I registered a post type named ‘work,’ and I need to modify the permalink structure for this post type to an string consisting of 18 characters. I use the following code to rewrite the rules, but when I open a ‘work’ post page, it goes to the ‘work’ archive page instead. I don’t know where the issue is.

register post type:

<?php
namespace BLANPI\App;
defined('ABSPATH') || exit;
use BLANPI\App\Traits\Singleton;

class Blanpi_Post_Type
{
  use Singleton;
  protected function __construct()
  {
    $this->setup_hooks();
  }
  protected function setup_hooks()
  {
    add_action('init', [$this, 'blanpi_create_post_type']);
  }
  public static function blanpi_create_post_type()
  {
    $work_args = array(
      'labels' => array(
        'name' => __('Work', 'blanpi'),
        'singular_name' => __('Work', 'blanpi'),
        'menu_name' => __('Work', 'blanpi'), 'admin menu',
        'name_admin_bar' => __('Work', 'blanpi'),
      ),
      'public' => true,
      'publicly_queryable' => true,
      'show_ui' => true,
      'show_in_menu' => true,
      'show_in_nav_menus' => true,
      'query_var' => true,
      'rewrite' => true,
      'capability_type' => 'post',
      'has_archive' => true,
      'hierarchical' => true,
      'menu_position' => null,
      'show_in_rest' => true,
      'supports' => array('title', 'editor', 'post-formats', 'author', 'custom-fields'),
      'menu_icon' => 'dashicons-format-gallery'
    );
    register_post_type('work', $work_args);
  }
}

rewrite:

<?php
namespace BLANPI\App;
defined('ABSPATH') || exit;
use BLANPI\App\Traits\Singleton;
class Blanpi_Setup
{
  use Singleton;
  protected function __construct()
  {
    $this->setup_hooks();
  }
  protected function setup_hooks()
  {
    add_filter('post_link', [$this, 'custom_permalink'], 10, 3);
    add_filter('post_type_link', [$this, 'custom_permalink'], 10, 3);
    add_action('init', [$this, 'custom_rewrite_rules']);
  }
  public function custom_rewrite_rules()
  {
    add_rewrite_rule(
      '^work/([^/]+)/?$',
      'index.php?post_type=work&p=$matches[1]',
      'top'
    );
    add_rewrite_rule(
      '^work/([^/]+)/([^/]+)/?$',
      'index.php?post_type=work&name=$matches[2]',
      'top'
    );
  }

  public function custom_permalink($permalink, $post, $leavename)
  {
    if ($post && $post->post_type == 'work') {
      $permalink = home_url('/') . substr(md5($post->ID), 0, 18) . '/';
    }
    return $permalink;
  }
}

I want change the url link this:

https://webiste.com/8212a829abo92822kl