.hderBanner {
  width: 100%;
  height: 40rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-size: 100% 100%;
  background-repeat: no-repeat;
}
.hderBanner span:first-child {
  color: white;
  font-size: 5rem;
}
.hderBanner span:last-child {
  display: block;
  color: white;
  width: 61rem;
  font-size: 2rem;
  text-align: center;
}
.mdBanner {
  width: 120rem;
  height: 41.9rem;
  margin-top: 15rem;
  margin-bottom: 8rem;
  display: flex;
}
.mdBannerLeft {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin-right: 80px;
  margin-bottom:25px;
}
.mdBannerLeftTitle {
  line-height: 7.4rem;
  margin-bottom: 3.2rem;
  font-size: 3.4rem;
  font-weight: 600;
  position: relative;
}

.mdBannerLeftTitle::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 5rem;
  height: 2px;
  background-color: #d60110;
}

.mdBannerLeftText {
  font-size: 1.5rem;
  font-weight: 300;
}

.mdBannerRight {
  flex: 1;
}
.mdBannerRight img {
  width: 100%;
}
.introduce {
  width: 800px;
  text-align: center;
  margin-top: 5.5rem;
  margin-bottom: 6.5rem;
}

.introduceTitle {
  line-height: 8rem;
  font-size: 3.2rem;
  font-weight: 600;
  margin-bottom: 2rem;
  position: relative;
}

.introduceTitle::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 5rem;
  height: 2px;
  background-color: #d60110;
}

.introduceTarget {
  font-size: 1.6rem;
  font-weight: 300;
}

.introduceBottom {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  text-align: center;
}
.introduceContent {
  width: 50%;
  margin-top: 3.2rem;
}
.introduceMainNum {
  font-size: 4.6rem;
  line-height: 8rem;
  position: relative;
}

.introduceMainNum::after {
  position: absolute;
  content: '+';
  right: 126px;
  top: -12px;
  font-size: 3rem;
}
.introduceMainTitle {
  font-weight: 200;
  font-size: 2rem;
  width: 70%;
  margin: 0 auto;
}

.aboutImgCard {
  display: flex;
  width: 1200px;
  margin: 0 auto;
}

.aboutCardLeft,
.aboutCardRight {
  flex: 1;
  position: relative;
}

.aboutCardLeft {
  margin-right: 20px;
}
.aboutCardLeft img {
  width: 100%;
  height: 40rem;
}
.aboutCardLeftTitle {
  position: absolute;
  padding: 0 2.8rem;
  bottom: 0;
  left: 0;
}
.aboutCardLeftTitle1 {
  font-size: 2.4rem;
  color: #fff;
  line-height: 5.4rem;
}
.aboutCardLeftText {
  font-size: 1.4rem;
  color: #fff;
  margin-bottom: 1.8rem;
}

.aboutCardRight {
  display: flex;
  flex-direction: column;
}
.aboutCardRightTop {
  flex: 1;
  margin-bottom: 20px;
  display: flex;
}

.aboutCardRightTop1 {
  flex: 1;
  position: relative;
}

.aboutCardRightTop1 img {
  width: 100%;
  height: 100%;
}

.aboutCardRightTop1:first-child {
  margin-right: 20px;
}

.aboutCardRightBottom {
  flex: 1;
  position: relative;
}

.aboutCardRightTitle {
  position: absolute;
  line-height: 6rem;
  padding-left: 2.5rem;
  bottom: 0;
  left: 0;
  color: #fff;
  font-size: 2.4rem;
}

.aboutCardRight .aboutCardRightBottom img {
  width: 100%;
  height: 190px;
}

.aboutIndexImgList {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
}

.aboutIndexListCard {
  width: calc(25% - 24px);
  margin-right: 32px;
  margin-bottom: 32px;
  border: 1px solid #e5e5e5;
  border-radius: 4px;
  text-align: center;
  padding: 3.4rem 0 4rem;
}
.aboutIndexListCard img {
  height: 23rem;
}
.aboutIndexListTitle {
  line-height: 4.6rem;
  margin-top: 2.7rem;
  font-size: 2.4rem;
  position: relative;
}

.aboutIndexListTitle::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 3.2rem;
  height: 1px;
  background-color: #000;
}

.aboutIndexListCard:nth-child(4n) {
  margin-right: 0;
}

.patentMargin {
  margin-top: 7.7rem;
  margin-bottom: 4.8rem;
}

.factoryMargin {
  margin-top: 4.2rem;
  margin-bottom: 4rem;
}

.swiperYearList {
  height: 64rem;
  width: 100%;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  position: relative;
}

