@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700;900&family=Playfair+Display:ital,wght@0,700;1,400&display=swap');

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Noto Sans TC', sans-serif;
  background: #111111;
  color: #C0C0C0;
  line-height: 1.8;
}

/* Navigation */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(17,17,17,0.95);
  border-bottom: 1px solid rgba(212,175,55,0.2);
  backdrop-filter: blur(10px);
  padding: 12px 20px;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.nav-brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: #D4AF37;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.nav-links a {
  color: rgba(192,192,192,0.8);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 4px;
  transition: all 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: #D4AF37;
  background: rgba(212,175,55,0.1);
}

/* Hero */
.hero {
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  background: radial-gradient(ellipse at center, rgba(212,175,55,0.08) 0%, #111111 70%);
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 900;
  color: #D4AF37;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.hero .subtitle {
  font-size: 1.1rem;
  color: rgba(192,192,192,0.8);
  max-width: 600px;
  margin: 0 auto 32px;
}

.cta-btn {
  display: inline-block;
  padding: 14px 32px;
  background: linear-gradient(135deg, #D4AF37, #B8860B);
  color: #111111;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 6px;
  transition: transform 0.2s;
  margin: 6px;
}

.cta-btn:hover { transform: scale(1.05); }

.cta-btn.secondary {
  background: linear-gradient(135deg, #7B2FBE, #5B1F9E);
  color: #fff;
}

/* Content Sections */
.content-section {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 20px;
}

.content-section h2 {
  font-size: 1.8rem;
  color: #D4AF37;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(212,175,55,0.2);
}

.content-section h3 {
  font-size: 1.3rem;
  color: #D4AF37;
  margin: 28px 0 12px;
}

.content-section p {
  margin-bottom: 16px;
  color: rgba(192,192,192,0.85);
  font-size: 1rem;
}

.content-section ul, .content-section ol {
  margin: 12px 0 20px 24px;
  color: rgba(192,192,192,0.85);
}

.content-section li {
  margin-bottom: 8px;
}

.content-section a {
  color: #D4AF37;
  text-decoration: underline;
}

.content-section blockquote {
  border-left: 3px solid #D4AF37;
  padding: 12px 20px;
  margin: 20px 0;
  background: rgba(212,175,55,0.05);
  border-radius: 0 8px 8px 0;
  font-style: italic;
}

/* Tables */
.formula-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.95rem;
}

.formula-table th {
  background: rgba(212,175,55,0.15);
  color: #D4AF37;
  padding: 12px 16px;
  text-align: left;
  font-weight: 700;
}

.formula-table td {
  padding: 10px 16px;
  border-bottom: 1px solid rgba(212,175,55,0.1);
  color: rgba(192,192,192,0.8);
}

.formula-table tr:nth-child(even) td {
  background: rgba(28,21,39,0.3);
}

/* Divider */
.divider {
  max-width: 800px;
  margin: 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,175,55,0.3), transparent);
}

/* Ad Slot */
.ad-slot {
  max-width: 900px;
  margin: 20px auto;
  padding: 10px 20px;
  text-align: center;
}

/* Article Cards */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin: 24px 0;
}

.article-card {
  background: rgba(28,21,39,0.5);
  border: 1px solid rgba(212,175,55,0.15);
  border-radius: 10px;
  padding: 24px;
  transition: transform 0.2s, border-color 0.2s;
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: rgba(212,175,55,0.4);
}

.article-card h3 {
  color: #D4AF37;
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.article-card p {
  font-size: 0.9rem;
  color: rgba(192,192,192,0.7);
  margin-bottom: 12px;
}

.article-card .read-more {
  color: #D4AF37;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Feature Cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin: 24px 0;
}

.feature-card {
  background: rgba(28,21,39,0.5);
  border: 1px solid rgba(212,175,55,0.15);
  border-radius: 10px;
  padding: 24px;
  text-align: center;
}

.feature-card .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.feature-card h3 {
  color: #D4AF37;
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.88rem;
  color: rgba(192,192,192,0.7);
}

/* Footer */
footer {
  text-align: center;
  padding: 40px 20px;
  border-top: 1px solid rgba(212,175,55,0.15);
  margin-top: 40px;
}

footer p {
  color: rgba(192,192,192,0.5);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

footer a {
  color: #D4AF37;
  text-decoration: none;
  margin: 0 8px;
}

footer .footer-links {
  margin-top: 12px;
}

/* Scene Tags */
.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0;
}

.scene-tag {
  background: rgba(212,175,55,0.08);
  border: 1px solid rgba(212,175,55,0.2);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  color: rgba(192,192,192,0.8);
}

/* WuXing Grid */
.wuxing-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin: 20px 0;
}

.wuxing-item {
  text-align: center;
  padding: 16px 24px;
  background: rgba(28,21,39,0.4);
  border-radius: 10px;
  min-width: 100px;
}

.wuxing-item .symbol { font-size: 1.8rem; }
.wuxing-item .name { font-size: 1.1rem; font-weight: 700; margin: 4px 0; }
.wuxing-item .nums { font-size: 0.85rem; color: rgba(192,192,192,0.6); }

/* Responsive */
@media (max-width: 600px) {
  .hero h1 { font-size: 2rem; }
  .nav-links a { font-size: 0.78rem; padding: 4px 8px; }
  .content-section h2 { font-size: 1.4rem; }
  .cta-btn { padding: 12px 24px; font-size: 0.9rem; }
}