:root{--navy:#183b60;--blue:#0877c9;--blue-dark:#075fa3;--orange:#f39224;--green:#55a946;--ink:#172f4c;--muted:#6d8295;--line:#dce6ef;--bg:#eff6fd;--surface:#fff;--shadow:0 9px 28px #153b5b0b}
*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:linear-gradient(130deg,#e3f1ff 0,#eff6fd 48%,#eef6ee 100%);min-height:100vh}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{max-width:760px;min-height:100vh;margin:0 auto;background:linear-gradient(140deg,#eff6ff 0%,#f7fafe 56%,#f5fbf2 100%);box-shadow:0 0 38px #0b2d4c14;position:relative;padding-bottom:88px}.topbar{height:78px;padding:10px 22px;display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}.brand{background:none;border:0;display:flex;align-items:center;gap:8px;color:var(--navy);font-weight:800;font-size:19px;padding:0}.brand img{width:118px;height:46px;object-fit:contain}.top-actions{display:flex;align-items:center;gap:9px}.demo-pill{font-size:10px;font-weight:800;letter-spacing:.04em;color:#7c8d9b;background:#f0f3f5;padding:8px 10px;border-radius:20px}.icon-button{border:1px solid var(--line);background:#fff;border-radius:14px;padding:9px 11px;color:var(--blue);font-size:13px;font-weight:700}.icon-button b{display:inline-grid;place-items:center;background:var(--orange);color:white;border-radius:50%;min-width:20px;height:20px;margin-left:5px;font-size:11px}.main-content{padding:22px 22px 28px;min-height:calc(100vh - 155px)}.hero-search{width:100%;height:58px;border:1px solid var(--line);background:#fff;border-radius:18px;padding:0 18px;display:flex;align-items:center;gap:12px;color:var(--muted);box-shadow:var(--shadow)}.hero-search input{border:0;outline:0;width:100%;font-size:16px;color:var(--ink)}.section-heading{display:flex;justify-content:space-between;align-items:center;margin:25px 0 13px}.section-heading h2{font-size:21px;margin:0;letter-spacing:-.02em}.text-button{border:0;background:transparent;color:var(--blue);font-weight:750;padding:7px}.category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.category-tile{background:white;border:1px solid #e8eef4;border-radius:18px;padding:12px;min-height:70px;display:flex;align-items:center;gap:12px;text-align:left;color:var(--ink);font-weight:750;box-shadow:var(--shadow)}.category-icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:#e9f3fc;font-size:22px}.hero-banner{margin:20px 0 25px;min-height:175px;border-radius:22px;padding:22px 24px;color:white;background:radial-gradient(circle at 85% 35%,#40a9e0 0,#1889cf 32%,#174d7c 75%,#153a5d 100%);position:relative;overflow:hidden}.hero-banner:after{content:"";position:absolute;width:230px;height:230px;border:1px solid #ffffff60;border-radius:50%;right:-15px;top:-80px;box-shadow:0 0 0 17px #ffffff18,0 0 0 36px #ffffff10}.hero-banner small{font-size:14px;color:#e2f3ff}.hero-banner h1{font-size:29px;line-height:1.1;max-width:390px;margin:9px 0 17px;position:relative;z-index:1}.hero-banner button{background:white;color:var(--navy);border:0;border-radius:12px;padding:11px 16px;font-weight:800;position:relative;z-index:1}.product-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.product-card{min-width:0;background:white;border:1px solid #e8eef4;border-radius:18px;padding:11px;box-shadow:var(--shadow);display:flex;flex-direction:column;cursor:pointer}.product-visual{height:132px;border-radius:13px;background:linear-gradient(145deg,#f0f5f9,#e2edf5);display:grid;place-items:center;font-size:45px;position:relative;margin-bottom:10px}.product-visual .sale-tag{position:absolute;left:8px;top:8px;background:var(--orange);color:white;border-radius:8px;padding:5px 8px;font-size:12px;font-weight:800}.product-name{font-size:14px;line-height:1.32;font-weight:750;min-height:38px}.product-model{font-size:11px;color:var(--muted);margin:4px 0 8px}.price-line{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px;margin-top:auto}.current-price{font-weight:850;font-size:18px}.old-price{text-decoration:line-through;color:#94a1ad;font-size:12px}.availability{font-size:11px;font-weight:700;color:var(--green);margin-top:7px}.availability.wait{color:#ac741b}.availability.none{color:#8b969f}.primary-button,.secondary-button{border:0;border-radius:12px;padding:12px 15px;font-weight:800}.primary-button{background:var(--blue);color:#fff}.primary-button:hover{background:var(--blue-dark)}.secondary-button{background:#fff;color:var(--blue);border:1px solid var(--line)}.small-button{margin-top:10px;padding:9px 10px;font-size:13px}.stock-button{background:#f0f7ff;color:var(--blue);border:1px solid #d5e9fa}.page-title{font-size:27px;margin:0 0 7px;letter-spacing:-.03em}.page-lead{color:var(--muted);font-size:14px;margin:0 0 20px}.search-row{display:flex;gap:10px;margin:14px 0}.search-row input,.