:root{
  --ink:#172629;
  --muted:#536166;
  --line:#dce2e1;
  --lime:#d8f480;
  --pale:#f2f5f4;
  --max:1320px;
  --header:96px;
}
*{box-sizing:border-box}
html{
  scroll-behavior:smooth;
  scroll-padding-top:var(--header);
  scroll-snap-type:y mandatory;
}
body{
  margin:0;
  color:var(--ink);
  background:#fff;
  font-family:Arial,Helvetica,sans-serif;
  font-size:16px;
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
button{font:inherit}
img{display:block;width:100%;height:auto}
figure,p,h1,h2,h3{margin:0}
button,a{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:3px solid #367679;outline-offset:5px}
.container{max-width:var(--max);width:calc(100% - 96px);margin:auto}

.header{
  position:sticky;top:0;z-index:20;
  min-height:var(--header);
  max-width:1440px;
  width:100%;
  padding:20px 48px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:25px;
  background:#fff;
  box-shadow:0 0 0 100vmax #fff;
  clip-path:inset(0 -100vmax);
}
.brand{display:inline-flex;align-items:center}
.brand img{height:44px;width:auto;max-width:240px;object-fit:contain}
.header nav{display:flex;gap:28px;font-size:14px;font-weight:600}
.header nav a:hover{color:#47716a}

.button{
  display:inline-flex;gap:30px;align-items:center;justify-content:center;
  min-height:52px;padding:13px 23px;border-radius:7px;
  font-size:15px;font-weight:600;transition:transform .2s,background .2s;
}
.button:hover{transform:translateY(-2px)}
.button.dark{background:var(--ink);color:#fff}
.button.dark:hover{background:#304c4e}
.button.small{min-height:43px;padding:10px 17px;font-size:14px;gap:18px}
.button.lime{background:var(--lime);color:var(--ink)}

.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;line-height:1.5;margin-bottom:18px}
h1{font-size:clamp(42px,5vw,72px);line-height:1.06;letter-spacing:-3.5px;font-weight:600}
h2{font-size:clamp(32px,3.4vw,48px);line-height:1.13;letter-spacing:-2px;font-weight:600}
h3{font-size:22px;line-height:1.25;letter-spacing:-.5px;font-weight:600}

.panel{
  min-height:100svh;
  scroll-snap-align:start;
  scroll-snap-stop:always;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:28px 0 40px;
}
.panel-hero{min-height:calc(100svh - var(--header))}

.hero{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:40px;
  align-items:center;
}
.hero-copy{padding:8px 0}
.intro{font-size:20px;line-height:1.55;color:var(--muted);max-width:540px;margin-top:22px}
.hero-actions{margin-top:28px}
.hero-photo{overflow:hidden;border-radius:12px;min-height:420px;background:#e7eae8}
.hero-photo img{height:100%;object-fit:cover;object-position:69% center}

.fact-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:14px;
  margin-top:36px;
}
.fact-card{
  background:var(--pale);
  border:1px solid var(--line);
  border-radius:14px;
  min-height:92px;
  padding:18px 14px;
  display:grid;
  place-items:center;
  text-align:center;
}
.fact-card strong{
  font-size:18px;
  letter-spacing:-.3px;
  line-height:1.25;
}

.panel-templates{background:var(--pale);justify-content:flex-start;padding-top:36px}
.panel-intro{max-width:720px;margin-bottom:28px}
.panel-intro p:last-child{margin-top:14px;color:var(--muted);font-size:18px}

.theme-carousel{position:relative;margin-top:4px}
.theme-track{
  display:flex;gap:22px;overflow-x:auto;
  scroll-snap-type:x mandatory;scroll-behavior:smooth;
  -webkit-overflow-scrolling:touch;
  padding:6px 48px 10px;margin:0;
  scrollbar-width:none;cursor:grab;touch-action:pan-x;
}
.theme-track::-webkit-scrollbar{display:none}
.theme-track.is-dragging{cursor:grabbing;scroll-behavior:auto;user-select:none}
.theme-slide{flex:0 0 min(78%,860px);scroll-snap-align:center;margin:0}
.theme-sign{position:relative;background:#fff;border-radius:12px;overflow:hidden;border:1px solid var(--line);box-shadow:0 12px 32px rgba(23,38,41,.07)}
.theme-sign img{width:100%;height:auto;display:block;pointer-events:none;aspect-ratio:3/2;object-fit:cover}
.theme-slide figcaption{display:flex;justify-content:space-between;gap:12px;padding:12px 4px 0;font-size:14px;color:var(--muted)}
.theme-slide figcaption strong{color:var(--ink);font-size:16px}
.theme-nav{
  position:absolute;top:42%;z-index:3;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  display:grid;place-items:center;cursor:pointer;box-shadow:0 8px 20px rgba(23,38,41,.12);
}
.theme-nav svg{width:20px;height:20px}
.theme-nav:hover{background:var(--lime);border-color:transparent}
.theme-nav.prev{left:18px}
.theme-nav.next{right:18px}
.theme-status{font-size:13px;color:var(--muted);margin-top:10px}
.theme-dots{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.theme-dot{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:#c5d0cc;cursor:pointer}
.theme-dot[aria-current=true]{background:var(--ink);transform:scale(1.2)}

