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:root{--color-brand-primary:#1A365D;--color-brand-primary-alt:#1A2B4C;--color-brand-secondary:#4A5568;--color-accent:#3182CE;--color-accent-dark:#1A365D;--color-success:#2F855A;--color-warning:#DD6B20;--color-danger:#C53030;--color-danger-tile-bd:#D32F2F;--color-text-strong:#2D3748;--color-text-body:#575B5F;--color-text-muted:#718096;--color-border-strong:#A0AEC0;--color-border:#E2E8F0;--color-fill-subtle:#F5F7FA;--color-bg-body:#F7FAFC;--color-bg-surface:#FFFFFF;--color-bg-critical:#FFF3F3;--color-bg-info:#EBF4FB;--font-body:'Noto Sans TC','Microsoft JhengHei','PingFang TC','Heiti TC',sans-serif;--font-heading:'Noto Serif TC','PMingLiU','Songti TC',serif;--font-mono:'Roboto Mono',Consolas,'Courier New',monospace;--text-h1:2rem;--text-h2:1.5rem;--text-h3:1.25rem;--text-h4:1.125rem;--text-body-lg:1.125rem;--text-body:1rem;--text-caption:0.875rem;--fw-regular:400;--fw-medium:500;--fw-semibold:600;--fw-bold:700;--lh-heading:1.3;--lh-body:1.7;--paragraph-gap:1.5em;--space-1:0.25rem;--space-2:0.5rem;--space-3:1rem;--space-4:1.5rem;--space-6:2rem;--space-8:2.5rem;--space-12:4rem;--radius-sm:4px;--radius-md:8px;--shadow-card:0 4px 6px -1px rgba(0,0,0,.05),0 2px 4px -1px rgba(0,0,0,.03);--shadow-credential:0 1px 3px rgba(0,0,0,.10);--shadow-hover:0 6px 10px -2px rgba(0,0,0,.12);--max-content-width:1200px;--reading-measure:65ch;--tap-target-min:44px;--transition-standard:all .2s ease-in-out}