:root{color:#181818;--primary-red:#b2322e;--primary-dark:#181818;--white:#fff;--off-white:#f4f4f4;--app-bg:#faf9f9;--text-muted:#777;--border-light:#ebebeb;--shadow-sm:0 2px 6px #0000000a;--shadow-md:0 6px 16px #00000014;--shadow-lg:0 16px 48px #0000001f;background:#faf9f9;font-family:DM Sans,Avenir Next,-apple-system,BlinkMacSystemFont,sans-serif}*{box-sizing:border-box}body{background:var(--app-bg);min-width:320px;min-height:100vh;margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer;border:0}.app-shell{background:var(--app-bg);width:min(430px,100%);min-height:100vh;margin:0 auto;padding:0 0 84px}.app-header{z-index:100;border-bottom:1px solid var(--border-light);background:var(--white);justify-content:space-between;align-items:center;height:71.4px;padding:0 20px;display:flex;position:sticky;top:0}.header-title{min-width:0;color:var(--primary-dark);align-items:center;font-size:1.3rem;font-weight:900;display:flex}.header-logo{object-fit:contain;width:59.8px;height:59.8px;display:block}.app-svg-icon{fill:currentColor;width:22px;height:22px;display:block}.header-title span,.message,.see-all{color:var(--primary-red)}.icon-btn,.detail-nav-btn{border:1px solid var(--border-light);width:38px;height:38px;color:var(--primary-dark);background:var(--off-white);border-radius:999px;place-items:center;font-size:1rem;font-weight:900;display:grid}.header-icon-btn,.clear-btn{min-height:34px;color:var(--primary-red);background:var(--off-white);border-radius:7px;place-items:center;padding:0 10px;font-size:.72rem;font-weight:900;display:grid}.header-icon-btn{border-radius:999px;width:38px;height:38px;padding:0}.header-search-form{border:1px solid var(--border-light);background:var(--white);border-radius:999px;flex:1;align-items:center;gap:8px;width:100%;padding:4px;display:flex}.header-search-form input{background:var(--white);border:0;border-radius:999px;outline:0;flex:1;min-width:0;padding:9px 10px;font-size:.82rem}.header-search-form button{border:1px solid var(--border-light);width:30px;height:30px;color:var(--primary-red);background:var(--off-white);border-radius:999px;flex:0 0 30px;place-items:center;padding:0;font-size:.72rem;font-weight:900;display:grid}.close-icon-btn .app-svg-icon{width:19px;height:19px}.message{z-index:300;width:min(370px,100% - 32px);color:var(--primary-dark);background:var(--white);box-shadow:var(--shadow-md);text-align:center;border:1px solid #b2322e3d;border-radius:8px;margin:0;padding:11px 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button,.btn-primary{color:var(--white);background:var(--primary-red);border-radius:8px;font-weight:900}.search-bar button{padding:0 14px}.section{margin:0 0 24px}.section-title{justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;padding:0 20px;display:flex}.section-title h2{color:var(--primary-dark);margin:0;font-size:1.05rem;font-weight:900}.section-title span,.section-title button,.prod-spec,.category-row-card em,.prod-actions span,.detail-desc,.status-card p{color:var(--text-muted)}.see-all{background:var(--off-white);border-radius:999px;place-items:center;width:26px;height:26px;font-size:1.5rem;font-weight:900;line-height:1;display:grid}.category-tabs{scrollbar-width:none;gap:12px;padding:0 20px;display:flex;overflow-x:auto}.category-tabs::-webkit-scrollbar{display:none}.category-tabs button{white-space:nowrap;border:1px solid var(--border-light);color:var(--text-muted);background:var(--white);border-radius:999px;padding:10px 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img{object-fit:cover;filter:grayscale(30%);width:100%;height:100%}.cat-row-info{gap:3px;min-width:0;display:grid}.cat-row-info strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.cat-row-info