:root{--color-primary:#1a73e8;--color-primary-hover:#1765cc;--color-primary-muted:#e8f0fe;--color-bg:#fff;--color-bg-subtle:#f8f9fa;--color-surface:#fff;--color-border:#dadce0;--color-border-strong:#bdc1c6;--color-text:#202124;--color-text-secondary:#5f6368;--color-text-tertiary:#80868b;--color-danger:#d93025;--color-danger-muted:#fce8e6;--color-success:#188038;--color-ring:#1a73e83d;--font-family-sans:system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;--font-size-display:44px;--font-size-title:22px;--font-size-body:14px;--font-size-caption:13px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-pill:28px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--shadow-sm:0 1px 2px #3c404314;--shadow-search:0 2px 5px 1px #403c4329;--shadow-search-focus:0 2px 8px 1px #403c433d;--shadow-card:0 1px 3px 1px #3c404314;--shadow-modal:0 2px 8px #3c40431f;--shadow-focus:0 0 0 1px 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