:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#171916;font-synthesis:none;text-rendering:optimizelegibility;--ink:#171916;--muted:#696b65;--line:#d8d4ca;--paper:#fbfaf6;--accent:#c5ff4a;--accent-deep:#86b51f;--radius:22px;background:#f2efe8;font-family:Inter,SF Pro Display,PingFang SC,Microsoft YaHei,system-ui,sans-serif}*{box-sizing:border-box}html{background:radial-gradient(circle at 8% 2%,#c5ff4a26,#0000 25rem),#f2efe8;min-width:320px;min-height:100%}body{min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible{outline-offset:3px;outline:3px solid #86b51f61}svg{display:block}#app{width:min(1510px,100% - 56px);margin:0 auto;padding:22px 0 18px}.site-header,.site-footer{justify-content:space-between;align-items:center;display:flex}.site-header{min-height:58px;margin-bottom:18px}.brand{color:var(--ink);align-items:center;gap:12px;text-decoration:none;display:inline-flex}.brand-mark{background:var(--ink);width:42px;height:42px;color:var(--accent);border-radius:13px;place-items:center;display:grid}.brand-mark svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8px;width:29px}.brand strong,.brand small{display:block}.brand strong{letter-spacing:.14em;font-size:15px}.brand small{color:#7e8079;letter-spacing:.22em;margin-top:2px;font-size:9px;font-weight:700}.privacy-pill{color:#545650;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fbfaf6a8;border:1px solid #d8d5cc;border-radius:999px;align-items:center;gap:9px;padding:9px 13px;font-size:12px;font-weight:600;display:inline-flex}.privacy-dot{background:#87bb1e;border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 4px #87bb1e21}.workspace{grid-template-columns:minmax(0,1.75fr) minmax(330px,.75fr);align-items:stretch;gap:18px;display:grid}.viewer-card,.control-panel{border-radius:var(--radius);border:1px solid #282b261a;box-shadow:0 20px 54px #26272114}.viewer-card{color:#fff;background:#171917;min-width:0;overflow:hidden}.viewer-topbar{background:#20231f;border-bottom:1px solid #ffffff14;justify-content:space-between;align-items:center;min-height:56px;padding:0 18px;display:flex}.tracking-badge,.viewer-metrics{align-items:center;display:flex}.tracking-badge{color:#d8dcd4;letter-spacing:.02em;gap:9px;font-size:12px;font-weight:700}.tracking-dot{background:#8c9188;border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 4px #8c91881f}.tracking-badge[data-state=active] .tracking-dot{background:var(--accent);animation:1.8s ease-in-out infinite pulse;box-shadow:0 0 0 4px #c5ff4a1f}.tracking-badge[data-state=warning] .tracking-dot{background:#ffc45b;box-shadow:0 0 0 4px #ffc45b1f}.tracking-badge[data-state=error] .tracking-dot{background:#ff766f;box-shadow:0 0 0 4px #ff766f1f}@keyframes pulse{50%{opacity:.7;transform:scale(.72)}}.viewer-metrics{color:#9ca199;letter-spacing:.05em;text-transform:uppercase;gap:11px;font-family:SFMono-Regular,Consolas,monospace;font-size:10px}.metric-divider{background:#ffffff29;width:1px;height:13px}.stage{aspect-ratio:4/3;isolation:isolate;background:radial-gradient(circle at 50% 44%,#5a65563d,#0000 31%),linear-gradient(135deg,#2d312c,#1d201d 68%);place-items:center;min-height:420px;display:grid;position:relative;overflow:hidden}.stage:before{z-index:-1;content:"";background-image:linear-gradient(#ffffff06 1px,#0000 1px),linear-gradient(90deg,#ffffff06 1px,#0000 1px);background-size:44px 44px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000,#0000 88%);mask-image:linear-gradient(#000,#0000 