.product-head{background-image:var(--grid-light);border-bottom:1px solid var(--line);background-size:24px 24px;padding:8px 0 28px}.product-head h1{font-size:var(--h1);max-width:24ch;margin-top:12px}.product-head .lead{max-width:62ch;margin-top:12px}.product-head__meta{font-size:var(--fs-sm);color:var(--muted);flex-wrap:wrap;gap:4px 16px;margin-top:12px;display:flex}.product-layout{padding-top:28px;padding-bottom:var(--section-y);grid-template-columns:minmax(0,1fr);gap:32px;display:grid}@media (width>=1024px){.product-layout{grid-template-columns:minmax(0,1fr) 360px;align-items:start;gap:48px}.product-layout__aside{top:calc(var(--header-h) + 24px);grid-area:1/2/span 2;position:sticky}}.product-gallery img{border-radius:var(--r-md);border:1px solid var(--line);width:100%;height:auto}.product-gallery .product__media{border-radius:var(--r-md);aspect-ratio:16/9}.product-gallery .product__cover-title{font-size:1.5rem}@media (width>=768px){.product-gallery .product__media{aspect-ratio:2;padding:28px}.product-gallery .product__cover-title{font-size:2rem}}.buy-box{border:2px solid var(--navy-700);border-radius:var(--r-md);box-shadow:var(--sh-block);background:#fff;gap:16px;padding:22px;display:grid}.buy-box .price{margin:0}.buy-box .price__now{font-size:2rem}.buy-box__secure{font-size:var(--fs-xs);color:var(--muted);justify-content:center;align-items:center;gap:6px;display:flex}.buy-box__secure .icon{width:16px;height:16px}.spec{border-top:1px dashed var(--line);font-size:var(--fs-sm);grid-template-columns:auto minmax(0,1fr);margin:0;display:grid}.spec dt,.spec dd{border-bottom:1px dashed var(--line);padding:8px 0}.spec dt{color:var(--muted);padding-right:16px}.spec dd{color:var(--navy-900);text-align:right;margin:0;font-weight:700}.anchor-nav{top:var(--header-h);z-index:5;margin:0 calc(var(--gutter) * -1);padding:0 var(--gutter);border-bottom:1px solid var(--line);background:#fff;position:sticky}.anchor-nav ul{scrollbar-width:none;gap:4px;list-style:none;display:flex;overflow-x:auto}.anchor-nav a{min-height:48px;color:var(--ink-2);font-weight:700;font-size:var(--fs-sm);white-space:nowrap;border-bottom:2px solid #0000;align-items:center;padding:0 12px;text-decoration:none;display:flex}.anchor-nav a:hover{color:var(--navy-700);border-bottom-color:var(--orange-500)}@media (width>=1024px){.anchor-nav{margin:0;padding:0}}.product-section{padding-top:36px}.product-section>h2{font-size:var(--h2);margin-bottom:16px}.product-section h3{font-size:var(--h3)}.features{grid-template-columns:minmax(0,1fr);gap:12px;display:grid}@media (width>=768px){.features{grid-template-columns:repeat(2,minmax(0,1fr))}}.feature{border:1px solid var(--line);border-radius:var(--r-md);background:#fff;align-items:flex-start;gap:12px;padding:16px;display:flex}.feature__icon{border-radius:var(--r-sm);background:var(--navy-50);width:40px;height:40px;color:var(--navy-700);flex:none;place-items:center;display:grid}.feature p{color:var(--navy-900);font-weight:700;line-height:1.45}.checklist--x .icon{color:var(--bad)}.post-mini{border-bottom:1px solid var(--line-2);min-height:64px;color:var(--ink);align-items:center;gap:14px;padding:10px 0;text-decoration:none;display:flex}.post-mini img,.post-mini__ph{border-radius:var(--r-sm);object-fit:cover;background:var(--navy-800);background-image:var(--grid-dark);background-size:8px 8px,8px 8px,40px 40px,40px 40px;flex:none;width:88px;height:66px}.post-mini__title{color:var(--navy-900);font-weight:700;line-height:1.4;display:block}.post-mini:hover .post-mini__title{color:var(--navy-600);text-decoration:underline}.post-mini__meta{font-size:var(--fs-xs);color:var(--muted);margin-top:4px;display:block}