:root {
            --primary-color: #0066ff;
            --secondary-color: #00ccff;
            --accent-color: #ff3366;
            --dark-color: #1a1a1a;
            --light-gray: #f8f9fa;
        }
        
        body {
            font-family: 'Noto Sans JP', sans-serif;
            line-height: 1.6;
        }
        
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: 140px;
            padding-bottom: 120px;
        }
        
        /* Navigation margin for better spacing */
        .navbar {
            margin-bottom: 60px;
        }
        
        .btn-primary-custom {
            background: var(--primary-color);
            border-color: var(--primary-color);
            border-radius: 50px;
            padding: 12px 30px;
            font-weight: 600;
        }
        
        .btn-outline-custom {
            color: white;
            border-color: white;
            border-radius: 50px;
            padding: 12px 30px;
            font-weight: 600;
        }
        
        .btn-outline-custom:hover {
            background: white;
            color: var(--primary-color);
        }
        
        .feature-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        
        .problem-icon {
            font-size: 4rem;
            margin-bottom: 1rem;
        }
        
        .section-padding {
            padding: 80px 0;
        }
        
        .lang-switcher a {
            color: white;
            text-decoration: none;
            opacity: 0.7;
            margin: 0 5px;
        }
        
        .lang-switcher a.active,
        .lang-switcher a:hover {
            opacity: 1;
        }
        
        .vision-section {
            background: var(--light-gray);
        }
        
        .enterprise-card {
            transition: transform 0.3s;
        }
        
        .enterprise-card:hover {
            transform: translateY(-5px);
        }