.product-detail-container { max-width: 1240px; margin: 40px auto 70px; padding: 0 40px; display: flex; gap: 60px; align-items: flex-start; }
        
        .pd-gallery { flex: 0 0 40%; position: sticky; top: 110px; }
        .main-image-wrapper { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 40px; display: flex; align-items: center; justify-content: center; aspect-ratio: 1 / 1; position: relative; box-shadow: 0 10px 30px rgba(15, 23, 42, 0.02); transition: box-shadow 0.3s;}
        .main-image-wrapper:hover { box-shadow: 0 20px 40px rgba(15, 23, 42, 0.05); }
        .main-image-wrapper img { max-width: 100%; max-height: 100%; object-fit: contain; mix-blend-mode: multiply; }
        
        .gallery-pagination { position: absolute; bottom: 20px; right: 20px; background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(8px); border: 1px solid var(--border); border-radius: 40px; display: flex; gap: 4px; padding: 5px 6px; box-shadow: 0 6px 15px rgba(0,0,0,0.05); }
        .page-num { width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; border-radius: 50%; font-size: 0.85rem; font-weight: 800; color: var(--text-muted); cursor: pointer; transition: all 0.2s ease; font-family: 'Outfit', sans-serif; user-select: none;}
        .page-num:hover { color: var(--primary); background: var(--bg-body); }
        .page-num.active { color: #fff; background: var(--primary); box-shadow: 0 4px 10px rgba(15, 23, 42, 0.2); }
        
        .pd-info { flex: 1; padding-top: 5px; }
        .tag-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 20px;}
        .tag-mini { font-size: 0.8rem; background: #fff; padding: 4px 12px; border-radius: 6px; font-weight: 800; color: var(--text-main); border: 1px solid var(--border); display: inline-flex; align-items: center;}
        .tag-mini.highlight { color: var(--accent-blue); background: var(--accent-light); border-color: transparent;}
        
        .pd-title { font-size: 3rem; font-weight: 900; margin-bottom: 20px; line-height: 1.15; color: var(--text-dark); letter-spacing: -0.03em;}
        .pd-specs-list { list-style: none; padding: 0; margin: 0 0 25px 0; border-top: 1px solid var(--border-light); }
        .pd-specs-list li { display: flex; padding: 15px 0; border-bottom: 1px solid var(--border-light); font-size: 1rem; }
        .pd-specs-list li span:first-child { width: 130px; font-weight: 500; color: var(--text-muted); }
        .pd-specs-list li span:last-child { font-weight: 700; color: var(--primary); }

        .pd-desc { font-size: 1.1rem; color: #475569; line-height: 1.8; margin-bottom: 35px; font-weight: 400; }

        .btn-quote { display: inline-flex; align-items: center; justify-content: center; background: var(--text-dark); color: #fff; padding: 18px 40px; border-radius: 12px; font-weight: 800; font-size: 1.1rem; box-shadow: 0 8px 20px rgba(2, 6, 23, 0.15); transition: all 0.3s ease; width: 100%;}
        .btn-quote:hover { transform: translateY(-3px); box-shadow: 0 12px 25px rgba(2, 6, 23, 0.25); background: var(--accent-blue); }
        
        .pd-content-wrapper { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 80px 0; margin-bottom: 80px;}
        .pd-content-inner { max-width: 900px; margin: 0 auto; padding: 0 40px; }
        .pd-content-inner h2 { font-size: 2rem; font-weight: 900; margin-bottom: 30px; color: var(--primary); letter-spacing: -0.02em;}
        .seo-long-article { font-size: 1.1rem; line-height: 1.8; color: #334155; }
        .seo-long-article h3 { font-size: 1.4rem; font-weight: 800; color: var(--primary); margin-top: 40px; margin-bottom: 15px;}
        .seo-long-article ul { margin-bottom: 25px; padding-left: 20px; }
        .seo-long-article li { margin-bottom: 10px; }
        .seo-long-article p { margin-bottom: 25px; }
        
        .section-title-center { text-align: center; margin-bottom: 45px; }
        .section-title-center h2 { font-size: 2.2rem; font-weight: 900; color: var(--primary); margin-bottom: 12px; letter-spacing: -0.02em;}
        .section-title-center p { font-size: 1.05rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

