.w {
  width: 1200px;
  margin: 0 auto;
}

.headerBox {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header {
  position: relative;
  width: 100%;
  height: auto;
  border: none;
  
}
.header-bg-box {
  background: #EFF2FB;
}

/* banner */
.banner-box {
  margin-top: 117px;
}
.banner-box .banner-bg {
  width: 100%;
}

.banner-content {
  position: absolute;
  left: 50%;
  top: 26%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-sizing: border-box;
}

.banner-title {
  display: flex;
  align-items: center;
  margin-bottom: 24px;
}
.banner-p1 {
  margin-bottom: 24px;
}
.banner-title h1:nth-child(1) {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 700;
  font-size: 44px;
  line-height: 44px;
  letter-spacing: 0.1em;
  color: #233042;
}

.banner-title h1:nth-child(2) {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 700;
  font-size: 44px;
  line-height: 57px;
  letter-spacing: 0.1em;
  color: #FFFFFF;
  background: #6688FC;
  padding-left: 5px;
  box-sizing: border-box;
}

.banner-box>p {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 400;
  font-size: 18px;
  line-height: 18px;
  color: #717994;
  margin-top: 21px;
  margin-bottom: 60px;
}

.banner-download-box {
  display: flex;
  align-items: center;
}

.banner-download-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-right: 80px;
}
.banner-download-item:last-child {
  margin-right: 0;
}
.banner-download-item:nth-child(1) a,.banner-download-item:nth-child(2) a {
  cursor: default;
}
.banner-download-item a {
  position: relative;
  display: block;
  width: 132px;
  height: 132px;
  transition: all .8s;
  transform-style: preserve-3d; /* 设置3d */
}
.banner-download-item a.active {
  transform: rotateY(180deg);
}

.banner-download-item a img {
  position: absolute;
  top: 0;
  left: 0;
  text-align: center;
  backface-visibility: hidden; /* 隐藏背面 */
  width: 132px;
}

.banner-download-item a img:nth-child(2) {
  transform: rotateY(180deg);
}
.banner-download-item:nth-child(1) a img:nth-child(2),
.banner-download-item:nth-child(2) a img:nth-child(2) {
  position: absolute;
  left: 14px;
  top: 5px; 
  display: block;
  width: 107px;
  height: 107px;
  padding: 3px;
  box-sizing: border-box;
  background: #FFFFFF;
  box-shadow: 0px 8px 16px #CDCDD6;
  border-radius: 8px;
}

.banner-download-item h2 {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  line-height: 16px;
  color: #233042;
}

.banner-download-item p {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 400;
  font-size: 14px;
  line-height: 16px;
  color: #717994;
  margin-top: 20px;
}
.banner-img-box {
  position: relative;
}
.banner-img-box img:nth-child(2) {
  position: absolute;
  left: 327px;
  top: 67px;
}
.banner-img-box img:nth-child(3) {
  position: absolute;
  right: 129px;
  top: 71px;
}
.banner-img-box img:nth-child(4) {
  position: absolute;
  left: 500px;
  bottom: 195px
}
.banner-img-box img:nth-child(5) {
  position: absolute;
  right: 77px;
  bottom: 340px;
}

/* 高清 • 稳定 • 无延迟 */
.func-box {
  margin-top: 217px;
}

.func-content {
  width: 75%;
  min-width: 1200px;
  max-width: 1440px;
  background: #EFFBF7;
  border-radius: 50px;
  padding-top: 80px;
  padding-bottom: 100px;
  box-sizing: border-box;
}

.func-content h1 {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 700;
  font-size: 32px;
  line-height: 32px;
  color: #233042;
  text-align: center;
}

.func-content>p {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 400;
  font-size: 18px;
  line-height: 18px;
  text-align: center;
  color: #333333;
  margin-top: 30px;
  margin-bottom: 70px;
}

.func-content ul {
  display: flex;
  align-items: center;
  justify-content: center;
}

.func-content ul.func-ul1 {
  margin-bottom: 24px;
}

.func-content ul li {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 252px;
  height: 220px;
  background: #FFFFFF;
  border-radius: 12px;
  margin-right: 24px;
}

.func-content ul li:last-child {
  margin-right: 0;
}

.func-content ul li .func-text {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.func-content ul li .func-text img {
  display: block;
  margin: 0 auto;
}

.func-content ul li h2 {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  line-height: 16px;
  text-align: center;
  color: #233042;
  margin-top: 24px;
  margin-bottom: 20px;
}

.func-content ul li p {
  width: 176px;
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 400;
  font-size: 14px;
  line-height: 22px;
  text-align: center;
  color: #717994;
}


.func-content ul li span {
  display: none;
  width: 252px;
  height: 220px;
  background-clip: padding-box, border-box;
  background-origin: padding-box, border-box;
  background-image: linear-gradient(to right, #FFFFFF, #FFFFFF), linear-gradient(131.17deg, #FF9DE4 8.1%, #86ADEE 34.52%, #7DAEFF 87.95%);
  box-sizing: border-box;
  border: 2px solid transparent;
  border-radius: 12px;
}

