* {
  margin: 0;
  padding: 0;
}
canvas {
  position: absolute;
  /*设置定位*/
  top: 0;
  left: 0;
  z-index: -6;
  opacity: 1;
}
.container {
  background: #000;
  position: relative;
  width: 7.5rem;
  height: auto;
  margin: 0 auto;
}
.container .content {
  width: 7.5rem;
  margin: 0 auto;
  overflow-x: hidden;
  z-index: 99;
  height: auto;
}
.container .content .btn_01 {
  position: relative;
  width: 100%;
  height: 1.2rem;
  margin: 0 auto;
}
.container .content .btn_01 img {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  margin: auto;
  width: 100%;
}
.container .content .pic_01 {
  position: relative;
  width: 100%;
  margin: 0 auto;
}
.container .content .pic_01 img {
  display: block;
  width: 100%;
  margin: 0 auto;
}
.container .content .pic_02 {
  position: relative;
  width: 100%;
  margin: 0 auto;
}
.container .content .pic_02 img {
  display: block;
  width: 100%;
  margin: 0 auto;
}
.container .content .btn_bottom {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 7.5rem;
  height: 1.25rem;
  margin: auto;
  z-index: 99;
  background: url("img/bottom.png") no-repeat;
  background-size: cover;
}
.container .content .btn_bottom img {
  position: absolute;
  right: 0.2rem;
  top: 0.3rem;
  display: block;
  width: 2.51rem;
  height: 0.74rem;
  animation-name: scale;
  animation-duration: 1.5s;
  animation-iteration-count: infinite;
}
@keyframes scale {
  from {
    transform: scale(1);
  }
  50% {
    transform: scale(0.65);
  }
  to {
    transform: scale(1);
  }
}
.kf {
  position: fixed;
  top: 30%;
  right: 0.2rem;
  z-index: 99;
}
.kf img {
  width: 1.3rem;
  height: 1.3rem;
}