html, body {
    background-color: #fff;
}

.yxg-head-icp a:hover {
    color: #444400;
    text-decoration: none;
}

.yxg-head-safety a {
    color: #fff;
}

.yxg-head-safety a:hover {
    color: #f8f8f8;
    text-decoration: none;
}

.yxg-head-ad img {
    max-width: 100%;
}

.alert {
    position: relative;
    padding: .75rem 1.25rem;
    border: 1px solid transparent;
    background: rgba(0, 0, 0, .5);
    border-radius: 0;
}

.yxg-carousel-play {
    width: 60px;
    height: 60px !important;
    z-index: 888;
    left: 50%;
    margin-left: -50px;
    top: 0;
    margin-top: 200px;
    position: absolute;
}

.yxg-alert-dlb {
    margin-top: -55px;
}

.yxg-alert-dlb-gb {
    width: 25px;
    margin-top: 83px;
}

.alert {
    position: relative;
    padding: 0;
    height: 80px;
    margin-top: 60px;
    border: 1px solid transparent;
    background: rgba(0, 0, 0, .5);
    border-radius: 0;
}

.carousel-inner {

}

.yxg-footer-gift {
    width: 100%;
    position: fixed;
    bottom: 0;
    z-index: 666;
    margin-bottom: 0;
}

.yxg-home-book {
    padding: 80px 0;
}


.yxg-home-praise-head {
    margin: 60px 0 40px;
}


.yxg-bj {
    position: relative;
    margin: 0 auto;
}

.yxg-mhc {
    position: absolute;
    z-index: 1;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    background: rgba(0, 0, 0, .55);
}

.w-480 {
    width: 480px !important;
}


.yxg-home-attention-icon {
    max-width: 60px;
}

/*.modal-dialog {
    max-width: 800px;
    margin: 1.75rem auto;
}*/


.nav-link {
    display: block;
    padding: .65rem 1rem;
}


.navbar {
    position: relative;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: justify;
    justify-content: space-between;
    padding: 0;
}

.yxg-home-menu {
    position: relative;
    margin: 0 auto;
}


.yxg-home-menu-float {
    position: relative;
    /*z-index: 888;*/
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0 auto;
    height: 100%;
}


.yxg-home-menu-item a {
    display: block;
    color: #aeaeae;
    height: 34px;
    line-height:34px;
}


.badge {
    display: inline-block;
    font-size: 100%;
    font-weight: 500;
    line-height: 34px;
    padding: 0;
    margin-right: 20px;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: .25rem;
    transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out;
}


.yxg-home-mine-avatar {
    width: 70px;
    height: 70px;
    border-radius: 50%;
}

.yxg-btn-warning {
    color: #fff;
    border-radius: 100px !important;
    background: rgba(255, 140, 45, 1);
    border-color: rgba(255, 140, 45, 1);
}

.yxg-btn-warning:hover {
    color: #fff;
    border-radius: 100px !important;
    background: rgba(255, 140, 45, .9);
    border-color: rgba(255, 140, 45, .8);
}

.yxg-btn-outline-warning {
    border-radius: 100px !important;
    color: rgba(255, 117, 57, 1);
    border-color: rgba(255, 117, 57, 1);
}

.yxg-btn-outline-warning:hover {
    border-radius: 100px !important;
    color: rgba(255, 117, 57, .8);
    border-color: rgba(255, 117, 57, .8);
}

.yxg-modal-header {
    padding: 0;
    border-bottom: 0 solid #dee2e6;
}

.yxg-mb {
    padding: 0 1rem 1rem 1rem;
}

.yxg-home-login {
    padding: 0 50px 25px;
}


.hidden {
    display: none
}

.yxg-badge {
    position: absolute;
    margin-left: 95px;
    margin-top: 7px;
}


/* CSS Document */

.yxg-carousel-item img {
    /*display: block;
    position: absolute;*/
    height: 480px;

}

/*.carousel-item {
    position: relative;
    display: none;
    float: left;
    width: 100%;
}*/


#certify {
    position: relative;
    margin: 0 auto
}

#certify .swiper-container {
    padding-bottom: 60px;
}

#certify .swiper-slide {
    width: 520px;
}

#certify .swiper-slide p {
    line-height: 66px;
    padding-top: 0;
    text-align: center;
    color: #636363;
    font-size: 1.1em;
    margin: 0;
}

