html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
}
.bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}
.bg img,
.bg .bg-cover {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
}
.bg .bg-cover {
  background: #000;
  opacity: 0;
  filter: alpha(opacity=30);
}
.logo-line {
  height: 10%;
  width: 800px;
  margin: 0 auto 0;
  -webkit-transition: width 0.5s ease-in 0.1s;
  transition: width 0.5s ease-in 0.1s;
  overflow: hidden;
  position: relative;
}
.logo-line.opened {
  width: 90%;
}
.logo-line > div,
.logo-line > a {
  background: url(../img/book-logo.png) no-repeat;
  width: 230px;
  height: 100%;
  position: absolute;
  top: 0;
}
.logo-line .logo-left {
  background: url(../img/logo-left.png) no-repeat center;
  background-size: contain;
  left: 0;
}
.logo-line .logo-right {
  background: url(../img/logo-right.png) no-repeat center;
  background-size: 80%;
  right: 0;
}
.cover {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.cover > div {
  width: 100%;
  height: 720px;
  position: absolute;
  left: 0;
  top: 0;
}
.cover .cover-info {
  top: -100%;
  height: 100%;
  color: #fff;
  text-align: center;
  background: #554b46;
  filter: alpha(opacity=90);
  background: rgba(85, 75, 70, 0.8);
  font-family: arial, 'Microsoft Yahei', '微软雅黑', Tahoma, Arial, Helvetica, STHeiti;
}
.cover .cover-info h2 {
  width: 600px;
  margin: 8% auto 5%;
  font: normal 32px/80px arial, 'Microsoft Yahei', '微软雅黑', Tahoma, Arial, Helvetica, STHeiti;
  border: 2px solid #fff;
  border-left: 0;
  border-right: 0;
}
.cover .cover-info p {
  width: 600px;
  margin: 0 auto 5%;
  font: normal 20px/2 arial, 'Microsoft Yahei', '微软雅黑', Tahoma, Arial, Helvetica, STHeiti;
  text-align: left;
  text-indent: 2em;
}
.cover .cover-info .begin {
  text-decoration: none;
  color: #fff;
  display: inline-block;
  width: 200px;
  height: 40px;
  line-height: 40px;
  border-radius: 20px;
  border: 2px solid #fff;
  font-size: 16px;
}
.cover .cover-info .begin:hover {
  background: #fff;
  color: #554b46;
  font-weight: bold;
}
.cover img {
  position: absolute;
  display: none;
  width: 240px;
  margin-left: -150px;
  border: 10px solid #fff;
  border-bottom: 30px solid #fff;
  background-color: #fff;
}
.book {
  width: 90%;
  margin: 0 auto 0;
  height: 100%;
  position: relative;
  z-index: 8;
  -webkit-perspective: 3000px;
  perspective: 3000px;
}
.book > div {
  position: absolute;
  margin: 0;
}
.book .page {
  width: 50%;
  left: 50%;
  top: 0;
  -webkit-transform-style: preserve-3d;
  -webkit-transform-origin: 0 50%;
  -webkit-transition: transform .5s;
  transform-style: preserve-3d;
  transform-origin: 0 50%;
  transition: transform .5s;
}
.book .page > div {
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
}
.book .page > div.front,
.book .page > div.back {
  position: absolute;
  backface-visibility: hidden;
}
.book .page > div.back {
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
  z-index: 1;
}
.book .page > div h2 {
  width: 80%;
  margin: 12% auto 40px;
  font: normal 36px/1.5 arial, 'Microsoft Yahei', '微软雅黑', Tahoma, Arial, Helvetica, STHeiti;
  padding: 10px 0;
  border: 1px solid #fff;
  border-left: 0;
  border-right: 0;
  color: #fff;
}
.book .page > div h2 a {
  color: #fff;
}
.book .page > div p {
  width: 80%;
  margin: 0 auto 1em;
  font: 200 20px/1.8 arial, 'Microsoft Yahei', '微软雅黑', Tahoma, Arial, Helvetica, STHeiti;
  color: #fff;
  text-indent: 2em;
}
.book .page > div h2 {
  font-size: 24px \9;
  margin: 40px auto 20px \9;
}
.book .page > div p {
  font-size: 14px \9;
}
