body {
  padding: 0!important;
  margin: 0;
}
.video-mask {
  position: fixed;
  left: 0;
  top: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 233;
  width: 100%;
  height: 100%;
  display: none;
}
.video-mask  video {
  width: 70vw;
  height: auto;
  margin: 8rem 15vw 0;
  position: absolute;
  z-index: 333;

}
.main .main1 {
  background-image: url(../images/bg77.png);
  width: 100%;
  height: 57rem;
  background-size: cover;
  padding: 8.25rem 0 0 15rem;
  display: flex;
  align-items: center;
}
.main .main1 .left {
  width: 30rem;
  margin-right: 5.375rem;
}
.main .main1 .left .tit {
  color: #333;
  font-size: 2.25rem;
  margin-bottom: 3.125rem;
  position: relative;
  font-weight: 600;
  font-family: Calibri;
}
.main .main1 .left .tit::after {
  position: absolute;
  content: '';
  width: 2.5rem;
  height: 4px;
  background: #B81927;
  left: 0;
  bottom: -2.125rem;
}
.main .main1 .left .desc {
  font-size: 1.125rem;
  color: #333;
  margin-bottom: 2.1875rem;
  line-height: 1.8rem;
  font-family: Calibri;
  text-align: justify;
}
.main .main1 .left img {
  width: 25.6875rem;
}
.main .main1 .right {
  position: relative;
  width: 68.75rem;
}
.main .main1 .right .bg {
  background-image: url(../images/yuan22.png);
  width: 43.125rem;
  height: 43.125rem;
  background-size: cover;
  padding: 6.125rem;
  position: relative;
}
.main .main1 .right .bg img{
  position: absolute;
  left: calc(50% - 2.5rem);
  top: calc(50% - 2.5rem);
  width: 5rem;
  z-index: 6;
}
.main .main1 .right .bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.main .main1 .right .right1 {
  position: absolute;
  top: 1.25rem;
  left: 30.25rem;
  display: flex;
  align-items: center;
}
.main .main1 .right .right1 img {
  width: 5.625rem;
  height: 5.625rem;
  margin-right: 1.25rem;
}
.main .main1 .right .right1 .right2 .title {
  font-size: 1.5rem;
  color: #333;
  line-height: 1.75rem;
  font-weight: 600;
  font-family: Calibri;
}
.main .main1 .right .right1 .right2 .desc {
  font-size: 0.875rem;
  color: #666666;
  line-height: 1.5rem;
  font-family: Calibri;
}
.main .main1 .right .right1:nth-child(2) {
  top: 11.625rem;
  left: 40rem;
}
.main .main1 .right .right1:nth-child(4) {
  top: 36.3125rem;
  left: 28.5rem;
}
.main .main1 .right .right1:nth-child(3) {
  top: 24.25rem;
  left: 38.5rem;
}
.main .main2 {
  width: 100%;
  padding: 5.625rem 15rem;
  background-color: #ffffff;
}
.main .main2 .tit {
  color: #333;
  font-size: 2.25rem;
  text-align: center;
  margin-bottom: 3.9375rem;
  position: relative;
  font-weight: 600;
  font-family: Calibri;
}
.main .main2 .tit::after {
  position: absolute;
  content: '';
  width: 2.5rem;
  height: 4px;
  background: #B81927;
  left: calc(50% - 1.25rem);
  bottom: -1.875rem;
}
.main .main2 .desc {
  text-align: center;
  margin-bottom: 5.3125rem;
  color: #666666;
  font-size: 1.125rem;
  padding: 0 10rem;
  font-family: Calibri;
  line-height:1.8;

