:root{--primary-neon: #00f2ff;--secondary-neon: #7000ff;--accent-gold: #ffcc00;--bg-dark: #0a0a12;--glass-bg: rgba(255, 255, 255, .1);--glass-border: rgba(255, 255, 255, .2);--text-main: #e0e0e0;--text-dim: #a0a0a0;--font-hud: "Orbitron", sans-serif;--font-main: "Noto Sans TC", sans-serif;--safe-top: env(safe-area-inset-top);--safe-bottom: env(safe-area-inset-bottom)}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-main);background:var(--bg-dark);color:var(--text-main);overflow:hidden;height:100vh;width:100vw}#app{position:relative;height:100%;width:100%;display:flex;flex-direction:column}.hud-header{position:absolute;top:0;left:0;right:0;padding:calc(var(--safe-top) + 1rem) 1.5rem 1rem;display:flex;justify-content:space-between;z-index:10;pointer-events:none;background:linear-gradient(to bottom,rgba(0,0,0,.8),transparent)}.timer-container,.capacity-container{display:flex;flex-direction:column}.label{font-size:.7rem;text-transform:uppercase;letter-spacing:1px;color:var(--text-dim);margin-bottom:.2rem}.value{font-family:var(--font-hud);font-size:1.4rem;font-weight:700;color:var(--primary-neon);text-shadow:0 0 10px rgba(0,242,255,.5)}.viewport{position:relative;flex:1;background:#000;overflow:hidden;display:flex;align-items:center;justify-content:center}#camera-feed{width:100%;height:100%;object-fit:cover}.viewport-mask{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:2;display:flex;align-items:center;justify-content:center}@media(orientation:portrait){.viewport-mask{background:linear-gradient(#0009,#0009),linear-gradient(#0009,#0009);background-size:100% calc((100% - 80vw)/2),100% calc((100% - 80vw)/2);background-position:top,bottom;background-repeat:no-repeat}.viewport-mask:before,.viewport-mask:after{content:"";position:absolute;top:calc((100% - 80vw)/2);bottom:calc((100% - 80vw)/2);width:10vw;background:#0009}.viewport-mask:before{left:0}.viewport-mask:after{right:0}}.scan-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;display:flex;align-items:center;justify-content:center;z-index:3}.reticle{width:80vw;height:80vw;max-width:300px;max-height:300px;border:1px solid rgba(0,242,255,.5);position:relative}.reticle:before,.reticle:after{content:"";position:absolute;width:20px;height:20px;border:4px solid var(--primary-neon)}.reticle:before{top:-2px;left:-2px;border-right:0;border-bottom:0}.reticle:after{bottom:-2px;right:-2px;border-left:0;border-top:0}.scan-line{position:absolute;top:30%;left:10%;right:10%;height:2px;background:linear-gradient(90deg,transparent,var(--primary-neon),transparent);box-shadow:0 0 15px var(--primary-neon);animation:scan 3s infinite ease-in-out}@keyframes scan{0%,to{top:30%;opacity:0}50%{top:70%;opacity:1}}.capture-btn{position:absolute;bottom:6rem;left:50%;transform:translate(-50%);width:80px;height:80px;border-radius:50%;background:#ffffff1a;border:4px solid #fff;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:5;box-shadow:0 0 20px #fff3}.capture-btn .inner-circle{width:60px;height:60px;background:#fff;border-radius:50%;transition:transform .1s}.capture-btn:active .inner-circle{transform:scale(.9)}.capture-btn .label{position:absolute;top:110%;width:100px;text-align:center;color:#fff;font-weight:700;text-shadow:0 2px 4px rgba(0,0,0,.5)}.backpack-tray{position:absolute;bottom:0;left:0;right:0;background:#0a0a12e6;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid var(--glass-border);border-radius:24px 24px 0 0;transition:transform .3s cubic-bezier(.4,0,.2,1);padding-bottom:var(--safe-bottom);z-index:20}.backpack-tray.collapsed{transform:translateY(calc(100% - 3.5rem - var(--safe-bottom)))}.tray-handle{height:3.5rem;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer}.tray-handle .bar{width:40px;height:4px;background:var(--text-dim);border-radius:2px;margin-bottom:4px}.tray-handle span{font-size:.8rem;font-weight:700;letter-spacing:2px}.backpack-grid{display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(2,1fr);gap:8px;padding:1rem 1rem 2rem;aspect-ratio:5 / 2}.backpack-slot{aspect-ratio:1 / 1;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:4px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:inset 0 0 10px #00000080}.backpack-slot.filled{border-color:var(--primary-neon);background:#00f2ff0d}.backpack-slot .slot-img{width:100%;height:100%;object-fit:cover;opacity:.9}.backpack-slot .slot-label{position:absolute;bottom:0;left:0;right:0;background:#0009;font-size:.5rem;text-align:center;padding:2px 0;color:var(--text-dim);pointer-events:none;white-space:nowrap}.backpack-slot.filled .slot-label{background:#00f2ffcc;color:#000;font-weight:700}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:100;padding:2rem;transition:opacity .3s}.modal.hidden{opacity:0;pointer-events:none}.glass{background:#ffffff0d;-webkit-backdrop-filter:blur(25px);backdrop-filter:blur(25px);border:1px solid rgba(255,255,255,.1);border-radius:32px;width:100%;max-width:400px;padding:2rem;box-shadow:0 8px 32px #000c}.loading-view{display:flex;flex-direction:column;align-items:center;gap:20px}.spinner{width:50px;height:50px;border:3px solid rgba(0,242,255,.1);border-top-color:var(--primary-neon);border-radius:50%;animation:rotate 1s linear infinite}@keyframes rotate{to{transform:rotate(360deg)}}.item-view{animation:fadeIn .5s}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}}.item-header{margin-bottom:1.5rem}#item-name{font-family:var(--font-hud);font-size:1.5rem;color:#fff;margin-bottom:.5rem}.badge{background:var(--secondary-neon);padding:4px 12px;border-radius:20px;font-size:.7rem;font-weight:700;text-transform:uppercase}.item-stats{background:#ffffff0d;padding:1.5rem;border-radius:16px;margin-bottom:1.5rem}.stat .value{display:block;font-size:2rem;color:var(--accent-gold);text-shadow:0 0 15px rgba(255,204,0,.3)}.token-usage{font-size:.6rem;color:var(--text-dim);display:block;margin-top:4px;letter-spacing:.5px}.description{font-size:.9rem;line-height:1.6;color:var(--text-dim);margin-bottom:2rem}.conflict-msg{color:#ff4d4d;font-size:.85rem;margin-bottom:1rem;text-align:center;font-weight:700}.modal-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}.btn{padding:14px;border-radius:12px;border:none;font-weight:700;font-size:1rem;cursor:pointer;transition:filter .2s}.btn:active{filter:brightness(1.2)}.primary{background:var(--primary-neon);color:#000}.secondary{background:#ffffff1a;color:#fff}.hidden{display:none!important}.tutorial-content{text-align:center}.tutorial-step h2{font-family:var(--font-hud);color:var(--primary-neon);margin-bottom:1.5rem}.tutorial-step p{line-height:1.8;margin-bottom:2rem;color:var(--text-main)}.highlight{color:var(--accent-gold);font-weight:700;font-size:1.2rem}.slot-preview{display:grid;grid-template-columns:repeat(5,1fr);gap:15px;justify-items:center;margin:2rem 0;padding:1.5rem;background:#ffffff0d;border-radius:16px}.slot-dot{width:20px;height:20px;border:2px solid var(--primary-neon);border-radius:4px;box-shadow:0 0 10px #00f2ff4d}.category-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:1.5rem;text-align:left}.category-list span{background:#7000ff33;padding:8px 12px;border-radius:8px;font-size:.85rem;border:1px solid rgba(112,0,255,.3)}.hint{font-size:.8rem!important;color:var(--text-dim)!important;margin-top:1rem}