/* ==================================================
   画语 · 万千眼  ·  styles.css
   ================================================== */

:root {
  --paper:        #F2EDE3;
  --paper-2:      #E9E1CF;
  --paper-3:      #DCD2BC;
  --ink:          #1A1612;
  --ink-2:        #3D352C;
  --ink-3:        #6E6354;
  --ink-4:        #9D9384;
  --rule:         #C2B59C;
  --rule-soft:    #D8CDB4;
  --cinnabar:     #B33B24;
  --cinnabar-2:   #8C2C18;
  --ochre:        #B07B3A;
  --jade:         #4F6B5D;

  --serif-zh: 'Noto Serif SC', 'Songti SC', 'STSong', serif;
  --sans-zh:  'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --serif-en: 'Cormorant Garamond', 'EB Garamond', Georgia, serif;
  --mono:     'JetBrains Mono', 'Menlo', 'Consolas', monospace;

  --gutter: 40px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans-zh);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "kern", "liga";
}

body::before {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none; z-index: 1;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.10 0 0 0 0 0.08 0 0 0 0 0.06 0 0 0 0.07 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: 0.5;
  mix-blend-mode: multiply;
}
.app { position: relative; z-index: 2; }

.serif-zh  { font-family: var(--serif-zh); }
.serif-en  { font-family: var(--serif-en); font-style: italic; }
.mono      { font-family: var(--mono); }
.eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-3);
}

a, button { color: inherit; font: inherit; background: none; border: none; cursor: pointer; padding: 0; }

::selection { background: var(--cinnabar); color: var(--paper); }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--rule); }
::-webkit-scrollbar-thumb:hover { background: var(--ink-4); }

/* ============= masthead ============= */
.masthead {
  border-bottom: 1.5px solid var(--ink);
  padding: 22px var(--gutter) 18px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 40px;
}
.marque { display: flex; align-items: baseline; gap: 14px; }
.marque .title-zh {
  font-family: var(--serif-zh);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1;
}
.marque .seal {
  width: 30px; height: 30px;
  background: var(--cinnabar);
  color: var(--paper);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--serif-zh);
  font-size: 15px;
  font-weight: 700;
  border-radius: 2px;
  transform: rotate(-4deg);
  margin: 0 6px 0 2px;
  box-shadow: 1px 1px 0 rgba(140, 44, 24, 0.3);
}
.marque .title-en {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.02em;
  font-weight: 400;
}
.masthead .meta {
  text-align: center;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1.9;
}
.masthead .status {
  display: flex; flex-direction: column; align-items: flex-end;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  gap: 4px;
}
.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--jade);
  display: inline-block;
  margin-right: 6px; vertical-align: 1px;
  box-shadow: 0 0 5px var(--jade);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 0.7; } 50% { opacity: 1; } }

/* ============= subhead ============= */
.subhead {
  border-bottom: 1px solid var(--rule);
  padding: 0 var(--gutter);
  display: flex;
  align-items: stretch;
}
.tab-btn {
  padding: 16px 30px 14px;
  border-right: 1px solid var(--rule);
  color: var(--ink-3);
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  transition: color 0.2s, background 0.2s;
  text-align: left;
}
.tab-btn:first-child { border-left: 1px solid var(--rule); }
.tab-btn .volume {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--ink-4);
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.tab-btn .name {
  font-family: var(--serif-zh);
  font-size: 14px;
  letter-spacing: 0.16em;
  font-weight: 500;
}
.tab-btn:hover { color: var(--ink); background: var(--paper-2); }
.tab-btn:hover .volume { color: var(--ink-3); }
.tab-btn.active { color: var(--ink); }
.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 2px;
  background: var(--cinnabar);
}
.tab-btn.active .volume { color: var(--cinnabar); }
.subhead .pull {
  margin-left: auto;
  display: flex; align-items: center;
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 13px;
  color: var(--ink-3);
  padding: 0 4px;
}

