优化导航栏性能，完善导航栏弹出菜单的移动端适配；调整导航栏与 store 公共组件的所在目录结构

src/app/(home)/@header/menu-help.tsx

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+import Link from 'next/link'
+import Image, {StaticImageData} from 'next/image'
+import Wrap from '@/components/wrap'
+import h01 from '@/assets/header/help/01.svg'
+import h02 from '@/assets/header/help/02.svg'
+import h03 from '@/assets/header/help/03.svg'
+import banner from '@/assets/header/help/banner.webp'
+import {FragmentTitle} from '@/app/(home)/@header/common'
+
+export default function HelpMenu() {
+  return (
+    <Wrap className="w-full grid sm:grid-cols-3 lg:grid-cols-4 gap-4 justify-items-start">
+      <Column
+        icon={h01}
+        title="提取 IP"
+        items={[
+          {lead: '短效 IP 提取', href: '#'},
+          {lead: '长效 IP 提取', href: '#'},
+        ]}
+      />
+      <Column
+        icon={h02}
+        title="使用教程"
+        items={[
+          {lead: '快速入手', href: '#'},
+          {lead: '代码下载', href: '#'},
+          {lead: 'API文档', href: '#'},
+        ]}
+      />
+      <Column
+        icon={h03}
+        title="产品功能"
+        items={[
+          {lead: '常见问题', href: '#'},
+          {lead: '产品介绍', href: '#'},
+          {lead: '行业资讯', href: '#'},
+        ]}
+      />
+      <Image src={banner} alt="banner" className="hidden lg:block"/>
+    </Wrap>
+  )
+}
+
+function Column(props: {
+  icon: StaticImageData
+  title: string
+  items: {
+    lead: string
+    href: string
+  }[]
+}) {
+  return (
+    <div className="flex-1 flex flex-col gap-4">
+      <FragmentTitle img={props.icon} text={props.title}/>
+      <ul className="flex flex-col gap-2">
+        {props.items.map((item, index) => (
+          <li key={index}>
+            <Link href={item.href} className="px-4 py-2">{item.lead}</Link>
+          </li>
+        ))}
+      </ul>
+    </div>
+  )
+}