:root {
  --ink: #102c3b;
  --muted: #647b86;
  --line: #d9e6e5;
  --paper: #ffffff;
  --wash: #eef7f5;
  --teal: #087f79;
  --teal-dark: #08615f;
  --lime: #b9e36a;
  --navy: #0d3445;
  --shadow: 0 24px 70px rgba(19, 59, 67, .11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 8%, rgba(185, 227, 106, .2), transparent 26rem),
    linear-gradient(180deg, #f5fbf9 0, #edf6f4 34rem, #f8fbfa 100%);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}
button, input { font: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

.site-header {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1180px;
  margin: auto;
  padding: 0 28px;
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--navy); text-decoration: none; font-size: 19px; letter-spacing: -.02em; }
.brand b { color: var(--teal); }
.brand-mark { width: 34px; height: 34px; display: flex; gap: 3px; align-items: center; justify-content: center; border-radius: 10px; background: var(--navy); }
.brand-mark i { display: block; width: 2px; border-radius: 2px; background: var(--lime); }
.brand-mark i:nth-child(1), .brand-mark i:nth-child(5) { height: 8px; }
.brand-mark i:nth-child(2), .brand-mark i:nth-child(4) { height: 16px; }
.brand-mark i:nth-child(3) { height: 23px; }
.status-pill { display: flex; align-items: center; gap: 8px; padding: 8px 13px; border: 1px solid #cee2df; border-radius: 999px; color: var(--teal-dark); font-size: 12px; background: rgba(255,255,255,.55); }
.status-pill i { width: 7px; height: 7px; border-radius: 50%; background: #44b881; box-shadow: 0 0 0 4px rgba(68,184,129,.12); }

main { max-width: 1120px; margin: auto; padding: 42px 28px 30px; }
.hero { max-width: 760px; margin-bottom: 48px; }
.eyebrow, .section-heading small, .card-heading small, .report-heading small, .data-card-heading small { color: var(--teal); text-transform: uppercase; letter-spacing: .16em; font-size: 11px; font-weight: 750; }
h1 { margin: 12px 0 20px; color: var(--navy); font-family: Georgia, "Songti SC", serif; font-size: clamp(48px, 8vw, 82px); line-height: .98; letter-spacing: -.055em; font-weight: 500; }
h1 em { color: var(--teal); font-style: normal; }
.hero p { max-width: 590px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.8; }
.feature-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 24px; }
.feature-row span { padding: 7px 11px; border-radius: 6px; background: rgba(255,255,255,.65); color: #45626c; font-size: 12px; border: 1px solid #dce9e6; }

.upload-card, .report-card, .data-card, .bq5-card { background: rgba(255,255,255,.92); border: 1px solid rgba(205, 224, 221, .9); border-radius: 22px; box-shadow: var(--shadow); }
.upload-card { padding: 30px; }
.card-heading, .section-heading, .report-heading, .data-card-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.card-heading h2, .section-heading h2 { margin: 7px 0 0; font-size: 25px; letter-spacing: -.035em; }
.privacy-badge { padding: 8px 11px; border-radius: 7px; background: var(--wash); color: var(--teal-dark); font-size: 11px; }
.dropzone { min-height: 238px; margin-top: 25px; border: 1.5px dashed #a8c8c4; border-radius: 15px; background: #f7fbfa; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; text-align: center; transition: .2s ease; }
.dropzone:hover, .dropzone.is-dragging { border-color: var(--teal); background: #eff9f6; transform: translateY(-1px); }
.dropzone.has-file { border-style: solid; border-color: #8bbdb4; background: #f0faf7; }
.dropzone input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.upload-icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; color: white; font-size: 23px; background: var(--teal); box-shadow: 0 10px 25px rgba(8,127,121,.2); }
.dropzone strong { margin-top: 4px; font-size: 18px; }
.dropzone > span:not(.upload-icon):not(.file-chip) { color: var(--muted); font-size: 13px; }
.file-chip { max-width: 90%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-top: 6px; padding: 8px 12px; background: white; border: 1px solid #cee3df; border-radius: 7px; color: var(--teal-dark); font-size: 12px; }
.frequency-settings { min-width: 0; margin: 18px 0 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: 13px; background: #fbfdfc; }
.frequency-settings legend { padding: 0 7px; color: var(--navy); font-size: 13px; font-weight: 750; }
