body,
p,
h1,
h2,
h3,
h4,
div {
    margin: 0;
    padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: normal;
    margin: 0;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

img {
    border: none;
    vertical-align: middle;
}

a {
    color: #333333;
    text-decoration: none;
}

i {
    font-style: normal;
}

input {
    margin: 0;
    padding: 0;
    outline: none;
}

ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

li {
    padding: 0;
    margin: 0;
}

.clearfix::after {
    content: "";
    display: block;
    clear: both;
}

.displayflex {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
}
/* 
@font-face {
    font-family: BOLD;
    src: url('../font/SOURCEHANSERIFCN-BOLD.OTF');
}

@font-face {
    font-family: EXTRALIGHT;
    src: url('../font/SOURCEHANSERIFCN-EXTRALIGHT.OTF');
}

@font-face {
    font-family: HEAVY;
    src: url('../font/SOURCEHANSERIFCN-HEAVY.OTF');
}

@font-face {
    font-family: LIGHT;
    src: url('../font/SOURCEHANSERIFCN-LIGHT.OTF');
}

@font-face {
    font-family: MEDIUM;
    src: url('../font/SOURCEHANSERIFCN-MEDIUM.OTF');
}

@font-face {
    font-family: REGULAR;
    src: url('../font/SOURCEHANSERIFCN-REGULAR.OTF');
}

@font-face {
    font-family: SEMIBOLD;
    src: url('../font/SOURCEHANSERIFCN-SEMIBOLD.OTF');
} */
.teacher_card_box {
    width: 1200px;
        margin: 10px auto 0;
}

.teacher_main_left {
    width: 880px;
    box-shadow: 0 0 4px #eeeeee;
    margin-right: 10px;
}

.page_chest {
    width: calc(100% - 40px);
    padding: 20px;
    background: white;
}

.chest_banner {
    width: 290px;
    height: 360px;
    background-image: url("../images/banner.png");
    background-size: 100% 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chest_banner p {
    font-size: 48px;
    font-family: Heavy;
    font-weight: 800;
    color: #FFFFFF;
}

.chest_notice {
    font-size: 14px;
    font-weight: bold;
    color: #333;
    line-height: 28px;
    background: #F9FBFF;
    flex: 1;
    margin-left: 10px;
    padding: 0 20px;
}

.chest_notice h4 {
    font-family: Bold;
}

.chest_notice h5 {
    font-family: SEMIBOLD;
    color: #0362D2;
    font-weight: 400;
    font-size: 14px;
}

.chest_notice_time {
    font-family: SEMIBOLD;
}

.chest_notice_time p {
    text-indent: 20px;
}

.chest_notice_time p:nth-last-child(2),
.chest_notice_time p:nth-last-child(1) {
    text-indent: 0px;
}

.article_item_box {
	background: white;
    box-shadow: 0 0 4px #eeeeee;
    margin-top: 10px;
    width: calc(100% - 40px);
    padding: 10px 15px 20px 15px;
    flex-wrap: wrap;
    width: 880px;
    justify-content: space-between;
    box-sizing: border-box;
}

.article_item:nth-last-child(2n+1) {
    margin-left: 10px;
}

.article_item {
    box-sizing: border-box;
    width: 415px;
    background: #FFFFFF;
    min-height: 470px;
    border: 1px solid #DFDFDF;
    margin-top: 10px;
}

.article_category {
    height: 50px;
    line-height: 50px;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    border-bottom: 1px solid #DFDFDF;
}

.article_category h4 {
    font-family: BOLD;
    font-size: 18px;
    font-weight: bold;
    color: #333333;
    position: relative;
}

.article_category h4::before {
    position: absolute;
    content: '';
    top: 0;
    left: -18px;
    width: 4px;
    height: 100%;
    background: #0362D2;
}

.article_category_more span:hover {
    color: #0362D2;
}

.article_category_more span {
    font-family: MEDIUM;
    font-size: 14px;
    color: #666666;
}

.article_category_more img {
    width: 7px;
    height: 13px;
    margin-left: 8px;
}

.article_main_box {
    width: calc(100% - 29px);
    padding: 0 19px 0 10px;
}

.main_recomm {
    padding: 24px 0 20px 0;
}

.main_recomm_img {
    width: 120px;
    height: 90px;
}

.main_recomm_img img {
    width: 100%;
    height: 100%;
}

.main_recomm_tit {
    flex: 1;
    margin-left: 18px;
}

.main_recomm_tit h4 {
    font-size: 16px;
    font-family: BOLD;
    font-weight: 600;
    color: #333333;
    line-height: 20px;
  	width: 100%;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.main_recomm_tit p {
    font-size: 14px;
    font-family: MEDIUM;
    font-weight: 500;
    color: #999999;
    line-height: 20px;
    margin-top: 10px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.article_unit li {
    display: flex;
    width: 100%;
    height: 34px;
    justify-content: space-between;
    font-family: MEDIUM;
    font-size: 14px;
    align-items: center;
}

