/* =========================================================================
   XOSS 路书分析 · 深色运动科技设计系统
   "Pro Cycling Cockpit" - 专业骑行驾驶舱
   ========================================================================= */

:root {
  /* Base - Carbon dark */
  --bg-base: #0a0e14;
  --bg-surface: #131922;
  --bg-elevated: #1a2230;
  --bg-hover: #232d3f;
  --bg-input: #0f1620;

  /* Borders */
  --border-subtle: #1e2838;
  --border-default: #2a3441;
  --border-strong: #3a4759;

  /* Text */
  --text-primary: #e6edf3;
  --text-secondary: #9aa7b8;
  --text-muted: #64748b;
  --text-dim: #475569;

  /* Accent - XOSS sport green-cyan */
  --accent: #00e5a0;
  --accent-dim: #00b380;
  --accent-glow: rgba(0, 229, 160, 0.15);
  --accent-blue: #0099ff;
  --accent-blue-glow: rgba(0, 153, 255, 0.15);

  /* Semantic */
  --danger: #ff4757;
  --danger-bg: rgba(255, 71, 87, 0.1);
  --warning: #ffa502;
  --warning-bg: rgba(255, 165, 2, 0.1);
  --success: #00e5a0;
  --success-bg: rgba(0, 229, 160, 0.1);

  /* Fonts */
  --font-display: 'Saira Condensed', 'PingFang SC', sans-serif;
  --font-body: 'Manrope', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, monospace;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px var(--accent-glow);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  background-image:
    radial-gradient(circle at 20% 0%, rgba(0, 229, 160, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 100%, rgba(0, 153, 255, 0.04) 0%, transparent 50%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5c-8 0-15 4-19 11M30 5c8 0 15 4 19 11M30 55c-8 0-15-4-19-11M30 55c8 0 15-4 19-11M5 30c0-8 4-15 11-19M5 30c0 8 4 15 11 19M55 30c0-8-4-15-11-19M55 30c0 8-4 15-11 19' stroke='%231a2230' stroke-width='0.5' fill='none' opacity='0.5'/%3E%3C/svg%3E");
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app-root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* =========================================================================
   Header / Navigation
   ========================================================================= */

.app-header {
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-default);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 0 rgba(0, 229, 160, 0.08);
}

.header-content {
  max-width: 1440px;
  margin: 0 auto;
  padding: 12px 28px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  color: var(--bg-base);
  box-shadow: 0 0 16px var(--accent-glow);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.logo-accent {
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 2px;
}

.header-subtitle {
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
  padding-left: 20px;
  border-left: 1px solid var(--border-default);
}

.header-nav {
  margin-left: auto;
  display: flex;
  gap: 4px;
}

.nav-link {
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s;
  white-space: nowrap;
  position: relative;
}

.nav-link:hover {
  color: var(--accent);
  background: var(--accent-glow);
}

.nav-link.active {
  color: var(--accent);
  background: var(--accent-glow);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent);
}

/* =========================================================================
   Main / Footer
   ========================================================================= */

.app-main {
  flex: 1;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  padding: 28px;
}

.app-footer {
  text-align: center;
  padding: 20px;
  color: var(--text-muted);
  font-size: 12px;
  border-top: 1px solid var(--border-subtle);
  background: rgba(10, 14, 20, 0.6);
  backdrop-filter: blur(10px);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--accent);
}

.footer-dot {
  color: var(--text-dim);
}

/* =========================================================================
   Loading / Error / Warning
   ========================================================================= */

.loading {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-secondary);
}

.loading::before {
  content: '';
  display: inline-block;
  width: 36px;
  height: 36px;
  border: 3px solid var(--border-default);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 16px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.error {
  text-align: center;
  padding: 40px;
  color: var(--danger);
  font-size: 15px;
}

.warning-box {
  background: var(--warning-bg);
  border: 1px solid rgba(255, 165, 2, 0.3);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: var(--warning);
  font-size: 13px;
  margin-bottom: 16px;
}

/* =========================================================================
   Tabs
   ========================================================================= */

.tab-bar {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border-default);
  margin-bottom: 24px;
}