.update-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center}
.lead{margin-top:18px;color:var(--muted);font-size:18px;max-width:420px}
.update-photo{margin:0;border-radius:12px;overflow:hidden;background:#e7eae8}
.update-photo img{width:100%;aspect-ratio:3/2;object-fit:cover}

.mounting{background:var(--ink);color:#fff}
.mounting .eyebrow{color:var(--lime)}
.section-heading{display:flex;justify-content:space-between;gap:45px;align-items:flex-end;margin-bottom:36px}
.section-heading>p{max-width:385px;color:var(--muted)}
.mounting .section-heading>p{color:#c1cbcb}
.mount-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.photo-wrap{position:relative;overflow:hidden;border-radius:9px;background:#3a4648}
.photo-wrap img{aspect-ratio:1.34;object-fit:cover}
.photo-wrap.portrait img{object-position:30% center}
.image-label{position:absolute;left:17px;top:17px;background:#ffffffeb;color:var(--ink);border-radius:4px;font-size:11px;font-weight:700;letter-spacing:1.2px;padding:7px 10px}
.mount-caption{display:flex;gap:20px;margin-top:20px}
.round-number{display:grid;place-items:center;min-width:34px;height:34px;border:1px solid #6a7a7c;border-radius:50%;font-size:12px;margin-top:1px}
.mount-caption p{font-size:15px;color:#c1cbcb;margin-top:8px}

.size-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.size-card{padding:36px 40px;border-radius:10px;background:var(--pale);border:1px solid var(--line)}
.size-card-large{background:var(--lime);border-color:var(--lime)}
.size-tag{font-size:11px;font-weight:700;letter-spacing:1.8px}
.size-card h3{display:flex;align-items:baseline;gap:18px;margin:25px 0 18px}
.size-value{font-size:100px;line-height:1;letter-spacing:-6px;font-weight:500}
.size-value>span{font-size:60px;vertical-align:top;letter-spacing:-3px}
.size-unit{font-size:19px;letter-spacing:0;font-weight:400}
.size-card p{color:var(--muted);font-size:15px}
.size-card-large p{color:#354c32}
.size-note{font-size:12px;color:var(--muted);margin-top:16px}

.panel-details{justify-content:flex-start;padding-top:40px}
.detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.detail-grid article{background:var(--pale);border:1px solid var(--line);border-radius:14px;padding:24px 20px}
.detail-grid p{margin-top:10px;color:var(--muted);font-size:15px}

.closing{margin-top:48px;padding:48px 32px;text-align:center;border-radius:12px;background:var(--ink);color:#fff}
.closing h2{font-size:clamp(28px,3vw,42px)}
.closing .button{margin-top:26px}

footer{padding:36px 0 20px;display:flex;justify-content:space-between;align-items:center;gap:24px;font-size:13px;color:var(--muted)}
footer .brand img{height:36px;max-width:200px}
footer a:last-child{text-decoration:underline;text-underline-offset:4px}

@media(max-width:1100px){
  .container{width:calc(100% - 56px)}
  .header{padding:20px 28px}
  .header nav{gap:16px}
  .hero{gap:24px}
  .hero-photo{min-height:340px}
  .fact-grid{grid-template-columns:repeat(5,1fr);gap:10px}
  .fact-card{min-height:78px;padding:14px 10px}
  .fact-card strong{font-size:15px}
  .detail-grid{grid-template-columns:1fr 1fr;gap:14px}
  .update-layout{gap:24px}
  .theme-nav.prev{left:8px}
  .theme-nav.next{right:8px}
}
@media(max-width:720px){
  :root{--header:78px}
  html{scroll-padding-top:20px;scroll-snap-type:y proximity}
  .container{width:calc(100% - 36px)}
  .header{padding:16px 18px;flex-wrap:wrap;gap:12px}
  .header .brand img{height:36px}
  .header nav{order:3;width:100%;justify-content:center;gap:16px;padding-top:10px;border-top:1px solid var(--line);font-size:12px}
  .header .button{font-size:12px;padding:8px 10px;gap:10px;min-height:39px}
  .panel{min-height:auto;padding:28px 0 36px}
  .hero{grid-template-columns:1fr;gap:20px}
  h1{font-size:46px;letter-spacing:-2.5px}
  .intro{max-width:none;font-size:17px}
  .hero-photo{min-height:0;height:320px}
  .fact-grid{grid-template-columns:1fr 1fr;gap:10px;margin-top:22px}
  .fact-card:last-child{grid-column:1 / -1}
  .theme-track{padding:4px 12px 8px;gap:14px}
  .theme-slide{flex-basis:88%}
  .update-layout,.mount-grid,.size-grid,.detail-grid{grid-template-columns:1fr}
  .section-heading{display:block}
  .section-heading>p{margin-top:16px;max-width:none}
  .size-card{padding:24px 18px}
  .size-value{font-size:76px}
  .closing{padding:36px 18px;margin-top:28px}
  footer{flex-wrap:wrap}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;scroll-snap-type:none}
  .button{transition:none}
  .theme-track{scroll-behavior:auto}
}