* {
  margin: 0;
  padding: 0;
}
body {
  color: #474747;
  font-size: 12px;
  font-family: "微软雅黑", "΢���ź�";
}
.left {
  float: left;
}
.right {
  float: right;
}
.clear {
  clear: both;
}
ul,
li,
dl,
dd,
h1,
h2,
h3,
h4,
h5,
h6,
form,
p {
  padding: 0;
  margin: 0;
}
ul {
  list-style: none;
}
a:hover {
  text-decoration: none;
}
.b2Box {
  width: 100%;
  background: #F6F6F7;
  padding-top: 20px;
}
.b2Box .body2 {
  width: 1024px;
  margin: 0 auto;
  overflow: hidden;
}
.b2Box .body2 .courDetail {
  background: #fff;
  padding: 30px 20px 40px 20px;
  border: 1px solid #F2F2F3;
  overflow: hidden;
  position: relative;
}
.b2Box .body2 .courDetail .share {
  position: absolute;
  top: 235px;
  left: 25px;
}
.b2Box .body2 .courDetail .imgBox {
  width: 253px;
  height: 206px;
}
.b2Box .body2 .courDetail .cFont {
  width: 719px;
  margin-left: 10px;
}
.b2Box .body2 .courDetail .cFont h2 {
  font-weight: 500;
}
.b2Box .body2 .courDetail .cFont p {
  margin-top: 3px;
  line-height: 22px;
}
.b2Box .body2 .courDetail .cFont .couName {
  color: #FF6C4C;
}
.b2Box .body2 .courDetail .cFont .couName img {
  position: relative;
  top: -2px;
  margin-right: 3px;
}
.b2Box .body2 .courDetail .cFont .couTh b {
  display: inline-block;
  height: 15px;
  border-left: 1px solid #5A5A5A;
  margin: 0 5px;
  position: relative;
  top: 3px;
}
.b2Box .body2 .courDetail .cFont .clIntro {
  min-height: 100px;
}
.b2Box .body2 .courDetail .cFont .clIntro span {
  display: inline-block;
  width: 566px;
}
.b2Box .body2 .courDetail .cFont .clIntro b {
  font-weight: normal;
}
.b2Box .body2 .courDetail .cFont .bBuy .bTime i {
  font-style: normal;
}
.b2Box .body2 .courDetail .cFont .bBuy b {
  display: inline-block;
  height: 13px;
  border-left: 1px solid #6F6F6F;
  margin: 0 10px;
  position: relative;
  top: -9px;
}
.b2Box .body2 .chapter {
  margin-top: 30px;
}
.b2Box .body2 .chapter span {
  font-size: 18px;
  color: #434343;
  margin-left: 5px;
}
.b2Box .body2 .chapter img {
  position: relative;
  top: -3px;
}
.b2Box .body2 .chapter_box {
  margin-top: 15px;
  margin-bottom: 60px;
  overflow: hidden;
}
.b2Box .body2 .chapter_box .chapter_list {
  width: 560px;
  height: 318px;
  overflow-y: scroll;
  border: 1px solid #EDEDED;
}
.b2Box .body2 .chapter_box .chapter_list table {
  width: 100%;
}
.b2Box .body2 .chapter_box .chapter_list table thead tr {
  background: #E2E2E2;
  height: 40px;
  font-size: 15px;
}
.b2Box .body2 .chapter_box .chapter_list table thead tr td {
  text-align: center;
}
.b2Box .body2 .chapter_box .chapter_list table tbody tr {
  height: 67px;
  background: #fff;
}
.b2Box .body2 .chapter_box .chapter_list table tbody tr td {
  text-align: center;
}
.b2Box .body2 .chapter_box .chapter_list table tbody tr td .try_img {
  cursor: pointer;
}
.b2Box .body2 .chapter_box .chapter_list table tbody tr td p {
  padding-left: 30px;
}
.b2Box .body2 .chapter_box .chapter_list table tbody tr td p .cou_num {
  font-size: 15px;
  color: #427DC3;
}
.b2Box .body2 .chapter_box .chapter_list table tbody tr .cou_name {
  text-align: left;
  padding-left: 20px;
  position: relative;
}
.b2Box .body2 .chapter_box .chapter_list table tbody tr .cou_name .line2 {
  position: absolute;
  top: -25px;
  left: 20px;
}
.b2Box .body2 .chapter_box .chapter_list table tbody tr .cou_name .line1 {
  position: absolute;
  top: 25px;
}
.b2Box .body2 .chapter_box .chapter_media {
  margin-left: 8px;
  width: 455px;
}
.b2Box .body2 .chapter_box .chapter_media video {
  width: 455px;
  height: 318px;
}
.grzl_detail1_box1 {
  z-index: 1000;
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  padding-top: 90px;
  font-size: 12px;
}
.grzl_detail1_box1 .grzl_detail1_box2 {
  width: 600px;
  padding-bottom: 10px;
  margin: 0 auto;
  background: #fff;
  padding-top: 30px;
  position: relative;
}
.grzl_detail1_box1 .grzl_detail1_box2 .grzl_detail1 {
  position: absolute;
  width: 15px;
  height: 15px;
  text-align: center;
  line-height: 15px;
  background: #BCBCBC;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
  top: 8px;
  right: 10px;
}
.grzl_detail1_box1 .grzl_detail1_box2 .grzl_detail3 {
  width: 570px;
  min-height: 190px;
  border: 2px solid #3F76BF;
  margin: 0 auto;
  padding-top: 10px;
  padding-left: 10px;
}
.grzl_detail1_box1 .grzl_detail1_box2 .grzl_detail3 span {
  font-size: 14px;
}
/**面包屑导航**/
.neNav {
  color: #A2A2A2;
  margin-bottom:15px;
}
.neNav .brdNav {
  position: relative;
  top: -3px;
 
}
.neNav span a {
  color: #a2a2a2;
  text-decoration: none;
}