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:12px;padding:13px 14px;color:var(--ink);outline:0}.search-row input:focus,.field input:focus,.field select:focus{border-color:var(--blue);box-shadow:0 0 0 3px #0877c91c}.chips{display:flex;gap:8px;overflow:auto;padding:2px 0 6px}.chip{white-space:nowrap;border:1px solid var(--line);border-radius:20px;background:#fff;padding:8px 12px;color:var(--muted);font-size:12px;font-weight:700}.chip.active{background:#e2f1ff;border-color:#aed7f5;color:var(--blue)}.detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px}.detail-visual{min-height:300px;border-radius:22px;background:linear-gradient(145deg,#edf4f9,#dceaf3);display:grid;place-items:center;font-size:90px;position:relative}.detail-copy h1{font-size:26px;line-height:1.15;margin:0 0 6px}.spec-list{padding:0;list-style:none;margin:17px 0}.spec-list li{display:flex;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);font-size:13px}.detail-price{background:#fff;border-radius:16px;padding:15px;margin:15px 0}.qty-control{display:flex;align-items:center;gap:8px;margin:15px 0}.qty-control button{width:38px;height:38px;border:1px solid var(--line);border-radius:11px;background:white;font-size:20px;color:var(--navy)}.qty-control input{width:55px;text-align:center;border:0;font-size:17px;font-weight:800;color:var(--ink)}.inline-actions{display:flex;gap:8px;flex-wrap:wrap}.cart-list{display:grid;gap:14px}.cart-item,.summary-box,.form-box,.empty-state,.order-card,.more-link{background:#fff;border:1px solid #e4ecf3;border-radius:18px;padding:16px;box-shadow:var(--shadow)}.cart-item{display:grid;grid-template-columns:70px 1fr auto;gap:12px;align-items:center}.cart-thumb{height:68px;width:68px;border-radius:13px;background:#edf4f8;display:grid;place-items:center;font-size:29px}.cart-item h3{font-size:14px;margin:0 0 4px}.remove-button{border:0;background:transparent;color:var(--blue);font-weight:700;padding:7px}.cart-total{display:flex;justify-content:space-between;margin:11px 0;font-size:14px}.cart-total.grand{font-size:19px;font-weight:850;border-top:1px solid var(--line);padding-top:14px}.notice{background:#fff1df;color:#925814;padding:12px 14px;border-radius:13px;font-size:13px;margin:14px 0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:grid;gap:6px;margin:11px 0}.field span{font-size:12px;font-weight:750;color:var(--muted)}.field.full{grid-column:1/-1}.choice-grid{display:flex;gap:8px;flex-wrap:wrap}.choice{flex:1;min-width:130px;border:1px solid var(--line);background:#fff;border-radius:13px;padding:12px;font-size:13px;font-weight:700;color:var(--ink);text-align:left}.choice.selected{border-color:var(--blue);background:#eef7ff;color:var(--blue)}.split-label{font-size:12px;color:var(--muted);font-weight:800;text-transform:uppercase;letter-spacing:.05em}.order-number{font-weight:850;color:var(--blue)}.order-card{margin:10px 0}.order-card h3{font-size:16px;margin:0 0 6px}.order-status{display:inline-flex;background:#fff1dd;color:#956017;padding:6px 9px;border-radius:9px;font-size:11px;font-weight:800;margin-top:7px}.empty-state{text-align:center;padding:30px 18px;color:var(--muted)}.empty-state .big-icon{font-size:42px;margin-bottom:10px}.more-link{width:100%;display:flex;align-items:center;gap:12px;text-align:left;color:var(--ink);margin:10px 0;font-weight:700}.more-link .mi{font-size:21px;width:30px;text-align:center}.notice-box{padding:14px 16px;border-radius:14px;background:#edf5fc;color:var(--navy);font-size:13px;line-height:1.5;margin:12px 