:root {
  color: #303333;
  background: #f3f4f3;
  font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  --ink: #303333;
  --muted: #747878;
  --line: #d7d9d8;
  --surface: #fff;
  --soft: #f6f7f6;
  --blue: #376f9f;
  --blue-soft: #d9e5ee;
  --zero: #e9ece7;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 18px; }
body { margin: 0; min-width: 320px; min-height: 100vh; color: var(--ink); background: #f3f4f3; font-size: 14px; line-height: 1.55; }
button, input, select { color: inherit; font: inherit; }
button { border: 0; }
a { color: inherit; text-decoration: none; }
button, a, select { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid #9ab9d2; outline-offset: 2px; }

.masthead { color: #d4d5d3; background: #242827; border-bottom: 1px solid #171a19; }
.masthead-inner { max-width: 1480px; margin: auto; padding: 15px 28px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.wordmark { display: flex; align-items: center; gap: 11px; color: #fff; font-size: 14px; letter-spacing: .2px; }
.wordmark-mark { width: 28px; height: 28px; display: grid; place-items: center; border: 1px solid #777e7a; border-radius: 5px; font-size: 10px; font-weight: 700; letter-spacing: .6px; }
.masthead-actions { display: flex; align-items: center; gap: 14px; }
.connection { color: #b7bcb9; font-size: 12px; }
.connection::before { content: ""; display: inline-block; width: 6px; height: 6px; margin-right: 6px; border-radius: 50%; background: #7fa983; }
.connection.is-error::before { background: #bd7474; }

.button { min-height: 32px; padding: 5px 11px; border: 1px solid #cfd2d0; border-radius: 4px; background: #fff; cursor: pointer; font-size: 12px; }
.button:hover:not(:disabled) { border-color: #858b87; background: #f4f5f4; }
.button:disabled { color: #adb1ae; cursor: default; }
.button-dark { color: #f4f5f4; border-color: #646966; background: #343937; }
.button-dark:hover:not(:disabled) { border-color: #969c98; background: #414744; }
.text-button { padding: 0; color: #3f596c; background: transparent; cursor: pointer; font-size: 12px; text-decoration: underline; }
.text-button + .text-button { margin-left: 15px; }

.platform-main { max-width: 1480px; margin: auto; padding: 26px 28px 60px; }
.platform-heading, .platform-refresh, .platform-run-heading, .platform-panel-title, .platform-pagination, .platform-meta { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.platform-heading { margin-bottom: 22px; }
.platform-heading h1 { margin: 0; font-size: 26px; font-weight: 650; letter-spacing: -.5px; }
.platform-heading p, .platform-panel-title p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.platform-refresh, .platform-list-meta, .platform-small { color: var(--muted); font-size: 12px; line-height: 1.65; }
.platform-refresh { align-items: flex-end; flex-direction: column; gap: 2px; }
.platform-refresh span:last-child { color: #4e5350; font-weight: 600; }
.eyebrow { margin: 0; color: #7b817d; font-size: 11px; font-weight: 700; letter-spacing: 1.5px; }
.is-hidden { display: none !important; }

