.about-s4 {
  padding: 6.25vw;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  background-image: url("../images/about/img-3.jpg");
}

.about-s4 .label {
  text-align: center;
  font-weight: 600;
  color: #272c31;
}

.about-s4 .swiper-block {
  position: relative;
}

.about-s4 .items {
  padding: 3.75rem;
}

.about-s4 .item {
  width: 33.33vw;
  box-shadow: 0 0 1.875rem rgba(0, 0, 0, 0.1);
}

.about-s4 .item .img-box {
  overflow: hidden;
}

.about-s4 .item img {
  display: block;
  width: 100%;
}

.about-s4 .item span {
  display: block;
  color: #272c31;
  text-align: center;
  background-color: #fff;
  padding: 1.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.about-s4 .button {
  width: 48px;
  height: 48px;
  position: absolute;
  top: 50%;
  margin-top: -24px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  background-image: url("../images/about/icon-5.svg");
  cursor: pointer;
  z-index: 2;
}

.about-s4 .prev {
  left: 0;
}

.about-s4 .next {
  right: 0;
  transform: rotateY(180deg);
}

.about-s4 .pagination {
  font-size: 0;
  text-align: center;
  margin-top: 2rem;
  display: none;
}

.about-s4 .pagination span {
  display: inline-block;
  vertical-align: top;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  border: 1px solid #4b8737;
  margin: 0 2px;
  cursor: pointer;
  transition: all .3s ease;
}

.about-s4 .pagination span.active {
  background-color: #4b8737;
  border-color: #4b8737;
}

.about-s4 .comm-bg-btn {
  margin: 0 auto;
}

.about-s1 .data em,
.about-s1 .data p {
  font-size: 1.25rem;
}

.about-s1 {
  padding: 6.25vw;
}

.about-s1 .label {
  text-align: center;
  font-weight: 600;
  color: #272c31;
}

.about-s1 .tip {
  text-align: center;
  color: #272c31;
  margin-top: 2rem;
}

.about-s1 .para {
  text-align: center;
  line-height: 2;
  margin-top: 1rem;
}

.about-s1 .data-box {
  display: flex;
  justify-content: center;
  padding: 7.5rem 0 0;
  font-size: 0;
}

.about-s4 .para {
  text-align: center;
  line-height: 2;
  margin-top: 1rem;
}

.about-s1 .data {
  display: inline-block;
  vertical-align: top;
  width: 16.66%;
  text-align: center;
  position: relative;
  transition: transform .3s ease;
}

.about-s1 .data:before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 15vw;
  height: 15vw;
  max-width: 280px;
  max-height: 280px;
  transform: translate(-50%, -50%);
  filter: grayscale(100%);
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  background-image: url("../images/about/img-1.gif");
  opacity: 0;
  transition: all .3s ease;
  z-index: 1;
}

.about-s1 .data .box {
  position: relative;
  z-index: 2;
}

.about-s1 .data .num {
  display: inline-block;
  position: relative;
  color: #3c87c4;
  transition: all .3s ease;
}

.about-s1 .data span {
  display: inline-block;
  vertical-align: middle;
}

.about-s1 .data em {
  position: absolute;
  left: 100%;
  bottom: 10px;
  font-style: normal;
}

.about-s1 .data i {
  display: inline-block;
  vertical-align: middle;
  font-style: normal;
}

.about-s1 .data p {
  color: #272c31;
  margin-top: 10px;
}

@media screen and (min-width: 1020px) {
  .about-s1 .data:hover {
    transform: translateY(-10px);
  }

  .about-s1 .data:hover:before {
    opacity: .5;
  }

  .about-s1 .data:hover .num {
    color: #4b8737;
    text-shadow: 0 10px 10px rgba(75, 135, 55, 0.3);
  }
}

.about-s1 .comm-line-btn {
  margin: 0 auto;
}

.about-s1.company {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: 100% auto;
  background-image: url(../images/about/ov5Veq.jpg);
}

/* 服务优势部分样式 */
.service-advantages {
  padding: 6.25vw;
  background-color: #fff;
}

.service-advantages-container {
  position: relative;
  max-width: 1400px;
  margin: 4rem auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.advantage-card {
  background-color: #f5f5f5;
  border-radius: 12px;
  padding: 3rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
  margin-bottom: 1.5rem;
  color: #333;
  display: flex;
  align-items: center;
  justify-content: center;
}

.advantage-icon .iconfont {
  font-size: 64px;
  color: #333;
}

.advantage-text {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.advantage-text-cn {
  font-size: 24px;
  font-weight: 600;
  color: #333;
  line-height: 1.2;
}

.advantage-text-en {
  font-size: 14px;
  color: #333;
  line-height: 1.2;
  font-weight: 400;
}

.advantage-desc {
  color: #333;
  line-height: 1.8;
  text-align: center;
  max-width: 100%;
}

/* Tab 切换样式 - 极简风格 */
.tab-container {
  max-width: 1200px;
  margin: 3rem auto 0;
}

.tab-buttons {
  display: flex;
  justify-content: center;
  gap: 0;
  border-bottom: 1px solid #e0e0e0;
  margin-bottom: 2rem;
}

.tab-btn {
  background-color: transparent;
  border: none;
  padding: 1rem 2.5rem;
  font-size: 16px;
  color: #666;
  cursor: pointer;
  position: relative;
  transition: color 0.3s;
  border-bottom: 2px solid transparent;
}

.tab-btn:hover {
  color: #333;
}

.tab-btn.active {
  color: #333;
  font-weight: 600;
  border-bottom-color: #333;
}

.tab-content-wrapper {
  position: relative;
  min-height: 150px;
}

.tab-content {
  display: none;
  opacity: 0;
}

.tab-content.active {
  display: block;
  opacity: 1;
}

.tab-content .para {
  text-align: center;
  line-height: 2;
  color: #333;
  font-size: 16px;
}