em{text-overflow:ellipsis;white-space:nowrap;font-size:.74rem;font-style:normal;overflow:hidden}.row-arrow{color:var(--primary-red);font-weight:900}.prod-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:0 20px;display:grid}.prod-card{border:1px solid var(--border-light);background:var(--white);min-width:0;box-shadow:var(--shadow-sm);border-radius:12px;flex-direction:column;padding:14px;display:flex}.prod-card-main{color:inherit;text-align:left;display:contents}.prod-card-img{aspect-ratio:1.15;background:var(--off-white);border-radius:8px;width:100%;margin-bottom:12px;overflow:hidden}.prod-card-img img,.cart-item-img img{object-fit:cover;filter:grayscale(35%);width:100%;height:100%}.prod-card 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20px;display:flex}.filter-count{color:var(--text-muted);font-size:.8rem;font-weight:700}.filter-open-btn{color:var(--primary-red);background:0 0;font-size:.8rem;font-weight:900}.products-screen{padding-bottom:100px}.products-toolbar{justify-content:space-between;align-items:center;gap:12px;padding:12px 20px 18px;display:flex}.products-toolbar span{color:var(--text-muted);font-size:.78rem;font-weight:800}.products-toolbar button{color:var(--primary-dark);background:var(--white);box-shadow:var(--shadow-sm);border-radius:999px;align-items:center;gap:7px;padding:9px 13px;font-size:.78rem;font-weight:900;display:inline-flex}.products-toolbar .app-svg-icon{width:16px;height:16px}.drawer-scrim{z-index:180;background:#00000052;display:none;position:fixed;inset:0}.drawer-scrim.open{display:block}.filter-drawer{z-index:190;border-left:1px solid var(--border-light);background:var(--white);width:min(360px,88vw);box-shadow:var(--shadow-lg);transition:transform 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span{color:var(--text-muted);font-size:.74rem}.attachment-list{justify-items:center;gap:8px;margin-top:10px;display:grid}.attachment-chip{max-width:100%;color:var(--primary-dark);background:var(--off-white);border-radius:6px;align-items:center;gap:8px;padding:7px 8px 7px 10px;font-size:.74rem;font-weight:800;display:flex}.attachment-chip button{width:22px;height:22px;color:var(--white);background:var(--primary-dark);border-radius:50%;font-size:1rem;line-height:1}.cart-item{border:1px solid var(--border-light);background:var(--white);box-shadow:var(--shadow-sm);border-radius:12px;grid-template-columns:70px minmax(0,1fr);gap:14px;padding:14px;display:grid;position:relative}.cart-item-img{background:var(--off-white);border-radius:8px;width:70px;height:70px;overflow:hidden}.cart-item-details h4{color:var(--primary-dark);margin:0 24px 4px 0;font-size:.88rem;line-height:1.3}.cart-remove-btn{color:var(--text-muted);background:0 0;font-size:1.2rem;position:absolute;top:12px;right:12px}.cart-item-actions{margin-top:8px;display:flex}.cart-qty-control{background:var(--off-white);border-radius:999px;align-items:center;gap:8px;padding:3px;display:flex}.cart-qty-control button{border:1px solid var(--border-light);background:var(--white);border-radius:999px;place-items:center;width:28px;height:28px;font-weight:900;display:grid}.cart-qty-control input{text-align:center;background:0 0;border:0;outline:0;width:48px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:900}.rfq-form{margin-top:24px}.rfq-form textarea{resize:vertical;min-height:96px}.cart-submit{min-height:48px}.profile-screen{padding:20px}.profile-title{margin:18px 0 12px;padding:0}.profile-card{color:var(--white);background:var(--primary-dark);box-shadow:var(--shadow-md);border-radius:16px;align-items:center;gap:16px;padding:24px;display:flex;position:relative}.guest-profile-card{align-items:flex-start}.avatar{border:2px solid var(--white);background:var(--primary-red);border-radius:999px;flex:0 0 