0}.bottom-nav{position:fixed;z-index:6;bottom:0;left:50%;transform:translateX(-50%);width:min(760px,100%);height:72px;padding:7px 12px calc(7px + env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--line)}.nav-item{position:relative;border:0;background:transparent;color:#8594a0;font-size:11px;display:grid;justify-items:center;align-content:center;gap:3px}.nav-item span{font-size:22px;line-height:1}.nav-item.active{color:var(--blue);font-weight:800}.nav-count{position:absolute;top:0;right:22%;background:var(--orange);color:#fff;border-radius:20px;padding:2px 6px;font-style:normal;font-size:10px}.hidden{display:none!important}.toast{position:fixed;z-index:10;left:50%;bottom:86px;transform:translate(-50%,12px);opacity:0;pointer-events:none;background:#12365b;color:white;padding:12px 17px;border-radius:13px;font-size:13px;box-shadow:0 8px 25px #153b5b30;transition:.2s;max-width:calc(100% - 32px);text-align:center}.toast.show{opacity:1;transform:translate(-50%,0)}.back-button{border:0;background:transparent;color:var(--blue);font-weight:800;padding:3px 0 15px}.cart-empty{margin:20px 0}.item-actions{display:flex;align-items:center;gap:8px}.item-actions .qty-control{margin:8px 0}.seller-hidden{display:none}
@media(min-width:761px){.app-shell{margin:22px auto;border-radius:25px;overflow:hidden;min-height:calc(100vh - 44px)}.bottom-nav{bottom:22px;border-radius:0 0 25px 25px}.topbar{border-radius:25px 25px 0 0}}
@media(max-width:560px){.topbar{height:68px;padding:8px 14px}.brand img{width:94px;height:40px}.brand span{font-size:17px}.demo-pill{display:none}.main-content{padding:18px 15px 26px}.hero-banner{min-height:162px;padding:20px}.hero-banner h1{font-size:25px}.category-tile{padding:10px;min-height:64px;font-size:13px}.category-icon{width:38px;height:38px}.product-visual{height:112px}.product-name{font-size:13px}.current-price{font-size:16px}.detail-layout{grid-template-columns:1fr}.detail-visual{min-height:235px;font-size:78px}.detail-copy h1{font-size:24px}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.cart-item{grid-template-columns:58px 1fr auto;padding:12px}.cart-thumb{width:56px;height:58px}.choice{min-width:100px}.bottom-nav{height:70px}.nav-count{right:14%}}

.product-visual img{max-width:86%;max-height:88%;object-fit:contain}.detail-visual img{max-width:86%;max-height:86%;object-fit:contain;border-radius:12px}.cart-thumb img{max-width:90%;max-height:90%;object-fit:contain}.import-preview{margin-top:14px;padding:14px;border:1px solid var(--line);border-radius:14px;background:#f8fbfe}.import-preview>b{font-size:15px}.import-sample{display:grid;gap:8px;margin-top:11px}.import-sample>div{display:grid;gap:3px;border-bottom:1px solid var(--line);padding-bottom:8px;font-size:12px}.import-sample span{color:var(--muted)}

/* Keep supplier and manufacturer photos inside their card frames. */
.product-visual{overflow:hidden;isolation:isolate}
.product-visual>img{display:block;width:100%;height:100%;max-width:100%;max-height:100%;padding:8px;object-fit:contain}
.detail-visual{overflow:hidden}
.detail-visual>img{display:block;width:88%;height:88%;max-width:100%;max-height:280px;object-fit:contain}
.cart-thumb{overflow:hidden}
.cart-thumb>img{display:block;width:100%;height:100%;max-width:100%;max-height:100%;padding:4px;object-fit:contain}
.availability-filter{display:flex;align-items:center;gap:10px;margin:14px 0;color:var(--muted);font-size:13px;font-weight:750}
.availability-filter>span{flex:0 0 auto}
.availability-filter select{flex:1;min-width:0;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);padding:11px 13px;font-weight:650}
.chips{scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}

.catalog-filter-panel{margin:14px 0 18px;padding:13px 14px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.catalog-filter-panel summary{cursor:pointer;color:var(--ink);font-size:14px;font-weight:800;list-style:none}
.catalog-filter-panel summary::-webkit-details-marker{display:none}
.catalog-filter-panel summary:after{content:'⌄';float:right;color:var(--blue);font-size:18px;line-height:14px}
.catalog-filter-panel[open] summary{margin-bottom:12px}
.catalog-filter-panel[open] summary:after{content:'⌃'}
