* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
}

body {
  padding: 2rem;
  font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Microsoft YaHei UI", "WenQuanYi Micro Hei", Arial, sans-serif;

  background-color: #f6f6f6;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100%25' height='100%25' viewBox='0 0 1600 800'%3E%3Cg %3E%3Cpolygon fill='%23eaf0f1' points='800 100 0 200 0 800 1600 800 1600 200'/%3E%3Cpolygon fill='%23dfebec' points='800 200 0 400 0 800 1600 800 1600 400'/%3E%3Cpolygon fill='%23d3e5e7' points='800 300 0 600 0 800 1600 800 1600 600'/%3E%3Cpolygon fill='%23c8e0e3' points='1600 800 800 400 0 800'/%3E%3Cpolygon fill='%23bcdade' points='1280 800 800 500 320 800'/%3E%3Cpolygon fill='%23b1d5d9' points='533.3 800 1066.7 800 800 600'/%3E%3Cpolygon fill='%23a5cfd4' points='684.1 800 914.3 800 800 700'/%3E%3C/g%3E%3C/svg%3E");
  /* background by SVGBackgrounds.com */
  background-attachment: fixed;
  background-size: cover;
  background-position: center;

  color: #181d25;
  min-height: 100%;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin-bottom: 2.5rem;
  border: 3px solid #f6f6f6;
  box-shadow: 0px 16px 40px rgba(63, 191, 191, 0.8);
}

header {
  margin-bottom: 3rem;
  text-align: center;
}

header p {
  font-weight: 300;
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
  color: #525252;
}

header h1 {
  font-weight: 700;
  font-size: 2rem;
  line-height: 85%;
}

nav {
  width: 100%;
  display: block;
  max-width: 380px;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;

  padding: 0.75rem;
  margin-bottom: 1rem;
  border-radius: 8px;

  text-align: center;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.25rem;
  color: #fff;

  box-shadow: 0px 0.5rem 1.5rem -0.25rem var(--link-color);
  background-color: var(--link-color);

  transition: box-shadow 0.5s;
}

a:hover {
  box-shadow: 0px 0.5rem 1.5rem 0rem var(--link-color);
}

i {
  margin-right: 0.5rem;
  font-size: 1.5rem;
}

#aliyunpan {
  --link-color: #5c82fe
}

#baidupan {
  --link-color: #3090fe
}

#hecaiyun {
  --link-color: #3370ff
}

#googledrive {
  --link-color: #3989f3
}

#onedrive {
  --link-color: #007bd3
}

#broken {
  --link-color: #37474f
}

#broken:hover a {
  content: "发送邮件"
}

#wechat-browser {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;

  padding: 0rem;
  margin-top: 1rem;
  margin-bottom: 1rem;
  border-radius: 8px;

  text-align: center;
  text-decoration: none;
  font-weight: 400;
  font-size: 0.8rem;
  color: #000;
}