/* ============= tab pane ============= */
.tab-pane { display: none; padding: 36px var(--gutter); }
.tab-pane.active { display: block; animation: rise 0.45s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ============= visual placeholder ============= */
.visual-placeholder {
  position: relative;
  background-color: var(--paper-2);
  background-image:
    linear-gradient(135deg, var(--rule-soft) 1px, transparent 1px),
    linear-gradient(45deg,  var(--rule-soft) 1px, transparent 1px);
  background-size: 12px 12px;
  border: 1px solid var(--rule);
  outline: 1px solid var(--paper);
  outline-offset: -5px;
}
.visual-placeholder::after {
  content: attr(data-hint);
  position: absolute;
  inset: 14px;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--ink-3);
  background: rgba(242, 237, 227, 0.94);
  padding: 14px;
  white-space: pre-line;
}
.visual-placeholder::before {
  content: '';
  position: absolute;
  top: 8px; left: 8px;
  width: 12px; height: 12px;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}
/* 接入真实图片后,关闭占位纹理/提示/裁切角 */
.visual-placeholder.has-img {
  background-image: none;
  background-color: transparent;
}
.visual-placeholder.has-img::after,
.visual-placeholder.has-img::before { content: none; }

.plate-caption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-top: 1px solid var(--ink);
  padding-top: 6px;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  text-transform: uppercase;
}

/* ============= TAB 1 · 馆方工作台 ============= */
.dash {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 48px;
  align-items: start;
}

.index { border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); padding: 14px 0; }
.index-head {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 0 4px 12px;
}
.index-head .label {
  font-family: var(--serif-zh);
  font-size: 14px; font-weight: 500;
  letter-spacing: 0.14em;
}
.index-head .label .en {
  font-family: var(--serif-en); font-style: italic;
  font-size: 11px; color: var(--ink-3); margin-left: 8px; font-weight: 400;
}
.index-head .count {
  font-family: var(--mono); font-size: 10px;
  color: var(--ink-3); letter-spacing: 0.14em;
}
.add-btn {
  display: block; width: 100%; text-align: left;
  padding: 10px 4px;
  border-top: 1px dashed var(--rule);
  border-bottom: 1px dashed var(--rule);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--cinnabar);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.add-btn:hover { color: var(--cinnabar-2); background: var(--paper-2); }

.index-list { list-style: none; }
.work {
  display: grid;
  grid-template-columns: 32px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 12px 4px;
  border-bottom: 1px dashed var(--rule);
  cursor: pointer;
  position: relative;
}
.work:hover { background: var(--paper-2); }
.work.active { background: var(--paper-2); }
.work.active::before {
  content: '';
  position: absolute;
  left: -16px; top: 0; bottom: 0;
  width: 3px; background: var(--cinnabar);
}
.work .num {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
}
.work .body .name {
  font-family: var(--serif-zh);
  font-size: 14px;
  letter-spacing: 0.12em;
  margin-bottom: 2px;
  font-weight: 500;
}
.work .body .meta {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
}
.work .status {
  font-family: var(--serif-zh);
  font-size: 11px;
  letter-spacing: 0.18em;
}
.status.done    { color: var(--jade); }
.status.working { color: var(--cinnabar); animation: pulse 1.4s ease-in-out infinite; }
.status.pending { color: var(--ink-4); }

/* selected work */
.selected-head {
  border-bottom: 1.5px solid var(--ink);
  padding-bottom: 18px;
  margin-bottom: 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: end;
}
.selected-head .acc {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--cinnabar);
  margin-bottom: 8px;
  display: flex; align-items: center; gap: 10px;
}
.selected-head .acc::before {
  content: ''; width: 18px; height: 1px; background: var(--cinnabar);
}
.selected-head h1 {
  font-family: var(--serif-zh);
  font-size: 46px;
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.1;
  margin-bottom: 6px;
}
.selected-head .title-en {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 18px;
  color: var(--ink-3);
  letter-spacing: 0.02em;
  font-weight: 400;
}
.selected-head .meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  text-align: right;
  letter-spacing: 0.12em;
  line-height: 1.95;
}
.selected-head .meta .pill {
  display: inline-block;
  border: 1px solid var(--ink);
  padding: 1px 7px;
  margin-left: 5px;
  text-transform: uppercase;
}

