:root{color:#17211d;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--bg:#fff;--surface:#f7f9f8;--surface-raised:#fff;--text:#17211d;--muted:#5d6b65;--dim:#8a9691;--line:#e3e9e6;--line-strong:#cfd8d4;--accent:#d9272e;--accent-deep:#b71f25;--accent-soft:#fff0f1;--success:#118a55;--success-soft:#eaf8f1;--warning:#9a6400;--warning-soft:#fff6df;--danger:#c62828;background:#f1f4f3;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{background:#f1f4f3;min-width:320px;min-height:100%}body{overscroll-behavior-y:none;background:#f1f4f3;min-width:320px;min-height:100%;margin:0}button,input{font:inherit}button{-webkit-tap-highlight-color:transparent}button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.app-shell{width:min(100%,520px);min-height:100dvh;padding:env(safe-area-inset-top) 0 calc(16px + env(safe-area-inset-bottom));background:var(--bg);margin:0 auto;position:relative;overflow:hidden;box-shadow:0 14px 48px #182d241a}.app-header{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;min-height:86px;padding:16px 22px 14px;display:flex}.app-header h1{letter-spacing:-.03em;margin:0;font-size:clamp(21px,5.8vw,28px);font-weight:620}.app-header p{color:var(--muted);letter-spacing:.02em;align-items:center;gap:7px;margin:7px 0 0;font-size:13px;display:flex}.status-dot{background:var(--dim);border-radius:50%;width:6px;height:6px}.status-dot.is-live{background:var(--success);animation:1.8s ease-in-out infinite status-pulse;box-shadow:0 0 0 5px #118a551a}.engine-mark{border:1px solid var(--line);min-width:58px;height:46px;color:var(--accent);background:var(--accent-soft);letter-spacing:.03em;border-radius:14px;place-items:center;padding:0 10px;font-size:11px;font-weight:650;display:grid}.scanner-viewport{border-bottom:1px solid var(--line);background-color:#f8faf9;background-image:linear-gradient(#d9272e09 1px,#0000 1px),linear-gradient(90deg,#d9272e09 1px,#0000 1px);background-size:28px 28px;height:clamp(340px,48dvh,510px);min-height:340px;position:relative;overflow:hidden}.camera-feed,.image-preview{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.camera-feed{transform:scale(var(--camera-zoom,1));transition:transform .18s}.image-preview{z-index:1}.scan-overlay{z-index:2;pointer-events:none;opacity:0;place-items:center;transition:opacity .18s;display:grid;position:absolute;inset:0}.scan-overlay.is-active{opacity:1}.scan-target{--scan-target-size:min(70vw, 330px);width:var(--scan-target-size);aspect-ratio:1;position:relative;box-shadow:0 0 0 999px #0407094f}.scan-overlay.has-stop-action .scan-target{transform:translateY(-30px)}.target-corner{border-color:var(--accent);filter:drop-shadow(0 0 4px #d9272e2e);border-style:solid;width:42px;height:42px;position:absolute}.target-corner.top-left{border-width:3px 0 0 3px;border-radius:15px 0 0;top:0;left:0}.target-corner.top-right{border-width:3px 3px 0 0;border-radius:0 15px 0 0;top:0;right:0}.target-corner.bottom-left{border-width:0 0 3px 3px;border-radius:0 0 0 15px;bottom:0;left:0}.target-corner.bottom-right{border-width:0 3px 3px 0;border-radius:0 0 15px;bottom:0;right:0}.scan-line{background:var(--accent);height:1px;animation:2.2s ease-in-out infinite alternate scan-sweep;position:absolute;top:12px;left:12px;right:12px;box-shadow:0 0 8px #d9272e6b}.viewport-status{z-index:4;border:1px solid var(--line-strong);color:var(--text);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#fffffff0;border-radius:9px;padding:8px 12px;font-size:13px;position:absolute;top:18px;left:50%;transform:translate(-50%);box-shadow:0 4px 18px #182d241f}.camera-gate{z-index:5;text-align:center;background:#fffffff7;flex-direction:column;justify-content:center;align-items:center;padding:28px 30px;display:flex;position:absolute;inset:0}.gate-icon{width:54px;height:54px;color:var(--accent);background:var(--accent-soft);border:1px solid #f3c5c8;border-radius:17px;place-items:center;margin-bottom:18px;display:grid}.camera-gate h2{margin:0;font-size:22px;font-weight:600}.camera-gate p{max-width:340px;color:var(--muted);margin:11px 0 