:root{--bg:#f1f5f9;--card:#fff;--ink:#0f172a;--muted:#64748b;--teal:#0d9488;--teal2:#0f766e;--line:#e2e8f0;--soft:#f0fdfa;--warn:#fef3c7;--warnt:#92400e;--dark:#0b1220;--dark-card:#1e293b;--dark-line:#334155;--orange:#e56a1f;--navy:#0f3d5e;color:var(--ink);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans TC,PingFang TC,Microsoft JhengHei,sans-serif;line-height:1.45}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100%}body{background:var(--bg);justify-content:center;width:100%;margin:0;display:flex}#root{justify-content:center;width:100%;min-height:100dvh;display:flex}button{font:inherit;cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}a{color:var(--teal)}body:has(.phone.dark){background:var(--dark)}#root:has(.phone.dark){background:var(--dark)}.phone{background:var(--bg);width:100%;max-width:min(100vw,840px);min-height:100dvh;color:var(--ink);box-sizing:border-box;flex-direction:column;margin-inline:auto;padding:14px 18px 28px;display:flex}@media (width>=640px){.phone{padding:18px 28px 36px}}@media (width>=840px){.phone{padding:22px 36px 40px}}.phone.dark{background:var(--dark);color:#e2e8f0}.top{justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px;display:flex}.logo{align-items:center;gap:7px;font-size:14px;font-weight:700;line-height:0;display:flex}.logo-img{object-fit:contain;flex-shrink:0;width:auto;max-width:168px;height:24px;display:block}.mark{background:linear-gradient(135deg,#e56a1f,#c2410c);border-radius:6px;flex-shrink:0;place-items:center;width:22px;height:22px;display:grid}.mark svg{width:13px;height:13px}.lang{color:var(--teal);border:1px solid var(--line);white-space:nowrap;background:#fff;border-radius:999px;padding:4px 9px;font-size:11px}.phone.dark .lang{color:#5eead4;background:#1e293b;border-color:#334155}.phone-body{flex-direction:column;flex:1;display:flex}.steps{flex-wrap:wrap;gap:6px;margin:6px 0 12px;display:flex}.step{text-align:center;min-width:0;color:var(--muted);border:1px solid var(--line);background:#fff;border-radius:10px;flex:1;padding:6px 4px;font-size:10px}.step .n{margin-bottom:2px;font-size:11px;display:block}.step.on{background:var(--soft);color:var(--teal2);border-color:#99f6e4;font-weight:700}.phone.dark .step{color:#94a3b8;background:#1e293b;border-color:#334155}.phone.dark .step.on{color:#5eead4;background:#134e4a;border-color:#0d9488}h1{letter-spacing:.01em;margin:4px 0 6px;font-size:24px;font-weight:750}.lead{color:var(--muted);margin-bottom:14px;font-size:13px;line-height:1.55}.phone.dark .lead{color:#94a3b8}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;margin-bottom:10px;padding:14px}.phone.dark .card{background:#1e293b;border-color:#334155}.card.selectable{cursor:pointer;transition:border-color .15s,box-shadow .15s}.card.selectable.selected{border-color:var(--teal);background:var(--soft);box-shadow:0 0 0 2px #0d948833}.card.disabled{opacity:.72;cursor:default}.row{align-items:flex-start;gap:12px;display:flex}.icon{background:var(--soft);width:40px;height:40px;color:var(--teal);border-radius:12px;flex-shrink:0;place-items:center;display:grid}.phone.dark .icon{color:#5eead4;background:#134e4a}.icon svg{width:22px;height:22px}.row h2{margin-bottom:3px;font-size:15px;font-weight:700}.row p{color:var(--muted);font-size:12px;line-height:1.45}.phone.dark .row p{color:#94a3b8}.chev{color:var(--teal);align-self:center;margin-left:auto;font-size:18px}.time-badge{color:var(--teal2);background:var(--soft);border-radius:999px;margin-top:6px;padding:4px 