.frequency-settings > p { margin: 0; color: var(--muted); font-size: 12px; }
.frequency-inputs { display: flex; align-items: end; gap: 12px; margin-top: 14px; }
.frequency-inputs > label { display: grid; gap: 7px; color: var(--muted); font-size: 11px; }
.range-separator { padding-bottom: 11px; color: #8ca09f; }
.number-field { display: flex; align-items: center; overflow: hidden; border: 1px solid #bfd5d1; border-radius: 9px; background: white; }
.number-field:focus-within { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(8,127,121,.1); }
.number-field input { width: 86px; padding: 10px 8px 10px 12px; border: 0; outline: 0; color: var(--ink); background: transparent; font-weight: 700; }
.number-field b { padding-right: 12px; color: var(--muted); font-size: 10px; }
.form-footer { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 20px; }
.form-footer p { margin: 0; color: var(--muted); font-size: 12px; }
.primary-button, .secondary-button, .save-report-button { border: 0; border-radius: 9px; font-weight: 700; transition: .18s ease; }
.primary-button { display: flex; align-items: center; gap: 32px; padding: 14px 19px; color: white; background: var(--navy); box-shadow: 0 9px 20px rgba(13,52,69,.17); }
.primary-button:hover:not(:disabled) { background: var(--teal-dark); transform: translateY(-1px); }
.primary-button:disabled { cursor: not-allowed; opacity: .38; }
.secondary-button { padding: 11px 15px; background: var(--wash); color: var(--teal-dark); border: 1px solid #cee1de; }
.secondary-button:hover { background: #e1f2ee; }
.save-report-button { padding: 12px 17px; color: white; background: var(--navy); box-shadow: 0 8px 18px rgba(13,52,69,.14); }
.save-report-button:hover:not(:disabled) { background: var(--teal-dark); transform: translateY(-1px); }
.save-report-button:disabled { cursor: wait; opacity: .6; }
.compact-button { padding: 8px 12px; font-size: 11px; }
.message { margin-top: 16px; padding: 12px 14px; border-radius: 8px; font-size: 13px; }
.message.error { color: #922f37; background: #fff1f1; border: 1px solid #f2cccc; }

.processing { display: flex; align-items: center; justify-content: center; gap: 16px; margin: 25px 0; padding: 24px; border-radius: 14px; color: var(--navy); background: white; border: 1px solid var(--line); }
.processing div:last-child { display: flex; flex-direction: column; gap: 5px; }
.processing span { color: var(--muted); font-size: 12px; }
.spinner { width: 32px; height: 32px; border: 3px solid #d6e8e4; border-top-color: var(--teal); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.results { padding-top: 68px; }
.section-heading { align-items: end; margin-bottom: 24px; }
.result-actions { display: flex; gap: 9px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.summary-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 18px; }
.summary-grid article { min-width: 0; padding: 20px; background: var(--navy); color: white; border-radius: 13px; }
.summary-grid article:nth-child(2) { background: var(--teal); }
.summary-grid article:nth-child(3) { background: #346665; }
.summary-grid article:nth-child(4) { background: #e8f2ef; color: var(--ink); }
.summary-grid span, .summary-grid small { display: block; opacity: .72; font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.summary-grid strong { display: block; margin: 7px 0; font-size: 25px; }
.confidence-card { display: grid; grid-template-columns: minmax(190px, .28fr) minmax(0, 1fr); overflow: hidden; margin-bottom: 18px; border: 1px solid #cfe2df; border-radius: 18px; background: rgba(255,255,255,.94); box-shadow: var(--shadow); }
.confidence-score-panel { display: flex; flex-direction: column; justify-content: center; padding: 28px; color: white; background: linear-gradient(145deg, var(--navy), #126c70); }
.confidence-score-panel > small, .confidence-heading small { color: #9fd6d0; font-size: 10px; font-weight: 750; letter-spacing: .16em; text-transform: uppercase; }
.confidence-score-panel h3 { margin: 7px 0 15px; font-size: 20px; }
.confidence-score { display: flex; align-items: baseline; gap: 7px; }
.confidence-score strong { font-size: 52px; line-height: 1; font-variant-numeric: tabular-nums; }
