@charset "utf-8";

/* CSS Document */
* {
  box-sizing: border-box;
}

body {
  font-family: "微软雅黑";
  margin: 0;
  padding: 0;
  background: rgb(246, 246, 246);
}

div,
form,
img,
ul,
ol,
li,
dl,
dt,
dd,
p,
h1,
h2,
h3,
h4,
h5,
h6,
img {
  margin: 0;
  padding: 0;
  border: 0;
  font-weight: normal;
  font-size: 12px;
}

img {
  border: none;
  vertical-align: middle;
  width: 100%;
}

ul,
li {
  list-style-type: none;
}

button {
  vertical-align: middle;
  cursor: pointer;
}

input,
button {
  vertical-align: middle;
  border: none;
  font-family: "微软雅黑";
}

.ellipsis {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.clear {
  clear: both;
  overflow: hidden;
  height: 0;
}

.blank {
  display: block;
  height: 10px;
  clear: both;
  overflow: hidden;
  visibility: hidden;
}

.lft {
  float: left;
}

.rgt {
  float: right;
}

.clearfix {
  overflow: hidden;
  zoom: 1;
}

a {
  text-decoration: none;
}


.multi {
  display: flex;
  position: relative;
  flex-wrap: nowrap;
  justify-content: flex-start;
  overflow: hidden;
  float: left;
  max-width: 100%;
  box-sizing: border-box;
}




.plr15 {
  padding-left: 32px;
  /* padding-right: .75rem; */
  background-color: #f6f6f6;
}

.site-bar {
  line-height: 100px;
  font-size: 27px;
  height: 100px;
  overflow: hidden;
}

.site-bar a,
.site-bar i {
  color: #666;
}

.site-bar i {
  margin: 0 5px;
}

.site-bar span {
  color: #bbb;
}

.zan {
  float: right;
}

/*文章内容 start */


/*超连接 获取资料*/
.a_link {
  color: red !important;
  /*font-size: 15px !important;*/
}

/*插入课程*/


/*推荐阅读*/
.a_tuijian h5,
.a_yinyong h5 {
  margin-bottom: 10px;
}

.a_tuijian,
.a_yinyong {
  margin: 10px 0;
}

.a_tuijian ul li {
  margin-bottom: 5px;
  list-style-type: disc;
}

.a_tuijian ul li a {
  color: #2800ff !important;
}

.a_tuijian .card-title:before {
  content: "";
  display: block;
  width: 36px;
  height: 36px;
  position: absolute;
  left: 0;
  top: 0;
  border-radius: 50%;
  background: url("../images/icon-tag1.jpg") center no-repeat;
  background-size: 100% 100%;
  overflow: hidden;
  margin-left: 10px;
}

/*引用*/
.a_yinyong .card-title:before {
  content: "";
  display: block;
  width: 36px;
  height: 36px;
  position: absolute;
  left: 0;
  top: 0;
  border-radius: 50%;
  background: url("../images/icon-tag1.jpg") center no-repeat;
  background-size: 100% 100%;
  overflow: hidden;
  margin-left: 10px;
}

.a_yinyong ul li {
  margin-bottom: 5px;
}


.a_yinyong ul li span {
  margin-right: 8px;
  color: #999 !important;
}

/*下载*/
.a_xiazhai {
  display: block !important;
  border-radius: 32px !important;
  border: 1px solid #f74a52 !important;
  text-align: center !important;
  text-decoration: none !important;
  color: red !important;
}


.ab-red {
  padding: 10px 0
}

.ab-red a {
  color: red !important;
  text-decoration: none
}

.ab-btn {
  padding: 10px 0
}

.ab-btn a {
  display: block;
  border: 1px solid red;
  color: red !important;
  line-height: 260% !important;
  text-align: center !important;
  border-radius: 50px
}

.ab-list .ab-title {
  position: relative;
  font-weight: bold;
  color: #333;
  text-indent: 2em;
  line-height: 200%
}

.ab-list .ab-title::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 1.5em;
  height: 1.5em;
  background: url("https://m.gaodun.com/skin/public/images/icon-tag1.png");
  background-size: 100% 100%;
  transform: translateY(-50%);
  content: ""
}

.ab-list li {
  text-indent: 2em !important;
  line-height: 200% !important;
  list-style-type: disc !important
}

/*.ab-list2 li{ list-style: decimal-leading-zero}*/
.ab-list li a {
  color: #2800FF !important
}

.ab-list2 li a {
  color: #333
}

.ab-flex {
  display: flex;
  justify-content: center
}

.ab-flex a {
  padding: 5px 10px;
  margin: 0 5px;
  border: 1px solid #ff0000;
  color: #ff0000 !important;
  text-indent: 0 !important;
}


.fieldset {
  width: 100%;
  font-size: 30px;
  font-weight: 700;
  color: #000;
  border: 1px solid transparent;
  border-top-color: rgb(249, 98, 3);
  /* color: rgb(255, 110, 0); */
}

.fieldset.orange {
  color: #fff;
  border-top-color: rgb(253, 178, 74);
}

.fieldset .legend {
  position: relative;
  margin: auto;
  padding: 0 25px;
}

.fieldset .legend::before {
  content: '';
  display: block;
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 16px;
  background: url(../img/ico_left.png) center no-repeat;
}

.fieldset.orange .legend::before {
  background: url(../img/ico_left_orange.png) center no-repeat;
}

.fieldset .legend::after {
  content: '';
  display: block;
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 16px;
  background: url(../img/ico_right.png) center no-repeat;
}

.fieldset.orange .legend::after {
  background: url(../img/ico_right_orange.png) center no-repeat;
}

.orange {
  color: rgb(249, 98, 3);
}