.main .download{background: url(../images/app/app-header-bg.png) no-repeat 50% 0;height: 620px;display: flex;flex-direction: column;justify-content: flex-end;}
.download .container{display: flex;justify-content: space-between;}
.download .left{width: 650px;}
.download .left h1{font-size: 34px;line-height: 53px;font-weight: 600;color: #FFFFFF;font-family: "黑体";}
.download .left p{font-size: 18px;color: #FFFFFF;line-height: 40px;margin-top: 17px;}
.download .left ul{display: flex;justify-content: space-between;align-items: center;margin-top: 40px;}
.download .left ul li{width: 197px;height: 56px;line-height: 56px;border-radius: 28px;text-align: center;background-color: #595959;box-shadow: 0px 2px 7px 0px rgba(95,74,14,0.26);display: flex;align-items: center;justify-content: flex-start;cursor: pointer;}
.download .left ul li img{width: 40px;height: 40px;display: block;margin-left: 8px;}
.download .left ul li span{font-size: 18px;color: #FFFFFF;margin-left: 15px;}

.download .right{height: 496px;}
.download .right .item{background-color: #FFFFFF;border-radius: 16px;width: 450px;height: 496px;padding: 40px 30px 30px;box-sizing: border-box;box-shadow:0px 5px 10px 7px rgba(9,26,51,0.04);display: none;}
.download .right .item h2{font-size: 26px;line-height: 40px;color: #0C2239;text-align: center;}
.download .right .item h2::before{content: "";position: absolute;left: 0;top: 50%;transform: translateY(-50%);width: 75px;height: 3px;background-color: #0C2239;}
.download .right .item h2::after{content: "";position: absolute;right: 0;top: 50%;transform: translateY(-50%);width: 75px;height: 3px;background-color: #0C2239;}
.download .right .item .img{width: 296px;height: 296px;border: 1px solid #F0F0F0;margin: 30px auto 0;}
.download .right .item .img img{width: 100%;height: 100%;display: block;}
.download .right .item p{font-size: 18px;text-align: center;color: #0C2239;line-height: 25px;margin-top: 30px;}


.course{margin-top: 100px;padding-bottom: 74px;}
.course .content{display: flex;justify-content: flex-end;margin-top: 50px;}
.course .left img{width: 158px;height: 335px;margin-right: 260px;display: block;}
.course .right{width: 560px;display: flex;flex-direction: column;justify-content: center;}
.course .right h2{font-size: 28px;line-height: 40px;color: #0C2239;font-family: "黑体";font-weight: 600;}
.course .right em{font-size: 16px;line-height: 22px; color: #D8D8D8;margin-top: 6px;}
.course ul{display: flex;justify-content: space-between;margin-top: 38px;}
.course ul li .box{width: 80px;height: 80px;display: flex;justify-content: center;align-items: center;background-color: #0C2239;border-radius: 50%;}
.course ul li p{font-size: 16px;line-height: 22px;color: #0C2239;margin-top: 10px;text-align: center;}
	
/*标题公共样式*/
.common-title{display: block;font-size: 20px;color: #0C2239;font-family: "黑体";font-weight: 600;margin-top: 10px;position: relative;width: -webkit-max-content;}
.common-title::after{content: "";position: absolute;top: 50%;right: -76px;transform: translateY(-50%);width: 100px; height: 2px;background-color: #EE6B25;}
.common-title-english{display: block; font-size: 12px;color: #EE6B25;}