html,
body,
.warpper {
    width: 100%;
}

/* .warpper {} */

header,
.about,
.news,
.video {
    width: 1200px;
    margin: 0 auto;
    text-align: center;
}

header {
    /* 盒子水平 */
    display: flex;
}

.logo img {
    margin-left: 120px;
    width: 116px;
}

.nav {
    /* 与logo高度相同 */
    height: 67.53px;
    /* border-left: 2px solid rgb(143, 41, 146);
    border-right: 2px solid rgb(143, 41, 146); */
    margin-left: 140px;
}

.nav a {
    color: black;
}

.nav li {
    /* li 水平浮动 */
    float: left;
    /* 与nav高度减差4px，留出下线的4px */
    line-height: 63.53px;
    margin: 0px 20px;
    font-size: larger;
}

/* 字体颜色 必须是a:hover */
.nav li:hover {
    border-bottom: 4px solid #53bdfd;
    cursor: pointer;
}

.nav li a:hover {
    color: #53bdfd;
}

.nav ul li:first-child {
    border-bottom: 4px solid #53bdfd;
    cursor: pointer;
}

ul li:first-child a {
    color: #53bdfd;
}

.language {
    margin-left: 50px !important;
}

.language a {
    padding: 6px;
}

.language a:hover {
    border: 1px solid gray;
}

.language .active {
    border: 1px solid gray;
}

/* 轮播 */
.banner {
    display: flex;
    /* 超出隐藏 */
    overflow: hidden;
}

/* 主体 */

.de_line {
    width: 32px;
    height: 4px;
    background-color: #53bdfd;
    margin: 0 auto;
    position: relative;
    bottom: 18px;
}

.profile {
    width: 100%;
    margin: 30px auto;
    line-height: 1.5em;
}

.culture-list {
    display: flex;
}

.culture-list ul {
    margin: 0 auto;
}

.culture-list li {
    width: 215px;
    float: left;
    margin: 50px 30px;
    line-height: 1.5em;
}

.culture-list img {
    /* 图片居中 */
    margin: 0 auto 40px;
}

.culture-list p {
    margin-top: 20px;
}


.product .title {
    text-align: center;
}

.title p {
    margin-bottom: 40px;
}


.pro-list li {
    float: left;
    /* 6*16.66 = 100 */
    width: 16.66%;
}

.pro-list p {
    background-color: #e5e5e5;
    padding: 5px 20px;
    /* display: inline-block; */
}

.pro-list .active {
    background-color: #53bdfd;
    color: white;
}

.pro-list span {
    background-color: #999999;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    /* 暂时影藏 */
    display: none; 
}

/* news  */
.news {
    position: relative;
    top: 50px;
}
.news-content {
    display: flex;
    margin: 0 auto;
}
.news-left {
    width: 50%;
}
.news-left img {
    width: 550px;
}
.news-right {
    width: 50%;
    text-align: left;

}
.news-right h4 {
    color: #53bdfd;
    font-size: 15px;
    font-weight: 200;
    margin-bottom: 20px;
}
.news-right p {
    color: gray;
    /* font-size: 10px!;   */
    border-bottom: 0.5px dashed gray;
    padding-bottom: 20px;
}
.news-right ul li{
    list-style-type: disc;
    height: 35px;
    line-height: 35px;
    border-bottom: 0.5px dashed gray;
}
   
.video {
    position: relative;
    top: 70px;
}

.video-list img{
    /* margin: 0 auto; */
    width: 100%;
}

/* 页脚 */

footer {
    position: relative;
    top: 200px;
    background-color: #53bdfd;
    width: 100%;
    height: 350px;
    color: white;
    
}
.footer_top {
    display: flex;
}
.footer_left {
    width: 65%;
    height: 250px;
    text-align: center;
   padding-bottom: 30px;
}
table {
    position: relative;
    top: 40px;
    margin:0  50px;
}
footer table thead{
    font-size: 14px;
}
.footer_left table td,th{
    padding: 0 50px;
    user-select: none;
}
.footer_left table td:hover{
    cursor: pointer;
    color: #89cbff;
}
.footer_right {
    width: 35%;
    height: 250px;
    float: left;
    padding-top: 60px;
}

.footer_right input,textarea,button {
    background-color: #53bdfd;
    border: 1px solid white;
    color: white;
    font-size: 16px;
    resize: none;
    text-indent: 1px;
}

.footer_right input {
    margin: 0 8px 8px 0;
    width: 142px;
}

.footer_right button {
    display: block;
    width: 100px;
    margin-top: 5px;
    font-size: small;
    padding: 5px 0;
}
.footer_right button:hover {
    background-color: #89cbff;
}

input:-moz-placeholder,   
textarea:-moz-placeholder {   
    color: #89cbff;  
    font-size:10px; 
}   

input:-ms-input-placeholder,   
textarea:-ms-input-placeholder {   
    color: #89cbff;   
    font-size:10px; 
}   
  
input::-webkit-input-placeholder,   
textarea::-webkit-input-placeholder {   
    color: #89cbff;   
    font-size:10px; 
}  

.footer_bottom {
    clear: both;
    display: block;
    /* width: 100%; */
}
.line {
    width: 100%;
    height: 1px;
    background-color: white;
}

.footer_bottom p{
    text-align: center;
    line-height: 39px;
}