* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.main {
  width: 100%;
  height: auto;
}

/* banner */
.banner {
  padding-top: 10.375rem;
  padding-left: 16.25rem;
  width: 100%;
  height: 44.625rem;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
}

.banner .title {
  font-size: 4.5rem;
  text-align: right;
  letter-spacing: 0.625rem;
  color: #3b3b3b;
}

.banner .list {
  font-size: 1.5rem;
  display: flex;
  margin-top: 1.4rem;
  flex-direction: column;
  color: #666;
}

.banner .list .demo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  margin-bottom: 0.8rem;
}

.banner .list .demo img {
  width: 1.375rem;
  height: 1.375rem;
}

.banner .list .demo span {
  margin-left: 1.25rem;
}

/* 面包屑 */
.breadcrumb {
  width: 100%;
  height: 2.625rem;
  border-bottom: 1px solid #ececec;
}

.breadcrumb .title {
  margin: 0 auto;
  width: 87.5rem;
  height: 2.625rem;
  text-align: left;
  color: #1683e8;

  display: flex;
  align-items: center;
  font-size: 0.875rem;
}

.breadcrumb span {
  color: #717171;
  cursor: pointer;
}

/* 产品架构 */
.item {
  padding: 5rem 0 2.5rem;
  display: flex;
  flex-direction: column;
}

.item .title {
  text-align: center;
  font-size: 2.25rem;
  color: #262626;
  margin-bottom: 3.75rem;
  letter-spacing: 0.188rem;
}

.item .content {
  width: 87.5rem;
  margin: 0 auto;
  display: flex;
}

.architecture img {
  width: 100%;
  margin-bottom: 1.875rem;
}

/* 算法识别 */
.identify {
  background-color: #f4f8ff;
}

.identify .content {
  flex-wrap: wrap;
}

.identify .list img {
  width: 100%;
}

.item .list {
  width: 20.938rem;
  height: 24.125rem;
  margin-right: 1.25rem;
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
}

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

.item .list .text {
  height: 4.375rem;
  background-color: #d4e6fb;
  font-size: 1.25rem;
  color: #4a4a4a;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 方案优势 */
.advantage .content {
  justify-content: space-between;
  flex-wrap: nowrap;
}

.advantage .list {
  height: 19.75rem;
  width: 28.75rem;
  position: relative;
}

.advantage .list .icon {
  width: 7.25rem;
  margin: 0 auto;
  position: absolute;
  z-index: 10;
  top: 0;
  left: 50%;
  transform: translate(-50%);
}

.advantage .list .bottom {
  height: 15.25rem;
  width: 100%;
  margin: 0 auto;
  position: relative;
  top: 4.5rem;
  background-color: #f2f6fd;
  border-radius: 0.5rem;
  padding-top: 4.5rem;
}

.advantage .list .bottom h4 {
  font-weight: 500;
  text-align: center;
  color: #1877ff;
  font-size: 1.25rem;
  margin-bottom: 1.625rem;
}

.advantage .list .bottom p {
  width: 23.375rem;
  margin: 0 auto;
  color: #575757;
  font-size: 1rem;
  line-height: 1.7;
  letter-spacing: 0.25rem;
}

/* 硬件产品 */
.product .list {
  width: 87.5rem;
  height: 28.313rem;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  margin: 0 auto;
}

.product .pro_list {
  background-color: #f4f8ff;
  width: 43.125rem;
  height: 100%;
  border-radius: 0.25rem;
  padding: 1.875rem 0 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #262626;
  font-size: 1.5rem;
  justify-content: space-between;
}

.pro_list img {
  height: 80%;
}

@media screen and (max-width: 1400px) {
  .banner {
    padding-top: 5.375rem;
    padding-left: 7.25rem;
  }

  .breadcrumb {
    width: 100%;
    padding: 0 1.25rem;
  }

  .breadcrumb .title {
    width: 100%;
  }

  .item {
    padding: 5rem 1.25rem 2.5rem;
  }

  .item .content {
    width: 100%;
    height: auto;
    justify-content: center;
  }

  .content .image img {
    height: 100%;
    width: auto;
  }

  .item .list:nth-child(4n) {
    margin-right: 1.25rem;
  }

  .advantage .content {
    flex-wrap: wrap;
  }

  .advantage .list .bottom {
    padding: 4.375rem 1.25rem 0;
  }

  .product .list {
    width: 100%;
    height: auto;
  }

  .product .left {
    width: 60%;
  }

  .product .pro_list {
    width: 49%;
  }

  .pro_list p {
    margin-top: 1.25rem;
  }

  .product .left img {
    width: 25rem;
  }

  .pro_list .bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .pro_list .more {
    margin: 20px 0;
  }
}

@media screen and (max-width: 767px) {
  body {
    font-size: 0.5rem;
  }

  .item {
    padding: 1.25rem;
  }

  .banner {
    padding-top: 2.188rem;
    padding-left: 2.188rem;
    height: 17.688rem;
  }

  .banner .title {
    font-size: 2.25rem;
  }

  .banner .list {
    flex-direction: column;
    margin-top: 0.625rem;
    color: #262626;
  }

  .banner .list .demo {
    font-size: 1.125rem;
    margin-bottom: 0.625rem;
  }
  .banner .list .demo img {
    width: 0.75rem;
    height: 0.75rem;
  }

  .banner .list .demo span {
    font-size: 0.75rem;
  }

  .breadcrumb {
    width: 100%;
    display: flex;
    align-items: center;
  }

  .breadcrumb .title {
    width: 100%;
  }

  .item {
    padding: 1.25rem;
  }

  .item .title {
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
  }

  .item .list {
    width: 32%;
    margin-right: 0;
  }

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

  .item .list .text {
    font-size: 0.75rem;
    text-align: center;
    padding: 0.625rem 0.313rem;
    height: 3.625rem;
  }

  .item .content {
    width: 100%;
    height: auto;
    /* flex-direction: column; */
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
  }

  .content .image {
    width: 100%;
  }

  .content .image img {
    width: 100%;
  }

  .item .content .right {
    padding: 2.5rem;
    width: 100%;
    font-size: 1.75rem;
  }

  .item .videos {
    width: 100%;
    padding: 0 2.5rem;
  }

  .identify .list {
    height: auto;
  }

  .advantage .list {
    width: 100%;
    height: auto;
    margin-right: 0;
    margin-bottom: 3.125rem;
    text-align: center;
  }

  .advantage .list:nth-last-child(1) {
    margin-bottom: 0;
  }

  .advantage .list .bottom p {
    width: 100%;
    font-size: 0.75rem;
  }

  .advantage .list .bottom {
    padding: 2.5rem 1.25rem 1.25rem;
    height: auto;
    top: 2.5rem;
  }

  .advantage .list .bottom h4 {
    font-size: 0.875rem;
    margin-bottom: 0.625rem;
  }
  .advantage .list .icon {
    width: 3.625rem;
    height: 4.313rem;
  }

  /* 产品 */
  .product .list {
    /* flex-direction: column; */
    /* height: auto; */
    width: 100%;
    margin: 0;
  }

  .product .pro_list {
    width: 49%;
    /* height: 25rem; */
    margin-bottom: 1.25rem;
    padding: 20px;
  }

  .product .pro_list p {
    height: 2.5rem;
    font-size: 0.875rem;
    text-align: center;
  }

  .pro_list img {
    width: 50%;
    height: auto;
  }
}

@media screen and (max-width: 300px) {
  body {
    font-size: 0.5rem;
  }

  .identify .list {
    width: 48%;
  }

  .product .list {
    flex-direction: column;
  }

  .product .pro_list {
    width: 100%;
  }
}