body,
html,
.row {
  margin: 0;
  padding: 0;
}
ul,
li {
  padding: 0;
  list-style: none;
}
a:link,
a:visited,
a:hover,
a:active {
  text-decoration: none;
  color: inherit;
}

.top-box {
  height: 200px;
}

.top-nav-box {
  /* background-color: antiquewhite; */
  width: 500px;
  height: calc(100% - 37px - 37px - 33px);
  margin: auto;
  font-family: "Microsoft YaHei";
  font-size: 18px;
  color: #1a1a1a;
  text-align: center;
}

.logo {
  /* background-color: aquamarine; */
  text-align: center;
  padding: 35px 0;
}

.nav-bottom-active {
  padding-bottom: 10px;
  border-bottom: 2px solid #ec8883;
}

.banner {
  width: 100%;
  height: 700px;
  background-image: url("../images/product-logo.png");
  /* background-size:cover; */
  background-position-x: center;
  background-repeat: no-repeat;
  position: relative;
  overflow: hidden;
}

.product-tit{
  /* background-color: #e72c21; */
  font-size: 60px;
  font-weight: bold;
  color: #1a1a1a;
  margin-top: 215px;
  margin-left: 440px;
}

/* 按钮 */
.banner-list-box {
  width: 1300px;
  /* height: 160px; */
  /* background-color: #ec8883; */
  position: absolute;
  left: 50%;
  bottom: 90px;
  transform: translateX(-600px);
  /* left: 130px; */
}

.banner-list {
  width: 285px;
  height: 65px;
  border: 1px solid #808181;
  border-radius: 2px;
  color: #1a1a1a;
  font-size: 18px;
  text-align: center;
  line-height: 65px;
  margin-right: 30px;
}
.banner-list-active {
  color: #e72c21;
}

/* 嵌入式 */
.embedded {
  width: 100%;
  color: #1a1a1a;
  background-color: #f2f2f2;
  overflow: hidden;
}
.embedded-tit {
  height: 185px;
  /* background-color: #808181; */
  font-size: 34px;
  font-weight: bold;
  text-align: center;
  line-height: 185px;
}

.embedded-list{
  width: 100%;
  /* height: 500px; */
  /* background-color: rgb(232, 131, 236); */
  transform: translateX(-650px);
  margin-left: 50%;
}

.embedded-list-box{
    /* background-color: #ec8883; */
    width: 285px;
    /* margin: auto; */
}

.embedded-list-box li:not(.embedded-list-tit) {
  font-size: 16px;
  margin-top: 35px;
}

.embedded-list-tit {
  font-size: 24px;
}

.embedded-list2 {
  width: 100%;
  /* background-color: royalblue; */
  /* position: relative; */
  /* top: 10px; */
  transform: translateX(-650px);
  margin-left: 50%;
}

.embedded-list2 > div {
  width: 325px;
  /* background-color: #e72c21; */
  /* margin-right: 15px; */
  font-size: 16px;
  color: #1a1a1a;
}

.embedded-imgbox {
  width: 100%;
  height: 220px;
  border: 1px solid #808181;
  margin-bottom: 35px;
}

.embedded-imgbox img {
  display: block;
  margin-top: calc(50% - 100px);
  margin-left: auto;
  margin-right: auto;
}

/* 物联网 */
.internal-imgbox {
  width: 100%;
  height: 220px;
  border: 1px solid #808181;
  margin-bottom: 35px;
}

.internal-imgbox img {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* 联系 */
.connect {
  width: 100%;
  height: 350px;
  background-color: #ededed;
}
.connect-cont {
  /* width: 100px; */
  /* height: 125px; */
  /* background-color: royalblue; */
  margin-top: 90px;
  margin-left: 400px;
  font-size: 18px;
  color: #1a1a1a;
}


.vr {
  height: 300px;
  /* background-color: #e72c21; */
}
.application {
  height: 200px;
  /* background-color: #e72c21; */
}
.internal {
  height: 350px;
  /* background-color: #e72c21; */
}
.person {
  height: 180px;
  /* background-color: #e72c21; */
}