.confidence-score span { color: rgba(255,255,255,.68); font-size: 14px; }
.confidence-score-panel progress { width: 100%; height: 8px; margin: 17px 0 12px; overflow: hidden; border: 0; border-radius: 999px; background: rgba(255,255,255,.18); accent-color: var(--lime); }
.confidence-score-panel progress::-webkit-progress-bar { border-radius: 999px; background: rgba(255,255,255,.18); }
.confidence-score-panel progress::-webkit-progress-value { border-radius: 999px; background: var(--lime); }
.confidence-score-panel progress::-moz-progress-bar { border-radius: 999px; background: var(--lime); }
.confidence-level { align-self: flex-start; padding: 6px 9px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; color: #e9ffbd; font-size: 10px; font-weight: 750; }
.confidence-card.is-low { border-color: #e1b7b1; }
.confidence-card.is-low .confidence-score-panel { background: linear-gradient(145deg, #713a3b, #a94c42); }
.confidence-card.is-low .confidence-score-panel progress { accent-color: #ffd680; }
.confidence-card.is-low .confidence-score-panel progress::-webkit-progress-value { background: #ffd680; }
.confidence-card.is-low .confidence-score-panel progress::-moz-progress-bar { background: #ffd680; }
.confidence-card.is-low .confidence-level { color: #fff0ca; }
.confidence-details { min-width: 0; padding: 25px 28px 22px; }
.confidence-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.confidence-heading small { color: var(--teal); }
.confidence-heading h3 { margin: 6px 0 0; font-size: 18px; }
.confidence-heading > span { padding: 7px 9px; border-radius: 7px; color: #8a544d; background: #fff0ed; font-size: 10px; }
.confidence-summary { margin: 13px 0; color: var(--muted); font-size: 12px; }
.confidence-rule-list { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.confidence-rule-list li { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 11px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 9px; background: #f9fcfb; }
.confidence-rule-status { min-width: 49px; padding: 5px 7px; border-radius: 999px; color: #477168; background: #e5f3ef; font-size: 9px; font-weight: 750; text-align: center; }
.confidence-rule-list li.is-triggered { border-color: #edc5bf; background: #fff8f6; }
.confidence-rule-list li.is-triggered .confidence-rule-status { color: #98473f; background: #fbe1dc; }
.confidence-rule-list strong { color: var(--ink); font-size: 12px; }
.confidence-rule-list p { margin: 3px 0 0; color: var(--muted); font-size: 10px; line-height: 1.5; }
.confidence-rule-list b { color: var(--teal-dark); font-size: 13px; font-variant-numeric: tabular-nums; }
.confidence-rule-list li.is-triggered b { color: #aa493f; }
.confidence-disclaimer { margin: 12px 0 0; color: #87999f; font-size: 9px; }
.report-card, .data-card, .bq5-card { padding: 26px; margin-top: 18px; }
.report-heading h3, .data-card-heading h3 { margin: 6px 0 0; font-size: 20px; }
.report-heading > span { max-width: 45%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 11px; }
.report-card img { display: block; width: 100%; margin-top: 22px; border-radius: 10px; border: 1px solid var(--line); background: #edf5f6; }
.report-description { margin: 14px 0 -5px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.radar-chart-wrap { margin-top: 18px; padding: 8px; border: 1px solid var(--line); border-radius: 14px; background: radial-gradient(circle at 50% 50%, #ffffff 0, #f5faf9 70%, #edf6f4 100%); }
#bq5-radar-chart { display: block; width: 100%; aspect-ratio: 16 / 8; }
.radar-score-list { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; margin: 12px 0 0; }
.radar-score-list > div { min-width: 0; padding: 9px 8px; text-align: center; border-radius: 8px; background: var(--wash); }
.radar-score-list dt { overflow: hidden; color: var(--muted); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.radar-score-list dd { margin: 4px 0 0; color: var(--teal-dark); font-size: 14px; font-weight: 750; font-variant-numeric: tabular-nums; }
.score-interpretation-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
.score-interpretation-item { min-width: 0; padding: 17px 18px; border: 1px solid var(--line); border-radius: 12px; background: #f9fcfb; }
.score-interpretation-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.score-interpretation-heading h4 { margin: 0; color: var(--navy); font-size: 15px; }
