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.downbtns a.downbtn:hover{background:url(./down_hover.png) no-repeat center;background-size:100%}.headbox .intro .downbtns a img{width:12.5%;margin:7%;display:inline-block;vertical-align:middle;float:left}.headbox .intro .downbtns a span{float:left;width:30%;display:inline-block;vertical-align:middle;font-size:13px;color:#fff;text-align:center;line-height:38px;margin-left:8px}#btn_cen{margin-left:15px}.seevideo{height:56px;width:180px;margin:0 auto;margin-top:40px;background:url(./seevideo.png) no-repeat center;background-size:100%}.seevideo img{margin:16px;float:left}.seevideo a span{color:#fff;font-size:18px;line-height:58px;position:absolute}#mask{display:none;background:rgba(0,0,0,.75);width:100%;position:absolute;left:0;z-index:9998}#close{width:33px;position:absolute;right:15px;top:10px;cursor:pointer}.videobox{position:absolute;top:50%;left:50%;margin-left:-305px;margin-top:-212px;width:610px;height:425px;background:url(./help_icon_video_bg.png) no-repeat center;z-index:9999}#jp_container_1{top:-104px}.a1 .font{width:50%;height:auto;position:absolute;top:29%;left:0}.a1 .font img{width:100%}.a1 .pic{width:48%;position:absolute;top:15%;right:0}.a1 .pic img{width:97.6%;position:absolute;top:10%;right:0}.a2 .font{width:50%;height:auto;position:absolute;top:29%;right:0}.a2 .font span{float:right}.a2 .font img{width:100%}.a2 .font-text{margin-left:40px}.a2 .pic{width:48%;position:absolute;top:12%;left:0}.a2 .pic img{width:100%}.a3 .font{width:74.8%;height:auto;position:absolute;top:29%;left:0;z-index:2}.a3 .font img{width:100%}.a3 .font .font-text{width:100%}.a3 .font .font-icon{width:53%}.a3 .pic{width:43%;position:absolute;top:17%;right:-30px}.a3 .pic img{width:100%}.a4 .font{width:50%;position:absolute;top:27%;right:0}.a4 .font span{float:right}.a4 .font img{width:100%}.a4 .pic{width:52%;position:absolute;top:20%;left:0}.a4 .pic img{width:100%}@media screen and (min-width:1779px){.section{height:730px}.headbox .intro .downbtns a{width:150px!important;height:50px!important}.headbox .intro .downbtns a span{font-size:18px!important;line-height:54px!important}.headbox .intro .downbtns a img{margin:9% 6%!important}.seevideo img{margin:18px 15px 20px 15px!important}.headbox .intro h2{font-size:4.3em;line-height:60px;margin-top:25px}.headbox .intro h3{font-size:3em;line-height:50px;margin-top:20px}.headbox .intro h4{font-size:1.7em;line-height:50px;margin-top:20px}.headbox .intro h4 .big_font{font-size:1.8em}}@media screen and (max-width:1423px) and (min-width:1100px){.section{height:600px}.font{top:20%!important}.pic{top:10%!important}.headbox .intro .downbtns{margin-top:25px!important}.seevideo{margin-top:25px!important}.bg .li{top:43%!important}}@media screen and (min-width:1920px){.section{width:1920px;height:800px;margin:0 auto}.pic{top:10%!important}.headbox .intro .downbtns a{width:180px!important;height:60px!important}.headbox .intro .downbtns a span{font-size:18px!important;line-height:65px!important}.seevideo img{margin:18px 13px 20px 13px!important}.font-text-top{font-size:50px!important}.font-text-bottom{font-size:24px!important}}@media screen and (max-width:1100px){.section{width:1083px;height:580px;margin:0 auto}.font{top:20%!important}.pic{top:10%!important}.headbox .intro .downbtns{margin-top:30px!important}.headbox .intro .downbtns a img{margin:5% 5%!important}.headbox .intro h2,h4{margin-top:0!important}.seevideo{margin-top:25px!important}.bg .li{top:43%!important}.headbox .intro .downbtns a span{font-size:12px!important}}.bottom_btn{width:450px;height:56px;margin:0 auto;margin-top:70px;position:relative}.bottom_btn .video{height:56px;width:180px;display:block;margin-right:10px;margin:0 auto;background:url(./seevideo.png) no-repeat center;background-size:100%}.video img{margin:16px;float:left}.video a span{color:#fff;font-size:18px;line-height:58px;position:absolute}.bottom_btn .shop{height:56px;width:163px;display:inline-block;background:url(./shop.png) no-repeat center;background-size:100%}.shop img{margin:16px;float:left}.shop a span{color:#fff;font-size:18px;line-height:58px;position:absolute}.shopcode{position:absolute;left:420px;top:-20px;width:200px;height:200px;background:url(./shopcode.png) no-repeat center center #fff;background-size:90%;z-index:99;display:none}