@charset "utf-8";
/*
    * Busy 收集 整理
 */
/*雅虎（YUI 3）reset*/
/*Normalize.css*/
html,
body {
  width: 100%;
  height: 100%;
  background: #fff!important;
  font-family: '微软雅黑' !important;
}
input::-webkit-input-placeholder {
  /* placeholder颜色 */
  color: #666;
  /* placeholder字体大小 */
  /* placeholder位置 */
}
.fl {
  float: left;
}
.fr {
  float: right;
}
/*banner*/
.banner {
  width: 100%;
  height: auto;
  background: #eaeaea;
  margin-bottom: 28px;
  margin-top: 60px;
}
.banner img {
  width: 100%;
  height: auto;
}
.must_lookarea {
  width: 1200px;
  margin: 0 auto;
}
.must_lookarea .ml_header {
  height: 85px;
  line-height: 85px;
  text-align: center;
  font-size: 18px;
  color: #333;
  font-weight: bold;
}
.must_lookarea .ml_header span {
  margin: 0 5px;
}
.must_lookarea .ml_advertise {
  *zoom: 1;
  margin-bottom: 20px;
}
.must_lookarea .ml_advertise:before,
.must_lookarea .ml_advertise:after {
  display: table;
  content: "";
}
.must_lookarea .ml_advertise:after {
  clear: both;
}
.must_lookarea .ml_advertise a {
  width: 584px;
  height: 180px;
  display: inline-block;
  overflow: hidden;
  box-shadow: #ccc 0 0 10px;
}
.must_lookarea .ml_advertise img {
  transition: 1s all ease;
}
.must_lookarea .ml_advertise img:hover {
  transform: scale(1.1);
  transition: 1s all ease;
}
.must_lookarea .quality_goods {
  height: 60px;
  line-height: 60px;
}
.block_flex {
  background: #fff;
  margin: 0 auto;
  width: 1200px;
}
.block_flex h6 {
  height: 40px;
  color: #ff434b;
  font-size: 18px;
  font-weight: bold;
}
.block_flex h5 {
  color: #333;
  height: 40px;
  font-size: 18px;
  font-weight: bold;
}
.block_flex h5 a {
  float: right;
  font-size: 14px;
  padding-top: 10px;
}
.block_flex ul {
  margin-right: -31px;
  padding: 1px;
}
.block_flex ul li {
  width: 276px;
  height: 280px;
  float: left;
  margin-right: 31px;
  background: #fff;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  box-shadow: -5px 5px 10px -5px #f1f1f1, 5px 5px 10px -5px #f1f1f1;
  transition: 0.5s all ease;
}
.block_flex ul li:hover {
  transition: 0.5s all ease;
  transform: translateY(-15px);
}
.block_flex ul li .lesson_img {
  width: 100%;
  height: 180px;
  position: relative;
}
.block_flex ul li .lesson_img img {
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  width: 100%;
  height: 100%;
}
.block_flex ul li .lesson_img .mask_tv {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  background: rgba(0, 0, 0, 0.5);
  display: none;
}
.block_flex ul li .lesson_img .mask_tv p {
  position: absolute;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 2px solid #fff;
  padding: 0;
  left: 50%;
  margin-left: -31px;
  top: 50%;
  margin-top: -31px;
}
.block_flex ul li .lesson_img .mask_tv p::after {
  position: absolute;
  content: "";
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-left: 20px solid #fff;
  border-bottom: 10px solid transparent;
  left: 50%;
  margin-left: -8px;
  top: 50%;
  margin-top: -10px;
}
.block_flex ul li .block_info p {
  padding: 0 15px;
}
.block_flex ul li .block_info p.ptitle {
  font-size: 16px;
  color: #333;
  margin-top: 10px;
  height: 42px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}
.block_flex ul li .block_info p.pmoney {
  overflow: hidden;
  margin-top: 10px;
}
.block_flex ul li .block_info p.pmoney small {
  color: #ff434b;
  font-size: 20px;
  float: left;
  display: inline-block;
}
.block_flex ul li .block_info p.pmoney small::first-letter {
  font-size: 16px;
}
.block_flex ul li .block_info p.pmoney b {
  float: right;
  font-size: 14px;
  color: #999;