.tab-btn {
  padding: 10px 22px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-body);
  transition: all 0.2s;
  position: relative;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.tab-btn:hover {
  color: var(--accent);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* =========================================================================
   Charts Grid
   ========================================================================= */

.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 20px;
}

.chart-card {
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-subtle);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.chart-card:hover {
  border-color: var(--border-default);
  box-shadow: var(--shadow-md);
}

.chart-container {
  width: 100%;
  height: 320px;
}

.chart-container-large {
  width: 100%;
  height: 400px;
}

.chart-container-elevation {
  width: 100%;
  height: 280px;
  margin-top: 12px;
}

.chart-container-medium {
  width: 100%;
  height: 360px;
  max-width: 600px;
  margin: 0 auto;
}

.chart-container-small {
  width: 100%;
  height: 240px;
}

.climb-chart-section {
  margin-bottom: 16px;
  padding: 14px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

/* =========================================================================
   Filter Bar
   ========================================================================= */

.filter-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-select, .filter-input {
  padding: 9px 14px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font-body);
  background: var(--bg-input);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.filter-select:focus, .filter-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.filter-input {
  flex: 1;
  min-width: 200px;
}

.filter-select option {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.result-count {
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-mono);
  white-space: nowrap;
}

/* =========================================================================
   Data Table
   ========================================================================= */

.table-wrapper {
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  overflow: auto;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-subtle);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table thead {
  background: var(--bg-elevated);
  position: sticky;
  top: 0;
  z-index: 5;
}

.data-table th {
  padding: 12px 14px;
  text-align: left;
  font-weight: 700;
  font-family: var(--font-body);
  color: var(--text-secondary);
  white-space: nowrap;
  border-bottom: 1px solid var(--border-default);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
}

.data-table th.clickable {
  cursor: pointer;
  user-select: none;
}

.data-table th.clickable:hover {
  color: var(--accent);
}

.sort-icon {
  font-size: 10px;
  color: var(--text-dim);
  margin-left: 2px;
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.data-table tbody tr {
  transition: background 0.15s;
}

.data-table tbody tr:hover {
  background: var(--bg-hover);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* =========================================================================
   Badges
   ========================================================================= */

.badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 700;
  color: white;
  letter-spacing: 0.3px;
}

.badge-easy { background: #22c55e; box-shadow: 0 0 8px rgba(34, 197, 94, 0.3); }
.badge-normal { background: #3b82f6; box-shadow: 0 0 8px rgba(59, 130, 246, 0.3); }
.badge-challenge { background: #f59e0b; box-shadow: 0 0 8px rgba(245, 158, 11, 0.3); }
.badge-hard { background: #ea580c; box-shadow: 0 0 8px rgba(234, 88, 12, 0.3); }
.badge-extreme { background: #dc2626; box-shadow: 0 0 8px rgba(220, 38, 38, 0.3); }
.badge-none { background: var(--border-strong); color: var(--text-muted); }

.climb-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  color: white;
  font-family: var(--font-mono);
}

.climb-HC { background: #dc2626; }
.climb-1 { background: #ea580c; }
.climb-2 { background: #f59e0b; }
.climb-3 { background: #65a30d; }
.climb-4 { background: #0891b2; }
.climb-5 { background: #6b7280; }

/* =========================================================================
   Pagination
   ========================================================================= */

.pagination {
  display: flex;
  gap: 6px;
  justify-content: center;
  align-items: center;
  margin-top: 24px;
  flex-wrap: wrap;
}

.pagination button {
  padding: 7px 13px;
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font-mono);
  transition: all 0.2s;
}

.pagination button:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.pagination button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.page-btn.active {
  background: var(--accent);
  color: var(--bg-base);
  border-color: var(--accent);
  font-weight: 700;
  box-shadow: 0 0 12px var(--accent-glow);
}

.page-info {
  color: var(--text-muted);
  font-size: 12px;
  margin-left: 8px;
  font-family: var(--font-mono);
}

/* =========================================================================
   Cards Grid
   ========================================================================= */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.route-card {
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.25s;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.route-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.25s;
}

.route-card:hover {
  box-shadow: var(--shadow-md), 0 0 24px var(--accent-glow);
  transform: translateY(-3px);
  border-color: var(--border-strong);
}

