html {
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
    tap-highlight-color: transparent;
    min-width: 1200px;
}

body {
    font-family: Arial, PingFangSC-Light, PingFang SC, Microsoft YaHei;
    color: #333;
    background-color: #fff;
    font-size: 16px;
min-width: 1200px;
}

a, abbr, acronym, address, article, aside, blockquote, body, caption, code, dd, del, dfn, dialog, div, dl, dt, em, fieldset, figure, footer, form, h1, h2, h3, h4, h5, h6, header, hgroup, html, iframe, input, legend, li, nav, object, ol, p, pre, q, section, span, tbody, tfoot, thead, ul {
    margin: 0;
    padding: 0;
    tap-highlight-color: transparent
}

*, :after, :before {
    -webkit-box-sizing: border-box;
    box-sizing: border-box
}

img {
    border: 0;
    vertical-align: middle;
    max-width: 100%;
    height: auto
}

a, a:focus, a:hover {
    text-decoration: none;
    color: inherit;
    font-size: inherit
}

ul {
    list-style: none
}

label {
    min-height: 1px
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    background: inherit;
    border: 0;
    outline: 0
}

input.Wdate {
    width: 190px !important
}

button, input[type=button], input[type=reset] {
    cursor: pointer;
    border-radius: 3px
}

table {
    border-collapse: collapse;
    border-spacing: 0;
    width: 100%;
    background-color: #fff
}

colgroup {
    display: table-column-group
}

col {
    display: table-column
}

tbody, thead {
    overflow: auto;
    font-size: 12px;
    text-align: left
}

th {
    background-color: #ebecf0;
    border-bottom: 1px solid #dcdee3;
    padding: 12px 16px;
    font-weight: 400;
    color: #333;
    font-size: 12px;
    text-overflow: ellipsis
}

td {
    padding: 20px 16px;
    border-bottom: 1px solid #dcdee3
}

.float_left {
    float: left
}

.float_right {
    float: right
}

.clear_box:after {
    clear: both;
    content: "";
    display: block
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/*间距*/
.margin_right_70 {
    margin-right: 70px;
}

.margin_left_45 {
    margin-left: 45px;
}


.nav {
    position: fixed;
    z-index: 99;
    width: 100%;
    height: 80px;
    padding: 0 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
    color: white;

}
.nav.bg_white{
    color: #333;
    background-color: white;
    box-shadow: 0px 2px 8px 0px rgba(0, 0, 0, 0.2);
}
.nav.bg_white .logo{
    background: url("../images/logo_2.png") no-repeat;
}

.nav .logo {
    width: 125px;
    height: 48px;
    background: url("../images/logo.png") no-repeat;
}

.nav .logo a {
    height: 48px;
    display: block;
}
.nav .nav_list{
    height: 80px;
    line-height: 80px;
    position: relative;
    text-align:center;
}
.nav .nav_list>p{
    position: absolute;
    top: 0;
    width: 33px;
    height: 4px;
    background-color: #00FFF5;

    box-shadow: 0px 4px 14px 0px #00FFF5;
}
.nav.bg_white .nav_list>p{
    background-color: #00DDD5;
    box-shadow: 0px 4px 14px 0px rgba(0, 255, 245, 0.5);
}

.nav .nav_list>p:nth-last-child(1){
    transition: left 0.3s;
}
.nav .nav_list>p.indexModel{
    left: 36px;
}
.nav .nav_list>p.aboutModel{
    left: 141px;
}
.nav .nav_list>p.productsModel{
    left: 246px;
}
.nav .nav_list>p.newsModel{
    left: 351px;
}
.nav .nav_list>p.caseModel{
    left: 456px;
}
.nav .nav_list>p.contactModel{
    left: 561px;
}
.nav .nav_list ul {
    display: flex;
}

.nav .nav_list ul li {
    width: 105px;

}

.nav.bg_white .nav_list ul li:hover a,
.nav.bg_white .nav_list ul li a.active{
    color: #00DDD5;
}


.nav .nav_list ul li:hover a,
.nav .nav_list ul li a.active{
    color: #00FFF5;
    font-weight: bold;
}

.nav .customer {
    width: 200px;
    display: flex;
    align-items: center;
    background: url("../images/tel_icon2.png") no-repeat left;
    justify-content: space-between;
}
.nav.bg_white .customer {

    background: url("../images/tel_icon.png") no-repeat left;

}
.nav_bg{
    height: 80px;
}
.banner_box{
    height:400px ;
    background-repeat: no-repeat;
    background-position: center;

}
.footer {
    background: url("../images/footer_bg.png") no-repeat center;
    height: 400px;
    padding-top: 50px;
    font-size: 14px;
    border-bottom: 1px dashed #CFCFCF;
}

.footer .container {
    display: flex;
}

.footer .bottom_about_info {
    width: 460px;

    color: #D7D7D7;
}

.footer .bottom_about_info li:nth-child(2) {
    margin: 32px 0 10px;
}

.footer .bottom_about_info li:nth-child(4) {
    margin: 10px 0 40px;
}

.footer .bottom_about_info li:nth-child(5) p {
    width: 127px;
    height: 40px;
    background: white url("../images/qq_icon.png") no-repeat left;
    border-radius: 40px;
    line-height: 40px;
    padding-left: 53px;
    color: #333;
}
.footer .bottom_nav_info{
    color: #CFCFCF;
width: 167px;
    padding-top: 30px;
}
.footer .bottom_nav_info:nth-last-child(1){
    width: 80px;
    text-align: right;
}
.footer .bottom_nav_info li{
    margin-bottom: 18px;
}
.footer .bottom_nav_info li:nth-child(1){
    color: white;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 30px;
}

.footer_line {
    background-color: black;
    height: 50px;
    line-height: 50px;
    font-size: 14px;
    color: white;
}
.back_service{
    position: fixed;
    right: 80px;
    bottom: 100px;
}
.back_service p{
    width: 50px;
    height: 50px;

}


.back_service p:nth-child(1) a {
    display: block;
    width: 50px;
    height: 50px;
    background: url("../imgs/qq.png") no-repeat center;
    background-size: contain;
}

.back_service p:nth-child(2) {
    margin-top:20px ;
    background: url("../imgs/back_icon.png") no-repeat center;
    background-size: contain;
    cursor: pointer;
}



.pages{
    text-align: center;
    padding-top: 50px;
}
.pages span,
.pages a{
    border: 1px solid #979797;
    padding: 0 12px;
    line-height: 40px;
    font-size:15px ;
    color: #888;
    height: 40px;
    display: inline-block;
    margin: 0 8px;
    background-color: white;
}
.pages span.active{
    border: 1px solid #00DDD5;
    background-color: #00DDD5;
    color: white;
}

.friends_list select{
    width: 130px;
    height: 30px;
    background-color: white;
}
.websites{
    padding: 40px 0;
}
.websites ul{
    margin: 0 -20px;
}
.websites li{
    margin: 10px 20px;
    float: left;
}
.websites li a{
    font-size: 18px;

}
.websites li a:hover{
    color: #00DDD5;
}