23px;font-size:14px;line-height:1.65}.primary-button,.secondary-button,.scan-stop-button{cursor:pointer;border-radius:13px;justify-content:center;align-items:center;gap:9px;min-height:50px;display:inline-flex}.primary-button{color:#fff;background:var(--accent);border:0;width:min(100%,300px);padding:0 22px;font-weight:700;box-shadow:0 8px 24px #d9272e33}.primary-button:disabled,.secondary-button:disabled{cursor:wait;opacity:.58}.secondary-button{border:1px solid var(--accent);color:var(--accent);background:var(--accent-soft);font-weight:650}.photo-action-button{width:min(100%,300px);margin-top:12px;padding:0 22px}.scan-stop-button{z-index:4;color:#fff;background:var(--accent);border:0;min-width:128px;padding:0 18px;font-weight:700;position:absolute;bottom:16px;right:16px;box-shadow:0 8px 24px #d9272e4d}.scanner-controls{border-bottom:1px solid var(--line);background:var(--bg)}.scan-instruction{color:var(--text);text-align:center;margin:0;padding:15px 20px 5px;font-size:14px}.control-row{grid-template-columns:repeat(3,1fr);padding:8px 14px 13px;display:grid}.control-button{border:0;border-right:1px solid var(--line);min-width:0;min-height:94px;color:var(--text);cursor:pointer;background:0 0;flex-direction:column;justify-content:center;align-items:center;gap:4px;display:flex}.control-button:last-child{border-right:0}.control-button:disabled{color:var(--dim);cursor:not-allowed}.control-icon{border:1px solid var(--line-strong);width:46px;height:46px;color:inherit;background:#f8faf9;border-radius:50%;place-items:center;margin-bottom:2px;transition:color .16s,border-color .16s,background .16s;display:grid}.control-button.is-active .control-icon{color:var(--accent);background:var(--accent-soft);border-color:#ed9da1}.control-button strong{font-size:13px;font-weight:550}.control-button small{max-width:100%;color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:10px;overflow:hidden}.control-button:disabled small{color:var(--dim)}.zoom-panel{max-height:0;color:var(--muted);opacity:0;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:0 25px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;transition:max-height .18s,padding .18s,opacity .18s;display:grid;overflow:hidden}.zoom-panel.is-open{opacity:1;max-height:64px;padding-top:6px;padding-bottom:15px}.zoom-panel input{width:100%;accent-color:var(--accent)}.scan-guidance{border:1px solid var(--line);background:var(--surface);border-radius:14px;grid-template-columns:repeat(3,1fr);min-height:78px;margin:12px 12px 0;display:grid;overflow:hidden}.scan-guidance>div{border-right:1px solid var(--line);flex-direction:column;justify-content:center;align-items:center;gap:7px;display:flex}.scan-guidance>div:last-child{border-right:0}.scan-guidance strong{color:#fff;background:var(--accent);border-radius:50%;place-items:center;width:24px;height:24px;font-size:12px;display:grid}.scan-guidance span{color:var(--muted);font-size:11px}.privacy-note{min-height:49px;color:var(--dim);background:#fff;justify-content:center;align-items:center;gap:7px;padding:8px 15px 0;font-size:11px;display:flex}.result-sheet{z-index:20;max-height:min(88dvh,820px);padding:9px 20px calc(16px + env(safe-area-inset-bottom));border:1px solid var(--line-strong);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffffffc;border-bottom:0;border-radius:24px 24px 0 0;animation:.24s ease-out both sheet-enter;position:fixed;bottom:0;left:max(0px,50vw - 260px);right:max(0px,50vw - 260px);overflow-y:auto;box-shadow:0 -20px 60px #182d2429}.sheet-handle{background:#d7dfdb;border-radius:2px;width:38px;height:4px;margin:0 auto 18px}.success-title{color:var(--success);justify-content:center;align-items:center;gap:10px;display:flex}.success-title span{color:#fff;background:var(--success);border-radius:50%;place-items:center;width:40px;height:40px;display:grid}.success-title h2{margin:0;font-size:23px;font-weight:640}.result-value{color:var(--text);text-align:center;text-overflow:ellipsis;overflow-wrap:anywhere;margin:5px 0 10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:clamp(21px,6vw,30px);line-height:1.3;display:block;overflow:hidden}.result-value-label,.result-time{color:var(--muted);text-align:center;font-size:11px;display:block}.result-time{border-bottom:1px