.commerce-main{padding-top:104px;padding-bottom:calc(var(--site-footer-height) + 36px)}body[data-page=article-detail],body[data-page=mall],body[data-page=paid-reading],body[data-page=product-detail]{--mall-topbar-height:64px}body[data-page=article-detail] .commerce-main,body[data-page=mall] .commerce-main,body[data-page=paid-reading] .commerce-main,body[data-page=product-detail] .commerce-main{padding-top:calc(var(--mall-topbar-height) + 18px);padding-bottom:calc(var(--site-footer-height) + 126px)}body[data-page=paid-reading] .commerce-main{padding-top:var(--mall-topbar-height)}body[data-page=article-detail] .reveal,body[data-page=mall] .reveal,body[data-page=paid-reading] .reveal,body[data-page=product-detail] .reveal{opacity:1;transform:none}.mall-topbar{position:fixed;inset:0 0 auto;z-index:90;min-height:var(--mall-topbar-height);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px max(18px,calc((100vw - 1640px)/ 2 + 18px));border-bottom:1px solid var(--line);background:rgba(16,17,15,.94);box-shadow:0 14px 34px rgba(0,0,0,.18)}.mall-topbar-title{min-width:0;display:inline-flex;align-items:center;gap:12px}.mall-topbar-logo{flex:0 0 auto;width:clamp(82px,7.5vw,98px);height:auto;padding:3px 5px;border:1px solid rgba(255,254,250,.2);border-radius:var(--radius-sm);background:rgba(255,254,250,.94)}.mall-topbar-copy{min-width:0;display:grid;gap:1px}.mall-topbar-kicker{color:var(--accent-strong);font-family:var(--mono);font-size:11px;font-weight:650;letter-spacing:0;line-height:1.1;text-transform:none}.mall-topbar-title h1,.mall-topbar-title strong{margin:0;color:var(--white);font-family:var(--body);font-size:clamp(17px, 1.5vw, 21px);font-weight:650;letter-spacing:0;line-height:1.15;overflow-wrap:anywhere}.mall-home-button{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);color:var(--white);background:rgba(255,255,255,.06);transition:transform .18s,border-color .18s,background .18s}.mall-home-button svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.mall-home-button:focus-visible,.mall-home-button:hover{border-color:rgba(47,111,159,.58);background:rgba(47,111,159,.16);transform:translateY(-1px)}.commerce-hero{width:min(var(--max),calc(100% - 36px));margin:0 auto 28px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,0.95fr);gap:22px;align-items:stretch}.article-list,.cart-panel,.checkout-modal,.commerce-card,.commerce-detail,.commerce-hero-copy,.commerce-hero-panel,.commerce-toolbar,.purchase-modal,.reader-panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow-soft)}.cart-panel,.commerce-card,.commerce-detail,.commerce-hero-copy,.commerce-hero-panel,.commerce-metric,.commerce-shell,.commerce-toolbar{min-width:0}.commerce-hero-copy{min-height:360px;padding:clamp(26px,4vw,48px);display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}.commerce-hero-copy h1{max-width:840px;overflow-wrap:anywhere}.commerce-hero-copy h1 span{display:block}.commerce-hero-panel{position:relative;min-height:360px;padding:24px;overflow:hidden}.commerce-hero-panel::before{display:none}.commerce-metrics{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.commerce-metric{min-height:118px;padding:16px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface-soft)}.commerce-metric strong{display:block;font-size:26px;line-height:1}.commerce-metric span{display:block;margin-top:10px;color:var(--muted);font-size:13px;overflow-wrap:anywhere}.mall-storefront{position:sticky;top:var(--mall-topbar-height);z-index:80;width:min(1640px,calc(100% - 36px));margin:0 auto 20px;display:grid;gap:10px;padding:12px 18px 14px;border:1px solid var(--line);border-top-color:rgba(226,219,204,.1);border-radius:0 0 