:root {
    --bg: #0a0a0c;
    --surface: #14151a;
    --surface-2: #1c1e25;
    --border: #2a2c35;
    --border-bright: #3a3d48;
    --text: #ebe8e1;
    --text-dim: #908d85;
    --text-faint: #5d5b55;
    --amber: #e8b76d;
    --amber-bright: #ffd897;
    --amber-dim: #a87f3e;
    --cyan: #6cc4d9;
    --rose: #d97a8a;
    --serif: "Fraunces", "Noto Serif SC", Georgia, serif;
    --chinese: "Noto Serif SC", serif;
    --mono: "JetBrains Mono", "SF Mono", Consolas, monospace;
  }

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

  html { background: var(--bg); }

  body {
    font-family: var(--chinese);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
    font-feature-settings: "kern", "liga";
    -webkit-font-smoothing: antialiased;
  }

  /* 整体网格背景纹理 */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
      radial-gradient(circle at 1px 1px, rgba(232, 183, 109, 0.04) 1px, transparent 0);
    background-size: 32px 32px;
    pointer-events: none;
    z-index: 0;
  }

  /* ===== Hero Section ===== */
  .hero {
    position: relative;
    padding: 80px 24px 60px;
    max-width: 1400px;
    margin: 0 auto;
    z-index: 1;
  }

  .hero-meta {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-faint);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .hero-meta::before {
    content: '';
    width: 32px;
    height: 1px;
    background: var(--amber);
  }

  .hero h1 {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(40px, 7vw, 88px);
    line-height: 1.02;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    color: var(--text);
  }

  .hero h1 em {
    font-style: italic;
    font-weight: 400;
    color: var(--amber);
    font-feature-settings: "ss01";
  }

  .hero-sub {
    font-family: var(--chinese);
    font-weight: 300;
    font-size: clamp(15px, 2vw, 18px);
    color: var(--text-dim);
    max-width: 640px;
    line-height: 1.7;
  }

  /* ===== 顶部统计 ===== */
  .stats-bar {
    max-width: 1400px;
    margin: 40px auto 0;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    position: relative;
    z-index: 1;
  }

  .stat {
    background: var(--bg);
    padding: 28px 24px;
    position: relative;
  }

  .stat-label {
    font-family: var(--mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-faint);
    margin-bottom: 12px;
  }

  .stat-value {
    font-family: var(--serif);
    font-size: 36px;
    font-weight: 400;
    line-height: 1;
    color: var(--text);
  }

  .stat-unit {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-dim);
    margin-left: 4px;
  }

  .stat-foot {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    margin-top: 8px;
  }

  /* ===== 数据新鲜度 ===== */
  .hero-fresh {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    margin-left: 16px;
    border: 1px solid var(--border-bright);
    border-radius: 999px;
    background: rgba(108, 196, 217, 0.06);
    color: var(--cyan);
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }
  .hero-fresh::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 0 0 rgba(108, 196, 217, 0.45);
    animation: fresh-pulse 2.4s ease-out infinite;
  }
  .hero-fresh:empty { display: none; }
  @keyframes fresh-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(108, 196, 217, 0.45); }
    70%  { box-shadow: 0 0 0 7px rgba(108, 196, 217, 0); }
    100% { box-shadow: 0 0 0 0 rgba(108, 196, 217, 0); }
  }

  /* ===== Personal Records ===== */
  .pr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    margin-top: 16px;
  }
  .pr-card {
    background: var(--surface);
    padding: 22px 20px;
    position: relative;
    overflow: hidden;
    transition: background 0.2s ease;
  }
  .pr-card:hover { background: var(--surface-2); }
  .pr-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--amber), transparent);
    opacity: 0;
    transition: opacity 0.3s;
  }
  .pr-card:hover::before { opacity: 1; }
  .pr-tag {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .pr-tag::before {
    content: '';
    width: 14px;
    height: 1px;
    background: var(--amber);
  }
  .pr-value {
    font-family: var(--serif);
    font-weight: 300;
    font-size: 36px;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 8px;
  }
  .pr-value small {
    font-size: 14px;
    color: var(--text-dim);
    margin-left: 4px;
    font-family: var(--mono);
    letter-spacing: 0;
  }
  .pr-meta {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    line-height: 1.45;
  }
  .pr-meta strong {
    color: var(--text-dim);
    font-weight: 400;
  }

  /* ===== 7天滚动负荷 ===== */
  .load-chart {
    width: 100%;
    height: 260px;
    display: block;
  }
  .load-legend {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 16px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
  }
  .load-legend .swatch {
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-right: 6px;
    vertical-align: middle;
  }

  /* ===== All Rides Table ===== */
  .rides-table-wrap {
    overflow-x: auto;
    margin-top: 8px;
    border-top: 1px solid var(--border);
  }
  table.rides-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-dim);
  }
  .rides-table thead th {
    text-align: right;
    padding: 14px 12px;
    border-bottom: 1px solid var(--border);
    color: var(--text-faint);
    font-weight: 400;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    cursor: pointer;
    user-select: none;
    background: var(--surface);
    position: sticky;
    top: 0;
    z-index: 2;
    white-space: nowrap;
  }
  .rides-table thead th:first-child,
  .rides-table tbody td:first-child { text-align: left; }
  .rides-table thead th:hover { color: var(--amber); }
  .rides-table thead th.sorted { color: var(--amber); }
  .rides-table thead th.sorted::after {
    content: ' ↓';
    color: var(--amber);
  }
  .rides-table thead th.sorted.asc::after { content: ' ↑'; }
  .rides-table tbody td {
    padding: 11px 12px;
    border-bottom: 1px solid rgba(42, 44, 53, 0.5);
    text-align: right;
    white-space: nowrap;
  }
  .rides-table tbody tr {
    transition: background 0.15s;
    cursor: pointer;
  }
  .rides-table tbody tr:hover {
    background: var(--surface-2);
    color: var(--text);
  }
  .rides-table .col-date { color: var(--text); }
  .rides-table .col-distance { color: var(--amber); font-weight: 500; }
  .rides-table .col-hr { color: var(--cyan); }
  .rides-table .bar-cell {
    display: inline-block;
    width: 60px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    margin-left: 8px;
    vertical-align: middle;
    overflow: hidden;
  }
  .rides-table .bar-fill {
    height: 100%;
    background: var(--amber);
    border-radius: 2px;
  }

  /* ===== 主区域 ===== */
  .main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 24px;
    position: relative;
    z-index: 1;
  }

  .section-title {
    font-family: var(--serif);
    font-weight: 300;
    font-size: 28px;
    margin-bottom: 6px;
    color: var(--text);
    letter-spacing: -0.01em;
  }

  .section-title em {
    font-style: italic;
    color: var(--amber);
  }

  .section-sub {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 28px;
  }

  /* ===== 地图 ===== */
  .map-section {
    margin-top: 24px;
  }

  .city-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border);
  }

  .city-tab {
    background: none;
    border: none;
    color: var(--text-dim);
    font-family: var(--chinese);
    font-size: 14px;
    padding: 12px 20px;
    cursor: pointer;
    position: relative;
    transition: color 0.2s;
    font-weight: 400;
  }

  .city-tab:hover {
    color: var(--text);
  }

  .city-tab.active {
    color: var(--amber);
  }

  .city-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--amber);
  }

  .city-tab .count {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    margin-left: 8px;
  }

  #map {
    width: 100%;
    height: 600px;
    background: #0a0a0c;
    border: 1px solid var(--border);
    position: relative;
  }

  /* Leaflet 修正 */
  .leaflet-container {
    background: #0a0a0c !important;
    font-family: var(--mono) !important;
  }

  .leaflet-control-zoom a {
    background: var(--surface) !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
  }

  .leaflet-control-attribution {
    background: rgba(20, 21, 26, 0.8) !important;
    color: var(--text-faint) !important;
    font-size: 9px !important;
  }

  .leaflet-control-attribution a {
    color: var(--text-dim) !important;
  }

  /* ===== 主网格(地图 + 侧栏) ===== */
  .map-grid {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 24px;
    align-items: start;
  }

  @media (max-width: 900px) {
    .map-grid {
      grid-template-columns: 1fr;
    }
    #map {
      height: 400px;
    }
  }

  .route-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    max-height: 600px;
    overflow-y: auto;
  }

  .route-panel::-webkit-scrollbar { width: 8px; }
  .route-panel::-webkit-scrollbar-track { background: var(--surface); }
  .route-panel::-webkit-scrollbar-thumb { background: var(--border); }
  .route-panel::-webkit-scrollbar-thumb:hover { background: var(--border-bright); }

  .panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-faint);
    position: sticky;
    top: 0;
    background: var(--surface);
    z-index: 2;
    display: flex;
    justify-content: space-between;
  }

  .route-item {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s;
    position: relative;
  }

  .route-item:hover {
    background: var(--surface-2);
  }

  .route-item.active {
    background: var(--surface-2);
    border-left: 2px solid var(--amber);
    padding-left: 18px;
  }

  .route-item-time {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    margin-bottom: 4px;
  }

  .route-item-title {
    font-family: var(--serif);
    font-size: 15px;
    color: var(--text);
    margin-bottom: 8px;
  }

  .route-item-stats {
    display: flex;
    gap: 16px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }

  .route-item-stats span strong {
    color: var(--amber);
    font-weight: 500;
  }

  /* ===== 详情面板 ===== */
  .detail-panel {
    margin-top: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 24px;
    display: none;
  }

  .detail-panel.visible {
    display: block;
  }

  .detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
  }

  .detail-title {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 400;
    color: var(--text);
  }

  .detail-time {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-faint);
    margin-top: 4px;
  }

  .detail-close {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-dim);
    width: 32px;
    height: 32px;
    cursor: pointer;
    font-family: var(--mono);
    font-size: 14px;
  }

  .detail-close:hover {
    color: var(--text);
    border-color: var(--border-bright);
  }

  .detail-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1px;
    background: var(--border);
    margin-bottom: 24px;
  }

  .detail-stat {
    background: var(--surface);
    padding: 16px;
  }

  .detail-stat-label {
    font-family: var(--mono);
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-faint);
    margin-bottom: 6px;
  }

  .detail-stat-value {
    font-family: var(--serif);
    font-size: 20px;
    color: var(--text);
  }

  .detail-stat-value small {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    margin-left: 3px;
  }

  /* ===== 时间分析 ===== */
  .analysis-section {
    margin-top: 80px;
  }

  .analysis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  @media (max-width: 800px) {
    .analysis-grid { grid-template-columns: 1fr; }
  }

  .chart-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 28px;
  }

  .chart-title {
    font-family: var(--serif);
    font-size: 18px;
    margin-bottom: 6px;
  }

  .chart-sub {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 24px;
  }

  /* 时段雷达 / 极坐标 */
  .hour-clock {
    width: 100%;
    aspect-ratio: 1;
    max-width: 340px;
    margin: 0 auto;
    display: block;
  }

  /* 每日柱状图 */
  .daily-chart {
    width: 100%;
    height: 200px;
    display: block;
  }

  /* 周分布 */
  .weekday-rows {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .weekday-row {
    display: grid;
    grid-template-columns: 50px 1fr 30px;
    gap: 12px;
    align-items: center;
  }

  .weekday-label {
    font-family: var(--chinese);
    font-size: 13px;
    color: var(--text-dim);
  }

  .weekday-bar-bg {
    height: 8px;
    background: var(--surface-2);
    position: relative;
  }

