.furnace-page[data-astro-cid-yehcelue]{background:var(--paper)}.furnace-hero[data-astro-cid-yehcelue]{background:linear-gradient(120deg,#14243ffa,#14243fc7);color:var(--white)}.furnace-hero[data-astro-cid-yehcelue] h1[data-astro-cid-yehcelue]{max-width:760px;color:var(--white)!important}.furnace-hero[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue]{max-width:720px;color:#ffffffd1}.furnace-hero[data-astro-cid-yehcelue] .longform-kicker[data-astro-cid-yehcelue]{color:var(--heat-soft)}.furnace-answer-card[data-astro-cid-yehcelue] h2[data-astro-cid-yehcelue]{margin:12px 0;color:var(--ink);font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.02;text-transform:none}.furnace-answer-card[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue]{color:var(--muted)!important}.furnace-overview[data-astro-cid-yehcelue]{background:var(--blue-soft)}.furnace-overview-grid[data-astro-cid-yehcelue],.furnace-symptom-grid[data-astro-cid-yehcelue],.furnace-diagnostic-grid[data-astro-cid-yehcelue],.furnace-comparison-grid[data-astro-cid-yehcelue]{display:grid;gap:16px}.furnace-overview-grid[data-astro-cid-yehcelue]{grid-template-columns:repeat(3,minmax(0,1fr))}.furnace-overview-card[data-astro-cid-yehcelue],.furnace-symptom-card[data-astro-cid-yehcelue],.furnace-comparison-card[data-astro-cid-yehcelue]{min-width:0;padding:26px;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:var(--shadow)}.furnace-overview-card[data-astro-cid-yehcelue]>span[data-astro-cid-yehcelue],.furnace-symptom-card[data-astro-cid-yehcelue]>span[data-astro-cid-yehcelue],.furnace-comparison-card[data-astro-cid-yehcelue]>span[data-astro-cid-yehcelue]{color:var(--heat);font-size:.76rem;font-weight:900;letter-spacing:.1em;text-transform:uppercase}.furnace-overview-card[data-astro-cid-yehcelue] h3[data-astro-cid-yehcelue],.furnace-symptom-card[data-astro-cid-yehcelue] h3[data-astro-cid-yehcelue],.furnace-comparison-card[data-astro-cid-yehcelue] h3[data-astro-cid-yehcelue]{margin:12px 0 10px;color:var(--ink);font-size:1.32rem;line-height:1.08;text-transform:none}.furnace-overview-card[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue],.furnace-symptom-card[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue],.furnace-comparison-card[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue]{margin:0;color:var(--muted);line-height:1.65}.furnace-content[data-astro-cid-yehcelue]{background:var(--paper)}.furnace-content[data-astro-cid-yehcelue] .longform-copy-section[data-astro-cid-yehcelue]+.longform-copy-section[data-astro-cid-yehcelue]{margin-top:56px}.furnace-symptom-grid[data-astro-cid-yehcelue]{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:26px}.furnace-symptom-card[data-astro-cid-yehcelue]{min-height:220px}.furnace-side-card[data-astro-cid-yehcelue]{position:sticky;top:24px}.side-label[data-astro-cid-yehcelue]{display:block;margin-bottom:12px;color:var(--heat);font-size:.76rem;font-weight:900;letter-spacing:.1em;text-transform:uppercase}.furnace-side-card[data-astro-cid-yehcelue] h2[data-astro-cid-yehcelue]{color:var(--ink);font-size:1.7rem;line-height:1.08;text-transform:none}.furnace-side-card[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue]{color:var(--muted);line-height:1.65}.furnace-diagnosis-band[data-astro-cid-yehcelue]{padding:clamp(64px,9vw,112px) 