:root{
  --blue:#2457e6;--blue-dark:#1742bf;--orange:#ff7a1a;--ink:#111827;--muted:#6b7280;
  --line:#e8ebf0;--soft:#f7f8fa;--success:#16824b;--danger:#d83a48;
}
*{box-sizing:border-box} [hidden]{display:none!important}
html,body{margin:0;min-width:320px;overflow-x:hidden}
body{font-family:'Manrope',sans-serif;color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased}
button,a{font:inherit;-webkit-tap-highlight-color:transparent}
.page-wrapper{min-height:100vh;display:flex;flex-direction:column}.container{width:min(1560px,calc(100% - 56px));margin:0 auto}
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-content{height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}
.back-link,.brand-link{display:inline-flex;align-items:center;text-decoration:none;color:var(--ink)}
.back-link{gap:9px;font-size:.9rem;font-weight:700}.back-link:hover{color:var(--blue)}
.brand-link{gap:10px}.brand-link strong{font-size:1.03rem}.logo-img{width:42px;height:42px;object-fit:contain;border-radius:12px}
.header-right{justify-self:end;color:var(--muted);font-size:.82rem;font-weight:600}
.main-content{flex:1;padding:22px 0 72px}.breadcrumbs{display:flex;align-items:center;gap:9px;margin:0 0 18px;color:#9aa1ad;font-size:.76rem;white-space:nowrap;overflow:hidden}
.breadcrumbs a{color:#7c8492;text-decoration:none}.breadcrumbs strong{color:#454b55;overflow:hidden;text-overflow:ellipsis}
.product-stage{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(380px,470px);gap:42px;align-items:start;padding-bottom:48px;border-bottom:1px solid var(--line)}
.product-thumbs{margin-top:14px}.gallery-thumbs{display:grid;grid-template-columns:repeat(auto-fit,minmax(72px,88px));gap:10px;margin:0;overflow:visible}.gallery-thumb{width:100%;aspect-ratio:1;padding:7px;border:1px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;transition:.18s ease}.gallery-thumb:hover{border-color:#b9c6e8}.gallery-thumb.active{border:2px solid var(--blue);padding:6px}.gallery-thumb img{width:100%;height:100%;object-fit:contain;display:block}
.product-media-column{min-width:0}.product-image-box{position:relative;min-height:690px;display:grid;place-items:center;padding:46px;background:var(--soft);border-radius:24px;overflow:hidden}
.product-img{display:block;width:100%;height:100%;max-height:600px;object-fit:contain;filter:drop-shadow(0 22px 26px rgba(17,24,39,.10));transition:transform .25s ease}.zoomable-media{cursor:zoom-in}.product-image-box:hover .product-img{transform:scale(1.025)}
.discount-badge{position:absolute;top:18px;left:18px;z-index:5;padding:8px 11px;border-radius:999px;color:#fff;background:var(--orange);font-size:.78rem;font-weight:800}
.gallery-arrow{position:absolute;top:50%;z-index:6;width:42px;height:42px;display:grid;place-items:center;transform:translateY(-50%);border:1px solid var(--line);border-radius:50%;background:rgba(255,255,255,.92);color:var(--ink);font-size:1.7rem;cursor:pointer;box-shadow:0 10px 25px rgba(17,24,39,.10)}
.gallery-prev{left:14px}.gallery-next{right:14px}.gallery-arrow:hover{background:#fff}
.product-info{position:sticky;top:94px;min-width:0;padding:6px 0 0 8px}
.product-info h1{margin:15px 0 0;font-size:clamp(1.75rem,2.3vw,2.65rem);line-height:1.15;letter-spacing:-.035em;font-weight:800;text-wrap:balance}
.stock-line{display:flex;align-items:center;gap:8px;margin-top:20px;font-size:.86rem;font-weight:700}.stock-line span{width:8px;height:8px;border-radius:50%;background:currentColor}.in-stock{color:var(--success)}.out-of-stock{color:var(--danger)}
.price-block{margin-top:30px}.solo-price-wrapper{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.price-single-normal,.solo-price-new{font-size:clamp(2.25rem,3vw,3.35rem);font-weight:800;letter-spacing:-.055em}.solo-price-old{color:#9ca3af;font-size:1.1rem;text-decoration:line-through;font-weight:700}.saving-line{margin-top:4px;color:var(--orange);font-size:.82rem;font-weight:800}
