header {
  background: linear-gradient(35deg, #060097 0%, #8204ff 73%, #c10fff 100%);
  position: sticky;
  top: 0;
}
header .container .top {
  color: white;
  padding: 40px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header .container .top .title {
  display: inline-block;
}
header .container .top .bar {
  display: inline-block;
  vertical-align: center;
}
header .container .top .bar li {
  display: inline-block;
  height: 100%;
  padding: 0 20px;
  font-size: 18px;
}
header .container .top .bar li a {
  color: white;
  text-decoration: none;
}
header {
  position: static;
}
header .banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0 60px 0;
}
header .banner .left span {
  color: white;
  font-size: 30px;
  font-weight: 700;
  margin: 10px 0;
  display: block;
}
header .banner .left span:last-child {
  display: inline-block;
  font-size: 22px;
  margin-top: 20px;
  padding: 10px 40px;
  background-color: #FFCD57;
  border-radius: 40px;
  cursor: pointer;
}
.lab-title {
  font-size: 28px;
  margin-top: 30px;
  padding: 20px 0;
}
section .item p {
  text-align: center;
  padding: 20px 0;
  font-size: 16px;
  font-weight: 700;
}
#product {
  margin-bottom: 20px;
}
#product .item ul {
  display: flex;
  justify-content: space-between;
}
#product .item ul li {
  width: 32.5%;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
  transition: all 0.5s;
}
#product .item ul li a img {
  width: 100%;
  height: 220px;
  overflow: hidden;
  transition: all 0.5s;
}
#product .item ul li:hover {
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  transform: translateY(-3px);
  transition: all 0.5s;
}
#youshi {
  margin-bottom: 20px;
  padding: 20px 0;
}
#youshi .item ul {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
#youshi .item ul li {
  width: 20%;
  margin: 0 6px;
  overflow: hidden;
  transition: all 0.5s;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}
#youshi .item ul li a img {
  padding-top: 20px;
  width: 100px;
  height: 100px;
  overflow: hidden;
  transition: all 0.5s;
}
#youshi .item ul li:hover {
  transform: translateY(-3px);
  transition: all 0.5s;
}
#aboutus {
  margin-bottom: 20px;
  padding: 20px 0;
}
#aboutus .content {
  display: flex;
  justify-content: space-between;
}
#aboutus .content .left {
  padding: 0 10px 0 0;
  font-size: 18px;
  line-height: 2;
}
#aboutus .content .right img {
  height: 300px;
  width: 500px;
  object-fit: cover;
  border-radius: 4px;
}
#whychoiseus {
  margin-bottom: 20px;
}
#whychoiseus .item ul {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
#whychoiseus .item ul li {
  width: 30%;
  overflow: hidden;
  transition: all 0.5s;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}
#whychoiseus .item ul li a img {
  width: 100px;
  height: 100px;
  padding-top: 20px;
  overflow: hidden;
  transition: all 0.5s;
}
#whychoiseus .item ul li:hover {
  transform: translateY(-3px);
  transition: all 0.5s;
}
#comment {
  background-color: #F9F6FE;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 80px 0;
  color: #67768E;
  font-size: 18px;
}
#comment img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 4px solid white;
}
#comment .content {
  padding: 20px 0;
  font-style: italic;
  font-size: 20px;
}
#contentus {
  background: linear-gradient(35deg, #060097 0%, #8204ff 64%, #c10fff 98%);
  padding-top: 80px;
  padding-bottom: 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
#contentus .content {
  color: white;
  font-size: 42px;
  font-weight: 700;
}
#contentus a {
  padding: 10px 60px;
  margin-top: 30px;
  color: black;
  font-size: 22px;
  background-color: #FFCD57;
  border-radius: 40px;
  cursor: pointer;
}
footer {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 20px 0;
  font-size: 18px;
}
footer .copyright {
  padding: 10px 0 10px 0;
}
footer .icp a {
  color: #0600A1;
}
footer .icp a:hover {
  color: #C30FFF;
}
#back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
}
#back-to-top img {
  width: 40px;
  height: 40px;
}