* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-container h1 {
    color: #2c3e50;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #007bff;
}

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.policy-section {
    padding: 3rem 0;
}

.policy-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
    font-size: 2rem;
}

.policy-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.policy-link {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s, box-shadow 0.3s;
}

.policy-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.policy-link h3 {
    color: #007bff;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.policy-link p {
    color: #666;
}

footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

.policy-content {
    background: white;
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    margin: 2rem 0;
    line-height: 1.8;
}

.policy-content h1 {
    color: #2c3e50;
    margin-bottom: 2rem;
    text-align: center;
    font-size: 2.2rem;
}

.policy-content h2 {
    color: #007bff;
    margin: 2rem 0 1rem 0;
    border-bottom: 2px solid #007bff;
    padding-bottom: 0.5rem;
}

.policy-content h3 {
    color: #333;
    margin: 1.5rem 0 0.5rem 0;
}

.policy-content p {
    margin-bottom: 1rem;
}

.policy-content ul {
    margin: 1rem 0 1rem 2rem;
}

.policy-content li {
    margin-bottom: 0.5rem;
}

.effective-date {
    text-align: right;
    color: #666;
    font-style: italic;
    margin-top: 2rem;
    border-top: 1px solid #eee;
    padding-top: 1rem;
}

.back-link {
    display: inline-block;
    margin: 2rem 0;
    padding: 0.8rem 2rem;
    background: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.back-link:hover {
    background: #0056b3;
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .policy-content {
        padding: 2rem 1.5rem;
    }
    
    .policy-content h1 {
        font-size: 1.8rem;
    }
}