  .weekday-bar-fill {
    height: 100%;
    background: var(--amber);
    transition: width 0.6s ease-out;
  }

  .weekday-count {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    text-align: right;
  }

  /* ===== 注解 ===== */
  .annotation {
    margin-top: 80px;
    padding: 48px 40px;
    background: linear-gradient(180deg, var(--surface) 0%, transparent 100%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .annotation-quote {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(18px, 2.5vw, 24px);
    line-height: 1.5;
    max-width: 720px;
    color: var(--text);
    font-style: italic;
  }

  .annotation-quote::before {
    content: '"';
    color: var(--amber);
    font-size: 48px;
    line-height: 0;
    vertical-align: -16px;
    margin-right: 8px;
  }

  .annotation-meta {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-top: 24px;
  }

  /* 顶峰路线展示 */
  .highlights {
    margin-top: 60px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
  }

  .highlight-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 24px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
  }

  .highlight-card:hover {
    border-color: var(--amber-dim);
    background: var(--surface-2);
  }

  .highlight-tag {
    font-family: var(--mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--amber);
    margin-bottom: 12px;
  }

  .highlight-title {
    font-family: var(--serif);
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--text);
  }

  .highlight-stats {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
  }

  .highlight-stats > div {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }

  .highlight-stats > div strong {
    color: var(--text);
    font-size: 16px;
    font-family: var(--serif);
    font-weight: 400;
    display: block;
    margin-bottom: 2px;
  }

  /* ===== 页脚 ===== */
  footer {
    max-width: 1400px;
    margin: 80px auto 0;
    padding: 40px 24px;
    border-top: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
  }

  /* ===== 动画 ===== */
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .hero > * { animation: fadeIn 0.8s ease-out backwards; }
  .hero h1 { animation-delay: 0.1s; }
  .hero-sub { animation-delay: 0.25s; }
  .stats-bar { animation: fadeIn 0.8s 0.4s ease-out backwards; }

  /* 选中状态指示 */
  .route-item.active::before {
    content: '●';
    position: absolute;
    top: 18px;
    right: 16px;
    color: var(--amber);
    font-size: 8px;
  }

  /* 工具提示 */
  .tooltip {
    position: absolute;
    background: var(--surface);
    border: 1px solid var(--border-bright);
    padding: 8px 12px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 100;
  }

  .tooltip.visible { opacity: 1; }

  /* 城市切换徽章 */
  .city-info-box {
    margin-top: 24px;
    padding: 16px 20px;
    background: var(--surface);
    border-left: 2px solid var(--amber);
    font-family: var(--chinese);
    font-size: 13px;
    color: var(--text-dim);
    line-height: 1.7;
  }

  .city-info-box strong {
    color: var(--text);
    font-weight: 500;
  }

  /* ===== 新增:健康指标 / 月度 / 日历 ===== */
  .metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
  }

  .metric-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 20px 22px;
    position: relative;
  }

  .metric-card .metric-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  .metric-card .metric-value {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 38px;
    line-height: 1;
    color: var(--text);
    margin-bottom: 6px;
  }
  .metric-card .metric-value small {
    font-size: 14px;
    color: var(--text-dim);
    margin-left: 4px;
    font-family: var(--mono);
  }
  .metric-card .metric-sub {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }
  .metric-card .metric-spark {
    margin-top: 12px;
    height: 32px;
    width: 100%;
  }
  .metric-card .accent { color: var(--amber); }

  /* Monthly */
  .monthly-chart {
    width: 100%;
    height: 260px;
  }
  .monthly-row {
    display: grid;
    grid-template-columns: 80px 1fr 80px;
    align-items: center;
    gap: 16px;
    padding: 6px 0;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }
  .monthly-row .month-label {
    color: var(--text-faint);
    letter-spacing: 0.08em;
  }
  .monthly-row .month-bar-bg {
    position: relative;
    height: 26px;
    background: rgba(232,183,109,0.04);
    border-left: 1px solid var(--border);
  }
  .monthly-row .month-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, rgba(232,183,109,0.95), rgba(255,216,151,0.65));
    transition: width 0.6s cubic-bezier(.2,.7,.2,1);
  }
  .monthly-row .month-bar-fill.rides {
    background: linear-gradient(90deg, rgba(108,196,217,0.85), rgba(108,196,217,0.4));
  }
  .monthly-row .month-value {
    text-align: right;
    color: var(--text);
    font-size: 12px;
  }
  .monthly-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
  }
  .monthly-tab {
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.15s;
  }
  .monthly-tab.active {
    border-color: var(--amber);
    color: var(--amber);
    background: rgba(232,183,109,0.06);
  }
  .monthly-tab:hover {
    color: var(--text);
  }

  /* Calendar heatmap */
  .cal-wrap {
    overflow-x: auto;
    padding-bottom: 8px;
  }
  .cal-grid {
    display: grid;
    grid-auto-flow: column;
    grid-template-rows: repeat(7, 12px);
    gap: 3px;
    padding: 8px 0;
  }
  .cal-cell {
    width: 12px;
    height: 12px;
    background: rgba(255,255,255,0.025);
    border-radius: 2px;
    transition: transform 0.1s, background 0.2s;
    cursor: default;
  }
  .cal-cell.l1 { background: rgba(232,183,109,0.22); }
  .cal-cell.l2 { background: rgba(232,183,109,0.45); }
  .cal-cell.l3 { background: rgba(232,183,109,0.7); }
  .cal-cell.l4 { background: rgba(255,216,151,0.92); }
  .cal-cell:hover { transform: scale(1.5); z-index: 2; outline: 1px solid rgba(255,216,151,0.6); }
  .cal-legend {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    margin-top: 12px;
  }
  .cal-legend .sw {
    width: 10px; height: 10px; border-radius: 2px;
    display: inline-block;
  }
  .cal-months {
    display: grid;
    grid-auto-flow: column;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.1em;
    margin-bottom: 2px;
    height: 14px;
  }

  /* Health metrics charts */
  .hr-zones {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 160px;
    padding: 8px 0;
  }
  .hr-zone {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
  }
  .hr-zone-bar {
    width: 100%;
    background: linear-gradient(180deg, var(--amber-bright), var(--amber) 60%, var(--amber-dim));
    border-radius: 2px 2px 0 0;
    min-height: 4px;
  }
  .hr-zone-bar.cold { background: linear-gradient(180deg, #6cc4d9, #4a8c9e 60%, #2e5867); }
  .hr-zone-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.06em;
  }
  .hr-zone-count {
    font-family: var(--serif);
    font-size: 18px;
    color: var(--text);
  }

  .weather-scatter {
    width: 100%;
    height: 220px;
  }

  /* Detail panel extra rows */
  .detail-stat.health {
    border-color: rgba(217,122,138,0.35);
  }
  .detail-stat.health .detail-stat-label {
    color: var(--rose);
  }

  /* ===== Body Adaptation Section ===== */
  .body-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-top: 24px;
  }
  @media (max-width: 900px) {
    .body-grid { grid-template-columns: 1fr; }
  }

  .vo2-chart {
    width: 100%;
    height: 240px;
  }
  .vo2-foot {
    display: flex;
    justify-content: space-between;
    margin-top: 12px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
  }
  .vo2-foot strong {
    color: var(--text);
    font-family: var(--serif);
    font-size: 20px;
    font-weight: 400;
  }
  .vo2-foot .drop {
    color: var(--rose);
  }
  .vo2-foot .rise {
    color: var(--cyan);
  }

  /* Big delta cards */
  .delta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  .delta-card {
    background: var(--surface);
    padding: 20px 18px;
  }
  .delta-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 10px;
  }
  .delta-value {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 28px;
    color: var(--text);
    line-height: 1;
  }
  .delta-value small {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    margin-left: 3px;
  }
  .delta-meta {
    margin-top: 10px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .delta-arrow {
    font-family: var(--mono);
    font-weight: 500;
  }
  .delta-arrow.down { color: var(--cyan); }
  .delta-arrow.up   { color: var(--rose); }
  .delta-arrow.flat { color: var(--text-faint); }
  .delta-bar {
    margin-top: 12px;
    height: 4px;
    background: var(--surface-2);
    position: relative;
    overflow: hidden;
  }
  .delta-bar-inner {
    position: absolute;
    height: 100%;
    background: linear-gradient(90deg, var(--amber-bright), var(--amber));
    top: 0;
  }
  .delta-bar-inner.cool {
    background: linear-gradient(90deg, var(--cyan), #4a8c9e);
  }
  .delta-bar-inner.rose {
    background: linear-gradient(90deg, var(--rose), #a85060);
  }

  /* Weight + summary side card */
  .body-side {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .weight-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 24px;
  }
  .weight-numbers {
    display: flex;
    align-items: baseline;
    gap: 14px;
    margin-bottom: 14px;
  }
  .weight-now {
    font-family: var(--serif);
    font-size: 48px;
    color: var(--text);
    line-height: 1;
  }
  .weight-now small {
    font-family: var(--mono);
    font-size: 14px;
    color: var(--text-dim);
    margin-left: 4px;
  }
  .weight-delta {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--cyan);
  }
  .weight-from {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    margin-bottom: 8px;
  }
  .weight-bar {
    height: 4px;
    background: var(--surface-2);
    position: relative;
    margin-top: 14px;
  }
  .weight-bar-cur {
    position: absolute;
    top: -3px;
    width: 10px;
    height: 10px;
    background: var(--amber);
    border-radius: 50%;
    transform: translateX(-50%);
  }

  /* Daily overlay chart (delivery period: bars + line) */
  .overlay-chart {
    width: 100%;
    height: 280px;
  }
  .overlay-legend {
    display: flex;
    gap: 18px;
    margin-top: 12px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }
  .overlay-legend .swatch {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin-right: 6px;
    vertical-align: middle;
  }
  .overlay-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    flex-wrap: wrap;
  }
  .overlay-tab {
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.15s;
  }
  .overlay-tab.active {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(108,196,217,0.06);
  }
  .overlay-tab:hover {
    color: var(--text);
  }

  /* Pace distribution */
  .speed-dist {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    align-items: end;
    height: 160px;
  }
  .speed-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    height: 100%;
    justify-content: flex-end;
  }
  .speed-col .speed-bar {
    width: 100%;
    background: linear-gradient(180deg, var(--cyan), #2e5867);
    border-radius: 2px 2px 0 0;
    min-height: 3px;
  }
  .speed-col .speed-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.06em;
  }
  .speed-col .speed-count {
    font-family: var(--serif);
    font-size: 16px;
    color: var(--text);
  }