}
.main .main2 .part {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.main .main2 .part .part1 {
  width: 28.75rem;
  height: 28.75rem;
  background: #F2F2F2;
  padding: 1.25rem;
  margin-bottom: 1.875rem;
}
.main .main2 .part .part1 .top {
  overflow: hidden;
  width: 26.25rem;
  height: 20rem;
}
.main .main2 .part .part1 .top img {
  width: 100%;
  height: 100%;
  transition: all 1.5s;
}
.main .main2 .part .part1 .top:hover img {
  transform: scale(1.2);
  transition: all 1.5s;
}
.main .main2 .part .part1 .title {
  line-height: 6.25rem;
  text-align: center;
  height: 6.25rem;
  background: #FFFEFE;
  font-size: 1.25rem;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0 5px;
  font-family: Calibri;
}
.main .main2 .part .part1:nth-child(3n) {
  margin-right: 0;
}
.main .main3 {
  background-image: url(../images/bg78.png);
  width: 100%;
  height: 53.75rem;
  background-size: cover;
  padding: 5.625rem 0 0;
  position: relative;
}
.main .main3 .tit {
  color: #fff;
  font-size: 2.25rem;
  text-align: center;
  margin-bottom: 3.9375rem;
  position: relative;
  font-weight: 600;
  font-family: Calibri;
}
.main .main3 .tit::after {
  position: absolute;
  content: '';
  width: 2.5rem;
  height: 4px;
  background: #B81927;
  left: calc(50% - 1.25rem);
  bottom: -1.875rem;
}
.main .main3 .desc {
  text-align: center;
  margin-bottom: 5.3125rem;
  color: #fff;
  font-size: 1.125rem;
  line-height:1.8;
  padding: 0 10rem;
  font-family: Calibri;

}
.main .main3 .part {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  position: absolute;
  bottom: 0;
  left: 15rem;
}
.main .main3 .part .part1 {
  display: flex;
  margin-right: 2.25rem;
}
.main .main3 .part .part1 .left {
  width: 1px;
  height: 24.875rem;
  background: rgba(255, 255, 255, 0.2);
  position: relative;
}
.main .main3 .part .part1 .left::after {
  position: absolute;
  top: -0.375rem;
  left: -0.275rem;
  width: 0.75rem;
  height: 0.75rem;
  background: #FFFFFF;
  border-radius: 50%;
  content: '';
}
.main .main3 .part .part1 .right {
  margin-left: 0.75rem;
  margin-top: 1.875rem;
  width: 10.875rem;
}
.main .main3 .part .part1 .right img {
  width: 6.875rem;
  height: 6.875rem;
  margin-bottom: 0.9375rem;
}
.main .main3 .part .part1 .right .title {
  font-size: 1rem;
  color: #fff;
  line-height:1.5;
  font-family: Calibri;
}
.main .main3 .part .part1:nth-child(2n) .left {
  height: 31.75rem;
}
.main .main4 {
  width: 100%;
  background-size: cover;
  padding: 5.625rem 15rem 5.625rem;
  background-color: #f4f4f4;
}
.main .main4 .tit {
  color: #333;
  font-size: 2.25rem;
  text-align: center;
  margin-bottom: 3.9375rem;
  position: relative;
  font-weight: 600;
  font-family: Calibri;
}
.main .main4 .tit::after {
  position: absolute;
  content: '';
  width: 2.5rem;
  height: 4px;
  background: #B81927;
  left: calc(50% - 1.25rem);
  bottom: -1.875rem;
}
.main .main4 .desc {
  text-align: center;
  margin-bottom: 5.3125rem;
  color: #333;
  font-size: 1.125rem;
  padding: 0 10rem;
  line-height: 1.8;
  font-family: Calibri;
}
.main .main4 .part .part1 {
  margin-bottom: 2.5rem;
  display: flex;
}
.main .main4 .part .part1 .left {
  width: 50%;
  background-color: #ffffff;
  padding: 9.375rem 4.375rem 2.5rem;
  box-sizing: border-box;
}
.main .main4 .part .part1 .left .tit1 {
  color: #333;
  font-size: 1.5rem;
  margin-bottom: 1.375rem;
  position: relative;
  font-weight: 600;
  font-family: Calibri;
}
.main .main4 .part .part1 .left .tit1::after {
  width: 10px;
  height: 10px;
  background: #B81927;
  position: absolute;
  content: '';
  left: 0;
  top: -3.0625rem;
}
.main .main4 .part .part1 .left .desc1 {
  font-size: 1.125rem;
  color: #666;
  line-height: 1.8;
  font-family: Calibri;
}
.main .main4 .part .part1 .right {
  width: 50%;
  overflow: hidden;
}
.main .main4 .part .part1 .right img {
  width: 100%;
  height: 100%;
  transition: all 1.5s;
}
.main .main4 .part .part1 .right:hover img {
  transform: scale(1.2);
  transition: all 1.5s;
}
.main .main5 {
  background-image: url(../images/bg88.png);
  width: 100%;
  min-height: 71.4375rem;
  background-size: cover;
  padding: 5.625rem 15rem;
}
.main .main5 .check {
  display: flex;
  justify-content: center;
  margin-bottom: 2.5rem;
}
.main .main5 .check .check1 {
  width: 13.75rem;
  height: 5.625rem;
  line-height: 5.625rem;
  text-align: center;
  color: #333;
  font-size: 1.25rem;
  font-weight: 600;
  border: 1px solid #DADADA;
  box-sizing: border-box;
  font-family: Calibri;
}
.main .main5 .check .active {
  background: #B81927;
  color: #fff;
  border: 1px solid #B81927;
}
.main .main5 .desc {
  text-align: center;
  margin-bottom: 5rem;
  color: #333;
  font-size: 1.125rem;
  line-height:1.8;
  padding: 0 10rem;
  font-family: Calibri;