10px;font-size:12px;font-weight:700;display:inline-block}.btn{text-align:center;background:var(--teal);color:#fff;border:0;border-radius:14px;width:100%;min-height:48px;margin-top:8px;padding:14px;font-size:15px;font-weight:700;display:block}.btn.ghost{color:var(--teal);border:1.5px solid var(--teal);background:#fff}.phone.dark .btn.ghost{color:#5eead4;background:0 0;border-color:#0d9488}.btn.linkish{color:var(--teal);background:0 0;border:0;padding:10px;font-weight:600}.tip{color:var(--muted);border:1px dashed var(--line);background:#fff;border-radius:12px;margin-top:10px;padding:10px 12px;font-size:11.5px;line-height:1.5}.phone.dark .tip{color:#94a3b8;background:#1e293b;border-color:#334155}.callout{background:var(--warn);color:var(--warnt);border-radius:12px;margin:10px 0;padding:10px 12px;font-size:11.5px;line-height:1.5}.list{list-style:none}.list li{border-top:1px solid var(--line);gap:10px;padding:10px 0;font-size:13px;line-height:1.45;display:flex}.list li:first-child{border-top:0;padding-top:0}.numc{background:var(--teal);color:#fff;border-radius:50%;flex-shrink:0;place-items:center;width:22px;height:22px;font-size:11px;font-weight:700;display:grid}.badge{background:var(--teal);color:#fff;border-radius:999px;padding:8px 16px;font-size:14px;font-weight:700;display:inline-flex}.center{text-align:center}.muted{color:var(--muted);font-size:12px}.footer-note{color:#94a3b8;text-align:center;margin-top:auto;padding-top:12px;font-size:10.5px;line-height:1.45}.pager{color:var(--teal);justify-content:space-between;align-items:center;margin-top:14px;font-size:13px;font-weight:600;display:flex}.dots span{background:#cbd5e1;border-radius:50%;width:7px;height:7px;margin:0 3px;display:inline-block}.dots span.on{background:var(--teal);border-radius:999px;width:16px}table{border-collapse:collapse;width:100%;font-size:13.5px}td{border-top:1px solid var(--line);padding:9px 2px}tr:first-child td{border-top:0}.hz{color:var(--muted)}.pct{text-align:right;color:var(--teal);font-variant-numeric:tabular-nums;font-weight:700}.hold{color:#f8fafc;-webkit-user-select:none;user-select:none;touch-action:none;background:radial-gradient(circle at 35% 30%,#334155,#1e293b 70%);border:3px solid #0d9488;border-radius:50%;place-items:center;width:168px;height:168px;margin:18px auto;font-size:22px;font-weight:750;display:grid;box-shadow:0 0 0 10px #0d948826,0 0 0 22px #0d948812}.hold.pressed{background:radial-gradient(circle at 35% 30%,#0f766e,#134e4a 70%);border-color:#5eead4}.freq{text-align:center;letter-spacing:.04em;margin-top:8px;font-size:28px;font-weight:750}.prog{justify-content:center;gap:6px;margin:12px 0;display:flex}.prog i{background:#334155;border-radius:50%;width:8px;height:8px;display:block}.prog i.on{background:#0d9488}.prog i.done{background:#5eead4}.level-row{align-items:center;gap:10px;margin:10px 0;display:flex}.level-row input[type=range]{accent-color:var(--teal);flex:1}.nav-row{gap:8px;margin-bottom:8px;display:flex}.nav-row .btn{flex:1;margin-top:0;padding:10px;font-size:13px}.select-block{margin:8px 0 12px}.select-block select{border:1px solid var(--line);background:#fff;border-radius:12px;width:100%;padding:12px;font-size:15px}.history-item{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:8px;padding:12px 0;display:flex}.history-item:first-child{border-top:0}.mode-toggle{flex-direction:column;gap:8px;margin-bottom:12px;display:flex}.mode-btn{text-align:left;border:1.5px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:12px;padding:12px 