:root{--ground:#f4f6f8;--surface:#fff;--surface-sunken:#eef2f7;--ink:#1f2933;--ink-muted:#66727d;--ink-faint:#9aa5b0;--line:#e2e6ea;--line-strong:#cbd3da;--accent:#2563eb;--accent-strong:#1d4ed8;--success:#059669;--success-bg:#e6f4ef;--danger:#dc2626;--danger-bg:#fdeced}@media 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