.note-article-main {
  max-width: 680px;
  margin: 0 auto;
  padding: 8rem 2.5rem 8rem;
}

.note-article-header {
  margin-bottom: 3.5rem;
}

.note-article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.note-article-date {
  font-family: 'Fira Code', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  opacity: 0.4;
  font-variant-numeric: tabular-nums;
}

.note-article-tag {
  font-family: var(--font-ja);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  border: 1px solid var(--border);
  padding: 0.15rem 0.5rem;
  opacity: 0.5;
}

.note-article-title {
  font-family: var(--font-ja);
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.note-article-body {
  font-family: var(--font-ja);
  font-size: 0.95rem;
  line-height: 2;
  color: var(--fg);
}

.note-article-body p {
  margin-bottom: 1.8em;
}

.note-article-body p:last-child {
  margin-bottom: 0;
}

.note-back {
  display: inline-block;
  margin-top: 4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  opacity: 0.45;
  transition: opacity 0.2s;
}

.note-back:hover {
  opacity: 1;
}

@media (max-width: 768px) {
  .note-article-main {
    padding: 7rem 1.5rem 5rem;
  }
  .note-article-title {
    font-size: 1.3rem;
  }
}