ul,
li {
  list-style: none;
  margin: 0;
  padding: 0;
}
.brtc-developer-center >.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 50px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
     -moz-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
     -moz-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  background: #006fff;
  padding: 0 10px;
  color: #fff;
  z-index: 1;
}
.brtc-developer-center >.header .left {
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
     -moz-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.brtc-developer-center >.header .left >a >img {
  width: 90px;
  margin-top: 6px;
}
.brtc-developer-center >.header .left .divide {
  display: inline-block;
  width: 1px;
  height: 30px;
  background: #fff;
  margin: 0 20px;
}
.brtc-developer-center >.header .right {
  height: 50px;
  overflow: visible;
  padding-right: 120px;
}
.brtc-developer-center >.header .right .brtc-btn {
  display: inline-block;
  height: 50px;
  line-height: 50px;
  cursor: pointer;
  padding: 0 17px;
  margin: 0 -2px;
  color: #fff;
}
.brtc-developer-center >.header .right .brtc-btn:hover {
  border-bottom: 2px solid #fff;
}
.brtc-developer-center >.header .right .brtc-btn.active {
  border-bottom: 2px solid #fff;
}
.brtc-developer-center >.header .right .login {
  display: none;
  position: absolute;
  top: 9px;
  right: 20px;
  color: #1795ff;
  width: 110px;
  height: 30px;
  line-height: 29px;
  background: #fff;
  border-radius: 15px;
  text-align: center;
  font-family: PingFangSC, PingFangSC-Regular;
  font-weight: 600;
}
.brtc-developer-center >.header .right .login-quit {
  position: absolute;
  top: -3px;
  right: 20px;
  width: 106px;
  height: 30px;
  border-radius: 6px;
  margin-top: 14px;
  cursor: pointer;
  -webkit-transition: height 0.2s;
  -moz-transition: height 0.2s;
  transition: height 0.2s;
  overflow: hidden;
  background: rgba(255,255,255,0.8);
  display: none;
}
.brtc-developer-center >.header .right .login-quit >p {
  margin: 0;
  line-height: 30px;
  font-size: 14px;
  font-family: SourceHanSansCN-Medium;
  text-align: left;
  padding-left: 13px;
}
.brtc-developer-center >.header .right .login-quit >p a {
  margin: 0 6px 0 6px;
  color: #666;
}
.brtc-developer-center >.header .right .login-quit >p a:hover {
  color: #1795ff;
}
.brtc-developer-center >.header .right .login-quit >p .quit:hover {
  color: #f00 !important;
}
.brtc-developer-center >.header .right .login-quit:hover {
  height: 68px;
  -webkit-box-shadow: 0px 10px 20px 0px rgba(0,0,0,0.1);
          box-shadow: 0px 10px 20px 0px rgba(0,0,0,0.1);
}
.brtc-developer-center >.header .right .login-quit:hover .login-quit-arrow {
  -webkit-transform: rotate(180deg);
     -moz-transform: rotate(180deg);
      -ms-transform: rotate(180deg);
          transform: rotate(180deg);
}
.brtc-developer-center >.header .right .login-quit .login-quit-arrow {
  display: inline-block;
  position: absolute;
  width: 20px;
  height: 20px;
  background: url("img/Artboard2_ef19ad5756.png") no-repeat;
  background-size: 100% 100%;
  top: 4px;
}
.brtc-developer-center .top-search {
  width: 1200px;
  margin: 0 auto;
  margin-top: 50px;
  padding-top: 24px;
  text-align: center;
}
.brtc-developer-center .top-search >header {
  font-size: 32px;
  font-family: PingFangSC, PingFangSC-Medium;
  font-weight: 500;
  text-align: center;
  color: #000;
}
.brtc-developer-center .top-search .search {
  font-size: 16px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
     -moz-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  width: 566px;
  padding: 5px 10px 5px 25px;
  border: 1px solid #e5e8ed;
