How do I set up a route for a form inside a landing page section in Laravel?

The website I'm working on is one continuous landing page with sections pulled in via blade pages and elements. How do I route a contact form in one of the landing page sections to a controller I've built?

I've built a controller that will send an email to my site administrator and also display a success notification to the user submitting the form. Right now, I've built the form on its own view ('example.com/contact'). Everything works appropriately when using the view. But I don't know how to get the landing page URL for the production contact form ('example.com/#contact') to route to the same (or any) controller.

@section('content')

@include('layouts.partials._header')

@include('pages.elements._about')

<div class="separator-line separator-primary"></div>

@include('pages.elements._calendar')

<div class="separator-line separator-primary"></div>

@include('pages.elements._contact') <!--form is pulled in here-->

@endsection

current web route that works with a separate view:

   Route::get('/', function () {
    return view('pages.landing');
   });
   Route::get('/contact', 'ContactController@show');
   Route::post('/contact', 'ContactController@mailToAdmin');

Controller I'm trying to route the form to:

class ContactController extends Controller
{


    public function mailToAdmin(ContactFormRequest $message, Admin $admin)
    {
        $admin->notify(new InboxMessage($message));
        return redirect()->back()->with('message', 'Thanks for the message! We will get back to you soon!');
    }
}

via Chebli Mohamed