更新登录页面和帮助教程

src/admin/nav-menu.tsx

@@ -11,7 +11,7 @@ export function AdminNavMenu() {
         <ProductDropdown />
       </AdminMenuItem>
       <AdminNavItem to="/ipline">IP线路表</AdminNavItem>
-      <AdminNavItem to="/softDownload">软件下载</AdminNavItem>
+      <AdminNavItem to="/softdownload">软件下载</AdminNavItem>
       <AdminNavItem to="/help">帮助/教程</AdminNavItem>
     </nav>
   )
@@ -153,60 +153,60 @@ function ProductDropdown() {
           title="动静态IP"
           desc="千万级动态短效IP，自动去重，高并发采集"
           tag="热门"
-          onClick={() => handleClick("/product/short")}
+          onClick={() => handleClick("/product?tab=short")}
         />
         <ProductCard
           title="新HTTP/S5"
           desc="IP可用时长从数小时到365天全覆盖"
           tag="稳定"
-          onClick={() => handleClick("/product/long")}
+          onClick={() => handleClick("/product?tab=long")}
         />
         <ProductCard
           title="HTTP/S5"
           desc="海量全球住宅优质IP，4G/5G真实手机IP"
           tag="全球"
-          onClick={() => handleClick("/product/global")}
+          onClick={() => handleClick("/product?tab=global")}
         />
         <ProductCard
           title="软路由成本价"
           desc="云端自动切换IP，更易于调用与开发"
-          onClick={() => handleClick("/product/tunnel")}
+          onClick={() => handleClick("/product?tab=tunnel")}
         />
         <ProductCard
           title="动态Vps"
           desc="IP独享，高带宽，灵活控制存活周期"
-          onClick={() => handleClick("/product/exclusive")}
+          onClick={() => handleClick("/product?tab=exclusive")}
         />
         <ProductCard
           title="静态独享IP"
           desc="纯净IP，更符合跨境卖家需求的云主机"
-          onClick={() => handleClick("/product/static")}
+          onClick={() => handleClick("/product?tab=static")}
         />
       </div>
 
       <div className="flex items-center flex-wrap gap-2 pt-2 border-t border-gray-100">
         <span className="text-xs font-medium text-gray-400">热门推荐:</span>
         <button
-          onClick={() => handleClick("/product/short")}
+          onClick={() => handleClick("/product?tab=short")}
           className="text-xs text-blue-600 hover:underline whitespace-nowrap"
         >
           短效代理
         </button>
         <button
-          onClick={() => handleClick("/product/global")}
+          onClick={() => handleClick("/product?tab=global")}
           className="text-xs text-blue-600 hover:underline whitespace-nowrap"
         >
           海外代理
         </button>
         <button
-          onClick={() => handleClick("/product/tunnel")}
+          onClick={() => handleClick("/product?tab=tunnel")}
           className="text-xs text-blue-600 hover:underline whitespace-nowrap"
         >
           隧道代理
         </button>
         <span className="text-xs text-gray-300">|</span>
         <button
-          onClick={() => handleClick("/custom")}
+          onClick={() => handleClick("/product")}
           className="text-xs text-orange-500 hover:underline font-medium whitespace-nowrap"
         >
           业务定制 →

src/admin/product/long.tsx

@@ -0,0 +1,3 @@
+export default function LongPage() {
+  return <div>LongPage</div>
+}

src/admin/product/short.tsx

@@ -0,0 +1,3 @@
+export default function ShortPage() {
+  return <div>ShortPage</div>
+}