.main-container {
  margin-bottom: 0;
}

.introduceSection>div:last-child {
  background: url(./../images/\incrtelife/title_incrtelife.png) no-repeat center / 600px 600px;
}

.introduceSection2 {
  margin-bottom: 128px;
}

.introduceSection2>.sub-title {
  font-size: 24px;
  margin: 0;
  font-weight: bold;
  opacity: .6;
}

.introduceSection2 .waterfall {
  margin: -10px;
  transition: all .3s;
}


.gallery {
  position: fixed;
  z-index: 1000;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(0, 0, 0, .6);
  animation: galleryShow .2s;
  color: #fff;
  font-weight: bold;
  width: 100%;
  height: 100%;
}

.gallery .pic-wrap {
  height: 100vh;
  flex: 1 0 100vw;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.gallery .gallery-imgs {
  display: flex;
  transition: all .3s;
  touch-action: none;
}

.gallery .gallery-imgs .pic-img {
  max-height: 95%;
  max-width: 95%;
}

.gallery .gallery-imgs .video-frame-wrap {
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.gallery .gallery-imgs iframe {
  width: 80%;
  height: 80%;
}

.gallery .before-btn {
  position: fixed;
  top: 50%;
  left: 0;
  width: 40px;
  height: 40px;
  background-color: rgba(0, 0, 0);
  transform: translateY(-50%);
  font-size: 27px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 1000;
  font-weight: normal;
}
.gallery .before-btn > div {
  transform: rotate(180deg);
  line-height: 1.15;
  transform: rotate(180deg) translateY(-2px);
}

.gallery .after-btn {
  position: fixed;
  top: 50%;
  right: 0;
  width: 40px;
  height: 40px;
  background-color: rgba(0, 0, 0);
  transform: translateY(-50%);
  font-size: 27px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 1000;
  font-weight: normal;
  line-height: 1.15;
}

.gallery .close {
  position: fixed;
  right: 0;
  top: 0;
  width: 43px;
  height: 43px;
  background-color: #000;
  font-size: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 1000;
}

.gallery.hide {
  display: none;
}

.waterfall.hide {
  visibility: hidden;
}


.introduceSection2 .waterfall::after {
  content: '';
  display: block;
  clear: both;
}

.introduceSection2 .waterfall .card {
  padding: 16px;
  border-radius: 12px;
  box-shadow: 1px 0px 8px #1A234E1A;
  float: left;
  width: calc((100% / 3) - 50px);
  box-sizing: border-box;
  margin: 10px;

}

.introduceSection2 .waterfall .card.slide-effect {
  animation: slideAnimation .3s;
}


.introduceSection2 .waterfall .card img {
  width: 100%;
  border-radius: 12px;
}

.introduceSection2 .waterfall .card .video-preview {
  overflow: hidden;
}

.introduceSection2 .waterfall .card video {
  height: 100%;
  width: 100%;
  border-radius: 12px;
}

.introduceSection2 .waterfall .card:hover {
  cursor: pointer;
}

.introduceSection2 .waterfall .card>.title {
  font-size: var(--base-font-lg-size);
  color: #0E4EFF;
  font-weight: bold;
  margin: 16px 0 8px 0;
}

.introduceSection2 .waterfall .card>.description {
  margin: 0;
  color: #000;
}

.introduceSection2 .waterfall .card>.time {
  color: #8E8D8D;
  margin: 18px 0 0;
  font-size: 15px;
  display: flex;
  align-items: center;
}

.introduceSection2 .waterfall .card>.time i {
  margin-right: 8px;
}


.load-card {
  width: 64px;
  height: 64px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%);
  background: url(./../images/preloader.svg) center / 64px no-repeat;
}

@media screen and (max-width: 1280px) {
  .introduceSection2 .waterfall .card {
    width: calc((100% / 2) - 20px);
  }
}

@media screen and (max-width: 760px) {
  .introduceSection2 .waterfall .card {
    width: calc(100% - 20px);
  }
}

@keyframes galleryShow {
  0% {
    opacity: 0;
  }

  100% {
    opacity: 1;
  }
}

@keyframes slideAnimation {
  0% {
    transform: translateY(200px);
  }

  100% {
    transform: translateY(0px);
  }
}