.slide_box {
    width: 480px;
    height: 320px;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.slide_box ul {
    padding: 0;
}

.slide_box ul li {
    width: 480px;
}

.slide_box .slide_box_num {
    position: absolute;
    right: 10px;
    bottom: 10px;
    z-index: 1;
}

.slide_box .slide_box_num li {
    width: 16px;
    height: 16px;
    float: left;
    background: #ffffff;
    margin-left: 5px;
    border-radius: 16px;
}

.slide_box .slide_box_num li.active {
    background: #3daafc
}

.slide_box_img {
    position: absolute;
    left: 0;
    top: 0;
}

.slide_box_img li {
    float: left;
}

.slide_box_img li img {
    width: 480px;
    height: 320px;
}

.slide_box_info_shade {
    height: 40px;
    line-height: 40px;
    width: 100%;
    background-color: #000000;
    opacity: 0.5;
    position: absolute;
    left: 0;
    bottom: 0;
}

.slide_box_info_title {
    position: absolute;
    left: 10px;
    bottom: 3px;
    color: #fff;
    height: 30px;
    line-height: 30px;
}

.slide_box_info_title ul li {
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    width: 70%;
}

.slide_box_info_title li {
    font-size: 16px;
}

.slide_box:hover .slide_box_arrow_left {
    display: block;
}

.slide_box:hover .slide_box_arrow_right {
    display: block;
}

.slide_box_arrow_left {
    cursor: pointer;
    display: none;
    position: absolute;
    left: 15px;
    top: 180px;
    width: 30px;
    height: 30px;
    border-top: 10px solid #33333388;
    border-right: 10px solid #33333388;
    transform: rotate(225deg);
}

.slide_box_arrow_right {
    cursor: pointer;
    display: none;
    position: absolute;
    right: 15px;
    top: 180px;
    width: 30px;
    height: 30px;
    border-top: 10px solid #33333388;
    border-right: 10px solid #33333388;
    transform: rotate(45deg);
}


@media screen and (min-width: 375px) and (max-width: 1024px) {

    .slide_box {
        width: 100vw;
        height: 55vw;
        overflow: hidden;
        position: relative;
        z-index: 1;
    }

    .slide_box ul {
        padding: 0;
    }

    .slide_box ul li {
        width: 100vw;
    }

    .slide_box .slide_box_num {
        position: absolute;
        right: 3vw;
        bottom: 1.5vw;
        z-index: 1;
    }

    .slide_box .slide_box_num li {
        width: 3vw;
        height: 3vw;
        float: left;
        background: #ffffff;
        margin-left: 1.5vw;
        border-radius: 3vw;
    }

    .slide_box .slide_box_num li.active {
        background: #3daafc
    }

    .slide_box_img {
        position: absolute;
        left: 0;
        top: 0;
    }

    .slide_box_img li {
        float: left;
    }

    .slide_box_img li img {
        width: 100vw;
        height: 55vw;
    }

    .slide_box_info_shade {
        height: 6vw;
        line-height: 6vw;
        width: 100%;
        background-color: #000000;
        opacity: 0.5;
        position: absolute;
        left: 0;
        bottom: 0;
    }

    .slide_box_info_title {
        position: absolute;
        left: 2vw;
        bottom: 0vw;
        font-size: 1em;
        color: #fff;
        height: 6vw;
        line-height: 6vw;
    }
    .slide_box_info_title ul li {
        width: 75%;
    }

    .slide_box_info_title li {
        font-size: 2.5vw;
    }

    .slide_box:hover .slide_box_arrow_left {
        display: block;
    }

    .slide_box:hover .slide_box_arrow_right {
        display: block;
    }

    .slide_box_arrow_left {
        cursor: pointer;
        display: none;
        position: absolute;
        left: 2.5vw;
        top: 25vw;
        width: 5vw;
        height: 5vw;
        border-top: 2vw solid #333333bb;
        border-right: 2vw solid #333333bb;
        transform: rotate(225deg);
    }

    .slide_box_arrow_right {
        cursor: pointer;
        display: none;
        position: absolute;
        right: 2.5vw;
        top: 25vw;
        width: 5vw;
        height: 5vw;
        border-top: 2vw solid #333333bb;
        border-right: 2vw solid #333333bb;
        transform: rotate(45deg);
    }
}