body,dl,dd,ul,ol,h1,h2,h3,h4,h5,h6,p,form,header,section,article,footer{margin:0;}
body,button,input,select,textarea{font:12px/1.5 tahoma,'\5FAE\8F6F\96C5\9ED1',sans-serif}
h1,h2,h3,h4,h5,h6{font-size:100%}
em,b{font-style:normal}
a{text-decoration:none}
a:hover{text-decoration:underline}
img{border:0}
body{background:#fff;}
button,input,select,textarea{font-size:100%;outline:none}
table{border-collapse:collapse;border-spacing:0}
td,th,ul,ol{padding:0;list-style: none;}
.clearfix:after,.clear:after{content:" "; clear:both; height:0; visibility:hidden; display:block;}
.clearfix,.clear{*zoom:1;}
.hide{height:0; line-height:0; font-size:0; visibility:hidden; display:none;}
.wrap{font-family:'\5FAE\8F6F\96C5\9ED1';width: 100%;color:#999;font-size:18px;min-width: 1200px;padding-bottom:145px;background:#eef2fa url(../ossweb-img/bg.jpg) no-repeat top center;overflow:hidden;}
.wrap-bg-shape{background:url(../ossweb-img/bg-top-line.png) center top repeat-x;}
.wrap-bg-line{background:url(../ossweb-img/bg-top-line.png) center top repeat-x;}
.wrap img{display: block;margin:0;}
.mod-header,.mod-footer,.wrap-bg-shape{min-width: 1200px;width:100%;position: relative;}
.main,.mid{width: 1200px;margin:0 auto;position: relative;}
.main{}
.main a:hover{text-decoration:none;/*filter:brightness(1.2);*/}

/*����*/
.spr {background: url(../ossweb-img/spr.png) no-repeat;}
.pop {position: relative;width: 700px;height: 486px;background: #fff;text-align: center; padding-top: 1px;outline: none;}
.pop .close {position: absolute;width: 69px;height: 76px;background-position: -5px -144px;top: 0;right: -80px;outline: none;text-indent: -999em;}
.pop h4{text-align: center;font-size: 37px;color: #091222;margin-top: 70px;}
.pop-1 li{display: inline-block;vertical-align: top;width: 243px;height: 245px;text-align: center;border: 1px solid #ebebeb;margin: 44px 10px 0;}
.pop-1 li a{display: block;width: 129px;height: 129px;font-size: 28px;color: #000;margin: 35px auto 0;line-height: 11;}
.pop-1 li a:hover{text-decoration: none;}
.pop-1 li .qq{background-position:-144px -5px;}
.pop-1 li .wx{background-position:-5px -5px;}
/* footer-box */
/*.footer-box{width: 100%;height: 204px;background: #fff;font-size: 14px; color: #999; border-top: 1px solid #c1c8cd;}
.footer-box .content{width: 1200px;position: relative;margin: 0 auto;}
.footer-box .fl{float:left;}
.footer-box .fr{float:right;}
.we-footer-copyright {margin-top: 80px;}
.we-footer-copyright .footer-logo {display: block;width: 233px; height: 31px;}
.we-footer-copyright a {color: #999;}
.we-footer-copyright a:hover {text-decoration: underline;}
.we-footer-copyright .footer-copyright {margin-top: 16px;}
.we-footer-contact {font-size: 12px;color: #999;line-height: 1;vertical-align: middle;margin-top: 132px;}
.we-footer-contact p {display: inline-block;font-size: 14px;margin-right: 20px;}*/
/* footer-box end*/
input::-webkit-input-placeholder, textarea::-webkit-input-placeholder {
  color: #7c8da0;
  font-size: 16px;
}

input:-moz-placeholder, textarea:-moz-placeholder {
  color: #7c8da0;
  font-size: 16px;
}

input::-moz-placeholder, textarea::-moz-placeholder {
  color: #7c8da0;
  font-size: 16px;
}

input:-ms-input-placeholder, textarea:-ms-input-placeholder {
  color: #7c8da0;
  font-size: 16px;
}
/*main����*/
.spr-pc{background:url(../ossweb-img/spr-pc.png) no-repeat;}
.main{position:relative;}
.head-video-con{position:relative;width:1200px;height:657px;margin-bottom: 35px;}
.video-top-img{position:absolute;left:50%;margin-left:-960px;width:1920px;height:100%;overflow:hidden;}
.video-top-img img{position:absolute;left:0;top:50%;transform:translateY(-50%);-webkit-transform:translateY(-50%);display:block;}
.video-top-img .flow{position:absolute;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,.3);}
