:root {
  --bg: #0b1020;
  --bg-2: #131a33;
  --ink: #e8ecf7;
  --ink-muted: #aab4cf;
  --gold: #d4af37;
  --card: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Georgia", "Source Han Serif SC", "Noto Serif CJK SC", "SimSun", serif;
  color: var(--ink);
  background: radial-gradient(ellipse at 50% -10%, #1b2444 0%, var(--bg-2) 45%, var(--bg) 100%);
  min-height: 100vh;
  line-height: 1.6;
}

.stars {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1.5px 1.5px at 20% 30%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 70% 15%, #dfe6ff 50%, transparent 50%),
    radial-gradient(2px 2px at 85% 55%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 40% 70%, #dfe6ff 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 10% 85%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 60% 45%, #cfd8ff 50%, transparent 50%),
    radial-gradient(2px 2px at 30% 12%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 92% 80%, #dfe6ff 50%, transparent 50%);
  animation: twinkle 6s ease-in-out infinite alternate;
}

@keyframes twinkle {
  from { opacity: 0.55; }
  to   { opacity: 1; }
}

.site-header {
  text-align: center;
  padding: 4rem 1.5rem 2rem;
}

.lang-switch {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.lang-switch button {
  font: inherit;
  font-family: system-ui, sans-serif;
  color: var(--ink-muted);
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 0.35rem 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-switch button:hover,
.lang-switch button.active {
  color: var(--bg);
  background: var(--gold);
  border-color: var(--gold);
}

.site-header h1 {
  font-size: clamp(2.2rem, 6vw, 4rem);
  margin: 0;
  letter-spacing: 1px;
  background: linear-gradient(90deg, #f4e7c3, var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  color: var(--ink-muted);
  font-style: italic;
  margin-top: 0.75rem;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.theme {
  border: 1px solid var(--card-border);
  border-left: 4px solid var(--accent, var(--gold));
  border-radius: 16px;
  background: var(--card);
  padding: 2rem 1.5rem;
  backdrop-filter: blur(4px);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.theme.visible {
  opacity: 1;
  transform: translateY(0);
}

.theme-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.25rem;
}

.theme-icon {
  font-size: 2.2rem;
  line-height: 1;
  filter: drop-shadow(0 0 8px color-mix(in srgb, var(--accent) 60%, transparent));
}

.theme-head h2 {
  margin: 0;
  font-size: 1.8rem;
  color: var(--accent);
}

.theme-tagline {
  color: var(--ink-muted);
  font-style: italic;
  margin: 0 0 1.5rem;
}

.sub-label {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin: 1.5rem 0 0.75rem;
}

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.fact {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.03);
}

.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.news-list li {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 0.9rem 1.25rem;
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  gap: 0.9rem;
  align-items: baseline;
}

.news-date {
  color: var(--accent);
  font-family: system-ui, sans-serif;
  font-size: 0.85rem;
  white-space: nowrap;
  letter-spacing: 1px;
}

.site-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  color: var(--ink-muted);
  border-top: 1px solid var(--card-border);
}

@media (prefers-reduced-motion: reduce) {
  .stars { animation: none; }
  .theme { transition: none; opacity: 1; transform: none; }
}