body, h1, h2, h3, h4, h5, h6, p, blockquote, dl, dt, dd, ul, ol, li, form, fieldset, legend, button, input, textarea, th, td {
    margin: 0;padding: 0;}
html {overflow-y: scroll;overflow-x: hidden;}
html, body {font-size: 16px;color: #333;font-family: "SourceHanSansCN",arial,"Microsoft Yahei","Helvetica Neue",Helvetica,Arial,sans-serif;}
a {color: #333;text-decoration: none;transition: all 0.5s; -moz-transition: all 0.5s; -webkit-transition: all 0.5s; -o-transition: all 0.5s;}
a:hover {color: #163f77;text-decoration: none;}
img {border: 0 none; max-width: 100%;}
ol, ul, li {list-style: none;}
div, ul, li {margin: 0px;padding: 0px;list-style-type: none;}
input[type="submit"], input[type="reset"] {cursor: pointer;}
textarea{font-family: "SourceHanSansCN",arial,"Microsoft Yahei","Helvetica Neue",Helvetica,Arial,sans-serif;}
.clear {clear: both;}
.fl {float: left;}
.fr {float: right;}
.ov {overflow: hidden;}
input, textarea, select {outline: none;}
i,em{font-style: normal;}
h1,h2,h3,h4,b{font-weight: normal;}
@media (min-width: 1500px){
    html, body{font-size: 16px;}
}
@media (min-width: 991px) and (max-width: 1500px){
    html, body{font-size: 15px;}
}
@media (min-width: 768px) and (max-width: 991px){
    html, body{font-size: 14px;}
}
@media (max-width: 767px){
    html, body{font-size: 14px;}
}
@font-face{
    font-family: 'SourceHanSansCN'; 
    src:url('../fonts/SourceHanSansCN.eot');
    src:url('../fonts/SourceHanSansCN.woff') format('woff'),
        url('../fonts/SourceHanSansCN.ttf') format('truetype'),
        url('../fonts/SourceHanSansCN.svg') format('svg');
}





.middle{display: table-cell; vertical-align: middle; width: 1000px;}

.navbar{background: #fff; padding:0px; border-bottom: 1px #f7f7f7 solid;}
.navbar-brand{margin-right: 0px; font-size: 0px;}
.navbar-toggler{background: url(../images/menu.png) center center no-repeat; background-size: 100%;}
.navbar-nav .nav-item{position: relative;}
.navbar-nav .nav-item .nav-link{line-height: 3; position: relative; padding: 0px;}
.navbar-nav .nav-item:hover,.navbar-nav .nav-item.active{background: #163f77;}
.navbar-nav .nav-item:hover .nav-link,.navbar-nav .nav-item.active .nav-link{color: #fff;}
.navbar-nav .nav-item .nav-link:after{content: ""; display: inline-table; position: absolute; bottom: 0px; left: 50%; background: url(../images/shouye_10.png) center bottom no-repeat; width: 12px; height: 4px; transform: translate(-50%,0); display: none;}
.navbar-nav .nav-item:hover .nav-link:after{display: block;}

.navbar-nav .nav-item span{padding: 10px 0px; border:2px rgba(255,255,255,0) solid;}
.dropdown-menu{text-align: center; line-height: 2; background:#fff; border:0px #fff solid; border-top:2px #163f77 solid; padding: 0px;}
.dropdown-menu a{border-bottom: 1px #eee solid; display: block; padding: 5px 0px;}

.navbar .mobile{border-left: 2px #cccccc solid;}
.navbar .mobile div{font-weight: bold;  border-radius: 35px; display: inline-table; line-height: 2;}
.navbar .mobile div span{display: inline-table;padding-left: 40px; background: url(../images/index_09.png) center left no-repeat; }
.navbar .search{background: #163f77;}
.navbar .search span{width: 100%; height:100%; display: block; background: url(../images/index_06.png) center center no-repeat;}

