/* Heizung */
.hero{--hero-img:url(../img/heizung-sorglos.jpg);min-height:clamp(460px,64vh,700px);min-height:clamp(460px,64svh,700px)}
.hero-inner{padding:72px 31px 64px}
.hero h1{font-size:48px;line-height:1.08;max-width:760px;margin-bottom:18px}
section.section{padding:88px 0}
.section-alt{background:var(--surface)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.split h2{font-size:34px;margin-bottom:18px}
.split p{font-size:17px;line-height:1.7;color:var(--ink-soft)}
.section-head{max-width:680px;margin:0 auto 48px}
.section-head.tc{text-align:center}
.section-head h2{font-size:34px;margin-top:8px}
.feature{display:flex;gap:24px;align-items:flex-start;background:var(--bg);border:1px solid var(--line);border-radius:2px;padding:32px;max-width:640px;margin:48px auto 0}
.feature img{height:56px;width:56px;flex-shrink:0}
.feature h3{font-size:20px;margin-bottom:8px}
.feature p{font-size:15.5px;line-height:1.6;color:var(--ink-soft);margin:0}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.process-item{text-align:center}
.process-item img{height:64px;width:64px;margin:0 auto 18px}
.process-item h3{font-size:19px;margin-bottom:10px}
.process-item p{font-size:14.5px;line-height:1.6;color:var(--ink-soft)}
.banner{position:relative;background:var(--navy);color:var(--surface)}
.banner-grid{display:grid;grid-template-columns:1fr 1fr}
.banner-cell{position:relative;min-height:420px}
.banner-cell img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hours-cell{display:flex;flex-direction:column;justify-content:center;align-items:flex-end;text-align:right;padding:64px 72px}
.hours-cell h2{font-size:30px;margin-bottom:24px;color:var(--surface)}
@media(max-width:900px){.split,.banner-grid,.process{grid-template-columns:1fr}.split{gap:40px}.hero h1{font-size:32px}.hours-cell{align-items:center;text-align:center;padding:56px 32px}}
@media(max-width:600px){
  .hero-inner{padding:56px 18px 48px}
  .hero h1{font-size:28px}
  .hero p{font-size:16.5px}
  section.section{padding:56px 0}
  .split{gap:32px}
  .split h2,.section-head h2{font-size:26px}
  .section-head{margin-bottom:32px}
  .process{gap:26px}
  .feature{padding:22px;gap:16px;margin-top:36px}
  .feature img{height:46px;width:46px}
  .banner-cell{min-height:280px}
  .hours-cell{padding:40px 22px}
  .hours-cell h2{font-size:24px}
}
@media(max-width:400px){
  .hero-inner{padding:44px 12px 38px}
  .hero h1{font-size:24px}
  .hero p{font-size:15.5px}
  section.section{padding:42px 0}
  .split h2,.section-head h2{font-size:22px}
  .split p{font-size:15.5px}
  .feature{flex-direction:column;padding:18px;gap:12px}
  .feature img{height:40px;width:40px}
  .banner-cell{min-height:220px}
  .hours-cell{padding:32px 14px}
  .hours-cell h2{font-size:21px}
}