body {
            font-family: 'Noto Sans JP', sans-serif;
            scroll-behavior: smooth;
        }
        .hero-gradient {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
        }
        .closing-gradient {
            background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
        }
        .gold-accent {
            color: #d4af37;
        }
        .btn-primary {
            background: linear-gradient(90deg, #d4af37 0%, #f1c40f 100%);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .btn-primary:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 20px 25px -5px rgba(212, 175, 55, 0.4);
        }
        .image-container {
            position: relative;
            animation: float 6s ease-in-out infinite;
        }
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-20px); }
        }
        .shine {
            background: linear-gradient(120deg, rgba(255,255,255,0) 30%, rgba(255,255,255,0.8) 50%, rgba(255,255,255,0) 70%);
            background-size: 200% auto;
            color: #d4af37;
            background-clip: text;
            -webkit-background-clip: text;
            animation: shine 3s linear infinite;
        }
        @keyframes shine {
            to { background-position: 200% center; }
        }