* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
fieldset,
img {
  border: none;
}
h3,
h4 {
  font-size: 100%;
  font-weight: normal;
}
ol,
ul {
  list-style: none;
}
select,
input,
textarea {
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  font-size: 14px;
  margin: 0;
  padding: 0;
  outline: none;
  vertical-align: middle;
}
textarea {
  resize: none;
}
table {
  border-collapse: collapse;
}
body {
  font-size: 16px;
  color: #333333;
  background: #a46c35;
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
}
a {
  color: #303030;
  text-decoration: none;
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  font-size: 16px;
  transition: 0.5s all;
}
.clearfix::after {
  content: '';
  display: block;
  clear: both;
}
.banner {
  height: 721px;
  background: url(../images/banner.jpg) center center no-repeat;
}
.banner .wrap {
  width: 1200px;
  margin: 0 auto;
  padding-top: 390px;
  text-align: center;
}
.bookwrap {
  width: 1205px;
  height: 896px;
  margin: 50px auto;
  background: url(../images/book_bg.png) center center no-repeat;
  background-size: contain;
  position: relative;
}
.bookwrap .next {
  width: 66px;
  height: 41px;
  background: url(../images/next.png) center center no-repeat;
  position: absolute;
  right: -94px;
  top: 50%;
  margin-top: -33px;
  cursor: pointer;
  display: none;
}
.bookwrap .prev {
  width: 66px;
  height: 41px;
  background: url(../images/prev.png) center center no-repeat;
  position: absolute;
  left: -94px;
  top: 50%;
  margin-top: -33px;
  cursor: pointer;
  display: none;
}
.bookwrap .book {
  display: none;
}
.wrap {
  width: 1200px;
  margin: 0 auto;
}
.nav {
  height: 316px;
  width: 1200px;
  background: url(../images/bookshelf.png) center bottom no-repeat;
}
.nav ul {
  width: 1032px;
  height: 250px;
  margin: 0 auto;
}
.nav ul li {
  margin: 38px 20px 0 0;
  float: left;
  width: 155px;
  height: 212px;
}
.nav ul li:last-child {
  margin-right: 0;
}
.nav ul li img {
  width: 100%;
  height: 100%;
}
.nav ul .rdwdactive {
  margin-top: 0;
}
.nav ul .rdwdactive::after {
  content: "";
  display: block;
  width: 32px;
  height: 28px;
  background: url(../images/sjx.png) center center no-repeat;
  margin: 8px auto 0;
}
.booklet .b-wrap {
  background: url(../images/page.jpg) center center no-repeat;
  background-size: cover;
  top: 15px;
  left: 20px !important;
}
.booklet .b-wrap .content {
  margin: 107px auto 0;
  width: 456px;
  height: 700px;
  position: relative;
}
.booklet .b-wrap .content .title {
  position: absolute;
  top: 0;
  left: 0;
  color: #1f1f1f;
  font-size: 28px;
  font-weight: 700;
  width: 100%;
  text-align: center;
}
.booklet .b-wrap .content .substance {
  position: absolute;
  left: 0;
  bottom: 0;
  overflow-y: scroll;
  width: 100%;
  height: 633px;
  color: #414141;
  font-size: 16px;
  padding: 0 20px;
}
.booklet .b-wrap .content .substance img {
  max-width: 100%;
}
.booklet .b-wrap .content .substance::-webkit-scrollbar {
  width: 5px;
  height: 5px;
  /**/
}
.booklet .b-wrap .content .substance::-webkit-scrollbar-track {
  background: #dcdcdc;
  border-radius: 2px;
}
.booklet .b-wrap .content .substance::-webkit-scrollbar-thumb {
  background: #b6b6b6;
  border-radius: 10px;
}
.booklet .b-wrap .content .substance::-webkit-scrollbar-corner {
  background: #dcdcdc;
}
.booklet .b-wrap .content .substance::scrollbar {
  width: 5px;
  height: 5px;
  /**/
}
.booklet .b-wrap .content .substance::scrollbar-track {
  background: #dcdcdc;
  border-radius: 2px;
}
.booklet .b-wrap .content .substance::scrollbar-thumb {
  background: #b6b6b6;
  border-radius: 10px;
}
.booklet .b-wrap .content .substance::scrollbar-corner {
  background: #dcdcdc;
}
.booklet .b-wrap-right {
  left: 0px !important;
}