title" class="admin-input" required /></div>
       <div><label class="block text-xs text-art-muted mb-1">分类</label>
@@ -15,6 +17,18 @@
           <option v-for="c in categories" :key="c.id" :value="c.id">{{ c.name }}</option>
         </select>
       </div>
+      <!-- 所属专辑多选 -->
+      <div>
+        <label class="block text-xs text-art-muted mb-2">所属专辑（可多选）</label>
+        <div v-if="albums.length" class="max-h-48 overflow-y-auto space-y-2 border border-white/10 rounded-lg p-3">
+          <label v-for="a in albums" :key="a.id" class="flex items-center gap-3 p-2 rounded hover:bg-white/5 cursor-pointer">
+            <input type="checkbox" :value="a.id" v-model="selectedAlbumIds" />
+            <span class="text-sm text-white">{{ a.name }}</span>
+            <span v-if="a.categoryName" class="text-xs text-art-muted">({{ a.categoryName }})</span>
+          </label>
+        </div>
+        <p v-else class="text-xs text-art-muted">暂无专辑，请先在「视频专辑」中创建</p>
+      </div>
       <div><label class="block text-xs text-art-muted mb-1">视频文件</label><VideoUpload v-model="form.videoUrl" :category-id="1" /></div>
       <div><label class="block text-xs text-art-muted mb-1">封面图</label><ImageUpload v-model="form.cover" :category-id="1" /></div>
       <div><label class="block text-xs text-art-muted mb-1">描述</label><textarea v-model="form.description" rows="4" class="admin-input resize-none" /></div>
@@ -28,7 +42,7 @@
 <script setup lang="ts">
 import { reactive, ref, computed, onMounted } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
-import { getAdminVideoCategories, getAdminVideo, createVideo, updateVideo } from '../../services/api'
+import { getAdminVideoCategories, getAdminVideoAlbums, getAdminVideo, createVideo, updateVideo, type VideoAlbum } from '../../services/api'
 import { useToast } from '../../composables/useToast'
 import ImageUpload from '../../components/admin/ImageUpload.vue'
 import VideoUpload from '../../components/admin/VideoUpload.vue'
@@ -39,26 +53,40 @@ const toast = useToast()
 const submitting = ref(false)
 const isEditing = computed(() => !!route.params.id)
 const categories = ref<{ id: number; name: string }[]>([])
+const albums = ref<VideoAlbum[]>([])
+const selectedAlbumIds = ref<number[]>([])
 const form = reactive({ title: '', description: '', videoUrl: '', cover: '', poster: '', categoryId: 0, isPublished: 1 })
 
 onMounted(async () => {
   categories.value = await getAdminVideoCategories()
+  albums.value = await getAdminVideoAlbums()
   if (isEditing.value) {
     const item = await getAdminVideo(route.params.id as string)
-    Object.assign(form, { title: item.title, description: item.description, videoUrl: item.videoUrl, cover: item.cover, poster: item.poster, categoryId: item.categoryId, isPublished: item.isPublished })
+    Object.assign(form, {
+      title: item.title,
+      description: item.description,
+      videoUrl: item.videoUrl,
+      cover: item.cover,
+      poster: item.poster,
+      categoryId: item.categoryId,
+      isPublished: item.isPublished,
+    })
+    selectedAlbumIds.value = item.albumIds ?? []
   }
 })
 
+/** 提交视频表单，同步专辑关联 */
 const handleSubmit = async () => {
   if (!form.videoUrl) { toast.error('请上传视频'); return }
   submitting.value = true
   try {
     form.poster = form.cover || form.poster
+    const payload = { ...form, albumIds: selectedAlbumIds.value }
     if (isEditing.value) {
-      await updateVideo(route.params.id as string, form)
+      await updateVideo(route.params.id as string, payload)
       toast.success('更新成功')
     } else {
-      await createVideo(form)
+      await createVideo(payload)
       toast.success('创建成功')
     }
     router.push('/admin/videos')

client/src/pages/admin/Videos.vue

@@ -7,7 +7,7 @@
     <div class="admin-card overflow-hidden">
       <table class="admin-table">
         <thead>
-          <tr><th>标题</th><th>分类</th><th>状态</th><th>创建时间</th><th class="text-right">操作</th></tr>
+          <tr><th>标题</th><th>分类</th><th>状态</th><th>发布时间</th><th class="text-right">操作</th></tr>
         </thead>
         <tbody>
           <tr v-for="item in list" :key="item.id">

client/src/services/api.ts

@@ -171,6 +171,8 @@ export interface VideoAlbum {
   createdAt: string
   updatedAt: string
   videoCount?: number
+  latestVideoUpdatedAt?: string
+  previewVideos?: VideoItem[]
 }
 
 export interface VideoItem {
@@ -188,6 +190,24 @@ export interface VideoItem {
   updatedAt: string
 }
 
