/* ============================================================
   Ruibo Cranes B2B Site · Design System (prefix: rb-)
   Primary brand red #B40304 (≈20%) · Accent red #C02415 (≈10%) · Neutrals (≈70%)
   Sections 1–12 = design system from the site prompt (Ruibo-site-AI-prompt-EN.md §4)
   Sections 13–16 = site-level components (header / sub-hero / forms / quickbar)
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root{
  --rb-blue:#B40304;
  --rb-blue-deep:#7A0203;
  --rb-blue-mid:#C02415;
  --rb-orange:#B40304;
  --rb-orange-deep:#7A0203;
  --rb-red-tint:#FF9B8D;
  --rb-paper:#FFFFFF;
  --rb-mist:#F4F6F8;
  --rb-line:#D9DFE5;
  --rb-steel:#5A6B7A;
  --rb-ink:#16222E;
  --rb-font:"Barlow","Archivo","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  --rb-mono:ui-monospace,"SF Mono",Menlo,Consolas,"Courier New",monospace;
  --rb-maxw:1600px;
  --rb-pad:clamp(20px,4vw,60px);
  --rb-sec:clamp(36px,5vw,72px);
  --rb-radius:2px;
  --rb-trace:rgba(180,3,4,.05);
}

/* ---------- 2. Base ---------- */
.rb-root{color:var(--rb-ink);font-family:var(--rb-font);background:var(--rb-paper);-webkit-font-smoothing:antialiased}
.rb-root img{max-width:100%;height:auto;display:block}
.rb-root a{color:var(--rb-blue);text-decoration:none}
.rb-root a:hover{color:var(--rb-orange-deep)}
.rb-root :focus-visible{outline:2px solid var(--rb-orange);outline-offset:2px}

.rb-h1{font-size:clamp(40px,5vw,64px);font-weight:700;line-height:1.1;margin:0 0 16px;color:var(--rb-ink)}
.rb-h2{font-size:clamp(28px,3.5vw,44px);font-weight:700;line-height:1.2;margin:0 0 12px;color:var(--rb-ink)}
.rb-h3{font-size:clamp(22px,2.2vw,28px);font-weight:600;line-height:1.3;margin:0 0 10px}
.rb-body{font-size:clamp(15px,1.1vw,17px);font-weight:400;line-height:1.6;color:var(--rb-steel)}
.rb-kicker{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--rb-blue)}

/* ---------- 3. Layout skeleton ---------- */
.rb-outer{width:100%;padding-block:var(--rb-sec)}
.rb-inner{max-width:var(--rb-maxw);margin:0 auto;padding-inline:var(--rb-pad)}

.rb-sec-head{position:relative;border-left:3px solid var(--rb-blue);padding-left:18px;margin-bottom:clamp(24px,3vw,44px)}
.rb-sec-no{display:block;font-family:var(--rb-mono);font-size:12px;letter-spacing:.12em;color:var(--rb-orange);margin-bottom:6px}

.rb-blueprint{background-image:linear-gradient(var(--rb-trace) 1px,transparent 1px),
  linear-gradient(90deg,var(--rb-trace) 1px,transparent 1px);background-size:32px 32px}