0;background:var(--night);color:var(--white)}.furnace-section-head-light[data-astro-cid-yehcelue]{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.62fr);gap:clamp(28px,7vw,96px);align-items:end;margin-bottom:32px}.furnace-section-head-light[data-astro-cid-yehcelue] h2[data-astro-cid-yehcelue]{max-width:720px;margin:0;color:var(--white);font-size:clamp(2.2rem,5vw,4.7rem);line-height:1;text-transform:none}.furnace-section-head-light[data-astro-cid-yehcelue] .longform-kicker[data-astro-cid-yehcelue]{color:var(--heat-soft)}.furnace-section-head-light[data-astro-cid-yehcelue]>p[data-astro-cid-yehcelue]{margin:0;color:#ffffffc2;font-size:1.05rem;line-height:1.65}.furnace-diagnostic-grid[data-astro-cid-yehcelue]{grid-template-columns:repeat(4,minmax(0,1fr))}.furnace-diagnostic-card[data-astro-cid-yehcelue]{min-width:0;min-height:250px;padding:24px;border:1px solid rgba(255,255,255,.14);border-radius:12px;background:#ffffff0f}.furnace-diagnostic-card[data-astro-cid-yehcelue]>span[data-astro-cid-yehcelue]{display:block;margin-bottom:30px;color:var(--heat-soft);font-size:1.5rem;font-weight:900}.furnace-diagnostic-card[data-astro-cid-yehcelue] h3[data-astro-cid-yehcelue]{margin:0 0 10px;color:var(--white);font-size:1.25rem;line-height:1.08;text-transform:none}.furnace-diagnostic-card[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue]{margin:0;color:#ffffffbd;line-height:1.62}.furnace-warning-strip[data-astro-cid-yehcelue]{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:28px;margin-top:20px;padding:24px;border:1px solid var(--heat);background:#ffffff1a}.furnace-warning-strip[data-astro-cid-yehcelue] strong[data-astro-cid-yehcelue]{color:var(--white)}.furnace-warning-strip[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue]{margin:0;color:#ffffffc2;line-height:1.62}.furnace-before-call[data-astro-cid-yehcelue]{background:var(--blue-soft)}.furnace-split-grid[data-astro-cid-yehcelue],.furnace-urgent-grid[data-astro-cid-yehcelue],.furnace-close-grid[data-astro-cid-yehcelue]{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.72fr);gap:clamp(28px,7vw,96px);align-items:start}.furnace-split-grid[data-astro-cid-yehcelue] h2[data-astro-cid-yehcelue],.furnace-urgent-grid[data-astro-cid-yehcelue] h2[data-astro-cid-yehcelue],.furnace-close-grid[data-astro-cid-yehcelue] h2[data-astro-cid-yehcelue]{margin:0;color:var(--ink);font-size:clamp(2.1rem,4.5vw,4.2rem);line-height:1.02;text-transform:none}.furnace-split-grid[data-astro-cid-yehcelue]>div[data-astro-cid-yehcelue]>p[data-astro-cid-yehcelue]{color:var(--muted);line-height:1.72}.furnace-do-not[data-astro-cid-yehcelue]{padding:28px;border:1px solid rgba(246,75,27,.3);border-radius:14px;background:var(--orange-soft);box-shadow:var(--shadow)}.furnace-do-not[data-astro-cid-yehcelue]>span[data-astro-cid-yehcelue]{color:var(--heat);font-size:.76rem;font-weight:900;letter-spacing:.1em;text-transform:uppercase}.furnace-do-not[data-astro-cid-yehcelue] h3[data-astro-cid-yehcelue]{margin:12px 0 