.main .nav a:nth-child(3) {
  padding-bottom: 0.0625rem;
  border-bottom: 0.06rem solid #004098;
  color: #004098;
}

.main .exhibition .footer {
  width: 75%;
  margin: 0 auto;
  
}

.main .exhibition .footer .box {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.main .exhibition .footer .box .left {
  width: 13rem;
  height: 6rem;
  /* text-align: center; */
  display: flex;
  align-items: center;
  justify-content: center;
}

.main .exhibition .footer .box .left .left-son {
  display: flex;
}

.main .exhibition .footer .box p {
  flex: 1;
  font-size: 0.34rem;
  margin: auto 0;
  line-height: 1.25rem;
}

.main .exhibition .footer .box .left i {
  display: inline-block;
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background-color: #004098;
  margin-right: 0.1875rem;
  margin-top: 0.45rem;
}

.main .exhibition .footer .box .right {
  width: 12rem;
  height: 6rem;
}

.main .exhibition .footer .box .right img {
  width: 100%;
  height: 100%;
  border-radius: 0.3125rem;
}

.main .exhibition .footer .box:nth-child(2n) .right {
  height: 8rem;
}

.main .exhibition .footer .box:nth-child(3) .left,
.main .exhibition .footer .box:nth-child(4) .left {
  flex-direction: column;
  justify-content: space-around;
  align-items: flex-start;
}

.exhibition .banner {
  width: 75%;
  margin: 0 auto;
  text-align: center;
  margin-top: 1rem;
}

.exhibition .banner img {
  width: 100%;
  height: 6.5rem;
  margin-bottom: 0.625rem;
}

.exhibition .banner p {
  font-size: 0.34rem;
  line-height: 0.625rem;
}

@media only screen and (max-width: 1280px) and (min-width: 768px) {
  .exhibition .footer .box {
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 1rem !important;
  }
}

@media screen and (max-width: 768px) {
  .exhibition .footer .box {
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 1rem !important;
  }

  .exhibition .footer .box .left,
  .exhibition .footer .box .right {
    width: 90% !important;
    height: 5rem !important;
    margin-bottom: 0.5rem;
  }

  .main .exhibition .footer .box:nth-child(2n) .right {
    height: 6rem;
  }

  .main .exhibition .footer .box p {
    font-size: 0.3rem;
    line-height: 0.7rem;
  }

  .exhibition .banner img{
   height: 5rem;
  }
  
}