@charset "utf-8";

.beston22119Video1 {
    background: url(../img/video/蒙版组\ 1477.png) no-repeat;
    background-size: 100% 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 230px;
    margin-bottom: 90px;
}

.beston22119Video1-tab {
    margin: 0 40px;
    position: relative;
    cursor: pointer;
}

.beston22119Video1-tab.active ,
.beston22119Video1-tab:hover{
    color: #42bbb6;
}
.beston22119Video1-tab a{
    font-weight: 500;
    color: #666666;
    text-decoration: none;
    display: inline-block;
    font-size: 18px;
}
.beston22119Video1-tab.active a ,
.beston22119Video1-tab:hover a{
    color: #3bb7b2;
}
.beston22119Video1-tab.active::after  ,
.beston22119Video1-tab:hover::after{
    content: '';
    width: 8px;
    height: 8px;
    background-color: #42bbb6;
    position: absolute;
    bottom: -20px;
    left: calc(50% - 4px);
    border-radius: 50%;
}

.beston22119Video1-tab.active::before  ,
.beston22119Video1-tab:hover::before{
    width: 0.5px;
    content: '';
    /* height: 80px; */
    background-color: #42bbb6;
    position: absolute;
    top: -95px;
    left: calc(50% - 0.25px);
    border-radius: 50%;

    animation: aihomeVideo1 2s linear infinite;
}

@keyframes aihomeVideo1 {
    0% {
        height: 0px;
    }

    100% {
        height: 80px;
    }
}

.beston22119Video2 {
    max-width: 1640px;
    margin: 0 auto;
}

.beston22119Video-safe {
    display: none;
}

.beston22119Video-safe.active {
    display: block;
}

.beston22119Video-single {
    width: 31.5%;
    margin-bottom: 80px;
    display: inline-block;
    padding-bottom: 55px;
    border-bottom: 1px solid #e1e1e1;
    margin-right: 2%;
}

.beston22119Video-single:nth-child(3n) {
    margin-right: 0;
}

.beston22119Video-single::after{
    transition: all 1s;
    content: '';
    position: absolute;
    left: 0;
    bottom: -0.5px;
    width: 0;
    height: 2px;
    background-color: #42bbb6;
}
.beston22119Video-single:hover::after{
    width: 100%;
}

.beston22119Video-pic {
    width: 100%;
    position: relative;
}

.beston22119Video .prism-big-play-btn {
    position: absolute;
    transform: translate(-50%, -50%);
    left: 50%;
    top: 50%;
    width: 68px;
    border-radius: 50%;
    transform: translateX(-50%) translateY(-50%);
    height: 68px;
    background: url("../img/video/多边形\ 1.png") rgba(255, 255, 255, 0.3) center center no-repeat;
    background-size: 30px 30px;
    cursor: pointer;
}

.beston22119Video .prism-big-play-btn:hover {
    background: url("../img/video/多边形\ 1.png") #42bbb6 center center no-repeat;
}

.beston22119Video-t1 {
    color: #333333;
    font-size: 24px;
    line-height: 30px;
    height: 60px;
    margin: 30px 0 30px 0;
}

.beston22119Video-t2 {
    color: #666666;
    font-size: 16px;
    line-height: 22px;
    padding-left: 35px;
    background: url(../img/video/组\ 12349.png) left center no-repeat;
    background-size: 21px 21px;
}

.beston22119Video2Bot ul {
    margin: 10px 0 130px 0;
    display: flex;
    justify-content: center;
    cursor: pointer;
}

.beston22119Video2Bot ul li {
    width: 50px;
    background-color: #f7f7f7;
    color: #333333;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 14px;
    height: 50px;
    border-radius: 25px;
    margin-right: 10px;
}

.beston22119Video2Bot ul li:hover {
    background-color: #42bbb6;
    color: #ffffff;
}

.beston22119Videotab {
    display: none;
    text-align: center;
    font-weight: 700;
    color: #333333;
    font-size: 32px;
    margin-bottom: 40px;
}


/* 媒体查询 */
@media screen and (max-width:1700px) {
    .beston22119Video2 {
        max-width: 1600px;
    }
}

@media screen and (max-width:1550px) {
    .beston22119Video2 {
        max-width: 1450px;
    }
}

@media screen and (max-width:1400px) {
    .beston22119Video2 {
        max-width: 1300px;
    }
    
    .beston22119Video-t1 {
        font-size: 22px;
        margin: 30px 0 20px 0;
    }
}

@media screen and (max-width:1300px) {
    .beston22119Video2 {
        max-width: 1200px;
    }

    .beston22119Video-single {
        margin-bottom: 60px;
        padding-bottom: 35px;
    }
    .beston22119Video-t1 {
        font-size: 20px;
        line-height: 25px;
        height: 50px;
        margin: 30px 0 10px 0;
    }
}

@media screen and (max-width:1024px) {
    .beston22119Video1 {
        background: url(../img/video/蒙版组\ 1477.png) no-repeat;
        background-size: 100% 51px;
        height: auto;
        padding: 95px 15px 0;
        margin-bottom: 80px;
        justify-content: space-around;
    }

    .beston22119Video1-tab {
        margin: 0;
    }

    .beston22119Video2 {
        padding: 0 15px;
    }

    .beston22119Video-single {
        width: 100%;
    }
    .beston22119Videotab {
        display: block;
    }
    .beston22119Video ul {
        margin: 0px 15px 100px;
        box-sizing: border-box;
    }
    .beston22119Video ul li{
        width: 42px;
        height: 42px;
    }
}
@media screen and (max-width:400px) {
.beston22119Video1-tab a {
    font-size: 16px;
}
}