*{margin:0;padding:0;}
body{color:#333;font-size:12px; 
font-family:"Microsoft Yahei","Helvetica Neue",Helvetica,Arial,"Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;background-color:#3d7e81;}
h1,h2,h3,h4,h5,h6{font-size:100%;}
a{text-decoration:none;color:inherit;} 
a:hover{text-decoration: none;}
li{list-style-type:none;}
img{border: none;}
em,b,strong,i{font-style:normal;}
a,select,input,textarea{outline:none;resize:none;}
.pr{position: relative;}
.pa{position: absolute;}
.pf{position: fixed;}
.fl{float: left;}
.fr{float: right;}
.text-l{text-align:left;}
.text-r{text-align:right;}
.text-c{text-align:center;}
.text-j{text-align:justify;}
.text-hide-1{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.clearfix:before,.clearfix:after{clear:both;content:'.';display:block;height:0;visibility:hidden;line-height:0;}
.clearfix{*zoom:1;}

.size{margin:0 auto;width:1200px;}

.item1{height:1068px;background-image:url(item1_bg.jpg);background-repeat:no-repeat;background-position:center center;}
.item1 .logo2021{top:60px;left:28px;}
.item2{height:509px;background-image:url(item2_bg.jpg);background-repeat:no-repeat;background-position:center center;}
.item3{height:693px;background-image:url(item3_bg.jpg);background-repeat:no-repeat;background-position:center center;}
.item4{height:1038px;background-image:url(item4_bg.jpg);background-repeat:no-repeat;background-position:center center;}
.item5{height:684px;background-image:url(item5_bg.jpg);background-repeat:no-repeat;background-position:center center;}
.item5 .size{padding-top:170px;}
.item5 .item5-tab-tit span{margin-bottom:10px;width:300px;height:99px;background:url(tab_tit.png) no-repeat;display:block;cursor:pointer;}
.item5 .item5-tab-tit span.tab-tit-1{background-position:0 0;}
.item5 .item5-tab-tit span.tab-tit-1.on{background-position:0 -99px;}
.item5 .item5-tab-tit span.tab-tit-2{background-position:-300px 0;}
.item5 .item5-tab-tit span.tab-tit-2.on{background-position:-300px -99px;}
.item5 .item5-tab-tit span.tab-tit-3{background-position:-600px 0;}
.item5 .item5-tab-tit span.tab-tit-3.on{background-position:-600px -99px;}
.item5 .item5-tab-tit span.tab-tit-4{background-position:-900px 0;}
.item5 .item5-tab-tit span.tab-tit-4.on{background-position:-900px -99px;}
.item5 .item5-tab-con{width:839px;height:426px;overflow:hidden;background:url(item5_pic_bg.png) no-repeat;background-position:center center;}
.item5 .item5-tab-con .item5-tab-item{margin:52px auto 0;width:709px;height:320px;display:none;}
.item6{height:615px;background-image:url(item6_bg.jpg);background-repeat:no-repeat;background-position:center center;}
.item6 .size{padding-top:214px;}
.item6 .item6-img{margin-left:42px;padding:8px;width:543px;height:347px;background-color:#f9d7b6;border-radius:6px;overflow:hidden;}
.item6 .item6-img img{width:100%;height:100%;border-radius:6px;display:block;}
.item6 .item6-img p{padding:6px 0;bottom:8px;left:8px;width:543px;background-color:rgba(0,0,0,0.29);border-radius:0 0 6px 6px;color:#fff;font-size:16px;}
.item6 .item6-list{padding:82px 105px 0 0;max-width:460px;}
.item6 .item6-list li{margin-bottom:38px;font-size:18px;color:#eb2d22;opacity:.78;}
.item6 .item6-list li a{color:#eb2d22;}
.item6 .item6-list li a:hover{text-decoration:underline;font-weight:600;}
.item-footer{height:353px;background-image:url(item_footer_bg.jpg);background-repeat:no-repeat;background-position:center center;font-size:16px;color:#fff;}
.item-footer .size{padding-top:106px;}
.item-footer .size p{margin-bottom:20px;}