#certify .swiper-pagination {
    width: 100%;
    bottom: 20px;
}

.swiper-button-next, .swiper-button-prev {
    outline: none !important;
}


.yxg-menu-carousel-mask {
    position: relative;
    height: 45px;
    margin: 0 auto;
    /*background: rgba(0, 0, 0, .4);*/
}


.yxg-home-minute {
    float: left;
    height: 45px;
    line-height: 45px;
    width: 210px;
    background: #FE5E10;
}

.yxg-home-menu-list {
    position: absolute;
    left: 0;
    top: 45px;
    z-index: 100;
    width: 210px;
    height: 480px;
    background: rgba(43, 51, 59, 1);
}

.yxg-home-mine {
    height: 480px;
    width: 170px;
    position: absolute;
    padding-top: 30px;
    z-index: 99;
    right: 0;
    top: 45px;
}

.yxg-mine-course {
    /*width: 80%;*/
    margin: 15px auto 10px;
    height: 34px;
    line-height: 34px;
    text-align: center;
    background-color: #FE5E10;
    color: #fff;
}

.yxg-mine-course a {
    display: block;
    color: #fff;
}

/*.yxg-carousel-item i{
    position: absolute; top: 0; right: 0; bottom: 0; left: 0;
    background-color: rgba(0, 0, 0, .2);
    transition: background-color .5s;
}*/

.yxg-mine-vip {
    /*width: 80%;*/
    margin: 0 auto 15px;
    height: 34px;
    line-height: 34px;
    text-align: center;
    border: 1px solid #FE5E10;
    color: #FE5E10;
}

.yxg-mine-vip a {
    display: block;
    color: #FE5E10;
}


.yxg-collapse {
    float: left;
    height: 45px;
}

.yxg-home-menu-list li {
    background: url(../../assets/img/article-yjth.png) 180px center no-repeat;
}

.yxg-home-menu-list li .yxg-home-menu-submenu {
    position: absolute;
    /*position: relative;*/
    width: 640px;
    display: none;
    overflow: auto;
    height: 480px;
    z-index: 900;
    /*border-top: 1px solid #f8f8f8;
    border-bottom: 1px solid #f8f8f8;
    border-right: 1px solid #f8f8f8;*/
    background-color: #f8f8f8;
}

.yxg-home-menu-list li:hover {
    background-color: #404851;
}

.yxg-home-menu-list li:hover .yxg-home-menu-submenu {
    display: block;
    top: 0;
    left: 210px;
}

.yxg-carousel-play {
    width: 60px;
    height: 60px !important;
    z-index: 50;
    left: 50%;
    margin-left: -50px;
    top: 0;
    margin-top: 200px;
    position: absolute;
}


.yxg-head-ad {
    padding-right: 0;
    margin-top: 0;
    margin-bottom: 0;
    border: 0 solid transparent;
    background: rgba(0, 0, 0, 0);
}

.yxg-alert-head-ad {
    width: 25px;
    margin-top: 15px;
}

.yxg-nav-link {
    display: block;
    height: 45px;
    padding: 0 10px;
    line-height: 45px;
    color: rgba(255, 255, 255, .8);
}

.yxg-nav-item-li {
    position: relative;
    z-index: 11;
}

.yxg-nav-item-li a {
    padding: 0 20px;
    height: 45px;
    line-height: 45px;
    display: block;
}

.yxg-nav-item-li a:hover {
    color: #FE5E10;
}

.yxg-nav-item-li:hover .yxg-nav-item-head {
    color: #FE5E10;
}

.yxg-nav-item-ul li a {
    color: rgba(0, 0, 0, .5);
}


.yxg-nav-item-li:hover > ul {
    display: block;
    /* 鼠标进入母选单後，显示子选单 */
}


.yxg-nav-item-ul {
    width: 160px;
    position: absolute;
    top: 100%;
    list-style: none;
    background-color: #fff;
    display: none;
}


/* league */

.league-home-logo {
    max-width: 183px;
    height: 58px
}

.parent {
    /*position: relative;*/
}

.l-child {
    /*position: absolute;*/
    width: 210px;
    left: 0;
    top: 0;
}

.r-child {
    margin-left: 210px;
}

/*2022-首页优化*/

.course_live_box {
    width: 100%;
    background-color: #ffffff;
    padding: 2.5rem 0 5rem;
}

.course_live_con {
    max-width: 1280px;
    margin: 0 auto;
}

.course_live_tips {
    margin-top: 0 !important;
}

.course_live_list_box {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: .5rem;
}