/* ---------- 4. Buttons & CTAs ---------- */
/* Anchored as "a.rb-btn-*" so global link colors (.rb-root a / :hover) and nav
   link rules can never override button label colors (incl. hover states). */
.rb-btn{display:inline-block;font-size:15px;font-weight:600;letter-spacing:.02em;
  padding:14px 28px;border:0;border-radius:var(--rb-radius);cursor:pointer;font-family:inherit;
  transition:background-color .2s,color .2s,border-color .2s} /* hover never changes size — no layout shift */
.rb-root a.rb-btn-primary,.rb-btn-primary{background:var(--rb-orange);color:#fff;
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,0 100%)} /* chamfered CTA */
.rb-root a.rb-btn-primary:hover,.rb-btn-primary:hover{background:var(--rb-orange-deep);color:#fff}
.rb-root a.rb-btn-ghost,.rb-btn-ghost{border:1px solid var(--rb-blue);color:var(--rb-blue);background:transparent}
.rb-root a.rb-btn-ghost:hover,.rb-btn-ghost:hover{background:var(--rb-blue);color:#fff}
.rb-root a.rb-btn-ghost-light,.rb-btn-ghost-light{border:1px solid rgba(255,255,255,.5);color:#fff;background:rgba(122,2,3,.45)}
/* On deep-red panels the red CTA flips to white so it never blends into the background */
.rb-hero a.rb-btn-primary,.rb-band a.rb-btn-primary,.rb-pagehero a.rb-btn-primary{background:#fff;color:var(--rb-blue)}
.rb-hero a.rb-btn-primary:hover,.rb-band a.rb-btn-primary:hover,.rb-pagehero a.rb-btn-primary:hover{background:#FFE4E0;color:var(--rb-blue)}
.rb-root a.rb-btn-ghost-light:hover,.rb-btn-ghost-light:hover{background:#fff;color:var(--rb-blue)}

/* ---------- 5. Hero ---------- */
.rb-hero{background:var(--rb-blue-deep);color:#fff;position:relative;overflow:hidden}
.rb-hero.rb-blueprint{background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px)}
.rb-hero .rb-inner{display:grid;grid-template-columns:1fr 2fr;gap:clamp(24px,4vw,64px);
  align-items:center;padding-block:clamp(48px,6vw,96px)}
.rb-hero .rb-h1{color:#fff}
.rb-hero .rb-kicker{color:var(--rb-red-tint)}
.rb-hero .rb-body{color:rgba(255,255,255,.78)}
.rb-hero-visual svg{width:100%;height:auto;display:block}

.rb-databar{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.2)}
.rb-databar>div{padding:18px 20px 0;border-left:1px solid rgba(255,255,255,.2)}
.rb-databar>div:first-child{border-left:0;padding-left:0}
.rb-databar .num{font-family:var(--rb-mono);font-size:clamp(24px,2.6vw,36px);font-weight:700;color:#fff}
.rb-databar .lbl{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:rgba(255,255,255,.72);margin-top:4px}

/* ---------- 5b. Hero, photo variant: full-bleed image with copy overlaid ---------- */
.rb-hero-photo{position:relative;isolation:isolate}
.rb-hero-photo .rb-hero-bg{position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center 40%;z-index:-2}
.rb-hero-photo .rb-hero-shade{position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,rgba(122,2,3,.96) 0%,rgba(122,2,3,.85) 46%,rgba(122,2,3,.32) 100%),
             linear-gradient(0deg,rgba(122,2,3,.9) 0%,rgba(122,2,3,0) 50%)}
.rb-hero-photo .rb-inner{display:block;padding-block:clamp(72px,9vw,150px)}
.rb-hero-photo .rb-hero-copy{max-width:720px}
.rb-hero-photo .rb-databar{margin-top:clamp(28px,4vw,56px)}
@media (max-width:640px){
  .rb-hero-photo .rb-hero-shade{background:linear-gradient(0deg,rgba(122,2,3,.95) 0%,rgba(122,2,3,.84) 55%,rgba(122,2,3,.45) 100%)}
}

/* ---------- 6. Content grids ---------- */
.rb-grid{display:grid;gap:clamp(16px,2vw,28px)}
.rb-grid-2{grid-template-columns:repeat(2,1fr)}
.rb-grid-3{grid-template-columns:repeat(3,1fr)}
.rb-grid-4{grid-template-columns:repeat(4,1fr)}
.rb-asym-1-2{grid-template-columns:1fr 2fr}
.rb-asym-2-1{grid-template-columns:2fr 1fr}