.catalog-filter-panel summary span{display:block;margin-top:3px;color:var(--muted);font-size:11px;font-weight:500}
.filter-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.filter-field{display:grid;gap:5px;min-width:0;color:var(--muted);font-size:11px;font-weight:700}
.filter-field select,.price-filter input{min-width:0;width:100%;height:40px;border:1px solid var(--line);border-radius:10px;background:#fbfdff;color:var(--ink);padding:0 10px;font-size:12px}
.price-filter>div{display:flex;gap:6px}
.clear-filters{margin-top:10px;padding:4px 0;border:0;background:none;color:var(--blue);font-size:12px;font-weight:750}

.product-gallery{min-width:0}
.gallery-arrow{position:absolute;top:50%;transform:translateY(-50%);display:grid;place-items:center;width:36px;height:36px;border:1px solid #d7e5f0;border-radius:50%;background:#ffffffed;color:var(--blue);font-size:25px;line-height:1;box-shadow:0 2px 8px #12334c18}
.gallery-prev{left:12px}.gallery-next{right:12px}
.gallery-count{position:absolute;right:12px;bottom:12px;padding:5px 9px;border-radius:14px;background:#17354dcc;color:white;font-size:11px;font-weight:750}
.gallery-thumbnails{display:flex;gap:9px;overflow-x:auto;padding:10px 2px 4px;scrollbar-width:none}
.gallery-thumbnails::-webkit-scrollbar{display:none}
.gallery-thumb{flex:0 0 66px;height:58px;padding:4px;border:1px solid var(--line);border-radius:10px;background:#fff;overflow:hidden}
.gallery-thumb.active{border:2px solid var(--blue)}
.gallery-thumb img{width:100%;height:100%;object-fit:contain}
@media(max-width:560px){.gallery-thumb{flex-basis:58px;height:52px}.gallery-arrow{width:32px;height:32px}}
.product-visual{overflow:hidden}.product-visual img{display:block;width:100%;height:100%;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.detail-visual{height:300px;min-height:0;overflow:hidden}.detail-visual>img{display:block;width:88%;height:88%;max-width:100%;max-height:none;object-fit:contain;object-position:center}.product-gallery{min-width:0}.gallery-thumbnails img{display:block;width:100%;height:100%;object-fit:contain}
@media(max-width:560px){.detail-visual{height:235px}}
.product-visual img,.detail-visual>img{cursor:zoom-in}
.photo-viewer{position:fixed;inset:0;z-index:30;background:#edf5fcf5;display:grid;grid-template-rows:minmax(0,1fr);place-items:center;min-width:0;min-height:0;padding:72px 72px 68px;cursor:zoom-out;touch-action:pan-y}
.photo-viewer>img{display:block;max-width:100%;max-height:100%;min-width:0;min-height:0;object-fit:contain;cursor:default;filter:drop-shadow(0 10px 24px #173b5b12)}
.photo-viewer-close{position:absolute;top:max(14px,env(safe-area-inset-top));right:16px;width:48px;height:48px;border:1px solid #cddce8;border-radius:50%;background:#ffffffed;color:var(--navy);font-size:32px;line-height:1;box-shadow:0 4px 16px #183b6018}
.photo-viewer-arrow{position:absolute;top:50%;transform:translateY(-50%);display:grid;place-items:center;width:48px;height:48px;border:1px solid #cddce8;border-radius:50%;background:#ffffffed;color:var(--blue);font-size:34px;line-height:1;box-shadow:0 4px 16px #183b6018}
.photo-viewer-prev{left:16px}.photo-viewer-next{right:16px}
.photo-viewer-count{position:absolute;bottom:max(18px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);padding:7px 13px;border-radius:20px;background:#ffffffed;border:1px solid #cddce8;color:var(--navy);font-size:14px;font-weight:800;box-shadow:0 4px 16px #183b6018}
@media(max-width:560px){.photo-viewer{padding:70px 54px 70px}.photo-viewer-arrow{width:40px;height:40px;font-size:29px}.photo-viewer-prev{left:8px}.photo-viewer-next{right:8px}.photo-viewer-close{right:12px}}
.catalog-tools{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:13px 0 4px}
.catalog-filter-button{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--navy);padding:9px 13px;font-weight:800;box-shadow:var(--shadow)}
.catalog-filter-button>span{font-size:20px;color:var(--blue);line-height:1}
.catalog-filter-button>b{display:grid;place-items:center;min-width:20px;height:20px;border-radius:50%;background:var(--blue);color:white;font-size:11px}
