.demo-plate-guide{border-top:3px solid #d7af57;box-shadow:0 10px 30px #14263514;background:linear-gradient(145deg,#fff,#f1f5f8)}.demo-plate-heading{display:flex;gap:16px;align-items:flex-start}.demo-plate-heading h2{margin:0 0 8px}.demo-plate-heading p{margin:0;line-height:1.6}.demo-plate-play{display:grid;place-items:center;flex:none;width:46px;height:46px;border-radius:12px;background:linear-gradient(145deg,#2b4558,#142635);color:#edc367;box-shadow:0 4px 10px #14263530}.demo-plate-guide details{margin-top:18px;border-top:1px solid #d7e0e6;padding-top:16px}.demo-plate-guide summary{cursor:pointer;font-weight:700;color:#183246}.demo-plate-guide summary span{font-weight:400;font-size:.85em;margin-left:12px;color:#596c7b}.demo-plate-guide video{display:block;width:100%;max-height:75vh;margin:20px auto 12px;background:#142635;border-radius:12px;box-shadow:0 8px 24px #14263526}.demo-plate-guide .muted{font-size:.88em;line-height:1.5}@media(max-width:640px){.demo-plate-guide summary span{display:block;margin:8px 0 0}.demo-plate-heading{gap:10px}.demo-plate-play{width:36px;height:36px}}