body,
html {
  margin: 0;
  padding: 0;
  font-family: "Microsoft YaHei";
  background: #000;
  color: #5d5649;
}

ul,
li,
p,
strong,
h3,
table,
form,
tr,
td,
ol,
dl,
dd,
dt,
map,
area,
h1,
h3,
h2,
h4,
h5,
h6 {
  margin: 0;
  padding: 0;
  list-style: none;
}

img {
  border: 0;
  vertical-align: top;
}

i {
  font-style: normal;
}

a {
  text-decoration: none;
  outline: none;
  color: #fff;
  *hide-focus: expression(this.hideFocus=true);
}

.bg {
  width: 100%;
  height: 100vh;
  background-image: url('../../images/bj.png');
  background-size: cover;
  background-position: center top;
  position: relative;
}

.logo {
  width: 4.11rem;
  height: 1.51rem;
  background-image: url('../../images/logo.png');
  background-size: 100% 100%;
  background-position: center top;
  position: absolute;
  top: 0.71rem;
  left: 50%;
  margin-left: 0.04rem;
  opacity: 0;
  animation: slideInDown 1s ease forwards;
  -webkit-animation: slideInDown 1s ease forwards;
}

.text {
  width: 9.31rem;
  height: 4.59rem;
  background-image: url('../../images/text.png');
  background-size: 100% 100%;
  background-position: center top;
  position: absolute;
  top: 3.06rem;
  left: 50%;
  margin-left: -2.1rem;
}

.download {
  width: 4.04rem;
  height: 1.21rem;
  background-image: url('../../images/download.png');
  background-size: 100% 100%;
  background-position: center top;
  position: absolute;
  top: 8.65rem;
  left: 50%;
  margin-left: 0.27rem;
  cursor: pointer;
}

.copyright {
  width: 511px;
  height: 40px;
  background-image: url('../../images/copyright.png');
  background-size: 100% 100%;
  background-position: center top;
  position: absolute;
  bottom: 0;
  left: 50%;
  margin-left: -246px;
}

.bottom {
  width: 375px;
  height: 53px;
  background-image: url('../../images/bottom.png');
  background-size: 100% 100%;
  background-position: center top;
  position: absolute;
  bottom: 20px;
  right: 0;
}

@keyframes slideInDown {
  0% {
    transform: translateY(-100%);
    opacity: 0;
    -webkit-transform: translateY(-100%);
    -moz-transform: translateY(-100%);
    -ms-transform: translateY(-100%);
    -o-transform: translateY(-100%);
  }
  100% {
    transform: translateX(0);
    opacity: 1;
    -webkit-transform: translateX(0);
    -moz-transform: translateX(0);
    -ms-transform: translateX(0);
    -o-transform: translateX(0);
  }
}