.hero-bg { background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%); }
        .breathing-fx { animation: float 4s ease-in-out infinite; }
        @keyframes float {
            0%, 100% { filter: drop-shadow(0 10px 15px rgba(0,0,0,0.05)); transform: translateY(0); }
            50% { filter: drop-shadow(0 25px 30px rgba(0,0,0,0.15)); transform: translateY(-12px); }
        }
        .spec-row:nth-child(even) { background-color: #f8fafc; }