/* ---------- 7. Product card ---------- */
.rb-card{position:relative;background:var(--rb-paper);border:1px solid var(--rb-line);
  border-radius:var(--rb-radius);transition:border-color .2s;display:flex;flex-direction:column}
.rb-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;
  background:var(--rb-blue);transform:scaleX(.25);transform-origin:left;transition:transform .25s}
.rb-card:hover{border-color:var(--rb-blue)}
.rb-card:hover::before{transform:scaleX(1)}
.rb-card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:8px;flex:1}
.rb-card-body .rb-h3{font-size:20px}
.rb-card .more{font-size:14px;font-weight:600;color:var(--rb-blue);margin-top:auto}

.rb-imgbox{background-color:var(--rb-mist);border:1px solid var(--rb-line);border-radius:var(--rb-radius);
  display:flex;align-items:center;justify-content:center;padding:0;overflow:hidden}
.rb-imgbox svg,.rb-imgbox img{width:100%;height:auto}


/* ---------- 8. Spec table ---------- */
.rb-specs{width:100%;border-collapse:collapse;font-size:15px;border:1px solid var(--rb-line)}
.rb-specs caption{text-align:left;font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--rb-steel);padding-bottom:8px}
.rb-specs th{font-family:var(--rb-mono);font-size:13px;font-weight:600;text-align:left;
  letter-spacing:.04em;color:var(--rb-blue);background:var(--rb-mist);border-bottom:1px solid var(--rb-line)}
.rb-specs th,.rb-specs td{padding:12px 16px;text-align:left;vertical-align:top}
.rb-specs tbody tr{border-bottom:1px solid var(--rb-line)}
.rb-specs tbody tr:nth-child(even){background:#FAFBFC}

/* ---------- 9. FAQ ---------- */
.rb-faq{border-top:1px solid var(--rb-line)}
.rb-faq details{border-bottom:1px solid var(--rb-line)}
.rb-faq summary{position:relative;cursor:pointer;padding:16px 28px 16px 0;font-size:16px;font-weight:600;list-style:none}
.rb-faq summary::-webkit-details-marker{display:none}
.rb-faq summary::after{content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);
  font-family:var(--rb-mono);font-size:18px;color:var(--rb-orange)}
.rb-faq details[open] summary::after{content:"−"}
.rb-faq .rb-faq-a{padding:0 28px 16px 0;font-size:15px;line-height:1.6;color:var(--rb-steel)}

/* ---------- 10. Dark CTA band ---------- */
.rb-band{background:var(--rb-ink);color:#fff}
.rb-band .rb-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:24px;padding-block:clamp(32px,4vw,56px)}
.rb-band .rb-h2{color:#fff;margin:0;font-size:clamp(24px,3vw,36px)}
.rb-band .rb-body{color:rgba(255,255,255,.75)}

/* ---------- 11. Footer ---------- */
.rb-footer{background:var(--rb-blue-deep);color:rgba(255,255,255,.78);font-size:14px;line-height:1.7}
.rb-footer .rb-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:clamp(20px,3vw,48px);padding-block:clamp(36px,5vw,64px)}
.rb-footer .rb-ft-title{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#fff;margin:0 0 14px}
.rb-footer a{color:rgba(255,255,255,.78)}
.rb-footer a:hover{color:var(--rb-red-tint)}
.rb-footer ul{list-style:none;margin:0;padding:0}
.rb-footer li{margin:0 0 8px}
.rb-footer p{margin:0 0 12px}
.rb-ft-legal{border-top:1px solid rgba(255,255,255,.14);font-size:12.5px;color:rgba(255,255,255,.55)}
.rb-ft-legal .rb-inner{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;padding-block:18px}

/* ---------- 12. Responsive ---------- */
@media (max-width:1024px){
  .rb-grid-3,.rb-grid-4{grid-template-columns:repeat(2,1fr)}
  .rb-asym-1-2,.rb-asym-2-1{grid-template-columns:1fr}
  .rb-hero .rb-inner{grid-template-columns:1fr}
  .rb-databar{grid-template-columns:repeat(2,1fr)}
  .rb-databar>div:nth-child(odd){border-left:0;padding-left:0}
  .rb-footer .rb-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .rb-grid-2,.rb-grid-3,.rb-grid-4{grid-template-columns:1fr}
  .rb-footer .rb-inner{grid-template-columns:1fr}
  .rb-band .rb-inner{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  .rb-card,.rb-card::before,.rb-btn{transition:none}
}

