.heater-hero{position:relative;background:radial-gradient(circle at 100% 0%,rgba(47,128,237,.12),transparent 50%),linear-gradient(135deg,#eff6ff 0%,#ffffff 100%);padding:clamp(3rem,8vw,5rem) 0 clamp(2.5rem,6vw,4rem);overflow:hidden}.heater-hero::before{content:"";position:absolute;top:0;inset-inline-start:-10%;width:50%;height:100%;background:radial-gradient(ellipse,rgba(19,102,214,.08),transparent 60%);pointer-events:none}.heater-hero .container{position:relative;z-index:1}.heater-hero__row{display:grid;grid-template-columns:1fr;gap:2.5rem;align-items:center}@media (min-width:992px){.heater-hero__row{grid-template-columns:1.1fr 1fr}}.heater-hero__badge{display:inline-flex;align-items:center;gap:.5rem;padding:.45rem 1rem;background:var(--brand-soft);color:var(--brand);border-radius:999px;font-size:.85rem;font-weight:600;margin-bottom:1rem}.heater-hero__title{font-size:clamp(1.75rem,4vw,2.65rem);font-weight:800;line-height:1.25;color:var(--text-strong);margin:0 0 1rem}.heater-hero__title span{display:block;font-size:.65em;color:var(--brand);font-weight:600;margin-top:.35rem}.heater-hero__desc{font-size:clamp(1rem,1.4vw,1.0625rem);color:var(--text-soft);line-height:1.9;margin:0 0 1.5rem}.heater-hero__desc strong{color:var(--text-strong)}.heater-hero__features{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.65rem;margin:1.25rem 0}.heater-hero__feature{display:flex;align-items:center;gap:.55rem;padding:.55rem .75rem;background:rgba(255,255,255,.7);backdrop-filter:blur(6px);border:1px solid var(--border-soft);border-radius:10px;color:var(--text-strong);font-weight:500;font-size:.9rem}.heater-hero__feature i{color:var(--brand);font-size:1rem}.heater-hero__cta{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}.heater-hero__visual{position:relative;display:flex;align-items:center;justify-content:center;min-height:320px}.heater-hero__icon-card{position:relative;width:clamp(220px,30vw,320px);aspect-ratio:1;background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);border-radius:28px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:clamp(5rem,12vw,8rem);box-shadow:0 24px 48px rgba(47,128,237,.35);transform:rotate(-3deg);transition:transform var(--transition-base)}.heater-hero__icon-card:hover{transform:rotate(0deg) scale(1.02)}.heater-hero__floating{position:absolute;background:#fff;border-radius:14px;padding:.85rem 1.1rem;display:flex;align-items:center;gap:.65rem;box-shadow:0 10px 30px rgba(15,23,42,.12);font-size:.9rem;font-weight:600;color:var(--text-strong)}.heater-hero__floating i{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;background:var(--brand-soft);color:var(--brand);border-radius:10px;font-size:1.05rem}.heater-hero__floating--top{top:8%;inset-inline-start:-5%;animation:hoverFloat 4s ease-in-out infinite}.heater-hero__floating--bottom{bottom:8%;inset-inline-end:-5%;animation:hoverFloat 4s ease-in-out infinite reverse}@keyframes hoverFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}@media (prefers-reduced-motion:reduce){.heater-hero__floating{animation:none}}.heater-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.25rem}.heater-card{background:var(--surface);border:1px solid var(--border-soft);border-radius:16px;padding:1.6rem 1.35rem;transition:transform var(--transition-fast),box-shadow var(--transition-fast),border-color var(--transition-fast)}.heater-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(15,23,42,.1);border-color:var(--brand)}.heater-card__icon{width:56px;height:56px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand-soft),rgba(47,128,237,.2));color:var(--brand);border-radius:14px;font-size:1.5rem;margin-bottom:1rem}.heater-card h3{font-size:1.05rem;font-weight:700;color:var(--text-strong);margin:0 0 .55rem}.heater-card p{color:var(--text-soft);font-size:.92rem;line-height:1.75;margin:0}.heater-card strong{color:var(--text-strong)}.issues-list{max-width:880px;margin:0 auto;padding:0;list-style:none;display:grid;gap:.85rem}.issues-list li{display:grid;grid-template-columns:48px 1fr;gap:1rem;padding:1.15rem 1.35rem;background:var(--surface);border:1px solid var(--border-soft);border-radius:12px;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.issues-list li:hover{border-color:var(--brand);box-shadow:0 10px 22px rgba(15,23,42,.06)}.issues-list li i{width:48px;height:48px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#fef2f2,#fee2e2);color:#dc2626;border-radius:12px;font-size:1.1rem;align-self:start}.issues-list li>div h4{font-size:1rem;font-weight:700;color:var(--text-strong);margin:0 0 .35rem}.issues-list li>div p{color:var(--text-soft);font-size:.9rem;line-height:1.75;margin:0}.heater-brands{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:.65rem;margin-top:1.5rem}.heater-brand{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem 1rem;background:var(--surface);border:1px solid var(--border-soft);border-radius:10px;color:var(--text-strong);text-decoration:none;font-weight:600;font-size:.92rem;text-align:center;transition:all var(--transition-fast)}.heater-brand:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-2px);box-shadow:0 6px 14px rgba(47,128,237,.22)}.heater-brand i{color:var(--brand);transition:color var(--transition-fast)}.heater-brand:hover i{color:#fff}.heater-faq details{background:var(--surface);border:1px solid var(--border-soft);border-radius:12px;margin-bottom:.65rem;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.heater-faq details[open]{border-color:var(--brand);box-shadow:0 8px 22px rgba(47,128,237,.08)}.heater-faq summary{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.05rem 1.25rem;cursor:pointer;list-style:none;font-weight:600;color:var(--text-strong);transition:color var(--transition-fast)}.heater-faq summary::-webkit-details-marker{display:none}.heater-faq summary:hover{color:var(--brand)}.heater-faq summary::after{content:"+";width:28px;height:28px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:1.2rem;flex-shrink:0;transition:transform var(--transition-base),background var(--transition-fast),color var(--transition-fast)}.heater-faq details[open] summary::after{content:"−";transform:rotate(180deg);background:var(--brand);color:#fff}.heater-faq details>*:not(summary){padding:0 1.25rem 1.1rem;color:var(--text-soft);line-height:1.85}.heater-faq details ul{padding-inline-start:1.5rem;margin:.35rem 0}.heater-faq details strong{color:var(--text-strong)}.heater-faq details a{color:var(--brand);font-weight:600;text-decoration:none}.heater-faq details a:hover{text-decoration:underline}