#app {
    font-family: Avenir, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    overflow: hidden;
    background: #f8f8f8
}

* {
    padding: 0;
    margin: 0
}

html {
    background: #f8f8f8
}

a {
    text-decoration: none
}

li {
    list-style: none
}

.fl {
    float: left
}

.fr {
    float: right
}

.flex-row-center {
    justify-content: center
}

.flex-row-center, .flex-row-start {
    display: flex;
    flex-direction: row;
    align-items: center
}

.flex-row-start {
    justify-content: flex-start
}

.flex-row-between {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center
}

.flex-col-center {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center
}

.header {
    width: 1200px;
    height: 76px;
    margin: 0 auto
}

.logo {
    margin-top: 16px
}

.nav {
    text-align: center;
    font-size: 0;
    margin-top: 18px;
    margin-left: 40px
}

.nav a {
    display: inline-block;
    line-height: 50px;
    font-size: 18px;
    color: #333;
    margin: 0 23px
}

.nav a:hover {
    color: #0079c6;
    border-bottom: 1px solid #0079c6
}

.nav a.act {
    color: #c40001;
    border-bottom: 1px solid #c40001
}

.container {
    width: 1200px;
    margin: 18px auto 40px;
    overflow: hidden
}

.footer {
    padding: 10px 0 40px;
    overflow: hidden
}

.foot-desc {
    width: 860px;
    margin-left: 50px
}

.foot-nav {
    height: 60px;
    border-bottom: 1px solid #b2b2b2;
    font-size: 0;
    justify-content: flex-start
}

.foot-nav a {
    display: block;
    width: 130px;
    text-align: center;
    font-size: 14px;
    color: #999
}

.foot-info {
    overflow: hidden;
    margin: 15px 10px
}

.foot-info>div {
    width: 420px;
    font-size: 12px;
    color: #999;
    line-height: 30px
}

.foot-info a {
    color: #999
}

.foot-info a:hover {
    color: #00b0f0
}

.mobile-container {
    height: 800px;
    background: url(../img/bg.jpg) no-repeat;
    background-position: top center;
    overflow: hidden;
}
.sy{
    width: 1040px;
    height: 444px;
    background: #fff;
    margin: 130px auto;
    display: flex;
    justify-content: center;
    align-items: center;
    line-height: 20px;
}
.desc{
    width: 450px;
    font-size: 12px;
    color: #8e8e8e;
    margin-left: 20px;
    position: relative;
}
.desc p{
    font-size: 30px;
    color: #0079c6;
    font-weight: bold;
    margin-bottom: 18px;
    margin-top: 100px;
}
.desc::after{
    position: absolute;
    content: '';
    width: 34px;
    border-bottom: 2px solid #0079c6;
    bottom: 0;
    left: 0;
}
.wh{
    width: 1070px;
    height: 600px;
    background: #eceaea;
    margin: 130px auto;
}