@media (min-width: 1800px){
    .navbar,.header_height{height: 100px;}
    .main_ban .word{padding-top: 100px;}
    .navbar-brand{margin-left: 2%;}
    .navbar-brand img{width: 435px;}
    .navbar-nav{margin-left: 40px;}
    .navbar-nav .nav-item{padding: 0px 20px; margin:0px 20px; line-height: 100px;}
    .navbar .mobile{line-height: 100px; padding: 0px 25px;}
    .navbar .mobile div{font-size: 18px;}
    .navbar .search{width: 100px;}
}
@media (min-width: 1500px) and (max-width: 1799px){
    .navbar,.header_height{height: 90px;}
    .main_ban .word{padding-top: 90px;}
    .navbar-brand{margin-left: 2%;}
    .navbar-brand img{width: 380px;}
    .navbar-nav{margin-left: 40px;}
    .navbar-nav .nav-item{padding: 0px 14px; margin:0px 12px; line-height: 90px;}
    .navbar .mobile{line-height: 90px; padding: 0px 20px;}
    .navbar .mobile div{font-size: 16px;}
    .navbar .search{width: 80px;}
}
@media (min-width: 1200px) and (max-width: 1499px){
    .navbar,.header_height{height: 80px;}
    .main_ban .word{padding-top: 80px;}
    .navbar-brand{margin-left: 2%;}
    .navbar-brand img{width: 320px;}
    .navbar-nav{margin-left: 35px;}
    .navbar-nav .nav-item{padding: 0px 6px; line-height: 80px;}
    .navbar .mobile{line-height: 80px; padding: 0px 15px;}
    .navbar .mobile div{font-size: 15px;}
    .navbar .search{width: 80px;}
}
@media (min-width: 992px) and (max-width: 1199px){
    .navbar,.header_height{height: 72px;}
    .main_ban .word{padding-top: 72px;}
    .navbar-brand{margin-left: 2%;}
    .navbar-brand img{width: 240px}
    .navbar-nav{margin-left: 30px;}
    .navbar-nav .nav-item{padding: 0px 6px; line-height: 72px;}
    .navbar .mobile{line-height: 72px; padding: 0px 12px;}
    .navbar .mobile div{font-size: 15px;}
    .navbar .search{width: 70px;}
}
@media (max-width: 991px){
    .header_height{height: 50px;}
    .navbar-collapse{background: rgba(255,255,255,1); padding: 2em 4%; position: fixed; left: 0px; width: 100%;}
    .navbar-nav .nav-item span{display: inline-table; width: 24px;height: 20px; background: url(../images/jiafff.png) center center no-repeat; background-size: 100% 100%;   position: absolute;  right: 2%; top: 18px; transform: translate(0,-50%);}
    .navbar-nav .nav-item a{border-bottom: 1px #eee solid; }
    .navbar-toggler{padding: 0.25rem 0.25rem;}
    .navbar .mobile{padding-top: 0.8em;}
    .navbar .mobile div{font-size: 18px; padding: 3px 10px;}
}
@media (max-width: 991px){
    .navbar-expand-lg>.container{padding:0px 2%;}
    .navbar-brand{padding: 8px 0px; max-width: 75%;}
    .navbar-brand img{max-height: 33px;}
    .navbar-collapse{ top: 50px;}
    .navbar-nav .nav-item .nav-link{padding: 0px 5%;}
}
@media (max-width: 767px){
    .navbar-brand{padding: 14px 0px;}
}
@media (min-width: 992px){
    .navbar .container{width: 100%; padding: 0px; max-width: 100%;}
    .navbar-collapse{float: right;}
    .navbar-nav .nav-item .nav-link{ display: inline-table;}
    .dropdown-menu{left: 50%; transform: translate(-50%,0); }
    .navbar-nav .nav-item:hover .dropdown-menu{display: block;}
}



.search_bg{background: rgba(0,0,0,0.8); position: fixed; top: 0px; left: 0px; width: 100%; height: 100%; z-index: 999999; display: none;}
.search_alert{background: #fff; position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);}
.search_alert input{float: left;}
.search_alert input.txt{background: none; border:0px #eee solid; text-indent: 10px; }
.search_alert .sub{text-align: center; background:url(../images/indexfff_06.png) center center no-repeat #10387d; border:1px #10387d solid; color: #fff; text-indent: -999px; border-radius: 0px; width: 80px;}
.search_bg a.close{position: absolute; right: 5%; top: 5%;  display: inline-table; background: url(../images/close.png) center center no-repeat; background-size: 100%; }


