:root{color:#fff;font-synthesis:none;text-rendering:optimizelegibility;--glass:#161c1f8c;--line:#fff3;background:#101213;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0}button,input,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer;color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible{outline-offset:5px;outline:2px solid #fff}button:disabled{opacity:.5;cursor:wait}.experience{isolation:isolate;background:#24272b;height:100svh;min-height:100svh;position:relative;overflow:hidden}.photo-surface{z-index:-3;width:100%;height:100%;position:absolute;inset:0}.top-shade,.bottom-shade{pointer-events:none;z-index:-2;position:absolute;left:0;right:0}.top-shade{background:linear-gradient(#05151f55,#0000);height:35%;top:0}.bottom-shade{background:linear-gradient(#0000,#060c1270);height:42%;bottom:0}.topbar{justify-content:space-between;align-items:center;gap:25px;padding:32px 4%;display:flex;position:absolute;top:0;left:0;right:0}.wordmark{letter-spacing:-1.5px;align-items:baseline;font-size:29px;font-weight:650;display:flex}.wordmark span{color:#ffffffad;font-weight:350}.wordmark i{background:#fff;border-radius:50%;width:5px;height:5px;margin-left:7px}.edition{letter-spacing:2px;color:#ffffffc2;font-size:12px}.intro{text-shadow:0 2px 25px #00162425;pointer-events:none;position:absolute;top:25%;left:6%}.eyebrow{letter-spacing:3px;color:#ffffffb0;font-size:12px}.intro h1{letter-spacing:-2px;margin:22px 0;font-size:clamp(35px,4.2vw,65px);font-weight:400;line-height:1.23}.intro p{color:#ffffffe0;font-size:16px;line-height:1.8}.bottom-ui{left:50%;bottom:max(24px,env(safe-area-inset-bottom));width:min(670px,100% - 48px);position:absolute;transform:translate(-50%)}.caption{letter-spacing:2px;color:#ffffffbf;justify-content:space-between;margin:0 5px 16px;font-size:12px;display:flex}.control-bar{background:var(--glass);border:1px solid var(--line);-webkit-backdrop-filter:blur(28px);border-radius:20px;align-items:center;gap:18px;padding:16px 20px;display:flex;box-shadow:0 10px 50px #0510151a}.control-bar button{white-space:nowrap;background:#ffffff13;border:1px solid #ffffff20;border-radius:12px;min-height:44px;padding:12px 16px;font-size:14px}.control-bar button:hover{background:#ffffff26}.control-bar input[type=range]{accent-color:#fff;cursor:ew-resize;flex:1;min-width:60px}.control-hint{white-space:nowrap;font-size:14px}.footer-note{color:#ffffffac;justify-content:space-between;gap:18px;margin-top:14px;font-size:12px;display:flex}.surface-status{border:1px solid var(--line);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);background:#10181dbf;border-radius:16px;max-width:85vw;padding:16px 22px;font-size:14px;line-height:1.8;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}@media (width<=650px){.topbar{padding:22px 6%;padding-top:max(22px,env(safe-area-inset-top))}.wordmark{font-size:27px}.edition{letter-spacing:1px;font-size:12px}.intro{top:24%;left:8%}.intro h1{letter-spacing:-1px;font-size:38px}.intro p{max-width:270px;font-size:14px}.eyebrow{letter-spacing:2px;font-size:12px}.bottom-ui{width:calc(100% - 32px);bottom:max(18px,env(safe-area-inset-bottom))}.caption{letter-spacing:1px;font-size:12px}.control-bar{border-radius:18px;gap:12px;padding:13px}.control-hint{display:none}.footer-note{gap:10px;font-size:12px;line-height:1.7}.control-bar button{padding:11px 13px;font-size:14px}}.topbar .edition{margin-left:auto}.quiet-button{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffff13;border:1px