.score-interpretation-heading span { flex: 0 0 auto; padding: 5px 9px; border-radius: 999px; color: var(--teal-dark); background: var(--wash); font-size: 10px; }
.score-interpretation-heading strong { font-size: 14px; font-variant-numeric: tabular-nums; }
.score-interpretation-item p { margin: 11px 0 8px; color: #385963; font-size: 13px; line-height: 1.75; }
.score-interpretation-item > small { color: #82969b; font-size: 10px; font-variant-numeric: tabular-nums; }
.report-edit-status { margin: 0 0 14px; color: var(--teal-dark); font-size: 13px; line-height: 1.7; }
.report-save-status { margin: 0 0 14px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.report-save-status:empty { display: none; }
.report-score-input { width: 112px; max-width: 100%; padding: 8px 9px; border: 1px solid #bfd5d1; border-radius: 8px; color: var(--teal-dark); background: white; font: inherit; font-weight: 650; text-align: center; font-variant-numeric: tabular-nums; }
.radar-score-list .report-score-input { width: 100%; padding: 7px 4px; font-size: 13px; }
.report-score-input:focus, .report-level-input:focus, .report-text-label textarea:focus { outline: 2px solid #8bbdb4; outline-offset: 2px; }
.report-score-input[aria-invalid="true"] { border-color: #bd4651; background: #fff1f1; }
.interpretation-score-label { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 11px; }
.interpretation-score-label .report-score-input { width: 90px; font-size: 14px; }
.report-text-label { display: grid; gap: 6px; margin: 14px 0; color: var(--muted); font-size: 11px; }
.report-level-input, .report-text-label textarea { box-sizing: border-box; width: 100%; padding: 9px 11px; border: 1px solid #bfd5d1; border-radius: 8px; background: white; color: #385963; font-family: inherit; font-size: 13px; line-height: 1.75; }
.report-level-input { max-width: 180px; }
.report-text-label textarea { min-height: 150px; resize: vertical; }
.report-score-input:disabled, .report-level-input:disabled, .report-text-label textarea:disabled { opacity: .7; }
.pressure-side-editors { display: flex; flex-wrap: wrap; gap: 16px; }
.pressure-side-editors .report-text-label { margin-bottom: 0; }
.interactive-spectrum-heading { align-items: center; }
.interactive-spectrum-actions { display: flex; align-items: center; gap: 9px; }
.interactive-channel-switch { display: flex; padding: 3px; border-radius: 9px; background: var(--wash); }
.interactive-channel-button { padding: 8px 12px; border: 0; border-radius: 7px; color: var(--muted); background: transparent; font-size: 11px; font-weight: 750; }
.interactive-channel-button:hover { color: var(--teal-dark); }
.interactive-channel-button.active { color: white; background: var(--teal); box-shadow: 0 4px 10px rgba(8,127,121,.16); }
.interactive-palette-editor { margin-top: 17px; padding: 15px; border: 1px solid var(--line); border-radius: 12px; background: #f8fbfa; }
.interactive-palette-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.interactive-palette-heading strong, .interactive-palette-heading span { display: block; }
.interactive-palette-heading strong { color: var(--navy); font-size: 13px; }
.interactive-palette-heading span { margin-top: 4px; color: var(--muted); font-size: 10px; }
.interactive-palette-preview { height: 12px; margin-top: 13px; border: 1px solid rgba(16,44,59,.18); border-radius: 999px; background: linear-gradient(90deg, #001E57 0%, #002E7A 2.050%, #0042AA 3.280%, #0433FF 4.223%, #327FFF 16.687%, #00FDFF 33.333%, #00F900 50.020%, #FFFB00 66.666%, #E5BAE1 83.334%, #D24432 100%); box-shadow: inset 0 1px 2px rgba(16,44,59,.12); }
.interactive-palette-add { display: grid; grid-template-columns: minmax(110px, .8fr) 80px minmax(110px, .8fr) auto; align-items: end; gap: 9px; margin-top: 13px; padding: 11px; border: 1px solid #d8e6e3; border-radius: 10px; background: #fff; }
.interactive-palette-add label, .interactive-palette-stop label { display: grid; min-width: 0; gap: 5px; color: var(--muted); font-size: 9px; }
.interactive-palette-add input[type="number"], .interactive-palette-add input[type="text"], .interactive-palette-stop input[type="number"] { min-width: 0; width: 100%; height: 32px; padding: 6px 7px; border: 1px solid #cbdcda; border-radius: 6px; color: #365a63; background: white; font-size: 10px; }