.new-product-actions{margin-top:24px}.buy-btn{width:100%;height:62px;padding:0 18px 0 22px;border:0;border-radius:16px;display:flex;align-items:center;justify-content:space-between;background:var(--blue);color:#fff;font-weight:800;font-size:1rem;cursor:pointer;box-shadow:0 14px 30px rgba(36,87,230,.22);transition:.18s ease}.buy-btn:hover{background:var(--blue-dark);transform:translateY(-1px)}.buy-btn b{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:rgba(255,255,255,.16);font-size:1.35rem}.buy-btn:disabled{justify-content:center;background:#e5e7eb;color:#8b93a1;box-shadow:none;cursor:not-allowed}.buy-btn:disabled b{display:none}
.weight-info{margin-top:10px;color:var(--muted);font-size:.8rem}.store-note{display:grid;grid-template-columns:38px 1fr;gap:13px;margin-top:20px;padding:16px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,#fff,#f8fbff);color:#4b5563;box-shadow:0 14px 28px rgba(17,24,39,.05)}.store-note svg{width:38px;height:38px;padding:8px;border-radius:12px;background:#edf2ff;color:var(--blue)}.store-note strong,.store-note span{display:block}.store-note strong{font-size:.9rem}.store-note span{margin-top:5px;color:var(--muted);font-size:.74rem}.store-address-link{display:inline-flex;align-items:center;margin-top:7px;color:var(--blue);font-size:.84rem;font-weight:800;text-decoration:none;line-height:1.35}.store-address-link:hover{text-decoration:underline}
.quick-specs{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;margin-top:10px}.quick-spec{min-height:62px;padding:13px 0;border-bottom:1px solid var(--line)}.quick-spec.with-image{display:grid;grid-template-columns:minmax(0,1fr) 58px;gap:10px;align-items:center}.quick-spec span,.characteristic-row span{display:block;color:#9299a5;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}.quick-spec strong,.characteristic-row strong{display:block;margin-top:4px;color:var(--ink);font-size:.86rem;line-height:1.35}.quick-spec-image{width:58px;height:46px;object-fit:contain}
.product-detail-area{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.7fr);gap:44px;padding-top:42px}.detail-tabs-section{min-width:0}.detail-tabs{display:flex;flex-wrap:wrap;gap:10px 24px;overflow:visible;border-bottom:1px solid var(--line)}.detail-tab{flex:0 0 auto;position:relative;padding:0 0 16px;border:0;background:none;color:#8a929f;font-size:.88rem;font-weight:800;cursor:pointer}.detail-tab.active{color:var(--ink)}.detail-tab.active:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;border-radius:999px;background:var(--blue)}.detail-panels{padding-top:28px}.detail-panel{display:none}.detail-panel.active{display:block}.rich-text{max-width:900px}.rich-text p{margin:0 0 16px;color:#4b5563;font-size:.98rem;line-height:1.78}.detail-block+.detail-block{margin-top:30px;padding-top:28px;border-top:1px solid var(--line)}.detail-block h3,.characteristics-section h2,.brand-products-section h2{margin:0 0 18px;font-size:1.25rem;letter-spacing:-.02em}.fact-columns{display:grid;grid-template-columns:1fr 1fr;gap:28px}.fact-columns .detail-block+.detail-block{margin:0;padding:0;border:0}.fact-list{display:grid}.fact-row{display:grid;grid-template-columns:8px minmax(0,1fr) auto;gap:10px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}.fact-dot{width:6px;height:6px;border-radius:50%;background:var(--orange)}.fact-label{color:#606977;font-size:.9rem}.fact-row strong{font-size:.9rem;text-align:right}
.characteristics-section{grid-column:2;grid-row:1;padding-left:30px;border-left:1px solid var(--line)}.characteristics-grid{display:grid}.characteristic-row{padding:13px 0;border-bottom:1px solid var(--line)}.characteristic-row.with-image{display:grid;grid-template-columns:minmax(0,1fr) 58px;gap:10px;align-items:center}.characteristic-image{width:58px;height:46px;object-fit:contain}
