/* 呼吸灯效果 - 用于 Hero 图片 */
        @keyframes breathe {
            0% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.2); transform: scale(1); }
            50% { box-shadow: 0 0 35px rgba(59, 130, 246, 0.5); transform: scale(1.01); }
            100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.2); transform: scale(1); }
        }
        .hero-img-effect {
            animation: breathe 5s infinite ease-in-out;
        }