html {
    font-size: 20px;
}

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: #fff;
    font-size: 0.7rem;
    color: #252525;
}

body, button, input, select, textarea {
    font-family: STHeiti,Droidsansfallback,Helvetica,"Microsoft YaHei",Arial,sans-serif,"宋体";
}

button, input {
    outline-style: none;
}

img {
    display: block;
    width: 100%;
}
/* 默认不显示下划线，保持页面简洁 */
ins, a {
    text-decoration: none;
}

/* 重设 HTML5 标签, IE 需要在 js 中 createElement(TAG) */
article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
    display: block;
}
/* HTML5 媒体文件跟 img 保持一致 */
audio, canvas, video {
    display: inline-block;
    *display: inline;
    *zoom: 1;
}
/* 去掉各Table  cell 的边距并让其边重合 */
table {
    border-collapse: collapse;
    border-spacing: 0;
    table-layout: fixed;
    empty-cells: show;
    border-collapse: collapse;
}

/* IE bug fixed: th 不继承 text-align*/
th {
    text-align: inherit;
}

/* 去除默认边框 */
fieldset, img {
    border: 0;
}
/* ie6 7 8(q) bug 显示为行内表现 */
iframe {
    display: block;
}
/* 去掉 firefox 下此元素的边框 */
abbr, acronym {
    border: 0;
    font-variant: normal;
}
/* 一致的 del 样式 */
del {
    text-decoration: line-through;
}
/* 去掉列表前的标识, li 会继承 */
ol, ul, ul li {
    list-style: none;
}
/* 对齐是排版最重要的因素, 别让什么都居中 */
caption, th {
    text-align: left;
}


