:root{--ink:#17333c;--muted:#64777b;--paper:#f3f5f2;--line:#dce4df;--teal:#147d70;--mint:#9de0c9;--dark:#102a35;--amber:#9d6226;--red:#ad4540;--radius:20px}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;font-size:15px;line-height:1.65}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer;border:0;transition:background .15s,transform .15s}button:disabled{opacity:.45;cursor:not-allowed}button:not(:disabled):active{transform:translateY(1px)}a{color:var(--teal)}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #72bba9;outline-offset:4px}input:focus,select:focus{outline:2px solid #74b9a5;outline-offset:1px}input:invalid{border-color:var(--red)}[hidden]{display:none!important}.topbar{height:88px;display:flex;align-items:center;justify-content:space-between;max-width:1280px;margin:auto;padding:0 44px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);font-size:19px;font-weight:750;letter-spacing:.02em}.brand-icon{font-size:40px;line-height:1;color:var(--teal)}.brand small{display:block;font-size:9px;letter-spacing:.21em;color:var(--muted);font-weight:600;line-height:1.7}.version{font-size:12px;color:var(--muted)}.version b{margin-left:10px;padding:5px 9px;border:1px solid var(--line);border-radius:5px}main{max-width:1280px;margin:auto;padding:0 44px}.intro{display:flex;justify-content:space-between;align-items:center;padding:45px 0 30px;gap:24px}.eyebrow{font-size:11px;font-weight:750;letter-spacing:.17em;color:var(--teal)}h1{font-size:38px;line-height:1.3;font-weight:650;letter-spacing:-.025em;margin:9px 0 13px}h2{font-size:19px;line-height:1.45;margin:0 0 10px;font-weight:650}p{color:var(--muted);margin:9px 0 18px}.intro p{margin:0;font-size:14px}.privacy{font-size:12px;text-align:right;white-space:nowrap}.privacy small{display:block;color:var(--muted);font-size:11px}.dot{display:inline-block;width:7px;height:7px;background:var(--teal);border-radius:50%;margin-right:7px}.tabs{display:flex;gap:10px;border-bottom:1px solid var(--line);margin-bottom:27px}.tabs button{border-radius:9px 9px 0 0;padding:14px 23px;background:transparent;color:var(--muted);font-size:11px;border-bottom:3px solid transparent;display:flex;align-items:center;gap:10px}.tabs button span{font-size:14px;font-weight:650}.tabs button.active{background:#e5ede7;border-bottom-color:var(--teal);color:var(--teal)}.tabs b{font-size:10px;min-width:19px;border-radius:10px;background:#dce6df;padding:0 5px}.workspace{display:grid;grid-template-columns:minmax(0,1.42fr) minmax(300px,1fr);gap:24px;align-items:start}.camera-card{background:var(--dark);border-radius:var(--radius);overflow:hidden;color:#eaf5ef;box-shadow:0 10px 35px #102a3508}.camera-toolbar{display:flex;justify-content:space-between;padding:16px 21px;color:#afc1c4;font-size:11px;letter-spacing:.04em}.camera-toolbar i{display:inline-block;width:6px;height:6px;border-radius:50%;background:#6b7e85;margin-right:8px}.camera-toolbar i.on{background:var(--mint);box-shadow:0 0 10px #9de0c955}.viewfinder{aspect-ratio:4/3;width:100%;position:relative;overflow:hidden;background:#0a1e28}.viewfinder video,.viewfinder canvas{position:absolute;width:100%;height:100%;inset:0;object-fit:contain}.viewfinder.mirrored video,.viewfinder.mirrored canvas{transform:scaleX(-1)}.camera-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;text-align:center;background:radial-gradient(ellipse at 50% 45%,#1b3e46,transparent 75%)}.camera-placeholder h2{font-size:19px;margin:19px 0 0}.camera-placeholder p{font-size:12px;color:#a5b9bc;line-height:1.9}.focus-frame{width:119px;height:119px;border:1px solid #527b7e;border-radius:35%;display:grid;place-items:center;position:relative}.focus-frame:after{content:"";position:absolute;inset:12px;border:1px dashed #527b7e;border-radius:50%}.focus-frame span{font-size:60px;color:#8ab9b4;font-weight:200;line-height:1}.camera-caption{position:absolute;bottom:15px;left:16px;right:16px;font-size:10px;color:#d3e8e7;text-align:center;text-shadow:0 1px 5px #000}.camera-controls{padding:17px 20px;display:flex;gap:9px}.camera-controls select{background:#203d47;color:#fff;border-color:#35545c;flex:1;min-width:0}.primary,.secondary{border-radius:9px;padding:10px 17px;font-size:13px;font-weight:650;min-height:43px}.primary{background:var(--teal);color:#fff}.primary:hover:not(:disabled){background:#09695e}.camera-controls .primary{background:var(--mint);color:var(--dark)}.secondary{background:#edf1ed;color:var(--ink);border:1px solid var(--line)}.camera-controls .secondary{background:transparent;color:#dfefea;border-color:#35545c}.full{display:block;width:100%;margin-top:12px}.signal-row{padding:4px 20px 20px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;font-size:10px;color:#9eb8bd}.signal-row strong{display:block;font-size:13px;color:#eff9f4;letter-spacing:.02em;font-weight:500;margin-top:3px;font-variant-numeric:tabular-nums}.measurement-column{display:grid;gap:18px}.distance-card{padding:27px 28px 24px;background:#e4ece4;border-radius:var(--radius);border:1px solid #d6e2d6}.section-label{display:flex;align-items:center;justify-content:space-between;font-size:12px;font-weight:600;gap:8px}.tag{display:inline-block;white-space:nowrap;font-size:10px;background:#fff9;border:1px solid #cbd8ca;border-radius:5px;padding:3px 7px;color:var(--teal);font-weight:500}.tag.amber{background:#fcf0dc;color:var(--amber);border-color:#e9d4ae}.distance-number{font-size:74px;line-height:1.22;letter-spacing:-.055em;font-weight:500;margin:13px 0 0;font-variant-numeric:tabular-nums}.distance-number small{font-size:18px;margin-left:9px;letter-spacing:0;font-weight:400}.distance-card #distanceStatus{font-size:12px;min-height:20px;color:#416454;margin:6px 0 16px}.meter{height:4px;background:#cad9cb;border-radius:5px;overflow:hidden}.meter div{height:100%;width:0;background:var(--teal);transition:width .25s}.meter-caption{font-size:10px;display:flex;justify-content:space-between;color:#5f7965;margin-top:7px}.quiet{font-size:11px;line-height:1.8;margin:15px 0 0}.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px}.panel-title{display:flex;justify-content:space-between;align-items:center;gap:12px}.panel-title h2{margin:0}.panel p{font-size:13px}.step{font-size:11px;color:var(--muted);letter-spacing:.05em}.inline-input{display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:12px}.inline-input>div{position:relative;width:135px}.inline-input input{width:100%;padding-right:37px}.inline-input span{position:absolute;right:12px;top:11px;font-size:12px;color:var(--muted)}input,select{padding:10px 11px;background:#f7f9f6;border:1px solid var(--line);border-radius:8px;color:var(--ink);min-width:0;font-size:14px;min-height:43px}input:disabled,select:disabled{opacity:.6}.micro{font-size:11px!important;line-height:1.8;color:var(--muted);margin-bottom:0!important}.model-overview{margin-top:24px}.model-stats{display:grid;grid-template-columns:repeat(3,1fr);margin:24px 0 22px;gap:20px}.model-stats>div{border-left:1px solid var(--line);padding-left:22px}.model-stats>div:first-child{border:0;padding-left:0}.model-stats span{font-size:11px;color:var(--muted);display:block}.model-stats strong{font-size:32px;font-weight:500;display:block;margin:5px 0;font-variant-numeric:tabular-nums}.model-stats small{font-size:10px;color:var(--muted);display:block}.guidance{background:#f5f2e9;border-left:3px solid #b7985d;border-radius:0 7px 7px 0;padding:12px 15px;font-size:12px;color:#785e35}.guidance.measured{background:#eaf4ef;border-color:var(--teal);color:#255f51}.range-strip{display:flex;gap:26px;flex-wrap:wrap;margin-top:18px}.range-strip span{font-size:11px;color:var(--muted);margin-right:8px}.range-strip b{font-size:12px;font-weight:600}.range-result{font-size:12px!important;font-weight:600;margin:9px 0 0!important;color:var(--ink)}.text-button{background:transparent;color:var(--teal);font-size:12px;padding:10px 0;text-align:left}.danger{color:var(--red)}.notice{padding:12px 16px;background:#e8eee9;border:1px solid #d5dfd7;border-radius:9px;font-size:12px;color:var(--ink);margin:0 0 20px}.notice.error{background:#fbefeb;border-color:#eccbc3;color:#8b3833}.records-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,1fr);gap:24px;margin-bottom:24px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 14px;margin-top:19px}.field-grid label,.field{display:flex;flex-direction:column;gap:7px;font-size:11px;color:var(--muted)}.field{margin:17px 0}.action-row{display:flex;gap:10px;margin-bottom:17px;flex-wrap:wrap}.summary-number{margin:22px 0}.summary-number span{font-size:58px;font-weight:500;line-height:1;display:block;letter-spacing:-.03em}.summary-number small{font-size:11px;color:var(--muted)}.summary-line{display:flex;justify-content:space-between;gap:15px;font-size:11px;border-top:1px solid var(--line);padding:12px 0}.summary-line b{font-size:13px;font-weight:600}.summary-panel .micro{margin:12px 0}.table-scroll{overflow:auto;margin:18px -5px 0;padding:0 