:root {
  --background: #ffffff;
  --text: #494e52;
  --heading: #2f3336;
  --muted: #6f777d;
  --border: #e5e5e5;
  --link: #2f6f9f;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 82px; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; }
.masthead { position: sticky; top: 0; z-index: 20; background: #fff; border-bottom: 1px solid var(--border); }
.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1280px, calc(100% - 40px));
  min-height: 64px;
  margin: 0 auto;
  gap: 32px;
}
.site-name { color: var(--heading); font-size: 1rem; font-weight: 700; white-space: nowrap; }
.site-name:hover { text-decoration: none; }
nav { display: flex; align-items: center; gap: 30px; }
nav a { color: var(--text); font-size: .95rem; font-weight: 600; }
.page-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 820px);
  gap: 64px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 46px 0 80px;
}
.sidebar { position: sticky; top: 100px; align-self: start; }
.author-avatar {
  display: block;
  width: 175px;
  height: 175px;
  padding: 5px;
  border: 1px solid var(--border);
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 8%;
}
.author-content h1 { margin: 14px 0 0; color: var(--heading); font-size: 1.25rem; line-height: 1.25; }
.chinese-name { margin: 4px 0 0; color: var(--muted); font-size: .9rem; }
.author-bio { margin: 14px 0 18px; font-size: .9rem; line-height: 1.5; }
.author-links { display: flex; flex-direction: column; gap: 8px; margin: 0; padding: 0; list-style: none; }
.author-links li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  align-items: start;
  gap: 7px;
  margin: 0;
  font-size: .88rem;
  line-height: 1.45;
}
.author-links li > span:first-child { width: 20px; text-align: center; }
.github-mark { width: 16px; height: 16px; margin: 2px auto 0; }
.page-content { min-width: 0; }
.page-content section { padding: 0 0 38px; scroll-margin-top: 86px; }
.page-content section + section { padding-top: 20px; }
.page-content h2 {
  margin: 0 0 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  color: var(--heading);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.25;
}
.page-content p { margin: 0 0 16px; }
.entry { margin-bottom: 26px; }
.entry:last-child { margin-bottom: 0; }
.entry-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; }
.entry h3 { margin: 0 0 5px; color: var(--heading); font-size: 1rem; font-weight: 700; line-height: 1.45; }
.entry-heading span { flex: 0 0 auto; color: var(--muted); font-size: .9rem; }
.entry p { margin: 3px 0 0; color: var(--muted); font-size: .95rem; }
.publication-list { margin: 0; padding-left: 1.35rem; }
.publication-list li { margin-bottom: 23px; padding-left: 5px; }
.publication-list li:last-child { margin-bottom: 0; }
.publication-title { color: var(--heading); font-weight: 700; line-height: 1.4; }
.publication-list p { margin: 5px 0 0; color: var(--muted); font-size: .92rem; line-height: 1.5; }
.publication-list strong { color: var(--heading); }
.publication-list .venue { margin-top: 1px; color: var(--text); font-style: italic; }
footer { border-top: 1px solid var(--border); background: #f7f7f7; }
footer p { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 22px 0; color: var(--muted); font-size: .82rem; }

@media (max-width: 860px) {
  .masthead-inner { width: min(100% - 30px, 720px); }
  nav { gap: 18px; overflow-x: auto; }
  nav a:nth-last-child(-n + 2) { display: none; }
  .page-layout { display: block; width: min(100% - 36px, 720px); padding-top: 34px; }
  .sidebar { position: static; display: grid; grid-template-columns: 125px minmax(0, 1fr); gap: 0 24px; margin-bottom: 42px; }
  .author-avatar { grid-row: 1 / span 2; width: 125px; height: 125px; }
  .author-content h1 { margin-top: 3px; }
  .author-bio { margin-bottom: 12px; }
  .author-links { grid-column: 2; }
}

@media (max-width: 560px) {
  .masthead-inner { min-height: 58px; }
  nav { gap: 14px; }
  nav a { font-size: .86rem; }
  nav a:nth-last-child(-n + 3) { display: none; }
  .page-layout { width: min(100% - 28px, 720px); padding-top: 28px; }
  .sidebar { display: block; }
  .author-avatar { width: 116px; height: 116px; }
  .author-links { margin-top: 16px; }
  .entry-heading { display: block; }
  .entry-heading span { display: block; margin-bottom: 6px; }
}