  border-radius: 6px;
  -webkit-box-shadow: 0px 2px 6px 0px rgba(0,0,0,0.04), 0px 1px 1px 0px rgba(0,0,0,0.05);
          box-shadow: 0px 2px 6px 0px rgba(0,0,0,0.04), 0px 1px 1px 0px rgba(0,0,0,0.05);
  position: relative;
  margin: 0 auto;
  margin-top: 24px;
}
.brtc-developer-center .top-search .search:hover,
.brtc-developer-center .top-search .search:focus {
  border: 1px solid #e5e8ed;
  -webkit-box-shadow: 0px 2px 6px 0px rgba(23,149,255,0.2), 0px 1px 1px 0px rgba(23,149,255,0.4);
          box-shadow: 0px 2px 6px 0px rgba(23,149,255,0.2), 0px 1px 1px 0px rgba(23,149,255,0.4);
}
.brtc-developer-center .top-search .search .search-icon {
  width: 24px;
  height: 24px;
}
.brtc-developer-center .top-search .search .search-input {
  outline: none;
  -webkit-box-flex: 1;
  -webkit-flex: 1;
     -moz-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
  margin: 0 15px;
  background: none;
  border: 0;
  -webkit-box-shadow: none;
          box-shadow: none;
  padding: 10px 0;
}
.brtc-developer-center .top-search .search .search-input:-ms-input-placeholder {
  color: rgba(0,0,0,0.2);
  padding-left: 2px;
}
.brtc-developer-center .top-search .search .search-input::-ms-input-placeholder {
  color: rgba(0,0,0,0.2);
  padding-left: 2px;
}
.brtc-developer-center .top-search .search .search-input::-webkit-input-placeholder {
  color: rgba(0,0,0,0.2);
  padding-left: 2px;
}
.brtc-developer-center .top-search .search .search-input::-moz-placeholder {
  color: rgba(0,0,0,0.2);
  padding-left: 2px;
}
.brtc-developer-center .top-search .search .search-input:-ms-input-placeholder {
  color: rgba(0,0,0,0.2);
  padding-left: 2px;
}
.brtc-developer-center .top-search .search .search-input::placeholder {
  color: rgba(0,0,0,0.2);
  padding-left: 2px;
}
.brtc-developer-center .top-search .search .search-button {
  color: #fff;
  padding: 7px 35px;
  background-color: #1795ff;
  border-radius: 6px;
  cursor: pointer;
}
.brtc-developer-center .top-search .search .search-button:hover {
  background: #45aaff;
}
.brtc-developer-center .top-search .search .search-button:active {
  background: #1277cc;
}
.brtc-developer-center .top-search .search-guid-img {
  width: 1122px;
  margin: 40px 0 0;
}
.brtc-developer-center .center-content {
  width: 1200px;
  margin: 60px auto 0;
}
.brtc-developer-center .center-content >.title {
  font-size: 20px;
  font-family: PingFangSC, PingFangSC-Semibold;
  font-weight: 600;
  text-align: left;
  color: #333;
}
.brtc-developer-center .center-content .project-list {
  margin-top: 20px;
  height: 200px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: start;
  -webkit-align-items: flex-start;
     -moz-box-align: start;
      -ms-flex-align: start;
          align-items: flex-start;
}
.brtc-developer-center .center-content .project-list .item {
  display: inline-block;
  width: 380px;
  padding: 20px 28px 30px 38px;
  background: -webkit-gradient(linear, left top, left bottom, from(#009aff), color-stop(99%, #0218f6));
  background: -webkit-linear-gradient(top, #009aff, #0218f6 99%);
  background: -moz- oldlinear-gradient(top, #009aff, #0218f6 99%);
  background: linear-gradient(180deg, #009aff, #0218f6 99%);
  border-radius: 8px;
  -webkit-box-shadow: 0px 2px 14px 0px rgba(120,144,156,0.1);
          box-shadow: 0px 2px 14px 0px rgba(120,144,156,0.1);
  cursor: pointer;
}
.brtc-developer-center .center-content .project-list .item + .item {
  margin-left: 26px;
}
.brtc-developer-center .center-content .project-list .item .header {
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
     -moz-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
