.arb-faq{max-width:1200px;margin:80px auto 100px;padding:0 24px;color:#111;scroll-margin-top:32px}
.faq-heading{margin:0 0 32px}.faq-heading>p{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#777;margin:0 0 13px}
.faq-heading h2{font-size:clamp(28px,3.4vw,44px);font-weight:650;letter-spacing:-.045em;line-height:1.12;margin:0}
.faq-list{display:grid;gap:8px}.faq-list details{background:#f3f3f3}
.faq-list summary{list-style:none;display:flex;align-items:center;gap:22px;padding:22px 26px;min-height:66px;cursor:pointer;font-size:17px;line-height:1.45;font-weight:500}
.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:hover{background:#ececec}
.faq-list summary:focus-visible{outline:2px solid #111;outline-offset:3px}
.faq-chevron{width:7px;height:7px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg);flex:none;transition:transform .22s}
details[open] .faq-chevron{transform:rotate(135deg)}
.faq-answer{padding:0 28px 28px 55px;max-width:900px;color:#565656;font-size:16px;line-height:1.75;animation:answer-in .25s ease-out}
.faq-answer p{margin:0 0 15px}.faq-answer p:last-child{margin-bottom:0}.faq-answer strong{font-weight:600;color:#222}
.faq-contact{display:inline-flex;gap:18px;color:#111;border-bottom:1px solid #111;padding:4px 0}
@keyframes answer-in{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}
.preview-foot{text-align:center;font-size:12px;color:#777;padding:24px;border-top:1px solid #eee}
#preview-lightbox{border:0;padding:40px 18px 18px;max-width:94vw;max-height:94vh}
#preview-lightbox::backdrop{background:#000b}#preview-lightbox img{max-height:80vh;max-width:85vw;object-fit:contain}
#preview-lightbox button{position:absolute;right:8px;top:5px;border:0;background:#fff;font-size:24px}
@media(max-width:700px){.arb-faq{margin:52px auto 64px;padding:0 22px}.faq-heading{margin-bottom:24px}.faq-list{gap:6px}.faq-list summary{gap:17px;padding:18px 17px;font-size:15px;min-height:64px}.faq-answer{padding:0 20px 23px 41px;font-size:15px;line-height:1.7}}
@media(prefers-reduced-motion:reduce){.faq-answer{animation:none}.faq-chevron{transition:none}}


.arb-editorial{max-width:1200px;margin:64px auto 72px;padding:0 24px;display:grid;grid-template-columns:1fr 1.25fr;gap:60px;align-items:start}
.arb-editorial .arb-section-label{margin:0 0 16px;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#777}
.arb-editorial h2{font-size:clamp(28px,3.4vw,44px);line-height:1.12;letter-spacing:-.045em;font-weight:650;margin:0}
.arb-editorial-text p{font-size:17px;line-height:1.8;color:#555;margin:0 0 18px;max-width:650px}
.arb-editorial-text p:last-child{margin-bottom:0}
.arb-editorial-usage{margin-top:72px;margin-bottom:24px}
.arb-process-intro{max-width:760px;margin:0 0 32px;font-size:17px;line-height:1.8;color:#555}
.faq-list{gap:5px}
.faq-list summary{min-height:46px;padding:12px 22px;font-size:15px;line-height:1.45;gap:19px}
.faq-answer{padding:2px 26px 22px 48px;font-size:15px}
@media(max-width:700px){
 .arb-editorial{grid-template-columns:1fr;gap:22px;margin:38px auto 44px;padding:0 22px}
 .arb-editorial .arb-section-label{margin-bottom:12px}
 .arb-editorial-text p,.arb-process-intro{font-size:15px;line-height:1.75}
 .arb-editorial-usage{margin-top:44px;margin-bottom:8px}
 .faq-list summary{min-height:44px;padding:11px 15px;font-size:14px;gap:15px}
 .faq-answer{padding:2px 18px 20px 37px;font-size:14px}
}


.arb-home-detail .arb-process-pair{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;width:100%;align-items:start}
.arb-home-detail .arb-process-pair figure{width:100%;min-width:0;margin:0}
.arb-home-detail .arb-process-pair .interactive-photo{display:block;width:100%;aspect-ratio:1;overflow:hidden}
.arb-home-detail .arb-process-pair img{display:block;width:100%;height:100%;aspect-ratio:1;object-fit:cover;object-position:center}
.arb-home-detail .arb-process-pair figcaption{margin:14px 0 0;font-size:14px;line-height:1.5;color:#555}
.arb-home-detail .seluj-specs{grid-template-columns:repeat(5,minmax(0,1fr))}
@media(max-width:900px){.arb-home-detail .seluj-specs{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){
.arb-home-detail .arb-process-pair{gap:14px}
.arb-home-detail .arb-process-pair figcaption{font-size:12px;margin-top:10px}
}


.arb-home-detail .arb-process-pair{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.arb-home-detail .arb-process-pair .arb-concept img{object-fit:contain;background:white}
@media(max-width:700px){
.arb-home-detail .arb-process-pair{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px}
.arb-home-detail .arb-process-pair figure{flex:0 0 80%;scroll-snap-align:start}
}


#preview-lightbox .preview-gallery-controls{display:flex;align-items:center;justify-content:center;gap:24px;margin-top:14px;font-size:14px}
#preview-lightbox .preview-gallery-controls button{position:static;border:1px solid #ddd;width:42px;height:42px;border-radius:50%;font-size:20px}
#preview-lightbox>img{max-height:72vh}