.demo{padding-top:36px;padding-bottom:48px}
.demo h1{margin:.2em 0}
.stage{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line,#dcd8cc);background:#0b2a2c;aspect-ratio:16/10;box-shadow:0 18px 50px rgba(8,38,42,.25)}
.stage .intro,.stage .view{position:absolute;inset:0}
.intro .bgv{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.intro .veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,28,31,.88),rgba(6,28,31,.35))}
.intro .ic{position:relative;max-width:520px;padding:clamp(20px,5vw,56px);color:#fff;display:flex;flex-direction:column;gap:14px;height:100%;justify-content:center;align-items:flex-start}
.intro h2{font-size:clamp(24px,3.4vw,38px);line-height:1.1;margin:0}
.intro p{margin:0;opacity:.9}
.view img{width:100%;height:100%;object-fit:cover;object-position:top;display:block}
.spot{position:absolute;border:3px solid #ffc24b;border-radius:12px;background:rgba(255,194,75,.12);cursor:pointer;animation:pulse 2s ease-in-out infinite;padding:0}
.spot:focus-visible{outline:3px solid #fff;outline-offset:2px}
.spot .tip{position:absolute;left:50%;top:100%;transform:translate(-50%,10px);background:#111;color:#fff;border-radius:10px;padding:8px 12px;font-size:14px;width:max-content;max-width:260px;text-align:left;opacity:0;pointer-events:none;transition:opacity .15s;z-index:2}
.spot:hover .tip,.spot:focus-visible .tip,.spot.open .tip{opacity:1}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,194,75,.55)}50%{box-shadow:0 0 0 10px rgba(255,194,75,0)}}
@media (prefers-reduced-motion:reduce){.spot{animation:none}.intro .bgv{display:none}.intro{background:url(/media/hero-foyer.jpg) center/cover}}
.panel{display:grid;grid-template-columns:auto 1fr auto;gap:18px 28px;align-items:center;margin-top:18px;padding:18px 20px;border:1px solid var(--line,#dcd8cc);border-radius:14px;background:#fff}
.steps{display:flex;gap:8px;margin:0;padding:0;list-style:none}
.steps button{width:34px;height:34px;border-radius:50%;border:1px solid var(--line,#dcd8cc);background:#fff;font-weight:700;cursor:pointer}
.steps button[aria-current="step"]{background:linear-gradient(135deg,#12a594,#0b4f6c);color:#fff;border:0}
.panel .txt h2{margin:0 0 4px;font-size:20px}.panel .txt p{margin:0}.panel .hint{color:#5a6763;font-size:14px;margin-top:6px}
.ctl{display:flex;gap:8px}
.end{grid-column:1/-1;border-top:1px solid var(--line,#dcd8cc);padding-top:14px}.end h3{margin:0 0 4px}
.fine{font-size:13px;margin-top:10px}
@media (max-width:760px){.panel{grid-template-columns:1fr}.stage{aspect-ratio:4/5}.view img{object-position:left top}.ctl{justify-content:space-between}}