.nav.annotation-type {
  display: flex;
  border: 1px solid #d9d9d9;
}

.nav.annotation-type .nav-item {
  flex-grow: 1;
  text-align: center;
  border-right: 1px solid #d9d9d9;
  margin-right: 0;
  color: #000;
  padding: 0.6rem 0;
  cursor: pointer;
}

.nav.annotation-type .nav-item:last-of-type {
  border-right: 0;
}

.nav.annotation-type .nav-item.active {
  background-color: var(--bs-primary);
  font-weight: 500;
  color: #fff;
}
.nav.annotation-type .nav-link:hover {
  color: var(--bs-primary);
}
.nav.annotation-type .nav-item.active .nav-link {
  color: #fff;
}

.nav.annotation-type .nav-link {
  color: #000;
  height: 100%;
  width: 100%;
}

.annotation-type-content .text-box {
  height: 100%;
  border: 1px solid #d9d9d9;
  padding: 1.5rem;
}

.annotation-type-content .text-box h3 {
  font-size: 20px;
  font-weight: 900;
  line-height: 1.5em;
}

.annotation-type-content .text-box p {
  line-height: 2em;
  font-size: 16px;
  font-weight: 900;
}

.module-item.operate-mode {
  min-height: 980px;
  padding: 2rem 0;
  box-sizing: border-box;
  position: relative;
}

.module-item h4 {
  font-size: 20px;
  font-weight: 900;
  margin-bottom: 30px;
}
.largeModel_banner {
  width: 700px;
}
.module-item p {
  font-size: 16px;
  line-height: 2em;
  width: 30em;
  margin-bottom: 60px;
  text-align: justify;
}
.module-item .text-desc {
  font-size: 15px;
  font-weight: 900;
  line-height: 2em;
}

.module-item.operate-mode {
  min-height: 980px;
  padding: 2rem 0;
  box-sizing: border-box;
}

.module-item.operate-mode::before {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("../img/index_operateMode.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  /* 背景图片覆盖整个元素 */
  background-color: rgba(255, 255, 255, 0.5);
  /* 设置背景颜色的透明度 */
  opacity: 0.5;
  z-index: -1;
  /* 确保背景在文本下方 */
}

.operate-mode-content {
  background-image: url("../img/index_operateMode2.png");
  background-repeat: no-repeat;
  background-position: center;
  min-height: 700px;
  width: 100%;
  margin: 0 auto;
}

.operate-mode-content .text_container {
  display: flex;
  justify-content: space-evenly;
}

.operate-mode-content .text_container .title_col {
  width: 50%;
  height: 100%;
  position: relative;
  font-size: 24px;
  font-weight: 900;
  box-sizing: border-box;
  color: #fff;
}

.operate-mode-content .text_container .title_col .firsts,
.seconds,
.thirds {
  width: 144px;
  height: 33px;
  text-align: center;
  line-height: 33px;
  position: absolute;
}

.operate-mode-content .text_container .title_col .firsts {
  top: 275px;
  right: 145px;
}

.operate-mode-content .text_container .title_col .seconds {
  top: 430px;
  right: 145px;
}

.operate-mode-content .text_container .title_col .thirds {
  top: 550px;
  right: 145px;
}

.operate-mode-content .text_container .content_col {
  width: 50%;
  height: 100%;
  position: relative;
  font-size: 16px;
  box-sizing: border-box;
}

.operate-mode-content .text_container .content_col .first,
.second,
.third {
  width: 350px;
  height: 75px;
  text-align: left;
  line-height: 37.5px;
  position: absolute;
}

.operate-mode-content .text_container .content_col .first {
  top: 240px;
  left: 180px;
}

.operate-mode-content .text_container .content_col .second {
  top: 375px;
  left: 180px;
}

.operate-mode-content .text_container .content_col .third {
  top: 510px;
  left: 180px;
}

.module-item.advantage {
  background-image: url("../img/service_advantage.png");
  background-repeat: no-repeat;
  background-position: center;
  padding: 2rem;
  margin: 4rem auto;
}

.module-item.custom-service {
  margin-top: 100px;
  margin-bottom: 100px;
  padding: 4rem 4rem;
  background-image: url("../img/product-LargeModelDev_b3.png");
  background-repeat: no-repeat;
  background-position: center;
}

.custom-service input {
  margin-right: 0.8rem;
  height: 60px;
  width: 30%;
  border-radius: 0;
}
.custom-service .btn {
  width: 150px;
  height: 60px;
  padding: 0;
  line-height: 60px;
  box-sizing: border-box;
}
.common-flow-item .steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
}

.common-flow-item .steps .circle {
  width: 100px;
  height: 156px;
  border-radius: 50%;
  text-align: center;
  line-height: 156px;
  font-size: 28px;
  font-weight: 900;
  color: #000;
  border: none;
}
.common-flow-item .steps .circle img {
  width: 100%;
}
.common-flow-item .steps .arrows {
  width: 110px;
  height: 156px;
  text-align: center;
  line-height: 156px;
  font-size: 28px;
  font-weight: 900;
  color: rgb(165, 193, 249);
}
.common-flow-item .title {
  font-size: 20px;
  font-weight: 900;
}
.common-flow-item .text {
  font-size: 15px;
  width: 15em;
}
.modelUse img {
  width: 990px;
  height: 820px;
}

.modelUse .right_nav {
  width: 300px;
  height: 820px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-end;
}

.modelUse .right_nav .scene-btn {
  width: 275px;
  height: 108px;
  line-height: 108px;
  padding: 0;
  font-size: 25px;
  font-weight: 900;
  text-align: center;
  position: relative;
}

.modelUse .right_nav .scene-btn::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border: 15px solid transparent;
  border-right-color: #3775f2;
  border-right-width: 30px;
  position: absolute;
  left: -45px;
  top: 50%;
  transform: translate(0, -50%);
  display: none;
}

.modelUse .right_nav .scene-btn.active {
  background-color: #3775f2;
  color: #fff;
}

.modelUse .right_nav .scene-btn.active::before {
  content: "";
  display: inline-block;
}

.service-list {
  font-weight: 900;
}

.service-list .text_title {
  font-size: 25px !important;
}

.service-list .text_desc {
  font-size: 16px !important;
  font-weight: 500;
  margin: 15px 0;
}

.service-list .text_content {
  font-size: 18px !important;
}
.service-list h4 {
  font-size: 28px;
  font-weight: 900;
}
.service-list .text-box h3 {
  font-size: 20px;
  font-weight: 900;
  line-height: 3em;
}
.service-list .text-box h3 img {
  margin-right: 24px;
}
.service-list .text-box p {
  font-size: 16px;
  font-weight: 900;
  padding-left: 48px;
  box-sizing: border-box;
  line-height: 2em;
  margin-bottom: 0;
}
.service-list .col-5 {
  margin-left: 30px;
}
.fs-3.mt-3.mb-5 {
  font-size: 25px !important;
  font-weight: 900;
}

.lh-lg.fs-5 {
  font-size: 16px !important;
  font-weight: 500;
  line-height: 2.5em !important;
  text-align: justify;
}

.safe_item_title {
  font-size: 20px !important;
  font-weight: 900;
  margin-top: 20px;
}

.safe_item_desc {
  font-size: 16px !important;
  padding: 20px;
  line-height: 3em;
  width: 25em;
}