@media (min-width: 1500px){
    .search_alert{width: 600px;}
    .search_alert input,.search_alert .sub{height: 75px;font-size: 20px;}
    .search_bg a.close{width: 50px; height: 50px;}
}
@media (min-width: 1200px) and (max-width: 1499px){
    .search_alert{width: 500px;}
    .search_alert input,.search_alert .sub{height: 70px;font-size: 18px;}
    .search_bg a.close{width: 50px; height: 50px;}
}
@media (min-width: 992px) and (max-width: 1199px){
    .search_alert{width: 400px;}
    .search_alert input,.search_alert .sub{height: 70px;font-size: 16px;}
    .search_bg a.close{width: 50px; height: 50px;}
}
@media (min-width: 768px) and (max-width: 991px){
    .search_alert{width: 300px;}
    .search_alert input,.search_alert .sub{height: 70px;font-size: 15px;}
    .search_bg a.close{width: 50px; height: 50px;}
}
@media (max-width: 768px){
    .search_alert{width: 80%;}
    .search_alert input,.search_alert .sub{height: 50px;font-size: 1.1em;}
    .search_bg a.close{width: 50px; height: 50px;}
}



.footer{background: url(../images/indexbg_11.jpg) center center no-repeat; color: #fff; background-size:cover;}
.footer a{color: #fff;}
.foot_nav{border-bottom: 2px rgba(255,255,255,0.4) solid;display: flex;justify-content: space-between; align-items: center;}
.foot_nav a{display: inline-table;}
.foot_top h3{line-height: 2;}
.foot_contact p{line-height: 2.6; padding-left: 30px;}
.foot_contact .phone{background: url(../images/index_72.png) center left no-repeat;}
.foot_contact .email{background: url(../images/index_76.png) center left no-repeat;}
.foot_contact .address{background: url(../images/index_79.png) top 10px left no-repeat;}
.foot_erweima{text-align:center; line-height: 2;}
.foot_erweima .img{display: inline-table;}
.foot_bot{background: rgba(0,0,0,0.5); text-align: center; line-height: 2;}
.foot_bot span{display: inline-table;}

@media (min-width: 1500px){
    .foot_nav{line-height: 100px;}
    .foot_top{padding: 90px 0px;}
    .foot_logo img{max-width: 80%;} 
    .foot_top h3{font-size: 24px; margin-bottom: 10px;}
    .foot_logo{width: 30%; padding-top: 40px;}
    .foot_contact{width: 40%; padding: 26px 5%;}
    .foot_erweima{width: 30%;}
    .foot_erweima .img{max-width: 178px;}
    .foot_bot{padding: 20px 0px;}
}
@media (min-width: 1200px) and (max-width: 1499px){
    .foot_nav{line-height: 90px;}
    .foot_top{padding: 70px 0px;}
    .foot_logo{}
    .foot_logo img{max-width: 80%;} 
    .foot_top h3{font-size: 22px; margin-bottom: 10px;}
    .foot_logo{width: 30%; padding-top: 35px;}
    .foot_contact{width: 40%; padding: 20px 5%;}
    .foot_erweima{width: 30%;}
    .foot_erweima .img{max-width: 160px;}
    .foot_bot{padding: 16px 0px;}
}
@media (min-width: 992px) and (max-width: 1199px){
    .foot_nav{line-height: 80px;}
    .foot_top{padding: 50px 0px;}
    .foot_logo{}
    .foot_logo img{max-width: 80%;} 
    .foot_top h3{font-size: 20px; margin-bottom: 10px;}
    .foot_logo{width: 30%; padding-top: 40px;}
    .foot_contact{width: 40%; padding: 16px 3%;}
    .foot_erweima{width: 30%;}
    .foot_erweima .img{max-width: 140px;}
    .foot_bot{padding: 12px 0px;}
}
@media (min-width: 768px) and (max-width: 991px){
    .foot_nav{line-height: 70px;}
    .foot_top{padding: 30px 0px;}
    .foot_logo{padding-top: 20px;}
    .foot_logo img{max-width: 80%;} 
    .foot_top h3{font-size: 18px; margin-bottom: 10px;}
    .foot_logo{width: 24%;}
    .foot_contact{width: 48%; padding: 0px 3%;}
    .foot_erweima{width: 28%;}
    .foot_erweima .img{float: right; max-width: 140px;}
    .foot_bot{padding: 10px 0px;}
}
@media (max-width: 767px) {
    .foot_nav{display: none;}
    .foot_top{padding: 1.6em 0px;}
    .foot_logo{text-align: center; display: none;}
    .foot_logo img{max-width: 50%;} 
    .foot_top h3{font-size: 18px; margin-bottom: 10px;}
    .foot_contact{}
    .foot_erweima{margin-top: 10px;}
    .foot_erweima .img{max-width: 50%; padding: 0px 8%;}
    .foot_erweima .img{}
    .foot_bot{padding: 0.6em 2%;}
}
@media (min-width: 768px){
    .foot_top li{float: left;}
    .foot_contact{border-left:1px #fff solid; border-right:1px #fff solid;}
    .foot_bot .left{float: left;}
    .foot_bot .left span{margin-right: 20px;}
    .foot_bot .right{float: right;}
}











