:root {
  --page-bg: #637188;
  --paper: #fff;
  --paper-edge: #8793a6;
  --text: #5d6060;
  --heading: #44566a;
  --link: #2f6246;
  --accent: #006633;
  --rule: #e2e3df;
  --panel: #d9d9d4;
}

* {
  box-sizing: border-box;
  font-family: "Helvetica Neue", Arial, Helvetica, "Microsoft YaHei", sans-serif;
}

html {
  height: 100%;
  font-size: 62.5%;
  overflow: hidden;
}

body {
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--page-bg);
  color: var(--text);
  font-size: 1.46rem;
  line-height: 1.55;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--accent);
}

.site-header {
  background: var(--page-bg);
}

.nav {
  display: flex;
  align-items: center;
  max-width: 1340px;
  height: 58px;
  margin: 0 auto;
  padding: 0 3rem;
  background: var(--paper);
  border-right: 24px solid var(--paper-edge);
  border-left: 24px solid var(--paper-edge);
  border-bottom: 1px solid var(--rule);
}

.nav-links {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.nav-links a {
  display: block;
  padding: 1.36rem 1.2rem;
  color: var(--accent);
  font-size: 1.42rem;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease, opacity 160ms ease;
}

.nav-links a.active {
  background: var(--accent);
  color: #fff;
}

.nav-links a:hover {
  background: rgba(0, 102, 51, 0.08);
  color: #144f2d;
}

.nav-links a.active:hover {
  background: var(--accent);
  color: #fff;
  opacity: 0.88;
}

.page-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  gap: 4rem;
  max-width: 1340px;
  height: min(720px, calc(100vh - 58px));
  margin: 0 auto;
  padding: 1.8rem 3rem 2.4rem;
  overflow: hidden;
  background: var(--paper);
  border-left: 24px solid var(--paper-edge);
  border-right: 24px solid var(--paper-edge);
}

.content {
  max-width: 900px;
}

.content-wide {
  max-width: 930px;
}

.page-shell-simple .content-wide {
  max-width: 1190px;
  margin: 0 auto;
}

.page-shell-simple {
  display: block;
  height: auto;
  min-height: 305px;
  max-height: calc(100vh - 58px);
  padding-top: 2.2rem;
}

h1,
h2,
h3 {
  color: var(--heading);
  line-height: 1.25;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: 2.32rem;
}

h2 {
  margin: 1.35rem 0 0.38rem;
  font-size: 1.68rem;
}

p {
  margin: 0 0 0.75rem;
}

ul {
  margin: 0.25rem 0 0.8rem;
  padding-left: 2.2rem;
}

li {
  margin: 0.06rem 0;
}

.paper-list li {
  margin-bottom: 0.5rem;
  line-height: 1.45;
}

.paper-list-detailed li {
  margin-bottom: 1.5rem;
}

.paper-list a {
  font-weight: 700;
}

.paper-actions {
  margin-top: 0.55rem;
}

.paper-actions a {
  display: inline-block;
  margin-right: 0.55rem;
  padding: 0.12rem 0.45rem;
  border: 1px solid var(--rule);
  font-size: 1.25rem;
  font-weight: 400;
}

.paper-note {
  color: var(--text);
  white-space: nowrap;
}

.publication-list {
  margin: 0.35rem 0 0;
  padding-left: 0;
  list-style: none;
}

.publication-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 2.8rem;
  align-items: start;
  margin-bottom: 1.5rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--rule);
}

.publication-copy > a {
  font-weight: 700;
}

.authors {
  margin-top: 0.35rem;
}

.paper-figure {
  margin: 0;
  border: 1px solid var(--rule);
  background: #fff;
}

.paper-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.project-list li {
  margin-bottom: 0.72rem;
}

.project-meta {
  color: #777b78;
  font-size: 1.28rem;
}

.education-list {
  margin: 0.4rem 0 0;
  padding-left: 1.85rem;
}

.education-list li {
  margin: 0 0 1.75rem;
  color: var(--text);
  line-height: 1.38;
}

.education-list strong,
.education-list span {
  display: block;
}

.education-list span {
  margin-left: 1rem;
}

.sidebar {
  padding-top: 0.2rem;
}

.avatar {
  display: block;
  width: 100%;
  max-width: 180px;
  margin: 0 auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--rule);
}

.contact-card {
  margin-top: 1.4rem;
}

.contact-card h2 {
  margin: 0 0 0.8rem;
  padding: 0.55rem 0.8rem;
  background: var(--panel);
  color: #565d63;
  font-size: 1.55rem;
}

.contact-card p {
  margin: 0;
  padding: 0.72rem 0.8rem;
  border-bottom: 1px solid var(--rule);
  font-size: 1.3rem;
  line-height: 1.42;
}

.profile-links a {
  display: inline-block;
  margin: 0.16rem 0;
}

@media (max-width: 860px) {
  html,
  body {
    height: auto;
    overflow: auto;
  }

  body {
    background: var(--paper);
  }

  .nav {
    padding: 1.2rem 1.8rem 0;
    height: auto;
    border: 0;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .nav-links a {
    padding: 1rem 1.1rem;
  }

  .page-shell {
    display: flex;
    flex-direction: column;
    height: auto;
    overflow: visible;
    padding: 2.2rem 1.8rem 4rem;
    border: 0;
  }

  .publication-item {
    display: block;
  }

  .paper-figure {
    max-width: 320px;
    margin-top: 1rem;
  }

  .sidebar {
    order: -1;
    padding-top: 0;
  }

  .avatar {
    max-width: 170px;
  }
}