solid #ffffff24;border-radius:24px;align-items:center;gap:8px;min-height:44px;padding:11px 16px;font-size:14px;display:flex}.quiet-button:hover{background:#ffffff26}.control-bar{flex-wrap:wrap;gap:9px;padding:12px}.control-bar button{flex:1;justify-content:center;align-items:center;gap:9px;display:flex}.control-bar .upload-button{color:#22292d;background:#f5f5f3;border-color:#fff}.control-bar .upload-button:hover{background:#fff}.control-bar .enabled{background:#e4f5d930;border-color:#d9ffc759}.tilt-control{color:#fffa;flex-basis:100%;align-items:center;gap:12px;min-height:32px;padding:0 10px;display:flex}.tilt-control input{width:100%;height:28px}.tilt-control>span{font-size:16px}.status-line{text-align:center;color:#ffffffd0;min-height:38px;margin:12px 5px 0;font-size:12px;line-height:1.7}.footer-note{align-items:center;margin:0 5px}.text-button{color:inherit;background:0 0;border:0;padding:4px 0;font-size:12px}.file-input{display:none}.intro{transition:opacity .8s,transform .8s}.explored .intro{opacity:0;transform:translateY(-8px)}.topbar,.bottom-ui,.top-shade,.bottom-shade{transition:opacity .3s}.immersive .topbar,.immersive .bottom-ui{opacity:0;visibility:hidden;pointer-events:none}.immersive .top-shade,.immersive .bottom-shade{opacity:0}.restore-ui{bottom:max(24px,env(safe-area-inset-bottom));opacity:.6;background:#10202750;position:absolute;left:50%;transform:translate(-50%)}.restore-ui:hover,.restore-ui:focus-visible{opacity:1}.drop-overlay{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);pointer-events:none;background:#182933bb;border:2px dashed #fffa;border-radius:20px;place-items:center;font-size:22px;display:grid;position:absolute;inset:16px}.mobile-instruction{display:none}.experience{touch-action:none}.bottom-ui,.topbar{touch-action:manipulation}@media (width<=650px){.topbar{gap:15px}.topbar .edition{display:none}.topbar .quiet-button{margin-left:auto}.quiet-button{padding:10px 14px;font-size:14px}.bottom-ui{bottom:max(16px,env(safe-area-inset-bottom))}.control-bar{gap:7px;padding:10px}.control-bar button{gap:6px;padding:12px 10px;font-size:14px}.reset-button{flex:0!important}.reset-button span{display:none}.intro h1{font-size:42px}.desktop-instruction{display:none}.mobile-instruction{display:block}.footer-note{font-size:12px}.caption{margin-bottom:12px}.status-line{min-height:42px;margin-top:10px;font-size:12px}}@media (height<=500px) and (orientation:landscape){.intro{top:21%}.intro h1{margin:10px 0;font-size:30px}.intro p{display:none}.bottom-ui{width:min(600px,75%);bottom:12px}.topbar{padding:15px 4%}.footer-note,.caption{display:none}.control-bar{padding:8px 12px}.control-bar button{min-height:40px;padding:8px 12px}.tilt-control{flex:1;width:100px;min-width:80px}.status-line{min-height:20px;margin-top:8px;font-size:12px}}.experience{height:100dvh;min-height:100dvh}.topbar>.quiet-button{margin-left:auto}.intro{top:28%}.intro h1{letter-spacing:-1.5px;margin:0 0 15px;font-size:clamp(30px,3.4vw,52px)}.intro p{font-size:16px}.immersive .intro{display:none}.control-bar{box-shadow:0 10px 50px #0510151a}.footer-note{font-size:12px}.bottom-ui{max-width:590px}.experience:fullscreen{width:100vw;height:100dvh}.status-line:empty{display:none}@media (width<=650px){.intro{top:29%}.intro h1{font-size:36px}.intro p{font-size:14px}.footer-note{flex-wrap:wrap;justify-content:center;gap:2px 12px}.status-line{margin-top:9px;font-size:12px}.topbar{padding-top:max(20px,env(safe-area-inset-top))}}@media (prefers-reduced-motion:reduce){.intro,.topbar,.bottom-ui,.top-shade,.bottom-shade{transition:none}}.top-actions{align-items:center;gap:8px;margin-left:auto;display:flex}.language-button{color:#ffffffe0;background:0 0;border:0;border-radius:22px;place-items:center;min-width:44px;min-height:44px;padding:8px;font-size:13px;display:grid}.language-button:hover{background:#ffffff13}.footer-note{margin-top:12px}.topbar{padding-left:max(4%,env(safe-area-inset-left));padding-right:max(4%,env(safe-area-inset-right))}@media (width<=650px){.topbar{padding-left:max(6%,env(safe-area-inset-left));padding-right:max(6%,env(safe-area-inset-right));gap:10px}.top-actions{gap:4px}.top-actions .quiet-button{padding:10px 12px;font-size:13px}.top-actions .quiet-button svg{display:none}.control-bar{grid-template-columns:minmax(0,1fr) minmax(0,1fr) 44px;display:grid}.control-bar button{min-width:0;padding:12px 6px;font-size:13px}.control-bar .reset-button{padding:12px}.tilt-control{grid-column:1/-1;padding:0 5px}.footer-note{margin-top:10px}}@media (width<=380px){.upload-button svg,.sensor-button svg{display:none}}.top-actions{gap:9px}.language-button{-webkit-backdrop-filter:blur(14px);letter-spacing:.03em;color:#ffffffe0;background:#ffffff13;border:1px solid #ffffff24;border-radius:24px;justify-content:center;align-items:center;gap:7px;min-width:74px;padding:10px 13px;font-size:12px;font-weight:500;line-height:1;transition:background .2s,border-color .2s;display:flex}.language-button svg{opacity:.85;width:16px;height:16px}.language-button:hover{background:#ffffff26;border-color:#ffffff40}.language-button:active{background:#ffffff30}.quiet-button{-webkit-backdrop-filter:blur(14px)}@media (width<=380px){.top-actions{gap:6px}.language-button{gap:6px;min-width:66px;padding:10px}.top-actions .quiet-button{padding:10px}.wordmark{font-size:25px}}.footer-links{white-space:nowrap;align-items:center;gap:14px;display:flex}.desktop-mode .intro{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.desktop-mode:not(.immersive) .top-shade,.desktop-mode:not(.immersive) .bottom-shade{opacity:.22}.view-bar{justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;display:flex}.view-switch{-webkit-backdrop-filter:blur(18px);background:#1b2b334d;border:1px solid #ffffff28;border-radius:24px;gap:2px;padding:3px;display:flex}.view-switch button{color:#ffffffe0;background:0 0;border:0;border-radius:20px;min-height:38px;padding:9px 16px;font-size:13px}.view-switch button[aria-pressed=true]{color:#263739;background:#eaf0e7}.demo-button{-webkit-backdrop-filter:blur(18px);background:#1b2b334d;border:1px solid #ffffff28;border-radius:24px;align-items:center;gap:8px;min-height:44px;padding:10px 16px;font-size:13px;display:flex}.demo-button:hover{background:#ffffff25}.demo-button>span{font-size:18px;line-height:1}.wordmark{text-shadow:0 2px 15px #12242d20}@media (width<=650px){.view-switch button{padding:8px 12px}.demo-button{padding:9px 13px}.view-bar{margin-bottom:8px}}@media (height<=500px) and (orientation:landscape){.bottom-ui{grid-template-columns:auto 1fr;align-items:center;gap:10px;width:calc(100% - 36px);max-width:760px;display:grid}.view-bar{gap:7px;margin:0}.view-switch button{padding:8px 10px}.demo-button{padding:10px 13px;font-size:0}.demo-button>span{font-size:18px}.bottom-ui .status-line{grid-column:1/-1;margin:0}.bottom-ui .control-bar{flex-wrap:nowrap}.tilt-control{width:60px;min-width:50px}}