:root{--bg-deep: #02040a;--cyan-100: #e6faff;--cyan-300: #7ee9ff;--cyan-500: #26b6ff;--cyan-700: #0a6ea8;--cyan-900: #06223a;--warning: #ffb347;--danger: #ff5e6c;--hud-blur: blur(10px) saturate(140%)}*{box-sizing:border-box}html,body{margin:0;padding:0;width:100%;height:100%;background:var(--bg-deep);color:var(--cyan-100);font-family:Inter,Segoe UI,Microsoft YaHei,system-ui,sans-serif;overflow:hidden;user-select:none;-webkit-user-select:none}#renderCanvas{position:fixed;inset:0;width:100vw;height:100vh;outline:none;touch-action:none;display:block}#ui-root{position:fixed;inset:0;pointer-events:none;z-index:10}#ui-root .interactive{pointer-events:auto}.enter-vr-btn{position:absolute;top:24px;right:24px;width:64px;height:64px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#7ee9ff40,#06223aa6 60%,#02040ad9);border:1px solid var(--cyan-500);box-shadow:0 0 12px #26b6ff73,inset 0 0 8px #7ee9ff66;backdrop-filter:var(--hud-blur);-webkit-backdrop-filter:var(--hud-blur);color:var(--cyan-100);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .18s ease,box-shadow .18s ease,opacity .4s ease;opacity:1}.enter-vr-btn:hover{transform:scale(1.05);box-shadow:0 0 24px #26b6ffbf,inset 0 0 14px #7ee9ff99}.enter-vr-btn.hidden{opacity:0;pointer-events:none}.enter-vr-btn svg{width:32px;height:32px;stroke:var(--cyan-100);fill:none;stroke-width:1.6}.info-panel{position:absolute;top:50%;right:32px;transform:translateY(-50%);width:360px;max-width:calc(100vw - 64px);padding:22px 22px 18px;border-radius:12px;background:linear-gradient(155deg,#0a6ea82e,#02040ac7 70%);border:1px solid var(--cyan-700);box-shadow:0 0 24px #26b6ff40,inset 0 0 24px #26b6ff0f;backdrop-filter:var(--hud-blur);-webkit-backdrop-filter:var(--hud-blur);color:var(--cyan-100);opacity:0;transform:translate(20px,-50%);transition:opacity .25s ease,transform .25s ease;pointer-events:none}.info-panel.visible{opacity:1;transform:translateY(-50%);pointer-events:auto}.info-panel:before{content:"";position:absolute;top:-1px;left:16px;width:28px;height:14px;background:var(--bg-deep);border-left:1px solid var(--cyan-500);border-right:1px solid var(--cyan-500)}.info-panel .panel-tag{font-family:JetBrains Mono,Cascadia Code,ui-monospace,monospace;font-size:11px;letter-spacing:.18em;color:var(--cyan-300);margin-bottom:6px}.info-panel h2{margin:0 0 2px;font-size:24px;font-weight:600;letter-spacing:.04em;color:var(--cyan-100);text-shadow:0 0 12px rgba(38,182,255,.45)}.info-panel h3{margin:0 0 14px;font-size:12px;font-weight:400;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan-500)}.info-panel .panel-divider{height:1px;background:linear-gradient(90deg,transparent,var(--cyan-700) 40%,var(--cyan-700) 60%,transparent);margin:0 0 14px}.info-panel p{margin:0;font-size:14px;line-height:1.6;color:#e6faffd9}.info-panel .close-btn{position:absolute;top:12px;right:12px;width:24px;height:24px;border-radius:50%;background:transparent;border:1px solid var(--cyan-700);color:var(--cyan-300);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;line-height:1;padding:0;transition:all .18s ease}.info-panel .close-btn:hover{border-color:var(--cyan-300);color:var(--cyan-100);box-shadow:0 0 8px #26b6ff66}.info-panel:after{content:"";position:absolute;inset:0;border-radius:12px;pointer-events:none;background-image:repeating-linear-gradient(0deg,rgba(126,233,255,.04) 0,rgba(126,233,255,.04) 1px,transparent 1px,transparent 3px);mix-blend-mode:overlay}.fallback-notice{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(440px,calc(100vw - 48px));padding:24px 28px;border-radius:14px;background:linear-gradient(155deg,#0a6ea82e,#02040adb 70%);border:1px solid var(--cyan-500);box-shadow:0 0 36px #26b6ff59,inset 0 0 24px #26b6ff14;backdrop-filter:var(--hud-blur);-webkit-backdrop-filter:var(--hud-blur);color:var(--cyan-100);text-align:left;opacity:0;transition:opacity .35s ease;pointer-events:none}.fallback-notice.visible{opacity:1;pointer-events:auto}.fallback-notice h2{margin:0 0 6px;font-size:18px;letter-spacing:.16em;text-transform:uppercase;color:var(--warning)}.fallback-notice p{margin:0;font-size:13px;line-height:1.6;color:#e6faffe6}.fallback-notice .dismiss{position:absolute;top:10px;right:12px;background:transparent;border:1px solid var(--cyan-700);color:var(--cyan-300);width:24px;height:24px;border-radius:50%;cursor:pointer;font-size:14px;line-height:1;padding:0}.loading-veil{position:absolute;inset:0;background:var(--bg-deep);display:flex;align-items:center;justify-content:center;color:var(--cyan-300);font-family:JetBrains Mono,ui-monospace,monospace;letter-spacing:.3em;font-size:12px;z-index:100;transition:opacity .6s ease}.loading-veil.hidden{opacity:0;pointer-events:none}.loading-veil:after{content:"";margin-left:12px;width:8px;height:8px;border-radius:50%;background:var(--cyan-500);box-shadow:0 0 12px var(--cyan-500);animation:pulse 1.1s ease-in-out infinite}@keyframes pulse{0%,to{opacity:.3;transform:scale(.85)}50%{opacity:1;transform:scale(1.15)}}