@keyframes mymove {
  50% {
    bottom: 100px;
  }
  75% {
    bottom: 120px;
  }
  100% {
    bottom: 100px;
  }
}
@keyframes minscreenmove {
  50% {
    bottom: 40px;
  }
  75% {
    bottom: 50px;
  }
  100% {
    bottom: 40px;
  }
}
.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-guide {
  position: relative;
}
.about-guide .about-guide-main {
  margin: 0 auto;
  max-width: 1200px;
  padding: 60px 0 70px 0;
}
.about-guide .about-guide-main .title {
  text-align: center;
}
.about-guide .about-guide-main .title h2 {
  font-size: 30px;
  color: #a0876c;
}
.about-guide .about-guide-main .title .cn {
  font-size: 16px;
  margin: 10px 0 18px 0;
  color: #666666;
}
.about-guide .about-guide-main .line {
  max-width: 1100px;
  margin: 0 auto;
  height: 1px;
  background-color: #dbdbdb;
}
.about-guide .about-guide-main .content-wrap {
  padding: 50px;
}
.about-guide .about-guide-main .content-wrap .downloadlist li {
  margin-top: 30px;
  list-style: none;
}
.about-guide .about-guide-main .content-wrap .downloadlist li div {
  padding: 30px 18px;
  border-radius: 30px;
  box-shadow: 0 0 5px #8f8f8f;
}
.about-guide .about-guide-main .content-wrap .downloadlist li div img {
  margin: 0 auto;
  display: block;
}
.about-guide .about-guide-main .content-wrap .downloadlist li div .title {
  font-size: 22px;
  margin: 30px 20px;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-line-clamp: 1;
}
.about-guide .about-guide-main .content-wrap .downloadlist li div .title a {
  color: #333;
}
.about-guide .about-guide-main .content-wrap .downloadlist li div .dncover {
  margin-top: 30px;
}
.about-guide .about-guide-main .content-wrap .downloadlist li div .dncover img {
  width: 100%;
  height: 219px;
  object-fit: cover;
  border-radius: 20px;
}
.about-guide .about-guide-main .content-wrap .more {
  position: absolute;
  bottom: 140px;
  left: 50%;
  transform: translate(-50%, -100%);
  animation: mymove 3s ease-in-out 1s forwards infinite alternate;
}
.about-guide .about-guide-main .content-wrap .more img {
  display: block;
}
.about-guide .about-guide-main .content-wrap .more:hover {
  animation-play-state: paused;
}
.about-guide .about-guide-main .content-wrap .bottom-line {
  margin-top: 200px;
  max-width: 1200px;
  height: 1px;
  border: 1px dashed #9c9c9c;
}
@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-guide .about-guide-main {
    padding: 30px 0;
  }
  .about-guide .about-guide-main .title h2 {
    font-size: 24px;
  }
  .about-guide .about-guide-main .content-wrap {
    padding: 10px;
  }
  .about-guide .about-guide-main .content-wrap .downloadlist li {
    margin-top: 10px;
  }
  .about-guide .about-guide-main .content-wrap .downloadlist li div {
    padding: 10px;
  }
  .about-guide .about-guide-main .content-wrap .downloadlist li div .title {
    margin: 10px;
    font-size: 20px;
  }
  .about-guide .about-guide-main .content-wrap .downloadlist li div .dnicon img {
    width: 40px;
  }
  .about-guide .about-guide-main .content-wrap .more {
    bottom: 50px;
    animation: minscreenmove 3s ease-in-out 1s forwards infinite alternate;
  }
  .about-guide .about-guide-main .content-wrap .more img {
    width: 40px;
  }
  .about-guide .about-guide-main .content-wrap .bottom-line {
    margin-top: 100px;
  }
}