:root {
  --primary: #0d3b66;
  --primary-dark: #082440;
  --accent: #3d8bc9;
  --accent-light: #e8f1f8;
  --bg: #f8fafc;
  --bg-alt: #ffffff;
  --fg: #1e293b;
  --fg-muted: #64748b;
  --border: #e2e8f0;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Serif SC', Georgia, serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 2;
  font-size: 20px;
}
header {
  background: var(--primary-dark);
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
}
.header-top {
  background: var(--primary);
  padding: 0.5rem 3rem;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.header-top a { color: rgba(255,255,255,0.7); text-decoration: none; }
.lang-btn {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  padding: 0.4rem 0.8rem;
  font-size: 1.2em !important;
  font-weight: 600;
  cursor: pointer;
  border-radius: 4px;
  font-family: inherit;
}
.lang-btn:hover { background: rgba(255,255,255,0.2); }
.header-main {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 3rem;
}
.site-title { font-size: 22px; font-weight: 700; color: #fff; }
.site-title-en { font-size: 12px; color: rgba(255,255,255,0.5); letter-spacing: 0.1em; }
nav ul { display: flex; list-style: none; gap: 0.2rem; }
nav a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  padding: 0.6rem 1rem;
  font-size: 1.2em !important;
  font-weight: 600;
  border-radius: 4px;
  transition: all 0.2s;
}
nav a:hover { background: rgba(255,255,255,0.1); color: #fff; }
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 7rem 3rem 3rem;
}
h1 {
  font-size: 38px;
  color: var(--primary-dark);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 3px solid var(--accent);
}
h2 {
  font-size: 32px;
  color: var(--primary);
  margin: 3rem 0 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent-light);
}
h3 { font-size: 26px; color: var(--primary-dark); margin: 2rem 0 1rem; }
h4 { font-size: 19px; color: var(--primary); margin: 1.5rem 0 0.8rem; }
p { color: var(--fg-muted); margin-bottom: 1.2rem; font-size: 20px; }
ul, ol { margin-left: 1.5rem; color: var(--fg-muted); font-size: 20px; }
li { margin: 0.5rem 0; }
a { color: var(--accent); }
a:hover { text-decoration: underline; }
strong { color: var(--primary-dark); }
hr { border: none; border-top: 1px solid var(--border); margin: 2.5rem 0; }

/* Member cards */
.member-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin: 1.5rem 0 2rem;
}
.member-card {
  text-align: center;
  padding: 2.5rem 2rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-alt);
  transition: box-shadow 0.2s, transform 0.2s;
}
.member-card:hover {
  box-shadow: 0 6px 24px rgba(13,59,102,0.15);
  transform: translateY(-2px);
}
.member-card img {
  width: 220px;
  height: 270px;
  object-fit: cover;
  border-radius: 8px;
  margin: 0 auto 1rem;
  display: block;
}
.member-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.5rem;
}
.member-email {
  font-size: 18px;
  color: var(--fg-muted);
  font-family: monospace;
}

/* Leader card */
.leader-card {
  width: 100%;
  display: flex;
  gap: 2.5rem;
  padding: 2.5rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-alt);
  align-items: center;
}
.leader-card img {
  width: 240px;
  height: 300px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}
.leader-info { flex: 1; }
.leader-name {
  font-size: 30px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.5rem;
}
.leader-title { font-size: 22px; color: var(--accent); margin-bottom: 1rem; }
.leader-email { font-size: 18px; color: var(--fg-muted); font-family: monospace; margin-bottom: 0.5rem; }
.leader-address { font-size: 17px; color: var(--fg-muted); }

/* Footer */
footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.5);
  text-align: center;
  padding: 2.5rem;
  font-size: 16px;
}
footer a { color: var(--accent); }

/* Responsive */
@media (max-width: 900px) {
  .header-main { flex-direction: column; gap: 1rem; padding: 1rem; }
  nav ul { flex-wrap: wrap; justify-content: center; }
  main { padding: 8rem 1rem 2rem; }
  .member-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .member-grid { grid-template-columns: 1fr; }
  .leader-card { flex-direction: column; text-align: center; }
}