* {
  margin: 0;
  padding: 0;
}
a {
  color: #333333;
  text-decoration: none;
}
ul li {
  list-style: none;
}
.big_bg {
  margin-top: 80px;
  position: relative;
}
.big_bg > img {
  width: 100%;
  vertical-align: text-bottom;
}
.big_bg .con {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.big_bg .con .title {
  font-size: 36px;
  color: #FFFFFF;
}
.big_bg .con .line {
  width: 40px;
  height: 3px;
  background: #FFFFFF;
  margin: 20px auto 30px;
}
.big_bg .con .eng {
  font-size: 54px;
  color: #FFFFFF;
  font-weight: bold;text-transform: uppercase
}
.big_bg .con img {
  width: 50px;
  vertical-align: text-bottom;
  animation: move 2s linear infinite;
  margin-top: 45px;
}
.two_nav {
  width: 100%;
  height: 80px;
  background: #F5F5F5;
  display: flex;
  align-items: center;
}
.two_nav .father {
  width: 25%;
  height: 100%;
  background: #FF891F;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2% 0 5%;
  box-sizing: border-box;
}
.two_nav .father img {
  width: 30px;
  vertical-align: text-bottom;
}
.two_nav .father img:nth-last-child(1) {
  width: 20px;
}
.two_nav .father span {
  font-size: 20px;
}
.two_nav .right {
  display: flex;
  align-items: center;
  width: 80%;
}
.two_nav .right .ul{
  display: flex;
  justify-content: space-around;
  align-items: center;
  width: 100%;
}
.two_nav .right a {
  font-size: 16px;
  color: #333333;
  padding: 0 !important;
  box-sizing: border-box;
  display: block;
}
.two_nav .right a.active {
  color: #FF891F;
}
.two_nav .right span {
  color: #DDDDDD;
}
.page {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 80px;
}
.page a {
  width: 32px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  border: 1px solid #E8E8E8;
  box-sizing: border-box;
  margin-right: 10px;
  color: #333333;
}
.page a:nth-last-child(1) {
  margin-right: 0;
}
.page a.a {
  color: #FF891F;
  border-color: #FF891F;
}
.detail_nav {
  padding: 35px 120px;
  box-sizing: border-box;
  background: #F6F6F6;
  display: flex;
  align-items: center;
}
.detail_nav img {
  width: 30px;
  vertical-align: text-bottom;
  margin-right: 25px;
}
.detail_nav .con {
  display: flex;
  align-items: center;
  font-size: 18px;
  color: #666666;
}
.detail_nav .con a {
  font-size: 18px;
  color: #666666;
}
.detail_nav .con span {
  margin: 0 5px;
}
@keyframes move {
  0%,
  50% {
    transform: translateY(0);
  }
  25% {
    transform: translateY(-10px);
  }
  75% {
    transform: translateY(10px);
  }
}
@media screen and (max-width: 768px) {
  .big_bg {
    margin-top: 60px;
  }
  .big_bg .con .title {
    font-size: 20px;
  }
  .big_bg .con .line {
    margin: 5px auto;
  }
  .big_bg .con .eng {
    font-size: 18px;
    text-align: center;
	  
  }
  .big_bg .con img {
    display: none;
    width: 24px;
    margin-top: 5px;
  }
  .two_nav {
    display: none;
  }
  .page {
    margin-bottom: 30px;
  }
  .page a {
    width: 25px;
    height: 25px;
    line-height: 25px;
    font-size: 12px;
  }
  .detail_nav {
    padding: 20px 2%;
  }
  .detail_nav img {
    width: 20px;
    margin-right: 10px;
  }
  .detail_nav .con {
    font-size: 14px;
  }
  .detail_nav .con a {
    font-size: 14px;
  }
  .detail_nav .con span {
    margin: 0 2px;
  }
}