/* Sections métier des pages Thermographie et Surgente. */
.niche-section { padding: 64px 0; scroll-margin-top: 104px; }
.niche-section.alt { background: #f5f7fa; }
.niche-heading { max-width: 780px; margin-bottom: 30px; }
.niche-heading h2 { margin: 10px 0 14px; font-size: clamp(1.65rem, 3vw, 2.3rem); }
.niche-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.niche-card { padding: 28px; background: #fff; border: 1px solid #dce3eb; border-radius: 16px; }
.niche-card h3 { margin: 8px 0 14px; font-size: 1.15rem; line-height: 1.4; }
.niche-card p { margin: 0; }
.niche-kicker { color: #a33b00; font-size: .78rem; letter-spacing: .06em; font-weight: 800; text-transform: uppercase; }
.niche-note { margin: 22px 0 0; max-width: 900px; font-size: .9rem; color: #536275; }
.niche-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; align-items: center; }
.niche-breadcrumb { margin: 0 0 24px; font-size: .85rem; }
.niche-breadcrumb a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
.niche-breadcrumb span { opacity: .75; margin-left: 9px; }
.niche-hero-copy { max-width: 850px; margin: 18px auto 0; }
.thermo-hero .niche-actions, .page-hero .niche-actions { justify-content: center; }
.thermo-hero::before { pointer-events: none; }
.thermo-hero .niche-breadcrumb, .thermo-hero .niche-actions { position: relative; }
.thermo-hero .btn-secondary { color: #fff; border-color: #ffffff80; }
.niche-faq { max-width: 920px; }
.niche-faq details { border: 1px solid #dce3eb; border-radius: 12px; padding: 20px 24px; margin: 12px 0; background: #fff; }
.niche-faq summary { color: #1b263b; cursor: pointer; font-weight: 700; line-height: 1.55; }
.niche-faq details p { margin-top: 14px; }
.niche-faq a, .niche-note a { color: #a33b00; text-decoration: underline; text-underline-offset: 3px; }
.niche-source { margin-top: 24px; font-size: .85rem; color: #536275; }
.niche-source a { color: #a33b00; }
.niche-section :target { scroll-margin-top: 104px; }
@media (max-width: 800px) { .niche-grid { grid-template-columns: minmax(0, 1fr); } .niche-section { padding: 44px 0; } .niche-card { padding: 24px; } .thermo-hero { padding: 112px 0 48px; } .thermo-hero h1 { font-size: 2rem; } .thermo-hero p { font-size: 1rem; } .thermo-hero .btn { margin-top: 0; } .thermo-hero .niche-actions { gap: 12px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }