html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 1920 */
@media only screen and (min-width: 1878px) {
  .banner {
    max-width: 1920px;
    height: 1080px;
  }
  .head-wrap {
    padding-top: 45px;
    max-width: 1545px;
  }
  .logo {
    width: 41px;
    height: 41px;
  }
  .title {
    margin-left: 20px;
    font-size: 29px;
  }
  .banner-inner {
    padding-top: 460px;
    margin: 166px auto 0 auto;
    width: 1560px;
    height: 587px;
  }
  .btn {
    width: 303px;
    height: 79px;
    margin-right: 30px;
    border-radius: 7px;
  }
  .btn-i-pc {
    width: 43px;
    height: 43px;
  }
  .btn-t-pc {
    margin-left: 11px;
    font-size: 24px;
  }
  .btn-i-mb {
    width: 38px;
    height: 38px;
  }
  .btn-t-mb {
    margin-left: 11px;
    font-size: 26px;
  }
  .btn-mb:hover .m-code{
    width: 165px;
    height: 165px;
  }
  .m-code {
    top: 0;
    left: 320px;
  }
  .explain {
    max-width: 1920px;
    height: 900px;
    padding-top: 100px;
  }
  .explain-inner {
    height: 800px;
  }
  .sub-title {
    font-size: 58px;
  }
  .e-left {
    width: 672px;
  }
  .e-left-title {
    margin-top: 131px;
    width: 266px;
    height: 78px;
    line-height: 78px;
    font-size: 45px;
  }
  .e-left-desc {
    height: 100px;
    margin-top: 45px;
    font-size: 32px;
    line-height: 50px;
  }
  .e-tab-wrap {
    width: 614px;
    margin-top: 80px;
  }
  .e-tab {
    width: 204px;
  }
  .e-img {
    width: 49px;
    height: 49px;
  }
  .e-name {
    margin-top: 20px;
    font-size: 24px;
  }
  .e-line-wrap {
    margin-top: 48px;
    width: 614px;
    height: 3px;
  }
  .e-line {
    width: 204px;
    height: 3px;
  }
  .e-right {
    width: 997px;
    height: 673px;
    margin-top: 27px;
  }
  .work {
    width: 100%;
    max-width: 1920px;
    height: 1190px;
    margin: 100px auto auto;
    padding-top: 113px;
  }
  .work-inner {
    height: 1190px;
  }
  .video-wrap {
    width: 1407px;
    height: 769px;
    margin: 73px auto auto;
  }
  .video {
    width: 925px;
    height: 520px;
    top: 77px;
    left: 235px;
  }
  .lead {
    width: 100%;
    max-width: 1920px;
    height: 1060px;
    margin: 46px auto auto;
  }
  .lead-banner {
    width: 100%;
    height: 440px;
    padding-top: 79px;
  }
  .lead-inner {
    width: 962px;
    height: 518px;
    margin: -160px auto auto;
  }
}

/* 1680 */
@media only screen and (min-width: 1680px) and (max-width: 1877px) {
  .banner {
    /* max-width: 1680px; */
    height: 945px;
  }
  .head-wrap {
    padding-top: 40px;
    max-width: 1353px;
  }
  .logo {
    width: 35px;
    height: 35px;
  }
  .title {
    margin-left: 18px;
    font-size: 25px;
  }
  .banner-inner {
    padding-top: 402px;
    margin: 145px auto auto;
    width: 1353px;
    height: 504px;
  }
  .btn {
    width: 265px;
    height: 69px;
    margin-right: 25px;
    border-radius: 6px;
  }
  .btn-i-pc {
    width: 37px;
    height: 38px;
  }
  .btn-t-pc {
    margin-left: 11px;
    font-size: 21px;
  }
  .btn-i-mb {
    width: 32px;
    height: 32px;
  }
  .btn-t-mb {
    margin-left: 11px;
    font-size: 23px;
  }
  .btn-mb:hover .m-code{