  /* ===== 最近一次骑行 + 恢复状态 ===== */
  .latest-band {
    max-width: 1400px;
    margin: 24px auto 0;
    padding: 0 24px;
    position: relative;
    z-index: 1;
  }
  .latest-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  @media (max-width: 880px) {
    .latest-grid { grid-template-columns: 1fr; }
  }
  .latest-cell {
    background: var(--surface);
    padding: 24px 24px;
    position: relative;
    overflow: hidden;
  }
  .latest-cell .lc-tag {
    font-family: var(--mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--amber);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .latest-cell .lc-tag::before {
    content: '';
    width: 14px;
    height: 1px;
    background: var(--amber);
  }
  .latest-cell .lc-tag.cool { color: var(--cyan); }
  .latest-cell .lc-tag.cool::before { background: var(--cyan); }
  .latest-cell .lc-headline {
    font-family: var(--serif);
    font-size: 26px;
    font-weight: 400;
    line-height: 1.1;
    color: var(--text);
    margin-bottom: 4px;
  }
  .latest-cell .lc-headline em {
    font-style: italic;
    color: var(--amber);
    font-weight: 400;
  }
  .latest-cell .lc-when {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    margin-bottom: 16px;
    letter-spacing: 0.05em;
  }
  .latest-cell .lc-stats {
    display: flex;
    gap: 22px;
    flex-wrap: wrap;
  }
  .latest-cell .lc-stat {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    line-height: 1.4;
  }
  .latest-cell .lc-stat strong {
    display: block;
    font-family: var(--serif);
    font-weight: 400;
    color: var(--text);
    font-size: 22px;
    margin-bottom: 2px;
  }
  .latest-cell .lc-stat strong small {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-dim);
    margin-left: 2px;
  }
  .recovery-rows {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .recovery-row {
    display: grid;
    grid-template-columns: 70px 1fr auto;
    align-items: center;
    gap: 12px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }
  .recovery-label {
    color: var(--text-faint);
    letter-spacing: 0.04em;
  }
  .recovery-bar {
    position: relative;
    height: 6px;
    background: rgba(255,255,255,0.04);
    border-radius: 3px;
    overflow: hidden;
  }
  .recovery-bar-fill {
    position: absolute;
    inset: 0;
    transform-origin: left;
    background: linear-gradient(90deg, var(--cyan), #4a8c9e);
    transform: scaleX(var(--bar, 0.5));
    transition: transform 0.6s cubic-bezier(.2,.7,.2,1);
  }
  .recovery-bar-fill.warn {
    background: linear-gradient(90deg, var(--rose), #a85060);
  }
  .recovery-bar-fill.good {
    background: linear-gradient(90deg, var(--amber-bright), var(--amber));
  }
  .recovery-bar-base {
    position: absolute;
    width: 1px;
    top: -3px; bottom: -3px;
    background: var(--text-faint);
    opacity: 0.7;
  }
  .recovery-val {
    color: var(--text);
    font-variant-numeric: tabular-nums;
    min-width: 56px;
    text-align: right;
  }
  .recovery-val small {
    color: var(--text-faint);
    font-size: 10px;
    margin-left: 2px;
  }
  .recovery-readout {
    margin-top: 14px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    padding-top: 12px;
    border-top: 1px solid var(--border);
    line-height: 1.55;
  }
  .recovery-readout strong { color: var(--text-dim); font-weight: 400; }
  .recovery-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 2px 9px;
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text);
    margin-left: 8px;
  }
  .recovery-status.good { color: var(--cyan); border: 1px solid rgba(108,196,217,0.4); background: rgba(108,196,217,0.06); }
  .recovery-status.warn { color: var(--rose); border: 1px solid rgba(217,122,138,0.4); background: rgba(217,122,138,0.06); }
  .recovery-status.flat { color: var(--text-dim); border: 1px solid var(--border); }
  .latest-elev {
    margin-top: 16px;
  }
  .latest-elev svg { width: 100%; height: 60px; display: block; }

  /* ===== 海拔曲线 (route detail panel) ===== */
  .detail-elev {
    margin-bottom: 24px;
    padding: 18px 18px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
  }
  .detail-elev-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 8px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }
  .detail-elev-head .endpoints {
    color: var(--text-dim);
    letter-spacing: 0.02em;
    text-transform: none;
    font-size: 11px;
  }
  .detail-elev-head .endpoints b {
    color: var(--amber);
    font-weight: 500;
    margin: 0 4px;
  }
  .detail-elev svg { width: 100%; height: 70px; display: block; }
  .detail-elev.empty { display: none; }

  /* ===== 训练效率 (Training Efficiency) ===== */
  .effi-chart {
    width: 100%;
    height: 280px;
    display: block;
  }
  .effi-legend {
    display: flex;
    gap: 22px;
    flex-wrap: wrap;
    margin-top: 16px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }
  .effi-legend .swatch {
    display: inline-block;
    width: 14px;
    height: 2px;
    margin-right: 6px;
    vertical-align: middle;
  }
  .effi-legend .swatch.dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
  }
  .effi-foot {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    line-height: 1.6;
  }
  .effi-foot strong {
    color: var(--text);
    font-family: var(--serif);
    font-size: 16px;
    font-weight: 400;
  }
  .effi-foot .effi-tag {
    color: var(--amber);
    font-weight: 500;
  }

  /* ===== Trade-off panel (Body Adaptation lead-in) ===== */
  .trade-panel {
    display: grid;
    grid-template-columns: 1.3fr repeat(3, 1fr);
    gap: 18px;
    align-items: stretch;
    margin-top: 18px;
    margin-bottom: 26px;
    padding: 22px 24px;
    background: linear-gradient(135deg,
      rgba(232,183,109,0.05) 0%,
      rgba(108,196,217,0.04) 100%);
    border: 1px solid var(--border);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
  }
  .trade-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 2px; height: 100%;
    background: linear-gradient(180deg, var(--amber) 0%, var(--cyan) 50%, var(--rose) 100%);
  }
  @media (max-width: 900px) {
    .trade-panel { grid-template-columns: 1fr 1fr; padding: 18px; }
  }
  .trade-story {
    grid-column: 1;
  }
  .trade-eyebrow {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: 10px;
  }
  .trade-headline {
    font-family: var(--serif);
    font-size: 22px;
    line-height: 1.35;
    color: var(--text);
    font-weight: 400;
    letter-spacing: -0.005em;
  }
  .trade-headline em {
    font-style: italic;
    color: var(--amber-bright);
    font-weight: 500;
  }
  .trade-body {
    margin-top: 12px;
    color: var(--text-dim);
    font-size: 13px;
    line-height: 1.7;
  }
  .trade-tile {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 8px 4px;
    border-left: 1px solid var(--border);
    padding-left: 18px;
  }
  @media (max-width: 900px) {
    .trade-tile { border-left: none; border-top: 1px solid var(--border); padding: 14px 0 0; }
  }
  .trade-tile .t-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-faint);
  }
  .trade-tile .t-value {
    font-family: var(--serif);
    font-size: 32px;
    line-height: 1;
    margin-top: 8px;
    font-feature-settings: "tnum";
    color: var(--text);
  }
  .trade-tile .t-value small {
    font-size: 14px;
    color: var(--text-dim);
    margin-left: 4px;
  }
  .trade-tile .t-foot {
    margin-top: 10px;
    font-size: 11px;
    font-family: var(--mono);
    color: var(--text-faint);
    line-height: 1.5;
  }
  .trade-tile.up    .t-value { color: var(--amber-bright); }
  .trade-tile.down  .t-value { color: var(--rose); }
  .trade-tile.flat  .t-value { color: var(--cyan); }
  .trade-tile .t-sign {
    font-family: var(--mono);
    font-size: 13px;
    margin-right: 4px;
    opacity: 0.85;
  }

  /* ===== Climb vs Pace scatter ===== */
  .climb-chart {
    width: 100%;
    height: 360px;
    display: block;
  }
  .climb-chart .axis,
  .climb-chart .axis-y { stroke: var(--border); }
  .climb-chart .grid-line {
    stroke: var(--border);
    stroke-dasharray: 2 4;
    opacity: 0.6;
  }
  .climb-chart .tick {
    fill: var(--text-faint);
    font-family: var(--mono);
    font-size: 10px;
  }
  .climb-chart .axis-label {
    fill: var(--text-dim);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }
  .climb-chart .ride-dot {
    transition: r 0.2s, opacity 0.2s;
    cursor: pointer;
  }
  .climb-chart .ride-dot:hover { opacity: 1 !important; stroke-width: 2; }
  .climb-chart .trend-line {
    stroke: var(--text-dim);
    stroke-dasharray: 4 5;
    stroke-width: 1.2;
    opacity: 0.55;
  }

  /* ===== Cumulative Journey ===== */
  .journey-chart {
    width: 100%;
    height: 320px;
    display: block;
  }
  .journey-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-top: 20px;
  }
  @media (max-width: 900px) {
    .journey-grid { grid-template-columns: 1fr; }
  }
  .journey-side {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .milestone {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: baseline;
    padding: 14px 16px;
    background: var(--surface-2);
    border-left: 2px solid var(--amber-dim);
    gap: 12px;
  }
  .milestone.achieved { border-left-color: var(--amber); }
  .milestone .ms-km {
    font-family: var(--serif);
    font-size: 20px;
    font-weight: 300;
    color: var(--text);
    letter-spacing: -0.01em;
  }
  .milestone .ms-km small {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    margin-left: 3px;
  }
  .milestone .ms-when {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    text-align: left;
  }
  .milestone .ms-when strong {
    color: var(--amber);
    font-weight: 500;
  }
  .milestone .ms-days {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    white-space: nowrap;
  }
  .journey-context {
    margin-top: 14px;
    padding: 16px 18px;
    background: linear-gradient(180deg, rgba(232,183,109,0.04) 0%, transparent 100%);
    border: 1px solid var(--border);
    border-radius: 0;
  }
  .journey-context-title {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: 10px;
  }
  .journey-context-body {
    font-family: var(--chinese);
    font-size: 13px;
    color: var(--text-dim);
    line-height: 1.7;
  }
  .journey-context-body strong {
    color: var(--text);
    font-family: var(--serif);
    font-weight: 400;
    font-size: 15px;
  }

  /* ===== Top Days Leaderboard ===== */
  .top-days-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    margin-top: 16px;
  }
  .top-day {
    display: grid;
    grid-template-columns: 36px 1fr 80px 80px 60px;
    align-items: center;
    background: var(--surface);
    padding: 14px 18px;
    cursor: pointer;
    transition: background 0.15s ease;
    gap: 14px;
    position: relative;
    overflow: hidden;
  }
  .top-day:hover { background: var(--surface-2); }
  .top-day .td-bar {
    position: absolute;
    left: 0; top: 0; bottom: 0;
    background: linear-gradient(90deg, rgba(232,183,109,0.10), rgba(232,183,109,0));
    pointer-events: none;
  }
  .top-day > * { position: relative; z-index: 1; }
  .top-day .td-rank {
    font-family: var(--serif);
    font-size: 20px;
    font-weight: 300;
    color: var(--amber);
    font-style: italic;
    letter-spacing: -0.02em;
  }
  .top-day.r1 .td-rank, .top-day.r2 .td-rank, .top-day.r3 .td-rank { color: var(--amber-bright); }
  .top-day .td-date {
    font-family: var(--chinese);
    font-size: 14px;
    color: var(--text);
  }
  .top-day .td-date small {
    display: block;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.05em;
    margin-top: 2px;
  }
  .top-day .td-metric {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--text-dim);
    text-align: right;
  }
  .top-day .td-metric strong {
    color: var(--text);
    font-family: var(--serif);
    font-weight: 400;
    font-size: 16px;
  }
  .top-day .td-metric small {
    display: block;
    font-size: 9px;
    color: var(--text-faint);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: 2px;
  }
  @media (max-width: 700px) {
    .top-day { grid-template-columns: 28px 1fr 60px 60px; gap: 8px; padding: 12px 14px; }
    .top-day .td-metric:last-child { display: none; }
  }

  /* ===== Distance histogram + Power ===== */
  .dist-hist {
    width: 100%;
    height: 200px;
    display: block;
  }
  .power-chart {
    width: 100%;
    height: 200px;
    display: block;
  }
  .pwr-foot {
    margin-top: 14px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
  }
  .pwr-foot strong {
    color: var(--amber);
    font-weight: 500;
  }

