body {
  padding-bottom: 0;
  font-size: 12px;
}

/* --------------top-------------- */
.wzbox {
  width: 750px;
  margin: 0 auto;
  padding-top: 35%;
}
#btn1 {
  display: block;
  text-align: center;
  border-radius: 5px;
  width: 330px;
  line-height: 66px;
  font-size: 32px;
  color: #f9eb7b;
  font-weight: bold;
  background: #000;
  margin: 0 auto;
}
.wzbox li {
  padding-bottom: 35px;
}
.btn2 {
  background: url(../image/k2.png);
  width: 220px;
  height: 64px;
  display: block;
  margin: 0 auto;
}

@media screen and (min-width: 750px) {
  #btn1 {
    width: 550px;
    line-height: 80px;
    font-size: 40px;
  }
  .btn2 {
    background: url(../image/k2.png);
    width: 330px;
    height: 100px;
    display: block;
    margin: 0 auto;
    background-size: 100% 100%;
  }
}