.App_ym {
    width: 100%;
    height: auto;
}

.app_all {
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 45px 0px;
}

.app_all .app_all_text {
    width: 40%;
    display: flex;
    flex-wrap: wrap;
    align-content: center;
}

.app_all .app_all_tu {
    width: 55%;
    height: auto;
    position: relative;
    padding-bottom: 29%;
}

.app_all .app_all_tu img {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    object-fit: cover;
    transition: allease-in-out 0.3s;
}

.app_all .app_all_tu:hover img {
    transform: scale(1.05);
    transition: 0.3s ease-in-out;
}

.app_all .app_all_text {
    width: 40%;
    display: flex;
    flex-wrap: wrap;
    align-content: center;
}

.app_all .app_all_text .app_all_ann {
    font-size: 18px;
    color: var(--dark-color);
    display: none;
}

.app_all .app_all_text .app_all_biao {
    font-size: 40px;
    line-height: 1.3;
    margin: 10px 0 20px 0;
}

.app_all .app_all_text .app_all_nr {
    color: var(--dark-color);
    line-height: 1.6;
}

.layout .App_ym:nth-child(2n) .app_all {
    flex-direction: row-reverse;
}

@media only screen and (max-width: 950px) {
    .app_all {
        flex-wrap: wrap;
        padding: 20px 0px;
    }

    .app_all .app_all_text {
        width: 100%;
        height: auto;
        display: block;
        margin-bottom: 20px;
    }

    .app_all .app_all_text .app_all_biao {
        font-size: 26px;
    }

    .app_all .app_all_text .app_all_nr {
        font-size: 16px;
        margin-top: 13px;
    }

    .app_all .app_all_tu {
        padding-bottom: 52%;
        width: 100%;
        height: auto;
    }

    .layout .App_ym:nth-child(2n) .app_all {
        flex-direction: row-reverse;
    }
}


@media screen and (max-width:950px) {
    .page_main {
        margin: 0 !important;
        padding: 0 !important;
    }
}