  /* ===== City Atlas ===== */
  .city-atlas {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    margin-top: 16px;
  }
  .city-row {
    display: grid;
    grid-template-columns: 1.4fr 1.4fr 1fr 0.6fr;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    background: var(--surface);
    position: relative;
    overflow: hidden;
    transition: background 0.15s ease;
  }
  .city-row:hover { background: var(--surface-2); }
  .city-row .cr-bar {
    position: absolute;
    left: 0; top: 0; bottom: 0;
    background: linear-gradient(90deg, rgba(232,183,109,0.10) 0%, rgba(232,183,109,0.01) 100%);
    transition: width 0.8s cubic-bezier(.2,.7,.2,1);
    pointer-events: none;
  }
  .city-row > *:not(.cr-bar) { position: relative; z-index: 1; }
  .city-row .cr-name {
    font-family: var(--serif);
    font-size: 18px;
    color: var(--text);
    font-weight: 400;
    letter-spacing: -0.01em;
  }
  .city-row .cr-name small {
    display: block;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.08em;
    margin-top: 3px;
    text-transform: uppercase;
  }
  .city-row .cr-meta {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 0.04em;
  }
  .city-row .cr-meta small {
    display: block;
    font-size: 10px;
    color: var(--text-faint);
    margin-top: 4px;
    letter-spacing: 0.03em;
  }
  .city-row .cr-km {
    font-family: var(--serif);
    font-size: 22px;
    color: var(--amber);
    text-align: right;
    font-weight: 300;
    letter-spacing: -0.01em;
  }
  .city-row .cr-km small {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    margin-left: 4px;
    font-weight: 400;
  }
  .city-row .cr-share {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    text-align: right;
    letter-spacing: 0.05em;
  }
  @media (max-width: 700px) {
    .city-row { grid-template-columns: 1fr 0.8fr 0.7fr; padding: 14px; }
    .city-row .cr-share { display: none; }
  }

  /* ===== Effort Quadrant ===== */
  .effort-chart {
    width: 100%;
    height: 420px;
    display: block;
  }
  .effort-chart circle { transition: opacity 0.15s ease; }
  .effort-chart:hover circle { opacity: 0.45; }
  .effort-chart:hover circle:hover { opacity: 1; }
  .effort-legend {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  @media (max-width: 700px) { .effort-legend { grid-template-columns: 1fr; } }
  .eq-tag {
    font-family: var(--chinese);
    font-size: 12.5px;
    color: var(--text-dim);
    padding: 12px 16px;
    border-left: 2px solid var(--border);
    background: var(--surface-2);
    line-height: 1.5;
  }
  .eq-tag.eff { border-left-color: var(--cyan); }
  .eq-tag.hard { border-left-color: var(--amber); }
  .eq-tag.easy { border-left-color: var(--text-faint); }
  .eq-tag.costly { border-left-color: var(--rose); }
  .eq-tag strong {
    font-family: var(--serif);
    font-style: italic;
    font-weight: 400;
    font-size: 16px;
    color: var(--text);
    margin-right: 10px;
    letter-spacing: -0.01em;
  }
  .eq-tag .eq-count {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--amber);
    margin-left: 6px;
  }

  /* ===== Floating Side Navigator ===== */
  .side-nav {
    position: fixed;
    top: 50%;
    right: 16px;
    transform: translateY(-50%);
    z-index: 30;
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: 78vh;
    overflow-y: auto;
    padding: 10px 6px;
    background: rgba(10, 10, 12, 0.78);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  .side-nav::-webkit-scrollbar { width: 0; }
  .side-nav-item {
    padding: 6px 12px;
    font-family: var(--mono);
    font-size: 9.5px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-faint);
    cursor: pointer;
    border-left: 2px solid transparent;
    transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
    white-space: nowrap;
    user-select: none;
  }
  .side-nav-item:hover { color: var(--text); background: var(--surface); }
  .side-nav-item.active {
    color: var(--amber);
    border-left-color: var(--amber);
    background: var(--surface);
  }
  @media (max-width: 1200px) { .side-nav { display: none; } }

  /* ===== Effort Quadrant axis text helpers (overrides for SVG-injected text) ===== */
  .eq-axis-title {
    font-family: var(--mono);
    font-size: 11px;
    fill: var(--text-dim);
    letter-spacing: 0.08em;
  }

  /* ===== Fitness & Form (CTL / ATL / TSB) ===== */
  .ff-kpis {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    margin-bottom: 18px;
  }
  .ff-kpi {
    background: var(--surface);
    padding: 18px 20px;
    position: relative;
  }
  .ff-kpi-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .ff-kpi-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
  }
  .ff-kpi-dot.ctl { background: var(--amber); box-shadow: 0 0 6px rgba(232,183,109,0.4); }
  .ff-kpi-dot.atl { background: var(--cyan); box-shadow: 0 0 6px rgba(108,196,217,0.4); }
  .ff-kpi-dot.tsb { background: #88b66a; box-shadow: 0 0 6px rgba(136,182,106,0.4); }
  .ff-kpi-dot.tsb.neg { background: var(--rose); box-shadow: 0 0 6px rgba(217,122,138,0.4); }
  .ff-kpi-value {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 30px;
    line-height: 1;
    color: var(--text);
  }
  .ff-kpi-value small {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    margin-left: 4px;
  }
  .ff-kpi-foot {
    margin-top: 8px;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.06em;
    color: var(--text-faint);
  }
  .ff-kpi-foot strong {
    font-weight: 500;
    color: var(--text-dim);
  }
  .ff-state-pill {
    display: inline-block;
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    padding: 3px 8px;
    border: 1px solid currentColor;
    color: var(--amber);
    margin-top: 8px;
  }
  .ff-state-pill.fresh   { color: #88b66a; }
  .ff-state-pill.optimal { color: var(--amber); }
  .ff-state-pill.heavy   { color: var(--rose); }
  .ff-state-pill.detrain { color: var(--text-dim); }

  .ff-legend {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    align-items: center;
  }
  .ff-legend .swatch {
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-right: 6px;
    vertical-align: -1px;
  }

  /* Rides-table elevation sparkline cell */
  .rides-table td.col-elev {
    min-width: 88px;
    padding-right: 6px;
  }
  .rides-table td.col-elev svg {
    display: block;
    width: 80px;
    height: 22px;
  }
  .elev-spark-fill { fill: rgba(232, 183, 109, 0.18); }
  .elev-spark-line { stroke: var(--amber); stroke-width: 1; fill: none; }
  .elev-spark-none {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
  }

  /* ===== 2026-05-25 三次迭代 ===== */

  /* 心率范围 / HR Range bars */
  .hr-range-chart {
    width: 100%;
    height: auto;
    display: block;
  }
  .hr-range-foot {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    align-items: center;
  }
  .hr-range-foot .swatch {
    display: inline-block;
    width: 22px;
    height: 4px;
    margin-right: 6px;
    vertical-align: 2px;
    background: linear-gradient(90deg, rgba(108,196,217,0.35), rgba(232,183,109,0.85));
    border-radius: 2px;
  }
  .hr-range-foot .dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--amber-bright);
    margin-right: 6px;
    vertical-align: 0;
  }

  /* 能量构成 / Energy Composition */
  .energy-chart {
    width: 100%;
    height: auto;
    display: block;
  }
  .energy-legend {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    align-items: center;
  }
  .energy-legend .swatch {
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-right: 6px;
    vertical-align: -1px;
  }
  .energy-stats {
    margin-top: 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  .energy-stat {
    background: var(--surface-2);
    padding: 18px 20px;
  }
  .energy-stat-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 8px;
  }
  .energy-stat-value {
    font-family: var(--serif);
    font-weight: 300;
    font-size: 28px;
    color: var(--text);
    line-height: 1;
  }
  .energy-stat-value small {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    margin-left: 4px;
  }
  .energy-stat-sub {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-dim);
    margin-top: 6px;
  }

  /* 气候散点 / Climate Scatter */
  .climate-chart {
    width: 100%;
    height: auto;
    display: block;
  }
  .climate-legend {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    align-items: center;
  }
  .climate-legend .grad {
    display: inline-block;
    width: 80px;
    height: 8px;
    background: linear-gradient(90deg, #6cc4d9, #ffd897, #d97a8a);
    margin: 0 8px;
    vertical-align: middle;
    border-radius: 2px;
  }

  /* 日常活动 / Daily Steps + Flights */
  .daily-life-chart {
    width: 100%;
    height: auto;
    display: block;
  }
  .daily-life-legend {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    align-items: center;
  }
  .daily-life-legend .swatch {
    display: inline-block;
    width: 12px;
    height: 4px;
    margin-right: 6px;
    vertical-align: 2px;
    border-radius: 2px;
  }
  .daily-life-stats {
    margin-top: 22px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  .dl-stat {
    background: var(--surface-2);
    padding: 16px 18px;
  }
  .dl-stat-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 6px;
  }
  .dl-stat-row {
    display: flex;
    align-items: baseline;
    gap: 10px;
  }
  .dl-stat-base {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-dim);
  }
  .dl-stat-arrow {
    color: var(--text-faint);
    font-family: var(--mono);
    font-size: 11px;
  }
  .dl-stat-now {
    font-family: var(--serif);
    font-weight: 300;
    font-size: 22px;
    color: var(--text);
  }
  .dl-stat-delta {
    display: inline-block;
    margin-top: 6px;
    font-family: var(--mono);
    font-size: 11px;
    padding: 2px 8px;
    border: 1px solid var(--border-bright);
    border-radius: 999px;
  }
  .dl-stat-delta.up { color: var(--amber); border-color: rgba(232,183,109,0.4); }
  .dl-stat-delta.down { color: var(--cyan); border-color: rgba(108,196,217,0.4); }

  /* ===== Recovery page (sleep / HRV / RHR / resp) ===== */
  .recovery-stats {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  .recovery-stat {
    background: var(--surface-2);
    padding: 14px 16px;
  }
  .rs-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 6px;
  }
  .rs-value {
    font-family: var(--serif);
    font-weight: 300;
    font-size: 22px;
    color: var(--text);
    line-height: 1.1;
  }
  .rs-value small {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 400;
    color: var(--text-dim);
    margin-left: 4px;
  }
  .recovery-chart {
    width: 100%;
    height: auto;
    display: block;
  }
  .recovery-brush-summary {
    margin-top: 12px;
    padding: 10px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 0.04em;
  }
  .recovery-brush-summary strong { color: var(--text); font-weight: 500; }
  .recovery-brush-summary .hrv-brush-label {
    display: inline-block;
    margin-right: 8px;
    padding: 1px 7px;
    border: 1px solid var(--amber-dim);
    color: var(--amber);
    border-radius: 999px;
    font-size: 9px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
  }
  .recovery-readout {
    margin-top: 12px;
    padding: 10px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }
  .recovery-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 22px;
    margin-top: 12px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }
  .recovery-legend .swatch {
    display: inline-block;
    width: 14px;
    height: 8px;
    margin-right: 6px;
    vertical-align: 1px;
    border-radius: 2px;
  }
  .recovery-grid-2 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    align-items: start;
  }
  @media (max-width: 800px) {
    .recovery-grid-2 { grid-template-columns: 1fr; }
  }
  .recovery-dist-card {
    background: var(--surface-2);
    border: 1px solid var(--border);
    padding: 14px 16px;
  }
  .recovery-dist-title {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 10px;
  }

