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

img {
    border: 0;
    vertical-align: middle;
}

.ban {
    width: 600px;
    position: relative;
    overflow: hidden;
}

.ban2 {
    height: 450px;
    position: relative;
    overflow: hidden;

    border: 1px solid #ddd;
}

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

.ban2 ul li {
    width: 600px;
    height: 450px;
    background-color: #ededed;
}

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

.num {
    height: 77px;
    overflow: hidden;
    width: 500px;
    position: relative;
    float: left;
}

.min_pic {
    padding-top: 10px;
    width: 600px;

    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.num ul li {
    width: 100px;
    height: 75px;
    margin-right: 10px;
    border: 1px solid #ddd;
}

.num ul li a {
    display: block;
    width: 100%;
    height: 100%;
    text-align: center;

    position: relative;
}

.num ul li a .min-img {
    max-width: 100px;
    max-height: 75px;
    -o-object-fit: cover;
    object-fit: cover;

    position: absolute;
    z-index: 10;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

.num ul li.on {
    border: 1px solid #bbbbbb;
    padding: 0;
}

.prev_btn1 {
    line-height: 80px;
    height: 80px;
    width: 25px;
    background-color: #bbbbbb;
    color: #fff;
    display: block;
    z-index: 9998;
    text-align: center;
    font-size: 20px;
    cursor: pointer;
    border-radius: 3px;
}

.next_btn1 {
    line-height: 80px;
    height: 80px;
    width: 25px;
    background-color: #bbbbbb;
    color: #fff;
    display: block;
    z-index: 9998;
    text-align: center;
    font-size: 20px;
    cursor: pointer;
    border-radius: 3px;
}

.prev1 {
    position: absolute;
    top: 200px;
    left: 20px;
    width: 28px;
    height: 51px;
    z-index: 9;
    cursor: pointer;
}

.next1 {
    position: absolute;
    top: 200px;
    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: 600px;
    height: 450px;
    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: 600px;
    height: 450px;
    position: relative;
    overflow: hidden;
}

.pop_up2 {
    width: 600px;
    height: 450px;
    position: relative;
    overflow: hidden;
    float: left;
}

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

.pop_up2 ul li {
    width: 600px;
    height: 450px;
    float: left;
}

.ban2 ul li a {
    display: block;
    width: 100%;
    height: 100%;
    text-align: center;
    position: relative;
}

.ban2 ul li a .switch-img {
    max-width: 595px;
    max-height: 450px;
    -o-object-fit: cover;
    object-fit: cover;

    position: absolute;
    z-index: 10;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

a {
    color: #333;
    text-decoration: none;
    cursor: pointer;
    outline: 0 none;
    -webkit-transition: all 0.3s ease 0s;
    -moz-transition: all 0.3s ease 0s;
    -o-transition: all 0.3s ease 0s;
    transition: all 0.3s ease 0s;
}