.derun-whoweare {
  position: relative;
  background-repeat: no-repeat;
  background-position: center top;
  background-size: cover;
  background-color: #E4E4E4;
//  margin-bottom: 200px;
  background-size: 100% auto !important;
}

.derun-whoweare .tit {
  padding: 200px 0 150px;
  text-align: left;
}

.derun-whoweare .tit h3 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: #eb1b3d;

  position: relative;
  margin: 30px 0;
}

.derun-whoweare .tit h5 {
  font-size: 60px;
  line-height: 1;
  color: black;
  font-weight: bold;
}

.derun-whoweare .tit p {
  font-size: 24px;
  color: #221f20;
  line-height: 1.3;
  margin: 10px auto 0;
}

.derun-whoweare .v {
  position: relative;
  bottom: 0px;
  width: 100%;
  display: block;
  border-radius: 10px;
  overflow: hidden;
}

.derun-whoweare .v img {
  width: 100%;
  object-fit: cover;
  transition: all 0.3s ease 0s;
  -webkit-transition: all 0.3s ease 0s;
}

.derun-whoweare .v .play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  color: white;
  background:url("https://okki-shop.oss-cn-hangzhou.aliyuncs.com/349/upload/ad2/46c5fe683a866e4d7bb3b8df1b7b5563c77405eed842f95583fa9b385c5f7463.webp")no-repeat center;
}
.derun-whoweare .v .play-btn::before {
  position: absolute;
  content: '';
  width: 100%;
  height: 100%;
  border-radius: 50%;
  top: 0;
  animation-fill-mode: both;
  animation: witr_squares 1.5s ease-in-out infinite;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--btn-bg);
}
@keyframes witr_squares{
	0%{transform:scale(1);opacity:0}
	20%{transform:scale(1.24);opacity:0.8}
	100%{transform:scale(2.1);opacity:0}
}

.derun-whoweare .v .play-btn i {
  position: absolute;
  left: 50%;
  top: 50%;
  font-size: 40px;
  color: #fff;
  transform: translateX(-50%) translateY(-50%);
}

.derun-whoweare .v:hover img {
  transform: scale(1.02);
  -webkit-transform: scale(1.02);
}

.derun-whoweare .v:hover .play-btn {
  color: var(--link-color-hover);
}

.derun-whoweare .v:hover::after {
  background-color: rgba(0, 0, 0, 0.1);
}



@media screen and (max-width:1550px) {
  .derun-whoweare {
    margin-bottom: 150px;
  }
  .derun-whoweare .tit {
	padding: 100px 0 75px;
  }

  .derun-whoweare .tit h3 {
    font-size: 50px;
  }

  .derun-whoweare .v {
    bottom: -150px;
  }
  
  .derun-whoweare .tit img {
	height: 93px;
	display: block;
  }
  
}

@media screen and (max-width:1280px) {
  .derun-whoweare {
    margin-bottom: 100px;
  }

  .derun-whoweare .v {
    bottom: -120px;
  }

  .derun-whoweare .tit h3 {
    font-size: 40px;
  }

  .derun-whoweare .tit h5 {
    font-size: 30px;
  }


  .derun-whoweare .tit p {
    font-size: 20px;
  }

  .derun-whoweare .tit ul li h6 {
    font-size: 16px;
  }

  .derun-whoweare .tit ul li img {
    max-height: 40px;
  }

  .derun-whoweare .tit ul li a {
    width: 80px;
    height: 80px;
    margin: 0 auto;
  }

  .derun-whoweare .tit .more {
    margin: 20px 0 0;
    width: 190px;
    height: 34px;
    line-height: 34px;
    font-size: 15px;
  }
   .derun-whoweare .tit img {
	height: 83px;
   }
}

@media screen and (max-width:992px) {
  .derun-whoweare {
    display: block;
    margin-bottom: 0;
    padding-bottom: 30px;
  }

  .derun-whoweare::before {
    display: none;
  }

  .derun-whoweare .tit{
    width: 100%;
    text-align: center;
    padding: 80px 5% 80px;
  }
  .derun-whoweare .tit h3 {
	top: 0;
   }

  .derun-whoweare .tit h5 {
    margin: 10px 0 0;
  }

  .derun-whoweare .tit p {
    font-size: 18px;
  }

  .derun-whoweare .pic {
    width: 100%;
    margin-top: 20px;
  }

  .derun-whoweare .v {
    bottom: auto;
  }
    .derun-whoweare .tit img {
  	height:60px;
    display: block;
    margin: 0 auto;
  }
}

@media screen and (max-width:768px) {
  .derun-whoweare .tit h3 {
    font-size: 30px;
  }
  .derun-whoweare .tit h5 {
    font-size: 20px;
  }
  .derun-whoweare .tit p {
    font-size: 16px;
  }
  .derun-whoweare .v .play-btn i{
    font-size: 30px;
  }
  .derun-whoweare .v .play-btn {
	width: 64px;
	height: 72px;
	background-size: 100% auto !important;
   }
}

@media screen and (max-width:480px) {
  .derun-whoweare .tit h3 {
    font-size: 24px;
  }
  .derun-whoweare .tit img {
  	height:45px;
  }
  .derun-whoweare .tit h5 {
    font-size: 18px;
  }
  .derun-whoweare .tit {
	padding: 40px 5% 50px;
}
}