}
.main .main5 .part {
  display: flex;
  flex-wrap: wrap;
}
.main .main5 .part .part1 {
  width: 16.5rem;
  min-height: 22rem;
  background: #FFFFFF;
  padding: 1.3125rem 1.375rem;
  position: relative;
  margin-right: 1.5rem;
  margin-bottom: 1.875rem;
}
.main .main5 .part .part1 .tit{
  font-size: 0.875rem;
  color: #333;
  text-align: center;
  font-family: Calibri;
}
.main .main5 .part .part1 .pic {
  width: 100%;
  height: auto;
  margin-bottom: 10px;
}
.main .main5 .part .part1 .mask {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background-color: rgba(0, 0, 0, 0.6);
}
.main .main5 .part .part1:hover .mask {
  display:none;
}
.main .main5 .part .part1 .mask img {
  width: 1.75rem;
  height: 1.75rem;
}
.main .main5 .part .part1 .mask a {
  color: #fff;
  font-size: 1rem;
  margin-top: 1.5625rem;
  font-family: Calibri;
}
.main .main5 .part .part1:nth-child(5n) {
  margin-right: 0;
}
/* .main .main5 .part .part1:hover .mask {
  display: flex;
} */
.main .big {
  width: 100%;
  height: 100vh;
  position: fixed;
  display: none;
  top: 0;
  left: 0;
}
.main .big .mask1 {
  position: fixed;
  left: 0;
  top: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 233;
  width: 100%;
  height: 100%;
}
.main .big img {
  max-height: 80vh;
  margin: 10rem auto 0;
  display: block;
  z-index: 22222;
  position: absolute;
  left: 10%;
  object-fit: contain;
  width: 80%;
}
@media (max-width: 850px) {