q:before, q:after {
    content: '';
}


body .hide {
    display: none !important;
}

.clear {
    clear: both;
}

.fL {
    float: left;
}

.fR {
    float: right;
}

.m-center {
    margin: 0 auto;
}

.m10 {
    margin: 0.5rem !important;
}

.m20 {
    margin: 1rem !important;
}

.m30 {
    margin: 1.5rem !important;
}

.m40 {
    margin: 2rem !important;
}

.m50 {
    margin: 2.5rem !important;
}

.m5 {
    margin: 0.25rem !important;
}

.mb5 {
    margin-bottom: 0.25rem !important;
}

.mb10 {
    margin-bottom: 0.5rem !important;
}

.mb20 {
    margin-bottom: 1rem !important;
}

.mb30 {
    margin-bottom: 1.5rem !important;
}

.mb40 {
    margin-bottom: 2rem !important;
}

.mb50 {
    margin-bottom: 2.5rem !important;
}

.mt5 {
    margin-top: 0.25rem !important;
}

.mt10 {
    margin-top: 0.5rem !important;
}

.mt20 {
    margin-top: 1rem !important;
}

.mt30 {
    margin-top: 1.5rem !important;
}

.mt40 {
    margin-top: 2rem !important;
}

.mt50 {
    margin-top: 2.5rem !important;
}

.ml5 {
    margin-left: 0.25rem !important;
}

.ml10 {
    margin-left: 0.5rem !important;
}

.ml20 {
    margin-left: 1rem !important;
}

.ml30 {
    margin-left: 1.5rem !important;
}

.ml40 {
    margin-left: 2rem !important;
}

.ml50 {
    margin-left: 2.5rem !important;
}

.mr5 {
    margin-right: 0.25rem !important;
}

.mr10 {
    margin-right: 0.5rem !important;
}

.mr20 {
    margin-right: 1rem !important;
}

.mr30 {
    margin-right: 1.5rem !important;
}

.mr40 {
    margin-right: 2rem !important;
}

.mr50 {
    margin-right: 2.5rem !important;
}

.p5 {
    padding: 0.25rem !important;
}

.p10 {
    padding: 0.5rem !important;
}

.p20 {
    padding: 1rem !important;
}

.p30 {
    padding: 1.5rem !important;
}

.p40 {
    padding: 2rem !important;
}

.p50 {
    padding: 2.5rem !important;
}

.pb5 {
    padding-bottom: 0.25rem !important;
}

.pb10 {
    padding-bottom: 0.5rem !important;
}

.pb20 {
    padding-bottom: 1rem !important;
}

.pb30 {
    padding-bottom: 1.5rem !important;
}

.pb40 {
    padding-bottom: 2rem !important;
}

.pb50 {
    padding-bottom: 2.5rem !important;
}

.pt5 {
    padding-top: 0.25rem !important;
}

.pt10 {
    padding-top: 0.5rem !important;
}

.pt20 {
    padding-top: 1rem !important;
}

.pt30 {
    padding-top: 1.5rem !important;
}

.pt40 {
    padding-top: 2rem !important;
}

.pt50 {
    padding-top: 2.5rem !important;
}

.pl5 {
    padding-left: 0.25rem !important;
}

.pl10 {
    padding-left: 0.5rem !important;
}

.pl20 {
    padding-left: 1rem !important;
}

.pl30 {
    padding-left: 1.5rem !important;
}

.pl40 {
    padding-left: 2rem !important;
}

.pl50 {
    padding-left: 2.5rem !important;
}

.pr5 {
    padding-right: 0.25rem !important;
}

.pr10 {
    padding-right: 0.5rem !important;
}

.pr20 {
    padding-right: 1rem !important;
}

.pr30 {
    padding-right: 1.5rem !important;
}

.pr40 {
    padding-right: 2rem !important;
}

.pr50 {
    padding-right: 2.5rem !important;
}


.w-ratio-90 {
    width: 90% !important;
}

.w-ratio-80 {
    width: 80% !important;
}

.w-ratio-70 {
    width: 70% !important;
}

.w-ratio-60 {
    width: 60% !important;
}

.w-ratio-50 {
    width: 50% !important;
}



.button {
    font-size: 0.7rem;
    font-weight: normal;
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    -webkit-font-feature-settings: "kern" 1;
    -moz-font-feature-settings: "kern" 1;
    margin-bottom: 0;
    border: 0.05rem solid #fb5f21;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
    border-radius: 0.25rem;
    -webkit-border-radius: 0.25rem;
    -moz-border-radius: 0.25rem;
    background-image: none !important;
    color: #fff;
    background-color: #fb5f21;
    text-shadow: none;
    box-shadow: none;
    line-height: 1.5;
    padding: 0.5rem 0.9rem;
    position: relative;
    transition: color 0.1s linear 0s, background-color 0.1s linear 0s, opacity 0.2s linear 0s !important;
    width: 100%;
}

    .button:active {
        background-color: #1aad19;
        border-color: #029400;
        color: #53d052;
    }

    .button[disabled], .button[disabled]:active {
        background-color: #9de49c;
        border-color: #9ad499;
        box-shadow: none;
        color: #d8f4d7;
    }


.button-default {
    background-color: #fbfafc;
    border-color: #d6d5d6;
    color: #000;
}

    .button-default:active {
        background-color: #dfdfdf;
        color: #595959;
        border-color: #c7c7c7;
    }

    .button-default[disabled], .button-default[disabled]:active {
        background-color: #fdfcfd;
        border-color: #e6e6e6;
        box-shadow: none;
        color: #b1b0b1;
    }


.footerBodyBottom {
    margin-bottom: 3rem;
}

.footerNav {
    position: fixed;
    bottom: 0;
    text-align: center;
    width: 100%;
    background: white;
    z-index: 9999;
}

.footerUl {
    font-size: 0;
    /*border-top: 0.05rem solid #cdcdcd;*/
}

.footerLi {
    display: inline-block;
    width: 20%;
    padding: 0.3rem 0;
    cursor: pointer;
    font-size: 0.7rem;
}

    .footerLi a {
        display: block;
    }

    .footerLi:active {
        background-color: #DADADA;
    }

.footerIco {
    width: 1.2rem;
    text-align: center;
    display: block;
    margin: 0 auto;
}

.footerTxt {
    color: #000;
}

.footerThis {
    color: #fb5f21;
}

.footerRed {
    border-radius: 1rem;
    position: absolute;
    right: 6%;
    border: tomato;
    top: 0.4rem;
    width: 0.3rem;
    background: red;
    height: 0.3rem;
    display: none;
}


.HomefooterRed {
    border-radius: 1rem;
    position: absolute;
    margin-left: 12%;
    border: tomato;
    top: 0.4rem;
    width: 0.3rem;
    background: red;
    height: 0.3rem;
    display: none;
}

.NiufooterRed {
    border-radius: 1rem;
    position: absolute;
    right: 20%;
    border: tomato;
    top: 0.4rem;
    width: 0.3rem;
    background: red;
    height: 0.3rem;
    display: none;
}




.PageHead {
    padding: 0.5rem;
    position: relative;
    border-bottom: 0.05rem solid #f7f7f7;
}

