.banner-wrap {
  position: relative;
}
.banner-wrap img {
  width: 100%;
  object-fit: contain;
  display: block;
}
.banner-wrap .hover {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.banner-wrap .hover small {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 3px;
  margin-top: 10px;
}
.banner-wrap .hover h2 {
  font-size: 60px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 15px 0 0;
}
@media screen and (max-width: 640px) {
  .banner-wrap img {
    height: 240px;
    object-fit: cover;
  }
  .banner-wrap .hover h2 {
    font-size: 24px;
  }
  .banner-wrap .hover small {
    font-size: 14px;
  }
}

.culture-wrap {
  background: url(/images/h3.png) no-repeat center;
  background-size: cover;
  overflow: hidden;
  padding: 100px 0 80px;
}
.culture-wrap .content {
  max-width: 1100px;
  margin: 0 auto;
}
.culture-wrap .content > h2 {
  font-size: 28px;
  color: #000;
  text-align: center;
  margin: 0 auto 15px;
}
.culture-wrap .content > h2 > span {
  font-size: 18px;
  font-weight: 400;
  margin-left: 10px;
}
.culture-wrap .content > small {
  display: block;
  text-align: center;
  color: #666;
  margin-bottom: 10px;
}
.culture-wrap .rw {
  display: flex;
  justify-content: space-around;
  margin-top: 160px;
}
.culture-wrap .col:first-child {
  --distance-length: 30px;
  animation: bounce 3s ease-in-out infinite;
}
.culture-wrap .col:nth-child(2) {
  --distance-length: -50px;
  animation: bounce 5s ease-in-out infinite;
}
.culture-wrap .col:nth-child(3) {
  --distance-length: 30px;
  animation: bounce 3s ease-in-out infinite;
}
.culture-wrap .col:nth-child(4) {
  --distance-length: -50px;
  animation: bounce 4s ease-in-out infinite;
}
.culture-wrap .col:last-child {
  --distance-length: 30px;
  animation: bounce 5s ease-in-out infinite;
}
.culture-wrap .col:nth-child(even) {
  margin-top: 80px;
}
.culture-wrap .col:nth-child(3) {
  margin-top: -60px;
}
.culture-wrap .col .head span {
  display: block;
  font-size: 28px;
  transform: color .3s ease;
}
.culture-wrap .col:hover span,
.culture-wrap .col:hover p {
  color: var(--main-color);
  cursor: pointer;
}
.culture-wrap .col .head span:last-child {
  margin-left: 14px;
}
.culture-wrap .col:nth-child(even) .head span:last-child {
  margin-left: unset;
}
.culture-wrap .col .desc {
  display: flex;
  justify-content: center;
  margin-top: 30px;
}
.culture-wrap .col .desc p {
  margin: unset;
  writing-mode: vertical-rl; /* 从右到左的垂直书写 */
  text-orientation: upright; /* 文本方向为直立 */
  white-space: nowrap; /* 防止文本换行 */
  font-size: 18px;
  letter-spacing: 4px;
  transform: color .3s ease;
}
.culture-wrap .desc p:first-child {
  margin-top: 34px;
}
.culture-wrap .desc p:last-child {
  margin-left: 10px;
}
.culture-wrap .col:nth-child(even) .head span:last-child::before,
.culture-wrap .col:nth-child(odd) .head span:first-child:after {
  display: inline-block;
  content: "";
  width: 20px;
  height: 20px;
  background: url(/images/dot.png) no-repeat center;
  background-size: contain;
  transform: translateY(-3px);
}
.culture-wrap .col:nth-child(odd) .head span:first-child:after {
  margin-left: 5px;
}
.culture-wrap .col:nth-child(even) .head span:last-child::before {
  margin-right: 5px;
}