#bg-1,#bg-4{background-size: cover;background-position: 50%;background-color: #999; }
#bg-1,#bg-4{background-image: url("../gywm.webp");}
.parallax-window {min-height: 400px;background: transparent;}
.about_block2 .block_box{position: absolute;top:0;left:0;background-color: #242323;color: #ffffff;width: 100%;display: -moz-box;display: -ms-flexbox;display: -webkit-flex;display: flex;height: 100%;}
.about_block2 .block_box .left{box-flex: 2;-webkit-box-flex: 2;-moz-box-flex: 2;flex:2 ;-webkit-flex: 2;position: relative;}
.about_block2 .left_title{position: absolute;top: 10%;left:6%;color: #ffffff;}
.about_block2 .left_title h4{font-size: 40px;line-height: 1.4em;font-family: "AlibabaSans-Bold";font-weight: bold;color: #FCC922;}
.about_block2 .left_title p{font-size: 16px;margin-top: 40px;font-family: "AlibabaSans-Light";}
.about_block2 .block_box .right{box-flex: 6;-webkit-box-flex: 6;-moz-box-flex: 6;flex:6 ;-webkit-flex: 6;background-repeat: no-repeat;background-position: center top;background-size: cover;}

.about_block3{background-color: #ffffff;}
.about_block3 .wrap{width: 880px;margin:0 auto;}
.about_block3 .top{padding:50px 0;}
.about_block3 .top h2{font-size: 24px;}
.about_block3 .top p{font-size: 16px;}
.about_block3 .bottom {padding-bottom: 100px;}
.about_block3 .bottom ul{width: 100%;}
.about_block3 .bottom ul li{width: 25%;float: left;}
.about_block3 .bottom ul li a{position: relative; display: block;width: 100%;height: 100%;padding:3px;box-sizing: border-box;}

.about_block3 .bottom ul li a img{width: 100%;height: 100%;}
.overlay{position: absolute;top:0;left:0;width: 100%;height: 100%;background-color:#ffffff;opacity: 0;transition: all 0.5s ease;}
.about_block3 .bottom ul li a:hover .overlay{opacity: 0.5;}

.about_block3 .query_online .title{font-size: 65px;}