.video-top-contain{position:relative;top:36px;width:100%;height:584px;background:#434343;}
.left-video-area{position:relative;display:inline-block;vertical-align:top;width:870px;height:494px;}
.left-video-area .video-cover{width:100%;height:100%;overflow:hidden;}
.left-video-area .video-cover img{display:block;width:100%;height:auto;background-size:100%;}
.left-video-area .video-container{position:absolute;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,.8);}
.left-video-area .video-container .container{position:relative;width:100%;height:100%;z-index:2;display:none;}
.left-video-area .btn-play{position:absolute;width:100%;height:100%;display:block;overflow:hidden;}
.left-video-area .btn-play .icon{display:block;margin:196px auto 28px;width:73px;height:73px;background-position:0 -31px;}
.left-video-area .video-container .btn-play p{word-wrap:break-word;word-break: break-all;width:100%;margin:0 auto;font-size:28px;line-height:45px;color:#bbe5ff;text-align:center;}
.left-video-area .learn-progress-num{position:absolute;right:0;top:16px;width:190px;height:48px;background:rgba(60,119,280,.8);color:#fff;font-size:16px;line-height:48px;}
.left-video-area .learn-progress-num p{display:inline-block;vertical-align:top;}
.left-video-area .learn-progress-num>div{width:100%;height:100%;text-align:center;line-height:48px;}
.left-video-area .learn-progress-num i{position:relative;top:-2px;display:inline-block;vertical-align:middle;width: 26px;height: 22px;background-position:0 0;margin-right:10px;}
.right-video-links{display:inline-block;vertical-align:top;}
.right-video-links .links-con{width:324px;height:493px;overflow-y:auto;overflow-x:hidden;}
.right-video-links .links-con{scrollbar-arrow-color: #32303a;scrollbar-face-color: #32303a;scrollbar-3dlight-color: #1b1b21;scrollbar-shadow-color: #32303a;scrollbar-darkshadow-color: #1b1b21;scrollbar-track-color: #1b1b21;}
.right-video-links .links-con::-webkit-scrollbar{width:4px; height:4px;}
.right-video-links .links-con::-webkit-scrollbar-track{background: #585858;border-radius:2px;}
.right-video-links .links-con::-webkit-scrollbar-thumb{background: #9a9a9a;border-radius:2px;}
.right-video-links a{display:inline-block;vertical-align:top;width:322px;padding-left:10px;padding-top:20px;padding-bottom:10px;font-size:16px;color:#fff;}
.right-video-links span{display:block;width:100%;padding:0 20px;box-sizing:border-box;pointer-events:none;}
.right-video-links .video-time{font-size:12px;color:#b4c5d9;line-height:20px;}
.right-video-links .video-time:before{content:'';display:inline-block;vertical-align:middle;width: 12px;height: 13px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-192px -61px;margin-right:6px;}
.right-video-links .video-title{line-height:32px;word-wrap:break-word;word-break: break-all;overflow: hidden; text-overflow: ellipsis;white-space:nowrap;}
.right-video-links a.on{color:#66ccff;}
.right-video-links a.on span{color:#66ccff;}
.right-video-links a.on{background:#2e2e2e;}
.right-video-links .on .video-time:before{content:'';display:inline-block;vertical-align:middle;width: 12px;height: 13px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-192px -37px;margin-right: 6px;}
.bottom-video-desc{background:#333333;width:1200px;height:92px;line-height:92px;}
.bottom-video-desc .left-desc{display:inline-block;vertical-align:top;width:878px;padding-left:25px;box-sizing:border-box;margin-right:46px;}
.bottom-video-desc .video-subject-name{color:#fff;font-size:26px;font-weight:bold;line-height:36px;padding-top:13px;}
.bottom-video-desc .video-subject-name span{position:relative;top:3px;color:#bcbcbc;font-size:16px;margin-left:8px;}
.bottom-video-desc .all-classes-num{color:#bcbcbc;font-size:14px;display:inline-block;vertical-align:top;}
.bottom-video-desc .all-classes-num:after{content:'|';margin:0 8px;font-size:14px;}
