body {
  margin: 0;
  padding: 0;

}

img {
  width: 100%;
  height: auto;

}

a {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  margin: 0;
  padding: 0;
}

p {
  word-wrap: break-word;
  /* 允许在单词内部断行 */
  overflow-wrap: break-word;
  /* 对非标准浏览器提供兼容支持 */
}

video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.index-web {
  width: 100%;
}

.main-index {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.main {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.main-title {
  font-size: 52px;
  font-family: Microsoft YaHei, Microsoft YaHei-Bold;
  font-weight: 700;
  text-align: center;
  color: #000000;
  line-height: 113px;
  margin-top: 65px;
}

.icon-nav {
  display: flex;
  justify-content: center;
  gap: 9.375rem;
  margin-top: 86px;
  flex-wrap: wrap;

}

.nav-detail {
  max-width: 134px;
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

.nav-detail .icon {
  max-width: 134px;
  width: 100%;
  height: auto;
}

.nav-detail .icon-title {
  font-size: 20px;
  font-family: Microsoft YaHei, Microsoft YaHei-Regular;
  font-weight: 400;
  text-align: center;
  color: #000000;
}

.main-one {
  width: 100%;
  height: auto;
  padding-top: 100px;
  position: relative;
}

.one-back {
  position: absolute;
  top: 35%;
  left: 30%;
  z-index: -10;
  width: 504px;
  height: 499px;

}

.main-one-details {
  display: flex;
  width: 100%;
  flex-wrap: wrap;
  gap: 1.92rem;
  justify-content: center;
  align-items: center;
  z-index: 1;
  margin-top: 127px;
}

.main-one-details .one-pic {
  max-width: 630px;
  width: 100%;
  height: auto;
}

.main-one .intro-title {
  font-size: 42px;
  font-family: Microsoft YaHei, Microsoft YaHei-Bold;
  font-weight: 700;
  text-align: left;
  color: #000000;
  line-height: 60px;
}

.main-one .intro-text {
  max-width: 752px;
  width: 100%;
  height: auto;
  font-size: 20px;
  font-family: Microsoft YaHei, Microsoft YaHei-Light;
  font-weight: 300;
  text-align: left;
  color: #646464;
  line-height: 50px;
  margin-top: 36px;
}


.main-two {
  width: 100%;
  margin-top: 220px;
  padding-top: 160px;
  padding-bottom: 160px;
  background: url(../images/Main/main2.png);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.main-two-details {
  display: flex;
  width: 100%;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2.1875rem;
}


.main-two .intro-title {
  height: 55px;
  font-size: 42px;
  font-family: Microsoft YaHei, Microsoft YaHei-Bold;
  font-weight: 700;
  text-align: right;
  color: #000000;
  line-height: 60px;
}

.main-two .intro-text {
  max-width: 752px;
  width: 100%;
  font-size: 20px;
  font-family: Microsoft YaHei, Microsoft YaHei-Light;
  font-weight: 300;
  text-align: right;
  color: #646464;
  line-height: 50px;
  padding-top: 36px;

}

.main-two .two-pic {
  max-width: 630px;
  width: 100%;
  height: auto;
  padding-top: 0;

}

.main-three {
  width: 100%;
  height: auto;
  padding-top: 120px;
  padding-bottom: 200px;
  position: relative;
}

.three-back {
  width: 504px;
  height: 499px;
  position: absolute;
  top: 15%;
  left: 30%;
  z-index: -50;
}

.main-three-details {
  display: flex;
  justify-content: center;
  gap: 1.9375rem;
  flex-wrap: wrap;
}

.main-three .three-pic {
  max-width: 630px;
  width: 100%;
  height: auto;
  margin-top: 19.75px;
}

.main-three .intro {
  height: 100%;
  width: 752px;
}

.main-three .intro-title {
  max-width: 604px;
  width: 100%;
  height: auto;
  font-size: 42px;
  font-family: Microsoft YaHei, Microsoft YaHei-Bold;
  font-weight: 700;
  text-align: left;
  color: #000000;
  line-height: 60px;
  margin-top: 62.85px;
}

.main-three .intro-text {
  max-width: 752px;
  width: 100%;
  height: auto;
  font-size: 20px;
  font-family: Microsoft YaHei, Microsoft YaHei-Light;
  font-weight: 300;
  text-align: left;
  color: #646464;
  line-height: 50px;
  margin-top: 36px;
}

.main-four {
  width: 100%;
  height: auto;
  background: linear-gradient(to bottom, #fff 50%, #f8f8f8 50%);
  background-image: url(../images/Main/蒙版组\ 29.png);
  padding-top: 200.04px;
  background-size: cover;
  background-position: center;
  padding-bottom: 200px;
  position: relative;

  background-blend-mode: multiply;

}

.four-back {
  width: 100%;
  height: auto;
  position: absolute;
  bottom: -50px;
  left: 0;
  z-index: -300;
}

.four-details {
  width: 100%;
  align-self: start;
  height: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 25%;
  justify-content: center;
}

.four-left {
  width: 30.1%;
  font-size: 18px;
  font-family: Microsoft YaHei, Microsoft YaHei-Regular;
  font-weight: 400;
  text-align: left;
  color: #ffffff;
  line-height: 34px;
}

.four-right {
  display: flex;
  flex-direction: column;

}

.main-four .right-box {
  display: flex;
  flex-direction: column;
  margin-top: 45px;
  align-items: start;
}

.main-four .right-box:first-child {
  margin-top: 0rem;
}

.right-box-one {
  margin: 0;
}

.right-title-one {
  display: flex;
  height: 85px;
  line-height: 85px;
  font-size: 4rem;
  font-family: Microsoft YaHei, Microsoft YaHei-Bold;
  font-weight: 700;
  text-align: center;
  color: #ffffff;
}

