.i-banner {
  display: block;
  height: 280px;
  padding-top: 128px;
}
.i-b-h5 {
  position: relative;
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #fff;
  padding-bottom: 27px;
}
.i-b-h5::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 54px;
  background-color: #fff;
}
.i-tabs {
  padding: 30px;
}
.i-tab {
  margin-right: 36px;
  padding: 0 1em;
  min-width: 130px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  border-radius: 5px;
  background-color: #fff;
  border: 1px solid #a6a6a6;
  color: #a6a6a6;
  font-size: 16px;
}
.i-tab.current {
  border: none;
  background-color: var(--primary);
  color: #fff;
}
/* 关于我们 */
.d-h4 {
  position: relative;
  font-size: 30px;
  font-weight: 700;
  text-align: center;
  padding-bottom: 15px;
  margin-bottom: 40px;
}
.d-h4::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  height: 2px;
  width: 27px;
  background-color: var(--primary);
}

.aside {
  width: 336px;
}
.re-h5 {
  position: relative;
  padding: 0 15px;
  margin: 30px 0;
}
.re-h5::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 20px;
  background-color: var(--primary);
}
.re-list {
  display: grid;
  grid-template-columns: repeat(4, auto);
  justify-content: space-between;
  row-gap: 10px;
}

.re-item {
  position: relative;
  width: 309px;
  height: 225px;
}
.re-n-item {
  margin-bottom: 23px;
}
.re-n-img {
  overflow: hidden;
  width: 150px;
  height: 89px;
  margin-right: 12px;
}

/* 关于 新闻列表 | 详情*/
.n-list {
  display: grid;
  grid-template-columns: repeat(3, 420px);
  gap: 12px 20px;
}
.n-img {
  overflow: hidden;
  width: 100%;
  height: 250px;
}
.n-text {
  margin: 12px 0;
  line-height: 24px;
  color: #777;
  -webkit-line-clamp: 4;
}

.article {
  width: 924px;
}
.d-banner-wrap {
  margin-top: 30px;
  width: 924px;
  height: 478px;
  background-color: rgba(246, 247, 250, 1);
}
.swiper-button-next, .swiper-button-prev {
  color: #c4c4c4;
}
.swiper-button-next::after, .swiper-button-prev::after {
  font-size: 36px;
}

.d-section {
  position: relative;
  padding: 20px 0;
}
.d-other p {
  padding: 4px 0;
  color: #555;
}
.d-text {
  font-size: 15px;
  line-height: 2;
  color: #444;
}
.d-h5 {
  font-size: 24px;
  font-weight: 700;
  color: #333;
}
.d-graph {
  margin-top: 32px;
  text-align: center;
}
.d-graph p {
  text-indent: 2em;
  font-size: 15px;
  line-height: 2;
  color: #444;
  text-align-last: left;
}
.d-graph img {
  margin-top: 24px;
  width: 925px;
}

/* 产品详情 | 解决方案 */
.o-list {
  row-gap: 4px;
}
.o-item {
  color: #555;
}
.o-title {
  height: 50px;
  line-height: 50px;
  text-align: center;
  font-size: 16px;
}
.opt1 .com-tag:hover {
  color: rgba(255, 255, 255, 0.8);
}
.opt1-img {
  width: 640px;
  height: 250px;
  margin-right: 60px;
}
.opt1 .d-h4 {
  text-align: left;
  font-size: 26px;
  margin-bottom: 16px;
}
.opt1 .d-h4::after {
  left: 0;
  transform: translateX(0);
}
.opt1-tabs {
    z-index: 998;
    top: -1px;
    position: sticky;
    background-color: #FFF;
}
.opt1-tab {
  margin-right: 75px;
  height: 60px;
  padding-bottom: 30px;
  font-size: 18px;
  color: #222;
}
.opt1-tab.current {
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
}
.o-zh {
  margin-bottom: 32px;
}
.o-en {
  text-transform: uppercase;
}
.opt4-list {
  display: grid;
  grid-template-columns: repeat(4, 315px);
  justify-content: space-between;
  row-gap: 12px;
}
.opt4-item {
  overflow: hidden;
  height: 360px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 1);
}
.opt4-item:hover {
  box-shadow: 0px 2px 10px 1px rgba(181, 150, 58, 0.1);
}
.opt4-img {
  overflow: hidden;
  width: 100%;
  height: 200px;
}
.opt5-banner-wrap .swiper-button-next::after, .opt5-banner-wrap .swiper-button-prev::after {
  font-size: 24px;
}

.pro1-img {
  overflow: hidden;
  width: 638px;
  height: 350px;
  background-color: rgba(246, 247, 250, 1);
}
.pro1-thumn {
  overflow: hidden;
  width: 88px;
  height: 60px;
  background: rgba(246, 247, 250, 1);
}
.pro1-thumn.swiper-slide-thumb-active {
  border: 0.75px solid rgba(181, 150, 58, 1);
}
.pro1-ctx {
  height: 280px;
  margin: 36px 0;
  border-top: 1px dashed #a6a6a6;
  border-bottom: 1px dashed #a6a6a6;
}

/* 应用场景 */
.u-list {
  padding: 32px 0;
  display: grid;
  grid-template-columns: repeat(3, 416px);
  justify-content: space-between;
  row-gap: 4px;
}
.u-img {
  width: 100%;
  height: 200px;
}
.u-re-item {
  width: 100%;
  height: 228px;
  margin-bottom: 10px;
}
.u-re-item .pro-text {
  height: 36px;
  line-height: 36px;
}
/* 经典案例 */
.c-list {
  display: grid;
  grid-template-columns: repeat(4, 313px);
  justify-content: space-between;
  row-gap: 30px;
}
.c-img {
  overflow: hidden;
  width: 100%;
  height: 479px;
}
.c-title {
  left: 0;
  right: 0;
  bottom: 0;
  position: absolute;
  height: 46px;
  line-height: 46px;
  text-align: center;
  font-size: 16px;
  color: #fff;
  background-color: rgba(56, 56, 56, 0.4);
  backdrop-filter: blur(5px);
}