feat: 更新网站页面和组件，新增多个页面（关于、专家、会员、政策等）

app/pages/consulting/index.vue

@@ -0,0 +1,20 @@
+<template>
+  <SectionStub
+    title="咨询服务"
+    description="围绕决策需求提供咨询服务与研究支撑，覆盖需求对接、成果交付与持续跟踪。"
+    :links="links"
+  />
+</template>
+
+<script setup lang="ts">
+import SectionStub from '@/components/SectionStub.vue'
+import { usePageSeo } from '@/composables/usePageSeo'
+usePageSeo({ title: '咨询服务', description: '咨询服务栏目入口。', path: '/consulting' })
+
+const links = [
+  { label: '服务简介', to: '/consulting/intro' },
+  { label: '研究成果', to: '/consulting/results' },
+  { label: '联系', to: '/contact' }
+]
+</script>
+