.bottom-video-desc .all-classmate-num{color:#66ccff;font-size:14px;display:inline-block;vertical-align:top;}
.bottom-video-desc .btn-collect{display:inline-block;vertical-align:middle;}
.bottom-video-desc .video-subject-detail{line-height:27px;color:#fff;font-size:16px;}
.bottom-video-desc .btn-collect{float:right;position:relative;top:-3px;color:#fff;margin-right:25px;}
.bottom-video-desc .btn-collect:before{content:'';position:relative;top:-3px;display:inline-block;vertical-align:middle;background:url(../ossweb-img/spr-pc.png) no-repeat;width: 21px;height: 21px;background-position:-88px -181px;margin-right: 6px;}
.bottom-video-desc .btn-collect.on:before{content:'';position:relative;top:-3px;display:inline-block;vertical-align:middle;background:url(../ossweb-img/spr-pc.png) no-repeat;width: 21px;height: 21px;background-position:-119px -181px;margin-right: 6px;}
.bottom-video-desc .btn-collect.on{color:#f99b79;}
.bottom-video-desc .btn-share{float:right;position:relative;top:-2px;color:#fff;}
.bottom-video-desc .btn-share:before{content:'';position:relative;top:-2px;display:inline-block;vertical-align:middle;background:url(../ossweb-img/spr-pc.png) no-repeat;width: 17px;height: 17px;background-position:-334px -3px;margin-right: 6px;}
.bottom-video-desc .btn-limit{display:inline-block;vertical-align:middle;width:242px;color:#fff;border-radius:25px;font-size:22px;height:50px;line-height:50px;text-align:center;}
.bottom-video-desc .btn-limit.btn-study{background:#4c9dfd;}
.bottom-video-desc .btn-study:before{content:'';position:relative;top:-3px;display:inline-block;vertical-align:middle;width:34px;height:23px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-204px -1px;margin-right:12px;}
.bottom-video-desc .btn-limit.btn-rank{background:#54b4b3;}
.bottom-video-desc .btn-rank:before{content:'';position:relative;top:-4px;display:inline-block;vertical-align:middle;width:38px;height:26px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-37px 0;margin-right:12px;}
.bottom-video-desc .btn-limit.btn-price{background:#ff5353;}
.bottom-video-desc .btn-price:before{content:'';position:relative;top:-3px;display:inline-block;vertical-align:middle;width:28px;height:22px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-95px -2px;margin-right:12px;}
.bottom-video-desc .btn-limit.btn-sign{background:#ff632a;}
.bottom-video-desc .btn-sign:before{content:'';position:relative;top:-3px;display:inline-block;vertical-align:middle;width:32px;height:23px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-147px -1px;margin-right:12px;}

.content-video-intro .left-nav{width: 835px;height: 72px;background:url(../ossweb-img/nav-bg.jpg) no-repeat; border-top-left-radius:20px;border-top-right-radius:20px;}
.content-video-intro .left-nav a{position:relative;float:left;width:33%;color:#fff;font-size:20px;line-height:72px;text-align:center;}
.content-video-intro .left-nav a.on:after{content:'';position:absolute;left:50%;margin-left:-20px;bottom:0;display:block;width: 40px;height: 6px;border-radius:3px;background:#ffbf4f;}
.content-video-intro .left-nav a span{pointer-events:none;}
.content-video-intro .left-video-intro{display:inline-block;vertical-align:top;position:relative;width:835px;background:#fff;height:auto;border-radius:20px;margin-right: 30px;box-shadow:0 0 3px 3px rgba(114,144,186,.14);-webkit-box-shadow:0 0 3px 3px rgba(114,144,186,.14);}
.content-video-intro .left-video-intro:before{content:'';display:block;width:100%;height:100%;position:absolute;left:0;top:0;background:url(../ossweb-img/flow2.png) no-repeat;background-size:100% 100%;}
.content-video-intro .lesson-teacher-desc{color:#243446;font-size:18px;line-height:45px;}
.content-video-intro .lesson-teacher-desc:before{content:'';position:relative;top:-15px;display:inline-block;vertical-align:top;width: 24px;height: 45px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-95px -37px;margin-right: 20px;}