+/** 专辑内前后导航上下文 */
+export interface VideoAlbumNavContext {
+  albumId: number
+  albumName: string
+  prevVideos: VideoItem[]
+  nextVideos: VideoItem[]
+}
+
+/** 视频详情（含专辑导航） */
+export interface VideoDetailItem extends VideoItem {
+  albumContext?: VideoAlbumNavContext
+}
+
+/** 管理端视频（含所属专辑） */
+export interface AdminVideoItem extends VideoItem {
+  albumIds?: number[]
+}
+
 // 分类相关类型
 export interface Category {
   id: number
@@ -2140,8 +2160,8 @@ export const fetchVideos = async (categoryId?: number): Promise<VideoItem[]> =>
   return Array.isArray(result) ? result : []
 }
 
-export const fetchVideo = async (id: string): Promise<VideoItem> => {
+export const fetchVideo = async (id: string): Promise<VideoDetailItem> => {
-  const result = await fetchJson<VideoItem>(`${API_BASE}/videos/${id}`)
+  const result = await fetchJson<VideoDetailItem>(`${API_BASE}/videos/${id}`)
   if (!result) throw new Error('Video not found')
   return result
 }
@@ -2205,30 +2225,30 @@ export const getAlbumVideoIds = async (albumId: number): Promise<string[]> => {
   return Array.isArray(result) ? result : []
 }
 
-export const getAdminVideos = async (categoryId?: number): Promise<VideoItem[]> => {
+export const getAdminVideos = async (categoryId?: number): Promise<AdminVideoItem[]> => {
   const q = categoryId ? `?categoryId=${categoryId}` : ''
   const response = await authFetch(`${API_BASE}/admin/videos${q}`, { headers: getAuthHeaders() })
-  const result = await parseApiResponse<VideoItem[]>(response)
+  const result = await parseApiResponse<AdminVideoItem[]>(response)
   return Array.isArray(result) ? result : []
 }
 
-export const getAdminVideo = async (id: string): Promise<VideoItem> => {
+export const getAdminVideo = async (id: string): Promise<AdminVideoItem> => {
   const response = await authFetch(`${API_BASE}/admin/videos/${id}`, { headers: getAuthHeaders() })
-  return await parseApiResponse<VideoItem>(response)
+  return await parseApiResponse<AdminVideoItem>(response)
 }
 
-export const createVideo = async (data: Partial<VideoItem>): Promise<VideoItem> => {
+export const createVideo = async (data: Partial<VideoItem> & { albumIds?: number[] }): Promise<AdminVideoItem> => {
   const response = await authFetch(`${API_BASE}/admin/videos`, {
     method: 'POST', headers: getAuthHeaders(), body: JSON.stringify(data),
   })
-  return await parseApiResponse<VideoItem>(response)
+  return await parseApiResponse<AdminVideoItem>(response)
 }
 
-export const updateVideo = async (id: string, data: Partial<VideoItem>): Promise<VideoItem> => {
+export const updateVideo = async (id: string, data: Partial<VideoItem> & { albumIds?: number[] }): Promise<AdminVideoItem> => {
   const response = await authFetch(`${API_BASE}/admin/videos/${id}`, {
     method: 'PUT', headers: getAuthHeaders(), body: JSON.stringify(data),
   })
-  return await parseApiResponse<VideoItem>(response)
+  return await parseApiResponse<AdminVideoItem>(response)
 }
 
 export const deleteVideo = async (id: string): Promise<void> => {

server/handlers/video.go

@@ -30,7 +30,7 @@ func GetVideoAlbums(c *gin.Context) {
 		utils.ServerError(c, err)
 		return
 	}
-	utils.Success(c, repositories.BuildVideoAlbumsResponse(list))
+	utils.Success(c, repositories.BuildVideoAlbumsResponse(list, true))
 }
 
