:root {
  --blue: #1772d0;
  --orange: #f09228;
  --text: #111827;
  --muted: #4b5563;
  --light: #6b7280;
  --border: #d9dce1;
  --soft: #f6f8fa;
  --mark: #fff4ce;
  --width: 940px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: #fff;
  font-family: "Lato", "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); text-decoration: none; }
a:hover, a:focus { color: var(--orange); text-decoration: none; }
strong { font-weight: 700; }
p { margin: 0 0 0.85rem; }
ul, ol { margin: 0.25rem 0 1rem; padding-left: 1.25rem; }
li { margin: 0.28rem 0; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; font-weight: 700; }
h2.section-title {
  font-size: 24px;
  margin: 2.1rem 0 0.9rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border);
}
h3 { font-size: 18px; }
.wrap { width: min(var(--width), calc(100% - 36px)); margin: 0 auto; }

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid #e5e7eb;
  backdrop-filter: blur(8px);
}
.site-nav .wrap { min-height: 48px; display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 4px 22px; padding: 7px 0; }
.site-nav a { color: #374151; font-size: 14px; font-weight: 600; }
.site-nav a:hover { color: var(--orange); }
.site-nav .nav-name { margin-right: auto; font-size: 15px; }
@media (max-width: 720px) { .site-nav .nav-name { width: 100%; text-align: center; margin: 0; } }

.hero { padding: 46px 0 22px; }
.profile { display: grid; grid-template-columns: 172px minmax(0, 1fr); gap: 30px; align-items: start; }
.photo {
  width: 168px;
  height: 168px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--soft);
}
.name { font-size: 34px; line-height: 1.15; margin-bottom: 7px; }
.affiliation { margin: 10px 0 6px; color: var(--muted); }
.contact-line { margin-top: 10px; color: var(--muted); font-size: 15px; }
.contact-line a { margin-right: 14px; white-space: nowrap; }
.bio { margin: 12px 0 0; color: var(--muted); max-width: 760px; }
.bio strong { color: var(--text); }

.news-list li { margin-bottom: 0.35rem; }
.date { color: var(--light); font-weight: 700; margin-right: 7px; }
.note { color: var(--muted); }

.highlight-list { max-width: 820px; }
.highlight-list li { margin-bottom: .55rem; color: var(--muted); }
.highlight-list strong { color: var(--text); }
@media (max-width: 720px) { .profile { grid-template-columns: 1fr; } .photo { width: 150px; height: 150px; } }

.pub { display: grid; grid-template-columns: 58px minmax(0,1fr); gap: 16px; padding: 13px 0; border-bottom: 1px solid #edf0f3; }
.pub:last-child { border-bottom: 0; }
.pub-year { color: var(--light); font-weight: 700; padding-top: 2px; }
.pub-title { font-weight: 700; font-size: 17px; }
.pub-authors { color: #374151; font-size: 15px; margin: 2px 0; }
.pub-authors .me { font-weight: 700; text-decoration: underline; text-decoration-thickness: 1.5px; }
.pub-venue { color: #374151; font-size: 15.5px; }
.pub-meta { margin-top: 5px; font-size: 14px; display: flex; flex-wrap: wrap; gap: 4px 13px; align-items: center; }
.pub-abstract { color: var(--muted); font-size: 15px; margin: 6px 0 0; max-width: 760px; }
.badge { display: inline-block; padding: 1px 7px; margin-right: 5px; border-radius: 4px; background: #e8f1fc; color: #155aab; font-size: 13px; font-weight: 700; }
.cites { color: #9a6700; font-size: 13px; font-weight: 700; }
details { margin-top: 5px; }
summary { cursor: pointer; color: var(--light); font-size: 14px; }
pre {
  overflow: auto;
  margin: 8px 0 0;
  padding: 12px 14px;
  background: #f6f8fa;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12.5px;
  line-height: 1.45;
  white-space: pre-wrap;
}

.entry { display: grid; grid-template-columns: 150px minmax(0,1fr); gap: 20px; padding: 13px 0; border-bottom: 1px solid #edf0f3; }
.entry:last-child { border-bottom: 0; }
.entry-date { color: var(--light); font-size: 15px; font-weight: 700; }
.entry h3 { margin-bottom: 2px; }
.entry-title { display: flex; align-items: center; gap: 10px; }
.company-logo { width: 28px; height: 28px; object-fit: contain; flex: 0 0 auto; border-radius: 5px; }
.entry .sub { color: var(--blue); font-weight: 700; font-size: 15px; margin-bottom: 6px; }
.entry p, .entry li { color: var(--muted); font-size: 15.5px; }
.metrics { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.metric { border: 1px solid var(--border); background: var(--soft); border-radius: 5px; padding: 4px 9px; font-size: 14px; }
.metric b { color: var(--text); }
@media (max-width: 720px) { .entry, .pub { grid-template-columns: 1fr; gap: 3px; } }

.simple-list li { margin-bottom: .55rem; }
.blog-callout {
  margin: 22px 0 8px;
  padding: 16px 18px;
  border-left: 4px solid var(--blue);
  background: #f7fbff;
}
.footer { border-top: 1px solid var(--border); margin-top: 46px; padding: 24px 0 34px; color: var(--light); font-size: 14px; }
.footer .wrap { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }

.page-head { padding: 42px 0 10px; }
.page-head h1 { font-size: 32px; margin-bottom: 8px; }
.page-head p { color: var(--muted); }
.cv-paper { max-width: 850px; padding: 20px 0 50px; }
.cv-paper h1 { font-size: 30px; }
.cv-paper h2 { font-size: 20px; margin: 22px 0 8px; border-bottom: 1px solid var(--border); padding-bottom: 4px; }
.cv-paper h3 { font-size: 16px; }
.cv-paper p, .cv-paper li { color: #1f2937; font-size: 15px; }
.cv-actions { position: sticky; top: 58px; z-index: 10; text-align: right; padding: 10px 0; background: rgba(255,255,255,.9); }
.button { display: inline-block; border: 1px solid var(--border); background: #fff; color: var(--text); padding: 6px 12px; border-radius: 5px; font-size: 14px; font-weight: 700; }
.button:hover { color: #fff; background: var(--blue); border-color: var(--blue); }
@media print {
  .site-nav, .footer, .cv-actions { display: none !important; }
  body { font-size: 12px; }
  .wrap { width: 100%; max-width: none; }
  a { color: #000; }
}