@charset 'utf-8';
/* reset.css */
html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
    margin: 0;
    padding: 0;
    border: 0;
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
    display: block;
}

ul,
ol,
li {
    list-style: none;
}

blockquote,
q {
    quotes: none;
}

blockquote:before,
blockquote:after,
q:before,
q:after {
    content: "";
    content: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}
body{
    width: 100%;
    margin:0 auto;
    min-width: 1200px;;
}
/*把a元素更改设置成块级元素，这个根据实际情况决定要不要*/
a {
    text-decoration: none;
    display: block;
}

/*img标签要清除border。*/
/*display设为block设置为块级元素，默认为display:inline;
存在下边线多出4px状况,所以一般设为block*/
img {
    border: 0;
    display: block;
}

/*清除浮动破坏带来的塌陷问题*/
/*清除浮动的兼容IE*/
.clearfloat {
    zoom: 1;
}

.clearfloat:after {
    display: block;
    clear: both;
    content: "";
    visibility: hidden;
    height: 0;
}

/* 统一样式 */
.boz {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

.pull-left {
    float: left;
}

.pull-right {
    float: right;
}

.show {
    display: block !important;
}

.hide {
    display: none !important;
}

::-webkit-scrollbar {
    width: 5px;
    height: 5px;
    background-color: #555555;
}

::-webkit-scrollbar-track {
    border-radius: 5px;
    background-color: #ffffff;
}

::-webkit-scrollbar-thumb {
    border-radius: 5px;
    background-color: #555555;
}

@media screen and (max-width: 1920px) {
    .container {
        width: 1200px;
        height: auto;
        zoom: 1;
        margin: auto;
        cursor: default;
    }

    /* 分割线 */
    .sepa {
        width: 100%;
        height: 3px;
        padding-top: 16px;
    }

    .sepa img {
        height: 100%;
        margin: 0 auto;
    }

    .divid-line {
        width: 100%;
        height: 1px;
        background-color: #c8c8c8;
        opacity: 0.15;
    }

    .x-hide {
        transition-property: opacity, -webkit-transform;
        transition-duration: 0.15s;
        transition-timing-function: ease-out;
        -webkit-transform: scale(0.9);
        opacity: 0;
        pointer-events: none;
        visibility: hidden;
    }

    .x-show {
        opacity: 1;
        -webkit-transform: scale(1);
        pointer-events: all;
        visibility: visible;
    }

    .kefu {
        position: fixed;
        top: 50%;
        right: 36px;
        padding: 10px;
        background: #15499a;
        text-align: center;
        z-index: 100;
        display: none;
    }

    .kefu .icon {
        width: 20px;
        height: 20px;
        display: block;
        background-image: url("../images/kefu.png");
        background-size: 100% 100%;
        background-repeat: no-repeat;
        background-position: center;
    }

    .kefu a {
        width: 11px;
        font-size: 11px;
        display: block;
        font-weight: 400;
        color: #ffffff;
        margin: 5px auto;
    }

    .kefu:hover .info {
        opacity: 1;
        -webkit-transform: scale(1);
        pointer-events: all;
        visibility: visible;
    }

    .kefu .info {
        position: relative;
        transition-property: opacity, -webkit-transform;
        transition-duration: 0.15s;
        transition-timing-function: ease-out;
        -webkit-transform: scale(0.9);
        opacity: 0;
        pointer-events: none;
        visibility: hidden;
    }

    .kefu .info .info-container {
        position: absolute;
        top: -105px;
        right: 50px;
        width: 203px;
        height: 206px;
        background: #ffffff;
        box-shadow: 0px 2px 5px 2px rgba(154, 154, 154, 0.19);
        padding: 0 20px;
        text-align: left;
    }

    .kefu .info .info-container .info-item {
        padding-top: 12px;
        -webkit-box-sizing: border-box;
        -moz-box-sizing: border-box;
        box-sizing: border-box;
        font-size: 12px;
        font-weight: 400;
        color: #202122;
        line-height: 16px;
    }

    .kefu .info .info-container .info-item > div {
        padding-bottom: 4px;
    }

    .kefu .info .info-container .info-item > div i {
        font-style: unset;
        margin-right: 7px;
        width: 20px;
        height: 20px;
        line-height: 20px;
        background-repeat: no-repeat;
        background-size: 100%;
        background-position: 0px 5px;
    }