  padding-top: 5px;
  font-weight: normal;
}
.block_flex ul li .block_info div.countdown {
  color: #753307;
  font-size: 14px;
  height: 24px;
  line-height: 24px;
  margin-top: 14px;
  padding: 0 15px;
}
.block_flex ul li .block_info p.snapup {
  text-align: center;
}
.block_flex ul li .block_info p.snapup a.qiangg {
  width: 120px;
  height: 28px;
  line-height: 28px;
  background: #ff434b;
  font-size: 14px;
  color: #fff;
  text-align: center;
  display: inline-block;
  -webkit-border-radius: 15px;
  -moz-border-radius: 15px;
  border-radius: 15px;
  margin: 19px 0;
}
.block_flex ul li:last-child {
  margin-right: 0;
}
.block_flex .change_lesson {
  width: 100%;
  text-align: center;
  overflow: hidden;
}
.block_flex .change_lesson a {
  width: 158px;
  height: 38px;
  line-height: 38px;
  border: 1px solid #e5e5e5;
  display: inline-block;
  margin-top: 36px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
}
.block_flex .change_lesson a img {
  margin-right: 7px;
}
.book_teaching {
  width: 1200px;
  margin: 0 auto;
}
.book_teaching .ml_header {
  height: 85px;
  line-height: 85px;
  text-align: center;
  font-size: 18px;
  color: #333;
  font-weight: bold;
}
.book_teaching .ml_header span {
  margin: 0 5px;
}
.book_teaching .img_ul {
  width: 100%;
}
.book_teaching .img_ul .img_con {
  width: 276px;
  height: 556px;
  float: left;
  overflow: hidden;
}
.book_teaching .img_ul .img_con img {
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  transition: 1s all ease;
}
.book_teaching .img_ul .img_con img:hover {
  transform: scale(1.05);
  transition: 1s all ease;
}
.book_teaching .img_ul .ul_con {
  width: 891px;
  height: 100%;
  float: right;
}
.book_teaching .img_ul .ul_con ul {
  margin-right: -32px;
  padding: 1px;
}
.book_teaching .img_ul .ul_con ul li {
  width: 276px;
  min-height: 270px;
  float: left;
  margin-right: 31px;
  margin-bottom: 15px;
  background: #fff;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  box-shadow: -5px 5px 10px -5px #f1f1f1, 5px 5px 10px -5px #f1f1f1;
  transition: 0.5s all ease;
}
.book_teaching .img_ul .ul_con ul li:hover {
  transition: 0.5s all ease;
  transform: translateY(-15px);
}
.book_teaching .img_ul .ul_con ul li .lesson_img {
  width: 100%;
  height: 180px;
  position: relative;
}
.book_teaching .img_ul .ul_con ul li .lesson_img img {
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  width: 100%;
  height: 100%;
}
.book_teaching .img_ul .ul_con ul li .lesson_img .mask_tv {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  background: rgba(0, 0, 0, 0.5);
  display: none;
}
.book_teaching .img_ul .ul_con ul li .lesson_img .mask_tv p {
  position: absolute;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 2px solid #fff;
  padding: 0;
  left: 50%;
  margin-left: -31px;
  top: 50%;
  margin-top: -31px;
}
.book_teaching .img_ul .ul_con ul li .lesson_img .mask_tv p::after {
  position: absolute;
  content: "";
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-left: 20px solid #fff;
  border-bottom: 10px solid transparent;
  left: 50%;
  margin-left: -8px;
  top: 50%;
  margin-top: -10px;
}
.book_teaching .img_ul .ul_con ul li .block_info p {
  padding: 0 15px;
}
.book_teaching .img_ul .ul_con ul li .block_info p.ptitle {
  font-size: 16px;
  color: #333;
  margin-top: 10px;
  height: 42px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}
.book_teaching .img_ul .ul_con ul li .block_info p.pmoney {
  overflow: hidden;
}
.book_teaching .img_ul .ul_con ul li .block_info p.pmoney small {
  color: #ff434b;
  font-size: 20px;
