Task: Merge {partial_count} partial document **writing style** extracts into one coherent guide with up to three tiers for {source_lang_name} → {target_lang} ({prompt_target_phrase}).

Deduplicate overlapping rules. Prefer the most specific wording. Do **not** merge terminology or glossaries (handled separately).

{writing_style_target_note}

When merging partials, EXPAND the writing-style sections — do not shorten them. The merged FULL section should be at least {style_writing_min_bullets_full} bullets and ~3,500+ characters.

OUTPUT FORMAT — begin your reply with this exact line:
{style_full_marker}

{style_full_marker}
<merged full writing style guide>

{style_compact_marker}
<merged compact writing style — optional>

{style_compact_l2_marker}
<merged shortest writing style — optional>

PARTIAL EXTRACTS:
{partial_extracts}
