:root{--color-primary:#e60012;--color-primary-dark:#c5000f;--color-primary-light:#ff4d4d;--color-text:#333;--color-text-secondary:#666;--color-text-light:#999;--color-heading:#1a1a1a;--color-bg:#fff;--color-bg-gray:#f8f9fa;--color-bg-dark:#1a1a1a;--color-border:#e5e5e5;--color-border-light:#f0f0f0;--font-family:"Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px;--spacing-2xl:48px;--spacing-3xl:64px;--spacing-4xl:80px;--spacing-5xl:120px;--container-max-width:1200px;--container-padding:24px;--transition-fast:.2s ease;--transition-normal:.3s ease;--transition-slow:.4s ease;--shadow-sm:0 2px 8px #0000000f;--shadow-md:0 4px 20px #00000014;--shadow-lg:0 10px 40px #0000001a;--shadow-primary:0 10px 40px 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