body { font-family: 'Inter', sans-serif; scroll-behavior: smooth; }
        
        /* 自定义呼吸动画 */
        @keyframes breathe {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.04); }
        }
        .animate-breathe {
            animation: breathe 6s ease-in-out infinite;
        }