.product-introduction {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 48px;margin-top:40px;padding-top:32px;border-top:1px solid #dce1e7}
.product-introduction h3 {font-size:20px;line-height:1.4;margin:0 0 12px}
.product-introduction p {font-size:16px;line-height:1.8;margin:0;color:#586575;overflow-wrap:anywhere}
.product-introduction .product-introduction-note {grid-column:1/-1;font-size:13px;color:#6b7280}
.detail-copy .product-overview-heading{font-size:18px;line-height:1.4;margin:24px 0 10px}
.product-applications{grid-column:1/-1}
.application-use-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.application-use-card{padding:26px;border:1px solid #e1e6ec;border-radius:18px;background:#f7f9fb}
.application-use-card h4{margin:0 0 12px;font-size:18px;line-height:1.4;color:#152638}
@media(max-width:640px){.application-use-grid{grid-template-columns:1fr}.application-use-card{padding:22px}}
@media(max-width:640px){.product-introduction{grid-template-columns:1fr;gap:24px;margin-top:28px;padding-top:24px}}