.dw2 {
    padding: 5vw 0 7.969vw;
    background-repeat: no-repeat;
    background-size: auto;
    background-position: left top;
}

.dw2 .dw2-wrap {
    width: 83.333vw;
    margin: 0vw auto 0;
}

.dw2 .main {
    margin: 4.167vw auto 0;
}

.dw2 .main .ev,
.dw2 .main .zhanwei {
    width: 24.583vw;
    position: relative;
}

.dw2 .main .ev {
    margin-bottom: 4.167vw;
}

.dw2 .main .ev .pic {
    width: 100%;
    opacity: 0.6;
    transition: all ease .3s;
}

.dw2 .main .ev:hover .pic {
    opacity: 1;
}

.dw2 .main .ev .intr {
    position: absolute;
    left: 0;
    top: 0;
    padding: 2.5vw;
    width: 100%;
    height: 100%;
    color: #000000;
}

.dw2 .main .ev .intr h2 {
    font-size: 1.25vw;
    margin-bottom: 1.563vw;
    font-weight: bold;
}

.dw2 .main .ev .intr p {
    font-size: 0.833vw;
}

.dw2 .main .ev .intr h3 {
    font-size: 0.729vw;
}

.dw2 .main .ev .intr h3 i {
    color: #B4B4B4;
    font-size: 2.708vw;
    transition: all ease .3s;
}

.dw2 .main .ev:hover .intr h3 i {
    color: #C11920;
}

.dw2 .dw2-video {
    margin: 4.167vw auto 8vw;
}
.dw2-video .ev{
    margin-bottom: 40px;
}
.dw2-video .ev,
.dw2-video .zhanwei {
    width: 24.635vw;
}

.dw2-video .ev .pic {
    width: 100%;
    overflow: hidden;
}

.dw2-video .ev .pic video {
    width: 100%;
}

.dw2-video .ev h2 {
    margin: 1.979vw 0 1.146vw;
    font-size: 1.058vw;
    font-family: 'PingFang SC';
    font-weight: 600;
    color: #000000;
    transition: all ease .3s;
}

.dw2-video .ev h3 {
    font-size: 0.938vw;
    font-weight: normal;
    font-family: 'PingFang SC';
    color: #B4B4B4;
}

.dw2-video .ev:hover h2 {
    color: #C11920;
}


/* 
*======================================================media===============================================================
*/
@media screen and (max-width:1919px) {}

@media screen and (max-width:1519px) {}

@media screen and (max-width:1366px) {}

@media screen and (max-width:1250px) {}

@media screen and (max-width:991px) {
    .dw2 {
        padding: 76px 0 93px;
    }

    .dw2 .dw2-wrap {
        width: 90%;
        margin: 0 auto 0;
    }

    .dw2 .main {
        margin: 60px auto 0;
    }

    .dw2-video {
        margin: 60px auto 180px;
    }

    .dw2 .main .ev,
    .dw2 .main .zhanwei {
        width: 31%;
    }

    .dw2 .main .ev {
        margin-bottom: 40px;
    }

    .dw2 .main .ev .intr {
        padding: 28px;
    }

    .dw2 .main .ev .intr h2 {
        font-size: 18px;
        margin-bottom: 24px;
    }

    .dw2 .main .ev .intr p {
        font-size: 14px;
    }

    .dw2 .main .ev .intr h3 {
        font-size: 14px;
    }

    .dw2 .main .ev .intr h3 i {
        font-size: 42px;
    }

    .dw2-video .ev,
    .dw2-video .zhanwei {
        width: 30%;
    }

    .dw2-video .ev h2 {
        max-width: 80%;
        margin: 28px 0 12px;
        font-size: 16px;
    }

    .dw2-video .ev h3 {
        font-size: 14px;
    }
}

@media screen and (max-width:768px) {

    .dw2 .main .ev,
    .dw2 .main .zhanwei {
        width: 48%;
    }

    .dw2-video .ev h2 {
        max-width: 100%;
        margin: 18px 0 12px;
        font-size: 14px;
    }
}

@media screen and (max-width:480px) {

    .dw2 .main .ev,
    .dw2 .main .zhanwei {
        width: 100%;
    }

    .dw2-video .ev,
    .dw2-video .zhanwei {
        width: 100%;
        margin-bottom: 30px;
    }
}