.banner {
    margin: 0 auto;
    width: 1920px;
    left: 50%;
    margin-left: -960px;
    overflow: hidden;
    position: relative;
}

.banner .reuse1 {
    font-size: 40px;
    color: #fff;
    position: absolute;
    top: 100px;
    left: 0;
    right: 0;
    margin: auto;
    z-index: 9999;
    text-align: center;
    padding-bottom: 20px;
    background: url(../images/h2bj.png) no-repeat center bottom;
    font-family: 微软雅黑;
}

.large_box {
    width: 100%;
    overflow: hidden;
}

.large_box li {
    display: none;
}

.large_box li:first-child {
    display: block;
}

.large_box img {
    display: block;
    width: 100%;
    height: auto;
}

.small_box {
    width: 1427px;
    height: 325px;
    margin: 0 auto;
    position: relative;
    z-index: 9999;
    position: absolute;
    left: 0;
    right: 0;
    bottom: 200px;
}

.small_list {
    position: relative;
    width: 1255px;
    height: 325px;
    margin: 0 auto;
}

.small_list ul {
    /* height: 325px; */
    /* overflow: hidden; */
}

.small_list ul li {
    position: relative;
    float: left;
    margin-right: 22px;
    margin-left: 22px;
    width: 203px;
    height: 203px;
    cursor: pointer;
    border-radius: 50%;
    transition-duration: 0.6s;
}

.small_list ul li:hover img {
    border: 10px solid rgba(255, 255, 255, 1);
    border-radius: 100px;
    -webkit-border-radius: 100px;
    -moz-border-radius: 100px;
    -ms-border-radius: 100px;
    -o-border-radius: 100px;
}

.small_list ul li:hover {
    transform: translateY(-50px);
}

.small_list ul li img {
    display: block;
    width: 203px;
    height: 203px;
    position: relative;
    border: 10px solid rgba(255, 255, 255, 0);
}

.small_list ul li h3 {
    font-size: 18px;
    font-weight: normal;
    color: #fff;
    text-align: center;
    line-height: 40px;
    padding-top: 36px;
    font-family: 微软雅黑;
}

.small_list ul li .bun_bg {
    background: rgba(0, 0, 0, 0.5);
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    transition: all 0.3s;
    border-radius: 50%;
    display: none;
}

.small_list ul li:hover h3 {
    text-decoration: underline;
}

.small_list ul li.hover .bun_bg {
    opacity: 0;
}

.small_list ul li.hover h3 {
    text-decoration: underline;
    color: #fff;
}

.btnx {
    display: none;
    width: 24px;
    height: 42px;
    cursor: pointer;
    margin-top: 54px;
    position: absolute;
}

.left_btn {
    left: 30px;
    top: 37px;
    margin-right: 10px;
    background-image: url(../images/left_btn.png);
    margin-left: 5px;
}

.left_btn:hover {
    background-image: url(../images/left_btn1.png);
}

.right_btn {
    right: 30px;
    top: 37px;
    background-image: url(../images/right_btn.png);
    margin-right: 5px;
}

.right_btn:hover {
    background-image: url(../images/right_btn1.png);
}

.btn1 {
    display: block;
    width: 80px;
    height: 80px;
    background-repeat: no-repeat;
    background-position: center center;
    cursor: pointer;
    margin-top: 0px;
    position: absolute;
}

.left_btn1 {
    margin-right: 10px;
    background-image: url(../images/left2.png);
    left: -175px;
    top: -315px;
    transition: all 0.3s;
}

.right_btn1 {
    float: right;
    background-image: url(../images/righ2.png);
    right: -175px;
    top: -315px;
    transition: all 0.3s;
}

.banner .left_btn1:hover {
    background-image: url(../images/left1.png);
}

.banner .right_btn1:hover {
    background-image: url(../images/righ1.png);
}