body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f9f9f9;
    color: #333;
    /* line-height: 1.6; */
}

header {
    background: #0074D9;
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    font-size: 1.2rem;
}

.nav-bar {
    background: #0074D9;
    display: none; /* スマホサイズでは非表示 */
    justify-content: space-around;
    align-items: center;
}

.nav-link {
    background: #0074D9;
    padding: 0.75rem 1rem;
    display: flex;
    white-space: nowrap;
    color: white;
    text-decoration: none;
    max-width: 100%;
    overflow: hidden;
    justify-content: center;
    align-items: center;
    flex: 1;
    text-align: center;
}

.hamburger {
    font-size: 1.5rem;
    cursor: pointer;
}

/* プライバシーポリシー専用のスタイル */
.privacy-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.privacy-content h1 {
    color: #0074D9;
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    border-bottom: 3px solid #0074D9;
    padding-bottom: 1rem;
}

.privacy-content h2 {
    color: #0074D9;
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    border-left: 4px solid #0074D9;
    padding-left: 1rem;
}

.privacy-content p {
    margin-bottom: 1rem;
    text-align: justify;
}

.privacy-content ul {
    margin: 1rem 0;
    padding-left: 2rem;
}

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

.privacy-content .contact-info {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 5px;
    margin: 1rem 0;
    border-left: 4px solid #0074D9;
}

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

footer {
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
    background: #eee;
    color: #555;
}

/* スマホサイズ時はハンバーガー表示 */
.hamburger {
    font-size: 1.5rem;
    cursor: pointer;
    display: block;
}

/* ハンバーガーメニューとして開いたときの表示 */
.nav-bar.open {
    display: flex;
    flex-direction: column;
    background: #0074D9;
    position: absolute;
    top: 60px;
    left: 0;
    width: 200px;
    z-index: 1000;
}

/* PCサイズでは常に表示（ハンバーガーは非表示） */
@media (min-width: 600px) {
    .nav-bar {
        display: flex !important;
        position: static;
        background: none;
    }

    .hamburger {
        display: none;
    }

    .nav-link {
        padding: 0.75rem 1rem;
        display: block;
        white-space: nowrap;
        color: white;
        text-decoration: none;
    }
    
    .privacy-content {
        margin: 2rem auto;
    }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .privacy-content {
        margin: 1rem;
        padding: 1rem;
    }
    
    .privacy-content h1 {
        font-size: 1.5rem;
    }
    
    .privacy-content h2 {
        font-size: 1.1rem;
    }
}