.content-video-intro .lesson-nav-con{position:relative;z-index:1;width:772px;margin:0 auto;}
.content-video-intro .lesson-teacher-words,.lesson-subject-words{color:#7c8da0;font-size:16px;word-wrap:break-word;word-break: break-all;line-height:24px;}
.content-video-intro .lesson-subject-intro{color:#243446;font-size:18px;line-height:45px;margin-top:40px;}
.content-video-intro .lesson-subject-intro:before{content:'';position:relative;top:-15px;display:inline-block;vertical-align:top;width: 24px;height: 45px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-141px -37px;margin-right: 20px;}
.content-video-intro .lesson-subject-words{margin-bottom:50px;}
.content-video-intro .lesson-intro{padding-bottom:60px;margin-top:40px;}
.content-video-intro .lesson-img{width: 772px;height: auto;border-radius:20px;overflow:hidden;}
.content-video-intro .lesson-img img{width:772px;display:block;height:auto;background-size:100%;}
.content-video-intro .lesson-catelog{margin-top:25px;}
.lesson-catelog .lesson-catelog-title{color:#243446;font-size:18px;line-height: 40px;margin-bottom: 15px;}
.lesson-catelog .links-con a{display:block;width:100%;line-height:45px;color:#7c8da0;font-size:16px;clear:both;margin-bottom: 20px;}
.lesson-catelog .links-con a span{pointer-events:none;word-wrap:break-word;word-break: break-all;}
.lesson-catelog .links-con .video-time{float:right;font-weight:normal;}
.lesson-catelog .links-con .video-title{display:inline-block;vertical-align:top;width:648px;overflow: hidden; text-overflow: ellipsis;white-space:nowrap;}
.lesson-catelog .links-con .video-title:before{content:'';position:relative;top:-2px;display:inline-block;vertical-align:middle;width:21px;height:21px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-240px -49px;margin-right:10px;}
.lesson-catelog .links-con .on .video-title:before{content:'';position:relative;top:-2px;display:inline-block;vertical-align:middle;width:21px;height:21px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-272px -49px;margin-right:10px;}
.lesson-catelog .links-con .on{color:#3d80dc;font-weight:bold;}
.lesson-catelog{padding-bottom:68px;}
.lesson-comment .lesson-comment-title{color:#243446;font-size:18px;line-height:45px;margin-bottom: 10px;}
.lesson-comment .lesson-comment-title:before{content:'';position:relative;top:-15px;display:inline-block;vertical-align:top;width: 24px;height: 45px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-95px -37px;margin-right: 20px;}
.lesson-comment .lesson-comment-title a{color:#7c8da0;font-size:14px;}
.lesson-comment .lesson-comment-title .btn-hot{margin-left:16px;}
.lesson-comment .lesson-comment-title .btn-hot:after{content:'/';color:#7c8da0 !important;margin-right: 2px;}
.lesson-comment .lesson-comment-title a.on{color:#3d80dc;}
.content-video-intro .lesson-comment{margin-top:40px;padding-bottom:30px;}
.lesson-comment .input-con{width: 772px;height: 144px;background:#eef2fa;overflow:hidden;}
.lesson-comment .input-con input{display:block;width: 727px;padding:0 10px;height: 74px;background:#fff;border:none;outline:none;color:#243446;font-size:16px;margin:13px auto;}
.lesson-comment .input-con a{float:right;width:88px;height:30px;border-radius:15px;color:#fff;font-size:16px;background:#ff632a;text-align:center;line-height:30px;margin-right:13px;}
.lesson-comment .user-img{display:inline-block;vertical-align:top;width: 50px;height: 50px;overflow:hidden;border-radius:50%;margin-right:20px;}
.lesson-comment .user-img img{display:block;width:100%;height:auto;background-size:100%;}
.lesson-comment .user-name{width:600px;color:#7c8da0;font-size:16px;line-height:30px;}
.lesson-comment .user-comment{word-wrap:break-word;word-break: break-all;display:inline-block;vertical-align:top;width:600px;color:#243446;font-size:16px;line-height:24px;}