  .main .main3 .part {
    left: 5%;
  }
  .main .main3 .part .part1 {
    margin-right: 3rem;
    width: 100%;
  }
  .main .main3 .part .part1 .right .title {
    font-size: 13px;
    color: #fff;
  }
  .main .main3 .part .part1 .right {
    width: auto;
  }
  .main .main3 .desc {
    padding: 0 10%;
    font-size: 14px;
  }
  .main .main3 .tit {
    color: #fff;
    font-size: 22px;
  }
  .main .main1 {
    padding: 30px 0 0 5%;
    height: auto;
    min-height: 70rem;
    align-items: flex-start;
  }
  .main .main1 .right .right1 .right2 .title {
    font-size: 16px;
    color: #333;
    line-height: 2;
  }
  .main .main1 .right .right1 .right2 .desc {
    font-size: 14px;
    color: #666666;
    line-height: 1;
  }
  .main .main1 .left .tit {
    color: #333;
    font-size: 22px;
  }
  .main .main1 .left {
    margin-right: 10px;
  }
  .main .main1 .left .desc {
    font-size: 14px;
    color: #333;
    margin-bottom: 2.1875rem;
    line-height: 1.5;
  }
  .main .main2 .tit {
    color: #333;
    font-size: 22px;
  }
  .main .main2 .desc {
    font-size: 14px;
  }
  .main .main2 {
    width: 100%;
    padding: 30px 5%;
  }
  .main .main2 .part .part1 {
    width: 51.75rem;
    height: auto;
    margin-bottom: 15px;
  }
  .main .main2 .part .part1 .top {
    width: 49.25rem;
    height: 37.5rem;
  }
  .main .main2 .part .part1 .title {
    line-height: 40px;
    text-align: center;
    height: 40px;
    background: #FFFEFE;
    font-size: 14px;
  }
  .main .main4 .tit {
    color: #333;
    font-size: 22px;
  }
  .main .main4 {
    padding: 30px 5%;
  }
  .main .main4 .desc {
    font-size: 14px;
  }
  .main .main5 {
    min-height: 71.4375rem;
    height: auto;
    padding: 30px 5%;
  }
  .main .main5 .check .check1 {
    width: auto;
    height: 40px;
    line-height: 40px;
    font-size: 14px;
    padding: 0 10px;
  }
  .main .main4 .part .part1 .left .tit1 {
    color: #333;
    font-size: 16px;
  }
  .main .main4 .part .part1 .left .desc1 {
    font-size: 14px;
  }
  .main .main5 .desc {
    font-size: 14px;
  }
  .main .main5 .part .part1 {
    width: 48%;
    height: auto;
    background: #FFFFFF;
    padding: 10px;
    position: relative;
    margin-right: 2%;
    margin-bottom: 20px;
  }
  .main .main5 .part .part1 .mask div {
    color: #fff;
    font-size: 16px;
  }
}
@media (max-width: 600px) {
  .main{
    padding-top: 16rem;
  }
  .main .main1 {
    flex-wrap: wrap;
    padding: 30px 5%;
  }
  .main .main1 .left {
    margin-right: 0;
    width: 100%;
  }
  .main .main1 .right {
    width: 100%;
  }
  .main .main1 .left img {
    width: 100%;
    margin-bottom: 20px;
  }
  .main .main1 .right .bg {
    width: 100%;
    height: auto;
  }
  .main .main1 .right .right1 {
    position: initial;
    margin-bottom: 10px;
  }
  .main .main1 .right .right1 img {
    width: 30px;
    height: 30px;
    margin-right: 10px;
  }
  .main .main3 {
    min-height: 53.75rem;
    height: auto;
  }
  .main .main3 .part {
    flex-wrap: wrap;
  }
  .main .main3 .part {
    position: initial;
    justify-content: flex-start;
    padding: 0 5%;
  }
  .main .main3 .part .part1:nth-child(2n) .left {
    height: 24.875rem;
  }
  .main .main3 .part .part1 .right img {
    width: 40px;
    height: 40px;
    margin-bottom: 0;
    
    margin-right: 10px;

  }
  .main .main3 .part .part1 .right {
    padding-bottom: 20px;
    display: flex;
    align-items: center;
  }
  .main .main3 .part .part1 .right {

  }
  .main .main4 .part .part1 .right,
  .main .main4 .part .part1 .left {
    width: 100%;
  }
  .main .main4 .part .part1 {
    flex-wrap: wrap;
  }
  .main .main4 .part .part1 .left .tit1::after {
    display: none;
  }
  .main .main1 .right .bg img {
    position: absolute;
    left: calc(50% - 25px);
    top: calc(50% - 25px);
    width: 50px;
    z-index: 6;
}
.video-mask video {
  width: 90vw;
  height: auto;
  margin: 500px 5vw 0;
  position: absolute;
  z-index: 333;
}
.main .main1 .right .right1 .right2 .desc {
  font-size: 14px;
  color: #666666;
  line-height: 1.5;
}
.main .main5 .part .part1 .mask a {
  color: #fff;
  font-size: 16px;
}
.main .main2 .part .part1 {
  width: 100%;
  height: auto;
  margin-bottom: 15px;
  padding: 0;
}
.main .main2 .part .part1 .top {
  width: 100%;
  height: 82rem;
}
.main .main2 .part .part1 .title {
  background: #F2F2F2;
}
.main .main3 .part .part1 .left {
  width: 1px;
  height: auto;

}
.main .main3 .part .part1:nth-child(2n) .left {
  height: auto;
}
.main .main1 .left .tit::after {

  width: 26px;

}
.main .main2 .tit::after {
  width: 26px;
  left: calc(50% - 13px);
}
.main .main3 .tit::after {
  width: 26px;
  left: calc(50% - 13px);
}
.main .main4 .tit::after {
  width: 26px;
  left: calc(50% - 13px);
}

.main .main1 .left .desc {

  line-height: 2;
}

.main .main2 .desc {
  padding: 0;
  line-height: 2;
}
.main .main3 .desc {
  padding: 0 5%;
  font-size: 14px;
  line-height: 2;
}
.main .main4 .desc {
  padding: 0;
  line-height: 2;
}
.main .main5 .desc {
  font-size: 14px;
  line-height: 2;
  padding: 0;
}


}