input::-webkit-input-placeholder {
  color: #999;
}
input::-moz-input-placeholder {
  color: #999;
}
input::-ms-input-placeholder {
  color: #999;
}
.nei_header{
  background-color: #fff;
}
.banner_shiting{
  height: 60px;
  background-image: url(/uploads/image/spishiting/banner_shiting.png);
  background-position: center center;
  background-repeat: no-repeat;
}
.position{
  height: 44px;
  line-height: 44px;
  padding-left: 24px;
  border-bottom: 1px solid #e9eaed;
  font-size: 14px;
  color: #666;
}
.position a{
  color: #666;
}
.fenlei_key dl{
  margin-top: 20px;
  margin-left: 24px;
  padding-left: 60px;
  padding-right: 60px;
  position: relative;
}
.fenlei_key dl:after{
  content: "";
  display: inline-block;
  height: 1px;
  position: absolute;
  left: 110px;
  bottom: -5px;
  right: 60px;
  border-bottom: 1px dashed #e9eaed;
}
.fenlei_key dt{
  display: inline-block;
  position: absolute;
  left: 0;
  top: 0;
  font-size: 18px;
  color: #333;
  font-weight: 600;
  line-height: 34px;
}
.fenlei_key dt:after{
  content: "";
  height: 3px;
  position: absolute;
  left: 3px;
  right:18px;
  bottom:9px;
  background-color: rgba(71, 129, 216, 0.6);
}
.fenlei_key dd a{
  display: inline-block;
  height: 34px;
  margin-left: 30px;
  margin-bottom: 10px;
  padding-left: 15px;
  padding-right: 15px;
  line-height: 34px;
  font-size: 14px;
  color: #000;
}
.fenlei_key dd a:hover,.fenlei_key dd a.active{
  border-radius: 17px;
  background-color: #4e9cff;
  color: #fff;
}
.shixue_list ul{
  margin-left: -18px;
  margin-top: -18px;
}
.shixue_list ul li{
  width: 286px;
  height: 209px;
  float: left;
  margin-left: 18px;
  margin-top: 18px;
  background: #fff;
  border-radius: 6px;
  padding: 15px;
  overflow: hidden;
  position: relative;
}
.shixue_list ul li .biaoqian{
  display: inline-block;
  width: 109px;
  height: 28px;
  background: #f6f6f6;
  border-radius: 14px;
  border-radius: 14px;
  line-height: 28px;
  text-align: center;
  font-size: 14px;
  font-weight: 400;
  color: #738aa8;
}
.shixue_list ul li .biaoqian_wrap{
  height: 28px;
  white-space: nowrap;
  overflow: hidden;
}
.shixue_list ul li .course_title{
  font-size: 20px;
  font-weight: bold;
  color: #333;
  margin-top: 16px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.shixue_list ul li .auth_img_wrap,.shixue_list ul li .auth_img{
  width: 30px;
  height: 30px;
  background: #dfdcda;
  border-radius: 50%;
  position: relative;
}
.shixue_list ul li .vip_img{
  position: absolute;
  right: 0;
  bottom: 0;
}
.shixue_list ul li .auth_name{
  font-size: 14px;
  line-height: 30px;
  color: #333;
  margin-left: 10px;
}
.shixue_link{
  width: 120px;
  height: 40px;
  position: absolute;
  top: 104px;
  right: 0;
  display: block;
  background: #fff4ee;
  border-radius: 20px 0px 0px 20px;
  font-size: 16px;
  font-weight: 600;
  color: #ff7100;
  line-height: 40px;
  text-align: center;
}
.shixue_link:before{
  content: "";
  padding:12px;
  background-image: url(/uploads/image/spishiting/ej.png);
  background-position: left center;
  background-repeat: no-repeat;
}
.shixue_link:hover{
  color: #ff7100;
}
.bottom_study_status{
  position: absolute;
  left: 0;
  bottom: 0;
  width: 286px;
  height: 50px;
  background: #f6f7fb;
  border-radius: 0px 0px 6px 6px;
  font-size: 12px;
  color: #738aa8;
  line-height: 50px;
  padding-left: 18px;
}
.bottom_study_status .study_img{
 width: 66px;
 height: 27px;
 position: absolute;
 right: 16px;
 bottom: 11px;
}
.bottom_study_status .study_img img{
  position: absolute;
  top: 0;
  width: 27px;
  height: 27px;
  border-radius: 50%;
}
.bottom_study_status .study_img .z-index-1{
  left: 0;
  z-index:1;
}
.bottom_study_status .study_img .z-index-2{
  left: 13px;
  z-index:2;
}
.bottom_study_status .study_img .z-index-3{
  left: 27px;
  z-index:3;
}
.bottom_study_status .study_img .z-index-4{
  left: 40px;
  z-index:4;
}
.back_wrap{
  position: absolute;
  left: 0;
  top: 100%;
  z-index: 9;
  width: 286px;
  height: 209px;
  background-image: url(/uploads/image/spishiting/back.png);
  background-position: left center;
  background-repeat: no-repeat;
  padding-top: 28px;
  transition: top 1.2s;
  -moz-transition: top 1.2s; /* firefox 4 */
  -webkit-transition: top 1.2s; /* safari 和 chrome */
  -o-transition: top 1.2s; /* oper */
}
.shixue_list li:hover .back_wrap{
  top: 0;
}
.back_title{
  font-size: 30px;
  font-weight: bold;
  color: #fff;
  line-height: 50px;
  text-align: center;
}
.back_btn{
  width: 167px;
  height: 31px;
  margin: 12px auto;
  line-height: 31px;
  text-align: center;
  background: #fff;
  box-shadow: 0px 3px 10px 0px rgba(18, 85, 194, 0.15);
  border-radius: 16px;
  font-size: 14px;
  font-weight: 500;
  color: #2665b5;
  position: relative;
}
.back_btn:before,.back_btn:after{
  content: "";
  display: block;
  position: absolute;
  top: 50%;
  margin-top: -2px;
  width:4px;
  height:4px;
  background-color: #4e9cff;
  border-radius: 50%;
}
.back_btn:before{
  left: 15px;
}
.back_btn:after{
  right: 15px;
}
.back_link{
  display: block;
  font-size: 14px;
  color: #fff;
  line-height: 50px;
  text-align: center;
}
.back_link:hover{
  color: #fff;
}
.shixue_search{
  width: 270px;
  height: 40px;
  margin-top: 10px;
  position: relative;
}
.shixue_search input{
  width: 270px;
  height: 40px;
  background-color: #fff;
  border-radius: 20px;
  font-size: 14px;
  color: #333;
  padding-left: 15px;
  padding-right: 15px;
  border: none;
}
.search_zoom{
  position: absolute;
  right: 0;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #eee;
  background-image: url(/uploads/image/spishiting/yellow_zoom.png);
  background-position: center center;
  background-repeat: no-repeat;
  cursor: pointer;
}