body{
    position: relative;
}

.banner{
    position: relative;
    padding-top: 31.25%;
}
.banner  .txt{
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    padding: 80px 0 80px;
}
.banner  .txt.pad0{
    padding: 80px 0 0;
}
.banner  .txt .txtBox{
	position: relative;
	height: 100%;
}
.banner .txt .txtBox div{
	width: 1200px;
	min-width: 1200px;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    z-index: 9;
	text-align: center;
}
.banner .txt .txtBox div b{
	font-size: 80px;
    color: #FFF;
    line-height: 94px;
    letter-spacing: 3px;
}
.banner  .txt p{
	font-size: 16px;
	line-height: 30px;
	text-align: center;
	padding: 18px 50px 40px ;
	color: #fff;
}
.banner img{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.banner  .txt .txtBox div{
	text-align: center;
	background: url('../images/2021en-border.png') no-repeat;
	background-size: 100% auto;
	background-position: center bottom;
}
section{
    position: relative;
    min-width: 1200px;
    background: url('../images/2021en-tg-mb.png') no-repeat;
    background-size: 100%;
    background-position: left -75px;
    top: -83px;
    margin-bottom: -83px;
}
section .min{
	width: 1200px;
    margin:auto;
    padding-bottom:80px;
}
.box1{
    margin-bottom: 100px;
}
.box1 li{
    float: left;
    width: 280px;
    height: 320px;
    background: #FFFFFF;
    box-shadow: 0px 5px 15px 0px rgba(0, 0, 0, 0.05);
}
.box1 li:not(:last-child){
    margin-right: 26px;
}
.box1 li .top-p{
    display: flex;
    align-items: center;
    justify-content: center;
    text-align:center;
    font-size: 24px;
    font-family: 'Roboto-Medium';
    font-weight: 500;
    color: #FFFFFF;
    height: 100px;
}
.box1 li:nth-child(1) .top-p{
    background: #3871C0;
}
.box1 li:nth-child(2) .top-p{
    background: #E5BD73;
}
.box1 li:nth-child(3) .top-p{
    background: #9C7ECF;
}
.box1 li:nth-child(4) .top-p{
    background: #63A4F3;
}
.box1 li div{
    padding: 20px 0 0 0px;
}
.box1 li div p{
    font-size: 18px;
    font-family: 'Roboto-Medium';
    font-weight: 500;
    padding-left: 50px;
    line-height: 30px;
    margin-bottom: 20px;
    background: url('../images/2021en-xdot.png') no-repeat;
    background-size: 12px 12px;
    background-position: 30px 9px;
}
.box2 b{
    font-size: 48px;
    font-family: 'Roboto-Medium';
    font-weight: 500;
    color: #1C1C1C;
    line-height: 57px;
}
.box2 ul{
    margin-top: 70px;
}
.box2 ul li span{
    font-size: 24px;
    font-family: 'PingFangSC-Medium, PingFang SC';
    font-weight: 500;
    color: #1D407E;
    line-height: 33px;
}
.box2 li {
    
}
.box2 li:not(:last-child){
    margin-bottom:50px;
}
.box2 li div{
    margin-top: 20px;
    background: #FFFFFF;
    border-radius: 4px;
    border: 1px dashed #1B3E87;
    padding: 20px;
}
.box2 li p{
    font-size: 16px;
    color: #1C1C1C;
    padding-left: 20px;
    line-height: 40px;
    background: url('../images/2021en-xdot.png') no-repeat;
    background-size: 12px 12px;
    background-position: left 14px;
}
@media screen and (max-width: 1700px){
    .banner .txt .txtBox div{
		width: 920px;
		min-width: 920px;
        background-size: 100% 70%;
    }
	.banner .txt .txtBox div b{
		font-size: 60px;
		line-height: 60px;
	}
	.banner .txt .txtBox div p{
		padding: 15px 30px 20px;
	}
	.banner .txt p{
		font-size: 14px;
    }
    section{
        top: -60px;
        margin-bottom: -60px;
        background-position: left -50px;
    }
    section .min{
        width: 920px;
    }
    .box2 b{
        font-size:35px;
    }
    .box2 ul li span{
        font-size: 20px;
    }
    .box1 li{
        width: 210px;
    }
    .box1 li .top-p{
        font-size: 19px;
    }
    .box1 li div p{
        padding-left: 40px;
        font-size: 15px;
        line-height: 26px;
        background-position: 20px 9px;
    }
    .box2 li p{
        font-size: 14px;
    }
}