body {
    background: #F5F7F8;
}

.inv2 {
    padding: 217px 0 60px;
    color: #222222;
}

.inv2 .main {
    border-radius: 0 36px 0 36px;
    padding: 48px 66px 44px 77px;
    background: #fff;
}

.inv2 .pic {
    width: 120px;
}

.inv2 h2 {
    font-weight: normal;
    line-height: 1;
}

.inv2 h2 span {
    color: #FF0000;
}

.inv2 h2 i {
    font-style: normal;
    transform: translateX(-10px);
    display: inline-block;
}

.inv2 .list {
    margin-top: 75px;
    color: #222222;
}

.inv2 .list .ev {
    width: 20%;
}

.inv2 .list h2 {
    color: #000000;
    margin-bottom: 3px;
}

.inv3 {
    padding: 0 0 200px;
}

.inv3 .main::after {
    content: '';
    width: 31.21%;
}

.inv3 .ev {
    width: 31.21%;
    background: url('../images/inv3-bg1.png') no-repeat center center/100% 100%;
    padding: 104px 0 60px;
}

.inv3 .ev:hover {
    background: url('../images/inv3-bg2.png') no-repeat center center/100% 100%;
}

.inv3 .pic-box {
    width: 150px;
    height: 150px;
    margin-bottom: 60px;
}

.inv3 .ev h2 {
    margin-bottom: 17px;
    color: #222222;
    text-align: center;
}

.inv3 .ev .C-btn {
    margin: 0 auto;
}

/* 
*======================================================media===============================================================
*/
@media screen and (max-width:1680px) {}

@media screen and (max-width:1500px) {}

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

@media screen and (max-width:1025px) {
    .inv2 {
        padding: 80px 0 60px;
    }

    .inv2 .intr {
        width: 100%;
        margin-bottom: 20px;
    }

    .inv2 .pic {
        width: 90px;
    }

    .inv2 .list .ev {
        width: 48%;
        margin-bottom: 30px;
    }

    .inv3 .main {
        justify-content: center;
    }


    .inv3 {
        padding: 0 0 100px;
    }

}

@media screen and (max-width:800px) {
    .inv3 .ev {
        width: 70%;
        padding: 104px 0 60px;
        margin-bottom: 40px;
    }
}

@media screen and (max-width:480px) {
    .inv2 {
        padding: 60px 0 40px;
    }

    .inv2 .main {
        padding: 30px 8%;
    }

    .inv2 .list {
        margin-top: 45px;
    }

    .inv3 .pic-box {
        width: 150px;
        height: 150px;
        margin-bottom: 60px;
    }

    .inv3 .ev {
        width: 100%;
        padding: 54px 0 60px;
    }

    .inv3 .pic-box {
        width: 90px;
        height: 90px;
        margin-bottom: 40px;
    }
}