* {
    font-family: "微软雅黑", Arial;
}

@media (max-width:767.98px) {
    section#html-area div.col-md-6:last-child {
        margin-top: 10px;
    }
    section#boots-area div.col-md-6:last-child,
    section#download-area div.col-md-6:last-child {
        margin-top: 20px;
    }
}

html,
body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    outline: none;
    height: 100vh;
    width: 100%;
    /* overflow-x: hidden; */
}

a {
    text-decoration: none;
    color: #333;
    text-decoration: none
}

a:link {
    text-decoration: none;
}

a:visited {
    color: #333;
    text-decoration: none;
}

a:focus {
    color: #000000;
    text-decoration: underline;
    outline: none;
    -moz-outline: none
}

body {
    overflow-x: hidden;
}

.header {
    height: 585px;
    background-image: url('../img/top_banner.png');
    background-repeat: no-repeat;
    background-size: cover;
}

#Time {
    text-align: right !important;
}

.header_title {
    height: 120px;
    line-height: 120px;
}

.logo {
    height: 45px;
    background-image: url('../img/logo.png');
    background-repeat: no-repeat;
}

.navbar {
    /* margin-top: 150px; */
    background-color: #1172db;
}

.nav_tag {
    /* width: px; */
    text-align: center;
    box-sizing: border-box;
    border-bottom: 5px solid;
    border-bottom-color: rgba(0, 0, 0, 0);
}

.nav-item {
    width: 14% !important;
}

.nav_tag:hover {
    /* background-color: #a0a0a0; */
    color: rgba(0, 0, 0, 1);
    font-weight: 700;
    border-bottom: 5px solid #a0a0a0;
}

section#ad-area {
    width: 100%;
    height: 100%;
    color: #ffffff;
    /* margin-top: 68px; */
}

.content {
    margin-top: 64px;
}

.carousel-item {
    height: 540px;
}

.carousel-item img {
    width: 100%;
    height: 100%;
}

.new_course {
    /* height: 640px; */
    background-color: #f0f0f0;
}

.recommend_course {
    /* background-color: #fff; */
}

.slideshow {
    width: 65%;
    margin: 0 auto;
}

.radius {
    border-radius: 10px;
}

.page-link:focus {
    box-shadow: none;
}


/* 用户下拉菜单 */

.dropdown-item {
    height: 42px;
}

.dropdown-item:hover {
    background-color: #cce5ff;
}


/* 提示框样式 */

.toast {
    width: 240px;
}

.course_list_item:hover {
    box-shadow: 10px 5px 15px #363636;
}

.teacher_list_item:hover {
    box-shadow: 10px 5px 15px #363636;
}

#arlert_box {
    position: absolute;
    top: 15%;
    left: 50%;
    width: 240px;
    transform: translate(-50%, -50%);
    text-align: center;
}


/* 个人信息页面 */

.info-box div {
    width: 708px;
    margin-left: 8px;
    line-height: 20px;
    padding: 20px 0 20px 22px;
}

.line {
    height: 1px;
    background-color: #d0d6d9;
    margin-top: 12px;
}

.pull-right {
    float: right;
}

.course_teacher:hover {
    cursor: pointer;
}


/* 错误提示信息 */

.msg {
    /* color: #ea4c37; */
    color: #a0a0a0 !important;
    font-size: 14px;
    /* padding-left: 40px; */
    padding-top: 10px;
    clear: both;
    font-weight: bold;
}

.msg a {
    color: #707070 !important;
}

.pull-left {
    float: left;
}

.alert {
    position: sticky;
    top: 120px;
    left: 50%;
    right: 50%;
}


/* 排行榜样式 */

.title {
    width: auto;
    height: 42px;
    line-height: 42px;
    background-color: #f8f8f8;
    font-weight: 700;
}

.rank1 {
    width: 20%;
    margin-left: 20px;
}

.rank2 {
    width: 46.66%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rank3 {
    width: 33.33%;
}

.course1_name:hover {
    cursor: pointer;
}

.course_name :hover {
    cursor: pointer;
}

.rank_title {
    display: flex;
}

.main-title {
    position: relative;
    display: inline-block;
    padding: 0 10px;
    font-size: 20px;
    font-weight: 700;
    margin-right: 10px;
    cursor: pointer;
}

.list-group-item {
    display: flex;
}


/* 实时数据 */

ul {
    list-style: none;
}

.li {
    float: left;
    width: 33.33%;
    height: 80px;
    padding-left: 120px;
}


/* .realTimeList {
    line-height: 1;
    margin-top: 5px;
    font-size: 16px;
    background-color: #f6f6f6;
} */

.realTimeList {
    margin-top: 5px;
    zoom: 1;
    background: #f6f6f6;
    padding: 35px 0 120px;
}

.labelName {
    line-height: 1;
    margin-top: 5px;
    font-size: 16px;
    color: #999;
}

.count {
    margin-top: 20px;
    font-size: 36px;
    font-weight: 700;
    line-height: 1;
}


/* 分页器样式调整 */

.spiritPagination {
    display: flex;
    flex-direction: column;
    width: 100%;
    text-align: center;
}

.pgNext {
    width: 35px;
    border: 1px solid #cbe5ff
}

.from_msg {
   color: #3c84c6;
}