18px;color:var(--ink);font-size:1.5rem;line-height:1.12;text-transform:none}.furnace-do-not[data-astro-cid-yehcelue] ul[data-astro-cid-yehcelue]{display:grid;gap:10px;margin:0;padding-left:20px;color:var(--muted)}.furnace-do-not[data-astro-cid-yehcelue] li[data-astro-cid-yehcelue]::marker{color:var(--heat)}.furnace-comparison[data-astro-cid-yehcelue]{background:var(--paper)}.furnace-comparison-grid[data-astro-cid-yehcelue]{grid-template-columns:repeat(3,minmax(0,1fr))}.furnace-comparison-card[data-astro-cid-yehcelue]{min-height:240px}.furnace-urgent-band[data-astro-cid-yehcelue]{padding:clamp(64px,9vw,112px) 0;background:var(--orange-soft)}.furnace-urgent-grid[data-astro-cid-yehcelue]>div[data-astro-cid-yehcelue]>.longform-kicker[data-astro-cid-yehcelue]{color:var(--heat)}.furnace-urgent-grid[data-astro-cid-yehcelue]>div[data-astro-cid-yehcelue]>p[data-astro-cid-yehcelue],.furnace-urgent-grid[data-astro-cid-yehcelue] aside[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue]{color:var(--muted);line-height:1.7}.furnace-urgent-grid[data-astro-cid-yehcelue] aside[data-astro-cid-yehcelue]{padding:28px;border:1px solid var(--heat);background:#ffffff8f}.furnace-urgent-grid[data-astro-cid-yehcelue] aside[data-astro-cid-yehcelue] strong[data-astro-cid-yehcelue]{color:var(--ink)}.furnace-urgent-grid[data-astro-cid-yehcelue] aside[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue]{margin-bottom:0}.furnace-faq[data-astro-cid-yehcelue]{background:var(--night)}.furnace-faq[data-astro-cid-yehcelue] .longform-section-head[data-astro-cid-yehcelue] h2[data-astro-cid-yehcelue]{color:var(--white)}.furnace-faq[data-astro-cid-yehcelue] .longform-kicker[data-astro-cid-yehcelue]{color:var(--heat-soft)}.furnace-faq[data-astro-cid-yehcelue] .longform-faq-grid[data-astro-cid-yehcelue] article[data-astro-cid-yehcelue]{background:#ffffff0f;border-color:#ffffff24}.furnace-faq[data-astro-cid-yehcelue] .longform-faq-grid[data-astro-cid-yehcelue] h3[data-astro-cid-yehcelue]{color:var(--white)}.furnace-faq[data-astro-cid-yehcelue] .longform-faq-grid[data-astro-cid-yehcelue] p[data-astro-cid-yehcelue]{color:#ffffffc2}.furnace-close-band[data-astro-cid-yehcelue]{padding:clamp(56px,8vw,96px) 0;background:var(--paper)}.furnace-close-grid[data-astro-cid-yehcelue]>p[data-astro-cid-yehcelue]{margin:0;color:var(--muted);font-size:1.08rem;line-height:1.72}@media (max-width: 980px){.furnace-overview-grid[data-astro-cid-yehcelue],.furnace-diagnostic-grid[data-astro-cid-yehcelue],.furnace-comparison-grid[data-astro-cid-yehcelue]{grid-template-columns:repeat(2,minmax(0,1fr))}.furnace-section-head-light[data-astro-cid-yehcelue],.furnace-split-grid[data-astro-cid-yehcelue],.furnace-urgent-grid[data-astro-cid-yehcelue],.furnace-close-grid[data-astro-cid-yehcelue]{grid-template-columns:1fr}.furnace-side-card[data-astro-cid-yehcelue]{position:static}}@media (max-width: 640px){.furnace-overview-grid[data-astro-cid-yehcelue],.furnace-symptom-grid[data-astro-cid-yehcelue],.furnace-diagnostic-grid[data-astro-cid-yehcelue],.furnace-comparison-grid[data-astro-cid-yehcelue]{grid-template-columns:1fr}.furnace-warning-strip[data-astro-cid-yehcelue]{grid-template-columns:1fr;gap:12px}.furnace-overview-card[data-astro-cid-yehcelue],.furnace-symptom-card[data-astro-cid-yehcelue],.furnace-comparison-card[data-astro-cid-yehcelue],.furnace-diagnostic-card[data-astro-cid-yehcelue]{min-height:auto}}