.header{
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.header_menu{
    height: 50px;
}
.header_menu li{
    float: left;
    padding-right: 30px;
    height: 50px;
    line-height: 50px;
    position: relative;
}
.header_menu li a{
    width: 100%;
    height: 35px;
    display: inline-block;
    color: #000;
    font-size: 16px;
}
.header_menu li>a:hover{
    color: #dd0000;
    border-top: 2px solid #dd0000;
}
.cur{
    color: #dd0000!important;
    border-top: 2px solid #dd0000;
}
.top_left{
    text-align: center;
}
.top_left P:nth-of-type(1){
    font-size: 26px;
}
.top_left P:nth-of-type(2){
    font-size: 12px;
}
.top_right{
    display: flex;
}
.top_right img{
    width: 43px;
    height: 43px;
    margin-right: 10px;
}
.top_right p:nth-of-type(1){
    font-size: 16px;
}
.top_right p:nth-of-type(2){
    color: #dd0000;
    font-size: 20px;
}
.carousel-inner .item{
    width: 100%;
}
.carousel-inner .item img{
    width: 100%;
    height: 100%;
}
.font_bold{
    font-weight: bold;
    font-size: 20px;
    padding-bottom: 12px;
}
.down_menu{
    position: absolute;
    top: 50px;
    left: -14px;
    background: #f9f9f9;
    opacity: 0.8;
    width: 95px;
    z-index: 100;
    display: none;
}
.down_menu p{
    line-height: 35px;
    text-align: center;
}
.down_menu p a{
    font-size: 15px;
}
.down_menu p a:hover{
    color: #dd0000;
}
nav{
    position: relative;
}
.flow_window{
    position: fixed;
    right: 0;
    top: 250px;
    z-index: 100;
}