.brand-products-section{grid-column:1/-1;margin-top:16px;padding-top:38px;border-top:1px solid var(--line)}.section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:16px}.section-heading span{color:var(--muted);font-size:.82rem;font-weight:700}.brand-products-row{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;margin-top:18px}.brand-product-card{min-width:0;display:flex;flex-direction:column;padding:0;border:0;background:#fff;color:var(--ink);text-decoration:none;cursor:pointer}.brand-product-image{height:190px;display:grid;place-items:center;padding:16px;border-radius:18px;background:var(--soft);overflow:hidden}.brand-product-image img{width:100%;height:100%;object-fit:contain}.brand-product-card h3{flex:1;margin:13px 2px 0;font-size:.86rem;line-height:1.42}.brand-product-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:14px 2px 0}.brand-product-bottom strong{font-size:1rem}.brand-cart-btn{height:36px;padding:0 12px;border:0;border-radius:10px;background:#edf2ff;color:var(--blue);font-weight:800;cursor:pointer}.brand-cart-btn:hover{background:var(--blue);color:#fff}.brand-cart-btn:disabled{background:#eee;color:#9aa1ad}
.loader{min-height:560px;display:flex;align-items:center;justify-content:center;gap:12px}.loader strong{font-size:.9rem}.spinner{width:25px;height:25px;border:3px solid #dfe5f4;border-top-color:var(--blue);border-radius:50%;animation:spin .75s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.footer{margin-top:auto;padding:24px 0;border-top:1px solid var(--line);color:#9aa1ad;font-size:.76rem;text-align:center}.footer .container{display:flex;justify-content:center}
.media-lightbox{position:fixed;inset:0;z-index:9999;display:grid;place-items:center;opacity:0;pointer-events:none;background:rgba(8,12,20,.94);transition:.2s}.media-lightbox.active{opacity:1;pointer-events:auto}.lightbox-content img{max-width:90vw;max-height:90vh;object-fit:contain}.lightbox-close,.lightbox-arrow{position:absolute;z-index:2;display:grid;place-items:center;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.10);color:#fff;cursor:pointer}.lightbox-close{top:22px;right:22px;width:46px;height:46px;border-radius:50%;font-size:2rem}.lightbox-arrow{top:50%;width:50px;height:50px;transform:translateY(-50%);border-radius:50%;font-size:2rem}.lightbox-prev{left:22px}.lightbox-next{right:22px}
@media(max-width:1180px){.container{width:min(100% - 32px,1100px)}.product-stage{grid-template-columns:minmax(0,1fr) 360px;gap:28px}.product-image-box{min-height:560px;padding:34px}.product-info{padding-left:0}.product-detail-area{gap:28px}.brand-products-row{grid-template-columns:repeat(4,1fr)}}
@media(max-width:900px){.header-content{height:64px}.header-right{display:none}.container{width:calc(100% - 24px)}.main-content{padding-top:12px}.breadcrumbs{margin-bottom:12px}.product-stage{display:block;padding-bottom:30px}.gallery-thumbs{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}.product-image-box{min-height:420px;padding:28px;border-radius:18px}.product-info{position:static;margin-top:24px}.product-info h1{font-size:1.75rem}.price-block{margin-top:22px}.quick-specs{grid-template-columns:1fr 1fr}.product-detail-area{display:block;padding-top:30px}.characteristics-section{margin-top:34px;padding:30px 0 0;border-left:0;border-top:1px solid var(--line)}.brand-products-section{margin-top:34px}.brand-products-row{display:flex;overflow-x:auto;gap:12px;padding-bottom:8px;scroll-snap-type:x mandatory}.brand-product-card{flex:0 0 44%;scroll-snap-align:start}.fact-columns{grid-template-columns:1fr}.footer{margin-top:20px}}