    .kefu .info .info-container .info-item > div .tel {
        background-image: url(../images/tel.png);
    }

    .kefu .info .info-container .info-item > div .phone {
        font-size: 12px;
        font-weight: 500;
        color: #15499a;
        line-height: 16px;
    }

    .kefu .info .info-container .info-item > div .wechat {
        background-image: url(../images/wechat.png);
    }

    .kefu .info .info-container .info-item > div .qrcode {
        display: inline-block;
        width: 96px;
        height: 96px;
    }

    .kefu .info .info-container .info-item > div .qrcode img {
        width: 100%;
    }

    .totop {
        width: 40px;
        height: 40px;
        cursor: pointer;
        position: fixed;
        right: 36px;
        top: calc(50% + 150px);
        background: url(../images/top.png) no-repeat center 50%;
        z-index: 100;
        display: none;
    }

    /* header */
    .header {
        padding: 3px 0;
        background: #222222;
    }

    .header .container {
        height: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        align-content: center;
        cursor: default;
    }

    .header .container span {
        font-size: 9px;
        font-weight: 500;
        color: #ffffff;
    }

    .header .container a {
        display: inline-block;
        margin: 0 4px;
        color: #ffffff;
    }

    .header .container a > .fa {
        font-size: 14px;
    }

    /* footer */
    .footer {
        background: #0b183f;
    }

    .footer .info {
        padding: 55px 0 65px;
        display: flex;
        justify-content: space-between;
    }

    .footer .info .info-item {
        color: #ffffff;
    }

    .footer .info .info-item .title {
        font-size: 16px;
        font-weight: 500;
        line-height: 30px;
    }

    .footer .info .info-item .desc {
        font-size: 16px;
        font-weight: 400;
        color: #ffffff;
        line-height: 30px;
        opacity: 0.6;
    }

    .footer .info .info-item .desc p a {
        color: #ffffff;
    }

    .footer .info .footer-logo {
        width: 127px;
        height: 27px;
    }

    .footer .info .footer-logo img {
        width: 100%;
    }

    .footer .info .qr {
        display: flex;
    }

    .footer .info .qr .qr-item {
        padding-left: 58px;
    }

    .footer .info .qr .qr-img {
        width: 125px;
        height: 125px;
        background: #ffffff;
    }

    .footer .info .qr .qr-img img {
        width: 100%;
        height: 100%;
    }

    .footer .info .qr .desc {
        font-size: 11px;
        font-weight: 400;
        line-height: 16px;
        text-align: center;
        color: #ffffff;
        padding-top: 12px;
        opacity: 0.75;
    }

    .footer .site-info {
        padding: 20px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        align-content: center;
        color: #ffffff;
        opacity: 0.7;
    }

    .footer .site-info a {
        display: inline-block;
        color: #ffffff;
    }

    .footer .site-info .friend-link {
        font-size: 11px;
        font-weight: 400;
        line-height: 16px;
    }

    .footer .site-info .friend-link a {
        margin: 0 10px;
    }

    .footer .site-info .beian {
        font-size: 12px;
        font-weight: 400;
        line-height: 17px;
    }

    .footer .site-info .beian a {
        margin-left: 50px;
    }

    .banner {
        width: 100%;
        position: relative;
    }

    .banner .swiper-container {
        width: 100%;
        top: -2px;
        left: -2px;
    }

    .banner .swiper-container .swiper-wrapper {
        width: 100%;
    }

    .banner .swiper-container .swiper-wrapper img {
        width: 100%;
        overflow: hidden;
    }

    .banner .swiper-container .swiper-pagination {
        border: 0;
        position: absolute;
        bottom: 30px !important;
        width: 100%;
        z-index: 2;
        text-align: center;
    }

    .banner .swiper-container .swiper-pagination .swiper-pagination-bullet {
        margin-right: 10px;
        width: 24px;
        height: 3px;
        background: #c8c8c8;
        border-radius: unset;
    }

    .banner .swiper-container .swiper-pagination .swiper-pagination-bullet-active {
        width: 36px;
        height: 3px;
        background: #ffffff;
        border-radius: unset;
    }

    .banner .nav {
        width: 100%;
        background: #0b183f;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 9;
        padding: 11px;
    }

    .banner .nav .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        align-content: center;
    }

    .banner .nav .container .nav-logo {
        width: 126px;
        height: 26px;
    }