    width: 145px;
    height: 145px;
  }
  .m-code {
    top: 0;
    left: 280px;
  }
  .explain {
    /* max-width: 1680px; */
    height: 883px;
    padding-top: 100px;
  }
  .explain-inner {
    padding-top: 30px;
    height: 783px;
  }
  .sub-title {
    font-size: 50px;
  }
  .e-left {
    width: 588px;
  }
  .e-left-title {
    margin-top: 119px;
    width: 233px;
    height: 68px;
    line-height: 68px;
    font-size: 39px;
  }
  .e-left-desc {
    height: 100px;
    margin-top: 35px;
    font-size: 28px;
    line-height: 50px;
  }
  .e-tab-wrap {
    width: 538px;
    margin-top: 65px;
  }
  .e-tab {
    width: 179px;
  }
  .e-img {
    width: 46px;
    height: 46px;
  }
  .e-name {
    margin-top: 13px;
    font-size: 21px;
  }
  .e-line-wrap {
    margin-top: 48px;
    width: 538px;
    height: 3px;
  }
  .e-line {
    width: 179px;
    height: 3px;
  }
  .e-right {
    width: 873px;
    height: 589px;
    margin-top: 24px;
  }
  .work {
    width: 100%;
    /* max-width: 1680px; */
    height: 920px;
    margin: 0 auto;
    padding-top: 100px;
  }
  .work-inner {
    height: 820px;
  }
  .video-wrap {
    width: 1231px;
    height: 637px;
    margin: 62px auto auto;
  }
  .video {
    width: 770px;
    height: 455px;
    top: 55px;
    left: 231px;
  }
  .lead {
    width: 100%;
    /* max-width: 1680px; */
    height: 854px;
    margin: 0 auto;
  }
  .lead-banner {
    width: 100%;
    height: 384px;
    padding-top: 120px;
  }
  .lead-inner {
    width: 1037px;
    height: 558px;
    margin: -160px auto auto;
  }
}

/* 1440 */
@media only screen and (min-width:1440px) and (max-width:1679px) {
  .banner {
    /* max-width: 1440px; */
    height: 788px;
  }
  .head-wrap {
    padding-top: 33px;
    max-width: 1111px;
  }
  .logo {
    width: 30px;
    height: 30px;
  }
  .title {
    margin-left: 15px;
    font-size: 21px;
  }
  .banner-inner {
    padding-top: 335px;
    margin: 117px auto auto;
    width: 1111px;
    height: 418px;
  }
  .btn {
    width: 221px;
    height: 58px;
    margin-right: 20px;
    border-radius: 5px;
  }
  .btn-i-pc {
    width: 31px;
    height: 31px;
  }
  .btn-t-pc {
    margin-left: 11px;
    font-size: 17px;
  }
  .btn-i-mb {
    width: 27px;
    height: 27px;
  }
  .btn-t-mb {
    margin-left: 11px;
    font-size: 17px;
  }
  .btn-mb:hover .m-code{
    width: 120px;
    height: 121px;
  }
  .m-code {
    top: 0;
    left: 230px;
  }
  .explain {
    /* max-width: 1440px; */
    height: 736px;
    padding-top: 87px;
  }
  .explain-inner {
    /* padding-top: 30px; */
    height: 649px;
  }
  .sub-title {
    font-size: 42px;
  }
  .e-left {
    width: 490px;
  }
  .e-left-title {
    width: 194px;
    height: 56px;
    margin-top: 96px;
    line-height: 56px;
    font-size: 33px;
  }
  .e-left-desc {
    height: 70px;
    margin-top: 29px;
    font-size: 23px;
    line-height: 35px;
  }
  .e-tab-wrap {
    width: 447px;
    margin-top: 97px;
  }
  .e-tab {
    width: 149px;
  }
  .e-img {
    width: 37px;
    height: 38px;
  }
  .e-name {
    margin-top: 13px;
    font-size: 18px;
  }
  .e-line-wrap {
