*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#fff;--bg-secondary:#f8f9fa;--bg-dark:#262151;--text-primary:#1e293b;--text-secondary:#64748b;--text-light:#94a3b8;--accent:#e62a2c;--accent-hover:#cc1f21;--accent-glow:#e62a2c66;--accent-light:#e62a2c14;--border:#e2e8f0;--border-light:#f1f5f9;--shadow-sm:0 2px 8px #0f172a0a;--shadow-md:0 8px 24px #0f172a0f;--shadow-lg:0 20px 40px #0f172a14;--shadow-glow:0 0 20px #e62a2c26;--font-family:"Inter", "Noto Sans Thai", Tahoma, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--line-height:1.6;--ease-spring:cubic-bezier(.175, .885, .32, 1.15);--ease-smooth:cubic-bezier(.4, 0, .2, 1);--ease-out-expo:cubic-bezier(.19, 1, .22, 1);--transition-fast:.2s var(--ease-smooth);--transition-base:.4s var(--ease-out-expo);--transition-slow:.7s 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