:root{font-family:Arial,Helvetica,PingFang SC,Microsoft YaHei,sans-serif;color:#172033;background:#f6f8fb;--brand-accent: #059669;--brand-accent-hover: #047857;--brand-soft: #ecfdf5;--edit-accent: #2477ff;--edit-soft: #eef5ff;--line: #dce4ed;--line-soft: #e9eef4;--muted: #64748b;--export-accent: var(--brand-accent);--export-accent-hover: var(--brand-accent-hover);font-synthesis:none}*{box-sizing:border-box}html,body,#root{margin:0;width:100%;min-width:820px;height:100%;min-height:640px;overflow:hidden}body{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font:inherit}button:focus-visible{outline:3px solid rgba(5,150,105,.22);outline-offset:2px}.app-shell{position:relative;width:100%;height:100dvh;min-height:640px;overflow:hidden;background:#f6f8fb}.topbar{position:relative;z-index:10;display:grid;grid-template-columns:270px 1fr 270px;align-items:center;height:66px;padding:0 38px;background:#fff;border-bottom:1px solid 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