html,body{
    margin: 0;
    padding: 0;
    font-size: 0;
    background-color:#f8f8f8;
    text-align: center;
    position: relative;
    font-family: 'SimHei';
}
*{
    margin: 0;
    padding: 0;
}

.clearfix:after {
    content: "\200B";
    display: block;
    height: 0;
    clear: both;
  }
#banner{
    width: 100%;
}
#loading{
    width: 100%;
    text-align: center;
}
#loading>img{
    width: 20%;
    margin-top:50%; 
}
header{
    width:100%;
    min-width: 1000px;
    background-color:rgba(0, 0, 0, .1);
    position: absolute;
    top: 0;
    z-index: 100;
    padding: 10px 0;
    -webkit-animation: appear 5s infinite;
}
#head{
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 55%;
    margin: 0 auto;
    padding: 25px 0;
    min-width: 670px;
}

#head>img{
    width:409px
}
#head>div{
    width: 45%;
    display: flex;
    justify-content: space-between;
}
#head>div a{
    display: inline-block;
    text-align: center;
    color: #ccc;
    font-size: 17px;
    font-family: 'SimHei';
    text-decoration: none;
}
#head>div a>p{
    margin: 0;
}
.dian{
    display: inline-block;
    width: 7px;
    height: 7px;
    background-color:#fff;
    border-radius: 2px;
    visibility: hidden;
}
#introduction{
    background-color: #f6f6f6;
    background-image: url(img/tuan.png)!important;
    background-size: 100% 100%;
    background-repeat: no-repeat;
}
.jianjie{
    width: 70%;
    background-color:white;
    min-width: 670px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}
.jianjie>div:nth-child(2){
    width: 100%;
}
.jianjie>div:nth-child(2)>img{
    width: 100%;
}
.CfadeInUp{
    opacity: 0;
    animation: 1s ease  forwards  alternate;
}
@-webkit-keyframes CfadeInUp
{
    from {transform: translateY(50px);}
    to {transform: translateY(0px);
        opacity:1;}
}
#profile{
    width: 100%;
    padding: 0 120px;
    box-sizing: border-box;
    text-align: center;
}
#profile-title,#join_title,#activity-title{
    width: 70%;
    min-width: 670px;
    margin: 0 auto;
    /* margin-bottom: 45px; */
    background-color:white;
    font-size: 40px;
    padding:31px 0 24px;
}
#jianjie-details{
    font-family: 'SimHei';
    padding-bottom: 35px;
}
#profile>div{
    color: #999999;
    font-family: 'SimHei';
    text-align: left;
}
#profile>div>p:nth-child(2){
    font-size: 12px;
    letter-spacing: 1px;
    color:#666666;
    line-height: 24px;
}

/* 公司活动 */
section{
    min-height:915px;
    background-image: url(img/section_bg.jpg)!important;
    background-size:cover;
    display:flex;
    flex-direction:column;
    gap:30px;
    align-items:center;

}
#join_title{
    width: 142px;
    height: 56px;
    font-size: 40px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #000000;
    background-color:transparent;
    line-height: 56px;
}
section img{
    width:70%;
}
section .contact_us{
    width:70%;
    height:360px;
    background-color:rgba(255,255,255,0.7);
    display:flex;
    flex-direction:column;
    gap:20px;
    align-items:center;
}
.contact_title{
    font-size: 40px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #000000;
    background-color:transparent;
    line-height: 56px;
}
.contact_us div{
    display:flex;
    color:#666666;
    font-size:17px;
    flex-direction:column;
    gap:6px
    line-height: 24px;
    letter-spacing: 1px;
}
.address{
    width:90%;
    background-color:white;
    font-size: 28px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #000000;
    line-height: 40px;
    padding: 5% 2%;
    box-sizing: border-box;
}
.map{
    width:100%;
    height:709px;
    background-image:url(img/address.jpg);
    background-size:cover;
    background-repeat:no-repeat;
}

.footer {
background-color: #313131;
text-align: left;
}
footer {
width: 1200px;
max-width: 1200px;
margin: 0 auto;
padding-bottom: 70px;
}
footer h2 {
font-size: 30px;
font-family: "Arial";
color: #fff;
line-height: 60px;
padding: 70px 0 20px;
border-bottom: 1px solid #4e4e4e;
margin-bottom: 30px;
}
footer .left {
width: 800px;
}
footer .left p {
font-size: 14px;
font-family: "Arial";
color: #717171;
line-height: 30px;
}