/* ============================================================
   13. Header & navigation (site-level component)
   ============================================================ */
.rb-header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 1px 0 var(--rb-line)}
.rb-header>.rb-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;padding-block:0}
.rb-logo{display:flex;align-items:center;gap:12px;font-weight:700;color:var(--rb-ink);font-size:17px;letter-spacing:.02em;line-height:1.1}
.rb-logo:hover{color:var(--rb-ink)}
.rb-logo img{display:block;height:48px;width:auto}
.rb-nav{display:flex;align-items:center;gap:clamp(12px,1.6vw,26px)}
.rb-nav>a{font-size:15px;font-weight:500;color:var(--rb-ink);padding:26px 0 22px}
.rb-nav>a:hover{color:var(--rb-blue)}
.rb-nav>a[aria-current="page"]{color:var(--rb-blue)}
.rb-nav-cta{padding:12px 22px !important;border-bottom:none !important}
.rb-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;
  background:transparent;border:1px solid var(--rb-line);border-radius:var(--rb-radius);cursor:pointer;padding:10px}
.rb-burger span{display:block;height:2px;background:var(--rb-ink)}
@media (max-width:900px){
  .rb-burger{display:flex}
  .rb-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;box-shadow:0 8px 16px rgba(22,34,46,.08);
    border-top:1px solid var(--rb-line)}
  .rb-nav.open{display:flex}
  .rb-nav>a{padding:14px 24px;border-bottom:1px solid var(--rb-line)}
  .rb-nav>a[aria-current="page"]{border-bottom-color:var(--rb-line);box-shadow:inset 3px 0 0 var(--rb-orange)}
  .rb-nav-cta{margin:12px 24px 16px;text-align:center}
}

/* ---------- 14. Sub-page hero & breadcrumbs ---------- */
.rb-pagehero{background:var(--rb-blue-deep);color:#fff}
.rb-pagehero.rb-blueprint{background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px)}
.rb-pagehero .rb-inner{padding-block:clamp(36px,4.5vw,64px)}
.rb-pagehero .rb-h1{color:#fff;font-size:clamp(30px,4vw,52px);margin-bottom:8px}
.rb-pagehero .rb-kicker{color:var(--rb-red-tint)}
.rb-pagehero .rb-body{color:rgba(255,255,255,.78);max-width:820px}
.rb-crumbs{font-family:var(--rb-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase}
.rb-crumbs a{color:rgba(255,255,255,.6)}
.rb-crumbs a:hover{color:#fff}
.rb-crumbs span{color:var(--rb-red-tint)}

/* ---------- 15. Forms ---------- */
.rb-form{display:grid;grid-template-columns:1fr 1fr;gap:16px 20px}
.rb-form .full{grid-column:1/-1}
.rb-form label{display:block;font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--rb-ink);margin-bottom:6px}
.rb-form input,.rb-form select,.rb-form textarea{width:100%;padding:12px 14px;border:1px solid var(--rb-line);
  border-radius:var(--rb-radius);font:inherit;font-size:15px;color:var(--rb-ink);background:#fff}
.rb-form textarea{min-height:120px;resize:vertical}
.rb-form input:focus-visible,.rb-form select:focus-visible,.rb-form textarea:focus-visible{
  outline:2px solid var(--rb-orange);outline-offset:1px}
.rb-form-note{font-size:13px;line-height:1.6;color:var(--rb-steel);margin-top:12px}
@media (max-width:640px){.rb-form{grid-template-columns:1fr}}