/* painting plate */
.painting-plate {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
.plate .frame {
  position: relative;
  padding: 14px;
  background: var(--paper-2);
  border: 1px solid var(--ink);
}
.plate .frame .visual-placeholder {
  aspect-ratio: 4/3;
  width: 100%;
}
.painting-plate .description {
  font-family: var(--serif-zh);
  font-size: 15.5px;
  line-height: 2;
  color: var(--ink-2);
  letter-spacing: 0.05em;
}
.painting-plate .description::first-letter {
  font-family: var(--serif-zh);
  font-size: 58px;
  float: left;
  line-height: 0.95;
  padding-right: 10px;
  padding-top: 4px;
  color: var(--cinnabar);
  font-weight: 600;
}
.painting-plate .note {
  margin-top: 18px;
  padding-left: 16px;
  border-left: 2px solid var(--cinnabar);
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.7;
}

/* semantics */
.semantics { margin-bottom: 40px; }
.semantics-head {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 16px;
  display: flex; justify-content: space-between;
}
.semantics-head .right { color: var(--cinnabar); }
.semantics-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--rule);
}
.sem-cell {
  padding: 16px 18px;
  border-right: 1px solid var(--rule);
  position: relative;
}
.sem-cell:last-child { border-right: none; }
.sem-cell .label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 10px;
  display: flex; justify-content: space-between;
}
.sem-cell .label .zh {
  font-family: var(--serif-zh);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: none;
  color: var(--ink);
}
.sem-cell .value {
  font-family: var(--serif-zh);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.45;
  margin-bottom: 14px;
  letter-spacing: 0.06em;
}
.sem-cell .score {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
  letter-spacing: 0.1em;
}
.sem-cell .score .pct {
  font-size: 14px;
  color: var(--cinnabar);
  font-weight: 500;
}
.sem-cell .bar {
  height: 1px;
  background: var(--rule);
  position: relative;
}
.sem-cell .bar::after {
  content: '';
  position: absolute;
  left: 0; top: -1px;
  height: 3px;
  background: var(--cinnabar);
  width: var(--w, 50%);
}

/* senses */
.senses { margin-bottom: 36px; }
.senses-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1.5px solid var(--ink);
  padding-bottom: 12px;
  gap: 16px;
}
.senses-head .left { display: flex; align-items: baseline; gap: 16px; }
.senses-head h3 {
  font-family: var(--serif-zh);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.18em;
}
.senses-head .en {
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--ink-3);
  font-size: 15px;
  font-weight: 400;
}
.senses-head .right { display: flex; align-items: center; gap: 22px; }
.senses-head .stats {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
}
.senses-head .stats b { color: var(--cinnabar); font-weight: 500; }
.publish-btn {
  font-family: var(--serif-zh);
  font-size: 13px;
  letter-spacing: 0.2em;
  background: var(--cinnabar);
  color: var(--paper);
  padding: 12px 24px;
  transition: background 0.2s;
  font-weight: 500;
}
.publish-btn:hover { background: var(--cinnabar-2); }

.senses-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-left: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.sense {
  padding: 26px 28px;
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
}
.sense:nth-child(2n) { border-right: none; }
.sense:nth-last-child(-n+2) { border-bottom: none; }

.sense-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--rule);
}
.sense-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--cinnabar);
}
.sense-name {
  font-family: var(--serif-zh);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.18em;
  flex: 1;
  margin: 0 14px;
}
.sense-meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
}
.sense .play-row {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 14px;
}
.play-btn {
  width: 34px; height: 34px;
  border: 1px solid var(--ink);
  background: var(--paper);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--mono);
  font-size: 11px;
  transition: all 0.15s;
}
.play-btn:hover { background: var(--ink); color: var(--paper); }
.waveform {
  flex: 1;
  height: 26px;
  display: flex; align-items: center; gap: 2px;
}
.waveform .bar {
  flex: 1;
  background: var(--ink-3);
  opacity: 0.45;
}
.waveform .bar.played { background: var(--cinnabar); opacity: 1; }

