body,ul,li,h2,h4,p{
    margin: 0;
    padding: 0;
    list-style: none;
}
a {
    margin: 0;
    padding: 0;
    text-decoration: none;
}

/* nav开始 */
.nav {
    width: 100%;
    height: 70px;
    position: relative; 
}
.nav-left {
    float: left;
    height: 50px;
    margin-top: 10px;
    margin-left: 2.6%;
   
}
.nav-left span {
    font-size: 12px;
    color: #999999;
    position: absolute;
    top: 0;
    left: 0;
}
.nav-left img {
    height: 100%;
}
.nav-list {
    width: 80%;
    height: 70px;
    float: right;
}
.nav-list li {
    float: right;
    display: block;
    font-size: 16px;
    line-height: 70px;
    position: relative;

}
.list-changping:hover .more-2{ 
    display: block;
}
.list-about:hover .more-1{ 
    display: block;
}

.nav-list li>a {
    color: #666;
    float: left;
    padding: 0 50px;
    box-sizing: border-box;
    height: 70px;
    line-height: 70px;
    overflow: hidden;
    font-weight: 550;
    z-index: 10;
}
.box {
    width: 100%;
    height: 0;
    position: absolute;
    top: 0;
    left: 0;
    background-color: blue;
    z-index: -1;
}
.more-1 {
    width: 750px;
    height: 70px;
    display: none;
    background-color: rgba(0, 0, 0,0.7);
    position: fixed;
    top: 70px;
    right: 0;
    transition: display 1s;
    z-index: 10;
}
.more-2 {
    width: 570px;
    height: 100px;
    display: none;
    background-color: rgba(0, 0, 0,0.7);
    position: fixed;
    top: 70px;
    right: 0;
    z-index: 10;
}
.more-1 a {
    display: block;
    float: left;
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    margin-top: 10px;
    line-height: 30px;
    margin-right: 5%;
    padding: 5px 0;
}
.more-2 a {
    display: block;
    float: left;
    font-weight: 500;
    font-size: 14px;
    color: #fff;
    margin-top: 10px;
    line-height: 30px;
    margin-right: 5%;
    padding: 5px 0;
}
/* nav结束 */
/* banner开始 */
.banner {
    width: 100%;
    position: relative;
}
.banner img {
    width: 100%;
}
.center-dw {
    width: 1320px;
    overflow: hidden;
    position: absolute;
    left: 50%;
    margin-left: -660px;
    top: 25%;
}
.center-h1 {
    width: 100%;
    overflow: hidden;
    color: #fff;
    font-size: 24px;
    line-height: 50px;
    margin-bottom: 5%;
}
.center-h2 {
    width: 100%;
    overflow: hidden;
    font-size: 14px;
    color: #fff;
}
.qiu {
    width: 100px;
    height: 100px;
    background-color: #fff;
    border-radius: 50px;
    overflow: hidden;
    position: absolute;
    right: 16%;
    bottom: -80px;
    cursor: pointer;
}
.huadong {
    width: 24px;
    height: 100%;
    margin: 0 auto;
    overflow: hidden;
}
.huadong img {
    width: 100%;
    animation: myMove 2s infinite;
    position: relative;
    top:0
}
@keyframes myMove {
    0% {
        top: 0px;
    }

    50% {
        top: 30px;
    }

    100% {
        top: 0px;
    }
}
.map {
    position: absolute;
    right: 16%;
    bottom: 4%;
    overflow: hidden;
    width: 28.5%;
}
.map img {
    /* height: 100%; */
    width: 100%;
}
/* banner结束 */
/* container开始 */
.container {
    width: 1320px;
    margin-right: auto;
    margin-left: auto;
}
.chanpin {
    width: 100%;
    overflow: hidden;
    padding: 100px 0px;
    box-sizing: border-box;
}
.cooperation-bt {
    width: 100%;
    text-align: center;
    font-size: 30px;
    color: #333333;
    font-weight: bold;
    margin-bottom: 50px;
}
.cooperation-list li {
    width: 22%; 
    position: relative;
    min-height: 1px;
    padding-right: 15px;
    padding-left: 15px;
    float: left;
    margin-top: 20px;
}
.coo-one {
    width: 100%;
    overflow: hidden;
    border-radius: 10px;
    border: 1px solid #e6e6e6;
    box-sizing: border-box;
    position: relative;
}
.coo-one:hover .coo-dw {
    transform: rotateX(360deg);
    opacity: 1;
}

.coo-one img {
    width: 100%;
}
.coo-dw {
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: 10px;
    position: absolute;
    left: 0px;
    top: 0px;
    background-color: #0054a8;
    transform: rotateX(180deg);
    transition: all .5s;
    opacity: 0;
}

.coo-nr {
    width: 100%;
    overflow: hidden;
    margin-top: 24%;
}
.coo-zi {
    width: 60%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    border-right: 2px solid #fff;
    text-align: center;
    font-size: 22px;
    line-height: 30px;
    font-weight: bold;
    box-sizing: border-box;
    color: #fff;
    margin-top: 5px;
    float: left;
}
.coo-logo {
    width: 39%;
    float: right;
}
.logo-tu {
    width: 36px;
    margin: 0 auto;
    overflow: hidden;
}
.logo-tu img {
    width: 100%;
}
/* container结束 */
/* 底部开始 */
.bottom {
    width: 100%;
    overflow: hidden;
    background-color: #242424;
}
.bottom-fw {
    width: 87%;
    overflow: hidden;
    margin: 0 auto;
    padding: 10px 4% 5px 0px;
    box-sizing: border-box;
}
.bottom-list {
    width: 100%;
    overflow: hidden;
}
.bottom-list li {
    overflow: hidden;
    float: left;
    width: 33.3%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.bottom-icon {
    width: 40px;
    overflow: hidden;
    float: left;
    margin-right: 14px;
}
.bottom-icon img {
    width: 100%;
}
.bottom-list li h4 {
    font-size: 13px;
    line-height: 34px;
    color: #999999;
    float: left;
}
.zhichi {
    width: 100%;
    text-align: left;
    font-size: 14px;
    line-height: 30px;
    color: #5c5c5c;
    background-color: #242424;
    padding: 0px 15px;
    box-sizing: border-box;
}
.zhi-fw {
    width: 73%;
    overflow: hidden;
    margin: 0 auto;
}
/* 底部结束 */