<svg xmlns="http://www.w3.org/2000/svg" width="1200" height="675" viewBox="0 0 1200 675"><rect width="1200" height="675" fill="#f8fbff"/><text x="600" y="78" text-anchor="middle" font-size="28" font-weight="700" fill="#273044">灰度发布排障决策树</text><circle cx="600" cy="152" r="46" fill="#273044"/><text x="600" y="160" text-anchor="middle" font-size="21" fill="#fff" font-weight="700">阶段指标异常？</text><g font-size="19" fill="#273044"><rect x="160" y="250" width="210" height="70" rx="18" fill="#eaf3ff" stroke="#367ac4" stroke-width="3"/><text x="265" y="293" text-anchor="middle">样本不足</text><rect x="495" y="250" width="210" height="70" rx="18" fill="#fff2df" stroke="#d8902b" stroke-width="3"/><text x="600" y="293" text-anchor="middle">错误率升高</text><rect x="830" y="250" width="210" height="70" rx="18" fill="#f2edff" stroke="#7658c8" stroke-width="3"/><text x="935" y="293" text-anchor="middle">指标冲突</text><rect x="160" y="430" width="210" height="70" rx="18" fill="#eaf8ef" stroke="#34a05d" stroke-width="3"/><text x="265" y="473" text-anchor="middle">延长观察</text><rect x="495" y="430" width="210" height="70" rx="18" fill="#ffeceb" stroke="#d45a48" stroke-width="3"/><text x="600" y="473" text-anchor="middle">终止并回滚</text><rect x="830" y="430" width="210" height="70" rx="18" fill="#edf4ff" stroke="#486bc5" stroke-width="3"/><text x="935" y="473" text-anchor="middle">暂停人工判断</text></g><path d="M600 184 V215 M600 215 H265 V250 M600 215 V250 M600 215 H935 V250 M265 320 V430 M600 320 V430 M935 320 V430" fill="none" stroke="#657184" stroke-width="4" marker-end="url(#a)"/><text x="600" y="560" text-anchor="middle" font-size="21" fill="#273044">图型任务：用分支判断替代线性链路，服务发布异常处置</text><defs><marker id="a" markerWidth="10" markerHeight="10" refX="8" refY="3" orient="auto"><path d="M0,0 L0,6 L9,3 z" fill="#657184"/></marker></defs></svg>