refactor: 产品分类

app/index/route/route.php

@@ -16,6 +16,8 @@ Route::get('/', 'Index/index');
 Route::group('product', function () {
     // 产品分类页
     Route::get('category/:id', 'Product/category');
+    // 产品分类 - 查看子类
+    Route::get('subcategory/:id', 'Product/subcategory');
     // 产品详情页
     Route::get('detail/:id', 'Product/detail');
     // 产品询盘