body {
  margin: 0;
  height: 100vh;
}
#app {
  height: 100vh;
}
.home {
  width: 100%;
  height: 100%;
  position: relative;
  overflow-y: scroll;
}
/* ------------------------ */
.main {
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
  margin-top: 85px;
}
.title {
  font-size: 2.5rem /* 40/16 */;
  padding: 15px 0;
  font-weight: 600;
  margin-top: 20px;
  color: rgba(0, 0, 0, 0.85);
  text-align: center;
  border-radius: 6px;
  font-family: Open Sans, PingFang SC, Microsoft YaHei, Helvetica Neue,
    Hiragino Sans GB, WenQuanYi Micro Hei, Arial, "sans-serif";
}
.title-detail {
  font-size: 16px;
  color: rgba(0, 0, 0, 0.65);
  text-align: center;
  border-radius: 6px;
  margin-bottom: 35px;
  font-family: Open Sans, PingFang SC, Microsoft YaHei, Helvetica Neue,
    Hiragino Sans GB, WenQuanYi Micro Hei, Arial, "sans-serif";
}
.swiper {
  margin-bottom: 30px;
}

.section {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  padding: 0;
}
.section-item {
  display: flex;
  justify-content: space-between;
  padding: 30px 40px;
  flex-wrap: wrap;
  background-color: rgba(0, 0, 0, 0.02);
  margin-bottom: 30px;
  box-shadow: 0 0 5px 3px #e5e5e5;
  width: 100%;
  box-sizing: border-box;
  font-family: Open Sans, PingFang SC, Microsoft YaHei, Helvetica Neue,
    Hiragino Sans GB, WenQuanYi Micro Hei, Arial, "sans-serif";
  overflow: hidden;
}
.se-i-left {
  width: 50%;
  text-align: center;
  padding: 0 1.25rem /* 20/16 */;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  overflow: auto;
}
h1 {
  font-size: 1.75rem /* 28/16 */;
  font-weight: 700;
  margin: 0;
  padding-bottom: 30px;
}
.se-l-detail {
  font-size: 16px;
  line-height: 2.125rem /* 34/16 */;
  color: rgba(0, 0, 0, 0.65);
}

.btn-div {
  display: inline-block;
  width: 14px;
  height: 14px;
  background-color: #fff;
  border-radius: 50%;
  margin-left: 10px;
}
.btn-div i {
  color: #fb2056;
  font-weight: 700;
}
.se-i-btn {
  margin-top: 40px;
}
.se-i-btn .el-button {
  background-color: #e73d5a;
  color: #fff;
  border: none;
  width: 150px;
  height: 50px;
  border-radius: 30px;
  font-family: Open Sans, PingFang SC, Microsoft YaHei, Helvetica Neue,
    Hiragino Sans GB, WenQuanYi Micro Hei, Arial, "sans-serif";
}

.se-i-right {
  width: 50%;
  height: auto;
  position: relative;
  isolation: isolate; /* 隔离混合模式影响 */
}

.se-i-right .img-describe {
  position: absolute;
  bottom: 1px;
  color: #000;
  font-family: Open Sans, PingFang SC, Microsoft YaHei, Helvetica Neue,
    Hiragino Sans GB, WenQuanYi Micro Hei, Arial, "sans-serif";
  font-weight: 600;
  color: #000;
}

.se-i-right .video-divBox {
  width: 100%;
  height: auto;
  overflow: hidden;
}
.se-i-right video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden; /* chrome 和 safari  */
  -moz-backface-visibility: hidden; /* Firefox */
  -ms-backface-visibility: hidden; /* Internet Explorer */
  mix-blend-mode: screen;
}
.se-i-right img {
  width: 100%;
}
.point {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translate(-50%);
}
ul,
li {
  list-style: none;
  margin: 0;
  padding: 0;
}
ul {
  display: flex;
  align-items: center;
}
li {
  cursor: pointer;
}
.section-item:nth-child(odd) .se-i-left {
  order: 2;
}
.section-item:nth-child(odd) .se-i-right {
  order: 1;
}
.big-img {
  padding: 0;
  margin-bottom: 0;
  aspect-ratio: 16/9;
  position: relative;
  height: calc(100vh - 64px - 67px - 50px);
  background-repeat: no-repeat;
  background-position: 50% 70%;
  background-size: 100%;
  position: relative;
}

.big-img-back {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background-color: rgb(0, 0, 0, 0.3);
}

.big-img img {
  width: 100%;
  height: 100%;
}

.big-img video {
  width: 100%;
  /* height: 100%; */
  transform: translate(0, -7%);
}

.big-img .section-item-content {
  width: 100%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-size: 65px;
  font-weight: 600;
  text-align: center;
  font-family: Open Sans, PingFang SC, Microsoft YaHei, Helvetica Neue,
    Hiragino Sans GB, WenQuanYi Micro Hei, Arial, "sans-serif";
  color: #fff;
}