.sense-excerpt {
  font-family: var(--serif-zh);
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--ink-2);
  padding-left: 14px;
  border-left: 2px solid var(--rule);
  letter-spacing: 0.03em;
}
.sense .relief-img {
  height: 150px;
  margin-bottom: 14px;
}
.tag-row {
  display: flex; flex-wrap: wrap; gap: 6px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.tag-row .tag {
  border: 1px solid var(--rule);
  padding: 3px 9px;
  color: var(--ink-2);
  background: var(--paper);
}
.qa-q-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  margin-bottom: 4px;
  text-transform: uppercase;
}
.qa-a-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--cinnabar);
  margin: 10px 0 4px;
  text-transform: uppercase;
}

/* log */
.log {
  margin-top: 32px;
  border: 1.5px solid var(--ink);
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}
.log-cell {
  padding: 16px 20px;
  border-right: 1px solid var(--rule);
}
.log-cell:last-child {
  border-right: none;
  background: var(--ink);
  color: var(--paper);
}
.log-cell .label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 8px;
}
.log-cell:last-child .label { color: rgba(242,237,227,0.6); }
.log-cell .value {
  font-family: var(--mono);
  font-size: 19px;
  font-weight: 400;
  letter-spacing: 0.04em;
}
.log-cell .ok { color: var(--jade); }
.log-cell .total { color: var(--paper); font-weight: 500; font-size: 20px; }

/* ============= TAB 2 · 视障用户体验 ============= */
.experience { max-width: 940px; margin: 0 auto; }

.exp-head {
  text-align: center;
  padding: 24px 0 44px;
  border-bottom: 1px solid var(--rule);
}
.exp-head .eyebrow { margin-bottom: 18px; display: inline-block; }
.exp-head h2 {
  font-family: var(--serif-zh);
  font-size: 60px;
  font-weight: 500;
  letter-spacing: 0.28em;
  line-height: 1;
  margin-bottom: 14px;
  text-indent: 0.28em;
}
.exp-head .en {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 18px;
  color: var(--ink-3);
}
.exp-head .scene {
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.exp-head .scene span {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
}

.console {
  margin-top: 44px;
  padding: 36px;
  border: 1.5px solid var(--ink);
  background: var(--paper-2);
  position: relative;
}
.console::before, .console::after {
  content: '';
  position: absolute;
  background: var(--ink);
  width: 9px; height: 9px;
}
.console::before { top: -5px; left: -5px; }
.console::after { bottom: -5px; right: -5px; }
.console .relief-plate {
  aspect-ratio: 16/9;
  margin-bottom: 26px;
}

.timeline {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  margin-bottom: 22px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  position: relative;
  padding-top: 14px;
}
.timeline .progress {
  height: 1px;
  background: var(--rule);
  position: relative;
}
.timeline .progress::after {
  content: '';
  position: absolute;
  left: 0; top: -1px;
  height: 3px;
  width: 30%;
  background: var(--cinnabar);
}
.timeline .progress::before {
  content: '';
  position: absolute;
  left: 30%; top: -4px;
  width: 9px; height: 9px;
  background: var(--cinnabar);
  border-radius: 50%;
  transform: translateX(-4px);
}
.timeline .pos-label {
  position: absolute;
  left: calc(30% + 60px);
  top: 0;
  transform: translateX(-50%);
  white-space: nowrap;
  background: var(--paper-2);
  padding: 0 8px;
  font-size: 10px;
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--ink-2);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.controls {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  padding-top: 22px;
  border-top: 1px dashed var(--rule);
}
.controls .buttons { display: flex; gap: 10px; }
.controls .buttons .play-btn { width: 42px; height: 42px; font-size: 14px; }
.controls .buttons .play-btn.main {
  background: var(--ink); color: var(--paper);
  width: 52px; height: 52px;
}
.led-row {
  display: flex; align-items: center; justify-content: center;
  gap: 26px;
}
.led-item {
  display: flex; align-items: center; gap: 7px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.led {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--rule);
  display: inline-block;
}
.led.on { background: var(--cinnabar); box-shadow: 0 0 5px var(--cinnabar); }