.course_live_items {
    width: 100%;
    border-radius: .5rem;
    background-color: #fff;
    box-shadow: 0 0.225rem 0.45rem rgb(0, 0, 0, 0.3);
    overflow: hidden;
}

.course_live_cover {
    width: 100%;
}

.course_live_cover img {
    width: 100%;
}

.course_live_info_card {
    box-sizing: border-box;
    padding: .5rem .8rem;
    font-size: .875rem;
    color: #5A5A5A;
}

.course_live_time.active {
    position: relative;
}

.course_live_time.active::after {
    content: "";
    width: 2rem;
    height: 1.2rem;
    background: url(../../assets/img/liveing.gif) center no-repeat;
    color: #FE5E10;
    position: absolute;
    top: 0;
    bottom: 0;
}

.course_live_time_nums {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.course_live_tit {
    width: 100%;
    padding: .5rem 0;
    font-size: .9rem;
    color: #000;
    font-weight: bolder;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.course_live_tit a {
    width: 100%;
    display: block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.course_live_teacher_card {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.course_live_teacher img {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    margin-right: .5rem;
}

.look_course_live_btn {
    width: fit-content;
    padding: .02rem .8rem;
    background-color: #EB4750;
    border-radius: 1rem;
    color: #fff;
    cursor: pointer;
}

.look_course_live_btn.active {
    background-color: #0074FF;
}

.home_class_box {
    width: 100%;
    background-color: #fff;
    padding: 2.5rem 0 5rem;
}

.home_class_title {
    width: 100%;
    height: 7rem;
    font-size: 2rem;
    font-weight: bolder;
    display: flex;
    align-items: center;
    justify-content: center;
}

.home_class_con {
    max-width: 1280px;
    margin: 0 auto;
    position: relative;
    box-sizing: border-box;
    padding: 0 .9rem 0 0;
}

.home_class_pre_btn, .home_class_next_btn {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 0;
    bottom: 0;
}

.home_class_pre_btn {
    visibility: hidden;
    left: -3rem;
}

.home_class_next_btn {
    visibility: hidden;
    right: -4.5rem;
}

.home_class_pre_btn img, .home_class_next_btn img {
    width: 4rem;
}

.home_class_swiper {
    width: 100%;
}

.home_class_swiper_items {
    width: 100%;
    display: grid !important;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: .5rem;
    margin-top: 1rem;
}

.home_class_swiper_items.active, .home_class_swiper_items.active.a-bounceinR, .home_class_swiper_items.active.a-bounceinL {
    display: grid !important;
}

.home_class_items {
    width: 100%;
    /*height: 11rem;*/
    box-sizing: border-box;
    overflow: hidden;
    padding: 0 .575rem;
    font-size: .8rem;
    cursor: pointer;
    border-radius: 5px;
    box-shadow: 0 0.225rem 0.45rem rgb(0, 0, 0, 0.3);
}

.home_class_tit_price {
    width: 100%;
    height: 3.5rem;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bolder;
    font-size: 1.4rem;
    color: #FFEEC9;
}

.home_class_tit {
    width: auto;
    flex: auto;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.home_class_price {
    width: fit-content;
    font-size: 1.3rem;
}

.home_class_tags_ul {
    padding: .3rem 0;
    margin: 0 auto;
    overflow: hidden;
}

.home_class_tags_items {
    width: fit-content;
    margin-top: .3rem;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    overflow: hidden;
    border-bottom: 1px solid red;
}

.ellipsis {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.home_class_tags_items span:nth-of-type(1) {
    width: .3rem;
    height: .3rem;
    background-color: #000;
    border-radius: 50%;
    margin-right: .25rem;
}

.home_class_tags_items span:nth-of-type(2) {
    flex: 1;
}

.home_class_teacher_btn {
    height: 2.5rem;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    color: red;
    padding: .2rem .5rem;
}

.home_class_nums_btn {
    height: 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.home_class_nums {
    background-color: #fff;
    padding: 0 .3rem;
    border-radius: .3rem;
}

.home_class_nums span {
    color: red;
}

.home_class_btn {
    padding: .2rem .5rem;
    background: linear-gradient(to right, #FE5746, #FD9286);
    color: #fff;
    border-radius: .5rem;
}

.good_course_box {
    width: 100%;
    background-color: #ffffff;
}

.good_course_box {
    width: 100%;
    background-color: #ffffff;
    padding: 2.5rem 0 1rem;
}