88%)}#cameraVideo{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}#outputCanvas{z-index:1;object-fit:contain;width:100%;height:100%;position:absolute;inset:0}.empty-state{z-index:2;text-align:center;flex-direction:column;align-items:center;width:min(86%,640px);transition:opacity .22s,visibility .22s;display:flex;position:relative}.stage:not([data-state=empty]) .empty-state{visibility:hidden;opacity:0;pointer-events:none}.face-guide{color:#c5ff4ad1;width:132px;height:152px;margin-bottom:14px;position:relative}.face-guide>svg{fill:none;stroke:#ffffff2e;stroke-linecap:round;stroke-linejoin:round;stroke-width:2px;width:100%;height:100%}.face-guide>svg path:nth-child(n+2){stroke:#c5ff4aa3}.corner{z-index:1;border-style:solid;border-color:currentColor;width:26px;height:26px;position:absolute}.corner-tl{border-width:2px 0 0 2px;border-radius:8px 0 0;top:-5px;left:-13px}.corner-tr{border-width:2px 2px 0 0;border-radius:0 8px 0 0;top:-5px;right:-13px}.corner-bl{border-width:0 0 2px 2px;border-radius:0 0 0 8px;bottom:-5px;left:-13px}.corner-br{border-width:0 2px 2px 0;border-radius:0 0 8px;bottom:-5px;right:-13px}.empty-kicker{color:var(--accent);letter-spacing:.22em;text-transform:uppercase;margin:0 0 8px;font-size:10px;font-weight:800}.empty-state h1{letter-spacing:-.055em;margin:0;font-size:clamp(29px,4.1vw,52px);font-weight:650;line-height:1.06}.empty-state>p:not(.empty-kicker){color:#aeb3aa;margin:14px 0 21px;font-size:13px}.empty-actions{gap:10px;display:flex}.stage-overlay{z-index:5;visibility:hidden;opacity:0;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#121412d6;flex-direction:column;justify-content:center;align-items:center;transition:opacity .18s,visibility .18s;display:flex;position:absolute;inset:0}.stage-overlay.is-visible{visibility:visible;opacity:1}.stage-overlay strong{margin-top:16px;font-size:15px}.stage-overlay 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svg{fill:none;width:14px;stroke:var(--accent);stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8px}.viewer-actions{background:#20231f;justify-content:space-between;align-items:center;gap:16px;min-height:72px;padding:12px 14px;display:flex}.action-group{gap:9px;display:flex}.button,.icon-button,.text-button,.mask-card{cursor:pointer;border:0}.button{border-radius:12px;justify-content:center;align-items:center;gap:9px;min-height:44px;padding:0 17px;font-size:12px;font-weight:750;transition:transform .15s,background .15s,color .15s;display:inline-flex}.button:hover:not(:disabled),.icon-button:hover:not(:disabled){transform:translateY(-1px)}.button svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7px;width:18px}.button-primary{background:var(--accent);color:#171916}.button-ghost{color:#fff;background:#ffffff0f;border:1px solid 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13px}.stage{aspect-ratio:3/4;width:100%;min-height:0}.empty-state{width:90%}.face-guide{width:112px;height:132px;margin-bottom:10px}.empty-state h1{font-size:32px}.stage-hint{bottom:10px;right:10px}.viewer-actions{min-height:70px;padding:11px;position:relative}.viewer-actions .button{min-width:44px;padding:0 12px}.viewer-actions .button span{display:none}.control-panel{padding:25px 16px 30px}.mask-list{scroll-snap-type:x mandatory;scrollbar-width:none;margin-right:-16px;padding-right:16px;display:flex;overflow-x:auto}.mask-list::-webkit-scrollbar{display:none}.mask-card{scroll-snap-align:start;min-width:242px}.fit-panel{display:block}.site-footer{display:none}}@media (width<=380px){.privacy-pill{max-width:134px}.privacy-dot{display:none}.button{padding-left:12px;padding-right:12px}.action-group{gap:6px}.icon-button{width:44px}}@media 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