.sliders {
  display: flex; flex-direction: column; gap: 8px;
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--ink-3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.slider-row { display: flex; align-items: center; gap: 10px; }
.sliders input[type="range"] {
  -webkit-appearance: none;
  width: 92px; height: 1px;
  background: var(--rule);
  outline: none;
}
.sliders input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px; height: 10px;
  background: var(--cinnabar);
  border-radius: 50%;
  cursor: pointer;
}

.conversation { margin-top: 52px; }
.conv-head {
  border-bottom: 1.5px solid var(--ink);
  padding-bottom: 14px;
  margin-bottom: 28px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.conv-head .label {
  font-family: var(--serif-zh);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 0.18em;
}
.conv-head .label .en {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-3);
  margin-left: 14px;
  font-weight: 400;
}
.conv-head .stats {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.transcript {
  margin-bottom: 26px;
  max-height: 380px;
  overflow-y: auto;
  scroll-behavior: smooth;
  padding-right: 8px;
}
.qa { padding: 14px 0; border-bottom: 1px dashed var(--rule); }
.qa:first-child { padding-top: 0; }
.qa .who {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 8px;
  display: flex; align-items: center; gap: 10px;
}
.qa .who::before { content: ''; width: 14px; height: 1px; background: var(--ink-3); }
.qa.a .who { color: var(--cinnabar); }
.qa.a .who::before { background: var(--cinnabar); }
.qa .text {
  font-family: var(--serif-zh);
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--ink);
  letter-spacing: 0.04em;
  padding-left: 24px;
}
.qa.a .text {
  color: var(--ink-2);
  border-left: 2px solid var(--cinnabar);
  padding-left: 22px;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  margin-bottom: 16px;
  border-bottom: 1.5px solid var(--ink);
}
.input-row input {
  border: none;
  background: transparent;
  font-family: var(--serif-zh);
  font-size: 16px;
  padding: 14px 4px;
  outline: none;
  color: var(--ink);
  letter-spacing: 0.04em;
}
.input-row input::placeholder {
  color: var(--ink-4);
  font-style: italic;
  font-family: var(--serif-en);
  font-size: 15px;
}
.send-btn {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  background: var(--ink);
  color: var(--paper);
  padding: 14px 24px;
  transition: background 0.15s;
  font-weight: 500;
}
.send-btn:hover { background: var(--cinnabar); }

.suggestions { display: flex; flex-wrap: wrap; gap: 8px; }
.suggestions .chip {
  font-family: var(--serif-zh);
  font-size: 12.5px;
  border: 1px solid var(--rule);
  padding: 5px 12px;
  color: var(--ink-3);
  background: transparent;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: all 0.15s;
}
.suggestions .chip:hover {
  border-color: var(--ink);
  color: var(--ink);
  background: var(--paper-2);
}

.aux-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 44px;
  padding-top: 32px;
  border-top: 1px solid var(--rule);
}
.aux-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 14px 0;
}
.aux-card .body .name {
  font-family: var(--serif-zh);
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 4px;
  letter-spacing: 0.12em;
}
.aux-card .body .desc {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}
.toggle {
  width: 40px; height: 22px;
  border: 1px solid var(--ink);
  position: relative;
  cursor: pointer;
  background: var(--paper);
  transition: background 0.2s;
}
.toggle::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  background: var(--ink);
  transition: all 0.2s;
}
.toggle.on { background: var(--ink); }
.toggle.on::after { left: 20px; background: var(--paper); }
.action-btn {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  padding: 9px 18px;
  background: transparent;
  transition: all 0.15s;
}
.action-btn:hover { background: var(--ink); color: var(--paper); }

