*{
    padding: 0;
    margin: 0;
}
.homeback{
    width: 100%;
    height: 85vh;
    background: url('../img/homeback.jpg') 50% 50%;
    background-size: cover;
}
.mengban{
    height: 100%;
    width: 100%;
    background: rgba(0, 0, 0, 0.5);
}
.bartop{
    height: 70px;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}
.logo{
    flex: 1;
    height: 50px;
    margin-left: 20PX;
}
.logo>img{
    height: 100%;
}
.menubar{
    flex: 1;
    height: 40px;
}
.bighead{
    color: #fff;
    width:600px;
    margin:0 auto;
    font-size: 5em;
    font-weight: 800;
    line-height: 1.2em;
    text-align: center;
    margin-bottom:30px;
    margin-top:100px;
}
.smallhead{
    color: #fff;
    font-size: 1.35em;
    font-weight: 400;
    line-height: 1.3em;
    width:80%;
    text-align: center;
    margin:0 auto;
}
.becomebar{
    display: flex;
    justify-content: space-between;
    height: 124px;
    width: 100%;
}
.left{
    flex:1;
    height: 100%;
    color: white;
    background-color: #f99d1c;
    display: flex;
    justify-content: flex-start;
    align-content: center;
    padding-left: 20px;
    flex-wrap: wrap;
}

.right{
    flex:1;
    height: 100%;
    color: white;
    background-color: #f37321;
    display: flex;
    justify-content: flex-start;
    align-content: center;
    padding-left: 20px;
    flex-wrap: wrap;
}
.bar_ti{
    width: 100%;
    height: auto;
    font-weight: 700;
    margin-bottom: 10px;
    font-size: 30px;
}
.bar_con{
    width: 100%;
    height: auto;
    font-size: 22px;
}
.whitezome{
    width: 1380px;
    padding: 100px 0;
    margin: 0 auto;
}
.squarebox{
    width: 500px;
    height: 440px;
    margin-top: 50px;
}
.picbox{
    height:220px;
    width:100%;
    background: url('../img/businessman-with-mobile-devices-P7DZFLK-final-1.jpg');
    background-size: 100% 100%;
}
.botmbox{
    height: 220px;
    width: 100%;
    background-color: #f99d1c;
    color: white;
    padding: 20px;
    box-sizing: border-box;

}
.botmbox>h1{
    color: #fff;
    font-size: 1.8em;
    font-weight: 800;
    margin-bottom: 14px;
}
.botmbox>p{
    color: #fff;
    font-size: 0.8em;
    font-weight: 400;
    margin-bottom: 14px;

}
.botmbox>div{
    color: #fff;
    font-size: 1.1em;
    font-weight: 400;
    line-height: 1.2em;
}
.tile{
    color: #202020;
    font-size: 4.2em;
    font-weight: 800;
}
.tile2{
    color: #202020;
    font-size: 3.5em;
    font-weight: 800;
}
.flexboxs{
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-top: 50px;
}
.itembox{
    flex:1;
    height:auto;
}
.item_title{
    color: #202020;
    font-size: 2em;
    font-weight: 800;
}
.item_comt{
    color: #202020;
    font-size: 1.3em;
    font-weight: 400;
    /* line-height: 1; */
}
.deicbox{
    height: 492px;
    width: 100%;
    background: url('../img/businessman-with-mobile-devices-P7DZFLK-final-1.jpg') 100% 100%;
    background-size: 120% 100%;
}
.mb_3{
    height: 100%;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
}
.mb_title{
    width: 480px;
    color: #fff;
    font-size: 2em;
    font-weight: 800;
    line-height: 1.2em;
    margin-bottom: 20px;
}
.mb_com{
    width: 480px;
    color: #fff;
    font-size: 1.3em;
    font-weight: 400;
    line-height: 1.2em;
}