    .banner .nav .container .nav-logo img {
        width: 100%;
        height: 100%;
    }

    .banner .nav .container .nav-container {
        width: 750px;
        height: 32px;
        margin-left: 70px;
        display: flex;
        justify-content: space-around;
        align-items: center;
    }

    .banner .nav .container .nav-container div.nav-item {
        width: 100%;
        text-align: center;
        position: relative;
        font-family: "微软雅黑";
        font-size: 14px;
    }

    .banner .nav .container .nav-container div.nav-item a {
        display: inline-block;
        height: 28px;
        color: #ffffff;
        -webkit-box-sizing: border-box;
        -moz-box-sizing: border-box;
        box-sizing: border-box;
    }

    .banner .nav .container .nav-container div.nav-item.active a {
        border-bottom: 3px solid #ffffff;
    }

    .banner .nav .container .nav-container div.nav-item .nav-child {
        position: absolute;
        top: 28px;
        background: #ffffff;
        text-align: center;
        padding: 5px 0;
    }

    .banner .nav .container .nav-container div.nav-item .nav-child a {
        width: 100%;
        margin: 5px 0;
        font-size: 14px;
        color: #303233;
    }

    .banner .nav .container .nav-container div.nav-item .nav-child a.active {
        color: #15499a;
    }

    .banner .nav .container .nav-container div.nav-item .x-hide {
        transition-property: opacity, -webkit-transform;
        transition-duration: 0.15s;
        transition-timing-function: ease-out;
        -webkit-transform: scale(0.9);
        opacity: 0;
        pointer-events: none;
        visibility: hidden;
    }

    .banner .nav .container .nav-container div.nav-item .x-show {
        opacity: 1;
        -webkit-transform: scale(1);
        pointer-events: all;
        visibility: visible;
    }

    .banner .nav .container .search {
        margin-left: auto;
        width: 213px;
        display: inherit;
        border-collapse: separate;
        border-radius: 2px;
        border: 1px solid #ffffff;
    }

    .banner .nav .container .search .form-control {
        background: transparent;
        border: 0;
        outline: 0;
        font-size: 12px;
        color: #ffffff;
        font-family: "微软雅黑";
        -webkit-box-shadow: none;
        box-shadow: none;
        height: 25px;
        line-height: 25px;
        padding: 0 20px 0 20px;
    }

    .banner .nav .container .search .form-control::-webkit-input-placeholder {
        color: #ffffff;
    }

    .banner .nav .container .search .form-control::-moz-placeholder {
        color: #ffffff;
    }

    .banner .nav .container .search .form-control:-ms-input-placeholder {
        color: #ffffff;
    }

    .banner .nav .container .search .input-group-addo {
        display: table-cell;
        width: 1%;
        white-space: nowrap;
        vertical-align: middle;
        padding: 6px 12px;
        font-size: 14px;
        font-weight: normal;
        line-height: 1;
        color: #555;
        text-align: center;
        background-color: #eee;
        border: 1px solid #ccc;
        border-radius: 4px;
        border-bottom-left-radius: 0;
        border-top-left-radius: 0;
        background: transparent;
        border: 0;
        cursor: pointer;
    }

    .banner .nav .container .search .input-group-addo img {
        vertical-align: middle;
        width: 14px;
    }

    .banner .nav-banner {
        background: transparent;
    }

    .banner .nav-fixed {
        background: #0b183f;
        position: fixed;
    }

    .banner .nav-banner-item {
        width: 100%;
        height: 259px;
        background-image: url("../images/contact.png");
        background-size: 100% 100%;
        background-repeat: no-repeat;
        text-align: center;
    }

    .banner .nav-banner-item img {
        height: 100%;
    }

    .banner .nav-banner-item .nav-content {
        padding-top: 118px;
    }

    .banner .nav-banner-item .nav-content .nav-title {
        font-size: 36px;
        font-weight: 500;
        color: #ffffff;
        line-height: 51px;
    }

    .banner .nav-banner-item .nav-content .nav-desc {
        padding-top: 27px;
        font-size: 12px;
        font-weight: 400;
        color: #ffffff;
        line-height: 17px;
    }

    .header-item {
        padding-top: 62px;
        padding-bottom: 47px;
    }

    .header-item .header-title {
        font-size: 25px;
        font-weight: 500;
        color: #303233;
        line-height: 35px;
        text-align: center;
    }

