@charset "utf-8";

* {
  font-family: "微软雅黑";
}

body,
ul,
li,
h1,
p,
table,
tr,
td,
a,
h2,
h3 {
  margin: 0;
  padding: 0;
}

ul,
li {
  list-style: none;
}

h1,
h2,
h3 {
  font-weight: normal;
}

input {
  padding: 0;
  margin: 0;
  border: none;
  outline: none;
  background: none;
}

li {
  list-style: none;
}

a {
  text-decoration: none;
}

.bold {
  font-weight: bold;
}

.Flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  align-content: center;
}

.Flex3 {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.Flex1 {
  display: flex;
  justify-content: center;
  align-items: center;
}

.Flex2 {
  display: flex;
  align-items: center;
}

.foot {
  bottom: 0;
  width: 100%;
  margin: 0 auto;
  background-color: #142f5f;
  height: 100px;
  z-index: 999;
}

.Copyright {
  width: 100%;
  color: #fff;
  font-size: 14px;
  text-align: center;
  line-height: 50px;
}

.top {
  width: 100%;
  height: 80px;
  box-shadow: 0px 0px 4px 0px rgba(0, 0, 0, 0.1);
  background: #fff;
}

.top-Content {
  width: 100%;
}

.logo {
  width: 25%;
  text-align: center;
}

.logo img {
  width: 90%;
  max-width: 253px;
}

.Navigation {
  width: 70%;
}

.Navigation li {
  font-size: 18px;
  color: #333;
  width: 19%;
  text-align: center;
  height: 40px;
  padding-top: 20px;
}

.Navigation li a {
  color: #333;
}

.Marking {
  margin-top: 6px;
}

.bg1 {
  background: #191919;
}

.address {
  width: 100%;
  height: 40px;
  line-height: 40px;
  background: #282828;
}

.address-box {
  width: 1340px;
  height: 40px;
  font-size: 14px;
  color: #999;
  line-height: 40px;
}

.paly {
  width: 1340px;
  margin: 0 auto;
}

.class-name {
  height: 86px;
  width: 1340px;
  color: #fff;
  line-height: 86px;
  font-size: 24px;
}

.play-box {
  width: 1340px;
  height: 560px;
}

.video {
  width: 980px;
  height: 560px;
  background: #fff;
}

.video-list {
  width: 360px;
  height: 560px;
  background: #2d2d2d;
  overflow: hidden;
}

.teacher {
  height: 96px;
  width: 360px;
  background: #333;
}

.avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #cccccc;
  overflow: hidden;
  margin-left: 44px;
}

.teacher-box {
  height: 56px;
  margin-left: 10px;
}

.t-name {
  font-size: 16px;
  font-weight: bold;
  color: #fff;
  line-height: 36px;
}

.school {
  font-size: 14px;
  color: #8d9193;
  line-height: 24px;
}

.directory {
  height: 44px;
  border-bottom: 2px solid #000;
  width: 360px;
}

.directory-box {
  width: 160px;
  height: 44px;
  color: #fff;
  font-size: 16px;
  font-weight: bold;
  line-height: 44px;
  text-align: center;
}

.directory-more {
  width: 160px;
  height: 44px;
  color: #999999;
  font-size: 16px;
  line-height: 44px;
  text-align: center;
}

.directory-more img {
  margin-left: 8px;
}

.Video-box {
  width: 360px;
}

.Video-name {
  line-height: 46px;
  height: 46px;
  color: #999;
  font-size: 14px;
  margin-left: 36px;
}

.Video-Information {
  height: 30px;
  color: #666;
  font-size: 12px;
  margin-left: 36px;
}

.Video-Information img {
  margin-right: 40px;
}

.Video-Menu {
  height: 36px;
  line-height: 36px;
  font-size: 14px;
  margin-left: 36px;
  color: #fff;
}

.choose {
  background: #1e1e1e;
  color: #ffcf04;
}

.zhanwei {
  height: 100px;
}

.video-list {
  width: 360px;
  height: 420px;
  overflow-x: hidden;
  overflow-y: auto;
}

