:root{--bg:#fff;--bg-secondary:#f8f9fa;--surface:#fff;--surface-soft:#f7f7f8;--surface-hover:#f1f3f4;--text:#202124;--text-secondary:#5f6368;--text-muted:#80868b;--border:#e5e7eb;--border-strong:#d5d8dc;--primary:#1a73e8;--primary-hover:#1769d1;--primary-soft:#e8f0fe;--success:#188038;--success-soft:#e6f4ea;--danger:#d93025;--danger-soft:#fce8e6;--warning:#b06000;--warning-soft:#fef7e0;--shadow-sm:0 1px 3px #3c40431f;--shadow-md:0 4px 14px #3c40431f;--radius-sm:10px;--radius-md:16px;--radius-lg:24px;--header-height:68px}html.dark{--bg:#131314;--bg-secondary:#1a1a1b;--surface:#1e1f20;--surface-soft:#202124;--surface-hover:#292a2d;--text:#e8eaed;--text-secondary:#bdc1c6;--text-muted:#9aa0a6;--border:#3c4043;--border-strong:#5f6368;--primary:#8ab4f8;--primary-hover:#aecbfa;--primary-soft:#1e3a5f;--success:#81c995;--success-soft:#173b25;--danger:#f28b82;--danger-soft:#4a211f;--warning:#fdd663;--warning-soft:#443b18;--shadow-sm:0 1px 3px #00000059;--shadow-md:0 8px 24px 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