.interactive-palette-add input[type="text"] { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; text-transform: uppercase; }
.interactive-palette-add input[type="color"] { width: 100%; height: 32px; padding: 2px; border: 1px solid #bfd5d1; border-radius: 7px; background: white; cursor: pointer; }
.interactive-palette-controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(118px, 1fr)); gap: 8px; margin-top: 11px; }
.interactive-palette-stop { display: grid; min-width: 0; gap: 7px; padding: 9px; border: 1px solid #dce8e6; border-radius: 9px; color: var(--muted); background: white; font-size: 9px; text-align: center; }
.interactive-palette-stop-heading { display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.interactive-palette-stop-heading strong { color: var(--navy); font-size: 10px; }
.interactive-palette-stop-heading button { padding: 3px 6px; border: 0; border-radius: 5px; color: #a54943; background: #fff0ed; font-size: 8px; cursor: pointer; }
.interactive-palette-stop-heading button:hover:not(:disabled) { background: #fbded9; }
.interactive-palette-stop-heading button:disabled { cursor: not-allowed; opacity: .35; }
.interactive-palette-controls input[type="color"] { width: 100%; height: 34px; padding: 2px; border: 1px solid #bfd5d1; border-radius: 7px; background: white; cursor: pointer; }
.interactive-palette-controls input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.interactive-palette-controls input[type="color"]::-webkit-color-swatch { border: 0; border-radius: 4px; }
.interactive-palette-controls input[type="color"]::-moz-color-swatch { border: 0; border-radius: 4px; }
.interactive-palette-controls input:focus-visible { outline: 2px solid rgba(8,127,121,.35); outline-offset: 2px; }
.interactive-palette-controls input[type="text"] { min-width: 0; width: 100%; padding: 6px 4px; border: 1px solid #cbdcda; border-radius: 6px; color: #365a63; background: white; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; text-align: center; text-transform: uppercase; }
.interactive-palette-controls input[aria-invalid="true"], .interactive-palette-add input[aria-invalid="true"] { border-color: #c44b55; background: #fff5f5; }
.interactive-spectrum-meta { min-height: 17px; margin: 11px 0 0; color: #54717a; font-size: 11px; }
.interactive-spectrum-stage { position: relative; overflow: hidden; margin-top: 14px; border: 1px solid var(--line); border-radius: 14px; background: radial-gradient(circle at 50% 34%, #ffffff 0, #f0f7f7 58%, #e6f1f0 100%); }
.interactive-spectrum-stage::after { content: ""; pointer-events: none; position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 45px rgba(13,52,69,.055); }
#interactive-spectrum-canvas { display: block; width: 100%; aspect-ratio: 16 / 9; min-height: 390px; cursor: grab; touch-action: none; outline: none; }
#interactive-spectrum-canvas:active { cursor: grabbing; }
#interactive-spectrum-canvas:focus-visible { box-shadow: inset 0 0 0 3px rgba(8,127,121,.28); }
.interactive-spectrum-hint { position: absolute; left: 14px; bottom: 12px; padding: 7px 10px; border: 1px solid rgba(190,213,209,.85); border-radius: 999px; color: #496971; background: rgba(255,255,255,.82); backdrop-filter: blur(6px); font-size: 10px; }
.memory-report-card img { background: #f5f9fa; }
.top-view-report-card img { background: #eef6fa; }
.spectrum-playback-status { flex-shrink: 0; padding: 7px 12px; border-radius: 999px; background: #edf3f3; color: var(--muted); font-size: 11px; }
.spectrum-playback-status.is-playing { color: var(--teal-dark); background: #e4f3e5; }
.spectrum-playback-controls { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin: 22px 0 20px; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: #f7fbfa; }
.spectrum-playback-speed { display: flex; align-items: center; gap: 8px; margin-left: 6px; color: var(--muted); font-size: 12px; }
.spectrum-playback-speed select { padding: 6px; border: 1px solid #bfd5d1; border-radius: 6px; color: var(--ink); background: white; font: inherit; }
#spectrum-playback-time { margin-left: auto; color: var(--teal-dark); font-size: 13px; font-weight: 650; font-variant-numeric: tabular-nums; white-space: nowrap; }
