.banner {
	width: 100%;
}

.banner img {
	display: block;
	width: 100%;
}

.main {
	background-color: #eef2f5;
	padding-top: 80px;
	padding-bottom: 100px;
}

.main .en_title {
	font-family: enfont;
	font-size: 48px;
	color: #21478b;
	line-height: 48px;
	text-align: center;
}

.main .title {
	font-family: pingfang;
	font-size: 36px;
	color: #333333;
	line-height: 36px;
	margin-top: 16px;
	text-align: center;
}

.main .product_list li {
    margin-left: calc((100% - 1200px) / 2);
    padding-right: calc((100% - 1200px) / 2);
    background-color: #FFFFFF;
    padding-top: 45px;
    padding-bottom: 45px;
    margin-top: 52px;
}

.main .product_list li .l {
	width: 50%;
	box-sizing: border-box;
	padding-left: 30px;
	padding-right: 50px;
	text-align: justify;
}

.main .product_list li .l h4.product_title {
	font-family: pingfang;
	font-size: 24px;
	color: #ff0000;
	line-height: 48px;
	margin-bottom: 45px;
}

.main .product_list li .l .product_summary {
	font-family: pingfangh;
	font-size: 18px;
	color: #333333;
	line-height: 34px;
}

.main .product_list li .r .pic {
	width: 364px;
	margin-right: 70px;
}

.main .product_list li .r .pic img {
	width: 100%;
}

@media screen and (max-width: 1030px) {
	.main .product_list li {
		margin-left: 0px;
		padding-right: 0px;
	}
	
	.main .product_list li .r .pic {
		margin-right: 0px;
	}
	
}

@media screen and (max-width: 450px) {
	.main {
		padding-top: 20px;
		padding-bottom: 0px;
	}
	
	.main .en_title {
		font-size: 40px;
		line-height: 40px;
	}
	
	.main .title {
		font-size: 30px;
		line-height: 30px;
	}
	
	.main .product_list li .l {
		width: 100%;
		padding: 0 10px;
	}
	
	.main .product_list li .l h4.product_title {
		margin-bottom: 20px;
	}
	
	.main .product_list li .l .product_summary {
		font-size: 16px;
		line-height: 30px;
		padding-bottom: 20px;
	}
	
	.main .product_list li .r {
		width: 100%;
	}
	
	.main .product_list li .r .pic img {
		margin: 0 auto;
		display: block;
		width: 100%;
	}
}