.lesson-comment li{padding:20px 14px;clear:both;border-bottom:2px solid #ebedf1;}
.lesson-comment .user-options{display:inline-block;vertical-align:top;width:666px;}
.lesson-comment .user-time{clear:both;color:#7c8da0;font-size:14px;line-height:20px;margin-top:5px;}
.lesson-comment .user-time p{display:inline-block;vertical-align:top;}
.lesson-comment .user-time a{float:right;display:block;color:#7c8da0;line-height:20px;}
.lesson-comment .user-time a.on{color:#f89d7c;}
.lesson-comment .user-time a:before{content:'';display:inline-block;vertical-align:top;position:relative;top:0px;width: 21px;height: 20px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-345px -48px;margin-right: 6px;}
.lesson-comment .user-time a.on:before{content:'';display:inline-block;vertical-align:top;position:relative;top:0px;width: 21px;height: 20px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-320px -48px;margin-right: 6px;}
.lesson-comment .btn-more{display:block;width:128px;margin:0 auto;line-height:40px;text-align:center;color:#3d80dc;font-size:14px;padding-top:20px;}
.lesson-comment .btn-more:after{content:'';position:relative;top:-2px;display:inline-block;vertical-align:middle;width: 10px;height: 7px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-380px -58px;margin-left: 10px;}
.right-video-organize{display:inline-block;vertical-align:top;width:328px;}
.right-video-organize .organize-title{position:relative;top:-16px;word-wrap:break-word;word-break: break-all;display:inline-block;vertical-align:top;height:48px;background:url(../ossweb-img/icon-title-decro.png) no-repeat;line-height:60px;color:#243446;font-size:20px;font-weight:bold;padding-left:20px;}
.right-video-organize .organize-title:after{content:'';position:absolute;left:20px;bottom:5px;width:83%;height:4px;border-radius:2px;background:#0a7cf6;}
.right-video-organize .organize-title span{position:relative;z-index:2;}
.right-video-organize .organize-intro,.right-video-organize .recommend-intro{padding:30px 0;width:100%;margin-bottom: 18px;border-radius:10px;background:#fff;box-shadow:0 0 3px 3px rgba(114,144,186,.14);-webkit-box-shadow:0 0 3px 3px rgba(114,144,186,.14);}
.right-video-organize .organize-img{display:block;width:84px;height:84px;border-radius:50%;margin:0 auto;overflow:hidden;}
.right-video-organize .organize-img img{display:block;width:84px;height:auto;background-size:100%;}
.right-video-organize .organize-name{word-wrap:break-word;word-break: break-all;width:100%;text-align:center;color:#243446;font-size:18px;line-height:40px;}
.right-video-organize .organize-desc{width:300px;margin:0 auto;color:#7c8da0;font-size:16px;line-height:24px;text-align:justify;}
.right-video-organize .recommend-title{top:0;margin-bottom: 13px;}
.right-video-organize .recommend-intro{padding:20px 0;}
.right-video-organize .recommend-subject-item{position:relative;width:300px;margin:0 auto 10px;}
.right-video-organize .btn-jump-page{position:absolute;left:0;top:0;display:block;width:100%;height:100%;}
.right-video-organize .subject-cover{display:inline-block;vertical-align:top;width: 147px;height: 111px;overflow:hidden;margin-right: 6px;}
.right-video-organize .subject-cover img{display:block;width:100%;height:auto;background-size:100%;}
.right-video-organize .subject-detail{display:inline-block;vertical-align:top;width: 140px;}
.right-video-organize .subject-name{word-wrap:break-word;word-break: break-all;color:#243446;padding-top:4px;font-size:14px;line-height:18px;height: 36px;margin-bottom: 25px;overflow: hidden; text-overflow: ellipsis;display: -webkit-box;-webkit-line-clamp: 2;-webkit-box-orient: vertical;}
.right-video-organize{color:#b4c5d9;font-size:12px;line-height:22px;word-wrap:break-word;word-break: break-all;}