.spectrum-playback-colors { min-width: 0; margin: 0 0 20px; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: #fbfdfd; }
.spectrum-playback-colors legend { padding: 0 6px; color: var(--ink); font-size: 13px; font-weight: 650; }
.spectrum-playback-colors legend span { margin-left: 8px; color: var(--muted); font-size: 11px; font-weight: 400; }
.spectrum-playback-color-heading { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 16px; margin-bottom: 12px; font-size: 12px; }
.spectrum-playback-color-all { display: flex; align-items: center; gap: 7px; cursor: pointer; }
.spectrum-playback-colors input[type="checkbox"] { flex-shrink: 0; width: 16px; height: 16px; margin: 0; accent-color: var(--teal); cursor: pointer; }
#spectrum-playback-color-summary { margin-left: auto; color: var(--muted); font-size: 11px; }
.spectrum-playback-color-options { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.spectrum-playback-color-option { display: flex; align-items: center; gap: 9px; min-width: 0; padding: 12px 10px; border: 1px solid #dce7e7; border-radius: 9px; background: white; cursor: pointer; }
.spectrum-playback-color-option:focus-within { outline: 2px solid var(--teal); outline-offset: 2px; }
.spectrum-playback-color-option b { display: block; color: var(--ink); font-size: 12px; font-weight: 600; }
.spectrum-playback-color-option small { display: block; margin-top: 4px; color: var(--muted); font-size: 10px; font-variant-numeric: tabular-nums; }
.spectrum-playback-color-swatch { flex-shrink: 0; width: 24px; height: 32px; border: 1px solid rgba(0,30,87,.1); border-radius: 5px; }
.spectrum-playback-color-cool { background: linear-gradient(90deg, #001e57, #0433ff, #327fff, #00fdff); }
.spectrum-playback-color-green { background: #00f900; }
.spectrum-playback-color-yellow { background: #fffb00; }
.spectrum-playback-color-warm { background: linear-gradient(90deg, #e5bae1, #d24432); }
.spectrum-playback-color-custom { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-top: 15px; color: var(--muted); font-size: 11px; }
.spectrum-playback-color-custom label { display: flex; align-items: center; gap: 6px; }
.spectrum-playback-color-custom input { width: 70px; min-width: 0; padding: 7px; border: 1px solid #bfd5d1; border-radius: 6px; background: white; color: var(--ink); font-size: 12px; }
.spectrum-playback-color-help, .spectrum-playback-color-error { margin: 12px 0 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.spectrum-playback-color-error { color: #b63333; }
.spectrum-playback-channels { display: grid; gap: 20px; }
.spectrum-playback-channel { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); grid-template-rows: auto auto; gap: 12px; }
.spectrum-playback-channel figure { min-width: 0; margin: 0; overflow: hidden; border: 1px solid #d9e6eb; border-radius: 12px; background: #f4f9fb; }
.spectrum-playback-channel figcaption { min-height: 45px; padding: 12px 12px 5px; color: #173b57; font-size: 12px; font-weight: 650; line-height: 1.5; }
.spectrum-playback-channel canvas { display: block; width: 100%; }
.spectrum-playback-surface { grid-row: 1 / 3; }
.spectrum-playback-surface canvas { height: 430px; }
.spectrum-playback-bands canvas { height: 215px; }
.spectrum-playback-raw canvas { height: 158px; }
@media (max-width: 760px) {
  .spectrum-playback-channel { grid-template-columns: minmax(0, 1fr); }
  .spectrum-playback-surface { grid-row: auto; }
  .spectrum-playback-surface canvas { height: 320px; }
  .spectrum-playback-controls { padding: 12px; gap: 8px; }
  .spectrum-playback-colors { padding: 12px; }
  .spectrum-playback-color-options { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .spectrum-playback-speed { margin-left: 0; }
  #spectrum-playback-time { flex-basis: 100%; margin: 4px 0; text-align: right; }
}
@media (max-width: 480px) {
  .spectrum-playback-color-options { grid-template-columns: minmax(0, 1fr); }
}
.amplitude-count-report-card img { background: #eef6fa; }
.amplitude-percentage-report-card img { background: #eef6fa; }
.amplitude-plots-grid { display: grid; gap: 18px; margin-top: 22px; }
.amplitude-plot-item { overflow: hidden; padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: #f9fcfc; }
