.intro-lead[data-astro-cid-mkhhvwrv]{font-size:clamp(1.05rem,1.6vw,1.2rem);line-height:1.75;color:var(--flow-navy);font-weight:500;margin-top:var(--space-4);margin-bottom:var(--space-5)}.intro-body[data-astro-cid-mkhhvwrv]{font-size:1rem;line-height:1.8;color:var(--flow-steel);margin-bottom:var(--space-4)}.section-header[data-astro-cid-mkhhvwrv]{margin-bottom:var(--space-12)}.section-header[data-astro-cid-mkhhvwrv] h2[data-astro-cid-mkhhvwrv]{font-size:clamp(2rem,4vw,3.2rem);margin-block:var(--space-3) var(--space-4);letter-spacing:-.04em}.section-intro[data-astro-cid-mkhhvwrv]{font-size:clamp(1rem,1.4vw,1.1rem);color:var(--flow-steel);line-height:1.75;max-width:56ch;margin-top:var(--space-3)}.heating-areas-grid[data-astro-cid-mkhhvwrv]{gap:var(--space-6)}.heating-area-card[data-astro-cid-mkhhvwrv]{background:var(--flow-white);border:1px solid var(--flow-line);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-sm)}.area-card-inner[data-astro-cid-mkhhvwrv]{padding:var(--space-8)}.area-icon[data-astro-cid-mkhhvwrv]{width:3rem;height:3rem;display:flex;align-items:center;justify-content:center;background:#0e91df1a;border-radius:var(--radius-lg);color:var(--flow-blue);margin-bottom:var(--space-5)}.heating-area-card[data-astro-cid-mkhhvwrv] h3[data-astro-cid-mkhhvwrv]{font-size:clamp(1.1rem,1.8vw,1.25rem);color:var(--flow-navy);margin-bottom:var(--space-3);letter-spacing:-.03em}.heating-area-card[data-astro-cid-mkhhvwrv] p[data-astro-cid-mkhhvwrv]{font-size:var(--text-sm);color:var(--flow-steel);line-height:1.7;margin-bottom:var(--space-5)}.area-list[data-astro-cid-mkhhvwrv]{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:var(--space-2)}.area-list[data-astro-cid-mkhhvwrv] li[data-astro-cid-mkhhvwrv]{font-size:var(--text-sm);color:var(--flow-navy);font-weight:500;padding-left:var(--space-5);position:relative}.area-list[data-astro-cid-mkhhvwrv] li[data-astro-cid-mkhhvwrv]:before{content:"";position:absolute;left:0;top:.45em;width:6px;height:6px;border-radius:50%;background:var(--flow-water)}.considerations-layout[data-astro-cid-mkhhvwrv]{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-16);align-items:start}.considerations-text[data-astro-cid-mkhhvwrv] h2[data-astro-cid-mkhhvwrv]{font-size:clamp(2rem,4vw,3rem);letter-spacing:-.04em;margin-block:var(--space-4) var(--space-6)}.considerations-text[data-astro-cid-mkhhvwrv] p[data-astro-cid-mkhhvwrv]{font-size:1rem;line-height:1.8;color:var(--flow-steel);margin-bottom:var(--space-5)}.checklist-card[data-astro-cid-mkhhvwrv]{background:var(--flow-white);border:1px solid var(--flow-line);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-card)}.checklist-card[data-astro-cid-mkhhvwrv] h3[data-astro-cid-mkhhvwrv]{font-size:1.1rem;color:var(--flow-navy);padding:var(--space-6) var(--space-8) 0;margin-bottom:var(--space-5);letter-spacing:-.03em}.checklist[data-astro-cid-mkhhvwrv]{list-style:none;padding:0 var(--space-8) var(--space-8);margin:0;display:flex;flex-direction:column;gap:var(--space-3)}.checklist-item[data-astro-cid-mkhhvwrv]{display:flex;align-items:center;gap:var(--space-3);font-size:var(--text-sm);color:var(--flow-navy);font-weight:500}.checklist-item[data-astro-cid-mkhhvwrv] svg[data-astro-cid-mkhhvwrv]{color:var(--flow-blue);flex-shrink:0}.gas-notice[data-astro-cid-mkhhvwrv]{display:flex;align-items:flex-start;gap:var(--space-6);padding:var(--space-8) var(--space-10);background:#ffc1070a;border:1.5px solid rgba(245,158,11,.3);border-left:4px solid rgba(245,158,11,.7);border-radius:0 var(--radius-xl) var(--radius-xl) 0}.gas-notice-icon[data-astro-cid-mkhhvwrv]{flex-shrink:0;width:3rem;height:3rem;display:flex;align-items:center;justify-content:center;background:#f59e0b1a;border-radius:var(--radius-lg);color:#b47814;margin-top:.1rem}.gas-notice-heading[data-astro-cid-mkhhvwrv]{font-size:clamp(1.2rem,2.2vw,1.5rem);color:var(--flow-navy);margin-bottom:var(--space-4);letter-spacing:-.03em}.gas-notice-content[data-astro-cid-mkhhvwrv] p[data-astro-cid-mkhhvwrv]{font-size:var(--text-sm);color:var(--flow-steel);line-height:1.75;margin-bottom:var(--space-3)}.gas-notice-content[data-astro-cid-mkhhvwrv] p[data-astro-cid-mkhhvwrv]:last-child{margin-bottom:0}@media(max-width:1023px){.considerations-layout[data-astro-cid-mkhhvwrv]{grid-template-columns:1fr;gap:var(--space-10)}.grid--3[data-astro-cid-mkhhvwrv].heating-areas-grid{grid-template-columns:1fr}.gas-notice[data-astro-cid-mkhhvwrv]{flex-direction:column;gap:var(--space-4)}}.heating-image-pair[data-astro-cid-mkhhvwrv]{display:grid;grid-template-columns:1fr 1fr;gap:3px;height:22rem;overflow:hidden}.heat-img-cell[data-astro-cid-mkhhvwrv]{overflow:hidden}.heat-img-cell[data-astro-cid-mkhhvwrv] picture[data-astro-cid-mkhhvwrv]{display:block;width:100%;height:100%}.heat-img-cell[data-astro-cid-mkhhvwrv] picture[data-astro-cid-mkhhvwrv] img[data-astro-cid-mkhhvwrv]{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}.heat-img-cell[data-astro-cid-mkhhvwrv]:hover picture[data-astro-cid-mkhhvwrv] img[data-astro-cid-mkhhvwrv]{transform:scale(1.04)}@media(max-width:639px){.heating-image-pair[data-astro-cid-mkhhvwrv]{grid-template-columns:1fr;height:14rem}}