    margin-top: 48px;
    width: 447px;
    height: 3px;
  }
  .e-line {
    width: 149px;
    height: 3px;
  }
  .e-right {
    width: 727px;
    height: 490px;
    margin-top: 20px;
  }
  .work {
    width: 100%;
    /* max-width: 1440px; */
    height: 766px;
    margin: 0 auto;
    padding-top: 83px;
  }
  .work-inner {
    height: 683px;
  }
  .video-wrap {
    width: 1025px;
    height: 560px;
    margin: 52px auto auto;
  }
  .video {
    width: 674px;
    height: 379px;
    top: 57px;
    left: 175px;
  }
  .lead {
    width: 100%;
    /* max-width: 1440px; */
    height: 711px;
    margin: 0 auto;
  }
  .lead-banner {
    width: 100%;
    height: 320px;
    padding-top: 90px;
  }
  .lead-inner {
    width: 864px;
    height: 465px;
    margin: -115px auto auto;
  }
}

/* 1366 */
@media only screen and (min-width:1359px) and (max-width:1439px) {
  .banner {
    height: 769px;
  }
  .head-wrap {
    padding-top: 32px;
    max-width: 1109px;
  }
  .logo {
    width: 29px;
    height: 29px;
  }
  .title {
    margin-left: 15px;
    font-size: 21px;
  }
  .banner-inner {
    padding-top: 326px;
    margin: 100px auto auto;
    width: 1109px;
    height: 409px;
  }
  .btn {
    width: 215px;
    height: 56px;
    margin-right: 20px;
    border-radius: 5px;
  }
  .btn-i-pc {
    width: 30px;
    height: 30px;
  }
  .btn-t-pc {
    margin-left: 11px;
    font-size: 17px;
  }
  .btn-i-mb {
    width: 27px;
    height: 27px;
  }
  .btn-t-mb {
    margin-left: 11px;
    font-size: 17px;
  }
  .btn-mb:hover .m-code{
    width: 115px;
    height: 116px;
  }
  .m-code {
    top: 0;
    left: 230px;
  }
  .explain {
    /* max-width: 1440px; */
    height: 720px;
    padding-top: 86px;
  }
  .explain-inner {
    /* padding-top: 30px; */
    height: 634px;
  }
  .sub-title {
    font-size: 40px;
  }
  .e-left {
    width: 478px;
  }
  .e-left-title {
    width: 190px;
    height: 55px;
    margin-top: 96px;
    line-height: 55px;
    font-size: 32px;
  }
  .e-left-desc {
    height: 70px;
    margin-top: 28px;
    font-size: 21px;
    line-height: 35px;
  }
  .e-tab-wrap {
    width: 437px;
    margin-top: 67px;
  }
  .e-tab {
    width: 145px;
  }
  .e-img {
    width: 34px;
    height: 34px;
  }
  .e-name {
    margin-top: 15px;
    font-size: 17px;
  }
  .e-line-wrap {
    margin-top: 48px;
    width: 437px;
    height: 3px;
  }
  .e-line {
    width: 145px;
    height: 3px;
  }
  .e-right {
    width: 710px;
    height: 479px;
    margin-top: 20px;
  }
  .work {
    width: 100%;
    /* max-width: 1440px; */
    height: 749px;
    margin: 0 auto;
    padding-top: 80px;
  }
  .work-inner {
    height: 669px;
  }
  .video-wrap {
    width: 1001px;
    height: 547px;
    margin: 52px auto auto;
  }
  .video {
    width: 658px;
    height: 370px;
    top: 57px;
    left: 169px;
  }
  .lead {
    width: 100%;
    /* max-width: 1440px; */
    height: 694px;
    margin: 0 auto;
  }
  .lead-banner {
    width: 100%;
    height: 283px;
    padding-top: 75px;
  }
  .lead-inner {
    width: 843px;
    height: 454px;
    margin: -115px auto auto;
  }
}

/* 1280 */
