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20px}.tab-nav-wrap.is-stuck{box-shadow:0 3px 12px rgb(0 0 0 / .1);border-bottom:2px solid var(--main-color)}.tab-nav-container{max-width:var(--content-max-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between;width:100%;max-width:100%}.tab-list{display:flex;flex-wrap:wrap;gap:0}.tab-nav-item{padding:18px 22px;font-size:15px;cursor:pointer;color:#444;position:relative;white-space:nowrap;transition:0.2s;font-weight:500}.tab-nav-item.active{color:var(--main-color);font-weight:600}.tab-nav-item.active::after{content:"";width:100%;height:3px;background:var(--main-color);position:absolute;bottom:-1px;left:0}.btn-group-nav{display:flex;gap:12px}.section-wrap{padding:50px 0;scroll-margin-top:70px}.section-wrap h2{font-size:24px;margin-bottom:24px;color:#111;position:relative;padding-bottom:10px;font-weight:700}.section-wrap 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p{color:#666;font-size:13px;line-height:1.6}.video-wrap{position:relative;aspect-ratio:16/9;background:#000;border-radius:8px;overflow:hidden;box-shadow:0 4px 16px rgb(0 0 0 / .1)}.video-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;background:linear-gradient(135deg,#1a1a1a,#333);font-weight:500}.accessories-grid{display:grid;grid-template-columns:1fr;gap:18px}.accessory-item{background:#fff;border-radius:8px;padding:20px 16px;text-align:center;box-shadow:0 2px 10px rgb(0 0 0 / .05);transition:0.3s;border:1px solid #eee}.accessory-item:hover{transform:translateY(-4px);box-shadow:0 8px 18px rgb(0 0 0 / .08)}.accessory-item img{width:70px;height:70px;object-fit:contain;margin:0 auto 12px;transition:none}.accessory-item h4{font-size:14px;color:#222;margin-bottom:4px;font-weight:600}.accessory-item 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16px}.product-top-wrap{grid-template-columns:1fr;padding-bottom:24px;gap:20px}.info-box h1{font-size:20px;margin-bottom:12px}.desc-text{font-size:14px;margin-bottom:20px;line-height:1.7}.thumbnail-item{width:64px;height:64px}.thumbnail-list{gap:8px;margin-top:10px}.param-list{grid-template-columns:1fr;gap:10px;margin-bottom:24px}.param-item{flex-direction:row;justify-content:space-between;align-items:center;gap:10px;padding:12px 14px}.param-name{margin-bottom:0;flex-shrink:0;font-size:13px}.param-value{text-align:right;font-size:15px}.btn-group-hero{display:flex}.btn-group-hero .btn{width:100%}.btn-group-hero .btn-pdf{display:none}.btn-group-nav{display:none}.tab-nav-wrap{margin:0 -15px;padding:0 15px;top:0;width:100%;left:0;right:0}.tab-nav-container{overflow-x:visible;-webkit-overflow-scrolling:auto;scrollbar-width:auto;width:100%;max-width:100%}.tab-list{flex-wrap:wrap;width:100%;gap:4px 0}.tab-nav-item{flex:1 0 auto;text-align:center;padding:12px 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