Multiple style fixes

【Contents of correction】
■The date notation style that was different between the top page and the press release detail page has been unified.
■The background color of the breadcrumb list was broken in the middle on tablets.

The following files have been modified in accordance with this update.
【Corrected files】
index_template.php
style.css
style_pc.css

For more information, please visit the download site for purchasers of NEXTAGE (tcd021).