With the text still selected, choose Add New Fill from the pop-up menu of the Appearance panel. Fill the new fill with a reddish orange color. In the Appearance panel, press the drop-down arrow for the new fill to reveal its attributes. Press the Opacity link and change the Blending Mode to Multiply.
Create another new fill in the Appearance panel, select the bottom fill item, and fill it with a light yellow color. With the light yellow fill item selected in the Appearance panel, go Effect > Distort & Transform > Transform. In the Transform dialog, change the Horizontal Move to -2 px and the Vertical Move to 2 px.