.txt400Size14 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 400;
  font-size: 14px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.txt400Size12 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 400;
  font-size: 12px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.txt400Size20 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 400;
  font-size: 20px;
  text-align: center;
  font-style: normal;
  text-transform: none;
}


.txt600Size18 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 600;
  font-size: 18px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.txt600Size20 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 600;
  font-size: 20px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.txt600Size44 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 600;
  font-size: 44px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.txt600Size34 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 600;
  font-size: 34px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.txt400Size16 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 400;
  font-size: 16px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.txt600Size48 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 600;
  font-size: 48px;
  text-align: left;
  font-style: normal;
  text-transform: none;
  color: #FFFFFF;
}

.txt400Size26 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 400;
  font-size: 26px;
  text-align: left;
  font-style: normal;
  text-transform: none;
  color: #FFFFFF;
}

.txt400Size18 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 400;
  font-size: 18px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.txt600Size16 {
  font-family: Microsoft YaHei UI, Microsoft YaHei UI;
  font-weight: 600;
  font-size: 18px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.txtHover:hover {
  cursor: pointer;
  opacity: 0.8;
}

.pageWrap {
  width: 100%;
  height: auto;
  background: #000000;
  min-width: 1896px;
}

.banxin1440 {
  width: 1440px;
}

.banxin100 {
  width: 100%;
}

.header {
  height: 54px;
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  background-color: #000000;
  padding: 0 5px;
}

/* 占位 */
.headerL {
  width: 111px;
  height: 26px;
  background-image: url('../img/title.png');
  background-size: 100% 100%;
}

.headerRTxt {
  color: #FFFFFF;

}

.headerRFreeTxt {
  /* width: 110px;
  height: 32px;
  border-radius: 30px 30px 30px 30px;
  border: 1px solid #4E4E4E;
  color: #FFFFFF; */
  color: #FFFFFF;
  /* margin-left: 30px; */
}

/* TopBg */
.indexTopBg {
  position: relative;
  height: 829px;
  overflow: hidden;
  margin-top: 54px;
}

/* 替代原 .indexTopBg 的 background-image 改为视频背景 */
.indexTopVideo {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
  /* 防止阻碍点击 */
}

.indexTopBg::before {
  content: '';
  position: absolute;
  top: 0px;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 830px;
  background-image: url('../img/TopMengban.png');
  z-index: 1;
}

.indexTopL,
.indexTopR {
  /* width: 594px;
  height: 879px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 0px;
  opacity: 0.7;
  z-index: 2; */
}

.indexTopCent {
  flex: 1;
  position: relative;
  z-index: 2;
}

.indexTitle {
  height: 63px;
  width: 471px;
  background-image: url('../img/indexTitle.png');
  background-size: 100% 100%;
}


.indexMark {
  margin-top: 0px;
  margin-bottom: 32px;
  width: 631px;
  /* 占位  这个字体不一定认可 */
  white-space: pre-line;
  /* 保留换行符，并在必要时换行 */
  display: inline-block;
  /* 让元素宽度根据内容自适应 */
  max-width: 100%;
  /* 防止超出容器宽度 */
  color: #C2C2C2;
  line-height: 30px;
}

.indexBtn {
  width: 218px;
  height: 58px;
  background: #E56812;
  border-radius: 30px 30px 30px 30px;

  color: #FFFFFF;

}

.indexBtn:hover {
  cursor: pointer;
  background-color: #ab4e0e;
}

/* introWrap */
.introWrap {
  height: 1619px;
  padding-top: 120px;
  padding-bottom: 100px;
  background: #0A0A0A;
}

.introItem {
  margin-top: 84px;
  width: 1440px;
}

.IntroTxtWrap {
  /* width: 497px; */
}

.introItem:nth-child(1) {
  margin-top: 0;
}

.IntroImgBg {
  width: 497px;
  height: 288px;
}

/* 占位 */
.IntroImgR {
  margin-left: 123px;
}

.IntroImgL {
  margin-right: 123px;      
}

.IntroItemTitle {
  height: 46px;
  color: #FFFFFF;
  margin-bottom: 15px;
}

.IntroItemMark {
  margin-top: 14px;
  white-space: pre-line;
  display: inline-block;
  max-width: 448px;
  color: #AAAAAA;
  line-height: 20px;
}

/* 特色功能 */
.specialWrap {
  padding: 0 240px 80px 240px;
  min-width: 1440px;
}

.moduleTitle {
  margin-top: 100px;
  margin-bottom: 60px;
  color: #FFFFFF;
}

.specialItemW {
  max-width: 1440px;
  min-width: 1440px;
}

.specialItem {
  margin-right: 20px;
  width: 345px;
  height: 450px;
  background: #090909;
  border-radius: 4px 4px 4px 4px;
  border: 1px solid #2A2A2E;
  margin-bottom: 20px;
}

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

.specialItemTitle {
  height: 35px;
  color: #FFFFFF;
  margin-top: 38px;
  margin-bottom: 14px;
}

