*{margin: 0;padding: 0;box-sizing: border-box;}
a{text-decoration: none;}
a:focus{outline: none;}


#tecApp{
    width: 100%;
    background: url(../images/bg.png) no-repeat top center;
    background-size: 100% auto;
}
.banner{
    width: 100%;
    padding: 5% 20% 5% 5%;
}
.teachers{
    width: 80%;
    margin: 0 auto;
}
.title{
    width: 40%;
    margin: 0 auto;
}
.banner img,.title img{
    max-width: 100%;
}
.tecBox{
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    padding-bottom: 50px;
}
.tec{
    display: block;
    width: 15%;
    margin: 10px 0.8333% 25px;
}
.photo{
    width: 100%;
    background: url(../images/tec_bg.png) no-repeat top center;
    background-size: 100% 100%;
    overflow: hidden;
    padding: 4% 5% 7%;
}
.photo .imgBox{
    width: 100%;
    height: 100%;
    /* position: relative; */
    border-radius: 5%;
}


.tec .btn{
    width: 90%;
    height: 40px;
    background: url(../images/tec_btn.png) no-repeat top center;
    background-size: 100% 100%;
    margin: 0 auto;
    text-align: center;
    line-height: 40px;
    color: #FFF;
    letter-spacing: 0.5em;
    font-size: 18px;
}
.fixedBox{
    width: 9%;
    position: fixed;
    right: 0.5%;
    bottom: 1%;
    background: url(../images/fixed.png) no-repeat top center;
    background-size: cover;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    padding-bottom: 1.65%;
}
.fixedBox a{
    display: block;
    width: 100%;
    height: 8%;
    margin-top: 10%;
}
.mBtnBox{
    display: none;
}


@media screen and (max-width:1200px) {
    .banner {
        padding: 5% 15% 5% 5%;
    }
    .teachers {
        width: 95%;
    }
    .teachers .xm:not(:first-of-type){
        display: none;
    }
    .title {
        width: 70%;
    }
    .tec {
        display: block;
        width: 33%;
        margin: 10px 0.1666% 25px;
    }
    .tec .btn{
        height: 30px;
        line-height: 30px;
        font-size: 14px;
        border-radius: 15px;
    }
    .mBtnBox{
        display: flex;
        width: 95%;
        margin: 15px;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .mBtnBox .szxm{
        width: 30%;
        height: 40px;
        line-height: 40px;
        text-align: center;
        background: #ff787e;
        color: #FFF;
        margin-bottom: 10px;
        font-size: 14px;
        border-radius: 20px;
    }
    .mBtnBox .szxm.hot{
        background-image: linear-gradient(to bottom, #1c0005, #b31148);
    }
    .fixedBox{
        display: none;
    }
}