@media (max-width: 768px) {
    .dual-column {
        grid-template-columns: 1fr;
    }
    
    .header h1 {
        font-size: 1.8em;
    }
    
    .section {
        padding: 20px;
    }
    
    .character-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .character-list {
        grid-template-columns: 1fr;
    }
    
    .location-list {
        grid-template-columns: 1fr;
    }
    
    .clothing-section {
        grid-template-columns: 1fr;
    }
    
    .nav ul {
        gap: 10px;
    }
    
    .nav a {
        padding: 6px 12px;
        font-size: 0.85em;
    }
    
    .story-nav {
        flex-direction: column;
        text-align: center;
    }
    
    .recommend-list {
        flex-direction: column;
    }
    
    .phase-btn {
        padding: 8px 12px;
        font-size: 0.8em;
    }
    
    .original-text {
        font-size: 1em;
        padding: 15px;
    }
    
    .translation-text {
        font-size: 1em;
    }
    
    .timeline {
        padding-left: 20px;
    }
    
    .timeline-item::before {
        left: -14px;
    }
    
    .timeline::before {
        left: 3px;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 25px 15px;
    }
    
    .header h1 {
        font-size: 1.5em;
    }
    
    .header .subtitle {
        font-size: 0.95em;
    }
    
    .section {
        padding: 15px;
    }
    
    .section-title {
        font-size: 1.3em;
    }
    
    .character-card {
        padding: 15px;
    }
    
    .character-image {
        width: 60px;
        height: 75px;
    }
    
    .card {
        padding: 15px;
    }
    
    .tags-container .tag-item {
        padding: 4px 10px;
        font-size: 0.8em;
    }
    
    .story-nav a {
        padding: 8px 15px;
        font-size: 0.9em;
    }
}