.platform-layout { display: grid; grid-template-columns: 278px minmax(0, 1fr); gap: 24px; align-items: start; }
.platform-sidebar { position: sticky; top: 18px; min-width: 0; }
.field { display: block; min-width: 0; }
.field > span { display: block; margin-bottom: 4px; color: var(--muted); font-size: 11px; }
.field input, .field select { width: 100%; min-height: 36px; padding: 7px 9px; border: 1px solid var(--line); border-radius: 4px; background: #fff; font-size: 12px; }
.field input::placeholder { color: #969b98; }
.field input:focus, .field select:focus { border-color: #7795ac; }
.platform-filters { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 12px 0; }
.platform-status-filter { position: relative; }
.platform-status-filter summary { min-height: 36px; padding: 7px 9px; display: flex; align-items: center; justify-content: space-between; gap: 6px; overflow: hidden; border: 1px solid var(--line); border-radius: 4px; background: #fff; cursor: pointer; font-size: 12px; list-style: none; white-space: nowrap; }
.platform-status-filter summary::-webkit-details-marker { display: none; }
.platform-status-filter summary::after { content: "▾"; flex: none; color: var(--muted); }
.platform-status-filter[open] summary { border-color: #7795ac; }
.platform-status-filter summary:focus-visible { outline: 3px solid #9ab9d2; outline-offset: 2px; }
.platform-status-options { position: absolute; z-index: 10; top: calc(100% + 4px); right: 0; width: max(100%, 180px); max-height: 260px; padding: 4px; overflow-y: auto; border: 1px solid var(--line); border-radius: 4px; background: #fff; box-shadow: 0 8px 20px #30333320; }
.platform-status-all, .platform-status-option { width: 100%; min-height: 34px; padding: 6px 8px; display: flex; align-items: center; gap: 8px; border-radius: 3px; background: transparent; cursor: pointer; font-size: 12px; text-align: left; }
.platform-status-all:hover, .platform-status-option:hover { background: var(--soft); }
.platform-status-all[aria-pressed="true"] { color: var(--blue); font-weight: 600; }
.platform-status-option input { width: 14px; height: 14px; min-height: 0; margin: 0; padding: 0; border: 0; background: transparent; accent-color: var(--blue); }
.platform-list-meta { display: flex; justify-content: space-between; margin: 12px 0 8px; }
.platform-run-list { max-height: calc(100vh - 260px); min-height: 240px; overflow-y: auto; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.platform-run { width: 100%; padding: 13px 12px; display: block; border-bottom: 1px solid #e9eae8; background: transparent; text-align: left; cursor: pointer; transition: background .12s; }
.platform-run:last-child { border-bottom: 0; }
.platform-run:hover { background: #f7f7f6; }
.platform-run[aria-current="true"] { background: #ebedea; box-shadow: inset 3px 0 #343b3a; }
.platform-run-top, .platform-run-bottom { display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.platform-run b { font-weight: 600; }
.platform-run code { display: block; margin: 6px 0 10px; overflow-wrap: anywhere; color: #616865; font-size: 11px; line-height: 1.5; }
.platform-run-bottom { display: block; color: var(--muted); font-size: 11px; }
.platform-run-bottom b { color: #303735; font-size: 15px; }
.platform-run-score { display: flex; flex-wrap: wrap; gap: 4px 12px; margin-top: 6px; text-align: left; white-space: normal; }
.platform-run-score > span { display: block; }
.platform-run-score > small { flex-basis: 100%; font-weight: normal; font-size: 10px; }
.platform-run small { display: block; margin-top: 6px; color: #828784; font-size: 10px; }
.platform-status { color: #616865; font-size: 11px; white-space: nowrap; }
.platform-status.live::before { content: ""; width: 6px; height: 6px; margin-right: 5px; display: inline-block; border-radius: 50%; background: var(--blue); }

.platform-content { min-width: 0; }
.platform-content[aria-busy="true"] { opacity: .72; }
.hero-empty { min-height: 360px; display: grid; place-content: center; }
.hero-empty h2 { margin: 6px 0 2px; color: #343836; }
.platform-empty { padding: 36px 18px; color: #7b847e; font-size: 13px; text-align: center; }
.platform-run-heading { align-items: start; margin-bottom: 15px; gap: 12px; }
.platform-run-heading h2 { margin: 4px 0; font-size: 22px; font-weight: 650; }
.platform-run-heading h2 small { margin-left: 6px; color: var(--muted); font-size: 12px; font-weight: 400; }
.platform-run-heading code { color: #727875; font-size: 11px; overflow-wrap: anywhere; }
.compare-field { width: min(340px, 42%); min-width: 190px; }
.platform-meta { align-items: start; margin: 0 0 16px; color: #777e79; font-size: 11px; }
.platform-meta > span { overflow-wrap: anywhere; }
.platform-meta a { color: #333a37; white-space: nowrap; }
.platform-meta a:hover { text-decoration: underline; }
.platform-result-links { display: flex; flex-wrap: wrap; gap: 8px 18px; }