@media(max-width:560px){.header-content{grid-template-columns:1fr auto}.brand-link{justify-self:end}.brand-link strong{display:none}.product-image-box{min-height:330px;padding:24px}.gallery-arrow{width:38px;height:38px}.gallery-thumbs{grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}.gallery-thumb{border-radius:10px;padding:5px}.gallery-thumb.active{padding:4px}.product-info h1{font-size:1.48rem;line-height:1.2}.price-single-normal,.solo-price-new{font-size:2.35rem}.buy-btn{height:58px}.quick-specs{grid-template-columns:1fr}.detail-tabs{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden}.detail-tab{width:100%;padding:12px 8px;border-bottom:1px solid var(--line);font-size:.75rem;text-align:center}.detail-tab:nth-child(odd){border-right:1px solid var(--line)}.detail-tab.active{background:#f3f6ff;color:var(--blue)}.detail-tab.active:after{display:none}.brand-product-card{flex-basis:72%}.brand-product-image{height:180px}.lightbox-arrow{width:42px;height:42px}.lightbox-prev{left:10px}.lightbox-next{right:10px}}

/* Brand shelf: keep product photos fully visible and centered. */
.brand-products-section .brand-products-row{
    align-items:start;
}
.brand-products-section .brand-product-card{
    min-width:0;
    color:var(--ink);
    text-decoration:none;
}
.brand-products-section .brand-product-image{
    width:100%;
    height:220px;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:18px;
    border-radius:18px;
    background:var(--soft);
    overflow:hidden;
}
.brand-products-section .brand-product-image img{
    display:block;
    width:100%!important;
    height:100%!important;
    max-width:100%!important;
    max-height:100%!important;
    object-fit:contain!important;
    object-position:center center!important;
    transform:none!important;
    filter:none!important;
}
.brand-products-section .brand-product-card:hover .brand-product-image img{
    transform:none!important;
}
@media(max-width:900px){
    .brand-products-section .brand-product-image{
        height:190px;
        padding:16px;
    }
}
@media(max-width:560px){
    .brand-products-section .brand-product-image{
        height:170px;
    }
}

/* v4: vertical desktop thumbnails, clean separators and mobile swipe */
.breadcrumbs{min-width:0}.breadcrumbs .breadcrumb-brand{font-weight:700;color:var(--blue)}.breadcrumbs strong{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.product-gallery-layout{display:grid;grid-template-columns:92px minmax(0,1fr);gap:16px;align-items:stretch}
.product-thumbs{min-width:0;margin:0}.gallery-thumbs-shell{height:690px;display:grid;grid-template-rows:34px minmax(0,1fr) 34px;gap:8px}
.gallery-thumbs{display:flex;flex-direction:column;gap:10px;min-height:0;overflow:hidden;scrollbar-width:none}.gallery-thumbs::-webkit-scrollbar{display:none}
.gallery-thumb{flex:0 0 84px;width:84px;height:84px;aspect-ratio:auto}
.thumb-nav{width:84px;height:34px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#596273;font-size:1.05rem;font-weight:800;cursor:pointer}.thumb-nav:hover{border-color:#bec8db;background:#f7f9fd}
.detail-block-separated{position:relative;margin-top:36px!important;padding-top:32px!important;border-top:0!important}.detail-block-separated:before{content:"";position:absolute;left:0;right:0;top:0;height:3px;border-radius:999px;background:#111827}
@media(max-width:1180px){.gallery-thumbs-shell{height:560px}.product-gallery-layout{grid-template-columns:84px minmax(0,1fr)}.gallery-thumb,.thumb-nav{width:76px}.gallery-thumb{height:76px;flex-basis:76px}}
@media(max-width:900px){.product-gallery-layout{display:flex;flex-direction:column}.product-image-box{order:1}.product-thumbs{order:2}.gallery-thumbs-shell{height:auto;display:block}.gallery-thumbs{display:flex;flex-direction:row;gap:8px;overflow:hidden}.gallery-thumb{flex:0 0 72px;width:72px;height:72px}.thumb-nav{display:none}.product-img{touch-action:pan-y}.product-image-box{touch-action:pan-y}}
@media(max-width:560px){.breadcrumbs{gap:6px;font-size:.68rem}.breadcrumbs strong{max-width:45vw}.gallery-thumb{flex-basis:64px;width:64px;height:64px}}