.nav-top {
  background: #fff;
  opacity: 1;
}
.backbg {
  position: relative;
}
.backbg img {
  width: 100%;
}
.backbg div {
  position: absolute;
  color: #fff;
  top: 50%;
  left: 25%;
  transform: translate(0, -50%);
}
.backbg div .cn {
  font-size: 40px;
  letter-spacing: 13px;
}
.backbg div .cn span {
  color: #ff6612;
}
.backbg div .en {
  font-size: 26px;
  letter-spacing: 5px;
}
.about-sponsor .about-sponsor-main {
  margin: 0 auto;
  max-width: 1200px;
  padding: 60px 0 140px 0;
}
.about-sponsor .about-sponsor-main .title {
  text-align: center;
}
.about-sponsor .about-sponsor-main .title h2 {
  font-size: 30px;
  color: #a0876c;
}
.about-sponsor .about-sponsor-main .title .cn {
  font-size: 16px;
  margin: 10px 0 18px 0;
  color: #666666;
}
.about-sponsor .about-sponsor-main .line {
  max-width: 1100px;
  margin: 0 auto;
  height: 1px;
  background-color: #dbdbdb;
}
.about-sponsor .about-sponsor-main .content-wrap {
  padding: 50px;
}
.about-sponsor .about-sponsor-main .content-wrap img {
  margin: 0 auto;
  display: block;
  width: 100%;
}
@media screen and (max-width: 768px) {
  .backbg img {
    height: 150px;
    object-fit: cover;
  }
  .backbg div {
    width: 90%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  .backbg div .cn {
    font-size: 24px;
    letter-spacing: 5px;
  }
  .backbg div .en {
    font-size: 20px;
    letter-spacing: 1px;
  }
  .about-sponsor .about-sponsor-main {
    padding: 30px 0 50px 0;
  }
  .about-sponsor .about-sponsor-main .title h2 {
    font-size: 24px;
  }
  .about-sponsor .about-sponsor-main .content-wrap {
    padding: 10px;
  }
  .about-sponsor .about-sponsor-main .content-wrap img {
    width: 90%;
  }
}