.title-qrc {
      width: 104px;
      height: 104px;
      position: absolute;
      background: #ffffff;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      display: none;
    }
.bottom-right {
      width: 375px;
      height: 100%;
      background: #fff;
    }
* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
.top-left {
      height: 100%;
    }
.content {
      width: 100%;
      max-width: 1200px;
      padding: 24px 0;
      margin: 0 auto;
    }
.box-cover {
      width: 100%;
      height: 100%;
      animation-name: breath;
      animation-duration: 7.5s;
      animation-iteration-count: infinite;
    }
.pc-video video {
      width: 100%;
      height: 100%;
    }
.box {
      width: 100%;
      
      background-image: url(//p4.img.cctvpic.com/photoAlbum/templet/common/DEPA1727419455660370/pc-bg.jpg);
      background-size: 100% 100%;
      background-repeat: no-repeat;
      background-position: center;
    }
.title-right:hover span {
      opacity: 0.4;
    }
.bottom-left {
      flex: 1;
      max-width: 800px;
      height: 100%;
      margin-right: 25px;
      background: #1a1a1acc;
    }
.nav_wrapper {
      width: 100%;
    }
.top {
      width: 100%;
      height: 90px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0 20px;
    }
.top-right {
      height: 48px;
    }
.title-right span {
      opacity: 1;
    }
@keyframes breath {
      0% {
        background: #00000055;
      }
      50% {
        background: #000000aa;
      }
      100% {
        background: #00000055;
      }
    }
.title-right:hover .title-qrc {
      display: block;
    }
.pc-text {
      width: 100%;
      font-size: 14px;
      font-weight: 400;
      line-height: 32px;
      text-align: justify;
      opacity: 0.8;
      color: #ffffff;
      margin-top: 20px;
    }
.title-left {
      font-size: 20px;
      font-weight: 600;
      color: #fff;
      padding-left: 17px;
      position: relative;
    }
.title-right {
      width: 136px;
      font-size: 14px;
      font-weight: 400;
      color: #ffffff;
      
      display: flex;
      justify-content: space-between;
      align-items: center;
      position: relative;
      cursor: pointer;
    }
.title-left::before {
      content: "";
      position: absolute;
      left: 0;
      top: 2px;
      width: 5px;
      height: 24px;
      background: #c01e13;
    }
.title-qrc img {
      width: 100%;
      height: 100%;
    }
.pc-video {
      width: 100%;
      height: 450px;
      background: #1a1a1a;
    }
.title-right > img {
      height: 18px;
      margin-right: 6px;
      opacity: 1;
    }
.title-right:hover > img {
      opacity: 0.4;
    }
.bottom {
      width: 100%;
      height: 680px;
      display: flex;
      justify-content: space-between;
      margin-top: 32px;
    }
.pc-title {
      width: 100%;
      height: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
.bottom-right iframe {
      width: 100%;
      height: 100%;
    }
.pc-info {
      width: 100%;
      padding: 24px 20px;
    }