.platform-kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.platform-kpis article { min-width: 0; padding: 16px 14px; border-right: 1px solid #e3e4e1; }
.platform-kpis article:last-child { border: 0; }
.platform-kpis span { color: #727875; font-size: 12px; }
.platform-kpis strong { display: block; margin: 5px 0; font-size: 27px; font-weight: 600; letter-spacing: -1px; line-height: 1.4; font-variant-numeric: tabular-nums; }
.platform-kpis small { color: #7c827e; font-size: 10px; }
.platform-notice { margin: 12px 0; padding: 11px 14px; border: 1px solid #d7d9d5; border-left: 3px solid #777e79; border-radius: 3px; color: #5a625d; background: #f8f8f6; font-size: 12px; line-height: 1.7; }
.platform-notice summary { cursor: pointer; }
.platform-notice p { overflow-wrap: anywhere; }
.platform-notice ul { padding-left: 18px; }
.platform-progress { width: 100%; height: 4px; margin: 12px 0 10px; display: block; border: 0; appearance: none; background: #e2e4e3; }
.platform-progress::-webkit-progress-bar { background: #e2e4e3; }
.platform-progress::-webkit-progress-value { background: #636967; }
.platform-progress::-moz-progress-bar { background: #636967; }

.platform-legend { display: flex; flex-wrap: wrap; gap: 20px; margin: 8px 0 16px; color: #68716b; font-size: 11px; }
.platform-legend i, .platform-heat-legend i { width: 8px; height: 8px; margin-right: 5px; display: inline-block; border-radius: 2px; }
.platform-legend b { margin-left: 4px; font-weight: 550; }
.platform-legend .success, .platform-outcome.success { color: var(--blue); }
.platform-legend i.success { background: var(--blue); }
.platform-legend i.partial_score { background: #9fa9b1; }
.platform-legend i.zero_score { background: #d4d8d4; }

.platform-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.platform-panel { min-width: 0; margin-bottom: 16px; padding: 18px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.platform-panel-title { align-items: start; margin-bottom: 14px; }
.platform-panel h3 { margin: 0; font-size: 15px; font-weight: 600; }
.platform-panel h4 { margin: 0; font-size: 14px; font-weight: 600; }
.platform-panel-title p { font-size: 11px; }
.platform-histogram { min-height: 170px; display: grid; align-content: center; gap: 11px; }
.platform-histogram > div { display: grid; grid-template-columns: 72px minmax(0, 1fr) 28px; align-items: center; gap: 9px; color: #757e77; font-size: 10px; }
.platform-histogram progress, .platform-dimensions progress { width: 100%; height: 8px; border: 0; appearance: none; background: #edf0ec; }
.platform-histogram progress::-webkit-progress-bar, .platform-dimensions progress::-webkit-progress-bar { background: #edf0ec; }
.platform-histogram progress::-webkit-progress-value, .platform-dimensions progress::-webkit-progress-value { background: var(--blue); }
.platform-histogram progress::-moz-progress-bar, .platform-dimensions progress::-moz-progress-bar { background: var(--blue); }
.platform-histogram b { color: #555c58; font-size: 12px; font-weight: 500; text-align: right; }
.platform-dimensions { margin: 18px 0 8px; display: flex; flex-direction: column; gap: 14px; }
.platform-dimensions button { display: grid; grid-template-columns: 92px minmax(0, 1fr) 128px 43px; gap: 8px; align-items: center; background: transparent; text-align: left; cursor: pointer; font-size: 12px; }
.platform-dimensions button:hover > span { text-decoration: underline; }
.platform-dimensions strong { display: flex; justify-content: flex-end; gap: 10px; font-size: 11px; font-weight: 500; text-align: right; font-variant-numeric: tabular-nums; }
.platform-dimensions small { color: #818980; font-size: 10px; text-align: right; }