/* ============= TAB 3 · 数据度量 ============= */
.metrics .section-mark {
  display: flex; align-items: baseline; gap: 18px;
  border-bottom: 1.5px solid var(--ink);
  padding-bottom: 10px;
  margin-bottom: 32px;
}
.section-mark .num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--cinnabar);
}
.section-mark .title {
  font-family: var(--serif-zh);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.18em;
}
.section-mark .en {
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--ink-3);
  font-size: 15px;
  font-weight: 400;
}
.section-mark .meta {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.fig-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  margin-bottom: 40px;
}
.fig {
  padding: 32px 28px;
  border-right: 1px solid var(--rule);
}
.fig:last-child { border-right: none; }
.fig .num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--cinnabar);
  margin-bottom: 14px;
}
.fig .big {
  font-family: var(--serif-en);
  font-size: 68px;
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  font-variant-numeric: lining-nums;
  color: var(--ink);
}
.fig .big .small { font-size: 28px; color: var(--ink-3); }
.fig .label {
  font-family: var(--serif-zh);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--ink-2);
  margin-bottom: 8px;
  font-weight: 500;
}
.fig .delta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--jade);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.fig .delta.muted { color: var(--ink-3); }

.geo-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}
.panel {
  border: 1.5px solid var(--ink);
  padding: 26px;
  background: var(--paper);
}
.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 10px;
  margin-bottom: 20px;
}
.panel-head .title {
  font-family: var(--serif-zh);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.14em;
}
.panel-head .title .en {
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--ink-3);
  font-size: 13px;
  font-weight: 400;
  margin-left: 10px;
}
.panel-head .meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.map-plate { aspect-ratio: 4/3; margin-bottom: 20px; }

.legend {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px 20px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-2);
  letter-spacing: 0.06em;
}
.legend .item {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--rule);
}
.legend .item .pip {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--cinnabar);
  border-radius: 50%;
  flex-shrink: 0;
}
.legend .item .pip.lg { width: 11px; height: 11px; }
.legend .item .pip.md { width: 7px; height: 7px; opacity: 0.75; }
.legend .item .pip.sm { width: 5px; height: 5px; opacity: 0.55; }
.legend .item .name {
  flex: 1;
  font-family: var(--serif-zh);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
}
.legend .item .count {
  font-family: var(--mono);
  color: var(--cinnabar);
  font-weight: 500;
}

.chart-svg { width: 100%; height: 240px; margin-bottom: 14px; }
.chart-footer {
  display: flex; justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding-top: 12px;
  border-top: 1px dashed var(--rule);
}
.chart-footer .today { color: var(--cinnabar); }

.testimonials { margin-top: 44px; }
.testimonials-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1.5px solid var(--ink);
  padding-bottom: 12px;
  margin-bottom: 32px;
}
.testimonials-head .title {
  font-family: var(--serif-zh);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.18em;
}
.testimonials-head .en {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-3);
  margin-left: 14px;
}
.testimonials-head .meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}
.testimonial { position: relative; padding-top: 22px; }
.testimonial::before {
  content: '\201C';
  font-family: var(--serif-en);
  font-size: 84px;
  line-height: 0.7;
  color: var(--cinnabar);
  position: absolute;
  top: 0;
  left: -4px;
  font-style: italic;
}
.testimonial blockquote {
  font-family: var(--serif-zh);
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-2);
  letter-spacing: 0.04em;
  margin-bottom: 18px;
  padding-left: 32px;
}
.testimonial .source {
  border-top: 1px solid var(--ink);
  padding-top: 10px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* ============= colophon ============= */
.colophon {
  margin-top: 60px;
  padding: 36px var(--gutter);
  border-top: 1.5px solid var(--ink);
  background: var(--paper-2);
}
.colophon .inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 44px;
}
.colophon .block .head {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule);
}
.colophon .block .item {
  font-family: var(--serif-zh);
  font-size: 12.5px;
  color: var(--ink-2);
  padding: 5px 0;
  letter-spacing: 0.08em;
  font-weight: 500;
}
.colophon .editorial {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.75;
  letter-spacing: 0.01em;
}
.colophon .imprint {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px dashed var(--rule);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--ink-4);
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
}