.func-content ul li:hover span {
  display: block;
}


/* 简单3步，手机即变电脑摄像头 */
.step-box {
  margin-top: 150px;
}

.step-box h1 {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 700;
  font-size: 32px;
  line-height: 32px;
  color: #233042;
  text-align: center;
  margin-bottom: 70px;
}

.step-box ul {
  display: flex;
  justify-content: center;
}
.step-box ul li {
  margin-right: 70px;
}
.step-box ul li:last-child {
  margin-right: 0;
}
.step-box ul li h2 {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  line-height: 16px;
  color: #233042;
  margin-left: 22px;
}

.step-box ul li:nth-child(2) {
  margin-top: 40px;
}

.step-box ul li:nth-child(3) {
  margin-top: 80px;
}

.step-box ul li p {
  width: 155px;
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 400;
  font-size: 14px;
  line-height: 22px;
  color: #717994;
  margin-top: 20px;
  margin-left: 22px;
}

.step-box ul li .step-img {
  position: relative;
}

.step-box ul li .step-img img:nth-child(2) {
  position: absolute;
  left: 7px;
  bottom: 14px;
}

/* 使用场景 */
.scen-box {
  margin-top: 161px;
}

.scen-content {
  width: 75%;
  min-width: 1200px;
  max-width: 1440px;
  padding-top: 110px;
  padding-bottom: 160px;
  box-sizing: border-box;
  background: #FEF2F2;
  border-radius: 50px;
}

.scen-content h1 {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 700;
  font-size: 32px;
  line-height: 32px;
  color: #233042;
  text-align: center;
  margin-bottom: 100px;
}

.scen-content ul {
  display: flex;
  align-items: center;
  justify-content: center;
}

.scen-content ul li {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 15%;
  min-width: 190px;
  max-width: 224px;
  height: 224px;
  background: #FFFFFF;
  border-radius: 12px;
  margin-right: 20px;
}

.scen-content ul li:last-child {
  margin-right: 0;
}

.scen-content ul li .scen-text {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.scen-text h2 {
  font-family: 'Microsoft YaHei';
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  line-height: 16px;
  text-align: center;
  color: #233042;
  margin-top: 40px;
}

.scen-content ul li span {
  display: none;
  width: 100%;
  min-width: 190px;
  max-width: 224px;
  height: 224px;
  background-clip: padding-box, border-box;
  background-origin: padding-box, border-box;
  background-image: linear-gradient(to right, #FFFFFF, #FFFFFF), linear-gradient(131.17deg, #FF9DE4 8.1%, #86ADEE 34.52%, #7DAEFF 87.95%);
  box-sizing: border-box;
  border: 2px solid transparent;
  border-radius: 12px;
}

.scen-content ul li:hover span {
  display: block;
}

/* 评价 */
.assess-box {
  width: 100%;
  padding: 100px 0;
  box-sizing: border-box;
}

.assess-content {
  width: 1200px;
  margin: 0 auto;
}

.assess-content ul:nth-child(1) li {
  display: none;
  width: 100%;
  height: 307px;
  box-sizing: border-box;
  background: #F9FBFF;
  border-radius: 30px;
  position: relative;
  z-index: 10;
  text-align: center;
  padding-top: 48px;
}

.assess-star h1 {
  font-size: 26px;
  font-weight: 700;
  color: #2D2856;
  margin-bottom: 24px;
}

.assess-content ul:nth-child(1) li span {
  display: block;
  width: 1000px;
  height: 1px;
  background: #EDF0F3;
  border-radius: 0px 0px 0px 0px;
  margin: 40px auto 0 auto;
}

.assess-content ul:nth-child(1) li p {
  font-size: 18px;
  font-weight: 400;
  color: #666473;
  margin-top: 44px;
}

.assess-content ul:nth-child(1) li i {
  display: block;
  width: 40px;
  height: 40px;
  background: #F9FBFF;
  border-radius: 2px 2px 2px 2px;
  transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -webkit-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  position: absolute;
  bottom: -20px;
}

.left1 {
  left: 101px;
}

.left2 {
  left: 338px;
}

.left3 {
  left: 579px;
}

.left4 {
  left: 822px;
}

.left5 {
  left: 1062px;
}


.assess-content ul:nth-child(1) li:first-child {
  display: block;
}

.assess-content ul:nth-child(2) {
  display: flex;
  align-items: center;
  justify-content: space-around;
  margin-top: 63px;
}

.assess-content ul:nth-child(2) li {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.assess-content ul:nth-child(2) li:hover {
  cursor: pointer;
}

.assess-content ul:nth-child(2) li img {
  width: 76px;
  height: 76px;
}

.assess-content ul:nth-child(2) li p {
  font-family: 'Microsoft YaHei UI';
  font-style: normal;
  font-weight: 400;
  font-size: 16px;
  line-height: 30px;
  text-transform: lowercase;
  color: #666473;
  margin-top: 17px;
  margin-bottom: 11px;
}

.assess-content ul:nth-child(2) li h2 {
  font-family: 'Microsoft YaHei UI';
  font-style: normal;
  font-weight: 400;
  font-size: 20px;
  line-height: 30px;
  text-align: center;
  letter-spacing: 0.01em;
  color: #283256;
}