.main_about{
	display:flex;
}
.main_about h2{
	margin: 0 0 16px 0;
	font-weight: 600;
	font-size: 24px;
	line-height: 29px;
	color: #1B1B1B;
}
.main_about ._left{
	width: Calc(100% - 670px);
}

.main_about_text{
	width: 100%;
	font-weight: 500;
	font-size: 15px;
	line-height: 150%;
	color: #1B1B1B;
}

.main_about_text ul{
	padding-left: 24px;
	margin: 14px 0 0;
}

.main_about ._left a{
	margin-top: 12px;
}
.main_about ._right{
	display:flex;
	width:650px;
	max-width:650px;
	min-width:650px;
	overflow:hidden;
	margin-left:20px;
	margin-top: 45px;
}
.main_about ._big{
	width: 100%;
	overflow: hidden;
	max-height: 370px;
	border-radius: 3px;
}
.main_about ._slide{
	background-repeat:no-repeat;
	background-size:cover;
	background-position:center center;
	border-radius: 3px;
}
.main_about ._big ._slide{
	width:485px;
	height:370px;
}
.main_about ._small{
	width:150px;
	min-width:150px;
	max-width:150px;
	margin-left:15px;
	overflow:hidden;
	max-height:370px;
}
.main_about ._small ._slide{
	width:150px;
	height:114px;
	margin:0 0 14px;
	filter: grayscale(100%) blur(1px);
	transition:0.3s;
	border-radius: 3px;
}
.main_about ._small .slick-current{
	filter:none;
}
.main_about ._small .slick-list{
	height:100%;
}

@media (max-width:1119px){

	.main_about{
		flex-wrap: wrap;
		-ms-flex-wrap: wrap;
		-webkit-flex-wrap: wrap;
	}

	.main_about ._left{
		width: 100%;
	}
}

@media (max-width:768px){

	.main_about{
		flex-direction:column;
	}

	.main_about .desk_height{
		padding-top: 30px;
	}

	.main_about h2{
		margin: 0 0 8px 0;
	}

	.main_about ._left a{
		margin-top:12px;
	}

	.main_about ._right{
		margin-top:17px;
		margin-left:0;
		width:100%;
		min-width:auto;
		max-width:none;
		flex-direction:column;
	}

	.main_about ._big ._slide{
		height:370px;
	}

	.main_about ._small{
		width: 100%;
		min-width: auto;
		max-width: none;
		margin-left: auto;
		margin-top:15px;
		overflow: hidden;
		max-height: 112px;
	}

	.main_about ._small ._slide{
		height:112px;
		margin:0 6px 0;
	}
}

@media (max-width: 568px){

	.main_about ._big{
		max-height: 264px;
	}

	.main_about ._big ._slide{
		height: 264px;
	}

	.main_about ._small{
		max-height: 86px;
		margin: 8px 0 0;
	}

	.main_about ._small ._slide{
		height: 86px;
		margin: 0 4px 0;
	}

	.main_about ._small .slide_left{
		left: 16px;
	}

	.main_about ._small .slide_right{
		right: 16px;
	}
}