.book .page > div .inner {
  width: 100%;
}
.book .page.pagey {
  height: 100%;
  width: 100%;
  left: 0;
}
.book .page-info {
  background: url("img/shadow.png") repeat-y 360px 0 #0066ff;
  width: 100%;
  height: 100%;
}
.book .page-imgs {
  z-index: -1;
  height: 100%;
  text-align: center;
}
.book .page-imgs .img {
  max-width: 80%;
  min-width: 60%;
  min-height: 30%;
  margin-top: 10%;
  z-index: 0;
  position: relative;
}
.book .page-imgs .bg-mask,
.book .page-imgs .bg-pic {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  background-color: #fff;
}
.book .page-imgs .bg-mask {
  background: url("img/shadow.png") repeat-y -540px 0 #ffffff;
}
.book .page-imgs .bg-pic + .bg-mask {
  filter: alpha(opacity=85);
  opacity: .85;
}
.book .current {
  z-index: 2;
}
.book .current .front {
  z-index: 1;
}
.book .current + .page {
  z-index: 1;
}
.book .current + .page .back {
  z-index: -1;
}
.book .current .page-imgs {
  z-index: 1;
}
/*webkit下面使用内容居中*/
.ks-webkit .book .page > div {
  /* Safari, Chrome, and Opera */
  display: -webkit-box;
  -webkit-box-pack: center;
  -webkit-box-align: center;
}
.ks-webkit .book .page > div .inner {
  padding-bottom: 20px;
}
.ks-webkit .book .page > div h2,
.ks-webkit .book .page > div .img {
  margin-top: 0;
}
.turn-off {
  -webkit-transform: rotateY(0);
  transform: rotateY(0);
}
.turn-on {
  -webkit-transform: rotateY(-180deg);
  transform: rotateY(-180deg);
}
.foot {
  position: absolute;
  bottom: 0;
  width: 100%;
  text-align: center;
  font-family: arial, 'Microsoft Yahei', '微软雅黑', Tahoma, Arial, Helvetica, STHeiti;
  color: #bbb1ac;
  height: 40px;
  line-height: 40px;
}
.loading {
  background: #666;
  background: rgba(0, 0, 0, 0.5);
  width: 100%;
  height: 100%;
  position: absolute;
  z-index: 5000;
  left: 0;
  top: 0;
}
.loading .process-bar {
  width: 300px;
  height: 28px;
  border: 1px solid #ccc;
  position: absolute;
  left: 50%;
  top: 50%;
  margin-left: -150px;
  margin-top: -10px;
}
.loading .process-bar .bar-inner {
  height: 100%;
  width: 0;
  background: #554b46;
  color: #fff;
  font: bold 14px/2 arial, 'Microsoft Yahei', '微软雅黑', Tahoma, Arial, Helvetica, STHeiti;
  text-indent: 1em;
  overflow: visible;
  white-space: nowrap;
}
.static-btn {
  position: absolute;
  top: 50%;
  margin-top: -20px;
  width: 40px;
  height: 40px;
  background: url(../img/icons.png) no-repeat;
  text-indent: -9999em;
  display: none;
}
.static-btn.btn-prev {
  left: 1%;
  background-position: 0 -1px;
}
.static-btn.btn-next {
  right: 1%;
  background-position: 0 -61px;
}
.container {
  width: 90%;
  height: 100%;
  left: 5%;
  top: 91px;
  overflow: hidden;
  position: absolute;
  display: none;
  background: none;
  *top: 96px;
  *z-index: 10;
}
.container .lmBox {
  top: 10%;
}
@media screen and (max-width: 1400px) {
  .book .page > div h2 {
    font-size: 28px;
  }
  .book .page > div p {
    font-size: 18px;
  }
}
@media screen and (max-width: 1200px) {
  .book .page > div h2 {
    font-size: 24px;
  }
  .book .page > div p {
    font-size: 16px;
  }
  .social {
    right: 10px;
  }
}
@media screen and (max-width: 800px) {
  .book .page > div h2 {
    font-size: 20px;
  }
  .book .page > div p {
    font-size: 14px;
  }
  .static-btn {
    display: none;
  }
  .book,
  .container {
    width: 100%;
    left: 0;
  }
  .social {
    right: 0;
  }
}
/**webkit滚动条样式*/
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  visibility: hidden;
}
::-webkit-scrollbar-thumb {
  -webkit-border-radius: 8px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.2);
}
/**webkit滚动条样式 结束*/