"""OOXML 命名空间常量 — 所有 chart_builder 子模块共享"""

NAMESPACES = {
    'c': 'http://schemas.openxmlformats.org/drawingml/2006/chart',
    'a': 'http://schemas.openxmlformats.org/drawingml/2006/main',
    'r': 'http://schemas.openxmlformats.org/officeDocument/2006/relationships',
    'c16r2': 'http://schemas.microsoft.com/office/drawing/2015/06/chart',
}