nav {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  background: #fff;
  box-shadow: 0px 4px 20px 0px rgba(197, 197, 197, 0.12);
  z-index: 1000;
}
.nav {
  width: 100%;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
}
.nav .logo {
  display: flex;
  align-items: center;
  color: #000000;
  font-size: 20px;
  font-weight: bold;
}
.nav .logo img {
  width: 40px;
  height: 40px;
  margin-right: 16px;
}

nav .container ul {
  height: 80px;
  display: flex;
  align-items: center;
}
nav .container ul li {
  height: 80px;
  margin-right: 40px;
}
nav .container ul li a {
  height: 74px;
  line-height: 74px;
  color: #6e7b97;
  font-size: 16px;
  box-sizing: border-box;
  border-top: 6px solid transparent;
  text-decoration: none;
}
nav .container ul li .active {
  color: #7c3aed;
  font-weight: bold;
  border-top: 6px solid #7c3aed;
  border-radius: 3px;
}
.The-advantages {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 140px;
  padding-bottom: 63px;
}
.The-advantages .container {
  align-items: center;
}
.The-advantages p {
  width: 90%;
  text-align: left;
  color: #212121;
  font-size: 50px;
  font-weight: bold;
}
.list {
  width: 100%;
}
.list .container {
  align-items: center;
}
.list-container {
  width: 90%;
  display: flex;
  flex-direction: column;
}
.list-container .line {
  width: 80%;
  height: 1px;
  background: #e0e0e0;
}
.list-container .item {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.list-container .item .left {
  width: 60%;
  display: flex;
  align-items: flex-start;
}
.list-container .item .left img {
  width: 52px;
  height: 52px;
  margin-right: 24px;
}
.list-container .item .left .text {
  display: flex;
  flex-direction: column;
}
.list-container .item .left .text .p1 {
  color: #212121;
  font-size: 36px;
  margin-bottom: 23px;
}
.list-container .item .left .text .p2 {
  color: #666666;
  font-size: 16px;
}
.list-container .item .left .text .p2 span {
  color: #7c3aed;
}
.list-container .item .right {
  width: 472px;
  height: 370px;
}
.footer {
  width: 100%;
  padding: 64px 0;
  box-sizing: border-box;
  background: #000000;
}
.footer .container {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}
.footer .left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.footer .left .title {
  color: #ffffff;
  font-size: 32px;
  margin-bottom: 32px;
  font-weight: 800;
}
.footer .left .p1 {
  color: #ffffff;
  font-size: 14px;
  line-height: 24px;
  margin-bottom: 20px;
}
.footer .left .p2 {
  color: #d1d5db;
  font-size: 14px;
  margin-bottom: 20px;
}
.footer .left .p3 {
  color: #d1d5db;
  font-size: 14px;
}
.footer .right {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.footer .right img {
  width: 80px;
  height: 80px;
  margin-bottom: 32px;
}
.footer .right p {
  color: #ffffff;
  font-size: 48px;
  font-weight: bold;
}