.video-solution {
    padding: 50px 0;
    overflow: hidden;
    background: #ecf3f9;
}

.video-solution .solution-title {
    text-align: center;
    padding: 0 0 50px;
}

.video-solution .solution-title h3 {
    font-size: 24px;
    line-height: 40px;
}

.video-solution .solution-title p {
    font-size: 16px;
    line-height: 24px;
    margin: 15px 0;
}

.video-solution .col {
    margin-bottom: 50px;
}

.video-solution .col:last-child {
    margin-bottom: 0;
}

.video-solution .solution-title a {
    display: inline-block;
    line-height: 22px;
    color: #1b82fb;
}

.video-solution .item {
    width: 100%;
    height: 100%;
    border-radius: 10px;
    padding: 50px 0 0;
    transition: all .5s ease-in-out;
    background: url(../images/solution-icon.png) no-repeat top left #ffffff;
}

.video-solution .item:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 10px 5px rgba(0, 0, 0, .1);
}

.video-solution .item h3 {
    font-size: 18px;
    font-weight: bold;
    line-height: 30px;
    text-align: center;
}

.video-solution .item .icon {
    width: 80px;
    height: 80px;
    position: absolute;
    left: 50%;
    top: -32px;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    transform: translateX(-50%);
    background-repeat:no-repeat;
    background-size:100% auto;
    background-position:top;
    animation: smo-service1 .5s steps(23) forwards;
}

.video-solution .item:hover .icon {
    animation: smo-service2 .5s steps(23) forwards;
}

.video-solution .item:hover .desc {
    color: #006cff;
}

@keyframes smo-service1 {
    0% {
        background-position:0 -1840px;
    }
    to {
        background-position:0 0;
    }
}
@keyframes smo-service2 {
    0% {
        background-position:0 0;
    }
    to {
        background-position:0 -1840px;
    }
}

.video-solution .item .desc {
    font-size: 14px;
    line-height: 30px;
    padding: 5px 0 25px;
    color: #868c96;
    text-align: center;
}

@media (min-width: 576px) {
    .video-solution .col:nth-last-child(2) {
        margin-bottom: 0;
    }
}

@media (min-width: 768px) {
    .video-solution .col {
        margin-bottom: 0 !important;
    }
}


@media (min-width: 992px) {
    .video-solution .solution-title h3 {
        font-size: 30px;
        line-height: 46px;
    }

    .video-solution .solution-title p {
        font-size: 20px;
        line-height: 28px;
    }
}




.video-roi {
    padding: 60px 0;
    overflow: hidden;
    background: #006cff;
}

.video-roi .roi-title {
    color: #ffffff;
    text-align: center;
}

.video-roi .roi-title h3 {
    font-size: 24px;
    line-height: 48px;
}

.video-roi .roi-title p {
    font-size: 16px;
    line-height: 20px;
    margin: 15px 0 0;
}

.video-roi .roi-box {
    padding: 45px 0 0;
}

.video-roi .roi-box .list .item {
    margin: 0 0 30px;
    display: flex;
    align-items: center;
}

.video-roi .roi-box .list .item .title {
    width: 145px;
    height: 70px;
    flex: 0 0 auto;
    margin-right: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.2);
}

.video-roi .roi-box .list .item .title .icon {
    width: 24px;
    height: 24px;
    background-repeat: no-repeat;
    background-position: center center;
}

.video-roi .roi-box .list .item .title h3 {
    font-size: 16px;
    line-height: 24px;
    margin-left: 16px;
    font-weight: normal;
}

.video-roi .roi-box .list .item .desc span {
    display: block;
    width: 90px;
    height: 30px;
    text-align: center;
    line-height: 30px;
    border-radius: 15px;
    font-size: 14px;
    font-weight: 500;
    color: #ffffff;
    background: linear-gradient(90deg, #fd766a, #fda085);
}

.video-roi .roi-box .list .item .desc p {
    font-size: 14px;
    color: #ffffff;
    margin: 12px 0 0;
}

.video-roi .roi-box .dimg {
    width: 100%;
    position: relative;
}

.video-roi .roi-box .dimg img {
    position: absolute;
    width: 100%;
    left: 0;
    top: 0;
    z-index: 2;
    transition: all .5s ease-in-out;
}

.video-roi .roi-box .dimg img:nth-child(1) {
    position: relative;
    z-index: 1;
}

.video-roi .roi-box .dimg:hover img:nth-child(1) {
    transform: translateY(-10px);
}

.video-roi .roi-box .dimg:hover img:nth-child(2) {
    transform: translateY(-20px);
}

.video-roi .roi-box .dimg:hover img:nth-child(3) {
    transform: translateY(10px);
}

@media (min-width: 768px) {
    .video-roi .roi-box .list .item .title {
        width: 165px;
        margin-right: 25px;
    }

    .video-roi .roi-box .list .item .title h3 {
        font-size: 20px;
    }

    .video-roi .roi-box .list .item .desc span {
        font-size: 16px;
    }

    .video-roi .roi-box .list .item .desc p {
        font-size: 16px;
    }
}

@media (min-width: 992px) {
    .video-roi .roi-title h3 {
        font-size: 30px;
        line-height: 54px;
    }

