:root{font-family:system-ui,-apple-system,sans-serif;color:#173a31;background:#f4f7f4;color-scheme:light}*{box-sizing:border-box}body{margin:0}header{display:flex;align-items:center;gap:14px;padding:20px;background:white;border-bottom:1px solid #d9e5df}header img{width:40px;height:40px;border-radius:10px}h1{font-size:22px;margin:0}header p{font-size:13px;color:#607b6f;margin:4px 0 0}main{max-width:1100px;margin:auto;padding:18px}#stage{position:relative;background:radial-gradient(ellipse,#fff,#e0eae1);border-radius:20px;border:1px solid #d6e2d8;overflow:hidden}model-viewer{display:block;width:100%;height:62svh;min-height:320px;max-height:760px;touch-action:none}button,select{font:inherit;border:1px solid #bfd3c7;border-radius:12px;background:white;color:inherit;padding:12px 18px;min-height:48px;cursor:pointer}button:disabled{opacity:.4;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid #2d9caa;outline-offset:3px}.ar{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);background:#125c4a;color:white;border:0;white-space:nowrap;box-shadow:0 3px 18px #12362c30}.fullscreen{position:absolute;top:12px;right:12px;background:#ffffffec;z-index:2;font-size:14px;padding:9px 14px}.progress{position:absolute;top:0;left:0;right:0;height:4px;background:#c7d8cf}.progress span{display:block;background:#125c4a;height:4px;width:0}.controls{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}#status,.note{font-size:14px;line-height:1.7;color:#4e6b5c}#status{min-height:24px}.save{background:white;border:1px solid #d7e3d9;border-radius:18px;padding:20px;margin-top:22px}.save h2{margin:0 0 16px;font-size:19px}.save-link{display:flex;flex-direction:column;gap:6px;border:1px solid #bad0c2;border-radius:12px;padding:16px;text-decoration:none;font-weight:650}.save-link small{font-weight:400;color:#577362}.save-link:hover{background:#eff6f0}a{color:#125c4a}details{font-size:14px;line-height:1.8;margin-top:22px;border-top:1px solid #d8e3da;padding-top:16px}summary{cursor:pointer;font-weight:650}footer{font-size:12px;color:#5e796d;margin:20px 0 12px}#guide{position:absolute;top:70px;left:14px;right:14px;background:#153b30e8;color:white;border-radius:12px;padding:16px;text-align:center;pointer-events:none}#stage.expanded{position:fixed;inset:0;z-index:9999;border-radius:0;border:0;background:#eef3ee}#stage.expanded model-viewer{height:100dvh;max-height:none;min-height:0}#stage:fullscreen{width:100%;height:100%;border-radius:0}#stage:fullscreen model-viewer{height:100dvh;max-height:none} [hidden]{display:none!important}@media(max-width:500px){header{padding:14px 16px}h1{font-size:19px}main{padding:12px}model-viewer{height:58svh;min-height:290px}.controls button{flex:1;padding:12px}.save{padding:16px}}