.header_t								{position:fixed; background:rgba(0,0,0,0.3); z-index:9999; width:100%; padding:1rem 3% 0.8rem 3%; }
.header_t:after					{width:100%; clear:both; content:''; display:block;}
.header_logo						{float:left; max-width:222px;}
.header_gnb							{float:right; max-width:600px;}



@media (max-width:768px){
.header_t					{width:100%; margin:0 auto;}
.header_logo			{width:30%; margin:10px auto;}
.header_logo img	{max-width:100%; height:auto;}
.header_gnb				{display:none;}
.header_menu_btn	{float:right; width:30px; display:block; cursor:pointer; padding:0px 0px;}
.bar1, .bar2, .bar3 {width:30px; height:3px; background:#fff; margin:6px 0;}
}

@media (max-width:640px){
.header_logo			{width:30%; margin:0px auto 0px auto;}
.header_menu_btn	{top:0px; padding:0px 0px;}
}