54px;place-items:center;height:54px;font-size:1.5rem;font-weight:900;display:grid;overflow:hidden}.profile-photo-control{cursor:pointer}.avatar .app-svg-icon{width:28px;height:28px;fill:var(--white)}.avatar img{object-fit:cover;width:100%;height:100%}.profile-card h3{margin:0 0 4px}.profile-card span{color:#aaa;font-size:.72rem;line-height:1.35}.profile-signout{color:var(--white);background:#ffffff1f;border-radius:999px;padding:8px 10px;font-size:.68rem;font-weight:900;position:absolute;top:16px;right:16px}.status-card,.tools-grid button,.tool-card{border:1px solid var(--border-light);background:var(--white);box-shadow:var(--shadow-sm);border-radius:12px;padding:20px}.status-header{border-bottom:1px solid var(--border-light);justify-content:space-between;gap:12px;padding-bottom:12px;display:flex}.status-header span{color:var(--primary-red);font-weight:900}.buyer-meta-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:16px;display:grid}.buyer-meta-grid span{min-width:0;color:var(--text-muted);gap:4px;font-size:.68rem;font-weight:800;display:grid}.buyer-meta-grid strong{color:var(--primary-dark);text-overflow:ellipsis;white-space:nowrap;font-size:.74rem;overflow:hidden}.auth-card{border:1px solid var(--border-light);background:var(--white);box-shadow:var(--shadow-sm);border-radius:12px;gap:12px;padding:20px;display:grid}.auth-card label{color:var(--text-muted);gap:8px;font-size:.74rem;font-weight:900;display:grid}.auth-card input{border:1px solid var(--border-light);width:100%;color:var(--primary-dark);background:var(--white);border-radius:8px;outline:0;padding:12px}.auth-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.guest-link-btn{min-height:42px;color:var(--text-muted);background:0 0;font-size:.78rem;font-weight:900}.auth-note{color:var(--text-muted);font-size:.8rem;line-height:1.45}.signed-out-status p{margin:14px 0 0;font-size:.82rem;line-height:1.5}.tracker-summary{color:var(--text-muted);margin:14px 0 0;font-size:.78rem;line-height:1.45}.profile-timeline{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:18px;display:grid;position:relative}.profile-step{color:var(--text-muted);text-align:center;justify-items:center;gap:8px;font-size:.66rem;font-weight:800;display:grid}.profile-step-circle{background:var(--white);border:2px solid #cfcfcf;border-radius:999px;width:13px;height:13px;display:block}.profile-step.done .profile-step-circle{border-color:var(--primary-red);background:var(--primary-red)}.profile-step.active{color:var(--primary-dark)}.profile-step.active .profile-step-circle{border-color:var(--primary-red)}.tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tools-grid button{color:var(--primary-dark);text-align:left;font-weight:900}.tool-card{align-content:start;gap:8px;min-height:110px;display:grid}.tool-card span{color:var(--primary-dark);font-weight:900}.tool-card small{color:var(--text-muted);font-size:.72rem;line-height:1.35}.tool-screen{background:var(--app-bg);min-height:100vh;padding-bottom:42px}.tool-intro{color:var(--white);background:var(--primary-dark);padding:26px 20px 18px}.tool-intro span,.fitment-result-head>div>span{color:#e78a86;letter-spacing:.04em;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.66rem;font-weight:900}.tool-intro h2{margin:8px 0;font-size:1.35rem;line-height:1.25}.tool-intro p{color:#cfcfcf;max-width:360px;margin:0;font-size:.82rem;line-height:1.5}.finder-card,.fitment-result{border:1px solid var(--border-light);background:var(--white);box-shadow:var(--shadow-sm);border-radius:10px;gap:16px;margin:20px;padding:20px;display:grid}.tool-empty-state,.tool-source-note{color:var(--text-muted);margin:0 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div:last-child{grid-column:1/-1}.tour-screen{min-height:100vh;color:var(--white);background:#111}.tour-header{grid-template-columns:54px