/* ---------- 16. Mobile quick-contact bar ---------- */
.rb-quickbar{display:none}
@media (max-width:768px){
  .rb-quickbar{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;left:0;right:0;bottom:0;z-index:60;
    background:var(--rb-blue-deep);box-shadow:0 -1px 0 rgba(255,255,255,.15)}
  .rb-quickbar a{color:#fff;text-align:center;padding:13px 4px;font-size:13px;font-weight:600;
    border-left:1px solid rgba(255,255,255,.15)}
  .rb-quickbar a:first-child{border-left:0}
  .rb-quickbar a:hover{color:var(--rb-red-tint)}
  body{padding-bottom:49px}
}

/* ---------- Misc utilities ---------- */
.rb-note{font-size:13px;color:var(--rb-steel);line-height:1.6}
.rb-check{list-style:none;padding:0;margin:0}
.rb-check li{position:relative;padding:0 0 10px 26px;font-size:15px;line-height:1.6;color:var(--rb-steel)}
.rb-check li::before{content:"";position:absolute;left:0;top:7px;width:12px;height:7px;
  border-left:2px solid var(--rb-orange);border-bottom:2px solid var(--rb-orange);transform:rotate(-45deg)}

/* ---------- 17. Motion: scroll reveal / hero exit / micro-interactions ---------- */
/* Applied by main.js — elements start hidden only when JS marks them (no-JS pages stay intact). */
.rb-reveal{opacity:0;transform:translateY(26px);transition:opacity .55s cubic-bezier(.22,.61,.36,1),transform .55s cubic-bezier(.22,.61,.36,1);transition-delay:var(--rb-d,0ms)}
.rb-reveal.rb-rv-zoom{transform:translateY(26px) scale(.965)}
.rb-reveal.is-in{opacity:1;transform:none}
/* Images get an extra settle-in */
.rb-imgbox.rb-reveal img{transition:transform .7s cubic-bezier(.22,.61,.36,1)}
.rb-imgbox.rb-reveal.rb-rv-zoom img{transform:scale(1.06)}
.rb-imgbox.rb-reveal.is-in img{transform:scale(1)}
/* Hero/pagehero content fades UP on load … */
.rb-hero .rb-inner>*,.rb-pagehero .rb-inner>*{transition:opacity .6s ease,transform .6s ease}
/* …and fades OUT as the user scrolls away (exit animation, driven by JS) */
.rb-hero.is-exit .rb-inner,.rb-pagehero.is-exit .rb-inner{opacity:0;transform:translateY(-34px)}
/* Header: shadow + slight shrink after scrolling */
.rb-header{transition:box-shadow .3s ease}
.rb-header.is-scrolled{box-shadow:0 6px 24px rgba(122,2,3,.18)}
/* Card micro-interactions */
.rb-card{transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.rb-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(122,2,3,.12)}
.rb-card:hover .rb-imgbox img{transform:scale(1.04)}
.rb-card .rb-imgbox img{transition:transform .45s ease}
/* Gallery images lift slightly on hover */
.rb-grid .rb-imgbox{transition:transform .3s ease,box-shadow .3s ease}
.rb-grid .rb-imgbox:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(122,2,3,.14)}
.rb-grid .rb-imgbox:hover img{transform:scale(1.035)}
.rb-grid .rb-imgbox img{transition:transform .45s ease}
/* Buttons press feedback */
.rb-btn{transition:transform .15s ease,background-color .25s ease,color .25s ease,box-shadow .25s ease}
.rb-btn:active{transform:translateY(1px) scale(.985)}
/* FAQ rows already use <details>; give the marker a spin */
.rb-faq summary{transition:color .2s ease}
.rb-faq summary::marker{transition:transform .3s ease}
.rb-faq details[open] summary{color:var(--rb-blue)}
/* Respect users who prefer no motion */
@media (prefers-reduced-motion:reduce){
  .rb-reveal{opacity:1;transform:none;transition:none}
  .rb-imgbox.rb-reveal.rb-rv-zoom img{transform:none}
  .rb-hero .rb-inner>*,.rb-pagehero .rb-inner>*{transition:none}
  .rb-card,.rb-grid .rb-imgbox,.rb-btn,.rb-grid .rb-imgbox img,.rb-card .rb-imgbox img{transition:none}
  .rb-card:hover,.rb-grid .rb-imgbox:hover{transform:none}
}

