* {
  margin: 0;
  padding: 0;
}
body {
  font-family: "Helvetica Neue", Helvetica, Arial,Tahoma,"Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Heiti SC", "WenQuanYi Micro Hei", sans-serif;
}

li {
  list-style: none;
}

a {
  text-decoration: none;
  color: black;
  transition: color 0.3s; /* 颜色变化动画 */
}

a:hover {
  color: cadetblue;
}



.nav-items{
  box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px;
  margin-top: 3vh;
}

.nav1 {
  /* gap:10px; */
  /* width: 400px;
  height: 50px; */
  /* border: 1px solid red; */
  /*margin: 200px auto;*/
  /* width:auto; */
  margin-left: 5vw;
  font-size: 1em;
  height:1vh;
  /* width:40vw; last change */
  vertical-align: middle;
  width:100%;
}

.logo{
  margin-left: 5vh; 
  
  width:8%;
  height: 2%;
  margin-bottom:1vh;
}



/* .img{
  object-fit: cover;
  background-size: cover;
} */

.nav1>li {
  float: left;
  
}

.nav1 a {
  /* margin-left: 30%; */
  /* display: flex; */
  /* width: 60%; */
  /* margin-top:3%; */
  height: 4vh;
  /*box-sizing: border-box;*/
  /*color: #333;*/
  text-align: center;
  background-color: white;
  padding-inline: 3vw;
  display:block;
  font-size:1.2em;
  
}

.nav2 {
  /* 初始隐藏二级导航 */
  /* margin-top: 4vh; */
  display: none;
  /* 相对定位 */
  position: relative;
  
}
.nav2 li{
  width:100%;
  height:140%;
  /* box-shadow: rgba(0, 0, 0, 0.1) 0px 0px 12px; */
  /* text-align: center; */
}

.nav2 a{
  color:#666;
  text-align:left;
  font-size:90%;
  padding-left: 2vw;
  line-height: 4vh;
}

.nav1 li:hover .nav2 {
  display: block;
}

.nav3 {
  width: 100%;
  /* height: 200px; */
  /* 绝对定位 */
  position: absolute;
  left: 100%;
  top: 0px;
  /*font: 16px/200px "宋体";*/
  color: #333;
  text-align: center;
  /* 隐藏三级导航 */
  display: none;
  z-index: 1;
}

.nav2 li:hover .nav3 {
  /* 显示三级导航 */
  display: block;
  
}

.nav {
  width:fit-content;
  /* width: 45%; */
  /* height:120%; */
  position: absolute;
  text-align: center;
  /* margin-top: 1%; */
  top: 5%;
  padding: 10px;
  right: 10%;
  font-size: 20px;
  z-index: 1;
}
.upperimage{
  position:relative;
  top: 100px; 
  display: block; 
  margin-left: auto; 
  margin-right: auto; width: 50%; transform :scale(2.01);
  
}
.language-switch {
  font-size: 12px;
  position: absolute;
  top: 2vh;
  right: 10%;
  width:;
  height:auto;
}

.middle{
  margin-left: 100px;
  margin-right:100px;
}

.description{
  margin-top: 25px;
  text-align: left;
  font-size: 19px;
  line-height: 160%;

}

#description p{
  color:rgb(51,51,51);
}

.lowerbody{
  margin-left: 10px;
  scale: 0.9;
}

h1, h2{
  text-align: center;
  margin-top: 50px;
  color: rgb(9,88,163);
}


.product {
  display: flex;
  justify-content: space-between;
  align-content: center;
  scale:0.9;
  width: 100%;
  /*padding: 10px;*/
}


.about_lower{
  overflow: auto;
  background-color: #eee;
  
}

.sections{
  scale:0.9;
}

.container{
  /* margin-top: 100px; */
  scale:0.9;
  align-items: center;
}

.container p{
  color: #3f3f3f;
}

.product img {
  padding: 30px;
  width:30%;
  padding:20px;
  /* width: 414px;
  height: 180px; */;
}

.data-table{
  scale:0.9;
  align-items: center;
  /* box-sizing: border-box; */
  
}

.solid-border-table{
  margin-left: auto;
  margin-right: auto;
}
footer{
  margin-top: 200px;
  position: absolute;
  left: 0;
  width: 100%;
}


.contact-info{
  display: flex;
  height: 120px;
  background-color: #29579e;
  font-size: 20px;
  color: white;
}

.contact-block{
  display: flex;
  width: 33vw;
  margin-left: 30px;
  margin-top: 30px;
}

.contact-block img{
  width: 30px;
  height: 30px;
  margin-right: 30px;
}

.copyright {
  height: 80px;
  background-color: #285492;
  text-align: center;
  color: white;
}

/* .hr-dashed{
  border: 0;
    border-top: 1px dashed #a2a9b6;
} */

.product-middle{
  margin-left: 10%;
  margin-right: 10%;
  margin-top: 10%;
}

header{
  display: none;
}