@media screen  and (max-width: 800px){
    .min{
        width: 100%;
        max-width: none;
        min-width:inherit;
    }
    #header{
        height: 50px;
    }
    #header .logo{margin-left: 20px;width: 30%;padding: 5px 0;}
    #header .btn{
        font-size: 14px;
        width: 50px;
        line-height: 50px;
    }
    #header .nav_list li{float: none;}
    #header #mobile_nav_btn{display: block;}
    #header .nav_list{display: block;  padding-top: 50px;}
    #header .nav_list a{
        font-size: 14px;
        line-height: 40px;
    }
    #header .nav_txtbox{
        display: block;
        border-top: 1px solid #ccc;
        border-bottom: 1px solid #ccc;
    }
    #header .nav_txtbox p{
        display: block;
        width: 50%;
        padding: 10px;
        font-size: 14px;
        line-height: 25px;
        color: #fff;
    }
    #header .nav_txtbox img{
        width: 120px;
        height: 120px;
        margin: 10px;
    }

    #footer{
        margin-top: 0;
    }
    #footer .fr{display: none}
    #footer p{
        font-size: 10px;
        line-height: 20px;
        padding: 0 10px;
    }
    #footer .copy p:nth-child(1){
        display: none;
    }
}
#title{
    width: 100%;
    height: 294px;
    margin-top: 50px;
    background: url("https://img0.baidu.com/it/u=3157835075,1368178330&fm=253&fmt=auto&app=138&f=JPEG?w=1200&h=294") no-repeat;
    background-size: auto 100%;
    background-position: top center;
    text-align: center;
    color: #000;
}
#title h1{
    font-size: 34px;
    font-weight: 400;
    padding-top: 25px;
}
#title p{
    font-size: 16px;
    padding-top: 5px;
}

#content{
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
    padding-bottom: 150px;
}
#content h2{
    font-size: 30px;
    line-height: 60px;
    margin: 20px auto;
    text-align: center;
}
#content .about p{
    text-align: left;
    font-size: 14px;
    text-indent: 28px;
    line-height: 35px;
}
#content .linian{
    font-size: 16px;
}

#content .linian dt{
    float: left;
    padding-top: 20px;
}
#content .linian dd{
    padding-left: 100px;
    padding-top: 20px;
}
#content h2:after{
    content: '';
    display: block;
    margin: 0 auto;
    position: relative;
    top: -5px;
    height: 2px;
    width: 100px;
    background: #f83a34;
}
#content .history{text-align: center}
#content .history dl{
    font-size: 16px;
    line-height: 30px;
    display: inline-block;
    border-left: 4px solid #f83a34;
    padding-bottom: 30px;
    padding-left: 50px;
    position: relative;
}
#content .history dl:after{
    content: "";
    width: 0;
    height: 0;
    border: 10px solid transparent;
    border-top-color: #f83a34;
    position: absolute;
    left: -12px;
    bottom: -19px;
}
#content .history dl dt:after{
    content: "";
    display: block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #f83a34;
    position: absolute;
    top: 10px;
    left: -58px;
}
#content .history dl dt{
    float: left;
    position: relative;
}
#content .history dl dd{
    text-align: left;
    padding-left: 80px;
}
#content .lianxi h3{
    font-size: 30px;
    font-weight: 400;
}
#content .lianxi {
    font-size: 16px;
    text-align: center;
}
#content .lianxi p{
    line-height: 30px;
}
#content .lianxi img{
width: 250px;
}