feat(app): 添加多模板关于我们页面及相关路由和404页面

- 新增404页面，优化未找到页面体验，避免被搜索引擎索引 - 增加文件代理接口，隐藏真实文件服务器地址，支持文件请求代理 - 实现/article、/case、/product及/page动态路由兼容列表与详情展示 - 添加动态CMS页面兼容入口处理旧式路径，统一路由与SEO设置 - 新增模板1、模板7、模板2、模板3关于我们页面，实现多模板支持 - 模板增强支持CMS单页内容加载及SEO信息动态设置 - 配置环境变量及Git忽略文件规则辅助开发和构建环境管理
2026-09-08 12:13:44 +08:00
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+<template>
+  <div class="min-h-screen py-16 bg-[var(--t8-bg-soft)]">
+    <div class="container mx-auto px-4 sm:px-6 lg:px-8">
+      <div class="text-center mb-12">
+        <span class="inline-block px-3 py-1 rounded-full bg-[var(--t8-primary-soft)] text-[var(--t8-primary)] text-sm font-semibold mb-4">{{ pageTitle }}</span>
+        <h1 class="text-3xl font-bold text-[var(--t8-text)] mb-4">{{ pageTitle }}</h1>
+        <p class="text-[var(--t8-text-secondary)] max-w-2xl mx-auto">展示我们的成功案例与行业经验</p>
+      </div>
+
+      <div v-if="pending" class="flex justify-center py-12">
+        <SiteLoading />
+      </div>
+      <SiteError v-else-if="error" message="获取案例列表失败" />
+
+      <div v-else class="grid sm:grid-cols-2 lg:grid-cols-3 gap-6">
+        <article
+          v-for="item in cases"
+          :key="item.id"
+          class="group bg-white rounded-3xl overflow-hidden shadow-sm hover:shadow-md transition-shadow border border-[var(--t8-border)]"
+        >
+          <NuxtLink :to="`/case/${item.id}`" class="block">
+            <div class="aspect-[4/3] bg-[var(--t8-primary-faint)] overflow-hidden">
+              <img
+                v-if="item.cover"
+                :src="fileUrl(item.cover)"
+                :alt="item.title"
+                class="w-full h-full object-cover group-hover:scale-105 transition-transform duration-500"
+              >
+              <span v-else class="flex items-center justify-center h-full text-[var(--t8-muted)]">暂无图片</span>
+            </div>
+            <div class="p-5">
+              <h2 class="text-lg font-semibold text-[var(--t8-text)] mb-2 group-hover:text-[var(--t8-primary)] transition-colors">
+                {{ item.title }}
+              </h2>
+              <p class="text-sm text-[var(--t8-text-secondary)] line-clamp-2">{{ stripHtml(item.summary) }}</p>
+              <div v-if="item.clientName" class="mt-3 text-xs text-[var(--t8-text-secondary)]">
+                客户：{{ item.clientName }}
+              </div>
+            </div>
+          </NuxtLink>
+        </article>
+      </div>
+
+      <!-- 空状态 -->
+      <div v-if="!pending && !error && cases.length === 0" class="text-center py-20">
+        <svg class="w-16 h-16 mx-auto text-[var(--t8-muted-light)] mb-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
+        </svg>
+        <p class="text-[var(--t8-text-secondary)]">暂无案例内容</p>
+      </div>
+
+      <!-- 分页 -->
+      <div v-if="totalPages > 1" class="flex justify-center mt-12">
+        <nav class="flex items-center gap-2">
+          <button
+            v-for="p in totalPages"
+            :key="p"
+            class="px-4 py-2 text-sm rounded-lg transition-colors"
+            :class="p === currentPage ? 'bg-[var(--t8-primary)] text-white' : 'bg-white text-[var(--t8-text)] hover:bg-[var(--t8-primary-soft)]'"
+            @click="currentPage = p"
+          >
+            {{ p }}
+          </button>
+        </nav>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import type { CaseItem, PageResult } from '~/types'
+import { collectDescendantNavIds } from '~/utils/nav-tree'
+
+/**
+ * 模板 3 - 案例列表页（暖米轻商风）
+ */
+const { fileUrl } = useFileUrl()
+const route = useRoute()
+const { allNavigations, fetchSiteInfo } = useSite()
+
+// 确保导航数据已加载（用于栏目标题与分类判定）
+await fetchSiteInfo()
+
+// 列表（栏目）入口 /case/{navigationId} 时按分类过滤；/case 根目录展示全部案例
+const navigationId = computed<number | undefined>(() => {
+  const id = route.params.id
+  return id ? Number(id) : undefined
+})
+
+// 聚合：父栏目访问时递归收集自身 + 所有后代栏目 navigationId，交给后端 IN 查询
+const categoryIds = computed<string | undefined>(() => {
+  const ids = collectDescendantNavIds(navigationId.value, allNavigations.value || [])
+  return ids.length ? ids.join(',') : undefined
+})
+
+const currentPage = ref(1)
+const limit = 12
+
+const { data, pending, error } = await useFetch<PageResult<CaseItem>>('/api/case/list', {
+  key: `case-list-${categoryIds.value ?? navigationId.value ?? 'all'}-p${currentPage.value}`,
+  query: {
+    page: currentPage,
+    limit,
+    ...(categoryIds.value
+      ? { categoryIds: categoryIds.value }
+      : (navigationId.value ? { navigationId: navigationId.value } : {}))
+  },
+  watch: [currentPage, categoryIds, navigationId]
+})
+
+const cases = computed(() => data.value?.list || [])
+
+const totalCount = computed(() => data.value?.count ?? 0)
+const totalPages = computed(() => Math.max(1, Math.ceil(totalCount.value / limit)))
+
+// 切换栏目时回到第 1 页
+watch([categoryIds, navigationId], () => {
+  currentPage.value = 1
+})
+
+// 栏目标题：命中导航取导航标题，否则用模块默认名
+const pageTitle = computed(() => {
+  const id = navigationId.value
+  if (id == null) return '案例展示'
+  const navs = (allNavigations.value || []) as any[]
+  const find = (items: any[]): any => {
+    for (const it of items) {
+      if (it.navigationId === id) return it
+      if (it.children?.length) {
+        const f = find(it.children)
+        if (f) return f
+      }
+    }
+    return undefined
+  }
+  return find(navs)?.title || '案例展示'
+})
+
+</script>