    .video-roi .roi-title p {
        font-size: 20px;
        line-height: 24px;
    }

    .video-roi .roi-box {
        padding: 65px 0 0;
        display: flex;
    }

    .video-roi .roi-box .list {
        width: 482px;
        flex: 0 0 auto;
    }
}




.video-tetralogy {
    width: 100%;
    padding: 50px 0;
    overflow: hidden;
    background: url(../images/video-tetralogy.jpg) no-repeat center;
    background-size: cover;
}

.video-tetralogy .tetralogy-title {
    text-align: center;
    padding: 0 0 50px;
}

.video-tetralogy .tetralogy-title h3 {
    font-size: 24px;
    line-height: 40px;
    color: #2f2f2f;
    font-weight: bold;
}

.video-tetralogy .tetralogy-title p {
    font-size: 16px;
    line-height: 26px;
    margin: 15px 0 0;
    color: #2f2f2f;
}

.video-tetralogy .tetralogy-more {
    text-align: center;
    line-height: 20px;
}

.video-tetralogy .tetralogy-more a {
    color: #1b82fb;
}

.video-tetralogy .tetralogy-list {
    padding: 0 0 36px;
    display: flex;
    flex-wrap: wrap;
}

.video-tetralogy .tetralogy-list .item {
    width: 100%;
    margin: 0 0 30px;
}

.video-tetralogy .tetralogy-list .item .item-cover {
    width: 180px;
    height: 300px;
    padding: 20px 20px 35px;
    border-radius: 10px;
    display: none;
    flex-direction: column;
    justify-content: space-between;
    background: #006fff;
}

.video-tetralogy .tetralogy-list .item .item-cover img {
    display: block;
    width: 40px;
    height: 40px;
}

.video-tetralogy .tetralogy-list .item .item-cover h3 {
    font-weight: normal;
    color: #ffffff;
    font-size: 20px;
}

.video-tetralogy .tetralogy-list .item .item-content {
    display: block;
    padding: 30px;
}

.video-tetralogy .tetralogy-list .item .item-content h3 {
    font-size: 20px;
    color: #2f2f2f;
    font-weight: normal;
    position: relative;
    z-index: 2;
}

.video-tetralogy .tetralogy-list .item .item-content .desc {
    color: #868c96;
    font-size: 16px;
    line-height: 36px;
    margin: 10px 0 0;
    position: relative;
    z-index: 2;
}

.video-tetralogy .tetralogy-list .item .item-content {
    display: block;
    width: 100%;
    height: 200px;
    border-radius: 10px;
    position: relative;
    background: linear-gradient(180deg, #ffffff, #c3e1ff);
}

.video-tetralogy .tetralogy-list .item .item-content i {
    width: 90px;
    height: 80px;
    position: absolute;
    right: 15px;
    bottom: 15px;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    z-index: 1;
}

@media (min-width: 768px) {
    .video-tetralogy .tetralogy-list {
        flex-wrap: nowrap;
    }

    .video-tetralogy .tetralogy-list .item .item-cover {
        display: flex;
    }

    .video-tetralogy .tetralogy-list .item .item-content {
        display: none;
    }

    .video-tetralogy .tetralogy-list .item.active .item-cover {
        display: none;
    }

    .video-tetralogy .tetralogy-list .item.active .item-content {
        display: block;
        width: 100%;
        height: 100%;
    }

    .video-tetralogy .tetralogy-list .item {
        margin-left: 24px;
        width: auto;
    }

    .video-tetralogy .tetralogy-list .item.active {
        flex: 1;
    }

    .video-tetralogy .tetralogy-list .item:nth-child(1) {
        margin-left: 0;
    }

    .video-tetralogy .tetralogy-list .item .item-cover {
        width: 120px;
    }
}

@media (min-width: 992px) {
    .video-tetralogy .tetralogy-title h3 {
        font-size: 30px;
        line-height: 46px;
    }

    .video-tetralogy .tetralogy-title p {
        font-size: 20px;
        line-height: 30px;
    }

    .video-tetralogy .tetralogy-list .item .item-cover {
        width: 180px;
    }

    .video-tetralogy .tetralogy-list .item .item-content h3 {
        font-size: 26px;
    }

    .video-tetralogy .tetralogy-list .item .item-cover h3 {
        font-size: 26px;
    }
}

@media (min-width: 1200px) {
    .video-tetralogy .tetralogy-list .item .item-content i {
        width: 180px;
        height: 160px;
        right: 30px;
        bottom: 30px;
    }
}


.video-adverts {
    width: 100%;
    height: 240px;
    overflow: hidden;
    background-size: cover;
}

.video-adverts .app-container {
    display: flex;
    height: 100%;
    color: #ffffff;
    flex-direction: column;
    justify-content: center;
}

.video-adverts .app-container h3 {
    font-size: 24px;
    font-weight: bold;
}

.video-adverts .app-container p {
    font-size: 18px;
    margin: 20px 0 0;
}

@media (min-width: 992px) {
    .video-adverts .app-container h3 {
        font-size: 30px;
    }

    .video-adverts .app-container p {
        font-size: 22px;
    }
}
@media (min-width: 1280px) {
    .app-header {
        position: relative;
    }
}