 // GetVideoAlbumByID 获取专辑详情
@@ -49,7 +49,7 @@ func GetVideoAlbumByID(c *gin.Context) {
 		utils.Error(c, 404, "Album not found")
 		return
 	}
-	utils.Success(c, repositories.BuildVideoAlbumResponse(album))
+	utils.Success(c, repositories.BuildVideoAlbumResponse(album, true))
 }
 
 // GetAlbumVideos 获取专辑内视频
@@ -90,7 +90,7 @@ func GetVideoByID(c *gin.Context) {
 		utils.Error(c, 404, "Video not found")
 		return
 	}
-	utils.Success(c, repositories.BuildVideoResponse(video))
+	utils.Success(c, repositories.BuildVideoDetailResponse(video))
 }
 
 // ========== 管理 API — 分类 ==========
@@ -158,7 +158,7 @@ func AdminGetVideoAlbums(c *gin.Context) {
 		utils.ServerError(c, err)
 		return
 	}
-	utils.Success(c, repositories.BuildVideoAlbumsResponse(list))
+	utils.Success(c, repositories.BuildVideoAlbumsResponse(list, false))
 }
 
 func AdminCreateVideoAlbum(c *gin.Context) {
@@ -171,7 +171,7 @@ func AdminCreateVideoAlbum(c *gin.Context) {
 		utils.ServerError(c, err)
 		return
 	}
-	utils.Success(c, repositories.BuildVideoAlbumResponse(&item))
+	utils.Success(c, repositories.BuildVideoAlbumResponse(&item, false))
 }
 
 func AdminUpdateVideoAlbum(c *gin.Context) {
@@ -199,7 +199,7 @@ func AdminUpdateVideoAlbum(c *gin.Context) {
 			return
 		}
 	}
-	utils.Success(c, repositories.BuildVideoAlbumResponse(&req.VideoAlbum))
+	utils.Success(c, repositories.BuildVideoAlbumResponse(&req.VideoAlbum, false))
 }
 
 func AdminDeleteVideoAlbum(c *gin.Context) {
@@ -277,38 +277,61 @@ func AdminGetVideos(c *gin.Context) {
 		utils.ServerError(c, err)
 		return
 	}
-	utils.Success(c, repositories.BuildVideosResponse(list))
+	utils.Success(c, repositories.BuildAdminVideosResponse(list))
 }
 
 func AdminCreateVideo(c *gin.Context) {
-	var item models.Video
+	var req struct {
-	if err := c.ShouldBindJSON(&item); err != nil {
+		models.Video
+		AlbumIDs []uint `json:"albumIds"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
 		utils.Error(c, 400, err.Error())
 		return
 	}
-	if item.ID == "" {
+	if req.Video.ID == "" {
-		item.ID = "video_" + strconv.FormatInt(time.Now().UnixNano(), 10)
+		req.Video.ID = "video_" + strconv.FormatInt(time.Now().UnixNano(), 10)
 	}
-	if err := repositories.CreateVideo(&item); err != nil {
+	if err := repositories.CreateVideo(&req.Video); err != nil {
 		utils.ServerError(c, err)
 		return
 	}
-	utils.Success(c, repositories.BuildVideoResponse(&item))
+	if req.AlbumIDs != nil {
+		if err := repositories.SyncVideoAlbums(req.Video.ID, req.AlbumIDs); err != nil {
+			utils.ServerError(c, err)
+			return
+		}
+	}
+	utils.Success(c, repositories.BuildAdminVideoResponse(&req.Video))
 }
 