@media (min-width: 1500px){
    .margin_tb{margin: 90px 0px;}
    .margin_t{margin-top: 90px;}
    .margin_b{margin-bottom: 90px;}

    .padding_tb{padding: 90px 0px;}
    .padding_t{padding-top: 90px;}
    .padding_b{padding-bottom: 90px;}

    .margin_stb{margin: 60px 0px;}
    .margin_st{margin-top: 60px;}
    .margin_sb{margin-bottom: 60px;}

    .padding_stb{padding: 60px 0px;}
    .padding_st{padding-top: 60px;}
    .padding_sb{padding-bottom: 60px;}
}
@media (min-width: 1200px) and (max-width: 1499px){
    .margin_tb{margin: 75px 0px;}
    .margin_t{margin-top: 75px;}
    .margin_b{margin-bottom: 75px;}

    .padding_tb{padding: 75px 0px;}
    .padding_t{padding-top: 75px;}
    .padding_b{padding-bottom: 75px;}

    .margin_stb{margin: 50px 0px;}
    .margin_st{margin-top: 50px;}
    .margin_sb{margin-bottom: 50px;}

    .padding_stb{padding: 50px 0px;}
    .padding_st{padding-top: 50px;}
    .padding_sb{padding-bottom: 50px;}
}
@media (min-width: 992px) and (max-width: 1199px){
    .margin_tb{margin: 60px 0px;}
    .margin_t{margin-top: 60px;}
    .margin_b{margin-bottom: 60px;}

    .padding_tb{padding: 60px 0px;}
    .padding_t{padding-top: 60px;}
    .padding_b{padding-bottom: 60px;}

    .margin_stb{margin: 40px 0px;}
    .margin_st{margin-top: 40px;}
    .margin_sb{margin-bottom: 40px;}

    .padding_stb{padding: 40px 0px;}
    .padding_st{padding-top: 40px;}
    .padding_sb{padding-bottom: 40px;}
}
@media (min-width: 768px) and (max-width: 991px){
    .margin_tb{margin: 50px 0px;}
    .margin_t{margin-top: 50px;}
    .margin_b{margin-bottom: 50px;}

    .padding_tb{padding: 50px 0px;}
    .padding_t{padding-top: 50px;}
    .padding_b{padding-bottom: 50px;}

    .margin_stb{margin: 30px 0px;}
    .margin_st{margin-top: 30px;}
    .margin_sb{margin-bottom: 30px;}

    .padding_stb{padding: 30px 0px;}
    .padding_st{padding-top: 30px;}
    .padding_sb{padding-bottom: 30px;}
}
@media (max-width: 767px) {
    .margin_tb{margin: 1.6rem 0px;}
    .margin_t{margin-top: 1.6rem;}
    .margin_b{margin-bottom: 1.6rem;}

    .padding_tb{padding: 1.6rem 0px;}
    .padding_t{padding-top: 1.6rem;}
    .padding_b{padding-bottom: 1.6rem;}

    .margin_stb{margin: 1rem 0px;}
    .margin_st{margin-top: 1rem;}
    .margin_sb{margin-bottom: 1rem;}

    .padding_stb{padding: 1rem 0px;}
    .padding_st{padding-top: 1rem;}
    .padding_sb{padding-bottom: 1rem;}
}
@media (min-width: 768px){
    
}