@media only screen and (max-width:1358px) {
  .banner {
    height: 675px;
  }
  .head-wrap {
    padding-top: 28px;
    max-width: 966px;
  }
  .logo {
    width: 25px;
    height: 25px;
  }
  .title {
    margin-left: 15px;
    font-size: 18px;
  }
  .banner-inner {
    padding-top: 287px;
    margin: 100px auto auto;
    width: 966px;
    height: 360px;
  }
  .btn {
    width: 189px;
    height: 49px;
    margin-right: 20px;
    border-radius: 5px;
  }
  .btn-i-pc {
    width: 27px;
    height: 27px;
  }
  .btn-t-pc {
    margin-left: 11px;
    font-size: 15px;
  }
  .btn-i-mb {
    width: 23px;
    height: 23px;
  }
  .btn-t-mb {
    margin-left: 11px;
    font-size: 15px;
  }
  .btn-mb:hover .m-code{
    width: 112px;
    height: 113px;
  }
  .m-code {
    top: 0;
    left: 200px;
  }
  .explain {
    /* max-width: 1440px; */
    height: 631px;
    padding-top: 75px;
  }
  .explain-inner {
    /* padding-top: 30px; */
    height: 556px;
  }
  .sub-title {
    font-size: 36px;
  }
  .e-left {
    width: 420px;
  }
  .e-left-title {
    width: 158px;
    height: 48px;
    margin-top: 85px;
    line-height: 48px;
    font-size: 28px;
  }
  .e-left-desc {
    height: 70px;
    margin-top: 25px;
    font-size: 20px;
    line-height: 35px;
  }
  .e-tab-wrap {
    width: 384px;
    margin-top: 50px;
  }
  .e-tab {
    width: 128px;
  }
  .e-img {
    width: 30px;
    height: 30px;
  }
  .e-name {
    margin-top: 19px;
    font-size: 14px;
  }
  .e-line-wrap {
    margin-top: 48px;
    width: 384px;
    height: 3px;
  }
  .e-line {
    width: 128px;
    height: 3px;
  }
  .e-right {
    width: 678px;
    height: 458px;
    margin-top: 12px;
  }
  .work {
    width: 100%;
    /* max-width: 1440px; */
    height: 749px;
    margin: 0 auto;
    padding-top: 80px;
  }
  .work-inner {
    height: 657px;
  }
  .video-wrap {
    width: 879px;
    height: 480px;
    margin: 45px auto auto;
  }
  .video {
    width: 578px;
    height: 325px;
    top: 47px;
    left: 148px;
  }
  .lead {
    width: 100%;
    /* max-width: 1440px; */
    height: 610px;
    margin: 0 auto;
  }
  .lead-banner {
    width: 100%;
    height: 249px;
    padding-top: 65px;
  }
  .lead-inner {
    width: 740px;
    height: 399px;
    margin: -80px auto auto;
  }
}

.banner {
  width: 100%;
  margin: 0 auto;
  background: url("../img/pc/s1-b.png") no-repeat center top;
  background-size: 100% 100%;
}
.head-wrap {
  display: flex;
  align-items: center;
  margin: 0 auto;
}
.logo {
  background: url("../img/pc/logo.svg") no-repeat;
  background-size: 100% 100%;
}
.title {
  font-family: Source Han Sans CN-Bold, Source Han Sans CN;
  font-weight: bold;
  color: #333333;
}
.banner-inner {
  background: url("../img/pc/s1-i.svg") no-repeat;
  background-size: 100% 100%;
}
.btn-wrap {
  display: flex;
  align-items: center;
}
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.btn-pc {
  background: #3370FF;
  color: #ffffff;
}
.btn-i-pc {
  background: url("../img/pc/pc-icon.svg") no-repeat;
  background-size: 100% 100%;
}
.btn-t-pc {
  font-family: Source Han Sans CN-Medium, Source Han Sans CN;
