body {
    background: url(/sportstech/images/index-bg.jpg) no-repeat;
    background-size: cover;
    background-attachment: fixed;
}

.header {
    position: absolute;
    background:none;
}

.mw {
    width:1200px;
    margin:0 auto;
}

.title-wrap {
    position: relative;
    padding-bottom:10px;
}

.title-wrap:after {
    content:"";
    width:26px;
    height:3px;
    border-radius:2px;
    background-color:#ffe39f;
    position: absolute;
    bottom: 0;
    left: 0;
}

.title-wrap .title {
    letter-spacing: 2px;
    font-size: 22px;
    color: #fff;
}

.title-wrap .title_en {
    font-size: 16px;
    color: #fff;
    margin-top: 4px;
}

.banner-wrap {
    padding-top:160px;
}

.intro-wrap {
    width: 550px;
    margin-left: 30px;
    color: #fff;
    font-size: 14px;
    position: relative;
    float: right;
    padding: 15px 0 0;
}

.intro-wrap .p1 {
    font-size:28px;
    font-weight: bold;
}

.intro-wrap .p2 {
    /*max-height: 110px;*/
    overflow-y: auto;
    font-size: 14px;
    letter-spacing: 1px;
    margin-top: 15px;
}

.text-bold {
    font-weight: bold;
}

.intro-btns {
    width: 550px;
    margin-top: 15px;
}

.intro-btns .btn-start {
    width: 140px;
    height: 50px;
    line-height: 46px;
    border-radius:25px;
    text-align: center;
    border: none;
    color: #333;
    font-size: 16px;
    cursor: pointer;
    background-color: #fff;
}

.intro-btns .btn-start:hover {
    background-color: #2B323E;
    color:#fff;
}

.intro-btns .text-wrap {
    line-height: 60px;
}

.intro-btns .text-wrap .icon {
    display: inline-block;
    width: 20px;
    height: 20px;
    background-position: center center;
    background-repeat: no-repeat;
    vertical-align: -5px;
    margin-left: 10px;
    margin-right: 2px;
}

.video-list {
    float: left;
    width: 620px;
    height: 410px;
    position: relative;
    z-index: 2;
    background: url(/sportstech/images/index-intro-bg.png) no-repeat;
    background-size: 100% 100%;
    padding: 44px 28px;
    box-sizing: border-box;
}

.video-btns {
    height: 34px;
    position: absolute;
    left: 0;
    top: 60px;
    z-index: 9;
    right: 0;
    margin: auto;
    text-align: center;
}

.video-btns li {
    display: inline-block;
    padding: 0 16px;
    height: 36px;
    line-height: 36px;
    background-color: #2B323E;
    font-size: 14px;
    text-align: center;
    margin-right: 10px;
    cursor: pointer;
    border-radius: 18px;
    color:#fff;
}

.video-btns li:last-child {
    margin-right:0;
}

.video-btns li.on {
    background:#fff;
    color:#1f2d4c;
}

.video-wrap {
    width: 560px;
    height: 320px;
    border-radius: 20px;
    overflow: hidden;
}

.video-wrap video {
    width: 100%;
    height:100%;
}

.center {
    overflow:hidden;
    margin-top:60px;
}

.share-wrap {
    width:820px;
}

.share-list {
    overflow:hidden;
    margin-top:20px;
}

.share-list ul li {
    float: left;
    width: 260px;
    height: 130px;
    margin-right: 20px;
    padding: 24px 30px;
    border-radius: 10px;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -o-box-sizing: border-box;
    -ms-box-sizing: border-box;
    box-sizing: border-box;
    background-color: rgba(255,255,255,.5);
}

.share-list ul li:last-child {
    margin-right:0;
}

.share-list .icon-wrap {
    width: 84px;
    height: 84px;
        background-color: rgba(0, 0, 0, 0.2);
    border-radius: 50%;
    text-align: center;
    line-height: 84px;
    float: left;
}

.share-list .icon-wrap .iconfont2 {
    font-size: 36px;
    color: #fff;
}

.share-list .text-wrap {
    float: left;
    width: 106px;
    margin-left: 10px;
    font-size: 14px;
    color: #fff9ea;
    padding: 8px 0;
    text-align: center;
}

.share-list .text-wrap .p1 {
    font-size:28px;
    padding-bottom: 10px;
}

.answer-wrap {
    width:340px;
}

.answer-wrap .go-answer {
    display:block;
    width:100%;
    height:130px;
    line-height:130px;
    color:#fff9ea;
    font-size:22px;
    margin-top:20px;
    text-align:center;
    border-radius:10px;
    background: url("/sportstech/images/qa_bg.png") no-repeat;
    background-size:100% 100%;
    position: relative;
}

.answer-wrap .go-answer:hover {
    text-decoration: none;
}

.answer-wrap .go-answer .iconfont2 {
    font-size: 34px;
    vertical-align: -6px;
    margin-left: 6px;
}