*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{height:100%;background:#000;overscroll-behavior:none}body{font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,PingFang TC,Noto Sans TC,system-ui,sans-serif;color:#fff;position:fixed;inset:0;overflow:hidden;touch-action:manipulation;user-select:none;-webkit-user-select:none}button{font-family:inherit;color:inherit;background:none;border:none;cursor:pointer;touch-action:manipulation}#app{height:100%;position:relative}section{position:absolute;inset:0;display:flex;flex-direction:column}[hidden]{display:none!important}.chip{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;background:#0000008c;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);font-size:13px;font-weight:600;letter-spacing:.02em}.round-btn{width:44px;height:44px;border-radius:50%;background:#ffffff24;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:grid;place-items:center;font-size:20px;transition:transform .12s ease,background .2s}.round-btn:active{transform:scale(.9);background:#ffffff47}#camera-screen{background:#000}#video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform:scaleX(var(--mirror, 1)) scale(var(--digital-zoom, 1));transform-origin:center;transition:transform .25s ease}#overlay{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.grid-line{stroke:#ffffff59;stroke-width:1}.horizon-line{stroke:#ffd60ae6;stroke-width:2;stroke-dasharray:10 8;animation:march 1.2s linear infinite}.detected-box{fill:#ffffff0f;stroke:#ffffff73;stroke-width:1.5}.target-box{fill:#ffffff08;stroke:#fff;stroke-width:2.5;stroke-dasharray:12 8;stroke-linecap:round;animation:march 1s linear infinite;filter:drop-shadow(0 0 3px rgba(0,0,0,.6))}.target-box.matched{stroke:#34d399;fill:#34d39914;filter:drop-shadow(0 0 6px rgba(52,211,153,.8))}.guide-label{fill:#fff;font-size:12px;font-weight:600;paint-order:stroke;stroke:#000000b3;stroke-width:3px}.move-line{stroke:#ffd60ad9;stroke-width:2;stroke-dasharray:4 6;stroke-linecap:round}.move-arrow{fill:#ffd60af2}@keyframes march{to{stroke-dashoffset:-20}}#focus-box{position:absolute;width:80px;height:80px;border:1.5px solid #ffd60a;border-radius:4px;transform:translate(-50%,-50%);animation:focus-pop .25s ease-out;pointer-events:none}@keyframes focus-pop{0%{scale:1.4;opacity:.4}to{scale:1;opacity:1}}#countdown{position:absolute;inset:0;display:grid;place-items:center;font-size:120px;font-weight:200;color:#fff;text-shadow:0 0 30px 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