.gaia-heading--h4 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold, 700);
    color: var(--color-text-body, #1A1A1A);
    margin-bottom: 0.75rem;
    letter-spacing: 0.02em;
}

.gaia-heading--center { text-align: center; }
.gaia-heading--right  { text-align: right; }
.gaia-heading.gaia-heading--no-margin-bottom { margin-bottom: 0 !important; }
.gaia-heading.gaia-heading--no-margin-top { margin-top: 0 !important; }

/* ── Text color — same 8 tokens as gaia/paragraph's own 文字色 ── */
.gaia-heading--color-black      { color: var(--color-text-heading, #000000) !important; }
.gaia-heading--color-grey       { color: var(--color-text-muted, #999999) !important; }
.gaia-heading--color-grey-light { color: var(--color-text-muted-light, #bbbbbb) !important; }
.gaia-heading--color-blue       { color: var(--color-status-info, #49352D) !important; }
.gaia-heading--color-green      { color: var(--color-status-success, #F0701C) !important; }
.gaia-heading--color-red        { color: var(--color-status-danger, #E8501E) !important; }
.gaia-heading--color-white      { color: var(--color-text-inverse, #ffffff) !important; }