.right-video-organize .btn-limit{display:inline-block;vertical-align:middle;width:100%;color:#fff;border-radius:25px;font-size:12px;line-height:18px;text-align:left;}
.right-video-organize .btn-limit.btn-rank{color:#54b4b3;}
.right-video-organize .btn-rank:before{content:'';position:relative;top:-2px;display:inline-block;vertical-align:middle;width:23px;height:14px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-38px -131px;margin-right:7px;}
.right-video-organize .btn-limit.btn-price{color:#ff5353;}
.right-video-organize .btn-price:before{content:'';position:relative;top:-2px;display:inline-block;vertical-align:middle;width:18px;height:17px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-73px -129px;margin-right:7px;}
.right-video-organize .btn-limit.btn-sign{color:#ff632a;}
.right-video-organize .btn-sign:before{content:'';position:relative;top:-1px;display:inline-block;vertical-align:middle;width:20px;height:17px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-6px -129px;margin-right:7px;}
.right-video-organize .btn-more{display:block;width:141px;margin:15px auto 0;line-height:40px;border-radius:20px;color:#3d80dc;font-size:14px;text-align:center;}
.right-video-organize .btn-more:after{content:'';position:relative;top:-2px;display:inline-block;vertical-align:middle;width: 10px;height: 7px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position: -380px -58px;margin-left: 10px;}
.dialog{position:relative;width: 415px;height: 264px;text-align:center;background:#fff;border-radius:10px;border-bottom:5px solid #087cf5;box-shadow:0 0 3px 3px rgba(114,144,186,.14);-webkit-box-shadow:0 0 3px 3px rgba(114,144,186,.14);}
.dia-con{width:100%;height:100%;background:url(../ossweb-img/cur-bg.png) no-repeat;background-size:100% 100%;box-sizing:border-box;padding-top:50px;}
.dialog .wechat-code{display:inline-block;vertical-align:top;width: 144px;}
.dialog .wechat-code .little-title{color:#243446;font-size:16px;line-height:25px;margin-bottom: 10px;}
.dialog .wechat-code .little-title:before{content:'';display:inline-block;vertical-align:top;width:31px;height:25px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-156px -125px;margin-right:7px;}
.dialog .wechat-code img{display:block;width: 133px;height: 133px;background-size:100%;margin:0 auto;}
.dialog .qq-con{position:relative;display:inline-block;vertical-align:top;width: 150px;color:#243446;font-size:16px;line-height:40px;}
.dialog .qq-con .qq-title1:before{content:'';display:block;margin:0 auto;width:41px;height:48px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-214px -98px;}
.dialog .qq-con .qq-title2:before{content:'';display:block;margin:0 auto;width:47px;height:45px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-268px -100px;}
.dialog .qq-con .tg-sns{position:absolute;left:0;top:0;width:100%;height:100%;}
.tg-sns-qq{display:block;opacity:0;width:100% !important;height:50% !important;margin:0 auto !important;}
.tg-sns-qzone{display:block;opacity:0;width:100% !important;height:50% !important;margin:0 auto !important;}
.tg-sns-qq:hover{background:none;}
.tg-sns-qzone:hover{background:none;}
.dialog .dia-close{position:absolute;right:-40px;top:0;font-size:0;width: 35px;height: 35px;background-position:-103px -120px;}
.dialog2{width: 323px;height: 197px;}
.dialog2 .sign-success-desc{width:100%;text-align:center;color:#000;font-size:20px;font-weight:bold;line-height:47px;}
.dialog2 .sign-success-desc:before{content:'';position:relative;top:0px;display:inline-block;vertical-align:top;width:46px;height:47px;background:url(../ossweb-img/spr-pc.png) no-repeat;background-position:-330px -103px;margin-right:7px;}

.dialog2 .btn-now-study{display:block;width: 143px;height: 40px;background:#087cf5;border-radius:20px;text-align:center;line-height:40px;color:#fff;font-size:16px;margin:25px auto 0;}
.dialog2 .btn-now-study:hover{text-decoration:none;}