.platform-small { margin: 0 0 13px; }
.platform-deltas { max-height: 430px; overflow: auto; }
.platform-delta-row { display: grid; grid-template-columns: 170px minmax(80px, 1fr) 72px 95px; gap: 10px; align-items: center; padding: 7px 0; font-size: 11px; }
.platform-delta-row > span { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.platform-delta-row meter { width: 100%; height: 18px; }
.platform-delta-row b { font-weight: 500; text-align: right; }
.platform-delta-row small { color: #7f8a76; font-size: 10px; text-align: right; }

.platform-task-filters { display: grid; grid-template-columns: minmax(100px, 1fr) 145px 145px; align-items: end; gap: 10px; margin: 14px 0; }
.platform-heat-legend { display: flex; gap: 14px; margin: 14px 0 10px; color: #68716b; font-size: 10px; }
.platform-heat-legend i { border: 1px solid #ccd0cb; }
.platform-heat-legend .missing { background: #fff; border-style: dashed; }
.platform-heat-legend .zero { background: var(--zero); }
.platform-heat-legend .low { background: var(--blue-soft); }
.platform-heat-legend .high { background: var(--blue); }
.platform-heatmap { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 7px; }
.platform-heat { min-width: 0; padding: 10px 8px; display: grid; grid-template-columns: 1fr auto; gap: 8px 4px; border: 1px solid transparent; border-radius: 4px; text-align: left; cursor: pointer; }
.platform-heat span { min-height: 32px; grid-column: 1 / -1; overflow-wrap: anywhere; font-size: 11px; line-height: 1.45; }
.platform-heat b { font-size: 16px; font-weight: 550; font-variant-numeric: tabular-nums; }
.platform-heat small { grid-column: 1 / -1; align-self: end; opacity: .8; font-size: 10px; }
.platform-heat.missing { color: #929991; border: 1px dashed #ccd1ca; background: #fff; }
.platform-heat.zero { color: #596456; background: var(--zero); }
.platform-heat.low { color: #28577e; background: var(--blue-soft); }
.platform-heat.high { color: #fff; background: var(--blue); }
.platform-heat.chosen, .platform-heat:hover { outline: 2px solid #303a32; outline-offset: 1px; }
.platform-task-detail, .platform-episode-detail { margin-top: 18px; padding: 16px; border: 1px solid #d8ded4; border-radius: 4px; background: var(--soft); }
.platform-task-detail code { color: #727c6e; font-size: 11px; }
.platform-task-detail p, .platform-episode-detail p { margin: 8px 0 14px; color: #6c796f; font-size: 12px; }
.task-score { text-align: right; }
.task-score strong { display: block; font-size: 24px; font-weight: 550; }
.task-score small { color: #788471; font-size: 10px; }