 func AdminUpdateVideo(c *gin.Context) {
 	id := c.Param("id")
-	var item models.Video
+	var req struct {
-	if err := c.ShouldBindJSON(&item); err != nil {
+		models.Video
+		AlbumIDs []uint `json:"albumIds"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
 		utils.Error(c, 400, err.Error())
 		return
 	}
-	item.ID = id
+	req.Video.ID = id
-	if err := repositories.UpdateVideo(&item); err != nil {
+	if err := repositories.UpdateVideo(&req.Video); err != nil {
 		utils.ServerError(c, err)
 		return
 	}
-	utils.Success(c, repositories.BuildVideoResponse(&item))
+	if req.AlbumIDs != nil {
+		if err := repositories.SyncVideoAlbums(id, req.AlbumIDs); err != nil {
+			utils.ServerError(c, err)
+			return
+		}
+	}
+	video, _ := repositories.GetVideoByID(id)
+	if video == nil {
+		utils.Error(c, 404, "Video not found")
+		return
+	}
+	utils.Success(c, repositories.BuildAdminVideoResponse(video))
 }
 
 func AdminDeleteVideo(c *gin.Context) {
@@ -331,5 +354,5 @@ func AdminGetVideoByID(c *gin.Context) {
 		utils.Error(c, 404, "Video not found")
 		return
 	}
-	utils.Success(c, repositories.BuildVideoResponse(video))
+	utils.Success(c, repositories.BuildAdminVideoResponse(video))
 }

server/models/video.go

@@ -83,17 +83,39 @@ func (va *VideoAlbum) BeforeUpdate(tx *gorm.DB) error {
 
 // VideoAlbumResponse 视频专辑 API 响应
 type VideoAlbumResponse struct {
-	ID           uint   `json:"id"`
+	ID                   uint            `json:"id"`
-	Name         string `json:"name"`
+	Name                 string          `json:"name"`
-	Description  string `json:"description"`
+	Description          string          `json:"description"`
-	Cover        string `json:"cover"`
+	Cover                string          `json:"cover"`
-	CategoryID   uint   `json:"categoryId"`
+	CategoryID           uint            `json:"categoryId"`
-	CategoryName string `json:"categoryName,omitempty"`
+	CategoryName         string          `json:"categoryName,omitempty"`
-	IsActive     int    `json:"isActive"`
+	IsActive             int             `json:"isActive"`
-	SortOrder    uint   `json:"sortOrder"`
+	SortOrder            uint            `json:"sortOrder"`
-	CreatedAt    string `json:"createdAt"`
+	CreatedAt            string          `json:"createdAt"`
-	UpdatedAt    string `json:"updatedAt"`
+	UpdatedAt            string          `json:"updatedAt"`
-	VideoCount   int64  `json:"videoCount,omitempty"`
+	VideoCount           int64           `json:"videoCount,omitempty"`
+	LatestVideoUpdatedAt string          `json:"latestVideoUpdatedAt,omitempty"`
+	PreviewVideos        []VideoResponse `json:"previewVideos,omitempty"`
+}
+
+// VideoAlbumNavContext 视频详情页专辑内前后导航
+type VideoAlbumNavContext struct {
+	AlbumID    uint            `json:"albumId"`
+	AlbumName  string          `json:"albumName"`
+	PrevVideos []VideoResponse `json:"prevVideos"`
+	NextVideos []VideoResponse `json:"nextVideos"`
+}
+
+// VideoDetailResponse 视频详情 API 响应（含专辑导航）
+type VideoDetailResponse struct {
+	VideoResponse
+	AlbumContext *VideoAlbumNavContext `json:"albumContext,omitempty"`
+}
+
+// AdminVideoResponse 管理端视频响应（含所属专辑 ID）
+type AdminVideoResponse struct {
+	VideoResponse
+	AlbumIDs []uint `json:"albumIds,omitempty"`
 }
 
 // Video 视频模型

server/repositories/video_repository.go

@@ -139,21 +139,57 @@ func DeleteVideoAlbum(id uint) error {
 		Update("deleted_at", time.Now().Unix()).Error
 }
 
-func GetAlbumVideoCount(albumID uint) int64 {
+// GetAlbumVideoCount 统计专辑内视频数量；publishedOnly 为 true 时仅统计已发布视频
+func GetAlbumVideoCount(albumID uint, publishedOnly bool) int64 {
 	var count int64
-	config.DB.Model(&models.AlbumVideo{}).
+	q := config.DB.Model(&models.AlbumVideo{}).
 		Joins("JOIN videos v ON v.id = album_videos.video_id").
-		Where("album_videos.album_id = ? AND v.deleted_at = ? AND v.is_published = ?", albumID, 0, 1).
+		Where("album_videos.album_id = ? AND v.deleted_at = ?", albumID, 0)
-		Count(&count)
+	if publishedOnly {
+		q = q.Where("v.is_published = ?", 1)
+	}
+	q.Count(&count)
 	return count
 }
 
