* {
  margin: 0;
  padding: 0;
}
body {
  background-color: #f9f9f9;
}
#popup-video {
  display: none;
  position: fixed;
  top: 50% !important;
  left: 50% !important;
  transform: translate(-50%, -50%) !important;
}
.head {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  height: 66px;
  background-color: #232323;
  justify-content: center;
  align-items: center;
  z-index: 3;
}
.head .logo {
  position: absolute;
  width: 258.1px;
  height: 40px;
  left: 53px;
  top: 12px;
  background: url("../img/logo.png") no-repeat;
  background-size: 100% 100%;
  cursor: pointer;
}
.head .center {
  width: 664px;
  display: flex;
  justify-content: space-evenly;
  font-size: 16px;
  color: #ffffff;
}
.head .center .item {
  cursor: pointer;
}
.head .center .item.selected {
  color: #40e0da;
}
.head .center .item:hover {
  color: #40e0da;
}
.main {
  margin: 0 auto;
  width: 19.2rem;
  position: relative;
}
.main .content {
  margin-top: 150px;
  width: 19.2rem;
  background: url("../img/cooperate/bg.jpg") no-repeat;
  background-size: 100% 100%;
  display: flex;
  align-items: center;
  flex-direction: column;
}
.main .content .title {
  width: 242px;
  height: 103px;
  background: url("../img/cooperate/title.png") no-repeat;
  background-size: 100% 100%;
}
.main .content .info {
  width: 600px;
  margin-top: 10px;
  margin-left: 150px;
  font-size: 20px;
  color: #8e8e8e;
  line-height: 45px;
}
.main .footer {
  width: 100%;
  height: 270px;
  background-color: #232323;
  display: flex;
  justify-content: center;
  align-items: center;
  position: fixed;
  bottom: 0;
}
.main .footer .center {
  width: 350px;
  height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  align-items: center;
}
.main .footer .center .logo {
  width: 258.1px;
  height: 40px;
  background: url("../img/footer/logo.png") no-repeat;
  background-size: 100% 100%;
}
.main .footer .center .title {
  width: 220px;
  height: 16px;
  font-size: 14px;
  color: #999999;
  position: relative;
  align-items: center;
  text-align: center;
}
.main .footer .center .title .right-line::after {
  content: "|";
  position: absolute;
  right: -14px;
  top: 0;
  width: 10px;
  height: 100%;
}
.main .footer .center .title .about {
  position: absolute;
  height: 100%;
  width: 60px;
  cursor: pointer;
  text-align: center;
}
.main .footer .center .title .join {
  position: absolute;
  left: 75px;
  height: 100%;
  width: 62px;
  cursor: pointer;
  text-align: center;
}
.main .footer .center .title .business {
  position: absolute;
  right: 0;
  height: 100%;
  width: 62px;
  cursor: pointer;
  text-align: center;
}
.main .footer .center .explanation {
  font-size: 12px;
  color: #999;
  text-align: center;
}
.main .footer .center .explanation .box {
  display: flex;
  justify-content: center;
}
.main .footer .center .explanation a {
  color: #999;
  text-decoration: none;
}