body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
textarea,
p,
blockquote,
th,
td {
    margin: 0;
    padding: 0;
}

html {
    height: 100%;
}

body {
    font-family: "Microsoft YaHei", Arial, Verdana, SimSun, SimHei, Helvetica, sans-serif;
    width: 100%;
    height: 100%;
    background-image:linear-gradient(0, #540508, #000);
    background-repeat: no-repeat;
    background-attachment: fixed;
}
.container {
  max-width: 1920px;
  /* height: 1000px; */
  margin: 0 auto;
  background: url("../images/top.png") no-repeat;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.line{
    position: absolute;
    right: 5px;
    top: 160px;
    cursor: pointer;
}
.kefu{
    position: absolute;
    right: 5px;
    top: 250px;
    cursor: pointer;
}
.btn{
    position: absolute;
    cursor: pointer;
    bottom: 0;
}
.main{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}