@charset "utf-8";
html {
  color: #000;
  background: #fff;
  overflow-y: scroll;
  -webkit-text-size-adjust: none;
  -ms-text-size-adjust: none;
}
html * {
  outline: 0;
  -webkit-text-size-adjust: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
html,
body {
  font-family: sans-serif;
}
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,
hr,
button,
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  margin: 0;
  padding: 0;
}
input,
select,
textarea {
  font-size: 100%;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
fieldset,
img {
  border: 0;
}
abbr,
acronym {
  border: 0;
  font-variant: normal;
}
del {
  text-decoration: line-through;
}
address,
caption,
cite,
code,
dfn,
em,
th,
var {
  font-style: normal;
  font-weight: 500;
}
ol,
ul {
  list-style: none;
}
caption,
th {
  text-align: left;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: 100%;
  font-weight: 500;
}
q:before,
q:after {
  content: "";
}
sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}
sup {
  top: -0.5em;
}
sub {
  bottom: -0.25em;
}
a:hover {
  text-decoration: underline;
}
ins,
a {
  text-decoration: none;
}

.container{
  height: 100vh !important;
}


.kf {
  position: fixed;
  top: 25%;
  right: 20px;
  animation: pulse 2s infinite ease-in-out;
  z-index: 9999;
  transform-origin: center; /* 确保缩放是从中心开始的 */
}

.kf img {
  width: 70px;
  transition: transform 0.3s; /* 添加平滑过渡效果 */
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2); /* 放大到1.2倍 */
  }
  100% {
    transform: scale(1);
  }
}

/* 掉落动画 */
@keyframes dropIn {
  0% { transform: translateY(-100vh); opacity: 0; }
  60% { transform: translateY(30px); opacity: 1; }
  75% { transform: translateY(-10px); }
  90% { transform: translateY(5px); }
  100% { transform: translateY(0); }
}

.drop-animation {
  animation: dropIn 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  transform-origin: center top;
}