var(--radius) var(--radius);background:linear-gradient(180deg,rgba(24,26,23,.98),rgba(22,24,21,.94));box-shadow:0 18px 44px rgba(0,0,0,.32);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}.commerce-toolbar{width:min(1480px,calc(100% - 36px));margin:0 auto 18px;padding:16px;display:grid;grid-template-columns:minmax(220px,1fr) auto auto;gap:12px;align-items:center}.mall-storefront .commerce-toolbar{width:100%;margin:0;padding:0;border:0;border-radius:0;background:0 0;box-shadow:none;grid-template-columns:minmax(240px,1fr) minmax(154px,190px)}.commerce-search{position:relative}.commerce-search input,.commerce-select{width:100%;min-height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface-soft);color:var(--white);padding:0 14px;outline:0}.commerce-search input:focus,.commerce-select:focus{border-color:rgba(47,111,159,.58);box-shadow:0 0 0 3px rgba(47,111,159,.16)}.commerce-select option{background:var(--surface-solid);color:var(--white)}.commerce-chips{width:min(1480px,calc(100% - 36px));margin:0 auto 18px;display:flex;gap:8px;overflow-x:auto;padding-bottom:4px}.mall-storefront .commerce-chips{width:100%;margin:0;padding-bottom:0}.mall-storefront .commerce-chips .chip{border-radius:3px}.knowledge-storefront{position:sticky;top:var(--mall-topbar-height);z-index:86;width:100%;margin:0 0 24px;gap:12px;padding:12px max(18px,calc((100vw - 1640px)/ 2 + 18px)) 14px;border-width:0 0 1px;border-radius:0;background:rgba(16,17,15,.97);box-shadow:0 16px 34px rgba(0,0,0,.28)}.knowledge-storefront .knowledge-toolbar{grid-template-columns:minmax(240px,1fr)}.knowledge-storefront .commerce-search input{min-height:50px}.knowledge-feed{width:min(1640px,calc(100% - 36px));margin:0 auto 72px;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));grid-auto-rows:auto;grid-auto-flow:dense;gap:16px;align-items:stretch}.knowledge-card{width:100%;min-width:0;min-height:100%;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow-soft);overflow:hidden;transition:transform .2s,border-color .2s,background .2s}.knowledge-card:focus-within,.knowledge-card:hover{transform:translateY(-2px);border-color:rgba(47,111,159,.48);background:var(--surface-solid)}.knowledge-card.is-paid{border-color:rgba(191,139,69,.28)}.knowledge-card.is-free{border-color:rgba(79,138,101,.28)}.knowledge-card.is-owned{border-color:rgba(47,111,159,.58)}.knowledge-card--span-4{grid-column:span 4}.knowledge-card--span-6{grid-column:span 6}.knowledge-card--span-12{grid-column:span 12}.knowledge-card-link{height:100%;width:100%;min-width:0;display:flex;flex-direction:column;color:inherit}.knowledge-card-media{position:relative;min-width:0;min-height:0;display:grid;place-items:center;height:clamp(150px,11vw,220px);padding:0;overflow:hidden;border-bottom:1px solid var(--line);background:linear-gradient(135deg,rgba(47,111,159,.14),transparent 42%),#11120f}.knowledge-card-media img{position:absolute;inset:10px;width:calc(100% - 20px);height:calc(100% - 20px);max-width:none;max-height:none;display:block;align-self:stretch;justify-self:stretch;object-fit:contain;object-position:center;transition:transform .28s}.knowledge-card:focus-within .knowledge-card-media img,.knowledge-card:hover .knowledge-card-media img{transform:scale(1.025)}.knowledge-card-copy{flex:1 1 auto;min-width:0;width:100%;min-height:228px;display:flex;flex-direction:column;gap:10px;padding:16px;overflow:hidden}.knowledge-card-kicker,.knowledge-card-meta{min-width:0;display:flex;align-items:center;justify-content:space-between;gap:8px;color:var(--muted);font-family:var(--mono);font-size:11px;font-weight:650;font-variant-numeric:tabular-nums}.knowledge-card-kicker