    .more {
        margin-top: 31px;
        text-align: center;
    }

    .more a {
        font-size: 17px;
        font-weight: 400;
        color: #15499a;
    }

    .more a .more-image {
        width: 8px;
        height: 12px;
        display: inline-block;
    }

    .index-container .news {
        width: 100%;
        padding-bottom: 70px;
    }

    .index-container .news .news-content {
        width: 100%;
        display: flex;
        justify-content: space-between;
    }

    .index-container .news .news-content .news-item {
        width: 385px;
    }

    .index-container .news .news-content .news-item .image {
        height: 249px;
    }

    .index-container .news .news-content .news-item .image img {
        width: 100%;
        height: 100%;
        max-width: 385px;
        max-height: 249px;
    }

    .index-container .news .news-content .news-item .desc {
        background: #f4f6fd;
        padding: 20px 25px 50px;
    }

    .index-container .news .news-content .news-item .desc > .date {
        font-size: 16px;
        font-weight: 400;
        color: #909699;
        line-height: 22px;
    }

    .index-container .news .news-content .news-item .desc > .title {
        color: #202122;
        font-size: 19px;
        font-weight: 400;
        line-height: 30px;

        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;

        /*display: -webkit-box;*/
        /*-webkit-box-orient: vertical;*/
        /*-webkit-line-clamp: 2;*/
    }

    .index-container .program {
        width: 100%;
        background: #f9f9f9;
        padding-bottom: 70px;
    }

    .index-container .program .program-content .program-item {
        height: 413px;
        display: flex;
        background: #ffffff;
        box-shadow: 0px 2px 6px 2px rgba(154, 154, 154, 0.19);
        margin-top: 30px;
    }

    .index-container .program .program-content .program-item .program-desc {
        flex: 1.26471;
        background: #ffffff;
        padding: 47px 67px 47px 72px;
    }

    .index-container .program .program-content .program-item .program-desc .site-name {
        font-size: 19px;
        font-weight: 400;
        color: #909699;
        line-height: 26px;
    }

    .index-container .program .program-content .program-item .program-desc .site-title {
        font-size: 25px;
        font-weight: 500;
        color: #202122;
        line-height: 35px;
        margin-top: 15px;
    }

    .index-container .program .program-content .program-item .program-desc .site-divid-line {
        width: 55px;
        height: 2px;
        background: #303233;
        margin: 7px 0;
    }

    .index-container .program .program-content .program-item .program-desc .site-content {
        max-height: 180px;
        height: 180px;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-box-orient: vertical;
    }

    .index-container .program .program-content .program-item .program-desc .site-content p {
        font-size: 12px;
        font-weight: 400;
        color: #202122;
        /*line-height: 19px;*/
        margin-top: 12px;

        line-height: 33px;
        text-indent: 2em;
    }

    .index-container .program .program-content .program-item .program-desc .site-link {
        width: 90px;
        height: 31px;
        line-height: 31px;
        border-radius: 15px;
        border: 1px solid #15499a;
        text-align: center;
        margin-top: 12px;
    }

    .index-container .program .program-content .program-item .program-desc .site-link a {
        font-size: 14px;
        font-weight: 400;
        color: #15499a;
    }

    .index-container .program .program-content .program-item .program-image {
        height: 413px;
    }

    .index-container .program .program-content .program-item .program-image img {
        height: 100%;
    }

    .index-container .course {
        width: 100%;
        background: #ffffff;
        padding: 30px 0 70px;
    }

    .index-container .course .course-content {
        display: block;
        margin-top: 24px;
    }

    .index-container .course .course-content .course-video {
        width: 100%;
        height: 522px;
        display: flex;
    }

    .index-container .course .course-content .course-video .video {
        flex: 3.4444;
    }

    .index-container .course .course-content .course-video .video-info {
        flex: 1;
        background: #131313;
    }

    .index-container .course .course-content .course-video .video-info .video-title {
        font-size: 12px;
        font-weight: 500;
        color: #ffffff;
        padding: 10px 20px 0 23px;
    }

    .index-container .course .course-content .course-video .video-info .video-list {
        padding: 10px 20px 0 23px;
        max-height: 480px;
        overflow: auto;
        overflow-y: scroll;
    }

    .index-container .course .course-content .course-video .video-info .video-list li {
        height: 58px;
        border-bottom: 1px solid #ffffff;
    }

