/* 中文：沿用主站设计，只限定 Analytics 样式，避免改变实时地图和行程规划。
   English: Reuse the main site's design; scope overrides to Analytics to protect the live planner. */
.analytics-page main {
  width: 100%;
}
.analytics-page .analytics-intro,
.analytics-page .analytics-section {
  scroll-margin-top: 0;
}
.analytics-intro,
.analytics-section {
  max-width: 1180px;
  margin: auto;
  padding: 88px 24px;
  scroll-margin-top: 116px;
}
.analytics-intro {
  max-width: 920px;
  text-align: center;
  padding-top: 96px;
}
.analytics-intro h1 {
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.045em;
}
.analytics-page .intro-lead {
  color: var(--muted);
  font-size: 22px;
  line-height: 1.45;
  max-width: 780px;
  margin: 24px auto;
}
.analytics-section h2 {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.15;
  max-width: 900px;
  margin-bottom: 24px;
}
.analytics-section .intro-lead {
  margin-left: 0;
}
.analytics-page h3 {
  font-size: 24px;
  line-height: 1.25;
  margin-bottom: 14px;
}
.analytics-page p {
  line-height: 1.55;
}
.scope-note {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  margin-top: 24px;
}
.catalog-section,
.method-section {
  border-top: 1px solid var(--hairline);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.feature-card,
.analytics-panel,
.research-status,
.metric-card {
  border: 1px solid var(--hairline);
  border-radius: 18px;
  padding: 28px;
  background: var(--white);
  min-width: 0;
}
.feature-card p {
  color: var(--muted);
  margin: 12px 0;
}
.feature-card .feature-number {
  color: var(--blue);
  font-size: 14px;
  margin: 0 0 12px;
}
.feature-card .feature-state {
  font-size: 13px;
  padding: 4px 10px;
  background: var(--parchment);
  border-radius: 20px;
  display: inline-block;
}
.feature-card.feature-open {
  border-color: var(--blue);
}
.feature-card a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  margin-top: 12px;
  color: var(--blue);
}
.research-status {
  background: var(--parchment);
  margin: 28px 0;
}
.research-status strong {
  display: block;
  margin-bottom: 8px;
}
.route-controls {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin: 28px 0;
}
.route-controls select {
  width: auto;
  min-width: 180px;
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: white;
  color: var(--ink);
  font: inherit;
}
.history-controls { border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); padding: 18px 0; }
.history-source { background: var(--parchment); }
.history-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); gap: 24px; margin: 28px 0 48px; }
.history-card { border: 1px solid var(--hairline); border-radius: 18px; padding: 28px; background: var(--white); min-width: 0; }
.history-card h3 { margin-bottom: 8px; }
.history-card > p { color: var(--muted); margin-bottom: 18px; }
.route-map-svg { display: block; width: 100%; min-height: 370px; background: var(--parchment); border-radius: 12px; }
.route-map-svg .route-path { fill: none; stroke: var(--blue); stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.route-map-svg .route-path:nth-of-type(2n) { stroke: #ff9500; }
.route-map-svg .route-path.is-all { stroke: var(--blue); opacity: .68; }
.kpi-grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.kpi { border-top: 1px solid var(--hairline); padding-top: 12px; }
.kpi strong { display: block; font-size: 28px; letter-spacing: -.03em; }
.kpi span { color:var(--muted); font-size:14px; line-height:1.35; }
.boxplot { position: relative; height: 98px; margin-top: 28px; }
.boxplot-line { position:absolute; left: 5%; right: 5%; top: 42px; height: 2px; background: var(--ink); }
.boxplot-range { position:absolute; top: 26px; height: 34px; background: #d6e8fb; border: 1px solid var(--blue); border-radius: 4px; }
.boxplot-median { position:absolute; top: 18px; height: 50px; width: 3px; background: var(--ink); }
.boxplot-tick { position:absolute; top: 31px; height: 24px; width: 2px; background: var(--ink); }
.boxplot-axis { display:flex; justify-content:space-between; font-size:12px; color:var(--muted); padding-top:72px; }
.heatmap-scroll { overflow-x:auto; }
.heatmap { display:grid; grid-template-columns: 74px repeat(24, 28px); gap:3px; min-width: 780px; align-items:center; }
.heatmap-label { font-size:12px; color:var(--muted); text-align:right; padding-right:6px; }
.heatmap-hour { font-size:10px; color:var(--muted); text-align:center; overflow:visible; }
.heatmap-cell { width:28px; height:28px; border-radius:3px; border:1px solid rgba(0,0,0,.04); }
.heatmap-cell.no-data { background:#f2f2f4; }
.history-empty { color:var(--muted); padding:32px 0; }
.construction-section { border-top: 1px solid var(--hairline); }
.construction-source { background: var(--parchment); }
.construction-overview-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr); gap: 24px; margin: 28px 0; }
.construction-card { border: 1px solid var(--hairline); border-radius: 18px; padding: 28px; background: var(--white); }