.amplitude-plot-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.amplitude-plot-heading small { color: var(--teal); font-size: 10px; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.amplitude-plot-heading h4 { margin: 5px 0 0; font-size: 16px; }
.point-counts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.point-counts span { padding: 7px 10px; border-radius: 7px; color: var(--muted); background: #eaf3f1; font-size: 11px; }
.point-counts strong { margin-left: 5px; color: var(--navy); font-variant-numeric: tabular-nums; }
.amplitude-plot-item img { display: block; width: 100%; margin-top: 16px; border: 1px solid var(--line); border-radius: 10px; background: #eef6fa; }
.score-note { align-self: center; padding: 8px 11px; border-radius: 7px; color: var(--teal-dark); background: var(--wash); font-size: 11px; }
.score-table-wrap { min-width: 0; margin-top: 24px; padding: 3px 16px; border: 1px solid var(--line); border-radius: 12px; background: #fbfdfc; }
.score-table th, .score-table td { height: 53px; text-align: center; }
.score-table th:first-child { text-align: left; }
.score-table tbody th { color: var(--ink); font-size: 13px; }
.score-table tbody th small { display: block; margin-top: 3px; color: #b15353; font-size: 9px; font-weight: 600; }
.score-table tbody td { color: #536d76; font-size: 14px; }
.score-table tbody td strong { display: inline-grid; min-width: 55px; min-height: 31px; place-items: center; padding: 3px 7px; border-radius: 7px; color: white; background: var(--teal); font-size: 15px; }
.score-row-pressure td strong { background: #b6604f; }
.tabs { display: flex; padding: 3px; background: var(--wash); border-radius: 8px; }
.tab { padding: 8px 14px; border: 0; border-radius: 6px; color: var(--muted); background: transparent; font-size: 12px; font-weight: 700; }
.tab.active { color: white; background: var(--teal); }
.band-bars { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 28px; margin: 28px 0; }
.band-row { display: grid; grid-template-columns: 52px 1fr 50px; gap: 10px; align-items: center; font-size: 11px; }
.band-row > span { color: var(--muted); }
.band-meter {
  width: 100%;
  height: 7px;
  overflow: hidden;
  border: 0;
  border-radius: 999px;
  appearance: none;
  -webkit-appearance: none;
  background: #edf2f1;
}
.band-meter::-webkit-progress-bar { background: #edf2f1; border-radius: 999px; }
.band-meter::-webkit-progress-value { background: #087f79; border-radius: 999px; }
.band-meter::-moz-progress-bar { background: #087f79; border-radius: 999px; }
.band-meter-0::-webkit-progress-value { background: #7b61a8; }
.band-meter-1::-webkit-progress-value { background: #4169a1; }
.band-meter-2::-webkit-progress-value { background: #23a6d5; }
.band-meter-3::-webkit-progress-value { background: #39b872; }
.band-meter-4::-webkit-progress-value { background: #74c476; }
.band-meter-5::-webkit-progress-value { background: #e7b52c; }
.band-meter-6::-webkit-progress-value { background: #ec7b2d; }
.band-meter-7::-webkit-progress-value { background: #d84b73; }
.band-meter-0::-moz-progress-bar { background: #7b61a8; }
.band-meter-1::-moz-progress-bar { background: #4169a1; }
.band-meter-2::-moz-progress-bar { background: #23a6d5; }
.band-meter-3::-moz-progress-bar { background: #39b872; }
.band-meter-4::-moz-progress-bar { background: #74c476; }
.band-meter-5::-moz-progress-bar { background: #e7b52c; }
.band-meter-6::-moz-progress-bar { background: #ec7b2d; }
.band-meter-7::-moz-progress-bar { background: #d84b73; }
.band-row strong { text-align: right; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12px; font-variant-numeric: tabular-nums; }
th, td { padding: 12px 10px; text-align: right; border-top: 1px solid #e4edeb; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
thead th { color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .04em; border-top: 0; }
tbody th { color: var(--teal-dark); }
.disclaimer { margin: 28px 0 0; text-align: center; color: #7f939a; font-size: 11px; }
footer { max-width: 1120px; margin: 40px auto 0; padding: 24px 28px 36px; border-top: 1px solid #d9e6e3; display: flex; justify-content: space-between; color: #758b92; font-size: 11px; }

@media (max-width: 760px) {
  .site-header { height: 64px; padding: 0 18px; }