    .index-container .course .course-content .course-video .video-info .video-list a {
        height: 100%;
        padding-top: 12px;
    }

    .index-container .course .course-content .course-video .video-info .video-list a > .type {
        width: 29px;
        height: 16px;
        line-height: 16px;
        background: #777777;
        border-radius: 2px;
        font-size: 11px;
        font-weight: 400;
        color: #202122;
        text-align: center;
    }

    .index-container .course .course-content .course-video .video-info .video-list a > .title {
        margin-left: 12px;
        font-size: 17px;
        font-weight: 400;
        color: #ffffff;
        line-height: 17px;
		width:185px;
		text-align:left;
		margin-top: -20px;
	}
	
    .index-container .course .course-content .course-video .video-info .video-list a > .title p {
        margin-bottom: 5px;
		margin-right: 8px;
		white-space: nowrap;
		text-overflow:ellipsis;
		overflow:hidden;
    }

    .index-container .course .course-content .course-video .video-info .video-list a > .active {
        color: #23b8ff;
        line-height: 17px;
    }

    .index-container .course .course-content .course-video .video-info .video-list::-webkit-scrollbar {
        width: 5px;
        height: 5px;
        background-color: #555555;
    }

    .index-container .course .course-content .course-video .video-info .video-list::-webkit-scrollbar-track {
        border-radius: 5px;
        background-color: #ffffff;
    }

    .index-container .course .course-content .course-video .video-info .video-list ::-webkit-scrollbar {
        width: 5px;
        height: 5px;
        background-color: #555555;
    }

    .index-container .course .course-content .course-video .video-info .video-list::-webkit-scrollbar-track {
        border-radius: 5px;
        background-color: #ffffff;
    }

    .index-container .course .course-content .course-video .video-info .video-list::-webkit-scrollbar-thumb {
        border-radius: 5px;
        background-color: #555555;
    }

    .index-container .course .course-content .course-info {
        height: 52px;
        background: #232323;
        padding: 10px;
    }

    .index-container .course .course-content .course-info .course-title {
        font-size: 19px;
        font-weight: 400;
        color: #ffffff;
    }

    .index-container .course .course-content .course-info .course-title .course-free {
        color: #f5a010;
    }

    .index-container .course .course-content .course-info .course-view {
        font-size: 11px;
        font-weight: 400;
        color: #ffffff;
        margin-top: 10px;
    }

    /* 联系我们 */
    .contact-nav {
        background-image: url("images/about.png");
        background-size: 100% 100%;
        background-repeat: no-repeat;
    }

    .contact-container .container .contact-content {
        width: 935px;
        margin: 0 auto;
    }

    .contact-container .container .contact-content .map {
        width: 100%;
        height: 242px;
    }

    .contact-container .container .contact-content .link-info {
        width: 100%;
        padding: 50px 0 58px;
        display: flex;
        justify-content: space-between;
    }

    .contact-container .container .contact-content .link-info .info {
        padding-top: 4px;
    }

    .contact-container .container .contact-content .link-info .info .info-head {
        font-size: 16px;
        font-weight: 500;
        color: #202122;
        line-height: 30px;
    }

    .contact-container .container .contact-content .link-info .info .info-content {
        padding-top: 4px;
    }

    .contact-container .container .contact-content .link-info .info .info-content p {
        font-size: 16px;
        font-weight: 400;
        color: #202122;
        line-height: 30px;
    }

    .contact-container .container .contact-content .link-info .qrcode {
        display: flex;
    }

    .contact-container .container .contact-content .link-info .qrcode .qrcode-item {
        margin-left: 60px;
    }

    .contact-container .container .contact-content .link-info .qrcode .qrcode-item .qrcode-img {
        width: 125px;
        height: 125px;
    }

    .contact-container .container .contact-content .link-info .qrcode .qrcode-item .qrcode-img img {
        width: 100%;
        height: 100%;
    }

    .contact-container .container .contact-content .link-info .qrcode .qrcode-item .desc {
        font-size: 11px;
        font-weight: 400;
        color: #202122;
        line-height: 16px;
        text-align: center;
        opacity: 0.75;
        padding-top: 12px;
    }

    .news-nav {
        background-image: url("images/about.png");
        background-size: 100% 100%;
        background-repeat: no-repeat;
    }