  /* 爬升画像 / Elevation Profile Gallery */
  .elev-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  .elev-card {
    background: var(--surface-2);
    padding: 16px 18px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .elev-card-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }
  .elev-card-date {
    color: var(--text);
    letter-spacing: 0.04em;
  }
  .elev-card-gain {
    color: var(--amber-bright);
    font-family: var(--serif);
    font-size: 20px;
    font-weight: 300;
    line-height: 1;
  }
  .elev-card-gain small {
    color: var(--text-faint);
    font-family: var(--mono);
    font-size: 10px;
    margin-left: 3px;
  }
  .elev-card svg {
    width: 100%;
    height: 70px;
    display: block;
  }
  .elev-card-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
  }
  .elev-card-meta b {
    color: var(--text-dim);
    font-weight: 500;
    margin-right: 4px;
  }
  .elev-summary {
    margin-top: 18px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    display: flex;
    gap: 22px;
    flex-wrap: wrap;
  }
  .elev-summary b {
    color: var(--amber);
    font-weight: 500;
  }

  /* 代谢强度 / METS Intensity */
  .mets-chart {
    width: 100%;
    height: auto;
    display: block;
  }
  .mets-bands {
    margin-top: 22px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  .mets-band {
    background: var(--surface-2);
    padding: 14px 16px;
  }
  .mets-band-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 6px;
  }
  .mets-band-range {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    margin-bottom: 8px;
  }
  .mets-band-count {
    font-family: var(--serif);
    font-weight: 300;
    font-size: 22px;
    color: var(--text);
    line-height: 1;
  }
  .mets-band-count small {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-dim);
    margin-left: 4px;
  }
  .mets-band-bar {
    margin-top: 8px;
    height: 4px;
    border-radius: 2px;
    background: rgba(255,255,255,0.04);
    overflow: hidden;
  }
  .mets-band-bar > span {
    display: block;
    height: 100%;
    border-radius: 2px;
  }
  .mets-legend {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    align-items: center;
  }

  /* 出发热力图 / Departure Heatmap */
  .heatmap-wrap {
    overflow-x: auto;
  }
  .heatmap {
    display: grid;
    grid-template-columns: 36px repeat(24, minmax(22px, 1fr));
    gap: 2px;
    font-family: var(--mono);
    font-size: 9px;
    color: var(--text-faint);
    min-width: 640px;
  }
  .heatmap .hm-corner,
  .heatmap .hm-hour,
  .heatmap .hm-wd {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 22px;
    color: var(--text-faint);
  }
  .heatmap .hm-hour {
    letter-spacing: 0.04em;
  }
  .heatmap .hm-wd {
    justify-content: flex-end;
    padding-right: 8px;
    color: var(--text-dim);
    font-size: 10px;
  }
  .heatmap .hm-cell {
    position: relative;
    min-height: 22px;
    border-radius: 2px;
    background: rgba(255,255,255,0.025);
    border: 1px solid rgba(255,255,255,0.03);
  }
  .heatmap .hm-cell.has {
    border-color: rgba(232,183,109,0.18);
  }
  .heatmap .hm-cell .hm-dot {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0a0c;
    font-weight: 600;
    font-size: 9px;
  }
  .heatmap-legend {
    margin-top: 14px;
    display: flex;
    align-items: center;
    gap: 14px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
  }
  .heatmap-legend .grad {
    display: inline-block;
    width: 120px;
    height: 8px;
    background: linear-gradient(90deg, rgba(232,183,109,0.10), rgba(232,183,109,0.45), #ffd897);
    border-radius: 2px;
  }
  .heatmap-stats {
    margin-top: 16px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  .hm-stat {
    background: var(--surface-2);
    padding: 14px 16px;
  }
  .hm-stat-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 6px;
  }
  .hm-stat-value {
    font-family: var(--serif);
    font-weight: 300;
    font-size: 22px;
    color: var(--text);
    line-height: 1;
  }
  .hm-stat-sub {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-dim);
    margin-top: 6px;
  }


/* ===== Top Nav (multi-page) — 2026-05-25 五次迭代 ===== */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 90;
  display: flex;
  gap: 6px;
  padding: 12px 36px;
  background: rgba(15, 14, 12, 0.78);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid rgba(232, 183, 109, 0.16);
  overflow-x: auto;
  scrollbar-width: none;
}
.top-nav::-webkit-scrollbar { display: none; }
.top-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 18px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text-dim);
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}
.top-nav-link:hover {
  color: var(--text);
  background: rgba(232, 183, 109, 0.08);
  border-color: rgba(232, 183, 109, 0.18);
}
.top-nav-link--active {
  color: var(--accent);
  background: rgba(232, 183, 109, 0.12);
  border-color: rgba(232, 183, 109, 0.34);
}
.top-nav-cn {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
}
.top-nav-en {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  line-height: 1;
}
.top-nav-link--active .top-nav-en { color: var(--accent); opacity: 0.9; }

/* Slimmer hero spacing on subpages so the nav doesn't shove content down */
body[data-page]:not([data-page="all"]) .hero {
  padding-top: 40px;
  padding-bottom: 56px;
}
body[data-page]:not([data-page="all"]) .hero h1 {
  font-size: clamp(38px, 6vw, 70px);
}

/* Range filter widget (Phase 3 placeholder; styles arrive with the widget) */
.range-filter {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 24px auto 32px;
  padding: 14px 20px;
  background: rgba(232, 183, 109, 0.04);
  border: 1px solid rgba(232, 183, 109, 0.18);
  border-radius: 14px;
  max-width: 1100px;
  flex-wrap: wrap;
}
.range-filter-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.range-filter-presets {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.range-preset {
  font-family: var(--mono);
  font-size: 11px;
  padding: 5px 11px;
  background: transparent;
  border: 1px solid rgba(232, 183, 109, 0.24);
  border-radius: 999px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s ease;
}
/* --accent / --bg-deep were never defined, so the active preset rendered with
   an invalid colour and a transparent background — i.e. it looked exactly
   like the inactive ones. These are the real tokens. */
.range-preset:hover { color: var(--text); border-color: var(--amber); }
.range-preset--active {
  color: var(--bg);
  background: var(--amber);
  border-color: var(--amber);
}
.range-filter-inputs {
  display: flex;
  align-items: center;
  gap: 8px;
}
.range-filter-inputs input[type="date"] {
  font-family: var(--mono);
  font-size: 12px;
  background: rgba(15, 14, 12, 0.6);
  border: 1px solid rgba(232, 183, 109, 0.24);
  color: var(--text);
  padding: 5px 10px;
  border-radius: 8px;
  color-scheme: dark;
}
.range-filter-sep { color: var(--text-dim); font-family: var(--mono); }
.range-filter-summary {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-left: auto;
}

/* ===== 城市筛选 / City filter ===== */
.city-filter { margin-bottom: 12px; flex-wrap: wrap; }
.city-filter:empty { display: none; }
.city-filter-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.city-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  font-family: var(--chinese);
  font-size: 12.5px;
  padding: 5px 13px;
  background: transparent;
  border: 1px solid rgba(232, 183, 109, 0.24);
  border-radius: 999px;
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}
.city-chip:hover { color: var(--text); border-color: var(--amber); }
.city-chip--active {
  color: var(--bg);
  background: var(--amber);
  border-color: var(--amber);
}
.city-chip-n {
  font-family: var(--mono);
  font-size: 10px;
  opacity: 0.7;
}
.city-filter-summary {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-left: auto;
  text-align: right;
  max-width: 620px;
  line-height: 1.6;
}
.city-filter-summary strong { color: var(--amber); font-weight: 500; }
.city-filter-caveat {
  display: block;
  color: var(--text-faint);
  font-size: 10px;
  margin-top: 3px;
}

@media (max-width: 900px) {
  .city-filter-summary { margin-left: 0; text-align: left; max-width: none; }
}
.range-filter-summary strong { color: var(--accent); font-weight: 500; }

/* Empty-state placeholder shown when the active range yields no data */
.empty-range {
  padding: 32px;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  border: 1px dashed rgba(232, 183, 109, 0.18);
  border-radius: 10px;
  background: rgba(232, 183, 109, 0.025);
}

/* ============ Ride Explorer (逐次探索) ============ */
.explorer-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
  justify-content: space-between;
  padding: 16px 20px 14px;
  border-bottom: 1px solid rgba(232, 183, 109, 0.08);
}
.explorer-picker-wrap { display: flex; flex-direction: column; gap: 6px; min-width: 280px; flex: 1; }
.explorer-picker-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.explorer-picker {
  font-family: var(--mono);
  font-size: 13px;
  background: rgba(15, 14, 12, 0.6);
  border: 1px solid rgba(232, 183, 109, 0.24);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 10px;
  color-scheme: dark;
  width: 100%;
  cursor: pointer;
  transition: border-color 0.15s;
}
.explorer-picker:hover, .explorer-picker:focus {
  border-color: var(--accent);
  outline: none;
}
.explorer-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}
.explorer-nav-btn {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid rgba(232, 183, 109, 0.28);
  color: var(--text-dim);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  transition: all 0.15s;
}
.explorer-nav-btn:hover:not(:disabled) {
  background: var(--accent);
  color: var(--bg-deep);
  border-color: var(--accent);
}
.explorer-nav-btn:disabled { opacity: 0.32; cursor: not-allowed; }
.explorer-counter {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  min-width: 56px;
  text-align: center;
}
.explorer-body { padding: 18px 20px 22px; }
.explorer-headline {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(232, 183, 109, 0.06);
  margin-bottom: 16px;
}
.explorer-date {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.explorer-when {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 4px;
}
.explorer-headline-num {
  font-family: var(--mono);
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.explorer-big {
  font-size: 38px;
  color: var(--text);
  font-weight: 300;
  letter-spacing: -0.01em;
}
.explorer-big-unit {
  font-size: 14px;
  color: var(--text-dim);
}
.explorer-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 1px;
  background: rgba(232, 183, 109, 0.08);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
}
.explorer-stat {
  background: rgba(15, 14, 12, 0.72);
  padding: 12px 14px;
}
.es-label {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 5px;
}
.es-value {
  font-family: var(--mono);
  font-size: 17px;
  color: var(--text);
  font-weight: 400;
}
.es-value small {
  font-size: 10px;
  color: var(--text-dim);
  margin-left: 3px;
  font-weight: 300;
}
.explorer-twocol {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
}
@media (max-width: 880px) {
  .explorer-twocol { grid-template-columns: 1fr; }
}
.explorer-elev-wrap, .explorer-map-wrap {
  background: rgba(15, 14, 12, 0.5);
  border: 1px solid rgba(232, 183, 109, 0.06);
  border-radius: 12px;
  padding: 14px;
}
.explorer-sub-title {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}
.explorer-sub-foot {
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-faint);
}
.explorer-sub-foot b { color: var(--accent); font-weight: 500; }
.explorer-elev {
  width: 100%;
  height: 220px;
  display: block;
}
.explorer-map {
  width: 100%;
  height: 280px;
  border-radius: 10px;
  background: rgba(10, 10, 12, 0.85);
  overflow: hidden;
}
.explorer-map-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
}

/* ============ Ascent vs Descent (爬升 vs 下降) ============ */
.ad-svg {
  width: 100%;
  height: auto;
  max-height: 360px;
  display: block;
}
.ad-group { transition: opacity 0.15s; }
.ad-group:hover { opacity: 0.78; }
.ad-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding: 10px 16px 4px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
}
.ad-swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-right: 6px;
  vertical-align: -1px;
  border-radius: 2px;
}
.ad-swatch.ad-dot { border-radius: 999px; }