.main-four .right-title {
  height: 85px;
  font-size: 4rem;
  font-family: Microsoft YaHei, Microsoft YaHei-Bold;
  font-weight: 700;
  text-align: center;
  color: #ffffff;
}

.main-four .right-text {
  height: 21px;
  font-size: 16px;
  font-family: Microsoft YaHei, Microsoft YaHei-Regular;
  font-weight: 400;
  text-align: left;
  color: #ffffff;
  margin-top: 9px;
}

.main-five {
  width: 100%;
  padding-top: 170px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #f8f8f8;
  padding-bottom: 111px;

}

.main-five-details {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.five-title {
  font-size: 34px;
  font-family: Microsoft YaHei, Microsoft YaHei-Bold;
  font-weight: 700;
  text-align: center;
  color: #000000;
  line-height: 70px;
}

.five-text {
  max-width: 1025px;
  width: 100%;
  height: auto;
  font-size: 16px;
  font-family: Microsoft YaHei, Microsoft YaHei-Light;
  font-weight: 300;
  text-align: center;
  color: #787878;
  line-height: 40px;
  margin-top: 33px;
  padding-bottom: 50px;
}

.five-video {
  width: 90%;
  height: auto;
}

.main-six {

  background-color: #f8f8f8;
  background-image: url(../images/Main/main6.png);
  background-size: cover;
  background-position: center;
  overflow: hidden;
  width: 100%;
  height: auto;
  padding-bottom: 140px;
  padding-top: 100px;
  position: relative;

}

.six-back {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: auto;
  z-index: 2;
}

.six-details {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
  height: auto;
  gap: 50px;
  z-index: 3;

}

.six-left {
  width: 30%;
  height: auto;
  z-index: 3;

}

.six-right {
  position: relative;

  width: 37.97%;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: start;
}

.six-right img {
  width: 189px;
  z-index: 2;
}

.six-title {

  height: 31px;
  font-size: 24px;
  font-family: Microsoft YaHei, Microsoft YaHei-Bold;
  font-weight: 700;
  text-align: center;
  color: #000000;
  line-height: 34px;
}

.six-text {
  width: 100%;
  height: auto;
  font-size: 16px;
  font-family: Microsoft YaHei, Microsoft YaHei-Regular;
  font-weight: 400;
  text-align: left;
  color: #9e9e9e;
  line-height: 38px;
  margin-top: 33px;
}

.main-six .content {
  display: flex;
  height: auto;
  flex-direction: column;
  align-items: start;
  z-index: 5;
}



.nav-detail:hover {
  transform: scale(1.1);
}

/* 添加淡入效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.animate-class-1,
.animate-class-2,
.animate-class-3,
/* .animate-class-4, */
.animate-class-5,
/* .animate-class-6, */
.animate-class-7 {
  animation: fadeIn 1.5s ease-in-out forwards;
}

/* 定义一个名为slide-in的关键帧动画 */
@keyframes slide-in {
  0% {
    transform: translateX(-100%);
    /* 动画开始时，将元素移出左侧边界 */
  }

  100% {
    transform: translateX(0);
    /* 动画结束时，将元素移回原来的位置 */
  }
}

.sidebar {

  animation: slide-in 2s ease-in-out forwards;
  /* 应用自定义动画 */
}

.six-left img {
  transition: transform 0.3s ease;
}

.six-left img:hover {
  transform: scale(1.1);
}

.six-left-out {
  max-width: 850px;
  width: 100%;
  height: 558px;
  overflow: hidden;
  z-index: 3;
}

/* main-four 滑动 */
.four-details-two {
  max-width: 729px;
  width: 100%;
  padding: 1.875rem;
  margin-left: 45%;
  display: flex;
  flex-direction: column;
  align-items: start;
  gap: 2.0625rem;

}

.four-two-title {
  font-size: 24px;
  font-family: Microsoft YaHei, Microsoft YaHei-Bold;
  font-weight: 700;
  text-align: left;
  color: #ffffff;
  line-height: 34px;
}

.four-two-text {

  width: 100%;
  height: auto;
  font-size: 16px;
  font-family: Microsoft YaHei, Microsoft YaHei-Regular;
  font-weight: 400;
  text-align: left;
  color: #e2e2e2;
  line-height: 38px;
}

.four-two-text p {
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.main-four {
  position: relative;
  height: 120vh;
  width: 100%;
  overflow: hidden;
}



.four-details {
  position: absolute;
  top: 120px;
  left: 0;
  width: 100%;

  opacity: 0;
  transform: translateY(100%);
  transition: transform 0.8s ease, opacity 0.8s ease;
  z-index: 2;
}

.four-details.active {
  opacity: 1;
  transform: translateY(0);
  z-index: 3;
}

.four-details.hide {
  transform: translateY(-100%);
  opacity: 0;
}

/* main-six滑动 */

.main-six {
  position: relative;
  height: 120vh;
  width: 100%;
  overflow: hidden;
}



.six-details {
  height: auto;
  position: absolute;
  top: 170px;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.875rem;

  opacity: 0;
  transform: translateY(100%);
  transition: transform 0.8s ease, opacity 0.8s ease;
  z-index: 2;
}

.six-details.active {
  opacity: 1;
  transform: translateY(0);
  z-index: 3;
}

.six-details.hide {
  transform: translateY(-100%);
  opacity: 0;
}

.six-left-out {
  width: 45%;
  height: auto;
  overflow: hidden;
}

.six-left {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.5s ease;
}