* {
    margin: 0;
    padding: 0;
    list-style: none;
}

img {
    border: 0;
}

.ban {
    width: 100%;
    height: 650px;
    position: relative;
    margin: 40px auto 0 auto;
}

.ban2 {
    width: 100%;
    height: 650px;
    position: relative;
    overflow: hidden;
}

.ban2 ul {
    position: absolute;
    left: 0;
    top: 0;
  
}

.ban2 ul li {
    width: 830px;
    height: 650px;
}
.ban2 ul li img{
    width: 100%;
    height: 100%;
}

.prev {
    float: left;
    cursor: pointer;
}

.num {
    height: 82px;
    /* overflow: hidden; */
    width: 100%;
    position: relative;
    float: left;
}

.min_pic {
    padding-top: 10px;
    margin-top: 15px;
    width: 100%;
    display: flex;
    justify-content: space-around;
}

.num ul {
    width: 100% !important;
    display: flex;
    /* justify-content: space-between; */
    position: absolute;
    left: 0;
    top: 0;
}

.num ul li {
    width: 22%;
    height: 133px;
    margin-right: 5px;
    padding: 1px;
}

.num ul li.on {
    border: 1px solid red;
    padding: 0;
}
.num ul li img{
    width: 100%;
    height: 100%;
}



.prev1 {
    position: absolute;
    top: 220px;
    left: 20px;
    width: 28px;
    height: 51px;
    z-index: 9;
    cursor: pointer;
}

.next1 {
    position: absolute;
    top: 220px;
    right: 20px;
    width: 28px;
    height: 51px;
    z-index: 9;
    cursor: pointer;
}

.mhc {
    background: #000;
    width: 100%;
    opacity: 0.5;
    -moz-opacity: 0.5;
    filter: alpha(Opacity=50);
    position: absolute;
    left: 0;
    top: 0;
    display: none;
}

.pop_up {
    width: 500px;
    height: 500px;
    padding: 10px;
    background: #fff;
    position: fixed;
    -position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -255px;
    margin-top: -255px;
    display: none;
    z-index: 99;
}

.pop_up_xx {
    width: 40px;
    height: 40px;
    position: absolute;
    top: -40px;
    right: 0;
    cursor: pointer;
}

.pop_up2 {
    width: 500px;
    height: 500px;
    position: relative;
}
.pop_up2 {
    width: 500px;
    height: 500px;
    position: relative;
    overflow: hidden;
    float: left;
}

.pop_up2 ul {
    position: absolute;
    left: 0;
    top: 0;
}

.pop_up2 ul li {
    width: 500px;
    height: 500px;
    float: left;
}