  .status-pill { display: none; }
  main { padding: 26px 16px 20px; }
  .hero { margin-bottom: 32px; }
  h1 { font-size: clamp(46px, 15vw, 66px); }
  .hero p { font-size: 15px; }
  .upload-card, .report-card, .data-card { padding: 18px; border-radius: 16px; }
  .card-heading { display: block; }
  .privacy-badge { display: inline-block; margin-top: 13px; }
  .dropzone { min-height: 210px; }
  .form-footer { align-items: stretch; flex-direction: column; }
  .frequency-inputs { align-items: stretch; flex-direction: column; }
  .range-separator { display: none; }
  .number-field { justify-content: space-between; }
  .number-field input { width: 100%; }
  .primary-button { justify-content: space-between; width: 100%; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .result-actions { width: 100%; flex-direction: column; align-items: stretch; }
  .result-actions button { width: 100%; }
  .summary-grid { grid-template-columns: 1fr 1fr; }
  .data-card-heading { flex-direction: column; }
  .confidence-card { grid-template-columns: 1fr; }
  .confidence-score-panel { padding: 23px; }
  .confidence-score strong { font-size: 44px; }
  .confidence-details { padding: 21px; }
  .confidence-heading { flex-direction: column; }
  .confidence-rule-list li { grid-template-columns: auto minmax(0, 1fr); }
  .confidence-rule-list li > b { grid-column: 2; }
  #bq5-radar-chart { aspect-ratio: 1 / 1; }
  .radar-score-list { grid-template-columns: repeat(3, 1fr); }
  .score-interpretation-list { grid-template-columns: 1fr; }
  .interactive-spectrum-heading { align-items: stretch; }
  .interactive-spectrum-actions { align-items: stretch; flex-direction: column; }
  .interactive-channel-switch { width: 100%; }
  .interactive-channel-button { flex: 1; }
  .interactive-palette-heading { align-items: stretch; flex-direction: column; }
  .interactive-palette-add { grid-template-columns: 1fr 1fr; }
  .interactive-palette-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #interactive-spectrum-canvas { min-height: 330px; aspect-ratio: 4 / 3; }
  .bq5-card { padding: 18px; border-radius: 16px; }
  .score-table-wrap { padding: 2px 8px; overflow-x: auto; }
  .score-table { min-width: 430px; }
  .band-bars { grid-template-columns: 1fr; }
  .amplitude-plot-heading { align-items: flex-start; flex-direction: column; }
  footer { margin-top: 25px; padding: 20px 18px 30px; flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation-duration: .01ms !important; }
}

/* 六项指标紧凑表格；活跃平衡为综合主值，差异分作为同格辅助信息。 */
.metric-table-wrap { margin-top: 16px; overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
.metric-table { width: 100%; min-width: 560px; border-collapse: collapse; table-layout: fixed; }
.metric-table th, .metric-table td { padding: 12px 10px; text-align: center; border-bottom: 1px solid var(--line); }
.metric-table thead th { background: #edf5f3; color: #536d76; font-size: 12px; font-weight: 600; }
.metric-table th:first-child { width: 18%; text-align: left; padding-left: 16px; }
.metric-table th:last-child { width: 38%; }
.metric-table tbody th { font-size: 13px; color: var(--ink); }
.metric-table tbody tr:nth-child(even) { background: #f8fbfa; }
.metric-table tbody tr:last-child > * { border-bottom: 0; }
.metric-table td strong { color: var(--teal); font-size: 16px; font-weight: 650; font-variant-numeric: tabular-nums; }
.metric-table td small { display: block; margin-top: 4px; font-size: 10px; line-height: 1.4; color: #657b81; }
.metric-table td .metric-inline-note { display: inline; margin: 0 0 0 4px; white-space: normal; }
.metric-table .metric-empty { color: #a9b7bb; }

.metric-explanation { margin-top: 18px; padding: 16px; border-radius: 10px; background: #f7faf9; }
.metric-explanation h4 { margin: 0; font-size: 13px; color: var(--ink); }
.metric-explanation-intro { margin: 6px 0 12px; color: #657b81; font-size: 12px; }
.metric-explanation dl { margin: 0; }
.metric-explanation dl > div { display: grid; grid-template-columns: 70px minmax(0, 1fr); gap: 10px; margin-top: 9px; font-size: 12px; line-height: 1.75; }
.metric-explanation dt { color: var(--ink); font-weight: 600; }
.metric-explanation dd { margin: 0; color: #536d76; }
.metric-explanation strong { color: var(--ink); font-weight: 600; }