.catalog-sort-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:40px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--navy);padding:8px 12px;font-weight:800;box-shadow:var(--shadow)}
.catalog-sort-button>span:first-child{font-size:21px;line-height:1;color:var(--blue)}
.sort-options{display:grid;gap:9px;margin:4px 0 10px}
.sort-option{display:flex;align-items:center;gap:11px;min-height:52px;padding:12px;border:1px solid var(--line);border-radius:13px;background:#fbfdff;color:var(--ink);font-weight:700}
.sort-option:has(input:checked){border-color:var(--blue);background:#eef7ff}
.sort-option input{width:18px;height:18px;accent-color:var(--blue)}
.catalog-sort-caption{color:var(--muted);font-size:12px;font-weight:700}
.filter-modal-backdrop{position:fixed;inset:0;z-index:25;display:flex;align-items:flex-end;justify-content:center;background:#071a2dcc;padding:18px}
.filter-modal{width:min(620px,100%);max-height:min(88vh,760px);overflow:auto;background:#fff;border-radius:22px;padding:20px;box-shadow:0 20px 70px #06152555}
.filter-modal-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:18px}
.filter-modal-header h2{margin:0;color:var(--ink);font-size:20px}
.filter-modal-header p{margin:5px 0 0;color:var(--muted);font-size:13px}
.filter-modal-header>button{width:36px;height:36px;border:1px solid var(--line);border-radius:50%;background:white;color:var(--muted);font-size:25px;line-height:1}
.filter-sort-field{display:grid;gap:7px;margin:0 0 20px;color:var(--muted);font-size:12px;font-weight:750}
.filter-sort-field select{width:100%;height:46px;border:1px solid var(--line);border-radius:12px;background:#fafdff;color:var(--ink);padding:0 12px;font-weight:700}
.filter-section-title{margin:0 0 11px;color:var(--ink);font-size:15px}
.filter-modal .filter-grid{max-height:45vh;overflow:auto;padding:1px 2px 5px}
.filter-modal-actions{position:sticky;bottom:-20px;display:flex;justify-content:space-between;align-items:center;gap:12px;margin:14px -20px -20px;padding:14px 20px calc(14px + env(safe-area-inset-bottom));background:#fffffff5;border-top:1px solid var(--line)}
@media(max-width:560px){.filter-modal-backdrop{padding:0}.filter-modal{max-height:90vh;border-radius:22px 22px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom))}.filter-modal .filter-grid{max-height:38vh}.filter-modal-actions{bottom:-18px;margin:14px -16px -18px;padding-left:16px;padding-right:16px}.filter-modal-actions .primary-button{padding:12px 14px}}
.subtype-chips{margin:3px 0 10px;padding-top:0}.related-products{margin:24px 0}.related-products .section-heading h2{font-size:20px}
.product-description,.product-features{margin:18px 0;padding:18px 20px;border:1px solid #dce9f6;border-radius:20px;background:linear-gradient(135deg,#f3f8fe,#fff);color:var(--ink)}.product-description h2,.product-features h2{margin:0 0 12px;font-size:20px}.product-description p{margin:0;line-height:1.5}.product-features ul{display:grid;gap:10px;margin:0;padding-left:20px;line-height:1.45}.product-features li::marker{color:var(--blue)}
.product-information{margin:22px 0;border:1px solid #d5e5f5;border-radius:22px;background:#fff;overflow:hidden;box-shadow:0 8px 22px rgba(30,74,112,.06)}.product-information>summary{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:68px;padding:16px 20px;cursor:pointer;list-style:none;color:var(--blue);font-size:19px;font-weight:800}.product-information>summary::-webkit-details-marker{display:none}.product-information>summary::after{content:'＋';flex:none;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:#edf6ff;color:var(--blue);font-size:23px}.product-information[open]>summary::after{content:'−'}.product-information .details-hint{margin-left:auto;color:#70869c;font-size:14px;font-weight:600}.product-information-content{padding:0 18px 8px}.product-information-content .product-description,.product-information-content .product-features{margin:8px 0 16px;box-shadow:none}@media(max-width:600px){.product-information>summary{align-items:flex-start;flex-wrap:wrap;font-size:17px}.product-information .details-hint{order:3;width:100%;margin:0}.product-information>summary::after{margin-left:auto}}