    .news-container {
        padding-top: 22px;
    }

    .news-container .news-content {
        width: 966px;
        margin: 0 auto;
        background: #ffffff;
    }

    .news-container .news-content .news-item {
        width: 100%;
        margin-top: 4px;
        padding: 16px;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .news-container .news-content .news-item:hover {
        box-shadow: 0px 2px 5px 2px rgba(154, 154, 154, 0.5);
    }

    .news-container .news-content .news-item:hover .news-title {
        color: #15499a !important;
    }

    .news-container .news-content .news-item .news-img {
        width: 277px;
        height: 179px;
    }

    .news-container .news-content .news-item .news-img img {
        display: inline-block;
        width: 100%;
        height: 100%;
        margin: 0 auto;
    }

    .news-container .news-content .news-item .news-content {
        width: 484px;
        height: 179px;
        line-height: 28px;
        margin-left: 16px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
    }

    .news-container .news-content .news-item .news-content {
        margin-left: 100px;
    }

    .news-container .news-content .news-item .news-content .news-title {
        font-size: 17px;
        font-weight: 400;
        color: #202122;
        line-height: 22px;
    }

    .news-container .news-content .news-item .news-content .news-description {
        margin-top: 20px;
        font-size: 12px;
        font-weight: 400;
        color: #606466;
        line-height: 19px;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
    }

    .news-container .news-content .news-item .news-content .news-date {
        margin-top: auto;
        font-size: 9px;
        font-weight: 400;
        color: #909699;
        line-height: 13px;
    }

    .page-container {
        width: 100%;
        padding: 90px 0;
        text-align: center;
    }

    .page-container .page-common a,
    .page-container .page-common span {
        display: inline-block;
        height: 33px;
        text-decoration: none;
        font-size: 12px;
        font-weight: 500;
        color: #909699;
        text-align: center;
        line-height: 33px;
        margin-left: 2px;
        padding: 0 13px;
        cursor: pointer;
    }

    .page-container .page-common span.page-curr {
        background: #15499a;
        color: #ffffff;
    }

    .page-container .page-common span.page-spr {
        cursor: unset;
    }

    .page-container .page-common .page-prev > .fa,
    .page-container .page-common .page-next > .fa {
        font-size: 20px;
    }

    .detail-container .content-container {
        width: 856px;
        margin: 50px auto 0;
    }

    .detail-container .content-container .title {
        font-size: 34px;
        font-weight: 500;
        color: #202122;
        line-height: 53px;
        padding-bottom: 35px;
    }

    .detail-container .content-container .date {
        font-size: 14px;
        font-weight: 400;
        color: #909699;
        line-height: 19px;
        padding-bottom: 54px;
    }

    .detail-container .content-container .content p {
        font-size: 17px;
        font-weight: 400;
        color: #606466;
        line-height: 28px;
        margin-bottom: 1em;
    }

    .detail-container .content-container .content p img {
        width: 100%;
        height: 100%;
    }

    .detail-container .content-container .page-container .prev-page,
    .detail-container .content-container .page-container .next-page {
        font-size: 17px;
        font-weight: 400;
        color: #15499a;
        line-height: 23px;
        text-align: left;
        margin-top: 20px;
    }

    .about-nav {
        background-image: url("images/about.png");
        background-size: 100% 100%;
        background-repeat: no-repeat;
    }

    .about-container .header-item {
        text-align: center;
    }

    .about-container .header-item .logo {
        width: 80px;
        height: 101px;
        display: inline-block;
        vertical-align: middle;
    }

    .about-container .header-item .logo img {
        width: 100%;
        display: inline-block;
        vertical-align: middle;
    }

    .about-container .about .about-content {
        padding-bottom: 82px;
    }

    .about-container .about .about-content .content {
        font-size: 16px;
        font-weight: 400;
        color: #202122;
        line-height: 25px;
        text-align: center;
    }

    .about-container .about .about-content .intro-content {
        display: flex;
        justify-content: space-between;
        text-align: center;
        padding-top: 47px;
    }

    .about-container .about .about-content .intro-content .intro-item {
        width: 385px;
        background: #f9f9f9;
        box-shadow: 0px 2px 5px 2px rgba(154, 154, 154, 0.19);
    }

    .about-container .about .about-content .intro-content .intro-item .img {
        height: 318px;
        max-width: 385px;
        max-height: 318px;
    }