.specialItemMark {
  margin-bottom: 24px;
  color: #6E6E6E;
  width: 250px;
  line-height: 20px;
}

.specialItemImg {
  /* background-color: #fff; */
  width: 250px;
  height: 250px;
}

.specialItemImgNOTip {
  width: 250px;
  height: 250px;
}

.specialTipWrap {
  width: 270px;
  height: 102px;
  background: #090909;
  border-radius: 4px 4px 4px 4px;
  border: 1px solid #2A2A2E;
  border-bottom: none;
  padding: 11px 15px 0 15px;
}

.specialTipTitle {
  height: 16px;
  color: #808080;
  margin-bottom: 6px;
}

.specialTipMark {
  color: #DFDFDF;
  line-height: 16px;
}

/* 产品特点 */
.productWrap {
  padding: 0 240px 140px 240px;
}

.productItem {
  width: 345px;
  height: 260px;
  /* background-color: #fff; */
  margin-right: 20px;
  background-size: 100% 100%;
}

.productItem1 {
  background-image: url('../img/productW1.png');
}

.productItem2 {
  background-image: url('../img/productW2.png');
}

.productItem3 {
  background-image: url('../img/productW3.png');
}

.productItem4 {
  background-image: url('../img/productW4.png');
}

.productItem:nth-child(4) {
  margin-right: 0;
}

.productItemImg {
  width: 70px;
  height: 70px;
}

.productItemTitle {
  margin-top: 30px;
  /* 距离不确定 */
  margin-bottom: 10px;
  color: #D5D5D5;
  height: 24px;
}

.productItemMark {
  color: #D5D5D5;
}

/* 案例 */
.caseWrap {
  padding-bottom: 100px;
  background: #18181B;
}

.caseItemImgBig {
  width: 306px;
  height: 306px;
}

.caseItemConWrap {
  width: 306px;
  height: 306px;
  position: relative;
  background: #0A0A0A;
  border-radius: 10px 10px 10px 10px;
  border: 1px solid #2A2A2E;
}

.progressOverlay {
  width: 306px;
  height: 306px;
  pointer-events: none;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 10;
  border-radius: 10px 10px 10px 10px;
  display: none;
}

.progressLoader {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
    box-shadow: 0 -1px 0 rgba(255, 255, 255, 0.4);
  }

  50% {
    transform: rotate(180deg);
    box-shadow: 0 -1px 0 rgba(255, 255, 255, 0.4);
  }

  100% {
    transform: rotate(360deg);
    box-shadow: 0 -1px 0 rgba(255, 255, 255, 0.4);
  }
}

.caseItemImg {
  width: 148px;
  height: 148px;
  background: #0A0A0A;
  position: relative;
  border-radius: 10px 10px 10px 10px;
  border: 1px solid #2A2A2E;
}

.marginR10 {
  margin-right: 10px;
}

.marginRT10 {
  margin-right: 10px;
  margin-top: 10px;
}

.caseItemImgsmall {
  width: 148px;
  height: 148px;
  border-radius: 10px 10px 10px 10px;

}

.caseItemImgHover {
  width: 148px;
  height: 148px;
  border-radius: 10px 10px 10px 10px;
  position: absolute;
  top: 0;
  left: 0;
  display: none;
}

.caseItemImg:hover .caseItemImgHover {
  /* display: block; */
}

.caseItemImg:hover .caseItemImgsmall {
  /* display: none; */
}


/* 免费下载 */
.freeDownWrap {
  padding: 124px 260px;
}

.freeDownCon {
  width: 1400px;
  height: 343px;
  background: #161616;
  border-radius: 34px 34px 34px 34px;
  border: 1px solid #3E3E3E;
  padding: 57px 105px 55px 105px;
}

.freeDownConLeftTxt {
  color: #FFFFFF;
}

.freeDownConLeftTxtMar12 {
  margin-top: 12px;
  margin-bottom: 50px;
}

.freeDownConLeftBtn {
  width: 253px;
  height: 64px;
  background: #E56812;
  border-radius: 33px 33px 33px 33px;

  color: #FFFFFF;
}

.freeDownConLeftBtn:hover {
  cursor: pointer;
  background-color: #ab4e0e;
}

.freeDownConRightImg {
  width: 322px;
  height: 234px;
}

/* 底部 */
.footerWrap {
  background: #282828;
}

.footerTop {
  height: 88px;
}

.footerBott {
  border-top: 1px solid #444444;
  height: 19px;
  color: #5D5D5D;
  height: 65px;
}

.footerTopItem {
  margin-right: 49px;
}

.footerTopItem:nth-child(3) {
  margin-right: 0;
}

.footerTopImg {
  width: 30px;
  height: 30px;
  margin-right: 14px;
}

.footerTopTxt {
  color: #8E8E8E;
}
.footerTopTxtLink:hover{
  color: #E56812;
}
.footerTopTxtBlod {
  color: #FFFFFF;
}
.footerTopTxtLink:hover .footerTopTxtBlod{
  color: #E56812;
}
.footerBottRItem{
  margin-left: 30px;
}