html {
  scroll-behavior: smooth;
}

body {
  background-color: #fafafa;
  padding:50px;
  font: 15px/1.7 "Nunito Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  color:#595959;
  font-weight:400;
}

h1, h2, h3, h4, h5, h6 {
  color:#222;
  margin:0 0 20px;
}

p, ul, ol, table, pre, dl {
  margin:0 0 20px;
}

h1, h2, h3 {
  line-height:1.1;
}

h1 {
  font-size:30px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 20px;
  color:#393939;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h3, h4, h5, h6 {
  color:#494949;
  font-weight: 500;
}

a {
  color:#2563eb;
  text-decoration:none;
  transition: color 0.2s;
}

a:hover {
  color:#60a5fa;
}

a small {
  font-size:11px;
  color:#777;
  margin-top:-0.3em;
  display:block;
}

a:hover small {
  color:#777;
}

.wrapper {
  width:860px;
  margin:0 auto;
}

blockquote {
  border-left:1px solid #e5e5e5;
  margin:0;
  padding:0 0 0 20px;
  font-style:italic;
}

code, pre {
  font-family:Monaco, Bitstream Vera Sans Mono, Lucida Console, Terminal, Consolas, Liberation Mono, DejaVu Sans Mono, Courier New, monospace;
  color:#333;
  font-size:12px;
}

pre {
  padding:8px 15px;
  background: #f8f8f8;
  border-radius:5px;
  border:1px solid #e5e5e5;
  overflow-x: auto;
}

table {
  width:100%;
  border-collapse:collapse;
}

th, td {
  text-align:left;
  padding:5px 10px;
  border-bottom:1px solid #e5e5e5;
}

dt {
  color:#444;
  font-weight:500;
}

th {
  color:#444;
}

img {
  max-width:100%;
}

header {
  width:230px;
  float:left;
  position:fixed;
  -webkit-font-smoothing:subpixel-antialiased;
}

header ul {
  list-style:none;
  padding: 5px;
}

header li {
  margin: 10px 0;
}

header li a {
  color:#222;
  text-decoration:none;
}

header li a:hover {
  color:#1d4ed8;
}

section {
  width:600px;
  float:right;
  padding-bottom:50px;
}

small {
  font-size:11px;
}

hr {
  border:0;
  background:#e5e5e5;
  height:1px;
  margin:0 0 20px;
}

footer {
  width:170px;
  float:left;
  position:fixed;
  bottom:50px;
  -webkit-font-smoothing:subpixel-antialiased;
  border-top: 1px solid #e5e5e5;
  padding-top: 12px;
  color: #aaa;
}

footer ul {
  list-style:none;
  height:40px;
  padding:0;
}

footer li {
  width:40px;
  float:left;
  height:40px;
}

footer li a {
  color:#222;
  text-decoration:none;
}

footer li a:hover {
  color:#1d4ed8;
}

@media print, screen and (max-width: 960px) {

  div.wrapper {
    width:auto;
    margin:0;
  }

  header, section, footer {
    float:none;
    position:static;
    width:auto;
  }

  header {
    padding:0;
    text-align:center;
    margin-bottom:20px;
  }

  header .circle-image {
    display: block;
    margin: 0 auto 15px;
  }

  section {
    border:1px solid #e5e5e5;
    border-width:1px 0;
    padding:20px 0;
    margin:0 0 20px;
  }

  header a small {
    display:inline;
  }

  header ul {
    position:static;
  }
}

@media print, screen and (max-width: 720px) {
  body {
    word-wrap:break-word;
  }

  header {
    padding:0;
  }

  header ul, header p.view {
    position:static;
  }

  pre, code {
    word-wrap:normal;
  }
}

@media print, screen and (max-width: 480px) {
  body {
    padding:15px;
  }

  header ul {
    width:99%;
  }

  header li, header ul li + li + li {
    width:33%;
  }
}

@media print {
  body {
    padding:0.4in;
    font-size:12pt;
    color:#444;
  }
}


ul.pub li {
  margin: 0 0 15px 0;
}

.paper-title {
  padding: 3px 3px 0px 3px;
  color: #1a1a2e;
  font-weight: 600;
  font-size: 1em;
}

ul.pub li em:not(.paper-title) {
  color: #888;
  font-size: 0.9em;
}

.paper-link {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 3px;
  background-color: #f0f0f0;
  color: #555;
  font-size: 0.9em;
}

.paper-link:hover {
  background-color: #60a5fa;
  color: #fff;
}

.circle-image {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

header h1 {
  display: inline-block;
  margin-top: 0.3em;
  margin-bottom: 0.4em;
}

header .chinese-name {
  display: inline-block;
  font-size: 1.6em;
  text-indent: 10px;
  margin-bottom: 0.4em;
}

.social-icon {
  font-size: 1.8em;
  color: black;
  margin-right: 0.15em;
  transition: color 0.2s;
}

.social-icon:hover {
  color: #2563eb;
}

.research-subtitle {
  font-size: 0.7em;
  font-weight: normal;
  color: #777;
}

@media (prefers-color-scheme: dark) {
  body {
    background-color: #1e1e1e;
    color: #d1d5db;
  }

  h1, h2, h3, h4, h5, h6 {
    color: #e5e7eb;
  }

  h2 {
    color: #d1d5db;
  }

  a {
    color: #60a5fa;
  }

  a:hover {
    color: #93bbfd;
  }

  header li a,
  footer li a {
    color: #e5e7eb;
  }

  header li a:hover,
  footer li a:hover {
    color: #60a5fa;
  }

  .social-icon {
    color: #e5e7eb;
  }

  .social-icon:hover {
    color: #60a5fa;
  }

  .paper-title {
    color: #e5e7eb;
  }

  ul.pub li em:not(.paper-title) {
    color: #9ca3af;
  }

  .paper-link {
    background-color: #374151;
    color: #d1d5db;
  }

  .paper-link:hover {
    background-color: #60a5fa;
    color: #fff;
  }

  .circle-image {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }

  .research-subtitle {
    color: #9ca3af;
  }

  footer {
    border-top-color: #333;
    color: #666;
  }

  blockquote {
    border-left-color: #333;
  }

  code, pre {
    color: #d1d5db;
  }

  pre {
    background: #374151;
    border-color: #333;
  }

  hr {
    background: #333;
  }

  th, td {
    border-bottom-color: #333;
  }

  section {
    border-color: #333;
  }
}