     -moz-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.brtc-developer-center .center-content .project-list .item .header .title {
  font-size: 18px;
  font-family: PingFangSC, PingFangSC-Medium;
  font-weight: 500;
  text-align: center;
  color: #fff;
}
.brtc-developer-center .center-content .project-list .item .header .icon {
  display: inline-block;
  width: 42px;
  height: 42px;
  background: url("img/brtc-icon-sprites@2x_78664697ce.png");
  background-position: 0 0;
  margin-left: 10px;
  background-size: 252px 42px;
}
.brtc-developer-center .center-content .project-list .item .header .icon.mic {
  background-position-x: 0;
}
.brtc-developer-center .center-content .project-list .item .header .icon.video {
  background-position-x: -42px;
}
.brtc-developer-center .center-content .project-list .item .header .icon.board {
  background-position-x: -84px;
}
.brtc-developer-center .center-content .project-list .item .header .icon.pencil {
  background-position-x: -126px;
}
.brtc-developer-center .center-content .project-list .item .header .icon.cloud {
  background-position-x: -168px;
}
.brtc-developer-center .center-content .project-list .item .header .icon.record {
  background-position-x: -210px;
}
.brtc-developer-center .center-content .project-list .item .content {
  overflow: hidden;
  height: 24px;
  -webkit-transition: height 0.2s linear;
  -moz-transition: height 0.2s linear;
  transition: height 0.2s linear;
}
.brtc-developer-center .center-content .project-list .item .content .en-title,
.brtc-developer-center .center-content .project-list .item .content .desc {
  font-size: 14px;
  font-family: PingFangSC, PingFangSC-Regular;
  font-weight: 400;
  text-align: left;
  color: #fff;
  -webkit-transition: -webkit-transform 0.2s linear;
  transition: -webkit-transform 0.2s linear;
  -moz-transition: transform 0.2s linear, -moz-transform 0.2s linear;
  transition: transform 0.2s linear;
  transition: transform 0.2s linear, -webkit-transform 0.2s linear, -moz-transform 0.2s linear;
}
.brtc-developer-center .center-content .project-list .item:hover .content {
  height: 48px;
}
.brtc-developer-center .center-content .project-list .item:hover .en-title,
.brtc-developer-center .center-content .project-list .item:hover .desc {
  -webkit-transform: translateY(-24px);
     -moz-transform: translateY(-24px);
      -ms-transform: translateY(-24px);
          transform: translateY(-24px);
}
.brtc-developer-center .center-content .tabs {
  margin-top: 20px;
  width: 100%;
  border: none;
  border-bottom: 1px solid rgba(51,51,51,0.1);
  overflow: visible;
}
.brtc-developer-center .center-content .tabs .scenes-tab {
  display: inline-block;
  width: 70px;
  margin: 0 63px;
  height: 48px;
  border: none;
  padding: 0 5px;
  -webkit-transform: translateY(1px);
     -moz-transform: translateY(1px);
      -ms-transform: translateY(1px);
          transform: translateY(1px);
  cursor: pointer;
}
.brtc-developer-center .center-content .tabs .scenes-tab:hover {
  border-bottom: 2px solid #0091ff;
  color: #0091ff;
}
.brtc-developer-center .center-content .tabs .scenes-tab.active {
  border-bottom: 2px solid #0091ff;
  color: #0091ff;
}
.brtc-developer-center .center-content .cards {
  display: none;
  margin-top: 10px;
  padding-bottom: 50px;
  padding-top: 20px;
}
.brtc-developer-center .center-content .cards.active {
  display: block;
  -webkit-animation: show 1s;
          animation: show 1s;
}
.brtc-developer-center .center-content .cards .card {
  display: inline-block;
  width: 380px;
  height: 120px;
  background: #fff;
  border: 1px solid #f0f0f0;