    .about-container .about .about-content .intro-content .intro-item .img img {
        width: 100%;
        height: 100%;
    }

    .about-container .about .about-content .intro-content .intro-item .title {
        font-size: 16px;
        font-weight: 500;
        color: #202122;
        line-height: 30px;
        padding: 20px;
    }

    .about-container .culture {
        background: #f9f9f9;
    }

    .about-container .culture .culture-content {
        display: flex;
        justify-content: space-between;
    }

    .about-container .culture .culture-content .culture-item {
        width: 210px;
        text-align: center;
        padding-bottom: 72px;
    }

    .about-container .culture .culture-content .culture-item .img-box {
        width: 210px;
        height: 210px;
        line-height: 210px;
        background-color: #ffffff;
        box-shadow: 0px 1px 10px 0px rgba(20, 58, 155, 0.18);
        vertical-align: middle;
    }

    .about-container .culture .culture-content .culture-item .img-box img {
        display: inline-block;
        vertical-align: middle;
        width: 90px;
        height: 90px;
    }

    .about-container .culture .culture-content .culture-item .title {
        font-size: 22px;
        font-weight: 400;
        color: #202122;
        line-height: 31px;
        padding: 15px 0 11px;
    }

    .about-container .culture .culture-content .culture-item .desc {
        font-size: 14px;
        font-weight: 400;
        color: #606466;
        line-height: 19px;
    }

    .about-container .unit .unit-content {
        padding-bottom: 90px;
    }

    .about-container .unit .unit-content .swiper-container {
        width: 100%;
        height: auto;
    }

    .about-container .unit .unit-content .swiper-container .swiper-slide {
        display: flex;
        flex-wrap: wrap;
        padding-bottom: 60px;
    }

    .about-container .unit .unit-content .swiper-container .swiper-slide .unit-item {
        width: 20%;
        text-align: center;
        vertical-align: middle;
    }

    .about-container .unit .unit-content .swiper-container .swiper-slide .unit-item .unit-img {
        width: 195px;
        height: 71px;
        line-height: 71px;
        margin: 0 auto;
    }

    .about-container .unit .unit-content .swiper-container .swiper-slide .unit-item .unit-img img {
        display: inline-block;
        vertical-align: middle;
        width: 173px;
        height: 62px;
    }

    .enterprise-nav {
        background-image: url("images/about.png");
        background-size: 100% 100%;
        background-repeat: no-repeat;
    }

    .enterprise-container .quali .quali-content {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        align-content: center;
    }

    .enterprise-container .quali .quali-content .quali-item {
        width: 366px;
        background: #ffffff;
        margin-bottom: 32px;
        margin-right: 30px;
        padding: 21px;
        box-shadow: 0px 2px 6px 2px rgba(154, 154, 154, 0.19);
        -webkit-box-sizing: border-box;
        -moz-box-sizing: border-box;
        box-sizing: border-box;
    }

    .enterprise-container .quali .quali-content .quali-item .title {
        font-size: 14px;
        font-weight: 500;
        color: #202122;
        line-height: 19px;
    }

    .enterprise-container .quali .quali-content .quali-item .sepa {
        width: 23px;
        text-align: left;
        margin: 7px 0 15px;
    }

    .enterprise-container .quali .quali-content .quali-item .content {
        width: 329px;
        height: 220px;
    }

    .enterprise-container .quali .quali-content .quali-item .content img {
        max-width: 329px;
        max-height: 220px;
    }

    .enterprise-container .cert {
        background: #f9f9f9;
        margin-top: 50px;
        padding-bottom: 60px;
    }

    .enterprise-container .cert .cert-content {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        align-content: center;
    }

    .enterprise-container .cert .cert-content .cert-item {
        width: 366px;
        background: #ffffff;
        margin-bottom: 32px;
        margin-right: 30px;
        padding: 21px;
        box-shadow: 0px 2px 6px 2px rgba(154, 154, 154, 0.19);
        -webkit-box-sizing: border-box;
        -moz-box-sizing: border-box;
        box-sizing: border-box;
    }

    .enterprise-container .cert .cert-content .cert-item .title {
        font-size: 14px;
        font-weight: 500;
        color: #202122;
        line-height: 19px;
    }

    .enterprise-container .cert .cert-content .cert-item .sepa {
        width: 23px;
        text-align: left;
        margin: 7px 0 15px;
    }