  /* ===== 配送分析 / Delivery page ===== */
  .dlv-kpis {
    display: grid;
    /* Eight cards, so the column count has to divide eight or the last row
       leaves gaps that read as a broken block — the 1px gutters are painted
       by the grid background, and an empty cell shows that background raw. */
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  @media (max-width: 980px) { .dlv-kpis { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 520px) { .dlv-kpis { grid-template-columns: 1fr; } }
  .dlv-kpi {
    background: var(--surface);
    padding: 20px 22px;
  }
  .dlv-kpi-label {
    font-family: var(--mono);
    font-size: 10.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-faint);
  }
  .dlv-kpi-value {
    font-family: var(--serif);
    font-size: 30px;
    line-height: 1.25;
    color: var(--amber);
    margin-top: 8px;
    word-break: break-word;
  }
  .dlv-kpi-unit {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-faint);
    margin-left: 5px;
  }
  .dlv-kpi-foot {
    font-size: 11.5px;
    color: var(--text-dim);
    margin-top: 6px;
    line-height: 1.5;
  }
  .dlv-note {
    margin-top: 18px;
    padding: 14px 18px;
    background: var(--surface-2);
    border-left: 2px solid var(--amber-dim);
    font-size: 12.5px;
    line-height: 1.75;
    color: var(--text-dim);
  }
  .dlv-note strong { color: var(--amber); font-weight: 500; }

  /* map controls: layer chips, hour scrubber, focus bar */
  .dlv-map-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px 22px;
    padding-bottom: 14px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border);
  }
  .dlv-layer-chips { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
  .dlv-chip {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-faint);
    font-family: var(--chinese);
    font-size: 12.5px;
    padding: 6px 14px;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
  }
  .dlv-chip:hover { color: var(--text); border-color: var(--border-bright); }
  .dlv-chip.active { color: var(--text); border-color: var(--amber-dim); background: var(--surface-2); }
  .dlv-dot {
    width: 9px; height: 9px; border-radius: 50%;
    background: var(--text-faint);
    opacity: 0.45;
    transition: opacity 0.15s;
  }
  .dlv-chip.active .dlv-dot { opacity: 1; }
  .dlv-dot.dot-hot { background: var(--amber-bright); }
  .dlv-dot.dot-pickup { background: var(--cyan, #6cc4d9); }
  .dlv-dot.dot-drop { background: var(--amber-bright); }
  .dlv-dot.dot-light { background: var(--rose); }
  .dlv-dot.dot-zone { background: var(--amber-dim); }
  .dlv-dot.dot-common { background: var(--amber); }
  .dlv-dot.dot-hard { background: var(--rose); }
  .dlv-reset {
    background: none;
    border: none;
    color: var(--text-faint);
    font-family: var(--mono);
    font-size: 11px;
    cursor: pointer;
    padding: 6px 4px;
    margin-left: 4px;
    border-bottom: 1px solid transparent;
  }
  .dlv-reset:hover { color: var(--amber); border-bottom-color: var(--amber-dim); }

  .dlv-time { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
  .dlv-play {
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border-bright);
    background: var(--surface);
    color: var(--text-dim);
    font-size: 10px;
    line-height: 1;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
  }
  .dlv-play:hover, .dlv-play.playing { color: var(--amber); border-color: var(--amber-dim); }
  #dlvHour {
    width: 190px;
    accent-color: #e8b76d;
    background: transparent;
    cursor: pointer;
  }
  .dlv-time-label {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--amber);
    min-width: 44px;
  }
  .dlv-time-note { font-size: 11px; color: var(--text-faint); }

  .dlv-focus-bar[hidden] { display: none; }
  .dlv-focus-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
    padding: 14px 18px;
    margin-bottom: 16px;
    background: var(--surface-2);
    border-left: 2px solid var(--amber);
  }
  .dlv-focus-name { font-family: var(--serif); font-size: 19px; color: var(--amber); }
  .dlv-focus-lga {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    margin-left: 10px;
  }
  .dlv-focus-stats { display: flex; flex-wrap: wrap; gap: 6px 20px; flex: 1; }
  .dlv-focus-stats span { font-family: var(--mono); font-size: 12px; color: var(--text); }
  .dlv-focus-stats em {
    display: block;
    font-style: normal;
    font-size: 9.5px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 2px;
  }
  .dlv-focus-exit {
    background: none;
    border: 1px solid var(--border-bright);
    border-radius: 999px;
    color: var(--text-dim);
    font-family: var(--mono);
    font-size: 11px;
    padding: 5px 12px;
    cursor: pointer;
  }
  .dlv-focus-exit:hover { color: var(--amber); border-color: var(--amber-dim); }

  .dlv-panel-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: var(--surface);
    z-index: 2;
  }
  .dlv-ptab {
    flex: 1;
    background: none;
    border: none;
    border-bottom: 1px solid transparent;
    color: var(--text-faint);
    font-family: var(--chinese);
    font-size: 12.5px;
    padding: 10px 4px;
    cursor: pointer;
    transition: color 0.15s;
  }
  .dlv-ptab:hover { color: var(--text); }
  .dlv-ptab.active { color: var(--amber); border-bottom-color: var(--amber); }

  .dlv-pop-hint { color: #a87f3e; font-size: 11px; }

  /* Esri's Dark Gray Canvas sits a couple of stops lighter than the page,
     which leaves the amber and cyan overlays fighting the basemap for
     attention. Pulling it down and desaturating it puts the map back where
     CARTO's dark_nolabels used to sit, so the data stays the brightest thing
     on screen. Labels get lifted the other way to stay legible through it. */
  .dlv-tiles-base {
    filter: brightness(0.52) saturate(0.55) contrast(1.18);
  }
  .dlv-tiles-labels {
    filter: brightness(1.35) saturate(0.35) contrast(0.95);
    opacity: 0.72;
  }

  #dlvMap {
    width: 100%;
    height: 600px;
    background: #0a0a0c;
    border: 1px solid var(--border);
  }

  .dlv-row {
    padding: 11px 16px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s;
  }
  .dlv-row:hover, .dlv-row.hover { background: var(--surface-2); }
  .dlv-row.active {
    background: var(--surface-2);
    box-shadow: inset 2px 0 0 var(--amber);
  }
  .dlv-row.active .dlv-row-main { color: var(--amber); }
  .dlv-row-main {
    font-size: 13.5px;
    color: var(--text);
    display: flex;
    align-items: baseline;
    gap: 10px;
  }
  .dlv-rank {
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--text-faint);
    min-width: 18px;
  }
  .dlv-row-meta {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    margin-top: 3px;
    padding-left: 28px;
  }

  .dlv-table .dlv-zone { color: var(--text); }
  .dlv-table .dlv-lga {
    display: block;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    margin-top: 2px;
  }
  .dlv-table tr.dlv-thin { opacity: 0.55; }
  .dlv-na { font-size: 11px; color: var(--text-faint); cursor: help; }
  .flow-bar {
    display: inline-block;
    width: 54px;
    height: 6px;
    background: var(--surface-2);
    border-radius: 3px;
    overflow: hidden;
    vertical-align: middle;
  }
  .flow-bar-fill { display: block; height: 100%; }
  .flow-num { font-family: var(--mono); font-size: 11px; margin-left: 8px; color: var(--text-dim); }

  .dlv-corridor-grid { grid-template-columns: 1fr 1fr; }
  .corridor-list { margin-top: 14px; max-height: 520px; overflow-y: auto; }
  .corridor-row {
    padding: 11px 2px 13px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
  }
  .corridor-row:hover { background: var(--surface-2); }
  .corridor-head {
    display: flex;
    align-items: baseline;
    gap: 10px;
    font-size: 13px;
  }
  .corridor-rank { font-family: var(--mono); font-size: 10.5px; color: var(--text-faint); min-width: 18px; }
  .corridor-name { color: var(--text); flex: 1; }
  .corridor-metric { font-family: var(--mono); font-size: 11.5px; color: var(--amber); }
  .corridor-bar {
    height: 4px;
    background: var(--surface-2);
    border-radius: 2px;
    overflow: hidden;
    margin: 7px 0 6px 28px;
  }
  .corridor-bar span { display: block; height: 100%; opacity: 0.8; }
  .corridor-meta {
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--text-dim);
    padding-left: 28px;
  }

  .hz-wrap { overflow-x: auto; margin-top: 14px; }
  .hz-grid { min-width: 620px; }
  .hz-row { display: flex; align-items: center; gap: 2px; margin-bottom: 2px; }
  .hz-label {
    width: 110px;
    flex: 0 0 110px;
    font-size: 11.5px;
    color: var(--text-dim);
    text-align: right;
    padding-right: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .hz-cell {
    flex: 1;
    height: 20px;
    border-radius: 2px;
    min-width: 16px;
    background: var(--surface-2);
  }
  .hz-head .hz-cell { height: auto; background: none !important; }
  .hz-hour {
    font-family: var(--mono);
    font-size: 9.5px;
    color: var(--text-faint);
    text-align: center;
    padding-bottom: 4px;
  }

  /* ---- 停车判定 / classification evidence ---- */
  .dlv-method-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .dlv-tally { margin: 14px 0 18px; }
  .dlv-tally-row { display: flex; align-items: center; gap: 10px; margin-bottom: 9px; }
  .dlv-tally-label {
    flex: 0 0 82px;
    font-family: var(--chinese);
    font-size: 13px;
    display: flex;
    flex-direction: column;
    line-height: 1.25;
  }
  .dlv-tally-label em {
    font-family: var(--mono);
    font-style: normal;
    font-size: 9px;
    color: var(--text-faint);
    letter-spacing: 0.06em;
  }
  .dlv-tally-bar {
    flex: 1;
    height: 8px;
    background: var(--surface-2);
    border-radius: 4px;
    overflow: hidden;
  }
  .dlv-tally-bar span { display: block; height: 100%; opacity: 0.85; }
  .dlv-tally-num {
    flex: 0 0 40px;
    text-align: right;
    font-family: var(--mono);
    font-size: 12.5px;
    color: var(--text);
  }
  .dlv-tally-foot {
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--text-faint);
    margin-top: 12px;
    line-height: 1.6;
  }
  .dlv-howto { border-top: 1px solid var(--border); padding-top: 14px; }
  .dlv-howto-item {
    font-size: 12px;
    color: var(--text-dim);
    line-height: 1.65;
    margin-bottom: 7px;
    padding-left: 12px;
    position: relative;
  }
  .dlv-howto-item::before {
    content: '';
    position: absolute;
    left: 0; top: 8px;
    width: 4px; height: 4px;
    border-radius: 50%;
    background: var(--amber-dim);
  }
  .dlv-howto-item b {
    color: var(--text);
    font-weight: 500;
    margin-right: 7px;
  }

