/* reset css */
body,html{
    padding: 0;
    margin: 0;
    font-size: 12px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}
ul,li{
    list-style: none;
    padding: 0;
    margin: 0;
}
a{
    color:#000;
    text-decoration: none;
}

.clear{
    clear:both;
}
.container{
    width: 1200px;
    margin: 0 auto;
}

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

header{
    background-color: #000;
    padding: 40px;
}

.logo{
    width: 200px;
    float: left;
}
.logo img{
    width: 100%;
}

header ul{
    float: right;
    padding: 7px 0;
}
header ul li{
    float: left;
    margin: 5px 15px;
}
header ul li a{
    color:#fff;
    padding: 10px 15px;
    font-size: 14px;
    border-radius: 10px;
}

header ul li a:hover,
header ul li.actived a{
    color:#000;
    background-color: #fff;
    font-weight: bold;
    
}

#menucheck{
    display: none;

}

/* banner */
.banner{
    width: 100%;
    height: 500px;
    background: url('../img/bigbg.jpg');
}
.main-text{
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    flex-direction: column;
    background-color: rgba(0,0,0,0.6);
}
.main-text h1{
    color:#fff;
    font-size:80px;
    margin-top: 0;
}

.main-text span{
    color:#fff;
}


.title{
    font-size: 28px;
    font-weight: bold;
    text-align: center;
    padding: 20px 0;
}

.title::after{
    content:'';
    background: #000;
    width: 120px;
    height: 2px;
    display: block;
    margin: 20px auto;
}



.concat{
    background: #f5f5f5;
}
.qrcode{
    float: left;
    margin-right: 10px;
}

.qrcode .center{
    margin: 10px;
}

.info-box{
    float: left;
}
.line{
    line-height: 2;
    font-size: 14px;
}
.line .title-small{
    width: 50px;
    display: inline-block;
}

.phone{
    float: right;
    line-height: 3;
}
.phone span{
    font-size: 30px;
}

footer{
    background: #000;
    color: #fff;
    padding: 20px 0;
}

/* 768 992 1200 1920*/
/* 768 小于等于768 */
@media screen and (max-width:768px){
    /* body{
        background-color: red;
    } */
    header{
        padding: 10px;
    }
    .container{
        width:100%;
    }
    .logo{
        width:100px;
    }

    .container ul{
        display: none;
    }
    
    #menucheck:checked+ul{
        display: block;
        position: absolute;
        right: 0;
        top: 50px;
        background-color: #000;
        padding: 10px;
        width: 100px;
    }
    header ul li{
        margin: 3px 0;
        width: 100%;
    }

    header ul li a{
        padding: 5px 0;
        display: block;
        width: 100%;
        text-align: center;
    }

    .menu-icon{
        float: right;
    }
    .menu-icon em{
        width: 25px;
        height: 3px;
        background-color: #fff;
        display: block;
        border-radius: 10px;
        margin: 5px 0;
    }

    /* banner海报图 */
    .banner{
        height: 300px;
    }
    .main-text h1{
        font-size: 30px;
    }
    .main-text span {
        text-align: center;
        padding: 20px;
    }

    .concat .phone{
        float: left;
    }

    .concat .title+div{
        padding: 20px;
    }

   

    
}

/* 大于等于768 小于等于992 */
@media screen and (min-width:768px) and (max-width:992px){
    /* body{
        background-color: green;
    } */
    header{
        padding: 20px 30px;
    }
    .container{
        width: 700px;
    }

    .banner{
        height: 400px;
    }
    .main-text h1 {
        font-size:60px;
    }

    .main-text span {
        width: 650px;
        text-align: center;
        line-height: 1.5;
    }
    .phone{
        float: left;
    }
}

/* 大于等于992 小于等于1200 */
@media screen and (min-width:992px) and (max-width:1200px){
    .container {
        width: 912px;
    }

    .main-text h1 {
        font-size:70px;
    }

    .main-text span {
        width: 900px;
        text-align: center;
        line-height: 1.5;
    }
    
}

@media screen and (min-width:1200px) and (max-width:1280px){
    .container {
        width: 1100px;
    }
}
/* @media screen and (min-width:1200px){
    
} */