-func BuildVideoAlbumResponse(item *models.VideoAlbum) models.VideoAlbumResponse {
+// GetAlbumLatestVideoUpdatedAt 获取专辑内视频最新更新时间戳
+func GetAlbumLatestVideoUpdatedAt(albumID uint, publishedOnly bool) int64 {
+	var ts int64
+	q := config.DB.Model(&models.Video{}).
+		Select("COALESCE(MAX(videos.updated_at), 0)").
+		Joins("JOIN album_videos av ON av.video_id = videos.id").
+		Where("av.album_id = ? AND videos.deleted_at = ?", albumID, 0)
+	if publishedOnly {
+		q = q.Where("videos.is_published = ?", 1)
+	}
+	q.Scan(&ts)
+	return ts
+}
+
+// GetAlbumPreviewVideos 获取专辑预览视频列表（按 sort_order，最多 limit 条）
+func GetAlbumPreviewVideos(albumID uint, limit int, publishedOnly bool) ([]models.Video, error) {
+	if limit <= 0 {
+		limit = 5
+	}
+	var list []models.Video
+	q := config.DB.Model(&models.Video{}).
+		Joins("JOIN album_videos av ON av.video_id = videos.id").
+		Where("av.album_id = ? AND videos.deleted_at = ?", albumID, 0)
+	if publishedOnly {
+		q = q.Where("videos.is_published = ?", 1)
+	}
+	err := q.Order("av.sort_order ASC, av.created_at ASC").Limit(limit).Find(&list).Error
+	return list, err
+}
+
+// BuildVideoAlbumResponse 构建专辑响应；publishedOnly 控制统计与预览是否仅含已发布视频
+func BuildVideoAlbumResponse(item *models.VideoAlbum, publishedOnly bool) models.VideoAlbumResponse {
 	categoryName := ""
 	if cat, _ := GetVideoCategoryByID(item.CategoryID); cat != nil {
 		categoryName = cat.Name
 	}
-	return models.VideoAlbumResponse{
+	latestTs := GetAlbumLatestVideoUpdatedAt(item.ID, publishedOnly)
+	resp := models.VideoAlbumResponse{
 		ID:           item.ID,
 		Name:         item.Name,
 		Description:  item.Description,
@@ -164,14 +200,21 @@ func BuildVideoAlbumResponse(item *models.VideoAlbum) models.VideoAlbumResponse
 		SortOrder:    item.SortOrder,
 		CreatedAt:    formatTimestamp(item.CreatedAt),
 		UpdatedAt:    formatTimestamp(item.UpdatedAt),
-		VideoCount:   GetAlbumVideoCount(item.ID),
+		VideoCount:   GetAlbumVideoCount(item.ID, publishedOnly),
 	}
+	if latestTs > 0 {
+		resp.LatestVideoUpdatedAt = formatTimestamp(latestTs)
+	}
+	if previews, err := GetAlbumPreviewVideos(item.ID, 5, publishedOnly); err == nil && len(previews) > 0 {
+		resp.PreviewVideos = BuildVideosResponse(previews)
+	}
+	return resp
 }
 
