* {
    margin: 0;
    padding: 0;
    font-family: Helvetica Neue, Helvetica, Arial, PingFang SC, Hiragino Sans GB, WenQuanYi Micro Hei, Microsoft Yahei, sans-serif;
}

img {
    border: 0
}

a{
    text-decoration: none;
}
.clear_float {
    clear: both;
}

#nav a {
    text-decoration: none;
    font-weight: bold;
    color: black;
}

#nav a:link {
    color: black;
}

#nav a:visited {
    color: black;
}

#nav a:hover {
    color: black;
}

#nav a:active {
    color: black;
}

li {
    list-style-type: none;
}

#header_wrap {
    width: 100%;
    height: 100px;
}

#header {
    width: 1140px;
    height: 100px;
    margin: 0 auto;
}

.logo {
    display: block;
    float: left;
    width: 251px;
    height: 50px;
    margin-top: 25px;
}

.Applist{
    width: 1140px;
    margin: 0 auto;
    display: flex;
    flex-wrap:wrap;
}
.Applist .lis{
    width: 94px;
    margin: 0 10px 20px;
}
.Applist img{
    width: 94px;
    height: 94px;
}
.Applist p{
    text-align: center;
    font-size: 14px;
}

#nav {
    float: right;
    width: 600px;
    height: 100px;
    line-height: 100px;
    text-align: right;
    position: relative;
}

#nav li {
    display: inline-block;
    padding: 0px 15px;
}

.nav-actived {
    padding-bottom: 10px;
    border-bottom: 3px solid orangered;
}

#footer_wrap {
    width: 100%;
    height: 330px;
    background: #353535;
    position: relative;
}

.footer_logo img {
    width: 55px;
    height: 55px;
    position: absolute;
    top: -27.5px;
    left: 50%;
    margin-left: -27.5px;
}

#footer {
    width: 1000px;
    margin: 0 auto;
    padding-top: 150px;
}

#footer ul {
    width: 600px;
    height: 80px;
    background: #353535;
    margin: 0 auto;
}

#footer li {
    display: inline-block;
    height: 80px;
    margin-left: 80px;
}

#footer .item_wrap {
    width: 50px;
    height: 80px;
    position: relative;
}

.footer_item {
    display: inline-block;
    width: 50px;
    height: 50px;
}

#footer span {
    font-size: 12px;
    color: white;
}

#footer_copyright {
    width: 600px;
    height: 30px;
    background: #353535;
    margin: 0 auto;
    text-align: center;
    color: #646464;
    margin-top: 30px;
    font-size: 10px;
}

.box {
    height: 40px;
    width: 1140px;
    display: flex;
    margin: 0 auto;
    justify-content: space-between;
    align-items: center;
}

.line {
    height: 1px;
    flex-grow: 1;
    background-color: lightgray;
}

.text {
    font-size: 23px;
    margin: 0 20px;
}

.big_title {
    color: #FF6501;
}

.line_container {
    width: 1000px;
    margin: 10px auto;
}

h3.line_title {
    color: #F2AE11;
    font-size: 1.3em;
    margin-top: 2em;
    margin-bottom: 2em;
    text-align: center;
    font-weight: 500;
    line-height: 1.1;
}

h3.line_title span {
    display: block;
    /*设置为块级元素会独占一行形成上下居中的效果*/
    font-size: 1em;
    position: relative;
    /*定位横线（当横线的父元素）*/
}

h3.line_title span:before,
h3.line_title span:after {
    content: '';
    /*CSS伪类用法*/
    position: absolute;
    /*定位背景横线的位置*/
    top: 52%;
    background: lightgray;
    /*宽和高做出来的背景横线*/
    width: 35%;
    height: 1px;
}

h3.line_title span:before {
    left: 0;
    /*调整背景横线的左右距离*/
}

h3.line_title span:after {
    right: 0;
}

#footer_copyright a:link {
    color: gray;
}

#footer_copyright a:visited {
    color: gray;
}

#footer_copyright a:hover {
    color: gray;
}

#footer_copyright a:active {
    color: gray;
}