/* Contained product photos (hooks & clamps): keep original ratio, no crop */
.rb-imgbox.rb-fit{padding:18px}
.rb-imgbox.rb-fit img{width:auto;max-width:100%;height:auto;max-height:520px;object-fit:contain;border-radius:calc(var(--rb-radius) - 6px)}

/* ---------- 18. Hover micro-interactions ---------- */
/* Image frames: lift + deeper zoom + warm glow + a red veil sweeping up from the bottom */
.rb-grid .rb-imgbox{position:relative}
.rb-grid .rb-imgbox::after{content:"";position:absolute;left:0;right:0;bottom:0;height:38%;
  background:linear-gradient(to top,rgba(122,2,3,.55),rgba(122,2,3,0));
  opacity:0;transform:translateY(100%);transition:opacity .35s ease,transform .35s ease;pointer-events:none}
.rb-grid .rb-imgbox:hover{transform:translateY(-5px);box-shadow:0 16px 34px rgba(122,2,3,.18)}
.rb-grid .rb-imgbox:hover img{transform:scale(1.08);filter:brightness(1.06) saturate(1.08)}
.rb-grid .rb-imgbox:hover::after{opacity:1;transform:translateY(0)}
.rb-grid .rb-imgbox img{transition:transform .5s cubic-bezier(.22,.61,.36,1),filter .35s ease}
/* Product cards: stronger lift, red edge lights up */
.rb-card{border-color:var(--rb-line)}
.rb-card:hover{transform:translateY(-6px);box-shadow:0 18px 38px rgba(122,2,3,.16);border-color:var(--rb-blue-mid)}
.rb-card:hover .rb-imgbox img{transform:scale(1.09)}
.rb-card .rb-imgbox img{transition:transform .5s cubic-bezier(.22,.61,.36,1)}
/* "details →" links: the arrow nudges right */
.rb-card .more{transition:color .2s ease,letter-spacing .25s ease}
.rb-card:hover .more,.rb-card .more:hover{color:var(--rb-blue-deep);letter-spacing:.04em}
/* Buttons: rise + shadow on hover, press on click */
.rb-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(122,2,3,.22)}
.rb-btn:active{transform:translateY(1px) scale(.985);box-shadow:none}
/* Nav links: red underline sweeps in (desktop only — mobile menu has its own separators) */
@media (min-width:769px){
  .rb-nav>a:not(.rb-btn){position:relative}
  .rb-nav>a:not(.rb-btn)::after{content:"";position:absolute;left:10px;right:10px;bottom:6px;height:2px;
    background:var(--rb-blue);transform:scaleX(0);transform-origin:left;transition:transform .28s ease}
  .rb-nav>a:not(.rb-btn):hover::after,.rb-nav>a:not(.rb-btn)[aria-current="page"]::after{transform:scaleX(1)}
}
/* FAQ: hover glow + answer slides open */
.rb-faq summary{transition:background-color .25s ease,color .25s ease;border-radius:6px}
.rb-faq summary:hover{background:var(--rb-trace)}
@keyframes rb-faq-open{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.rb-faq details[open] .rb-faq-a{animation:rb-faq-open .35s ease both}
/* Footer & quickbar links: smooth recolor */
.rb-footer a,.rb-quickbar a{transition:color .2s ease}
@media (prefers-reduced-motion:reduce){
  .rb-grid .rb-imgbox::after,.rb-grid .rb-imgbox:hover,.rb-grid .rb-imgbox:hover img,
  .rb-card:hover,.rb-card:hover .rb-imgbox img,.rb-card .more,.rb-btn:hover,.rb-btn:active,
  .rb-nav>a:not(.rb-btn)::after,.rb-faq summary,.rb-faq summary:hover,.rb-faq details[open] .rb-faq-a{transition:none;animation:none;transform:none}
}