  float: left;
  display: inline-block;
}
.book_teaching .img_ul .ul_con ul li .block_info p.pmoney small::first-letter {
  font-size: 16px;
}
.book_teaching .img_ul .ul_con ul li .block_info p.pmoney b {
  float: right;
  font-size: 14px;
  color: #999;
  padding-top: 5px;
  font-weight: normal;
}
.book_teaching .img_ul .ul_con ul li:last-child {
  margin-right: 0;
}
.book_teaching .img_ul .change_lesson {
  width: 100%;
  text-align: center;
  overflow: hidden;
  margin-bottom: 70px;
}
.book_teaching .img_ul .change_lesson a {
  width: 158px;
  height: 38px;
  line-height: 38px;
  border: 1px solid #e5e5e5;
  display: inline-block;
  margin-top: 36px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
}
.book_teaching .img_ul .change_lesson a img {
  margin-right: 7px;
}
.page {
  text-align: center;
  overflow: hidden;
  width: 100%;
}
.page ul {
  width: 100%;
  height: 100%;
  margin: 45px 0;
}
.page ul li {
  width: 28px;
  height: 28px;
  line-height: 28px;
  text-align: center;
  border: 1px solid #999;
  margin: 0 10px;
  display: inline-block;
  -webkit-border-radius: 3px;
  -moz-border-radius: 3px;
  border-radius: 3px;
}
.page ul li:hover {
  cursor: pointer;
}
.page ul li:first-child {
  width: 88px;
}
.page ul li:last-child {
  width: 88px;
}
.tm_active {
  background: #bd0000!important;
}
.li_active {
  color: #bd0000;
}
@media (max-width: 1200px) {
  .wrapper {
    width: 992px;
  }
  .must_lookarea {
    width: 992px;
  }
  .must_lookarea .ml_header img {
    width: 350px;
  }
  .must_lookarea .ml_advertise a {
    width: 490px;
    height: 160px;
  }
  .must_lookarea .ml_advertise a img {
    width: 100%;
    height: 100%;
  }
  .block_flex {
    width: 992px;
  }
  .block_flex ul li {
    width: 236px;
    margin-right: 16px;
  }
   .block_flex ul li:nth-child(4n+4) {
        margin-right: 0;
    }
  .book_teaching {
    width: 992px;
  }
  .book_teaching .ml_header img {
    width: 350px;
  }
  .book_teaching .img_ul .ul_con {
    width: 700px;
  }
  .book_teaching .img_ul .ul_con ul li {
    width: 223px;
    margin-right: 20px;
  }
}
#timeliimit ul li {
  height: 350px;
}
@media (max-width: 1024px) {
  .wrapper {
    width: 720px;
  }
  .banner {
    height: auto;
    margin-bottom: 0;
  }
  .banner img {
    width:100%;
    height: auto;
  }
  .must_lookarea {
    width: 720px;
  }
  .must_lookarea .ml_header img {
    width: 300px;
  }
  .must_lookarea .ml_advertise a {
    width: 355px;
    height: auto;
  }
  .must_lookarea .ml_advertise a img {
    width: 100%;
    height: auto;
  }
  .block_flex {
    width: 720px;
  }
  .block_flex ul li {
    width: 31%;
    height:auto;
    margin-right: 1%;
    padding-bottom:5px;
    margin-bottom: 20px;
  }
  /*.block_flex ul li:nth-child(even) {
    margin-right: 0;
  }*/
  .block_flex ul li .lesson_img {
    width: 100%;
    height: auto; 
    position: relative;
  }
  .block_flex ul li .lesson_img img {
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
    width: 100%;
    height:auto;
  }
  .block_flex ul li .block_info p.ptitle {
    font-size: 16px;
    color: #333;
    margin-top: 10px;
    height: auto;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}
  .block_flex .change_lesson a {
    margin-top: 10px;
  }
  .book_teaching {
    width: 720px;
  }
  .book_teaching .ml_header img {
    width: 300px;
  }
  .book_teaching .img_ul .ul_con {
    width: 720px;
  }
  .book_teaching .img_ul .ul_con ul li {
    width: 230px;
    margin-right: 20px;
  }
  .book_teaching .img_ul .img_con {
    display: none;
  }
}