.big-img .section-item-content .section-item-describe {
  font-size: 1.875rem /* 30/16 */;
  margin-top: 20px;
  font-family: Open Sans, PingFang SC, Microsoft YaHei, Helvetica Neue,
    Hiragino Sans GB, WenQuanYi Micro Hei, Arial, "sans-serif";
  color: #fff;
}

.section-robot {
  width: 100%;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.section-item-robot {
  width: calc(50% - 10px);
  position: relative;
  margin-bottom: 30px;
  background-color: #f4f3f3;
}
.section-item-robot .item {
  position: relative;
  left: 0%;
  top: 0%;
  text-align: center;
  font-family: Open Sans, PingFang SC, Microsoft YaHei, Helvetica Neue,
    Hiragino Sans GB, WenQuanYi Micro Hei, Arial, "sans-serif";
  background-color: rgb(0, 0, 0, 0.4);
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  cursor: pointer;
}

.section-item-robot:nth-child(odd) .item {
  background-color: rgb(0, 0, 0, 0.3);
}
.section-item-robot:nth-child(even) .item {
  background-color: rgb(0, 0, 0, 0.4);
  cursor: default;
}

.section-item-robot h1 {
  border: none;
  padding-bottom: 0;
  margin-bottom: 0;
  color: #fff;
  font-size: 60px;
}

.section-item-robot .item .se-i-btn {
  margin-top: 0px;
}
.section-item-robot .item .se-i-btn .el-button {
  /* border: 1px solid #e73d5a; */
  color: #e73d5a;
  font-size: 28px;
  background: transparent;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  /* line- */
  position: relative;
  font-weight: 400;
}

.section-item-robot .item .se-i-btn .el-button .span {
  position: absolute;
  right: -5px;
  top: 45%;
  transform: translate(0, -50%);
}

.section-item-robot .item .se-i-btn .el-button img {
  width: 35px;
  vertical-align: middle;
}

.btn-div {
  width: 30px;
  height: 30px;
  background-color: #e73d5a;
  /* display: flex;
  justify-content: center;
  align-items: center; */
  line-height: 20px;
  text-align: center;
  margin-left: 0;
  vertical-align: middle;
}
.btn-div i {
  color: #fff;
  font-size: 20px;
  font-weight: bold;
}

.se-i-left-config {
  padding-left: 50px;
}

.se-l-config {
  display: flex;
  align-items: center;
  width: 100%;
  font-size: 1.0625rem /* 17/16 */;
  font-weight: 400;
  line-height: 45px;
  font-family: Open Sans, PingFang SC, Microsoft YaHei, Helvetica Neue,
    Hiragino Sans GB, WenQuanYi Micro Hei, Arial, "sans-serif";
}

/* .se-i-left-con-context{

} */

.se-l-config-label {
  font-weight: 600;
  margin-right: 10px;
}
.line {
  text-align: right;
  display: flex;
  justify-content: flex-end;
  margin: 40px 0;
}
.line .line-box {
  width: 7%;
  border-top: 3px solid #fb2056;
}
.line-center {
  display: flex;
  justify-content: center;
  margin: 2rem /* 32/16 */ 0;
  width: 100%;
}
.line-center .line-box {
  width: 76px;
  border-top: 3px solid #fb2056;
}
.home-to-up {
  position: fixed;
  right: 30px;
  bottom: 30px;
  background-color: #fb2056;
  z-index: 100;
  color: #fff;
  cursor: pointer;
  width: 20px;
  height: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.home-to-up i {
  font-size: 1rem /* 16/16 */;
}

@media screen and (max-width: 1000px) {
  .section .section-item .se-i-left {
    width: 100% !important;
  }
  .section-item {
    padding: 40px 0;
  }
  .title {
    font-size: 20px;
    margin-top: 10px;
  }
  .text {
    font-size: 14px !important;
    margin: 10px 0;
  }
  .section .section-item .se-i-left h1,
  .se-l-detail {
    font-size: 14px !important;
    line-height: 30px !important;
  }
  .section .section-item .se-i-right {
    width: 100% !important;
  }
  .section .section-item .se-i-right video {
    max-width: 500px;
  }
  .line-center .line-box {
    width: 30px;
  }
}

@media screen and (max-width: 400px) {
  .home-top {
    height: auto;
  }
  .home-top img {
    width: 100%;
    height: auto;
  }
  .btn {
    padding: 15px 0;
  }
  .btn img {
    height: 30px;
    width: auto;
  }
  .line {
    margin: 10px 0;
  }
  .section .section-item .se-i-left {
    width: 100% !important;
  }
  .section-item {
    padding: 40px 0;
  }
  .title {
    font-size: 20px;
    margin-top: 10px;
  }
  .text {
    font-size: 14px !important;
    margin: 10px 0;
  }
  .section .section-item .se-i-left h1,
  .se-l-detail {
    font-size: 14px !important;
    line-height: 30px !important;
  }
  .section .section-item .se-i-right {
    width: 100% !important;
  }
  .section .section-item .se-i-right video {
    max-width: 500px;
  }
  .line-center .line-box {
    width: 30px;
  }
}