.article_unit li p {
    position: relative;
    text-indent: 10px;
    font-weight: 500;
    color: #333333;
  	width: 70%;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
}

.article_unit li span {
    font-size: 14px;
    font-weight: 500;
    color: #999999;
}

.article_unit li p::before {
    position: absolute;
    content: '';
    top: calc(50% - 1px);
    left: 0;
    width: 3px;
    height: 3px;
    background-color: #333333;
    border-radius: 50%;
}

.article_unit li:hover span,
.article_unit li:hover p {
    color: #37669c;
}

.teacher_main_right {
    flex: 1;
    height: 100%;
}

.aside2,
.aside1 {
    padding: 20px 14px 10px 20px;
    background-color: white;
    /* box-shadow: 0 0 4px #eeeeee; */
}

.aside2 {
    margin-top: 10px;
    padding: 0 0 20px 0;
}

.count_down_box {
    width: 100%;
    height: 100px;
    background-image: url("../images/aside_time_bg.png");
    background-size: 100% 100%;
    font-family: HEAVY;
}

.count_down_title {
    font-size: 18px;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 40px;
    margin-left: -10px;
    text-align: center;
}

.date {
    width: 86%;
    align-items: center;
    margin: 0 auto;
}

.date li {
    font-size: 24px;
    font-weight: 800;
    color: #333333;
    line-height: 56px;
    margin-left: 34px;
}

.date li:last-child {
    font-size: 16px;
    margin-left: 36px;
}

.aside_calendar {
    margin-top: 20px;
}

.aside_calendar_item li {
    display: flex;
    justify-content: space-between;
    width: 100%;
    border-bottom: 1px solid #F1F1F1;
    align-items: center;
    padding-bottom: 3px;
}

.aside_calendar_item li:last-child {
    border-bottom: none;
}

.calendar_info {
    margin-left: 15px;
}

.calendar_info h4 {
    font-family: SEMIBOLD;
    font-size: 16px;
    font-weight: 600;
    color: #333333;
    line-height: 30px;
    position: relative;
}

.calendar_info h4::before {
    position: absolute;
    content: '';
    top: calc(50% - 2px);
    left: -15px;
    width: 4px;
    height: 4px;
    background-color: #0362D2;
    border-radius: 50%;
}

.calendar_info p {
    font-family: MEDIUM;
    font-size: 14px;
    font-weight: 500;
    color: #4e4e4e;
    line-height: 30px;
}

.calendar_btn {
    display: flex;
}

.calendar_btn div:hover {
    opacity: 0.8;
}

.calendar_btn div {
    font-family: MEDIUM;
    width: 68px;
    height: 28px;
    background: white;
    border-radius: 4px;
    text-align: center;
    line-height: 30px;
    font-size: 14px;
    font-weight: 500;
    color: #333333;
    border: 1px solid #CFCFCF;
    ;
}

.calendar_btn a:last-child div {
    margin-left: 8px;
    color: white;
    line-height: 30px;
    background: #0362D2;
}

.teacher_video_category {
    height: 50px;
    line-height: 50px;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    border-bottom: 1px solid #DFDFDF;
}

.teacher_video_category .video_img {
    width: 18px;
    height: 18px;
    display: block;
}

.teacher_video_category h4 {
    font-family: BOLD;
    font-size: 18px;
    font-weight: bold;
    color: #333333;
    margin-left: -50px;
}

.teacher_video_category_more span:hover {
    color: #0362D2;
}

.teacher_video_category_more span {
    font-family: MEDIUM;
    font-size: 14px;
    color: #666666;
}

.teacher_video_category_more img {
    width: 7px;
    height: 13px;
    margin-left: 8px;
}

.teacher_video {
    width: 270px;
    height: 120px;
    margin: 20px auto;
}

.teacher_video img {
    width: 100%;
    height: 100%;
}

.video_tit {
    font-family: BOLD;
    font-size: 16px;
    font-weight: 600;
    color: #333333;
    line-height: 22px;
    text-indent: 20px;
}

.video_info {
    width: 270px;
    margin: 12px auto 0;
    justify-content: space-between;
    font-size: 14px;
    font-family: MEDIUM;
    font-weight: 500;
    color: #999999;
}