.wrap {
  width: 100%;
  margin: 0 auto;
}
.cont {
  width: 1200px;
  margin: 0 auto;
}
html,
body {
  margin: 0 auto;
  overflow-x: hidden;
}
p {
  color: #333;
  text-align: justify;
  font-size: 16px;
  line-height: 1.5;
}
a:hover,
a:active,
a:visited,
a:link {
  text-decoration: none;
}
.flex-sb {
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-between;
}
.nav-wrap {
  height: 80px;
  top: 0;
  left: 0;
  margin-top: -80px;
  position: relative;
  background-color: rgba(0, 0, 0, 0.4);
  transition:  background-color 500ms;
}
.nav-wrap.fix{
  position: fixed;
  margin-top: 0;
  z-index: 999;
}
.nav-wrap .logo {
  line-height: 80px;
}
.nav-wrap .nav-list {
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-between;
  width: 100%;
}
.nav-wrap .nav-list a {
  display: block;
  line-height: 80px;
  padding: 0 10px;
  color: #fff;
}
.nav-wrap.fix{
  background-color: #B9222E;
  box-shadow: 0 0 40px 0 rgba(0, 0, 0, 0.4);
}
.nav-wrap .nav-list li:hover a,
.nav-wrap .nav-list li.active a {
  background-color: rgba(255, 255, 255, 0.4);
}
.m-nav-btn {
  display: none;
}
section {
  padding: 80px 0;
}
.title-wrap {
  margin: 0 auto;
}
.content {
  padding-top: 40px;
}
.pc-hide{
  display: none;
}
@media (max-width: 768px) {
  section{
    padding: 1rem 0;
  }
  .pc-show{
    display: none;
  }
  .pc-hide{
    display: block;
  }
  .wrap {
    max-width: 7.5rem;
    overflow: hidden;
  }
  .wrap .cont {
    width: 6.9rem;
  }
  .content{
    padding-top: .3rem;
  }
  p{
    font-size: .28rem;
  }
  .nav-wrap {
    height: 1rem;
    overflow: visible;
    background: #fff;
    margin-top: unset;
  }
  .nav-wrap .logo {
    line-height: 1rem;
  }
  #nav .pc-hide{
    height: .8rem;
    line-height: 1rem;
  }
  #nav .pc-hide img{
    height: 100%;
  }
  .nav-wrap .m-nav-btn {
    width: 1rem;
    height: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
  }
  .nav-wrap.fix{
    background-color: #fff;
  }
  .nav-wrap .m-nav-btn span {
    display: block;
    width: 0.6rem;
    height: 0.06rem;
    border-radius: 0.03rem;
    margin: 0.05rem 0;
    background-color: #B9222E;
    transition: 500ms;
  }
  .nav-wrap .m-nav-btn.active span:nth-child(1) {
    transform-origin: left;
    transform: rotate(44deg);
    margin-bottom: 0.1rem;
    transition: 500ms;
  }
  .nav-wrap .m-nav-btn.active span:nth-child(2) {
    width: 0;
    transition: 500ms;
  }
  .nav-wrap .m-nav-btn.active span:nth-child(3) {
    transform-origin: left;
    transform: rotate(-44deg);
    margin-top: 0.1rem;
    transition: 500ms;
  }
  .nav-wrap .nav-list {
    display: none;
    position: absolute;
    top: 1rem;
    right: 0;
    background-color: #fff;
    box-shadow: 0 10px 20px 0 rgba(0, 0, 0, 0.1);
    width: auto;
  }
  .nav-wrap .nav-list a {
    display: block;
    line-height: 0.8rem;
    color: #B9222E;
    text-align: right;
  }
}