* {
    margin: 0;
    padding: 0;
}

img {
  -webkit-user-drag: none; 
}

ul,
ol {
  list-style: none;
}

a {
    text-decoration: none;
    color: #333;
  }

body {
  background-color: #fff6e9;
}

.pc {
    background: url(../images/bg.png) no-repeat center;
    background-size: cover;
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.l img{
  width: 40rem;
  padding-top: 5rem;
}

.content {
    width: 75rem;
    min-height: 67rem;
    margin: 0 auto;
    position: relative;
    display: flex; 
}

.r {
  margin-left: 2rem;
  margin-top: 4rem;
}

.r .xianlu img{
  width: 100%;
  padding-top: 0.8rem;
}

.r .xianlu img:hover {
  filter: brightness(1.2); 
}

.r .logo img{
    width: 100%;
    margin-top: 5rem;
    margin-bottom: 1rem;
}

.QR{
  background: url(../images/QR_bg.png) no-repeat center;
  background-size: cover;
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 978px;
  max-height: 376px;
  margin-top: 1rem;
}

.QR img{
  width: 11vw;
  margin: 0.9rem;
}

  .kefu {
    position: fixed; 
    bottom: 5rem; 
    right: 10px; 
    z-index: 1; 
  }
  
  .kefu img {
    width: 6vw; 
    height: auto; 
  }
  .kefu img:hover {
    filter: brightness(1.2); 
  }