.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.module-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 3px solid var(--red);
  border-radius: 12px;
  padding: 1.75rem;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: box-shadow 0.18s, transform 0.18s;
}
.module-card:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,0.09);
  transform: translateY(-2px);
}

.mc-hanzi { font-size: 2.2rem; font-weight: 300; color: var(--navy); line-height: 1; }
.mc-py    { font-size: 0.82rem; color: var(--red); margin-top: 0.3rem; }
.mc-en    { font-size: 0.9rem; color: var(--muted); margin-top: 0.15rem; }
.cover-title { font-size: clamp(1.8rem, 6vw, 3rem); }

.mc-desc  {
  font-size: 0.82rem; color: var(--muted); margin-top: 1rem;
  line-height: 1.5; border-top: 1px solid var(--border); padding-top: 0.75rem;
}