  .dlv-cases { margin-top: 14px; display: flex; flex-direction: column; gap: 10px; }
  .dlv-case {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    background: var(--surface);
  }
  .dlv-case-head {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 8px;
  }
  .dlv-case-kind {
    font-family: var(--chinese);
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid;
  }
  .dlv-case-secs { font-family: var(--mono); font-size: 12.5px; color: var(--text); }
  .dlv-case-where {
    font-size: 12px;
    color: var(--text-dim);
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .dlv-case-score { font-family: var(--mono); font-size: 10px; color: var(--text-faint); }
  .dlv-case-ev { display: flex; flex-wrap: wrap; gap: 5px; }
  .dlv-ev {
    font-family: var(--mono);
    font-size: 10px;
    padding: 2px 7px;
    border-radius: 4px;
    background: var(--surface-2);
    color: var(--text-dim);
    white-space: nowrap;
  }
  .dlv-ev em {
    font-style: normal;
    margin-right: 5px;
    font-weight: 500;
  }
  .dlv-ev.pos { color: #cbe3bf; }
  .dlv-ev.pos em { color: var(--green, #8fbf7f); }
  .dlv-ev.neg { color: #e8c3ca; }
  .dlv-ev.neg em { color: var(--rose); }
  .dlv-case-why {
    margin-top: 8px;
    padding-top: 7px;
    border-top: 1px dashed var(--border);
    font-size: 11.5px;
    color: var(--text-faint);
  }

  /* ---- table + heatmap control bars ---- */
  .dlv-table-bar {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
  }
  .dlv-table-foot {
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--text-faint);
    line-height: 1.5;
  }

  /* ---- map: metric switcher + legend ---- */
  .dlv-metric-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    padding-top: 4px;
  }
  .dlv-metric-title {
    font-family: var(--chinese);
    font-size: 12px;
    color: var(--text-faint);
  }
  .dlv-metric-chips { display: flex; flex-wrap: wrap; gap: 6px; }
  .dlv-mchip {
    background: none;
    border: 1px solid var(--border);
    border-radius: 5px;
    color: var(--text-faint);
    font-family: var(--chinese);
    font-size: 11.5px;
    padding: 4px 10px;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
  }
  .dlv-mchip:hover { color: var(--text); border-color: var(--border-bright); }
  .dlv-mchip.active {
    color: var(--bg);
    background: var(--amber);
    border-color: var(--amber);
  }
  .dlv-metric-note {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
  }
  .dlv-map-legend {
    display: flex;
    align-items: center;
    gap: 22px;
    flex-wrap: wrap;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
  }
  .dlv-leg-scale { display: flex; align-items: center; gap: 8px; }
  .dlv-leg-scale span { font-family: var(--mono); font-size: 10px; color: var(--text-faint); }
  .dlv-leg-scale em {
    font-family: var(--chinese);
    font-style: normal;
    font-size: 11px;
    color: var(--text-dim);
    margin-left: 4px;
  }
  .dlv-leg-grad {
    width: 120px;
    height: 8px;
    border-radius: 4px;
    background: linear-gradient(90deg, #1c1e25, #5c4226, #a87f3e, #e8b76d, #ffd897);
  }
  .dlv-leg-grad.rev { transform: scaleX(-1); }
  .dlv-leg-dots { display: flex; gap: 14px; flex-wrap: wrap; }
  .dlv-leg-dots span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11.5px;
    color: var(--text-dim);
  }
  .dlv-leg-dots i { width: 9px; height: 9px; border-radius: 50%; }
  .dlv-pop-sub { color: var(--text-faint); font-size: 11px; }

  /* ---- focus bar extras ---- */
  .dlv-focus-thin {
    font-family: var(--mono);
    font-size: 9.5px;
    color: var(--rose);
    border: 1px solid var(--rose);
    border-radius: 3px;
    padding: 1px 5px;
    margin-left: 8px;
    opacity: 0.8;
  }
  .dlv-focus-parts { display: flex; gap: 16px; flex-wrap: wrap; width: 100%; margin-top: 4px; }
  .dlv-part { display: flex; align-items: center; gap: 6px; }
  .dlv-part em {
    font-family: var(--chinese);
    font-style: normal;
    font-size: 10.5px;
    color: var(--text-faint);
  }
  .dlv-part-bar {
    width: 54px;
    height: 5px;
    background: var(--surface-2);
    border-radius: 3px;
    overflow: hidden;
  }
  .dlv-part-bar span { display: block; height: 100%; }

  .hz-row[data-zone] { cursor: pointer; }
  .hz-row[data-zone]:hover .hz-label { color: var(--amber); }

  /* ---- 区域档案 / structural profile ---- */
  .zp-wrap { overflow-x: auto; }
  .zp-grid { min-width: 860px; padding: 4px 0 0; }
  .zp-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 16px;
    border-bottom: 1px solid var(--border);
  }
  .zp-row[data-zone] { cursor: pointer; }
  .zp-row[data-zone]:hover { background: var(--surface-2); }
  .zp-row:last-child { border-bottom: none; }
  .zp-head {
    border-bottom: 1px solid var(--border-bright);
    padding-top: 10px;
    padding-bottom: 8px;
  }
  .zp-name {
    flex: 0 0 116px;
    font-size: 12.5px;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .zp-head .zp-name { color: var(--text-faint); font-size: 11px; }
  .zp-cell {
    flex: 1;
    min-width: 78px;
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .zp-head .zp-cell {
    flex-direction: column;
    align-items: flex-start;
    gap: 1px;
    font-family: var(--chinese);
    font-size: 11px;
    color: var(--text-dim);
    cursor: pointer;
  }
  .zp-head .zp-cell:hover { color: var(--amber); }
  .zp-head .zp-cell em {
    font-family: var(--mono);
    font-style: normal;
    font-size: 9px;
    color: var(--text-faint);
  }
  .zp-bar {
    flex: 1;
    height: 6px;
    background: var(--surface-2);
    border-radius: 3px;
    overflow: hidden;
    min-width: 20px;
  }
  .zp-bar span { display: block; height: 100%; opacity: 0.85; }
  .zp-val {
    flex: 0 0 38px;
    text-align: right;
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--text-dim);
  }
  .zp-dash { color: var(--text-faint); font-family: var(--mono); font-size: 10.5px; }

  /* ---- 判得准不准 / ground truth ---- */
  .dlv-val-grid { grid-template-columns: 1fr 1.6fr; gap: 20px; margin-top: 20px; }
  .dlv-align {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: 150px;
    padding: 14px 0;
  }
  .dlv-align-num {
    font-family: var(--mono);
    font-size: 46px;
    color: var(--amber-bright);
    line-height: 1;
    letter-spacing: -0.02em;
  }
  .dlv-align-num em {
    font-style: normal;
    font-size: 16px;
    color: var(--text-faint);
    margin-left: 6px;
    letter-spacing: 0;
  }
  .dlv-align-sub {
    margin-top: 14px;
    font-size: 12px;
    color: var(--text-dim);
    line-height: 1.7;
  }
  .dlv-misses { margin-top: 14px; display: flex; flex-direction: column; gap: 14px; }
  .dlv-miss-head { display: flex; align-items: baseline; gap: 9px; margin-bottom: 6px; }
  .dlv-miss-n { font-family: var(--mono); font-size: 19px; }
  .dlv-miss-label { font-size: 12.5px; color: var(--text); }
  .dlv-miss-bar {
    height: 6px;
    background: var(--surface-2);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 6px;
  }
  .dlv-miss-bar span { display: block; height: 100%; opacity: 0.85; }
  .dlv-miss-why { font-size: 11.5px; color: var(--text-faint); line-height: 1.6; }
  /* ---- 送完之后往哪骑 / dead-leg direction ---- */
  .ch-dirs { margin-top: 16px; display: flex; flex-direction: column; gap: 16px; }
  .ch-dir-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 7px; }
  .ch-dir-n { font-family: var(--mono); font-size: 24px; line-height: 1; }
  .ch-dir-n em { font-style: normal; font-size: 13px; margin-left: 2px; }
  .ch-dir-label { font-size: 13px; color: var(--text); }
  .ch-dir-cost { font-family: var(--mono); font-size: 10.5px; color: var(--text-faint); margin-left: auto; }
  .ch-dir-bar { height: 7px; background: var(--surface-2); border-radius: 4px; overflow: hidden; }
  .ch-dir-bar span { display: block; height: 100%; opacity: 0.85; }
  .ch-dir-why { margin-top: 6px; font-size: 11.5px; color: var(--text-dim); line-height: 1.6; }
  .ch-dir-foot {
    margin-top: 4px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
    line-height: 1.6;
  }
  .ch-tag {
    font-family: var(--chinese);
    font-weight: 400;
    font-size: 10px;
    padding: 1px 7px;
    border-radius: 999px;
    margin-left: 8px;
    border: 1px solid;
    white-space: nowrap;
  }
  .ch-tag.trap { color: var(--rose); border-color: var(--rose); background: rgba(217,122,138,0.1); }
  .ch-tag.hub { color: var(--cyan); border-color: var(--cyan); background: rgba(108,196,217,0.1); }

  .flow-ci {
    font-family: var(--mono);
    font-size: 9.5px;
    color: var(--text-faint);
    margin-left: 5px;
  }
  .dlv-part b {
    font-family: var(--mono);
    font-weight: 400;
    font-size: 10px;
    color: var(--text-dim);
    margin-left: 4px;
  }
  .dlv-note b { color: var(--text); font-weight: 500; }
  .dlv-note em { color: var(--amber); font-style: normal; }

  /* ---- 接单区 vs 送达区 / chain ---- */
  .dlv-chain-grid { grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
  .ch-list { margin-top: 12px; display: flex; flex-direction: column; }
  .ch-row {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s;
  }
  .ch-row:last-child { border-bottom: none; }
  .ch-row:hover { background: var(--surface-2); }
  .ch-row-thin { opacity: 0.55; }
  .ch-name {
    font-size: 13px;
    color: var(--text);
    margin-bottom: 6px;
    display: flex;
    align-items: baseline;
    gap: 9px;
  }
  .ch-name em {
    font-style: normal;
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--amber);
  }
  .ch-stats { display: flex; flex-wrap: wrap; gap: 6px 18px; }
  .ch-stats span {
    font-family: var(--mono);
    font-size: 11.5px;
    color: var(--text);
    display: inline-flex;
    align-items: baseline;
    gap: 5px;
  }
  .ch-stats i {
    font-style: normal;
    font-family: var(--chinese);
    font-size: 10.5px;
    color: var(--text-faint);
  }
  .ch-stats .ch-thin { opacity: 0.5; }
  .ch-flag {
    margin-top: 7px;
    font-size: 11px;
    color: var(--rose);
    opacity: 0.9;
  }
  .ch-thin-note {
    margin-top: 5px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-faint);
  }

  .ch-split {
    margin: 14px 0 4px;
    padding-top: 12px;
    border-top: 1px dashed var(--border-bright);
    font-family: var(--chinese);
    font-size: 11px;
    color: var(--rose);
    letter-spacing: 0.05em;
  }

  .ch-flows { margin-top: 14px; display: flex; flex-direction: column; gap: 7px; }
  .ch-flow {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text-dim);
  }
  .ch-flow-from, .ch-flow-to { flex: 0 0 132px; }
  .ch-flow-to { color: var(--text); }
  .ch-flow.same .ch-flow-to { color: var(--cyan); }
  .ch-flow-arrow { color: var(--text-faint); font-family: var(--mono); }
  .ch-flow-bar {
    flex: 1;
    height: 6px;
    background: var(--surface-2);
    border-radius: 3px;
    overflow: hidden;
    min-width: 40px;
  }
  .ch-flow-bar span { display: block; height: 100%; opacity: 0.85; }
  .ch-flow-n {
    flex: 0 0 22px;
    text-align: right;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-faint);
  }

  @media (max-width: 900px) {
    .dlv-chain-grid { grid-template-columns: 1fr; }
    .ch-flow-from, .ch-flow-to { flex-basis: 92px; font-size: 11px; }
  }