strong{color:var(--white);white-space:nowrap}.knowledge-card.is-free .knowledge-card-kicker strong{color:#dce9dc}.knowledge-card.is-paid .knowledge-card-kicker strong{color:#f0c98b}.knowledge-card h3{display:block;min-width:0;min-height:0;width:100%;max-width:100%;margin:0;color:var(--white);font-size:clamp(20px, 1.65vw, 28px);line-height:1.24;white-space:normal;overflow:visible;overflow-wrap:anywhere;word-break:break-word;-webkit-line-clamp:unset;-webkit-box-orient:initial}.knowledge-card-summary{min-width:0;max-width:100%;color:var(--ink-soft);font-size:14px;line-height:1.55;display:-webkit-box;overflow:hidden;overflow-wrap:anywhere;word-break:break-word;-webkit-line-clamp:3;-webkit-box-orient:vertical}.knowledge-card-meta{margin-top:auto;justify-content:flex-start;flex-wrap:wrap}.knowledge-card--feature .knowledge-card-link{display:flex}.knowledge-card--feature .knowledge-card-media,.knowledge-card--wide .knowledge-card-media{height:clamp(176px,14vw,270px);border-bottom:1px solid var(--line)}.knowledge-card--feature .knowledge-card-copy{padding:clamp(18px,2.4vw,28px)}.knowledge-card--feature h3{font-size:clamp(26px, 2.25vw, 36px);line-height:1.18}.knowledge-card--feature .knowledge-card-summary{font-size:15px}.knowledge-card--compact .knowledge-card-link{display:flex}.knowledge-card--compact .knowledge-card-media{border-right:0;border-bottom:1px solid var(--line)}.knowledge-card--compact .knowledge-card-copy{min-height:194px;gap:8px;padding:14px}.knowledge-card--compact h3{font-size:18px}.knowledge-card--compact .commerce-tags{display:none}.chip{display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:0 12px;border:1px solid var(--line);border-radius:999px;background:var(--surface-soft);color:var(--ink-soft);font-weight:650;font-size:13px;white-space:nowrap}.chip.is-active{color:var(--white);border-color:rgba(47,111,159,.58);background:rgba(47,111,159,.22)}.commerce-shell{width:min(1640px,calc(100% - 36px));margin:0 auto 72px;display:grid;grid-template-columns:minmax(0,1fr) minmax(318px,360px);gap:18px;align-items:start}.commerce-shell-list{grid-template-columns:1fr}.commerce-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:14px;align-items:stretch}.commerce-card{overflow:hidden;cursor:pointer;min-height:430px;display:flex;flex-direction:column;transition:transform .2s,border-color .2s,background .2s}.commerce-card:focus-within,.commerce-card:hover{transform:translateY(-2px);border-color:rgba(47,111,159,.45);background:var(--surface-solid)}.commerce-card.is-selected{border-color:rgba(251,191,36,.55)}.commerce-card-view{width:100%;border:0;background:0 0;color:inherit;padding:0;display:block;overflow:hidden}.commerce-card h3 a{color:inherit}.commerce-card-view:focus-visible{outline:rgba(47,111,159,.72) solid 2px;outline-offset:-2px}.product-image{width:100%;aspect-ratio:1.18/1;object-fit:cover;background:#11120f;border-bottom:1px solid var(--line);transition:transform .24s}.commerce-card:focus-within .product-image,.commerce-card:hover .product-image{transform:scale(1.025)}.article-cover{width:100%;aspect-ratio:1.62/1;object-fit:cover;background:#11120f;border-bottom:1px solid var(--line)}.commerce-card-body{flex:1;padding:13px;display:flex;flex-direction:column}.commerce-card-kicker{display:flex;justify-content:space-between;gap:6px;color:var(--muted);font-family:var(--mono);font-size:10.5px;font-weight:650;font-variant-numeric:tabular-nums}.commerce-card h3{min-height:46px;margin-top:8px;margin-bottom:0;font-size:17px;line-height:1.35;display:-webkit-box;overflow:hidden;-webkit-line-clamp:2;-webkit-box-orient:vertical}.commerce-card