    .enterprise-container .cert .cert-content .cert-item .content {
        width: 316px;
        height: 433px;
    }

    .enterprise-container .cert .cert-content .cert-item .content img {
        width: 100%;
    }

    .teacher-nav {
        background-image: url("images/about.png");
        background-size: 100% 100%;
        background-repeat: no-repeat;
    }

    .teacher-container .adv .adv-content {
        padding-bottom: 60px;
        text-align: center;
    }

    .teacher-container .adv .adv-content p {
        font-size: 16px;
        font-weight: 400;
        color: #202122;
        line-height: 28px;
    }

    .teacher-container .cooperation {
        background: #f9f9f9;
    }

    .teacher-container .cooperation .cooperation-content {
        width: 100%;
        padding-bottom: 55px;
        display: flex;
        justify-content: center;
    }

    .teacher-container .cooperation .cooperation-content .cooperation-item {
        width: 195px;
        height: 79px;
        background: #ffffff;
        margin: 0 18px;
        display: inline-block;
        vertical-align: middle;
    }

    .teacher-container .cooperation .cooperation-content .cooperation-item img {
        width: 100%;
        max-width: 195px;
        max-height: 79px;
        display: inline-block;
        vertical-align: middle;
    }

    .teacher-container .teacher {
        background-image: url("../images/teachbg.png");
        background-size: 100% 100%;
        background-repeat: no-repeat;
        background-position: center;
    }

    .teacher-container .teacher .header-item .header-title {
        color: #ffffff;
    }

    .teacher-container .teacher .header-item .header-desc {
        font-size: 16px;
        font-weight: 400;
        color: #ffffff;
        line-height: 22px;
        text-align: center;
        margin-top: 20px;
    }

    .teacher-container .teacher .teacher-content {
        width: 100%;
        padding: 60px 0;
    }

    .teacher-container .teacher .teacher-content .swiper-container {
        height: auto;
        --swiper-navigation-size: 0px;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper {
        margin-left: 50px;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide {
        width: 195px;
        border-radius: 4px;
        background: #ffffff;
        text-align: center;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide .teacher-item {
        width: 100%;
        height: 286px;
        cursor: default;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide .teacher-item .info {
        width: 100%;
        height: 100%;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide .teacher-item .info .avatar {
        width: 109px;
        height: 109px;
        margin-top: 30px;
        display: inline-block;
        vertical-align: middle;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide .teacher-item .info .avatar img {
        width: 100%;
        max-width: 109px;
        max-height: 109px;
        border-radius: 50%;
        display: inline-block;
        vertical-align: middle;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide .teacher-item .info .name {
        font-size: 20px;
        font-weight: 500;
        color: #202122;
        line-height: 28px;
        margin-top: 20px;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide .teacher-item .info .pro {
        font-size: 14px;
        font-weight: 400;
        color: #606466;
        line-height: 20px;
        margin-top: 20px;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide .teacher-item .info .category {
        font-size: 14px;
        font-weight: 400;
        color: #606466;
        line-height: 20px;
        margin-top: 20px;
        margin-bottom: 20px;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide .teacher-item .desc {
        width: 100%;
        height: 100%;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide .teacher-item .desc .name {
        font-size: 20px;
        font-weight: 500;
        color: #202122;
        line-height: 28px;
        padding: 30px 0 20px;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-wrapper .swiper-slide .teacher-item .desc .description {
        font-size: 14px;
        font-weight: 400;
        color: #606466;
        line-height: 22px;
        padding: 0 10px;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 8;
        -webkit-box-orient: vertical;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-button-prev {
        width: 30px;
        height: 30px;
        background-image: url("../images/left.png");
        background-size: 100% 100%;
        background-repeat: no-repeat;
        background-position: center;
    }

    .teacher-container .teacher .teacher-content .swiper-container .swiper-button-next {
        width: 30px;
        height: 30px;
        background-image: url("../images/right.png");
        background-size: 100% 100%;
        background-repeat: no-repeat;
        background-position: center;
    }

    .course-container {
        background: #131313;
        width: 100%;
        height: calc(100vh - 54px);
        display: flex;
        justify-content: space-between;
        color: #ffffff !important;
    }

    .course-container .video-container {
        width: 970px;
        height: 100%;
    }

    .course-container .list {
        width: 220px;
        height: 100%;
    }
}