/* CSS Reset & Basic Styles */
        * { box-sizing: border-box; }
        body { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; background-color: #fff; }
        h1, h2, h3 { color: #1a1a1a; text-transform: uppercase; letter-spacing: 1px; }
        .section-padding { padding: 80px 10%; }
        
        /* Placeholders (标记位置，便于后期填充图片) */
        .poster-placeholder { height: 500px; background: #e5e5e5; border: 2px dashed #999; display: flex; align-items: center; justify-content: center; color: #666; font-weight: bold; margin: 20px 0; }
        .part-placeholder { height: 300px; background: #f4f4f4; border: 1px solid #ddd; display: flex; align-items: center; justify-content: center; color: #888; font-size: 0.9rem; }
        
        /* Grid Layouts */
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        .grid-4 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
        
        /* CTA Button */
        .cta-btn { display: inline-block; padding: 20px 50px; background: #1a1a1a; color: #fff; text-decoration: none; font-weight: bold; transition: background 0.3s; }
        .cta-btn:hover { background: #444; }