.construction-card > p { color: var(--muted); margin-bottom: 18px; }
.construction-ranking .rank-list { display: grid; gap: 10px; margin-top: 20px; }
.rank-row { display: grid; grid-template-columns: minmax(96px, 1fr) minmax(120px, 2.2fr) 42px; align-items: center; gap: 10px; font-size: 13px; }
.rank-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rank-bar { display: flex; min-height: 14px; overflow: hidden; border-radius: 99px; background: #f0f0f2; }
.rank-bar i { display: block; min-width: 0; }
.rank-direct { background: #ff7a00; }
.rank-nearby { background: #8e8e93; }
.rank-row strong { text-align: right; font-variant-numeric: tabular-nums; }
.construction-kpis .kpi-grid { grid-template-columns: 1fr; gap: 18px; }
.construction-kpis .kpi { border-top: 0; border-bottom: 1px solid var(--hairline); padding: 0 0 16px; }
.construction-kpis .kpi:last-child { border-bottom: 0; padding-bottom: 0; }
.construction-kpis .kpi strong { font-size: 32px; }
.construction-map-wrap { position: relative; margin: 20px 0 28px; overflow: hidden; border: 1px solid var(--hairline); border-radius: 14px; background: var(--parchment); }
.construction-map { display: block; width: 100%; min-height: 390px; background-image: linear-gradient(125deg, transparent 0 47%, rgba(0,0,0,.045) 47.1% 47.35%, transparent 47.45%), linear-gradient(40deg, transparent 0 68%, rgba(0,0,0,.035) 68.1% 68.3%, transparent 68.4%); }
.construction-route { fill: none; stroke: var(--blue); stroke-width: 6; stroke-linecap: round; stroke-linejoin: round; }
.construction-event { stroke: white; stroke-width: 2; opacity: .88; }
.construction-event-direct { fill: #ff7a00; }
.construction-event-nearby { fill: #6d6d72; opacity: .58; }
.city-event { stroke: white; stroke-width: .45; opacity: .72; }
.city-event-work { fill: #ff7a00; }
.city-event-closure { fill: var(--blue); }
.city-event-permit { fill: #6d6d72; }
.construction-legend { position: absolute; right: 14px; bottom: 14px; display: flex; gap: 14px; flex-wrap: wrap; padding: 9px 12px; border: 1px solid var(--hairline); border-radius: 10px; background: rgba(255,255,255,.94); font-size: 12px; color: var(--muted); }
.construction-legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }
.legend-direct { background: #ff7a00; }
.legend-closure { background: var(--blue); }
.legend-nearby { background: #6d6d72; }
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 20px 0;
}
.metric-card strong {
  font-size: 32px;
  display: block;
  margin: 10px 0;
}
.metric-card p {
  font-size: 14px;
  color: var(--muted);
}
.analytics-panel {
  margin: 24px 0;
}
.analytics-panel > p {
  color: var(--muted);
}
.table-scroll {
  overflow-x: auto;
  margin: 24px 0;
}
.analytics-page table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  text-align: left;
}
.analytics-page th,
.analytics-page td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--hairline);
  white-space: nowrap;
}
.question-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-top: 48px;
}
.question-grid p {
  color: var(--muted);
}
.question-grid h3 {
  font-size: 20px;
}
.method-steps {
  padding: 0;
  margin: 32px 0;
  list-style: none;
}
.analytics-page .method-steps li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--hairline);
  line-height: 1.55;
}
.analytics-page .method-steps li:first-child {
  border-top: 0;
}
.analytics-page .method-step-number {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--blue);
  border-radius: 50%;
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
}
.analytics-page .method-steps strong {
  display: block;
  margin-bottom: 6px;
  font-size: 19px;
  line-height: 1.3;
}
.analytics-page .method-steps p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
}
.analytics-panel summary {
  cursor: pointer;
  min-height: 44px;
  font-weight: 600;
  display: flex;
  align-items: center;
}
#method-details p {
  margin: 18px 0;
}
.analytics-page footer {
  gap: 20px;
  flex-wrap: wrap;
}
@media (max-width: 834px) {
  .question-grid {
    grid-template-columns: 1fr;
  }
  .analytics-page .intro-lead {
    font-size: 20px;
  }
}
@media (max-width: 640px) {
  .analytics-page .global-nav nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .analytics-intro,
  .analytics-section {
    padding: 52px 20px;
  }
  .feature-grid,
  .metrics-grid,
  .history-grid,
  .construction-overview-grid {
    grid-template-columns: 1fr;
  }
  .feature-card,
  .analytics-panel,
  .research-status,
  .metric-card {
    padding: 22px;
  }
  .analytics-page .sub-nav,
  .analytics-page .sub-nav-inner {
    min-height: 52px;
  }
  .analytics-page .sub-nav-inner {
    display: flex;
    gap: 12px;
  }
  .analytics-page .sub-nav-inner > span {
    font-size: 13px;
  }
  .analytics-page footer {
    padding: 32px 20px;
  }
  .route-map-svg { min-height: 280px; }
  .construction-card { padding: 22px; }
  .construction-map { min-height: 290px; }
}