"""Word 解析共享小工具（WordTemplateParser / RuleDocParser 复用）。"""

from __future__ import annotations


def heading_level(style_name: str) -> int:
    """从 Heading N 样式名解析大纲级别；非数字/无后缀兜底 1。"""
    try:
        return int(style_name.split()[-1])
    except (ValueError, IndexError):
        return 1