.nav-wrapper {
  width: 100%;
  min-width: 1360px;
  box-sizing: border-box;
  height: 80px;
  background-color: #fff;
  /* padding-left: 18.541%; */
  display: flex;
  align-items: center;
  position: fixed;
  z-index: 22;
  left: 0;
  right: 0;
  top: 0;
}
.nav-wrapper .logo {
  margin-left: 18.541%;
  width: 139px;
  display: block;
}
.nav-wrapper .nav-box {
  width: 33.33%;
  margin-left: 14.583%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-box  .nav-item {
  height: 40px;
  font-size: 20px;
  color: #666666;
  cursor: pointer;
  position: relative;
}
.nav-box  .nav-item.active {
  color: #3E93FF;
}
.nav-box  .nav-item.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background-color: #3D94FF;
  border-radius: 50%;
}
.main-img {
  width: 100%;
  height: auto;
  display: block;
}

.footer-wrappper {
  width: 100%;
  height: 85px;
  box-sizing: border-box;
  background-color: #303743;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  padding: 12px 0;
}
.footer-wrappper .top-box {
  line-height: 30px;
}