:root {
  --bg: #f7f8fb;
  --paper: #ffffff;
  --text: #1f2937;
  --muted: #64748b;
  --soft: #f1f5f9;
  --line: #e5e7eb;
  --accent: #2563eb;
  --accent-dark: #1e40af;
  --teal: #0f766e;
  --shadow: 0 10px 32px rgba(15, 23, 42, 0.08);
  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.68;
  font-size: 16px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 18% 2%, rgba(37, 99, 235, 0.08), transparent 32rem),
    radial-gradient(circle at 92% 18%, rgba(20, 184, 166, 0.08), transparent 30rem);
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); text-decoration: underline; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.navbar {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-weight: 750;
  white-space: nowrap;
}

.brand:hover { text-decoration: none; }

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, #2563eb, #14b8a6);
}

.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav-links a {
  color: #475569;
  font-weight: 650;
  font-size: 0.94rem;
  padding: 7px 10px;
  border-radius: 999px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-dark);
  text-decoration: none;
  background: #eff6ff;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: var(--text);
}

.status-bar {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 22px 12px;
  display: flex;
  justify-content: flex-end;
  color: var(--muted);
  font-size: 0.88rem;
}

.status-inner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.86);
}

.status-inner strong { color: var(--text); font-weight: 750; }
.status-dot { color: #cbd5e1; }
.counter-slot { display: inline-flex; align-items: center; min-height: 20px; }
.visitor-badge { display: block; height: 20px; }
.counter-note { color: var(--muted); }

.layout {
  max-width: var(--max);
  margin: 0 auto;
  padding: 38px 22px 72px;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 42px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 105px;
}

.profile-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--paper);
  box-shadow: var(--shadow);
  padding: 24px;
}

.avatar {
  width: 108px;
  height: 108px;
  border-radius: 50%;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2.1rem;
  font-weight: 850;
  background: linear-gradient(135deg, #2563eb, #14b8a6 62%, #8b5cf6);
  box-shadow: 0 16px 34px rgba(37, 99, 235, 0.20);
}

.profile-card h1 {
  margin: 0 0 6px;
  font-size: 1.62rem;
  line-height: 1.18;
  letter-spacing: -0.03em;
}

.profile-card .name-cn { color: var(--muted); font-size: 0.98rem; margin-left: 4px; }
.profile-card p { margin: 0 0 14px; color: var(--muted); }
.profile-meta { display: grid; gap: 8px; margin-top: 16px; font-size: 0.95rem; }
.profile-meta span { color: var(--muted); }

.sidebar-links {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.sidebar-links a {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  background: #fff;
  color: var(--text);
  font-weight: 650;
}

.sidebar-links a:hover {
  text-decoration: none;
  color: var(--accent-dark);
  border-color: #bfdbfe;
  background: #eff6ff;
}

.content {
  min-width: 0;
}

.page-title {
  padding-bottom: 22px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.page-title .kicker {
  margin: 0 0 8px;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 850;
}

.page-title h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.15rem);
  line-height: 1.1;
  letter-spacing: -0.055em;
}

.page-title p {
  max-width: 780px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.section {
  margin: 0 0 34px;
}

.section h3 {
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  font-size: 1.32rem;
  letter-spacing: -0.025em;
}

.card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,0.88);
  box-shadow: 0 8px 24px rgba(15,23,42,0.05);
  padding: 22px;
}

.card + .card { margin-top: 16px; }

.lead {
  margin-top: 0;
  color: #334155;
  font-size: 1.05rem;
}

.clean-list,
.pub-list,
.people-list,
.timeline-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.clean-list li,
.people-list li {
  padding: 7px 0 7px 18px;
  position: relative;
}

.clean-list li::before,
.people-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  position: absolute;
  left: 0;
  top: 1.03em;
}

.timeline-list li {
  display: grid;
  grid-template-columns: 138px minmax(0, 1fr);
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid #eef2f7;
}

.timeline-list li:last-child { border-bottom: 0; }
.timeline-list time { color: var(--accent-dark); font-weight: 750; }
.timeline-list h4 { margin: 0 0 4px; font-size: 1rem; }
.timeline-list p { margin: 0; color: var(--muted); }

.pub-list { counter-reset: item; }
.pub-list li {
  counter-increment: item;
  padding: 16px 0 16px 42px;
  border-bottom: 1px solid #eef2f7;
  position: relative;
}
.pub-list li:last-child { border-bottom: 0; }
.pub-list li::before {
  content: counter(item);
  position: absolute;
  left: 0;
  top: 17px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #eff6ff;
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pub-title { font-weight: 740; color: var(--text); }
.pub-meta { color: var(--muted); }
.pub-note { color: var(--teal); font-weight: 700; }

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 18px;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tag { padding: 4px 9px; border-radius: 999px; background: #eef6ff; color: #1d4ed8; font-size: 0.82rem; font-weight: 700; }

.people-list a { font-weight: 700; }
.people-affil { color: var(--muted); }

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(255,255,255,0.88);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 860px) {
  .navbar { align-items: flex-start; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    left: 22px;
    right: 22px;
    top: 64px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: grid; }
  .nav-links a { padding: 10px; }
  .status-bar { justify-content: flex-start; }
  .status-inner { flex-wrap: wrap; border-radius: 14px; }
  .layout { grid-template-columns: 1fr; gap: 24px; padding-top: 26px; }
  .sidebar { position: static; }
  .profile-card { display: grid; grid-template-columns: 86px minmax(0,1fr); gap: 18px; align-items: center; }
  .avatar { width: 86px; height: 86px; margin: 0; font-size: 1.65rem; }
  .sidebar-links { grid-column: 1 / -1; grid-template-columns: repeat(2, minmax(0,1fr)); }
  .timeline-list li { grid-template-columns: 1fr; gap: 4px; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; }
}

@media (max-width: 520px) {
  .profile-card { grid-template-columns: 1fr; }
  .sidebar-links { grid-template-columns: 1fr; }
  .page-title h2 { font-size: 2rem; }
}