.YUGO-mp-manage-content {
    width: 1200px;
    padding-bottom: 30px;
    margin: auto;
}

.YUGO-MP-main {
    background: #F7F7F7;
    overflow: hidden;
}

.YUGO-lecture-header {
    width: 100%;
    height: 360px;
    overflow: hidden;
    position: relative;
}

.YUGO-lecture-header>img {
    position: absolute;
    height: 100%;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.YUGO-lecture-search {
    width: 738px;
    position: absolute;
    left: 50%;
    top: 237px;
    transform: translateX(-50%);
    z-index: 10;
}

.YUGO-lecture-search-content {
    width: 100%;
    height: 100%;
    position: relative;
}

.YUGO-lecture-search-main {
    width: 575px;
    height: 54px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #ffffff;
    border-radius: 7px;
    overflow: hidden;
    font-size: 0;
}

.YUGO-lecture-search-main input {
    width: calc(100% - 60px);
    height: 100%;
    color: #171717;
    font-size: 16px;
    padding-left: 22px;
    padding-right: 22px;
    display: inline-block;
    vertical-align: top;
    border: none;
    outline: none;
}

.YUGO-lecture-search-btn {
    width: 60px;
    height: 100%;
    background: #10B4B5;
    display: inline-block;
    vertical-align: top;
    cursor: pointer;
}

.YUGO-lecture-search-btn img {
    width: 22px;
    height: 22px;
    margin-top: 15.5px;
    margin-left: 18px;
}

.YUGO-lecture-nav {
    width: 100%;
    padding-left: 30px;
    padding-right: 30px;
    padding-top: 40px;
    padding-bottom: 12px;
    margin-top: 25px;
    background: #ffffff;
    border-radius: 7px;
    font-size: 0;
}

.YUGO-lecture-nav-right {
    width: calc(100% - 97px);
    display: inline-block;
    vertical-align: top;
}

.YUGO-lecture-nav-right ul li {
    color: #666666;
    font-size: 14px;
    line-height: 14px;
    margin-bottom: 24px !important;
    margin-right: 30px;
    cursor: pointer;
    display: inline-block;
}

.lec-active {
    color: #10B4B5 !important;
    position: relative;
}

.lec-active::after {
    position: absolute;
    height: 32px;
    width: calc(100% + 20px);
    background: rgba(16, 180, 181, 0.1);
    content: '';
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.YUGO-lecture-nav-left {
    width: 97px;
    display: inline-block;
    vertical-align: top;
}

.YUGO-lecture-nav-left p {
    color: #171717;
    font-size: 16px;
    line-height: 16px;
}

.YUGO-mp-manage-list {
    width: 100%;
    margin-top: 26px;
}

.YUGO-lecture-subtitle {
    width: 100%;
    height: 27px;
    margin-top: 44px;
    position: relative;
}

.YUGO-lecture-subtitle img {
    width: 208px;
    height: 27px;
    display: block;
}

.YUGO-lecture-more {
    color: #171717;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 0px;
    display: block;
    cursor: pointer;
}

.YUGO-lecture-more p {
    font-size: 18px;
    line-height: 18px;
    margin-bottom: 0px;
    display: inline-block;
    vertical-align: top;
    cursor: pointer;
}

.YUGO-lecture-more p:hover {
    color: #10B4B5;
}

.YUGO-lecture-more i {
    font-size: 20px;
    margin-left: 20px;
    line-height: 18px;
    display: inline-block;
}

.YUGO-mp-course-list {
    width: 100%;
    font-size: 0;
}


.YUGO-course-child {
    width: 284px;
    height: 278px;
    display: inline-block;
    vertical-align: top;
    border-radius: 5px;
    overflow: hidden;
    margin-top: 20px;
    /* margin-left: 20px;
    margin-top: 18px; */
}

.YUGO-mp-course-list>a {
    margin-left: 20px;
    margin-top: 18px;

}

.YUGO-mp-course-list>a:nth-child(4n+1) {
    margin-left: 0px;
}

.YUGO-mp-course-list>a:nth-child(1),
.YUGO-mp-course-list>a:nth-child(2),
.YUGO-mp-course-list>a:nth-child(3),
.YUGO-mp-course-list>a:nth-child(4) {
    margin-top: 0px;
}

.YUGO-course-child-img {
    width: 100%;
    height: 162px;
    background-repeat: no-repeat !important;
    background-size: 100% 100% !important;
    position: relative;
}

.YUGO-course-child-img img {
    width: 59px;
    height: 25px;
    position: absolute;
    top: 0px;
    right: 0px;
}


/* 封面样式 */

.YUGO-course-child-img1 p {
    font-size: 24px;
    font-weight: 600;
    position: absolute;
    color: #133A4A;
    top: 50%;
    transform: translateY(-50%);
    line-height: 34px;
    left: 32px;
    cursor: pointer;
    opacity: 0.8;
}

.YUGO-course-child-img12 p,
.YUGO-course-child-img3 p,
.YUGO-course-child-img9 p {
    font-size: 24px;
    font-weight: 600;
    position: absolute;
    color: #ffffff;
    top: 50%;
    transform: translateY(-50%);
    line-height: 34px;
    left: 28px;
    cursor: pointer;
}

.YUGO-course-child-img10 p {
    font-size: 24px;
    font-weight: 600;
    position: absolute;
    color: #ffffff;
    top: 50%;
    transform: translateY(-50%);
    line-height: 34px;
    left: 30px;
    cursor: pointer;
}

.YUGO-course-child-img11 p {
    font-size: 24px;
    font-weight: 600;
    position: absolute;
    color: #ffffff;
    top: 50%;
    transform: translateY(-50%);
    line-height: 34px;
    left: 30px;
    cursor: pointer;
}

.YUGO-course-child-img2 p,
.YUGO-course-child-img5 p,
.YUGO-course-child-img4 p {
    font-size: 24px;
    font-weight: 600;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    line-height: 34px;
    color: #ffffff;
    left: 20px;
}

.YUGO-course-child-img6 p {
    font-size: 24px;
    font-weight: 600;
    position: absolute;
    text-align: center;
    top: 50%;
    transform: translate(-50%, -50%);
    line-height: 34px;
    color: #ffffff;
    left: 50%;
    white-space: nowrap;
}

.YUGO-course-child-img7 p {
    font-size: 24px;
    font-weight: 600;
    position: absolute;
    text-align: center;
    top: 50%;
    transform: translate(-50%, -50%);
    line-height: 34px;
    color: #ffffff;
    left: 50%;
    white-space: nowrap;
}

.YUGO-course-child-img8 p {
    font-size: 24px;
    font-weight: 600;
    position: absolute;
    text-align: center;
    top: calc(50% + 5px);
    transform: translate(-50%, -50%);
    line-height: 34px;
    color: #3F29C9;
    left: 50%;
    white-space: nowrap;
}

.YUGO-course-child-text {
    width: 100%;
    height: calc(100% - 162px);
    background: #ffffff;
    padding: 24px 18px;
}

.YUGO-course-child-text p:nth-child(1) {
    font-size: 16px;
    font-weight: bold;
    color: #000000;
    line-height: 16px;
    margin-bottom: 0px;
}

.YUGO-course-child-text p:nth-child(2) {
    font-size: 14px;
    color: #666666;
    line-height: 22px;
    margin-top: 12px;
    margin-bottom: 0px;
}

.YUGO-mp-course-list {
    width: 100%;
    margin-top: 45px;
}