.chapter {
  width: 360px;
}

.chapter > a,
.video-name {
  display: block;
  width: 310px;
  line-height: 200%;
  color: #999;
  font-size: 14px;
  margin-left: 36px;
}

.chapter > span,
.chapter > .video-time {
  display: block;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  align-content: center;
  line-height: 30px;
  height: 30px;
  color: #666;
  font-size: 12px;
  margin-left: 36px;
  margin-right: 40px;
}

.choose {
  background: #1e1e1e;
  color: #ffcf04;
}

.chapterOn {
  background: #1e1e1e;
}

.chapterOn > a,
.chapterOn > .video-name {
  color: #ffcf04;
}

.sections {
  display: none;
}

.chapterOn .sections {
  display: block;
}

.section > a {
  display: block;
  height: 36px;
  line-height: 36px;
  font-size: 14px;
  margin-left: 36px;
  color: #fff;
}

.sectionOn > a {
  color: #ffcf04;
}

.banner-move-box {
  width: 100%;
  overflow: hidden;
  z-index: 1;
  margin: 0 auto;
}

.banner-move-box li {
  width: 100%;
  /* position: absolute; */
  /* left: 0px; */
  /* top: 0px; */
  display: none;
}

.banner-move-box li img {
  width: 100%;
}

.btn-move-box {
  position: absolute;
  z-index: 2;
  left: 1200px;
  bottom: 10px;
}

.btn-move-box li {
  width: 12px;
  height: 12px;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  margin: 0 3px;
  float: left;
  cursor: pointer;
  text-indent: -999em;
}

.btn-move-box .color {
  background-color: #fff;
}

.banner {
  width: 100%;
  margin: 0 auto;
  overflow: hidden;
  margin-top: 20px;
  text-align: center;
  position: relative;
  max-width: 1340px;
}

.banner img {
  border-radius: 10px;
  width: 100%;
}

.title {
  width: 100%;
  height: 70px;
  margin: 0 auto;
  position: relative;
  margin-top: 10px;
  max-width: 1340px;
}

.title-box {
  line-height: 70px;
  width: 100%;
  height: 70px;
  text-align: center;
  color: #1a254f;
  font-size: 20px;
  position: absolute;
  top: 0;
  z-index: 1;
}

.more {
  color: #338ce3;
  font-size: 16px;
  line-height: 70px;
  height: 70px;
  width: 50px;
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
}

.more img {
  float: right;
  margin-top: 25px;
}

.lecture-box {
  width: 100%;
  height: 304px;
  margin: 0 auto;
  max-width: 1340px;
}

.lecture {
  border-radius: 10px;
  overflow: hidden;
  width: 48%;
  height: 304px;
  box-shadow: 0px 4px 10px 0px rgba(0, 0, 0, 0.1);
}

.lecture-image {
  width: 100%;
  height: 240px;
}

.lecture-image img {
  width: 100%;
}

.name {
  width: 100%;
  height: 64px;
  line-height: 64px;
  text-align: center;
  color: #333;
  font-size: 18px;
}

.name a {
  color: #333;
}

.class-box {
  width: 100%;
  margin: 0 auto;
  max-width: 1340px;
}

.class-box:last-child {
  padding-bottom: 120px;
}

.class {
  width: 24%;
  height: 264px;
  box-shadow: 0px 4px 10px 0px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 15px;
}

.class-image {
  width: 100%;
  height: 196px;
}

.class-image img {
  width: 100%;
  min-height: 196px;
}

.Title2 {
  width: 100%;
  height: 76px;
  margin: 0 auto;
  color: #333;
  font-size: 18px;
  font-weight: bold;
  margin-top: 20px;
  max-width: 1340px;
}

.Title2 img {
  margin-right: 10px;
}

.news-box {
  width: 100%;
  margin: 0 auto;
  max-width: 1340px;
}

.news-b {
  width: 48%;
  background: #ccc;
  position: relative;
}

.news-t {
  width: 80px;
  height: 80px;
  background: #ff8a01;
  text-align: center;
  font-size: 24px;
  color: #fff;
  padding-top: 8px;
  box-sizing: border-box;
  position: absolute;
  top: 0;
  left: 0;
}