.swiperYearListTitle {
  text-align: center;
  position: absolute;
  height: 14rem;
  font-size: 3.2rem;
  line-height: 14rem;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  font-weight: 600;
}

.swiperYearList::after {
  position: absolute;
  content: '';
  top: 11.2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 5rem;
  height: 2px;
  background-color: #d60110;
}

.supportDefault {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  height: 100%;
}
.defaultTitle {
  width: 12rem;
  text-align: end;
  border-right: 1px solid #dcdcdc;
  padding-top: 14rem;
}
.defaultContent {
  flex: 1;
}

.pagination {
  flex-direction: column;
}

.page-link {
  font-size: 2rem;
  border: none;
  background-color: transparent;
  color: #a1a1a1;
  margin: 0.4rem 0;
  padding-right: 3rem;
  line-height: 3.5rem;
  font-weight: 200;
}

.page-item.active .page-link {
  color: #d60110;
  font-size: 2.4rem;
  background-color: transparent;
  position: relative;
}

.page-item.active .page-link::after {
  position: absolute;
  content: '';
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  height: 3.5rem;
  width: 2px;
  background-color: #d60110;
}

.page-link:hover {
  color: #a1a1a1;
  background-color: transparent;
}

.page-link:focus {
  box-shadow: none;
}

.defaultContent .tab-pane .swiperYearListLeftCard {
  display: flex;
  padding-top: 14rem;
}

.bigYear {
  width: 20rem;
  font-size: 5.8rem;
  font-weight: 600;
  color: #686868;
}
.swiperYearContent {
  flex: 1;
  font-size: 2rem;
  font-weight: 200;
}
.supportDefault .defaultContent .fade {
  display: none;
}
.supportDefault .defaultContent .active {
  display: block;
}

.Section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

@media all and (min-width: 769px) and (max-width: 1280px) {
  .mdBanner {
    width: 720px;
    height: auto;
  }
  .mdBannerLeftText {
    
    display: -moz-box; /* 使用旧版 Gecko 内核的浏览器（如 Firefox） */
    display: box; /* 使用新版 Flexbox 内核的浏览器 */
    -webkit-line-clamp: 4; /* 设置显示的最大行数 */
    -webkit-box-orient: vertical; /* 设置垂直排列 */
    overflow: hidden; /* 当文本超出容器时进行隐藏 */
    text-overflow: ellipsis; /* 超出部分显示省略号 */
    white-space: normal; /* 允许换行 */
  }
  .introduce {
    width: 720px;
  }
  .supportDefault {
    width: 720px;
  }
  .aboutImgCard {
    width: 720px;
  }
  .aboutCardRight .aboutCardRightBottom img {
    height: 150px;
  }

  .aboutIndexImgList {
    width: 720px;
  }

  .mdBannerLeft {
  margin-right: 10px;
}
}

@media all and (max-width: 768px) {
  .mdBannerLeftText {
   word-break:break-all ;
  }

    .mdBannerLeft {
  margin-right: 0;
}

  .mdBanner {
    width: 100%;
    padding: 0 10px;
    height: auto;
    flex-direction: column;
    margin-top:20px;
    margin-bottom:20px
  }

  .introduce {
    width: 100%;
    padding: 0 10px;
  }

  .supportDefault {
    width: 100%;
    padding: 0 10px;
  }
  .swiperYearListTitle {
    width: 100%;
  }
  .swiperYearContent {
    display: -webkit-box; /* 使用旧版 WebKit 内核的浏览器（如 Safari） */
    display: -moz-box; /* 使用旧版 Gecko 内核的浏览器（如 Firefox） */
    display: box; /* 使用新版 Flexbox 内核的浏览器 */
    -webkit-line-clamp: 14; /* 设置显示的最大行数 */
    -webkit-box-orient: vertical; /* 设置垂直排列 */
    overflow: hidden; /* 当文本超出容器时进行隐藏 */
    text-overflow: ellipsis; /* 超出部分显示省略号 */
    white-space: normal; /* 允许换行 */
  }

  .aboutImgCard {
    width: 100%;
    flex-direction: column;
  }
  .aboutCardLeft {
    margin-right: 0;
  }

  .aboutCardRightTop {
    margin-bottom: 0;
  }

  .aboutCardRightTop1:first-child {
    margin-right: 0;
  }
  .aboutCardRight .aboutCardRightBottom img {
    height: 110px;
  }

  .aboutIndexImgList {
    width: 100%;
    padding: 0 10px;
  }

  .aboutIndexListCard {
    width: calc(50% - 5px);
    margin-right: 0;
    margin-bottom: 10px;
  }

  .aboutIndexListCard:nth-child(odd) {
    margin-right: 10px;
  }

  .introduceMainNum::after {
    right: 28%;
  }
}