.breadcrumb{display:flex;gap:.55rem;align-items:center;color:var(--muted);font-size:.95rem;margin:1rem 0}.breadcrumb a{color:var(--blue);font-weight:800}.article-layout{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;align-items:start}.article-gallery,.article-info,.article-tabs{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.article-gallery{padding:1rem}.article-main-img{min-height:470px;border-radius:18px;background:linear-gradient(150deg,#e8f8ff,#fff 55%,#eaf4fb);display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:3rem;font-weight:950}.thumb-row{display:grid;grid-template-columns:repeat(3,1fr);gap:.6rem;margin-top:.7rem}.thumb-row button{border:1px solid var(--line);background:#fff;border-radius:14px;padding:.8rem;font-weight:850;color:var(--blue)}.article-info{padding:2rem}.article-info h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1.02;margin:.2rem 0;color:var(--blue);letter-spacing:-.04em}.lead{font-size:1.08rem;color:var(--muted)}.price-box{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin:1.3rem 0}.price-box div{background:#f4f9fd;border:1px solid var(--line);border-radius:18px;padding:1rem}.price-box span{display:block;color:var(--muted);font-size:.85rem}.price-box strong{font-size:1.45rem;color:var(--blue)}.buy-box{border:1px solid var(--line);border-radius:20px;padding:1rem;background:#fff}.buy-row{display:flex;gap:.7rem;margin:.4rem 0}.buy-row input{width:92px;border:1px solid var(--line);border-radius:999px;padding:.8rem 1rem}.stock-note{margin:.4rem 0 0;color:var(--muted);font-size:.9rem}.article-points{padding-left:1.2rem;color:var(--text)}.article-tabs{margin-top:1.5rem;padding:1rem}.tab-buttons{display:flex;gap:.5rem;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:.8rem}.tab-buttons button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:.7rem 1rem;font-weight:900;color:var(--blue)}.tab-buttons button.is-active{background:var(--blue);color:#fff}.tab-panel{display:none;padding:1rem .2rem}.tab-panel.is-active{display:block}.related-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.related-row a{background:#fff;border:1px solid var(--line);border-radius:18px;padding:1.2rem;font-weight:900;color:var(--blue)}@media (max-width:850px){.article-layout{grid-template-columns:1fr}.article-main-img{min-height:300px}.related-row{grid-template-columns:1fr}.buy-row{flex-direction:column}.buy-row input{width:100%}.price-box{grid-template-columns:1fr}}