.section2 {
    padding-top: 100px;
    position: relative;
}

.section2 .title {
    color: #000;
    text-align: center;
    font-size: 42px;
    line-height: 1;
}

.box2 {
    margin-top: 60px;
    display: flex;
    justify-content: space-between;
}

.box2 .item {
    position: relative;
    background: url(https://ss-res.oss-cn-hangzhou.aliyuncs.com/site_res/198/20231211184405_2MsAxMEj.png) no-repeat;
    background-size: cover;
    display: block;
}

.box2 .item .bj {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    opacity: 1;
    transition: 1s;
}

.box2 .item .cp {
    position: absolute;
    z-index: 2;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: 1s;
}

.box2 .item h1 {
    position: absolute;
    bottom: 0;
    left: 0;
    margin: 0;
    background: linear-gradient(180deg, #00000000 0%, #00000033 100%);
    width: 100%;
    display: block;
    z-index: 3;
    text-align: center;
    color: #fff;
    font-size: 24px;
    height: 100px;
    line-height: 100px;
}

.box2 .item:hover .bj {
    opacity: 0;
}

.box2 .item:hover .cp {
    opacity: 1;
}

.box2 .item:hover h1 {
    background: #00000000;
    color: #000;
}

.box2 .left {
    width: calc((100% - 20px) / 4);
}

.box2 .left .item {
    width: 100%;
}

.box2 .right {
    width: calc(((100% - 20px) / 4) * 3);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-content: space-between;
}

.box2 .right .item {
    width: calc((100% - 40px) / 3);
    height: calc(50% - 10px);
}

.box2 .right .item:last-child {
    width: calc((100% - 40px) / 3 * 2 + 20px);
}

.box2.media_pc {
    display: flex !important;

}

.box2.media_phone {
    display: none;
}

@media (max-width: 1600px) {}

@media (max-width: 1440px) {}

@media (max-width: 1200px) {
    .section2 {
        padding-top: 60px;
    }

    .box2 {
        margin-top: 45px;
    }

    .box2 .item h1 {
        font-size: 18px;
        height: 50px;
        line-height: 50px;
    }
}

@media (max-width: 992px) {
    .box2 .left {
        width: calc((100% - 10px) / 4);
    }


    .box2 .right {
        width: calc(((100% - 10px) / 4) * 3);

    }

    .box2 .right .item {
        width: calc((100% - 20px) / 3);
        height: calc(50% - 5px);
    }

    .box2 .right .item:last-child {
        width: calc((100% - 20px) / 3 * 2 + 10px);
    }
}

@media (max-width: 640px) {
    .section2 .title {
        font-size: 28px;
    }

    .box2 {
        margin-top: 30px;
    }

    .box2.media_pc {
        display: none !important;
    }

    .box2.media_phone {
        display: flex !important;
        flex-wrap: wrap;
        justify-content: space-around;
    }

    .box2 .item {
        width: 45vw !important;
        height: 45vw !important;
        margin-bottom: 15px;
    }

    .box2.media_phone .bj {
        object-fit: cover;
    }
}