.episode-filter { width: 150px; }
.platform-table-scroll { overflow: auto; }
.platform-table { width: 100%; min-width: 610px; border-collapse: collapse; font-size: 12px; }
.platform-table th { padding: 9px 10px; border-bottom: 1px solid #dce1d6; color: #777f74; background: #f6f7f4; font-size: 11px; font-weight: 500; text-align: left; white-space: nowrap; }
.platform-table td { padding: 10px; border-bottom: 1px solid #e9ece4; font-variant-numeric: tabular-nums; white-space: nowrap; }
.platform-table button { background: transparent; text-align: left; cursor: pointer; }
.platform-table button:hover > span { text-decoration: underline; }
.platform-table td small { display: block; margin-top: 2px; color: #8a9284; font-size: 10px; }
.platform-table tr.chosen { background: #f1f4ee; }
.platform-outcome { font-size: 11px; }
.platform-outcome.partial_score { color: #65727a; }
.platform-outcome.zero_score { color: #818782; }
.platform-pagination { margin-top: 12px; color: #747f76; font-size: 11px; }
.platform-pagination > div { display: flex; gap: 7px; }
.platform-episode-detail dl, .platform-config dl { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 10px 18px; margin-top: 16px; font-size: 12px; }
.platform-episode-detail dt, .platform-config dt { color: #848c86; }
.platform-episode-detail dd, .platform-config dd { margin: 0; overflow-wrap: anywhere; }
.platform-episode-media { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; margin-top: 18px; }
.platform-episode-media figure { margin: 0; }
.platform-episode-media video { display: block; width: 100%; max-height: 440px; background: #161916; border-radius: 8px; }
.platform-episode-media figcaption { margin-top: 7px; color: #747f76; font-size: 11px; }
.platform-config summary { color: #59645d; font-size: 13px; cursor: pointer; }
.platform-config pre { margin: 0; white-space: pre-wrap; font-size: 11px; line-height: 1.7; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (min-width: 1600px) {
  .platform-heatmap { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (max-width: 1150px) {
  .platform-layout { grid-template-columns: 235px minmax(0, 1fr); gap: 16px; }
  .platform-main { padding: 24px 18px 50px; }
  .platform-heatmap { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .platform-charts { grid-template-columns: 1fr; }
  .platform-kpis strong { font-size: 23px; }
  .platform-kpis article { padding: 12px 10px; }
  .platform-run-heading { flex-wrap: wrap; }
  .compare-field { width: 100%; max-width: none; }
  .platform-delta-row { grid-template-columns: 135px minmax(65px, 1fr) 60px; }
  .platform-delta-row small { display: none; }
}

@media (max-width: 760px) {
  .masthead-inner { padding: 13px 14px; flex-wrap: wrap; }
  .masthead-actions { gap: 8px; flex-wrap: wrap; }
  .connection { display: none; }
  .platform-heading { align-items: start; flex-direction: column; gap: 10px; }
  .platform-heading h1 { font-size: 23px; }
  .platform-refresh { width: 100%; align-items: start; }
  .platform-layout { grid-template-columns: 1fr; }
  .platform-sidebar { position: static; }
  .platform-run-list { max-height: 235px; min-height: 100px; }
  .platform-run { padding: 10px 12px; }
  .platform-run code { margin: 4px 0; }
  .platform-run small { display: none; }
  .platform-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .platform-kpis article:nth-child(2) { border-right: 0; }
  .platform-kpis article:nth-child(-n + 2) { border-bottom: 1px solid #e3e4e1; }
  .platform-task-filters { grid-template-columns: 1fr 1fr; }
  .platform-task-filters > .field:first-child { grid-column: 1 / -1; }
  .platform-heatmap { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .platform-panel { padding: 14px; }
  .platform-main { padding: 20px 12px 40px; }
  .platform-panel-title { gap: 10px; }
  .platform-meta { flex-wrap: wrap; gap: 8px; }
  .platform-delta-row { grid-template-columns: 110px minmax(40px, 1fr) 57px; gap: 6px; }
  .platform-config dl, .platform-episode-detail dl { grid-template-columns: 90px minmax(0, 1fr); gap: 10px; }
}

@media (max-width: 460px) {
  .platform-kpis { grid-template-columns: 1fr; }
  .platform-kpis article { border-right: 0; border-bottom: 1px solid #e3e4e1; }
  .platform-kpis article:last-child { border-bottom: 0; }
  .platform-dimensions button { grid-template-columns: 76px minmax(0, 1fr) 38px; }
  .platform-dimensions progress { display: none; }
  .platform-dimensions strong { justify-content: flex-start; gap: 8px; }
  .platform-heatmap { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .platform-panel-title { align-items: stretch; flex-direction: column; }
  .episode-filter { width: 100%; }
  .platform-pagination { align-items: start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

.compare-picker { display: grid; gap: 8px; }
.compare-picker .field, .compare-picker select, .compare-picker input { width: 100%; min-width: 0; }
#more-runs { width: 100%; margin-top: 10px; }
.platform-comparison details { margin-top: 16px; }

.platform-run-top b { min-width: 0; overflow-wrap: anywhere; }
.platform-list-meta { gap: 8px; flex-wrap: wrap; }