Multiple optimization tweaks and slider bug fixes

【Contents of the fixes】
■Adjusted the display style of the production results list page and blog list page for smartphone display.
■Theme Options > Optimization of header content setting fields.
■Adjusted the display style of the sidebar when the window is 1024px wide (iPad landscape orientation).
■Fixed a bug that made the slider display unstable in some environments.

The following files have been modified for this update.
【Corrected files】
admin/theme-options.php
css/responsive.css
footer.php
functions/head.php
header.php
style.css

For more information, please visit the download site for purchasers of UNIQUE (tcd044).