.news-n {
  height: 48px;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  position: absolute;
  bottom: 0;
  left: 0;
  color: #fff;
  line-height: 44px;
}

.news-nt {
  width: 100%;
  height: 48px;
  margin-left: 20px;
  color: #fff;
  line-height: 48px;
  font-size: 16px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.news-p img {
  width: 100%;
}

.news {
  width: 48%;
}

.news-bb {
  width: 90%;
  height: 105px;
  border-bottom: 1px solid #b4b8cc;
  padding-top: 16px;
  box-sizing: border-box;
}

.news-date {
  width: 14%;
  height: 70px;
  color: #b0b0b8;
  float: left;
}

.nd-t {
  color: #b0b0b8;
  font-size: 56px;
  font-weight: lighter;
  width: 60px;
  height: 60px;
}

.nd-c {
  color: #b0b0b8;
  font-size: 13px;
  font-weight: lighter;
}

.news-nb {
  float: left;
  margin-left: 20px;
  width: 80%;
  margin-top: 6px;
}

.news-title a {
  color: #000;
  line-height: 30px;
  height: 30px;
  font-size: 16px;
}

.news-content {
  color: #919199;
  font-size: 14px;
  line-height: 20px;
  white-space: pre-wrap;
  overflow: hidden;
  width: 100%;
  height: 40px;
}

.gy-box {
  width: 100%;
  margin: 0 auto;
  margin-top: 20px;
  max-width: 1340px;
}

.label {
  width: 240px;
  height: 60px;
  background-image: url(../images/bt.png);
  color: #fff;
  line-height: 60px;
  padding-left: 30px;
  box-sizing: border-box;
  font-size: 20px;
}

.gongyi {
  font-size: 16px;
  color: #666;
  margin-left: 40px;
}

.xuanz {
  font-weight: bolder;
  color: #1a2650;
}

.gongyi a {
  color: #666;
}

.gongyi a:hover {
  color: #1a2650;
}

.gongyi-p {
  width: 424px;
  height: 240px;
  overflow: hidden;
}

.gongyi-p img {
  width: 100%;
}

.gongyi-t {
  height: 240px;
  line-height: 24px;
  width: 896px;
  margin-left: 20px;
}

.list-box {
  width: 80%;
  padding-left: 10%;
}

.chap-title {
  width: 100%;
  line-height: 32px;
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 10px;
  text-align: center;
  border-bottom: 1px solid #dedede;
  padding-bottom: 15px;
}

.chap-title2 {
  font-size: 16px;
  font-weight: normal;
}

.author {
  width: 100%;
  text-align: center;
  margin-bottom: 30px;
  font-size: 14px;
  line-height: 28px;
  color: #a3a3a3;
}

@media screen and (max-width: 768px) {
  /* 首页 */
  .content {
    width: 92%;
    margin: 0 auto;
  }

  .top-Content {
    flex-direction: column;
    align-items: center;
  }

  .top {
    height: 120px;
  }

  .logo {
    width: 100%;
    /* text-align: center; */
  }

  .logo img {
    width: 70%;
    max-width: 180px;
  }

  .Navigation {
    justify-content: space-around;
    width: 100%;
    margin-top: 10px;
  }

  .Navigation li {
    padding-top: 0;
  }

  div.banner {
    overflow: hidden;
  }

  .news-box {
    flex-direction: column;
    align-items: center;
  }

  .news-b,
  .news {
    width: 100%;
  }

  .news-bb {
    width: 100%;
  }

  .lecture-box {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: center;
    height: auto;
  }

  .lecture {
    width: 100%;
    height: auto;
    margin-bottom: 10px;
  }

  .lecture-image {
    height: auto;
  }

  .class {
    width: 48%;
    height: auto;
  }

  .class-image {
    height: auto;
  }

  .class-image img {
    min-height: 0;
  }

  /* 公益讲座 */
  .gy-box {
    width: 92%;
    margin-top: 20px;
  }

  .label {
    width: 160px;
    padding-left: 5px;
  }
}