html{background:#0073e8 url(banner_bg.jpg) no-repeat center 100px;}
.header{ background:#FFF}
.banner{width:100%; text-indent:-10000px; overflow:hidden;height:460px}
.div1,.div2,.div3,.div4{width:1200px;margin:0 auto;clear:both}
.div1 p{margin:15px 30px;font-size:16px;line-height:200%;text-indent:40px;color:#FFF}
h2{margin:20px 0;color:#FFF; text-align:center;line-height:45px;font-size:24px;font-weight:600; background:#0088fe;padding:10px 0;clear:both}
h3{margin:20px 0;color:#FFF; line-height:45px;font-size:20px;font-weight:400;padding:10px 0;clear:both}
.div2_1,.div2_2,.div2_3{display:table;clear:both;width:100%}
.div2_1 li{width:33%;float:left;}
.div2_2 li{width:25%;float:left;}
.div2_3 li{width:50%;float:left;}
.div2 li img{width:90%;display:block;}
.div2_3 li img{width:70%;display:block;margin:0 auto}
.div2 p{float:left;width:500px;font-size:14px;color:#83d0ff}
.div2 ul{display:table;width:680px;padding-left:20px}
.div3_1,.div3_2{width:530px}
.div3_1{float:left}
.div3_2{float:right}
.div3 h3{margin:0}
.div3 p{float:left;width:500px;font-size:14px;color:#83d0ff;padding-bottom:30px}
.div3 a,.div4 a{color:#FFF}
.div4 li{color:#83d0ff;padding-bottom:30px;width:33%;float:left;text-align:center}
.footer{color:#FFF}

@media screen and (max-width: 500px) {
	html{background:#0073e8 url(http://www.cin.cn/images/ztimg/2020/1018/320_165.jpg) no-repeat center 40px;}
	.banner{width:100%; text-indent:-10000px; overflow:hidden;height:200px}
	h2{margin:10px;}
	.div1,.div2,.div3,.div4{width:320px;margin:0 auto;clear:both}
  .div1 p{margin:15px 10px;font-size:16px;line-height:200%;text-indent:40px;color:#FFF}
  .div2 p{float:none;margin:0 auto;width:300px;font-size:14px;color:#83d0ff}
  
  .div2_1 li,.div2_2 li,.div2_3 li{width:300px;margin:0 auto;float:none;}
  .div2 ul{display:table;width:320px;padding-left:0px}
  .div2 li img{width:90%;display:block;margin:10px auto}
  .div3_1,.div3_2{width:320px}
  .div3_1,.div3_2{float:none}
  .div3 p {
    float: none;
    width: 300px;
    font-size: 14px;
    color: #83d0ff;
    padding-bottom: 30px;
    margin:0 auto
}
  .div4 li{color:#83d0ff;padding-bottom:10px;width:80%;float:none;margin:0 auto;text-align:left}
  .footer{color:#000}
}