.banner {
	width: 100%;
}

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

.main {
	background-color: #FFFFFF;
}

.main .main_bottom .sever_txt {
	width: 100%;
	background-color: #FFFFFF;
	padding-top: 100px;
	padding-bottom: 70px;
}

.main .main_bottom .sever_txt h4.title {
	font-family: pingfangm;
	color: #231815;
	font-size: 45px;
	line-height: 85px;
	background-image: url(../images/index_title_bg.png);
	background-repeat: no-repeat;
	text-align: center;
	background-position: bottom center;
	font-weight: 500;
}

.main .main_bottom .sever_txt .zongzhi {
	font-family: pingfangm;
	color: #231815;
	font-size: 20px;
	text-align: center;
	line-height: 50px;
	margin-top: 85px;
}
.main .main_bottom .sever_txt .zongzhi span {
	font-size: 28px;
	color: #009fe8;
	margin-right: 10px;
}

.main .main_bottom .sever_txt p {
	width: 1400px;
	margin: 0 auto;
	font-family: pingfangr;
	font-size: 15px;
	color: #808080;
	line-height: 35px;
	margin-top: 55px;
}

.main .main_bottom .sever_list {
	background-color: #f5f5f5;
	padding-top: 80px;
	padding-bottom: 120px;
}

.main .main_bottom .sever_list li:after {
	display: table;
	content: "";
	clear: both;
}

.main .main_bottom .sever_list li {
	background-color: #FFFFFF;
}

.main .main_bottom .sever_list li>* {
	width: 50%;
	float: left;
}

.main .main_bottom .sever_list li.even>* {
	float: right;
}

.main .main_bottom .sever_list li .pic img {
	display: block;
	width: 100%;
}

.main .main_bottom .sever_list li .txt {
	padding-left: 80px;
	box-sizing: border-box;
}

.main .main_bottom .sever_list li .txt h4 {
	font-family: pingfangm;
	font-size: 26px;
	color: #333333;
	/*font-weight: 500;*/
	line-height: 66px;
	background-image: url(../images/sever_title.png);
	background-repeat: no-repeat;
	background-position: left bottom;
	margin-top: 60px;
	margin-bottom: 24px;
}

.main .main_bottom .sever_list li .txt .article p {
	font-family: pingfangr;
	font-size: 16px;
	color: #808080;
	line-height: 30px;
}

.main .main_bottom .sever_list li:nth-of-type(1),
.main .main_bottom .sever_list li:nth-of-type(3) {
	background-repeat: no-repeat;
	background-position: right 80px bottom 90px;
}

.main .main_bottom .sever_list li:nth-of-type(2),
.main .main_bottom .sever_list li:nth-of-type(4) {
	background-repeat: no-repeat;
	background-position: left 515px bottom 90px;
}

.main .main_bottom .sever_list li:nth-of-type(1) {
	background-image: url(../images/sever_i1.png);
}

.main .main_bottom .sever_list li:nth-of-type(2) {
	background-image: url(../images/sever_i2.png);
}

.main .main_bottom .sever_list li:nth-of-type(3) {
	background-image: url(../images/sever_i3.png);
}

.main .main_bottom .sever_list li:nth-of-type(4) {
	background-image: url(../images/sever_i4.png);
}

@media screen and (max-width: 1450px) {
	.main .main_bottom .sever_txt p {
		width: 1200px;
	}
}

@media screen and (max-width: 550px) {
    
    .banner img {
        width: 150%;
        margin-left: -30%;
    }
	
	.main .main_bottom .sever_txt {
		padding-top: 0px;
		padding-bottom: 0px;
	}
	
	.main .main_bottom .sever_txt h4.title {
		font-size: 34px;
		line-height: 64px;
	}
	
	.main .main_bottom .sever_txt .zongzhi {
		margin-top: 35px;
	}
	
	.main .main_bottom .sever_txt .zongzhi {
		text-align: left;
		text-indent: 2em;
		box-sizing: border-box;
		padding: 0 10px;
		line-height: 35px;
	}
	
	.main .main_bottom .sever_txt .zongzhi span {
		padding: 0px;
		font-size: 20px;
	}
	
	.main .main_bottom .sever_txt p {
		margin-top: 25px;
		line-height: 25px;
		text-indent: 2em;
		box-sizing: border-box;
		padding: 0 10px;
		width: 100%;
		padding-bottom: 40px;
	}
	
	.main .main_bottom .sever_list {
		padding-top: 0px;
		padding-bottom: 0px;
	}
	
	.main .main_bottom .sever_list li>* {
		width: 100%;
		float: none;
	}
	
	.main .main_bottom .sever_list li .txt {
		padding: 0 10px;
		padding-bottom: 50px;
	}
	
	.main .main_bottom .sever_list li .txt h4 {
		margin-top: 10px;
	}
	
	.main .main_bottom .sever_list li {
		background-image: none !important;
	}
	
}