  @media (max-width: 900px) {
    .dlv-val-grid { grid-template-columns: 1fr; }
  }

  @media (max-width: 1100px) {
    .dlv-method-grid { grid-template-columns: 1fr; }
  }

  @media (max-width: 900px) {
    .dlv-corridor-grid { grid-template-columns: 1fr; }
    #dlvMap { height: 420px; }
  }

  /* ============ 这一单该不该接 / Take it or leave it ============ */
  /* The section argues by putting two sorts of the same 143 orders next to
     each other, so the layout's job is to make those two blocks comparable
     at a glance and to keep every headline number large. */
  .of-hero {
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 24px 26px;
  }
  .of-hero-line { font-family: var(--serif); font-size: 21px; line-height: 1.7; color: var(--text); }
  .of-hero-line b { color: var(--amber); font-weight: 500; }
  .of-hero-nums {
    display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
    margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--border);
  }
  .of-hn { flex: 1; min-width: 132px; display: flex; flex-direction: column; }
  .of-hn-v { font-family: var(--serif); font-size: 36px; line-height: 1.1; color: var(--text); }
  .of-hn-v.dim { color: var(--text-faint); }
  .of-hn-v.good { color: #8fbf7f; }
  .of-hn-l { font-size: 12.5px; color: var(--text-dim); margin-top: 7px; }
  .of-hn-f { font-size: 10.5px; color: var(--text-faint); margin-top: 3px; line-height: 1.5; }
  .of-hn-op { font-family: var(--mono); font-size: 10.5px; color: var(--text-faint); padding-bottom: 28px; }
  @media (max-width: 760px) {
    .of-hero-line { font-size: 17px; }
    .of-hn-v { font-size: 28px; }
    .of-hn-op { display: none; }
  }

  /* One order as a stacked bar: fare, then the flat quest block beside it. */
  .of-stack { display: flex; height: 58px; border: 1px solid var(--border); overflow: hidden; }
  .of-stack-seg {
    display: flex; flex-direction: column; justify-content: center;
    padding: 0 12px; overflow: hidden; white-space: nowrap;
  }
  .of-stack-seg i { font-style: normal; font-family: var(--mono); font-size: 9.5px; letter-spacing: .08em; }
  .of-stack-seg b { font-family: var(--serif); font-size: 20px; font-weight: 400; }
  .of-stack-seg.fare { background: rgba(108, 196, 217, 0.16); }
  .of-stack-seg.fare i { color: var(--cyan); }
  .of-stack-seg.fare b { color: var(--cyan); }
  .of-stack-seg.quest { background: rgba(232, 183, 109, 0.2); }
  .of-stack-seg.quest i { color: var(--amber); }
  .of-stack-seg.quest b { color: var(--amber); }
  .of-stack-out { margin-top: 16px; font-size: 13px; line-height: 1.85; color: var(--text-dim); }
  .of-stack-out b { font-family: var(--mono); font-size: 15px; font-weight: 400; }
  .of-stack-out b.fare { color: var(--cyan); }
  .of-stack-out b.all { color: var(--amber); }
  .of-stack-out em { color: var(--amber); font-style: normal; }

  /* The two sorts. `of-key` is the one that carries the finding. */
  .of-two, .of-three { display: grid; gap: 20px; margin-top: 20px; }
  .of-two { grid-template-columns: 1fr 1fr; }
  .of-three { grid-template-columns: repeat(3, 1fr); }
  @media (max-width: 900px) { .of-two, .of-three { grid-template-columns: 1fr; } }
  .of-key { border-left: 2px solid var(--amber); }
  .of-brow {
    display: grid; grid-template-columns: 116px 1fr 46px 34px;
    gap: 9px; align-items: center; margin-bottom: 11px;
  }
  .of-brow-k { font-family: var(--mono); font-size: 11px; color: var(--text); line-height: 1.35; }
  .of-brow-k em { display: block; font-style: normal; font-size: 9.5px; color: var(--text-faint); }
  .of-brow-bar { height: 9px; background: var(--surface-2); overflow: hidden; }
  .of-brow-bar i { display: block; height: 100%; background: var(--amber-dim); }
  .of-key .of-brow-bar i { background: var(--amber); }
  .of-brow-r { font-family: var(--mono); font-size: 13px; color: var(--amber); text-align: right; }
  .of-brow-n { font-family: var(--mono); font-size: 9.5px; color: var(--text-faint); text-align: right; }
  .of-bfoot {
    margin-top: 12px; padding-top: 11px; border-top: 1px solid var(--border);
    font-size: 11.5px; line-height: 1.7; color: var(--text-faint);
  }
  .of-bfoot b { font-family: var(--mono); color: var(--text-dim); font-weight: 400; }
  .of-bfoot em { color: var(--amber); font-style: normal; }
  .of-punch {
    margin-top: 20px; padding: 18px 22px;
    background: var(--surface-2); border-left: 2px solid var(--amber);
    font-size: 13.5px; line-height: 1.9; color: var(--text-dim);
  }
  .of-punch b { color: var(--text); font-weight: 500; }
  .of-punch em { color: var(--amber); font-style: normal; }

  /* Calculator */
  .of-calc-card { margin-top: 20px; }
  .of-calc-grid { display: grid; grid-template-columns: 272px minmax(0, 1fr); gap: 26px; align-items: start; }
  @media (max-width: 860px) { .of-calc-grid { grid-template-columns: 1fr; } }
  .of-controls { display: grid; gap: 13px; }
  .of-ctl > span {
    display: flex; justify-content: space-between; align-items: baseline;
    font-size: 11.5px; color: var(--text-dim); margin-bottom: 6px;
  }
  .of-ctl > span b { font-family: var(--mono); font-size: 13px; color: var(--amber); font-weight: 400; }
  .of-ctl input[type="range"] {
    width: 100%; -webkit-appearance: none; appearance: none;
    height: 3px; background: var(--border-bright); outline: none;
  }
  .of-ctl input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none;
    width: 14px; height: 14px; border-radius: 50%; background: var(--amber); cursor: pointer;
  }
  .of-ctl input[type="range"]::-moz-range-thumb {
    width: 14px; height: 14px; border: none; border-radius: 50%; background: var(--amber); cursor: pointer;
  }
  .of-check { display: flex; align-items: center; gap: 7px; font-size: 11.5px; color: var(--text-dim); cursor: pointer; }
  .of-check input { accent-color: var(--amber); }

  .of-verdict { border-top: 1px solid var(--border); padding-top: 14px; margin-top: 2px; }
  .of-vd-big { display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; }
  .of-vd-big b { font-family: var(--serif); font-size: 44px; font-weight: 400; line-height: 1.05; }
  .of-vd-big em { font-family: var(--mono); font-size: 13px; font-style: normal; color: var(--text-faint); }
  .of-vd-big span { flex: 1 0 100%; font-size: 11.5px; margin-top: 2px; }
  .of-vd-big.take b { color: #8fbf7f; }
  .of-vd-big.take span { color: #8fbf7f; }
  .of-vd-big.skip b, .of-vd-big.skip span { color: var(--rose); }
  .of-vd-big.edge b, .of-vd-big.edge span { color: var(--amber); }
  .of-vd-math { margin-top: 12px; font-size: 11.5px; line-height: 1.8; color: var(--text-dim); }
  .of-vd-math b { font-family: var(--mono); font-size: 13px; color: var(--amber); font-weight: 400; }
  .of-vd-hint { display: block; margin-top: 6px; color: var(--text-faint); font-size: 11px; }

  .of-plot svg { width: 100%; max-width: 760px; height: auto; display: block; }
  .of-plot-key {
    display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 8px;
    font-size: 10.5px; color: var(--text-faint);
  }
  .of-plot-key span { display: flex; align-items: center; gap: 6px; }
  .of-k-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); }
  .of-k-dot.good { background: #8fbf7f; }
  .of-k-dot.bad { background: var(--rose); }
  .of-k-line { width: 14px; height: 0; border-top: 1.5px dashed var(--amber-bright); }
  .of-k-you { width: 9px; height: 9px; border-radius: 50%; border: 2px solid #8fbf7f; }

  /* Weekly quest per order, with the floor's start date marked by colour. */
  .of-wk-rows { display: grid; gap: 7px; }
  .of-wk { display: grid; grid-template-columns: 52px 1fr 52px 46px; gap: 10px; align-items: center; }
  .of-wk-d { font-family: var(--mono); font-size: 10.5px; color: var(--text-faint); }
  .of-wk.after .of-wk-d { color: var(--amber); }
  .of-wk-bar { height: 11px; background: var(--surface-2); overflow: hidden; }
  .of-wk-bar i { display: block; height: 100%; background: var(--border-bright); }
  .of-wk.after .of-wk-bar i { background: var(--amber); }
  .of-wk-v { font-family: var(--mono); font-size: 12px; color: var(--text-dim); text-align: right; }
  .of-wk.after .of-wk-v { color: var(--amber); }
  .of-wk-n { font-family: var(--mono); font-size: 9.5px; color: var(--text-faint); text-align: right; }
  .of-foot {
    margin-top: 16px; padding-top: 13px; border-top: 1px solid var(--border);
    font-size: 11.5px; line-height: 1.8; color: var(--text-faint);
  }
  .of-foot b { color: var(--text-dim); font-weight: 500; }
  .of-foot em { color: var(--amber); font-style: normal; }

  /* Three short cards */
  .of-tip-lead { font-family: var(--serif); font-size: 16px; color: var(--amber); margin-bottom: 10px; }
  .of-tip-body { font-size: 12px; line-height: 1.8; color: var(--text-dim); margin-top: 12px; }
  .of-tip-body em { color: var(--amber); font-style: normal; }
  .of-tip-body b { color: var(--text); font-weight: 500; }
  .of-hours-row { display: flex; gap: 7px; align-items: flex-end; }
  .of-hr { flex: 1; text-align: center; }
  .of-hr-bar { height: 74px; display: flex; align-items: flex-end; background: var(--surface-2); }
  .of-hr-bar span { display: block; width: 100%; }
  .of-hr-rate { font-family: var(--mono); font-size: 11px; color: var(--amber); margin-top: 5px; }
  .of-hr-h { font-family: var(--mono); font-size: 9.5px; color: var(--text-faint); }
  .of-hr.best .of-hr-rate { color: #8fbf7f; }
  .of-hr.worst .of-hr-rate { color: var(--rose); }
  .of-mini { display: grid; grid-template-columns: 108px 1fr 46px; gap: 8px; align-items: center; margin-bottom: 6px; }
  .of-mini-k { font-family: var(--mono); font-size: 10px; color: var(--text-dim); }
  .of-mini-bar { height: 6px; background: var(--surface-2); overflow: hidden; }
  .of-mini-bar i { display: block; height: 100%; background: var(--amber-dim); }
  .of-mini-v { font-family: var(--mono); font-size: 10.5px; color: var(--amber); text-align: right; }
  .of-src { display: block; margin-top: 4px; font-size: 10.5px; line-height: 1.65; color: var(--text-faint); }

  @media (max-width: 620px) {
    .of-plot { overflow-x: auto; }
    .of-plot svg { min-width: 520px; }
    .of-brow { grid-template-columns: 96px 1fr 42px 28px; }
    .of-vd-big b { font-size: 36px; }
  }
  .of-plot-note {
    margin-top: 7px; font-size: 10.5px; line-height: 1.7; color: var(--text-faint);
    padding-top: 7px; border-top: 1px solid var(--border);
  }