@charset "utf-8";
html,
body {
  /*background: #000;*/
}
* {
  padding: 0;
  margin: 0;
  font-weight: normal;
  font-family: "Microsoft YaHei";
  list-style: none;
  text-decoration: none;
  font-size: inherit;
  line-height: 1.5em;
  font-style: normal;
}
.absolute {
  position: absolute;
}
br {
  line-height: 0;
}
.fl,
.left {
  float: left;
}
.fr,
.right {
  float: right;
}
.clearfix:after {
  clear: both;
  content: '';
  display: block;
  width: 100%;
}
.clear {
  clear: both;
  display: block;
  width: 100%;
}
.bg12 {
  width: 1200px;
  margin: 0 auto;
  position: relative;
}

.part_photo_enviroment {
  width: 100%;
  height: 920px;
  overflow: hidden;
  background: url("../images/index_enviroment_img_hall.jpg") no-repeat center top;
}
.part_photo_enviroment .bg12 {
  height: 750px;
  z-index: 2;
}
.part_photo_enviroment .enviro_nav {
  position: absolute;
  left: 50px;
  top: 0;
  width: 170px;
}
.part_photo_enviroment .enviro_nav .con {
  background: url("../images/bg_trans_black.png");
}
.part_photo_enviroment .enviro_nav .con1 {
  padding: 25px 0;
  font-size: 18px;
  color: #fff;
  text-align: center;
}
.part_photo_enviroment .enviro_nav .con1 h2 {
  font-family: "Times New Roman";
}
.part_photo_enviroment .enviro_nav .con2 {
  margin-top: 2px;
  padding: 25px 0 20px;
}
.part_photo_enviroment .enviro_nav .con2 h3 {
  text-align: center;
  font-size: 16px;
  color: #fff;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar {
  min-height: 210px;
  position: relative;
  margin-left: 25px;
  margin-top: 25px;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_bar_list {
  position: absolute;
  width: 20px;
  height: 211px;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_bar_list li {
  position: absolute;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_bar_list li.l1,
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_bar_list li.l2,
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_bar_list li.l3 {
  width: 20px;
  height: 20px;
  left: 0px;
  z-index: 2;
  background-image: url("../images/sprite.png");
  background-repeat: no-repeat;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_bar_list li.l1 {
  background-position: -204px -142px;
  top: 0;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_bar_list li.l2 {
  background-position: -230px -142px;
  top: 40px;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_bar_list li.l3 {
  background-position: -178px -142px;
  bottom: 0;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_bar_list li.l4 {
  z-index: 1;
  width: 6px;
  height: 210px;
  left: 50%;
  margin-left: -3px;
  top: 0;
  background: #95774c;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_list {
  padding: 30px 0 0 30px;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_list li {
  font-size: 14px;
  color: #95774c;
  line-height: 24px;
  margin: 10px 0;
  cursor: pointer;
  transition: all 0.3s linear;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_list li:hover,
.part_photo_enviroment .enviro_nav .con2 .nav_bar .nav_list li.on {
  color: #fff;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .cornor_list {
  display: none;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .cornor_list dd {
  width: 55px;
  height: 55px;
  display: block;
  border: 1px solid #000;
  margin: 2px 0;
  position: relative;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .cornor_list dd > img {
  display: block;
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .cornor_list dd:before {
  content: '';
  width: 100%;
  height: 100%;
  display: block;
  position: absolute;
  transition: all 0.5s linear;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.6);
}
.part_photo_enviroment .enviro_nav .con2 .nav_bar .cornor_list dd:hover:before,
.part_photo_enviroment .enviro_nav .con2 .nav_bar .cornor_list dd.on:before {
  background: rgba(0, 0, 0, 0);
}
.part_photo_enviroment .con_en_img {
  z-index: 1;
  width: 100%;
  height: 920px;
  position: absolute;
  top: 0;
  left: 0;
  overflow: hidden;
}
.part_photo_enviroment .con_en_img .en_img_list {
  display: block;
  width: 100%;
  height: 920px;
  overflow: hidden;
}
.part_photo_enviroment .con_en_img .en_img_list li {
  background-position: center top;
  background-repeat: no-repeat;
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
}
.part_photo_enviroment .con_en_img .en_img_list li.l1 img.light {
  position: absolute;
  bottom: 588px;
  left: 50%;
  margin-left: -521px;
  animation: light 3s ease-out infinite alternate;
}
@keyframes light {
  0% {
    opacity: 0;
  }
  40%,
  60% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
#k_s_ol_inviteWin_fl{display:none;}