5px}table{border-collapse:collapse;width:100%;white-space:nowrap;font-size:12px}th{text-align:left;font-weight:500;color:var(--muted);font-size:10px}td,th{padding:12px 13px;border-bottom:1px solid var(--line)}td:first-child,th:first-child{padding-left:0}.empty-row{text-align:center;white-space:normal;padding:35px 10px;color:var(--muted)}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}.settings-grid .panel p{margin:12px 0}.formula-box{font-family:ui-monospace,monospace;font-size:11px;background:#f3f6f1;border:1px solid var(--line);padding:12px;border-radius:8px;margin-top:18px;line-height:1.8}.checkbox{display:flex;align-items:center;gap:8px;font-size:12px;margin:18px 0}.checkbox input{min-height:initial;accent-color:var(--teal)}details{border-top:1px solid var(--line);padding:13px 0}details:first-of-type{margin-top:15px}summary{font-size:12px;font-weight:600;cursor:pointer}details p,details li{font-size:12px!important;color:var(--muted)}details ol,details ul{padding-left:20px}details li{margin:9px 0}footer{display:flex;justify-content:space-between;gap:15px;padding:33px 0 25px;font-size:10px;color:#81918c;letter-spacing:.04em}footer b{font-weight:400;margin-left:10px}.tracking-pill{position:absolute;top:13px;left:16px;max-width:calc(100% - 32px);font-size:11px;color:#e4fff5;background:#102a35d9;border:1px solid #4e776a;border-radius:20px;padding:5px 11px;line-height:1.5}.tracking-pill.bad{border-color:#b59157;color:#ffdb9e}.countdown{position:absolute;inset:0;display:grid;place-items:center;background:#102a3566;font-size:44px;color:#fff;text-align:center;line-height:1.5;white-space:pre-line;pointer-events:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.mobile-only{display:none}
@media(min-width:1050px){.camera-card .viewfinder{aspect-ratio:1.22}.calibration{padding-top:23px;padding-bottom:23px}}
@media(max-width:900px){main{padding:0 24px}.topbar{padding:0 24px}.workspace{gap:18px;grid-template-columns:minmax(0,1.2fr) minmax(275px,1fr)}.panel{padding:23px}.distance-card{padding:23px}.camera-controls{flex-wrap:wrap}.camera-controls select{flex-basis:100%}.camera-controls button{flex:1}.signal-row{gap:6px;font-size:9px}.signal-row strong{font-size:12px}.model-stats strong{font-size:27px}.records-layout{grid-template-columns:1fr 310px}}
@media(max-width:700px){.topbar{height:75px;padding:0 20px}main{padding:0 16px}.intro{padding:28px 4px 24px;display:block}.intro h1{font-size:31px}.intro p{font-size:12px}.privacy{display:none}.tabs{gap:0;margin-bottom:19px}.tabs button{flex:1;justify-content:center;padding:13px 4px;gap:6px}.tabs button span{font-size:12px}.tabs button:first-letter{font-size:10px}.workspace{grid-template-columns:1fr}.viewfinder{aspect-ratio:4/3!important;max-height:440px}.camera-toolbar{padding:12px 17px}.camera-controls{flex-wrap:nowrap;padding:13px 16px}.camera-controls select{flex-basis:auto}.camera-controls button{flex:initial;padding:9px 12px}.signal-row{font-size:10px}.signal-row strong{font-size:13px}.measurement-column{grid-template-columns:1fr;gap:16px}.distance-card{padding:22px 24px}.distance-number{font-size:65px;margin:6px 0}.distance-card .quiet{margin-top:11px}.panel{padding:22px}.model-overview{margin-top:18px}.model-stats{grid-template-columns:1fr;gap:16px;margin:20px 0}.model-stats>div{border-left:0;border-bottom:1px solid var(--line);padding:0 0 12px}.model-stats>div:first-child{border-bottom:1px solid var(--line)}.model-stats>div:last-child{border:0;padding-bottom:0}.model-stats strong{font-size:29px;margin:3px 0}.model-stats small{font-size:10px}.range-strip{gap:8px;display:grid}.range-strip>div{display:flex;justify-content:space-between;gap:12px}.records-layout,.settings-grid{grid-template-columns:1fr;gap:18px}.summary-panel .summary-number{margin:16px 0}.field-grid{gap:15px 11px}.field-grid label{font-size:10px}.field-grid input{width:100%}.panel-title{align-items:flex-start}.panel-title .tag{font-size:9px;white-space:normal;text-align:right;max-width:115px}footer{font-size:9px;padding:27px 4px}.version{font-size:10px}.brand{font-size:17px}.brand small{font-size:8px}.brand-icon{font-size:35px}.countdown{font-size:32px}}
.camera-distance{position:absolute;bottom:42px;right:16px;background:#102a35df;color:#e9fff6;padding:6px 12px;border:1px solid #49665f;border-radius:8px;font-size:19px;font-variant-numeric:tabular-nums;pointer-events:none}.diagnostics{margin-top:23px}.diagnostics p{font-size:12px}.tool-link{display:inline-block;margin:8px 0;font-size:13px}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}