.main4 {
	background-color: #f6f6f6;
}
.main4_wrap {
	position: relative;
	width: 100%;
	max-width: 1440px;
	margin: 140px auto;
}
.main4_wrap .section_title {
	text-align: center;
}
.main4_wrap .section_title .line {
	margin-top: 34px;
}
.main4_list {
	margin-top: 70px;
	text-align: center;
}
.main4_list li {
	display: inline-block;
	width: 25%;
	margin-bottom: 40px;
	vertical-align: top;
}
.main4_list li a {
	position: relative;
	display: block;
	height: 340px;
	margin: 0 20px;
	color: #222;
	background-color: #fff;
	box-shadow: 0 1px 4px rgba(17,17,17,0.4);
	transition: color 0.3s, background-color 0.3s;
}
.main4_list li a .info {
	height: 100%;
}
.main4_list li a .info .icon {
	padding-top: 65px;
	font-size: 40px;
}
.main4_list li a .info .eng {
	margin-top: 32px;
	font-size: 26px;
	font-weight: bold;
	font-family: 'Karla','Karla' ;
}
.main4_list li a .info .name {
	margin-top: 14px;
	font-size: 18px;
	color: #666;
}
.main4_list li a .info .btn {
	margin-top: 65px;
}
.main4_list li a .loader {
	position: absolute;
	top: 0; right: 0; bottom: 0; left: 0;
	margin: auto;
	opacity: 0; visibility: hidden;
	transition: transform 0.3s linear, opacity 0.3s linear, visibility 0.3s linear;
}
.main4_list li a:hover .loader {
	opacity: 1; visibility: visible;
}


@media ( max-width: 1440px ) {
	.main4_wrap {
		max-width: calc(100% - 30px);
	}
}


@media ( max-width: 1280px ) {
	.main4_list li a {
		margin: 0 10px;
	}
	.main4_list li a .info .eng {
		font-size: 20px;
	}
}


@media ( max-width: 1024px ) {
	.main4_wrap {
		max-width: calc(100% - 10px);
		margin: 70px auto 60px;
	}
	.main4_wrap .section_title .line {
		margin-top: 20px;
	}
	.main4_list {
		margin-top: 35px;
		text-align: left;
	}
	.main4_list li {
		margin-bottom: 10px;
		text-align: center;
	}
	.main4_list li a {
		height: 200px;
		margin: 0 5px;
	}
	.main4_list li a .info .icon {
		padding-top: 60px;
		font-size: 30px;
	}
	.main4_list li a .info .eng {
		margin-top: 12px;
		padding: 0 10px;
		font-size: 20px;
		line-height: 1.1;
		white-space: nowrap;
		text-overflow: ellipsis;
		overflow: hidden;
	}
	.main4_list li a .info .name {
		margin-top: 6px;
		font-size: 14px;
	}
	.main4_list li a .info .btn {
		display: none;
	}
}



@media ( max-width: 768px ) {
	.main4_list li {
		width: 50%;
	}
	.main4_list li a {
		height: 130px;
	}
	.main4_list li a .info .icon {
		padding-top: 25px;
	}
	
}


@media ( max-width: 360px ) {
	.main4_list li a .info .eng {
		font-size: 16px;
	}
}