:root{--main-bg-color: #2174f5;--main-text-color: #fff;--main-font-size: 12px;--main-border-radius: 4px;--main-head-height: 55px}@media only screen and (min-width: 1850px){:root{--main-head-height: 88px}}@media only screen and (max-width: 1199px){:root{--main-head-height: 45px}}body{overflow-x:hidden;margin:0 auto}#app{font-family:Noto-Sans-SC-Bold}.main{position:absolute;left:0;right:0;margin:0 auto}.tab{width:50px;height:49px;position:fixed;background-color:var(--main-bg-color);z-index:9;text-align:center;color:var(--main-text-color);font-size:var(--main-font-size);border-radius:var(--main-border-radius);cursor:pointer;padding:10px}.head{text-align:center}.main_img{text-align:center;position:absolute;left:0}.middle .title{border:none;position:absolute}.middle .center{margin-top:280px}.menu{display:flex;flex-direction:row;justify-content:space-between;border:none;list-style:none;position:relative;margin:0;padding-left:0}.menu li{border-bottom-color:transparent;background:none;color:#303133;display:inline-block}.menu li{font-family:Source Han Sans SC;font-weight:500;color:#ababab;opacity:1;padding-left:10px;padding-right:10px}.menu .active{background-color:#f2f5ff;border-radius:10px;cursor:pointer}.menu .disabled{cursor:not-allowed;border-radius:10px;background-color:#eee}.menu li .line_left{background:#2174f5;width:4px}.menu li .line_right{background:#2174f5;width:4px;height:30px;margin-top:25px}.menu li .item_icon{text-align:center}.menu li .item_desc{text-align:center;line-height:5px}.menu li .line_left{float:left}.menu li .line_right{float:right}.intro{position:relative;margin-bottom:20px;display:flex;align-items:center}.intro .desc{position:relative;border-radius:10px}.intro .desc:hover{background-color:#f2f5ff}.intro .desc .left{position:relative;float:left;text-align:center}.intro .desc .left .box{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);color:#555}.intro .desc .left .box img{width:100px;height:100px}.intro .desc .right{float:right}.desc_title{font-family:Source Han Sans SC-Medium,Source Han Sans SC;font-weight:500;color:#333}.desc_tip{color:#555}.desc_btn{background:#2174f5;box-shadow:2px 2px 4px 1px #0003;border:none;color:#fff;text-align:center}.desc_btn:hover{background-color:#0c64ea;cursor:pointer}.desc_version,.desc_sys_support{color:#777}.intro .view{position:absolute;top:0}.intro .view img{background-size:cover;box-shadow:#0003 3px 4px 8px 1px}.middle .center .pic2,.middle .center .pic3{background-size:cover}.foot{position:absolute}.msg{width:100%;background:#33333363;background-color:#333}.contact_us{font-family:Source Han Sans SC;font-weight:500;color:#fff;float:left}.service{position:absolute}.mobile_phone{position:absolute;font-family:Source Han Sans SC;color:#fff;text-align:left}.address{position:absolute}.address_msg{font-family:Source Han Sans SC;color:#fff;position:absolute;text-align:left}.foor_last{width:100%;text-align:center;background:#2a2a2a63;background-color:#2a2a2a;color:#ccc}.logo_img{position:absolute;top:3px;left:3px}@media only screen and (min-width: 1850px){.main{width:1920px}.tab{right:40px;top:580px}.head{width:1920px;height:88px}.main_img{width:1920px;height:350px}.middle .title{width:1920px;top:calc(445px - var(--main-head-height))}.middle .center{margin-top:520px}.middle .center .pic2,.middle .center .pic3{width:1920px}.menu li{width:537px;height:144px;font-size:20px;line-height:34px}.menu li .line_left,.menu li .line_right{height:60px;margin-top:42px}.menu li:nth-child(2),.menu li:nth-child(3){margin-left:19px}.intro{width:1920px;height:600px}.intro .desc{width:950px;height:300px}.intro .desc .left{width:290px;height:300px;font-size:20px}.intro .desc .left .box img{width:100px;height:100px}.intro .desc .right{width:650px}.intro .view{width:950px;margin-left:970px}.intro .view img{width:640px;margin-top:65px}.desc_title{margin-top:65px;width:250px;height:19px;font-size:19px}.desc_tip{margin-top:25px;width:324px;height:18px;font-size:18px}.desc_btn{margin-top:40px;width:240px;height:58px;line-height:58px;box-shadow:2px 2px 4px 1px #0003;border-radius:33px}.desc_version,.desc_sys_support{width:200px;font-size:12px;line-height:13px}.desc_version{margin-top:13px}.desc_sys_support{margin-top:8px}.footer{height:290px;width:1920px}.foot{width:1920px;height:290px;left:0}.msg{height:250px}.contact_us{width:96px;height:24px;font-size:24px;line-height:41px;margin-left:90px;margin-top:50px}.service{left:90px;top:115px}.mobile_phone{width:600px;height:16px;font-size:16px;line-height:27px;left:130px;top:112px}.address{left:90px;top:162px}.address_msg{width:400px;height:17px;font-size:16px;left:130px;top:162px}.foor_last{height:40px;line-height:40px;font-size:14px}.logo_img{width:160px;height:66px}.card{width:1920px}.card .left{width:950px;float:left}.card .left img,.card .right img{background-size:cover;width:100%}.card .right{width:950px;float:right}}@media only screen and (min-width: 1200px) and (max-width: 1849px){.main{height:730px;width:1200px}.tab{right:40px;top:380px}.head{width:1200px;height:55px}.main_img,.main_img .download_img{width:1200px;height:219px}.middle .title{width:1200px;top:calc(280px - var(--main-head-height))}.middle .center{margin-top:350px}.middle .center .pic2,.middle .center .pic3{width:1200px}.menu li{width:330px;height:110px;font-size:15px;line-height:30px}.menu li:nth-child(2),.menu li:nth-child(3){margin-left:19px}.menu li .line_left,.menu li .line_right{height:50px;margin-top:30px}.intro{width:1200px;height:375px}.intro .desc{width:590px;height:180px}.intro .desc .left{width:190px;height:180px}.intro .desc .left .box img{width:80px;height:80px}.intro .desc .right{width:390px}.intro .view{width:590px;margin-left:610px}.intro .view img{width:420px;margin-top:27px}.desc_title{margin-top:25px;width:250px;height:19px;font-size:19px}.desc_tip{margin-top:10px;width:216px;height:11px;font-size:11px}.desc_btn{margin-top:25px;width:160px;height:40px;line-height:40px;box-shadow:2px 2px 4px 1px #0003;border-radius:23px}.desc_version,.desc_sys_support{width:200px;font-size:12px;line-height:13px}.desc_version{margin-top:10px}.desc_sys_support{margin-top:5px}.footer{width:1200px;top:545px;left:0}.foot{width:1200px;height:181px}.msg{height:156px}.contact_us{width:96px;height:15px;font-size:15px;line-height:41px;margin-left:55px;margin-top:21px}.service{left:54px;top:68px;width:15px;height:15px}.mobile_phone{width:600px;height:13px;font-size:13px;line-height:27px;left:78px;top:62px}.address{left:54px;top:97px;width:15px;height:15px}.address_msg{width:300px;height:13px;font-size:13px;left:78px;top:96px}.foor_last{height:29px;line-height:29px;font-size:7px}.logo_img{width:114px;height:45px}.card{width:1200px}.card .left{width:590px;float:left}.card .left img,.card .right img{background-size:cover;width:100%}.card .right{width:590px;float:right}.menu li .item_icon img{width:48px;height:48px}}@media only screen and (max-width: 1199px){.main{height:603px;width:992px}.tab{right:20px;top:180px}.head{width:992px;height:45px}.main_img,.main_img .download_img{width:992px;height:181px}.middle .title{width:980px;top:calc(235px - var(--main-head-height))}.middle .center{margin-top:280px}.middle .center .pic2,.middle .center .pic3{width:989px}.menu li{width:260px;height:80px;font-size:12px;line-height:5px}.menu li .item_icon img{width:36px;height:36px}.menu li:nth-child(2),.menu li:nth-child(3){margin-left:10px}.menu li .line_left,.menu li .line_right{height:30px;margin-top:25px}.intro{width:992px;height:340px;margin-bottom:10px}.intro .desc{width:486px;height:170px}.intro .desc .left{width:156px;height:170px}.intro .desc .left .box img{width:64px;height:64px}.intro .desc .right{width:320px;height:170px}.intro .view{width:486px;margin-left:506px}.intro .view img{width:365px;margin-top:55px}.desc_title{margin-top:25px;width:220px;height:15px;font-size:15px}.desc_tip{margin-top:10px;width:216px;height:9px;font-size:8px}.desc_btn{margin-top:25px;width:160px;height:40px;line-height:40px;box-shadow:2px 2px 4px 1px #0003;border-radius:20px}.desc_version,.desc_sys_support{width:250px;font-size:8px;line-height:13px}.desc_version{margin-top:10px}.desc_sys_support{margin-top:5px}.footer{width:992px;left:0}.foot{width:992px;height:150px}.msg{height:129px}.contact_us{width:96px;height:14px;font-size:14px;line-height:41px;margin-left:48px;margin-top:10px}.service{width:12px;height:12px;left:48px;top:55px}.mobile_phone{width:600px;font-size:12px;line-height:27px;left:71px;top:46px}.address{left:48px;top:78px;width:12px;height:12px}.address_msg{width:300px;height:12px;font-size:12px;left:71px;top:75px}.foor_last{height:29px;line-height:29px;font-size:14px}.logo_img{width:90px;height:36px}.card{width:992px}.card .left{width:486px;float:left}.card .left img,.card .right img{background-size:cover;width:100%}.card .right{width:486px;float:right}}