.good_course_con {
    max-width: 1280px;
    margin: 0 auto;
}

.good_course_list_box {
    box-sizing: border-box;
    padding: 1.8rem 0;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: .8rem;
}

.good_course_items {
    width: 100%;
    border-radius: 5px;
    box-shadow: 0 0.225rem 0.45rem rgb(0, 0, 0, 0.3);
    overflow: hidden;
    cursor: pointer;
}

.cursor_show_pointer {
    cursor: pointer !important;
}

.good_course_items:hover, .home_class_items:hover, .course_live_items:hover {
    border-radius: 5px;
    transform: translateY(-7px);
    -webkit-transform: translateY(-7px);
    -moz-transform: translateY(-7px);
    box-shadow: 0 .225rem .45rem rgba(0, 0, 0, 0.6);
    -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    -o-transition: all 0.5s ease;
    transition: all 0.5s ease;
}

.good_course_poser_box {
    position: relative;
}

.good_course_poser_box img {
    width: 100%;
    border-radius: .4rem;
}

.good_course_tags {
    width: fit-content;
    padding: 0 .5rem;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 1);
    position: absolute;
    top: .2rem;
    left: 0;
    border-radius: 5rem;
    background: linear-gradient(-90deg, rgba(255, 170, 0, 1), rgba(247, 110, 27, 1));
}

.good_course_category {
    width: 11rem;
    height: 5rem;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
    color: #fff;
    font-weight: bolder;
    white-space: nowrap;
    overflow: hidden;
}

.good_course_category p {
    width: fit-content;
    letter-spacing: 2px;
    margin: 0 auto;
    text-shadow: 1px 2px 5px rgb(0, 0, 0, 0.49);
}

.good_course_info {
    padding: 0 .575rem;
}

.good_course_tit {
    width: 100%;
    height: 2.1rem;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    font-weight: bolder;
}

.good_course_nums_price {
    width: 100%;
    height: 2.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.good_course_nums {
    color: #A5A09D;
    display: flex;
    justify-content: center;
    align-items: center;
}

.good_course_nums img {
    width: .8rem;
    margin-right: .2rem;
}

.good_course_price {
    color: #E46974;
    font-weight: bolder;
}


@keyframes move {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(-20%, 0);
    }
}


.tiku_nav_box {
    width: 100%;
    background-color: #ffffff;
    padding: 2rem 0;
}

.tiku_nav_con {
    max-width: 1280px;
    margin: 0 auto;
}

.tiku_nav_tit {
    padding: 0.9375rem 0.9375rem .65rem;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    font-size: 1.25rem;
    font-weight: bolder;
}

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

.tiku_nav_bgimg {
    width: 100%;
}

.tiku_nav_card {
    position: absolute;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 66;
    margin: auto;
    display: grid;
    grid-template-columns: 1fr 1.5fr 1fr;
    gap: 1rem;
}

.tiku_nav_sj_ws {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 1rem;
}

.tiku_nav_ys_hs {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 1rem;
}

.tiku_nav_sj,
.tiku_nav_ws,
.tiku_nav_vip,
.tiku_nav_ys,
.tiku_nav_hs {
    width: 100%;
    height: 100%;
}


.tiku_nav_cards {
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    margin: auto;
    display: grid;
    grid-template-columns: 1fr 1.5fr 1fr;
    gap: 1rem;
}

.tiku_nav_itemss {
    width: 100%;
    background-color: #F7F7F7;
    box-sizing: border-box;
    padding: 15px;
}

.tiku_nav_items_shadow {
    box-shadow: 0 0.225rem 0.45rem rgb(0 0 0 / 30%) !important;
}

.tiku_nav_items_shadow img {
    width: 100% !important;
}

.xcvideo_box{
    width: 100%;
    height: 250px;
    /* background-color: pink; */
}
.xcvideo{
    width: 1250px;
    height: 250px;
    /* background-color: aqua; */
    margin: 0 auto;
}
.vbox{
    width: 99%;
    height: 150px;
    margin: 0 auto;
    /* background-color: aquamarine; */
    display: flex;
    justify-content: space-between;
}
.start_video{
    width: 24%;
    height: 150px;
    background-color: blanchedalmond;
    border-radius: 5px;
    box-shadow: 0 0.225rem 0.45rem rgb(0, 0, 0, 0.3);
}
.v_image{
    display: block;
    width: 100%;
    height: 150px;
    border-radius: 5px;
    box-shadow: 0 0.225rem 0.45rem rgb(0, 0, 0, 0.3);
    cursor: pointer;
}