-func BuildVideoAlbumsResponse(list []models.VideoAlbum) []models.VideoAlbumResponse {
+func BuildVideoAlbumsResponse(list []models.VideoAlbum, publishedOnly bool) []models.VideoAlbumResponse {
 	res := make([]models.VideoAlbumResponse, 0, len(list))
 	for i := range list {
-		res = append(res, BuildVideoAlbumResponse(&list[i]))
+		res = append(res, BuildVideoAlbumResponse(&list[i], publishedOnly))
 	}
 	return res
 }
@@ -318,3 +361,120 @@ func SyncAlbumVideos(albumID uint, videoIDs []string) error {
 	}
 	return nil
 }
+
+// GetAlbumIDsByVideoID 查询视频所属专辑 ID 列表
+func GetAlbumIDsByVideoID(videoID string) ([]uint, error) {
+	var ids []uint
+	err := config.DB.Model(&models.AlbumVideo{}).
+		Where("video_id = ?", videoID).
+		Pluck("album_id", &ids).Error
+	return ids, err
+}
+
+// GetPrimaryActiveAlbumForVideo 取视频关联的第一个启用专辑（按专辑 sort_order）
+func GetPrimaryActiveAlbumForVideo(videoID string) (*models.VideoAlbum, error) {
+	var album models.VideoAlbum
+	err := config.DB.Model(&models.VideoAlbum{}).
+		Joins("JOIN album_videos av ON av.album_id = video_albums.id").
+		Where("av.video_id = ? AND video_albums.deleted_at = ? AND video_albums.is_active = ?", videoID, 0, 1).
+		Order("video_albums.sort_order ASC, video_albums.id ASC").
+		First(&album).Error
+	if err == gorm.ErrRecordNotFound {
+		return nil, nil
+	}
+	return &album, err
+}
+
+// GetAlbumVideoNeighbors 获取专辑内当前视频的前后邻居（按 sort_order）
+func GetAlbumVideoNeighbors(albumID uint, videoID string, before, after int, publishedOnly bool) (prev, next []models.Video, err error) {
+	list, err := GetVideosByAlbumID(albumID, publishedOnly)
+	if err != nil {
+		return nil, nil, err
+	}
+	idx := -1
+	for i, v := range list {
+		if v.ID == videoID {
+			idx = i
+			break
+		}
+	}
+	if idx < 0 {
+		return nil, nil, nil
+	}
+	start := idx - before
+	if start < 0 {
+		start = 0
+	}
+	prev = list[start:idx]
+	end := idx + after + 1
+	if end > len(list) {
+		end = len(list)
+	}
+	next = list[idx+1 : end]
+	return prev, next, nil
+}
+
+// BuildVideoDetailResponse 构建视频详情响应（含专辑前后导航）
+func BuildVideoDetailResponse(item *models.Video) models.VideoDetailResponse {
+	resp := models.VideoDetailResponse{
+		VideoResponse: BuildVideoResponse(item),
+	}
+	album, err := GetPrimaryActiveAlbumForVideo(item.ID)
+	if err != nil || album == nil {
+		return resp
+	}
+	prev, next, err := GetAlbumVideoNeighbors(album.ID, item.ID, 2, 2, true)
+	if err != nil {
+		return resp
+	}
+	resp.AlbumContext = &models.VideoAlbumNavContext{
+		AlbumID:    album.ID,
+		AlbumName:  album.Name,
+		PrevVideos: BuildVideosResponse(prev),
+		NextVideos: BuildVideosResponse(next),
+	}
+	return resp
+}
+
+// GetAlbumIDsByVideoIDList 供管理端读取视频所属专辑
+func GetAlbumIDsByVideoIDList(videoID string) []uint {
+	ids, err := GetAlbumIDsByVideoID(videoID)
+	if err != nil {
+		return []uint{}
+	}
+	return ids
+}
+
+// BuildAdminVideoResponse 构建管理端视频响应（含 albumIds）
+func BuildAdminVideoResponse(item *models.Video) models.AdminVideoResponse {
+	return models.AdminVideoResponse{
+		VideoResponse: BuildVideoResponse(item),
+		AlbumIDs:      GetAlbumIDsByVideoIDList(item.ID),
+	}
+}
+
+// BuildAdminVideosResponse 批量构建管理端视频响应
+func BuildAdminVideosResponse(list []models.Video) []models.AdminVideoResponse {
+	res := make([]models.AdminVideoResponse, 0, len(list))
+	for i := range list {
+		res = append(res, BuildAdminVideoResponse(&list[i]))
+	}
+	return res
+}
+
+// SyncVideoAlbums 同步视频所属专辑（先删后建）
+func SyncVideoAlbums(videoID string, albumIDs []uint) error {
+	if err := config.DB.Where("video_id = ?", videoID).Delete(&models.AlbumVideo{}).Error; err != nil {
+		return err
+	}
+	for i, albumID := range albumIDs {
+		if albumID == 0 {
+			continue
+		}
+		if err := AddVideoToAlbum(albumID, videoID, uint(i+1)); err != nil {
+			log.Printf("SyncVideoAlbums error: %v", err)
+			return err
+		}
+	}
+	return nil
+}