  font-weight: 500;
  color: #FFFFFF;
}
.btn-mb {
  position: relative;
  background: transparent;
  border: 1px solid #3370FF;
  box-sizing: border-box;
}
.btn-i-mb {
  background: url("../img/pc/m-icon.svg") no-repeat;
  background-size: 100% 100%;
}
.btn-t-mb {
  font-family: Source Han Sans CN-Medium, Source Han Sans CN;
  font-weight: 500;
  color: #3370FF;
}
.btn-mb:hover .m-code {
  opacity: 1;
  transition: 0.6s all;
}
.m-code {
  width: 0px;
  height: 0px;
  opacity: 0;
  background: url("../img/pc/code.png") no-repeat;
  background-size: 100% 100%;
  position: absolute;
}
.btn-pc:hover {
  background: #5581FF;
}
.btn-pc:active {
  background: #245BDB;
}
.btn-mb:hover {
  background: #EEF3FF;
}
.btn-mb:active {
  background: #DFE8FF;
}
.sub-blue {
  color: #5581FF;
}
.explain {
  width: 100%;
  margin: 0 auto;
}
.explain-inner {
  width: 100%;
  background: url("../img/pc/s2-b.png") no-repeat;
  background-size: 100% 100%;
}
.sub-title {
  font-family: Source Han Sans CN-Bold, Source Han Sans CN;
  font-weight: bold;
  color: #333333;
  text-align: center;
}
.e-wrap {
  display: flex;
  justify-content: center;
}
.e-left-title {
  background: url("../img/pc/pt.svg") no-repeat;
  background-size: 100% 100%;
  text-align: center;
  font-family: Source Han Sans CN-Bold, Source Han Sans CN;
  font-weight: bold;
  color: #FFFFFF;
}
.e-left-desc {
  font-family: Microsoft YaHei-Regular, Microsoft YaHei;
  font-weight: 400;
  color: #646A73;
}
.e-tab-wrap {
  display: flex;
  align-items: center;
}
.e-tab {
  cursor: pointer;
}
.e-img {
  margin: 0 auto;
}
.e-name {
  text-align: center;
  font-family: Microsoft YaHei-Regular, Microsoft YaHei;
  font-weight: 400;
  color: #333333;
}
.e-line-wrap {
  background: #E3EAFF;
  position: relative;
}
.e-line {
  background-color: #5581FF;
  position: absolute;
}
.work {
  background: url("../img/pc/s3-b.png") no-repeat;
  background-size: 100% 100%;
}
.video-wrap {
  position: relative;
  background: url("../img/pc/s3-video.svg") no-repeat;
  background-size: 100% 100%;
}
.video {
  position: absolute;
}
.lead-banner {
  background: url("../img/pc/s4-b.png") no-repeat;
  background-size: 100% 100%;
}
.lead-inner {
  background: url("../img/pc/s4-in.svg") no-repeat top center;
  background-size: 100% 100%;
}
.footer {
  width: 100%;
  margin: 0 auto;
  max-width: 1920px;
  background-color: #F6F6F6;
  height: 160px;
}
.footer-content {
  margin: 0 auto;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.footer-info {
  text-align: center;
  font-size: 14px;
  font-family: Microsoft YaHei UI;
  font-weight: 400;
  color: #666666;
}
.footer-copyright {
  margin-bottom: 25px;
}
.footer-btn {
  display: inline;
  font-size: 14px;
  font-family: Microsoft YaHei UI;
  font-weight: 400;
  color: #666666;
  margin: 0 15px;
}
::-webkit-scrollbar {
	width:7px;
	height:7px
}
::-webkit-scrollbar-button {
	width:0;
	height:0
}
::-webkit-scrollbar-thumb {
	background-color: rgba(0,0,0,0.23);
}
::-webkit-scrollbar-thumb:hover {
	background-color:rgba(0,0,0,.35)
}
::-webkit-scrollbar-thumb:active {
	background-color:rgba(0,0,0,.45)
}