solid var(--line);padding-bottom:13px}.code-info-card{border:1px solid var(--line);background:var(--surface);border-radius:16px;margin:8px 0 14px;padding:14px}.code-info-card.is-loading,.code-info-card.is-error,.code-info-card.is-empty{align-items:center;gap:12px;min-height:82px;display:flex}.code-info-card.is-loading h3,.code-info-card.is-error h3,.code-info-card.is-empty h3,.code-info-heading h3{margin:0;font-size:14px;font-weight:650}.code-info-card.is-loading p,.code-info-card.is-error p,.code-info-card.is-empty p{color:var(--muted);margin:5px 0 0;font-size:11px;line-height:1.5}.code-info-card.is-error>div,.code-info-card.is-empty>div{flex:1;min-width:0}.code-info-card.is-error button,.code-info-card.is-empty button{border:1px solid var(--line-strong);min-height:38px;color:var(--text);background:var(--surface-raised);cursor:pointer;border-radius:10px;flex:none;padding:0 12px;font-size:11px}.lookup-spinner{border:2px solid #f4c7ca;border-top-color:var(--accent);border-radius:50%;flex:none;width:23px;height:23px;animation:.8s linear infinite lookup-spin}.code-info-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:14px;padding-bottom:12px;display:flex}.code-info-heading span{color:var(--accent);letter-spacing:.12em;text-transform:uppercase;margin-bottom:3px;font-size:9px;font-weight:700;display:block}.code-status{white-space:nowrap;border-radius:999px;flex:none;padding:6px 9px;font-size:11px;font-weight:650}.code-status.status-used,.code-status.status-ok{color:var(--success);background:var(--success-soft)}.code-status.status-unused{color:var(--warning);background:var(--warning-soft)}.code-status.status-unknown{color:var(--muted);background:#edf1ef}.detail-group{padding-top:12px}.detail-group h4{color:var(--dim);letter-spacing:.06em;margin:0 0 7px;font-size:10px;font-weight:650}.detail-group dl{margin:0}.detail-group dl>div{border-bottom:1px solid var(--line);grid-template-columns:104px minmax(0,1fr);align-items:start;gap:9px;min-height:31px;padding:6px 0;display:grid}.detail-group dt,.detail-group dd{margin:0;font-size:11px;line-height:1.55}.detail-group dt{color:var(--muted)}.detail-group dd{color:var(--text);overflow-wrap:anywhere;text-align:right}.detail-group dd.is-empty-value{color:var(--dim)}.result-action{width:100%;margin-top:10px}.history-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:end;min-height:42px;display:flex}.history-heading h3{margin:0 0 9px;font-size:13px;font-weight:600}.history-heading button{min-height:40px;color:var(--muted);cursor:pointer;background:0 0;border:0;padding:0 2px;font-size:11px}.history-row{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:14px;min-height:44px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;display:grid}.history-row span{text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.history-row time{color:var(--muted);font-size:10px}.empty-history{color:var(--dim);text-align:center;margin:18px 0 4px;font-size:12px}.screen-reader-only{clip:rect(0 0 0 0)!important;clip-path:inset(50%)!important;white-space:nowrap!important;width:1px!important;height:1px!important;position:absolute!important;overflow:hidden!important}@keyframes scan-sweep{0%{transform:translateY(0)}to{transform:translateY(calc(var(--scan-target-size) - 26px))}}@keyframes status-pulse{0%,to{opacity:1}50%{opacity:.52}}@keyframes sheet-enter{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@keyframes lookup-spin{to{transform:rotate(360deg)}}@media (height<=730px){.app-header{min-height:76px;padding-top:12px;padding-bottom:10px}.scanner-viewport{height:330px;min-height:330px}.scan-overlay.has-stop-action .scan-target{--scan-target-size:min(58vw, 250px);transform:translateY(-28px)}.control-button{min-height:84px}.scan-guidance{min-height:76px}}@media (width>=700px){body{padding:24px 0}.app-shell{border:1px solid var(--line);border-radius:24px;min-height:calc(100dvh - 48px)}.result-sheet{border-bottom:1px solid var(--line-strong);border-radius:24px;bottom:24px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}