.mobile {
    display: block;
}
.pc {
    display: none !important;
}
.main-box {
    width: 100%;
    padding: 30px 24px;
    box-sizing: border-box;
}
.parallax_video {
    /*width: 100%;*/
}
.index-video {
    overflow: hidden;
}
.top-bar {
    height: 48px;
}
.top-bar .com-btn {
    margin-top: 7px;
}
.top-bar .logo img {
    height: 37px;
}
.top-bar-right {
    position: absolute;
    top: 48px;
    left: 0;
    display: none !important;
}
.top-bar.active .cover {
    display: block;
}
.top-bar.active .top-bar-right {
    display: block !important;
    position: fixed;
}
.top-bar.active .navigation {
    display: block;
}
.top-bar.active .navigation ul {
    display: block;
    text-align: center;
}
.top-bar.active .navigation ul>li {
    height: auto;
}
.top-bar.active .navigation ul>li a {
    color: #fff;
}
.top-bar.active .navigation ul>li:hover a {
    color: #0692b1;
}
.top-bar.active .navigation ul ul {
    top: 0;
    border-top: none;
    background: none;
    width: 100%;
    height: auto;
    position: relative;
    padding: 0 20px;
    box-sizing: border-box;
    flex-direction: unset;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: -20px;
    margin-bottom: 20px;
}
.top-bar.active .navigation ul ul li {
    width: auto;
}
.top-bar.active .navigation ul ul li a:hover {
    background-color: unset;
}
.top-bar.active .navigation ul ul li a {
    border: none;
}
.top-bar.active .navigation ul ul::before {
    display: none;
}
.top-bar.active .navigation .btn-box {
    display: none;
}
.m-box {
    position: fixed;
    width: 100%;
    text-align: center;
    height: 48px;
    z-index: -1;
}
.m-box .cover {
    background-color: rgba(0,0,0,0.8);
    position: fixed;
    z-index: 10;
    width: 100%;
    height: 100%;
    display: none;
}
.top-line {
    padding-top: 48px;
}
.index-topic .swiper-container {
    display: none;
}
.index-video .ct {
    padding: 0 24px;
    box-sizing: border-box;
}
.index-video .ct .title {
    font-size: 24px;
}
.index-video .ct .time {
    font-size: 16px;
}
.index-lig {
    padding: 20px 40px 30px 40px;
}
.index-lig .item:first-child,.index-lig .item:last-child {
    display: none;
}
.index-lig .item .num {
    font-size: 40px;
}
.main-box .main-title {
    font-size: 30px;
}
.index-desc {
    font-size: 14px;
}
.timeline .item {
    padding: 10px 2px;
}
.timeline .timeline-content {
    padding: 10px 20px;
}
.index-topic li {
    font-size: 14px;
}
.spearker-list .item {
    width: 50%;
}
.spearker-list .item .img {
    height: auto;
}
.index-list {
    gap: 0;
}
.index-list .item {
    width: 50%;
    padding: 0 30px;
}
.index-media {
    justify-content: space-between;
}
.form-box {
    width: 95%;
    margin: -20px auto 0 auto;
    padding-bottom: 10px;
}
.icon-box {
    background-color: rgba(0, 0, 0, 0.4);
    position: fixed;
    top: 10px;
    right: 10px;
    z-index: 1010;
    padding: 4px 4px 3px 4px;
    border-radius: 4px;
    cursor: pointer;
}
.index-history .item {
    width: 49%;
}