I also working on ait theme template,
If you want to add new css & js file into child theme so u first create function.php file in child theme directory & after that u can write following code…
<?php
define('CHILD_THEME_DIR', get_bloginfo(stylesheet_directory));
/* this is my child theme css folder */
define('CHILD_THEME_CSS_DIR', CHILD_THEME_DIR . '/assets/css');
/* this is my child theme js folder */
define('CHILD_THEME_JS_URL', CHILD_THEME_DIR . '/assets/js');
define('CHILD_THEME_LIB_DIR', CHILD_THEME_DIR . '/libraries');
define('CHILD_THEME_IMG_URL', CHILD_THEME_DIR . '/assets/img');
define('CHILD_THEME_FONTS_DIR', CHILD_THEME_DIR . '/assets/fonts');
function mychildScriptsAndStyles()
{
$css = CHILD_THEME_CSS_DIR;
$jj = CHILD_THEME_JS_URL;
$lib = CHILD_THEME_LIB_DIR;
aitAddStyles(array(
'bootstrap-min' => array('file' => "$css/bootstrap.min.css"),
'chosen-min' => array('file' => "$lib/chosen/chosen.min.css"),
'pictopro-outline' => array('file' => "$lib/pictopro-outline/pictopro-outline.css"),
'pictopro-normal' => array('file' => "$lib/pictopro-normal/pictopro-normal.css"),
'colorbox' => array('file' => "$lib/colorbox/colorbox.css"),
'carat-css' => array('file' => "$css/carat.css"),
));
aitAddScripts(array(
'jquery' => array('file' => "$jj/jquery.js"),
'jquery-ui' => array('file' => "$jj/jquery.ui.js"),
'jquery-migrate' => array('file' => "code.jquery.com/jquery-migrate-1.2.1.js", 'deps' => array('jquery')),
'bootstrap' => array('file' => "$jj/bootstrap.js"),
'cycle' => array('file' => "$jj/cycle.js"),
'carat' => array('file' => "$jj/carat.js"),
'ezmark' => array('file' => "$lib/ezMark/js/jquery.ezmark.js"),
'jquery-slider' => array('file' => "$lib/jslider/bin/jquery.slider.min.js"),
'colorbox' => array('file' => "$lib/colorbox/jquery.colorbox-min.js"),
'chosen' => array('file' => "$lib/chosen/chosen.jquery.js"),
'easytabs' => array('file' => "$lib/easy-tabs/lib/jquery.easytabs.min.js"),
));
}
add_action('wp_enqueue_scripts', 'mychildScriptsAndStyles');
Add this in function.php. Hope It will be helpful…!!