/* 共通ナビゲーションスタイル */
#common-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

#common-nav .nav-logo {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.5em;
    font-weight: 700;
    color: var(--izu-ocean);
    text-decoration: none;
}

#common-nav .nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
}

#common-nav .nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 0.95em;
}

#common-nav .nav-links a:hover,
#common-nav .nav-links a.active {
    color: var(--izu-sunset);
}

/* スマホ対応 */
@media (max-width: 768px) {
    #common-nav {
        padding: 10px 15px;
    }
    
    #common-nav .nav-links {
        gap: 15px;
        font-size: 0.85em;
    }
}