14px;font-size:13px;font-weight:650;line-height:1.4}.mode-btn.on{border-color:var(--teal);background:var(--soft);color:var(--teal2);box-shadow:0 0 0 2px #0d94882e}.phone.dark .mode-btn{color:#e2e8f0;background:#0f172a;border-color:#334155}.phone.dark .mode-btn.on{color:#5eead4;background:#134e4a;border-color:#0d9488}.boost-label{color:var(--muted);margin-bottom:4px;font-size:12px;font-weight:650;display:block}.spectrum-panel{background:var(--card);border:1px solid var(--line);border-radius:16px;margin:10px 0;padding:14px 12px 10px}.spectrum-panel.live{background:#0f172a;border-color:#334155}.spectrum-bars{align-items:flex-end;gap:3px;height:140px;padding:4px 2px;display:flex}.spectrum-bars span{opacity:.92;background:linear-gradient(#5eead4,#0d9488 70%);border-radius:4px 4px 2px 2px;flex:1;min-width:0;transition:height 50ms linear}.spectrum-panel.live .spectrum-bars span{background:linear-gradient(#99f6e4,#0d9488 65%,#134e4a)}.spectrum-axis{text-align:center;color:var(--muted);font-variant-numeric:tabular-nums;margin-top:8px;font-size:11px}.spectrum-panel.live .spectrum-axis{color:#94a3b8}.spectrum-status{text-align:center;color:#5eead4;margin-top:6px;font-size:12px;font-weight:700}.spectrum-hz-axis{height:22px;margin:6px 4px 0;position:relative}.spectrum-hz-tick{letter-spacing:.02em;color:#64748b;white-space:nowrap;font-size:10px;font-weight:650;position:absolute;transform:translate(-50%)}.spectrum-panel.live .spectrum-hz-tick{color:#cbd5e1}.spectrum-record-status{margin-top:8px}.spectrum-record-bar{background:#1e293b;border-radius:999px;height:6px;margin:6px 8px 0;overflow:hidden}.spectrum-record-bar span{background:linear-gradient(90deg,#0d9488,#5eead4);height:100%;transition:width 80ms linear;display:block}.spectrum-preview-panel{background:#0f172a;border:1px solid #334155;border-radius:16px;margin:10px 0;padding:14px 12px 12px}.spectrum-preview-title{text-align:center;color:#5eead4;margin:0 0 10px;font-size:13px;font-weight:700}.spectrum-preview-media{background:#020617;border-radius:12px;width:100%;display:block}.spectrum-preview-name{color:#94a3b8;text-align:center;word-break:break-all;font-variant-numeric:tabular-nums;margin:8px 0 10px;font-size:11px}.callout.warn{color:#92400e;background:#fffbeb;border-color:#f59e0b}.phone.dark .callout.warn{color:#fde68a;background:#422006;border-color:#b45309}label.field{color:#334155;margin-bottom:12px;font-size:13px;font-weight:600;display:block}label.field span{margin-bottom:6px;display:block}label.field input[type=range]{width:100%}.btn.secondary{color:#0f172a;background:#e2e8f0}.btn.secondary:active{background:#cbd5e1}.modal-backdrop{z-index:80;background:#0f172a8c;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.modal-card{background:#fff;border-radius:16px;width:min(100%,420px);padding:18px 16px 14px;box-shadow:0 20px 50px #0f172a47}.modal-card h2{margin:0 0 8px;font-size:18px}.modal-card p{color:#475569;margin:0 0 12px;font-size:13px;line-height:1.5}.phone.dark .modal-card{color:#e2e8f0;background:#1e293b}.phone.dark .modal-card p{color:#94a3b8}.info-btn{border:1.5px solid var(--teal);width:22px;height:22px;color:var(--teal);background:#fff;border-radius:50%;flex-shrink:0;place-items:center;padding:0;font-size:12px;font-style:italic;font-weight:700;line-height:1;display:grid}.info-btn.on{background:var(--teal);color:#fff}.card-title-row{justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px;display:flex}.accuracy-banner{color:#9a3412;background:#fff7ed;border:1px