.PageHeadImg {
    width: 1rem;
    padding: 0rem;
    border-width: 0rem;
    margin: 0rem;
}

.PageHLeft {
    position: absolute;
    left: 0.5rem;
    top: 0.5rem;
    padding: 0rem;
    font-size: 0rem;
}

.PageHCenter {
    font-size: 0.8rem;
    text-align: center;
    margin: 0rem 2rem;
    word-break: break-all;
    white-space: nowrap;
    overflow: hidden;
}

.PageHRight {
    position: absolute;
    right: 0.5rem;
    top: 0.5rem;
    font-size: 0rem;
}

.PageHead a {
}

.PageHButton {
    font-size: 0.8rem;
    color: #2196F3;
    cursor: pointer;
}
/*每个页面单独设置*/
.PageHRImg {
}

.PageHLImg {
}

.NowSelectCourse {
    cursor: pointer;
}

.NowSCTitle {
    display: inline-block;
    vertical-align: middle;
    overflow: hidden;
    max-width: 80%;
}

.NowSCImg {
    display: inline-block;
    vertical-align: middle;
    padding-top: 0.2rem;
    margin-left: 0.2rem;
}

    .NowSCImg img {
        width: 0.6rem;
    }

.imgAdapt {
    position: relative;
    overflow: hidden;
}

    .imgAdapt img {
        width: auto;
        height: auto;
    }

/*滚动广告 高度 5rem 只是默认，请根据实际情况调整 */
.rollImgBody {
    width: 100%;
    position: relative;
    height: 5rem
}

.rollImgUl {
    position: relative;
}

.rollImgLi {
    position: absolute;
    display: none;
    width: 100%;
    height: 5rem;
    overflow: hidden;
    top: 0rem;
    left: 0rem;
}

    .rollImgLi img {
        display: block;
        width: auto;
    }

.rollImgBox {
    position: absolute;
    bottom: 0rem;
    font-size: 0;
    width: 100%;
    text-align: center;
    background-color: rgba(0,0,0,0.3);
    padding: 0.2rem;
}

.rollImgBoxItem {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 0.5rem;
    background: #666;
    display: inline-block;
    margin: 0 0.5rem;
    cursor: pointer;
}

    .rollImgBoxItem i {
    }

.rollImgBoxThis {
    background: #fff;
}

.rollImgBody .AdInfoJson {
    display: none !important;
}

.studyIcon {
    width:205%;
    position: absolute;
    left: -55%;
    bottom: 0.01rem;
}

@media only screen and (min-width: 640px) {
    body {
        width: 640px;
        margin: 0 auto;
    }

    .footerNav {
        width: 640px;
        margin: 0 auto;
    }
   
    .Product .PBottomList {
        width: 640px;
    }

    .PageCount {
        width: 640px !important;
    }

    .MistakePage {
        width: 640px !important;
    }
    #player-container-id {
        width: 640px !important;
    }
}


/*背景全屏透明 遮罩层*/

.Mask-div-bj {
    width: 100%;
    height: 100%;
    background: #000;
    filter: alpha(opacity:30);
    opacity: 0.3;
    -moz-opacity: 0.3;
    -khtml-opacity: 0.3;
    position: fixed;
    z-index: 9;
    left: 0;
}

.show {
    display: block;
}

.hide {
    display: none;
}

.text-c {
    text-align: center;
}


/* 字体  **/
.size-10 {
    font-size: 0.5rem;
}

.size-12 {
    font-size: 0.6rem;
}

.size-14 {
    font-size: 0.7rem;
}

.size-16 {
    font-size: 0.8rem;
}

.size-18 {
    font-size: 0.9rem;
}

.size-20 {
    font-size: 1rem;
}

/*返回图标*/
.block-a {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    z-index: 99;
}

.block {
    width: 1.275rem;
    height: 1.275rem;
}

.divNull {
    text-align: center;
    width: 100%;
}
/*没有内容显示模块样式*/
.NoContBox {
}

.NoContImg {
    width: 5rem;
    margin: 5rem auto 0;
}

    .NoContImg img {
        width: 100px;
    }

.NoContTxt {
    margin-top: 1rem;
    text-align: center;
}

.text-center {
    text-align: center;
    width: 100%;
    font-size: 0.8rem;
}

.font-bold {
    font-weight: bold
}

.Error-Mesage-Div {
    min-width: 10rem;
}


.ui-dialog .ui-dialog-button button.ui-dialog-autofocus {
    margin-left: 1.5rem
}

.notclick {
    pointer-events: none;
}