  border-radius: 9px;
  -webkit-box-shadow: 0px 2px 14px 0px rgba(120,144,156,0.1);
          box-shadow: 0px 2px 14px 0px rgba(120,144,156,0.1);
  padding: 20px 20px 20px 40px;
  -webkit-transition: -webkit-transform 0.2s linear;
  transition: -webkit-transform 0.2s linear;
  -moz-transition: transform 0.2s linear, -moz-transform 0.2s linear;
  transition: transform 0.2s linear;
  transition: transform 0.2s linear, -webkit-transform 0.2s linear, -moz-transform 0.2s linear;
  cursor: pointer;
}
.brtc-developer-center .center-content .cards .card:hover {
  -webkit-transform: translateY(-10px);
     -moz-transform: translateY(-10px);
      -ms-transform: translateY(-10px);
          transform: translateY(-10px);
}
.brtc-developer-center .center-content .cards .card + .card {
  margin-left: 26px;
}
.brtc-developer-center .center-content .cards .card >header {
  font-size: 18px;
  font-family: PingFangSC, PingFangSC-Medium;
  font-weight: 500;
  text-align: left;
  color: #333;
}
.brtc-developer-center .center-content .cards .card .desc {
  font-size: 14px;
  font-family: PingFangSC, PingFangSC-Regular;
  font-weight: 400;
  text-align: left;
  color: #333;
}
.brtc-developer-center .center-content .docs-link {
  margin-top: 20px;
}
.brtc-developer-center .center-content .docs-link >li {
  display: inline-block;
  height: 160px;
  background: #fff;
  border: 1px solid #f0f0f0;
  border-radius: 9px;
  -webkit-box-shadow: 0px 2px 14px 0px rgba(120,144,156,0.1);
          box-shadow: 0px 2px 14px 0px rgba(120,144,156,0.1);
  padding: 10px 0 40px;
}
.brtc-developer-center .center-content .docs-link >li + li {
  padding: 10px 30px 40px;
  margin-left: 10px;
}
.brtc-developer-center .center-content .docs-link >li .link {
  display: inline-block;
  width: 278px;
  font-size: 18px;
  font-family: PingFangSC, PingFangSC-Medium;
  font-weight: 500;
  text-align: center;
  color: #777;
}
.brtc-developer-center .center-content .docs-link >li .link:hover {
  color: #1795ff;
}
.brtc-developer-center .center-content .docs-link >li >p {
  margin-top: 30px;
}
.brtc-developer-center .bottom-content {
  margin-top: 60px;
  width: 100%;
  height: 240px;
  background: -webkit-gradient(linear, left top, left bottom, from(#1e78e1), color-stop(99%, #0219f6));
  background: -webkit-linear-gradient(top, #1e78e1, #0219f6 99%);
  background: -moz- oldlinear-gradient(top, #1e78e1, #0219f6 99%);
  background: linear-gradient(180deg, #1e78e1, #0219f6 99%);
  -webkit-box-shadow: 0px 2px 14px 0px rgba(120,144,156,0.1);
          box-shadow: 0px 2px 14px 0px rgba(120,144,156,0.1);
}
.brtc-developer-center .bottom-content .bottom-bg {
  width: 1200px;
  height: 100%;
  margin: 0 auto;
  text-align: center;
  background: url("img/brtc-bg-map_6df064631f.png");
  background-image: -webkit-image-set(url("img/brtc-bg-map@2x_9a382a48ff.png") 2x);
}
.brtc-developer-center .bottom-content .bottom-bg .title {
  font-size: 28px;
  font-family: PingFangSC, PingFangSC-Semibold;
  font-weight: 600;
  text-align: center;
  color: #fff;
  padding-top: 60px;
  margin: 0;
}
.brtc-developer-center .bottom-content .bottom-bg .button {
  display: inline-block;
  width: 208px;
  height: 48px;
  background: #fff;
  border-radius: 8px;
  margin: 20px auto 0;
  font-size: 16px;
  font-family: PingFangSC, PingFangSC-Semibold;
  font-weight: 600;
  text-align: center;
  line-height: 48px;
  color: #000;
}
.brtc-developer-center .bottom-content .bottom-bg .button:hover {
  opacity: 0.9;
}
@-webkit-keyframes show {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes show {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}