solid #fdba74;border-radius:12px;margin:8px 0 12px;padding:12px;font-size:13px;line-height:1.45}.accuracy-banner-row{justify-content:space-between;align-items:center;gap:8px;display:flex}.grade-strip{grid-template-columns:repeat(4,1fr);gap:4px;margin-top:4px;display:grid}.grade-seg{text-align:center;color:#0f172a;border-radius:10px;min-height:52px;padding:18px 4px 10px;font-size:10px;font-weight:650;position:relative}.grade-seg-0{background:#ccfbf1}.grade-seg-1{background:#a7f3d0}.grade-seg-2{background:#fde68a}.grade-seg-3{background:#fdba74}.grade-seg.you{outline:2px solid var(--teal);outline-offset:1px}.grade-seg-label{display:block}.grade-you{background:var(--teal);color:#fff;white-space:nowrap;border-radius:999px;padding:1px 6px;font-size:9px;font-weight:700;position:absolute;top:4px;left:50%;transform:translate(-50%)}.hn-value{color:var(--teal);font-variant-numeric:tabular-nums;font-size:40px;font-weight:750;line-height:1.1}.hn-band{margin:4px 0 6px;font-size:14px;font-weight:650}.capacity-row{flex-wrap:wrap;justify-content:center;gap:16px;display:flex}.capacity-ring{flex-direction:column;align-items:center;gap:4px;display:flex}.btn.ear-left.ghost{color:#2563eb}.btn.ear-right.ghost{color:#dc2626}.btn.ear-left:not(.ghost){background:#2563eb}.btn.ear-right:not(.ghost){background:#dc2626}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.ye-progress{background:#e2e8f0;border-radius:999px;height:8px;margin-top:4px;overflow:hidden}.ye-progress__bar{background:var(--teal);border-radius:999px;height:100%;transition:width .25s}.ye-freq{text-align:center;margin:18px 0 12px}.ye-freq__hz{letter-spacing:.02em;color:#0f172a;font-size:40px;font-weight:750}.ye-freq__unit{color:var(--muted);margin-left:4px;font-size:18px;font-weight:600}.ye-ear{color:var(--muted);margin-top:6px;font-weight:650}.ye-ear--right{color:#ef4444}.ye-ear--left{color:#0d9488}.ye-listening{text-align:center;padding:12px 0 8px}.ye-listening__title{margin:8px 0 4px;font-size:17px;font-weight:700}.ye-wave{justify-content:center;align-items:flex-end;gap:5px;height:36px;display:flex}.ye-wave i{background:var(--teal);border-radius:3px;width:5px;animation:.9s ease-in-out infinite ye-wave;display:block}.ye-wave i:first-child{height:12px;animation-delay:0s}.ye-wave i:nth-child(2){height:22px;animation-delay:.1s}.ye-wave i:nth-child(3){height:32px;animation-delay:.2s}.ye-wave i:nth-child(4){height:22px;animation-delay:.3s}.ye-wave i:nth-child(5){height:12px;animation-delay:.4s}@keyframes ye-wave{0%,to{opacity:.55;transform:scaleY(.55)}50%{opacity:1;transform:scaleY(1)}}.ye-response{text-align:center;padding:8px 0 4px}.ye-response__q{margin-bottom:4px;font-size:18px;font-weight:750}.ye-response__btns{flex-direction:column;gap:10px;display:flex}.ye-btn-hear{background:#0d9488!important;border-color:#0d9488!important}.ye-btn-not{color:#0f172a!important;background:#fff!important;border:1.5px solid #cbd5e1!important}.ye-btn-hear:disabled,.ye-btn-not:disabled{opacity:.45}.ye-audiogram{background:#fff;border-radius:12px;width:100%;overflow:hidden}.ye-audiogram canvas{margin:0 auto;display:block}.ye-summary{white-space:pre-wrap;color:#334155;margin:0;font-family:inherit;font-size:13.5px;line-height:1.55}.disclaimer{color:#64748b;border:1px solid var(--line);background:#f8fafc;border-radius:12px;padding:10px 12px;font-size:12.5px;line-height:1.45}