        .related-products-section { max-width: 1240px; margin: 0 auto 90px; padding: 0 40px; }
        .eval-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
        .eval-card { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 20px; box-shadow: 0 8px 20px rgba(15, 23, 42, 0.02); transition: all 0.3s ease; display: flex; flex-direction: column; text-align: center;}
        .eval-card:hover { transform: translateY(-4px); box-shadow: 0 15px 30px rgba(15, 23, 42, 0.06); border-color: var(--border-light); }
        .related-img { width: 100%; height: 130px; display: flex; align-items: center; justify-content: center; margin-bottom: 15px; mix-blend-mode: multiply;}
        .related-img img { max-width: 100%; max-height: 100%; object-fit: contain; }
        .eval-card h3 { font-size: 1.1rem; font-weight: 800; margin: 0 0 12px 0; line-height: 1.3; color: var(--primary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; height: 2.8rem;}
        .view-link { font-weight: 800; color: var(--accent-blue); font-size: 0.9rem; margin-top: auto;}

        .related-articles-section { max-width: 1240px; margin: 0 auto 100px; padding: 0 40px; position: relative; }
        .article-slider-wrapper { overflow: hidden; position: relative; margin: 0 -10px; padding: 10px; }
        .article-slider-track { display: flex; gap: 25px; transition: transform 0.4s ease; }
        .article-slider-item { flex: 0 0 calc((100% - 50px) / 3); background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 24px; box-shadow: 0 8px 20px rgba(15, 23, 42, 0.02); display: flex; flex-direction: column; transition: 0.3s;}
        .article-slider-item:hover { transform: translateY(-4px); box-shadow: 0 15px 30px rgba(15, 23, 42, 0.05); }
        .cat-label { font-size: 0.75rem; font-weight: 800; color: var(--accent-cyan); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; display: block;}
        .article-slider-item h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 10px; line-height: 1.35; color: var(--primary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; height: 3.1rem;}
        .article-slider-item .card-desc { font-size: 0.9rem; color: var(--text-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 20px;}
        
        .slider-arrow { position: absolute; top: 55%; transform: translateY(-50%); width: 44px; height: 44px; background: #fff; border: 1px solid var(--border); color: var(--primary); border-radius: 50%; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; cursor: pointer; z-index: 10; box-shadow: 0 6px 15px rgba(0,0,0,0.05); transition: 0.2s; }
        .slider-arrow:hover { border-color: var(--accent-blue); color: var(--accent-blue); }
        .arrow-prev { left: 0; }
        .arrow-next { right: 0; }

        /* SEO 长文特供样式 */
        .product-full-description { font-size: 1.05rem; line-height: 1.8; color: #334155; }
        .product-full-description h3 { font-size: 1.4rem; font-weight: 800; color: #0f172a; margin: 35px 0 15px 0; padding-bottom: 8px; border-bottom: 2px solid #e2e8f0; }
        .pd-specs-table { width: 100%; border-collapse: collapse; margin: 25px 0; background-color: #ffffff; border-radius: 8px; overflow: hidden; box-shadow: 0 4px 15px rgba(15, 23, 42, 0.03); border: 1px solid #e2e8f0; }
        .pd-specs-table th, .pd-specs-table td { padding: 14px 20px; border-bottom: 1px solid #e2e8f0; border-right: 1px solid #e2e8f0; text-align: left; }
        .pd-specs-table tr:last-child th, .pd-specs-table tr:last-child td { border-bottom: none; }
        .pd-specs-table th { background-color: #f8fafc; color: #0f172a; font-weight: 700; width: 35%; }
        .pd-specs-table td { color: #475569; font-weight: 500; }
        .pd-specs-table tbody tr:hover td, .pd-specs-table tbody tr:hover th { background-color: #f1f5f9; transition: background-color 0.2s ease; }

        @media (max-width: 1024px) {
            .product-detail-container { flex-direction: column; gap: 40px; }
            .pd-gallery { position: static; width: 100%; max-width: 500px; margin: 0 auto;}
            .eval-grid { grid-template-columns: repeat(2, 1fr); }
            .article-slider-item { flex: 0 0 calc((100% - 25px) / 2); }
        }
        @media (max-width: 768px) {
            .product-detail-container, .pd-content-inner, .related-products-section, .related-articles-section { padding: 0 24px; }
            .pd-title { font-size: 2.2rem; }
            .eval-grid { grid-template-columns: 1fr; }
            .article-slider-item { flex: 0 0 100%; }
            .slider-arrow { display: none; }
            .article-slider-track { flex-direction: column; gap: 20px; }
        }