minmax(0,1fr) 54px;align-items:center;min-height:82px;padding:14px 20px;display:grid}.tour-header strong{text-align:center;font-size:.96rem}.tour-header .detail-nav-btn{color:var(--primary-dark);background:var(--white)}.tour-viewer{background:#222;height:min(64vh,580px);position:relative;overflow:hidden}.tour-panorama{width:100%;height:100%}.tour-drag-hint{color:var(--white);background:#0000008f;border-radius:5px;padding:7px 9px;font-size:.7rem;font-weight:800;position:absolute;bottom:14px;right:14px}.tour-caption{gap:5px;padding:18px 20px 14px;display:grid}.tour-caption span{font-size:1rem;font-weight:900}.tour-caption strong{color:#c5c5c5;font-size:.75rem}.tour-tabs{gap:8px;padding:0 20px 30px;display:flex;overflow-x:auto}.tour-tabs button{color:#d0d0d0;background:0 0;border:1px solid #555;border-radius:5px;flex:none;padding:9px 11px;font-size:.72rem;font-weight:800}.tour-tabs button.active{border-color:var(--primary-red);color:var(--white);background:var(--primary-red)}.calc-group{gap:8px;display:grid}.calc-label{color:var(--text-muted);font-size:.74rem;font-weight:900}.calc-select{border:1px solid var(--border-light);width:100%;color:var(--primary-dark);background:var(--white);border-radius:8px;outline:0;padding:12px}.video-screen{height:100vh;color:var(--white);background:#050505;overflow:hidden}.video-header{z-index:100;color:var(--white);align-items:center;gap:12px;padding:0 20px;display:flex;position:absolute;top:18px;left:0;right:0}.video-header button{color:var(--white);background:0 0;font-size:1.2rem}.video-canvas{background:linear-gradient(#00000038,#000c),radial-gradient(circle at 50% 35%,#3d3d3d 0,#111 48%,#050505 100%);place-items:center;height:100vh;display:grid;position:relative}.video-overlay-info{position:absolute;bottom:48px;left:20px;right:82px}.video-overlay-info span{background:var(--primary-red);border-radius:4px;margin-bottom:8px;padding:4px 8px;font-size:.65rem;font-weight:900;display:inline-block}.video-overlay-info h2{margin:0 0 8px;font-size:1.2rem;line-height:1.25}.video-overlay-info p{color:#ccc;margin:0;font-size:.85rem;line-height:1.4}.action-side-bar{gap:18px;display:grid;position:absolute;bottom:60px;right:20px}.action-side-bar button,.action-side-bar a{width:48px;min-height:48px;color:var(--white);background:#ffffff1f;border:1px solid #ffffff3d;border-radius:999px;place-items:center;font-size:.72rem;font-weight:900;text-decoration:none;display:grid}.bottom-nav{z-index:100;border-top:1px solid var(--border-light);background:var(--white);grid-template-columns:repeat(5,1fr);width:min(430px,100%);height:64px;padding-bottom:8px;display:grid;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.bottom-nav button{color:var(--text-muted);background:0 0;grid-template-rows:24px auto;align-content:center;place-items:center;gap:2px;font-size:.66rem;font-weight:900;display:grid;position:relative}.bottom-nav .app-svg-icon{width:21px;height:21px}.bottom-nav .active{color:var(--primary-red)}.nav-badge{border:2px solid var(--white);min-width:18px;height:18px;color:var(--white);background:var(--primary-red);border-radius:999px;place-items:center;padding:0 5px;font-size:.68rem;line-height:1;display:grid;position:absolute;top:8px;right:16px}.app-modal-overlay{z-index:220;background:#0000006b;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.app-modal-card{background:var(--white);width:min(330px,100%);box-shadow:var(--shadow-lg);text-align:center;border-radius:14px;gap:12px;padding:26px;display:grid}.app-modal-card h3{color:var(--primary-dark);margin:0}.app-modal-card p{color:var(--text-muted);margin:0;font-size:.84rem;line-height:1.45}@media (width<=360px){.prod-grid{gap:10px;padding:0 14px}.prod-card{padding:10px}.filter-pair{grid-template-columns:1fr}}