gistfile1.aw

<?php
  return array(
    '#theme' => 'node_article',
    '#article_title' => $node->title,
    '#article_body' => $node->body,    
    '#attached' => array(  //special property to attach a CSS or JS file to a template
      'css' => array(
        '/sites/all/modules/ew' . '/ew.css', //use drupal_get_path() instead
      )
    )
  );