.pos-header {
  height: 58px;
  width: 100%;
  position: absolute;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 16;
  box-sizing: border-box;
  overflow: hidden;
  margin-top: -58px;
}
.pos-header .fixed {
  width: 100%;
  position: fixed;
  background: #f9f9f9;
  margin-top: -503px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
  border-top: 1px solid rgba(0, 0, 0, 0.2);
}
.pos-header .fixed .bocweb-nav {
  animation: showUp 1.5s ease; /*ease单次执行动画，animation绑定动画效果*/
  -moz-animation: showUp 1.5s ease; /* Firefox */
  -webkit-animation: showUp 1.52s ease; /* Safari and Chrome */
  -o-animation: showUp 1.5s ease; /* Opera */
  transition: 1.5s;
  opacity: 1;
}
.pos-header .fixed .bocweb-nav .nav-li .li-top {
  color: #000;
}
.pos-header .fixed .bocweb-nav .nav-li:hover, .pos-header .fixed .bocweb-nav .active {
  background-color: rgba(0, 0, 0, 0.1);
  transition: .5s;
}
.pos-header .myheader {
  display: flex;
  justify-content: center;
}
.pos-header.span {
  background: #f5f5f5;
}
.pos-header .bocweb-nav {
  /* float: right; */
}
.pos-header .bocweb-nav .nav-li {
  float: left;
  text-align: center;
}
.pos-header .bocweb-nav .nav-li .li-bot {
  display: none;
  text-align: center;
  padding: 20px 0;
  box-sizing: border-box;
}
.pos-header .bocweb-nav .nav-li .li-bot a:hover {
  color: #fff;
}
.pos-header .bocweb-nav .nav-li a {
  display: block;
  line-height: 56px;
  color: #fff;
  font-size: 16px;
  text-transform: capitalize;
}
.pos-header .bocweb-nav .nav-li .li-top {
  /* padding: 0 90px; */
  /* width: 100%; */
  height: 100%;
  display: block;
  border-bottom: 2px solid transparent;
  box-sizing: border-box;
  transition: .5s;
}
.pos-header .bocweb-nav .nav-li:hover {
  background-color: rgba(255, 255, 255, 0.3);
  transition: .5s;
}

.model-parent > .model-div:nth-child(odd) {
  background-color: #FFFFFF;
}
.model-parent > .model-div:nth-child(even) {
  background-color: #F3F5FA;
}

.model-div .con-title {
  text-align: center;
  color: #25272A;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}
.model-div .con-title .t01 {
  font-size: 34px;
  line-height: 64px;
  font-weight: 500;
  color: #25272A;
  text-align: center;
}
.model-div .con-title .t02 {
  font-size: 26px;
  font-weight: 500;
  color: #555C66;
  line-height: 41px;
  text-align: center;
  margin-top: 20px;
  margin-left: 5%;
  margin-right: 5%;
}