* {
  padding: 0;
  margin: 0;
}
html,
body {
  font-family: '微软雅黑';
}
ul,
li {
  list-style: none;
}
a {
  text-decoration: none;
}
.margin40 {
  margin-top: 60px;
}
.margin50 {
  margin-top: 50px;
}
.margin60 {
  margin-top: 60px;
}
.navbar-toggler {
  position: absolute;
  right: 15px;
}
.footer-wrap {
  background: #252525;
}
.footer-wrap {
  background: #252525;
  padding-top: 40px;
}
.footer-wrap h3 {
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding-bottom: 20px;
  font-size: 16px;
  font-weight: 500;
}
.footer-wrap ul li {
  font-size: 14px;
  font-weight: bold;
  margin-bottom: 10px;
  color: #939393;
}
.footer-wrap ul li a {
  font-size: 14px;
  font-weight: bold;
  color: #939393;
}
.footer-wrap ul li a:hover {
  color: #fff;
  text-decoration: none;
}
.footer-list-box div {
  margin-bottom: 15px;
}
.beian {
  text-align: center;
  margin: 0 auto;
  font-size: 12px;
}
.beian a {
  color: #939393;
}
.fiexd-box {
  position: fixed;
  right: 20px;
  bottom: 100px;
  z-index: 999;
}
.fiexd-box ul li {
  width: 50px;
  height: 50px;
  text-align: center;
  line-height: 50px;
  background: #312f32;
  border-bottom: 1px solid #5a5757;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -ms-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
}
.fiexd-box ul li a {
  color: #fff;
  text-decoration: none;
}
.fiexd-box ul li a i {
  font-size: 20px;
}
.fiexd-box ul li a:hover {
  text-decoration: none;
}
.fiexd-box ul li:nth-of-type(1) {
  position: relative;
  z-index: 99;
}
.fiexd-box ul li:nth-of-type(1) span {
  position: absolute;
  right: 50px;
  top: 0;
  display: block;
  width: 0px;
  height: 50px;
  line-height: 50px;
  overflow: visible;
  background: #312f32;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -ms-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
  z-index: -1;
  opacity: 0;
}
.fiexd-box ul li:nth-of-type(1):hover span {
  width: 100px;
  opacity: 1;
}
.fiexd-box ul li.go-back {
  background: #363638;
  border-bottom: none;
}
.top-img {
  width: 100%;
  overflow: hidden;
}
.top-img img {
  display: block;
  width: 100%;
  height: auto;
}
.pagination {
  padding: 0 10px;
  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  border-radius: 10px;
  overflow: hidden;
  margin-top: 20px;
}
.pagination li {
  float: left;
  display: block;
  padding: 0 12px;
  text-align: center;
  height: 30px;
  line-height: 30px;
  overflow: hidden;
  box-sizing: border-box;
  border: 1px solid #dee2e6;
  font-size: 13px;
}
.pagination li a {
  display: block;
  color: #007bff;
  width: 100%;
  height: 100%;
}
.pagination li.thisclass {
  background: #252525;
  color: #fff;
}