p{min-height:42px;margin-top:8px;color:var(--ink-soft);font-size:12.5px;line-height:1.42;display:-webkit-box;overflow:hidden;-webkit-line-clamp:2;-webkit-box-orient:vertical}.commerce-card-footer{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:10px}.commerce-price{color:var(--white);font-size:19px;font-weight:700;letter-spacing:0;font-variant-numeric:tabular-nums}.commerce-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:9px}.commerce-tag{display:inline-flex;align-items:center;min-height:20px;padding:0 6px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:10.5px;white-space:nowrap}.commerce-tag-self{border-color:rgba(240,201,139,.58);background:rgba(240,201,139,.12);color:#f0c98b;font-weight:650}.commerce-card .commerce-tags .commerce-tag:nth-child(n+3){display:none}.commerce-card-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:12px}.commerce-card-button{width:auto;min-width:0;min-height:40px;padding:0 10px;border-radius:var(--radius-sm);font-size:13px;white-space:nowrap}.commerce-card-button.button-ghost{border-color:var(--line-strong);background:var(--surface-soft)}.commerce-owned-note{margin-top:8px;color:#dce9dc;font-size:12px;font-weight:650}.commerce-detail .commerce-card-footer{margin-top:14px;padding-top:0}.commerce-detail .commerce-price{font-size:22px}.article-list,.cart-panel,.commerce-detail,.reader-panel{padding:18px}.sticky-panel{position:sticky;top:96px;display:grid;gap:16px}.product-detail-page{width:min(1240px,calc(100% - 36px));margin:0 auto 72px;display:grid;gap:18px}.product-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;color:var(--muted);font-size:13px;font-weight:650}.product-breadcrumb a{display:inline-flex;align-items:center;min-height:34px;padding:0 12px;border:1px solid rgba(47,111,159,.45);border-radius:999px;color:var(--white);background:rgba(47,111,159,.16)}.product-detail-layout,.product-detail-sections{display:grid;gap:18px}.product-detail-layout{grid-template-columns:minmax(0,0.98fr) minmax(340px,0.62fr);align-items:start}.product-gallery,.product-info-panel,.product-purchase-panel,.related-products{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow-soft)}.product-gallery{padding:18px}.product-detail-image{width:100%;aspect-ratio:1.36/1;object-fit:cover;border:1px solid var(--line);border-radius:var(--radius-sm);background:#11120f}.product-gallery .commerce-tags{margin-top:14px}.product-purchase-panel{position:sticky;top:96px;padding:clamp(22px,3vw,32px)}body[data-page=product-detail] .product-purchase-panel{top:calc(var(--mall-topbar-height) + 18px)}.product-purchase-panel h1{max-width:100%;margin-bottom:14px;font-size:clamp(30px, 3.2vw, 46px);overflow-wrap:anywhere}.product-detail-price{display:block;margin-top:22px;color:var(--white);font-size:34px;line-height:1;font-weight:720;font-variant-numeric:tabular-nums}.product-meta-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:18px}.product-meta-grid span{min-width:0;min-height:62px;display:grid;gap:4px;padding:10px;border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--muted);background:var(--surface-soft);font-size:11px}.product-meta-grid strong{color:var(--ink-soft);font-size:14px;line-height:1.25}.product-detail-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.product-detail-actions .button{width:100%}.product-detail-sections{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.product-info-panel,.related-products{padding:20px}.product-info-panel h2,.related-products h2{margin-bottom:14px;font-size:24px}.fulfillment-list{display:grid;gap:10px;margin-top:14px;color:var(--ink-soft);list-style:none}.fulfillment-list li{padding:12px 0;border-bottom:1px solid var(--line)}.related-products{display:grid;gap:14px}.