@keyframes arrowAnimate {
  0 {
    background-image: url(../img/join_btn_arrow_1.png);
  }
  33% {
    background-image: url(../img/join_btn_arrow_2.png);
  }
  66% {
    background-image: url(../img/join_btn_arrow_3.png);
  }
  100% {
    background-image: url(../img/join_btn_arrow_1.png);
  }
}
@keyframes arrowAnimate2 {
  0 {
    background-image: url(../img/join_btn_arrow_4.png);
  }
  33% {
    background-image: url(../img/join_btn_arrow_5.png);
  }
  66% {
    background-image: url(../img/join_btn_arrow_6.png);
  }
  100% {
    background-image: url(../img/join_btn_arrow_4.png);
  }
}
.join-banner img {
  width: 100%;
}
.join-container {
  width: 1200px;
  margin: 0 auto;
}
.join-container .join-title {
  display: flex;
  width: 272px;
  height: 52px;
  margin: 0 auto;
  margin-top: 70px;
}
.join-container .join-title .left_box {
  width: 239px;
  height: 52px;
  background-color: #1e98c5;
  line-height: 52px;
  text-align: center;
  font-size: 22px;
  color: #fff;
}
.join-container .join-title .right_box {
  width: 24px;
  height: 52px;
  background-color: #1e98c5;
  margin-left: 10px;
}
.welfare {
  margin-top: 26px;
}
.welfare ul {
  display: flex;
  justify-content: space-around;
}
.welfare ul li {
  list-style: none;
}
.pic-list {
  display: flex;
  justify-content: center;
  margin-top: 45px;
}
.pic-list .pic-item {
  margin-left: 5px;
  padding: 20px;
  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
}
.pic-list .pic-item .img-wrapper {
  width: 353px;
  overflow: hidden;
}
.pic-list .pic-item img {
  width: 100%;
  transition: transform 0.4s;
}
.pic-list .pic-item .pic-title {
  margin-top: 15px;
  width: 100%;
  text-align: center;
  font-size: 16px;
}
.pic-list .pic-item:hover img {
  transform: scale(1.1);
}
.join-btn {
  padding: 95px 0 120px;
}
.join-btn a {
  position: relative;
  color: transparent;
  display: block;
  width: 410px;
  height: 149px;
  margin: 0 auto;
  background: url(../img/join_btn.png);
}
.join-btn a::after {
  content: '';
  position: absolute;
  top: 50px;
  right: 46px;
  width: 79px;
  height: 46px;
  background: url(../img/join_btn_arrow_1.png) no-repeat center / 100%;
  animation: arrowAnimate 1.5s linear infinite;
}
.join-btn a:hover {
  background-image: url(../img/join_btn_selected.png);
}
.join-btn a:hover::after {
  background: url(../img/join_btn_arrow_4.png) no-repeat center / 100%;
  animation: arrowAnimate2 1.5s linear infinite;
}