.about-introduction .about-title {
  text-align: center;
  font-size: 0.34rem;
  color: #1b3b98;
  padding: 0.34rem 0 0.18rem 0;
  position: relative;
  font-weight: bold;
  margin-bottom: 0.18rem;
}

.about-introduction .about-title::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 1.25rem;
  height: 0.03rem;
  background-color: #fd9f08;
}

.about-introduction .about-subtitle {
  text-align: center;
  font-size: 0.2rem;
  color: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.1rem;
  margin-bottom: 0.42rem;
}

.about-introduction .about-subtitle .dot {
  border-radius: 50%;
  width: 0.04rem;
  height: 0.04rem;
  background-color: #000;
}

.about-introduction .about-img {
  height: 4.8rem;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 0.42rem;
}

.about-introduction .about-img img {
  height: 100%;
  object-fit: cover;
}

.about-introduction .about-introduction-title,
.about-introduction .about-vision-title {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.26rem;
  color: #1b3b98;
  position: relative;
  padding-bottom: 0.06rem;
}

.about-introduction .about-introduction-title::after,
.about-introduction .about-vision-title::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0px;
  width: 0.7rem;
  height: 0.03rem;
  background-color: #fd9f08;
}

.about-introduction svg {
  margin-right: 0.08rem;
  font-size: 0.24rem;
}

/* 联系我们部分 */
.contact-item {
  padding: 0.3rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 0.18rem;
  color: #000;
}

.contact-item-img {
  font-size: 0.42rem;
  border: 1px solid #666;
  width: 1.1rem;
  height: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-item-title {
  font-size: 0.2rem;
  color: #1d45cf;
  margin: 0.1rem 0 0.2rem;
  text-align: center;
}

.contact-item .line {
  width: 1.1rem;
  height: 0.02rem;
  margin-bottom: 0.24rem;
  background-color: #e3e2e0;
  position: relative;
}


.contact-item .line::after {
  content: "";
  width: 0.32rem;
  height: 0.04rem;
  background-color: #fd9f08;
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.contact-item-content {
  text-align: center;
}

/* 资质证书部分 */

.cert-list {
  padding-top: 50px;
  padding-bottom: 50px;
}

.cert-list .col {
  max-width: 20%;
  padding-left: 0;
  padding-right: 0.32rem;
  margin-top: 0;
  margin-bottom: 0.32rem;
}

.cert-list .col:nth-child(5n) {
  padding-right: 0;
}

.cert-item {
  position: relative;
  overflow: hidden;
  cursor: zoom-in;
  box-shadow: 0 3px 12px 0 rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}

.cert-item-mask {
  height: 2.56rem;
  width: 100%;
  background-color: rgba(27, 59, 152, 0.5);
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  opacity: 0;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  font-size: 0.24rem;
  color: #fff;
}

.cert-item-mask p {
  margin-top: 0.1rem;
  font-size: 0.16rem;
}

.cert-item:hover .cert-item-mask {
  opacity: 1;
}

.cert-item-img {
  height: 2.56rem;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cert-item:nth-child(5n) {
  margin-right: 0;
}

.cert-item-title {
  text-align: center;
  padding: 0.16rem 0.18rem;
  font-size: 0.18rem;
  background-color: rgb(239, 240, 242);
  color: #333;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  transition: all 0.4s;
}

.cert-item:hover .cert-item-title {
  font-weight: bold;
  color: #fff;
  background-color: #1b3b98;
}

/* 为viewer.js隐藏的图片容器 */
.hidden-gallery {
  display: none;
}

/* 加载状态样式 */
.cert-item.loading {
  opacity: 0.7;
  pointer-events: none;
}

.cert-item.loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.2rem;
  height: 0.2rem;
  margin: -0.1rem 0 0 -0.1rem;
  border: 2px solid #f3f3f3;
  border-top: 2px solid #3498db;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@media (max-width: 1400px) {
  .cert-list .col {
    max-width: 25%;
    padding-left: 0;
    padding-right: 16px !important;
    margin-bottom: 20px;
  }

  .cert-list .col:nth-child(4n) {
    padding-right: 0;
  }
}

@media (max-width: 1200px) {
  .cert-list .col {
    flex: 0 0 33.33333333333333%;
    max-width: 33.33333333333333%;
    padding-left: 0;
    padding-right: 16px !important;
    margin-bottom: 20px;
  }

  .cert-list .col:nth-child(3n) {
    padding-right: 0;
  }
}

@media (max-width: 992px) {
  .cert-list {
    padding-left: 20px;
    padding-right: 20px;
  }

  .cert-list .col {
    flex: 0 0 50%;
    width: 50%;
    max-width: 50%;
    padding-left: 0;
    padding-right: 10px !important;
    margin-bottom: 10px;
  }

  .cert-item-img,
  .cert-item-mask {
    height: 190px;
  }

  .cert-item-title {
    padding: 10px 12px;
    font-size: 16px;
  }

  .cert-list .col:nth-child(2n) {
    padding-right: 0;
  }
}