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.related-card{display:grid;gap:10px;padding:10px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface-soft)}.related-card img{width:100%;aspect-ratio:1.22/1;object-fit:cover;border-radius:var(--radius-sm);background:#11120f}.related-card h3{margin:0;font-size:15px;line-height:1.35}.related-card span{color:var(--muted);font-size:12px;font-weight:650}.detail-hero{width:100%;aspect-ratio:1.62/1;object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--line);background:#11120f}.detail-title-row{display:flex;justify-content:space-between;gap:14px;margin-top:0}.detail-title-row h2{font-size:20px}.detail-summary{margin-top:12px;color:var(--ink-soft)}.spec-list{display:grid;gap:10px;margin:18px 0 0}.spec-row{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);color:var(--ink-soft)}.spec-row span:first-child{color:var(--muted)}.cart-panel{margin-top:0}.cart-dock{position:fixed;left:50%;bottom:calc(var(--site-footer-height) + 16px);z-index:120;width:min(760px,calc(100% - 32px));min-height:74px;display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;gap:14px;align-items:center;padding:12px 14px;border:1px solid rgba(47,111,159,.45);border-radius:var(--radius);background:#181a17;box-shadow:0 18px 42px rgba(0,0,0,.3);color:var(--white);cursor:pointer;transform:translateX(-50%);transition:transform .18s,border-color .18s,background .18s}.cart-dock.is-empty{display:none}.cart-dock:focus-visible,.cart-dock:hover{border-color:rgba(47,111,159,.68);background:#1d201c;transform:translateX(-50%) translateY(-2px)}.cart-dock:focus-visible{outline:rgba(47,111,159,.72) solid 2px;outline-offset:3px}.cart-dock-mark{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border:1px solid rgba(47,111,159,.48);border-radius:var(--radius-sm);background:rgba(47,111,159,.18);color:var(--ink-soft);font-size:11px;font-weight:650;text-transform:none}.cart-dock-copy{min-width:0;display:grid;gap:4px;text-align:left}.cart-dock-copy strong,.cart-dock-total strong{line-height:1}.cart-dock-copy small,.cart-dock-total small{color:var(--muted);font-size:12px}.cart-dock-copy small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cart-dock-total{display:grid;gap:5px;min-width:86px;text-align:right}.cart-dock-total strong{font-size:22px;font-variant-numeric:tabular-nums}.cart-dock-action{display:inline-flex;align-items:center;justify-content:center;min-width:62px;height:42px;border-radius:var(--radius-sm);background:var(--accent);color:var(--white);font-size:14px;font-weight:650}.cart-item{display:grid;grid-template-columns:54px minmax(0,1fr) auto;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}.cart-item-thumb{width:54px;aspect-ratio:1/1;object-fit:cover;border:1px solid var(--line);border-radius:var(--radius-sm);background:#11120f}.cart-item h4{margin:0;font-size:14px}.cart-item p{margin:4px 0 0;color:var(--muted);font-size:12px}.cart-qty{display:inline-grid;grid-template-columns:28px 36px 28px;align-items:center;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}.cart-qty button{width:28px;height:30px;border:0;background:var(--surface-soft);color:var(--white)}.cart-qty span{text-align:center;color:var(--ink-soft);font-size:13px}.cart-total{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;color:var(--ink-soft)}.cart-total strong{color:var(--white);font-size:24px;font-variant-numeric:tabular-nums}.modal-layer{position:fixed;inset:0;z-index:140;display:none;place-items:center;padding:20px;background:rgba(0,0,0,.56)}.modal-layer.is-open{display:grid}.cart-modal{width:min(640px,100%);max-height:min(720px,calc(100vh - 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