body {
  background: url(/img/project/bg.jpg) no-repeat #fff fixed;
  background-size: 100%;
}
.moview-container {
  margin: 106px auto 0;
  text-align: center;
}
.moview-banner-title {
  padding-top: 120px;
}
.project-select {
  margin: 66px auto 0;
  width: 222px;
  position: relative;
}
.project-select:hover .project-select-text img {
  transform: rotate(180deg);
}
.project-select-text,
.project-select-content li {
  width: 100%;
  height: 56px;
  line-height: 56px;
  background-color: #FFF;
  border: 1px solid #B5B5B5;
  box-sizing: border-box;
}
.project-select-text span {
  font-size: 20px;
  font-weight: bold;
  letter-spacing: .6px;
}
.project-select-text img {
  width: 18px;
  vertical-align: middle;
  margin: 0 0 4px 16px;
  transform: rotate(0deg);
  transition: transform .3s;
}
.project-select-content {
  display: none;
  width: 100%;
  position: absolute;
  z-index: 2;
}
.project-select-content li {
  font-weight: bold;
  letter-spacing: .6px;
  font-size: 20px;
  cursor: pointer;
}
.project-select-content li.active {
  color: var(--active-color);
}
.project-container {
  margin: 0 auto;
  min-height: 230px;
}
.project-case-content {
  display: none;
}
.project-case-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}
.project-case-list i {
  flex-basis: 456px;
  margin: 0 22px;
}
.project-case-item {
  width: 456px;
  text-align: left;
  color: #FFF;
  position: relative;
  margin: 0 22px;
}
.project-case-item a {
  display: block;
  position: relative;
}
.project-case-item:nth-child(even) {
  margin-top: 50px;
}
.project-case-item:nth-child(1) {
  padding-top: 66px;
}
.project-case-item:nth-child(2) {
  margin-top: 116px;
}
.project-case-thumb {
  width: 100%;
  height: 266px;
  object-fit: cover;
  box-shadow: 3px 5px 7px 2px rgb(0 0 0 / 50%);
}
.project-case-play {
  width: 143px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.case-item-title {
  font-size: 20px;
  line-height: 32px;
  margin-top: 20px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  letter-spacing: .6px;
}
.case-item-desc {
  font-size: 16px;
  line-height: 30px;
  margin-top: 4px;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow:hidden;
}

.moview-footer {
  margin-top: 160px;
}
.moview-footer-pic {
  display: none;
}
.moview-footer-top .moview-mask-70 {
  background-color: rgba(0, 0, 0, .5);
}

@media screen and (min-width: 1441px) {
  .project-case-list {
    max-width: var(--max-width-1400);
    margin: 0 auto;
  }
  .project-case-item {
    width: 570px;
    margin: 0 28px;
  }
  .project-case-thumb {
    height: 330px;
  }
  .project-case-play {
    width: 170px;
  }
  .project-case-list i {
    flex-basis: 570px;
  }
}

@media screen and (min-width: 1069px) and (max-width: 1440px) {}

@media screen and (min-width: 735px) and (max-width: 1068px) {
  .project-case-item {
    width: 428px;
  }
  .project-case-thumb {
    height: 249px;
  }
  .project-case-play {
    width: 136px;
  }
  .project-case-list i {
    flex-basis: 428px;
  }
}

@media screen and (min-width: 0px) and (max-width: 734px) {
  body {
    background-size: cover;
    background-position: center center;
  }
  .moview-container {
    margin-top: 54px;
  }
  .moview-banner-title {
    padding-top: 62px;
  }
  .project-select {
    margin-top: 34px;
    width: 112px;
  }
  .project-select-text, .project-select-content li {
    height: 28px;
    line-height: 26px;
  }
  .project-select-text span {
    font-size: 12px;
  }
  .project-select-text img {
    width: 10px;
    margin: 0 0 0 8px;
  }
  .project-select-content li {
    font-size: 12px;
  }
  .project-case-list {
    padding: 0 40px;
  }
  .project-case-list i {
    flex-basis: 100%;
  }
  .project-case-item {
    width: 100%;
    margin: 32px 0 0;
  }
  .project-case-item:nth-child(1) {
    padding-top: 0;
    margin-top: 38px;
  }
  .project-case-item:nth-child(2),
  .project-case-item:nth-child(even) {
    margin-top: 32px;
  }
  .project-case-thumb {
    height: 173.32px;
  }
  .project-case-play {
    width: 90px;
  }
  .case-item-title {
    font-size: 14px;
    margin-top: 8px;
  }
  .case-item-desc {
    font-size: 12px;
    line-height: 24px;
  }
  .moview-footer {
    margin-top: 64px;
  }
}