.route-card:hover::before {
  opacity: 1;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-score {
  font-weight: 700;
  color: var(--accent);
  font-size: 16px;
  font-family: var(--font-mono);
}

.card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.card-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.card-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.card-footer {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
}

.mini-stat {
  font-size: 11px;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  padding: 3px 10px;
  border-radius: 10px;
  font-family: var(--font-mono);
}

/* =========================================================================
   Detail Page
   ========================================================================= */

/* PRO Layout: Full-screen immersive map */
.pro-container {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  overflow: hidden;
  background: var(--bg-base);
}

.pro-map {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

.pro-map .leaflet-container {
  width: 100%; height: 100%;
  background: var(--bg-base);
}

/* Header floating bar */
.pro-header {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 1100;
  background: rgba(10, 14, 20, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  pointer-events: none;
}
.pro-header > * { pointer-events: auto; }

.pro-header .back-btn {
  padding: 5px 12px;
  font-size: 13px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}
.pro-header .back-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.pro-header .pro-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 400px;
}

.pro-header .detail-badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pro-header .badge,
.pro-header .score-badge,
.pro-header .meta-badge {
  font-size: 12px;
  padding: 2px 10px;
}

/* Compact stat bar */
.pro-stat-bar {
  display: flex;
  gap: 16px;
  margin-left: auto;
  flex-wrap: wrap;
}
.pro-stat-item {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-size: 12px;
}
.pro-stat-item .stat-label {
  color: var(--text-muted);
}
.pro-stat-item .stat-value {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
}

/* Elevation overlay */
.pro-elevation {
  position: absolute;
  bottom: 0; left: 0;
  right: 0;
  height: 200px;
  z-index: 1200;
  background: rgba(10, 14, 20, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-default);
  transition: transform 0.3s ease, height 0.3s ease;
}
.pro-elevation.collapsed {
  transform: translateY(170px);
}
.pro-elevation .elevation-toggle {
  position: absolute;
  top: -1px; left: 50%;
  transform: translateX(-50%);
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-bottom: none;
  border-radius: 6px 6px 0 0;
  padding: 2px 16px;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  z-index: 10;
}
.pro-elevation .elevation-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.pro-elevation .chart-container-elevation {
  width: 100%;
  height: 100%;
  padding: 8px 12px 4px;
}
.pro-elevation .grade-legend {
  position: absolute;
  bottom: 4px; left: 12px;
  display: flex;
  gap: 4px;
  font-size: 10px;
  z-index: 5;
}
.pro-elevation .grade-legend .legend-item {
  display: flex;
  align-items: center;
  gap: 2px;
  color: var(--text-muted);
}
.pro-elevation .grade-legend .legend-color {
  width: 10px; height: 10px;
  border-radius: 2px;
}

/* Tab navigation (horizontal, embedded in panel header) */
.pro-tabnav {
  display: flex;
  flex-direction: row;
  gap: 2px;
  flex-wrap: wrap;
  padding: 0;
}
.pro-tabnav .tab-btn {
  padding: 5px 12px;
  background: rgba(26, 34, 48, 0.6);
  border: 1px solid var(--border-default);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-body);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.pro-tabnav .tab-btn:hover {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border-color: var(--border-strong);
}
.pro-tabnav .tab-btn.active {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

/* Tab content panel (left side, scrollable) */
.pro-tabpanel {
  position: absolute;
  top: 56px; left: 0;
  bottom: 200px;
  width: 432px;
  z-index: 1400;
  background: rgba(19, 25, 34, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid var(--border-default);
  overflow-y: auto;
  overflow-x: hidden;
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}
.pro-tabpanel.collapsed {
  transform: translateX(-100%);
}
.pro-tabpanel::-webkit-scrollbar {
  width: 6px;
}
.pro-tabpanel::-webkit-scrollbar-track {
  background: transparent;
}
.pro-tabpanel::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}
.pro-tabpanel::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

.pro-tabpanel .panel-header {
  position: sticky;
  top: 0;
  background: rgba(19, 25, 34, 0.95);
  backdrop-filter: blur(8px);
  padding: 12px 16px 8px;
  border-bottom: 1px solid var(--border-default);
  z-index: 10;
}
.pro-tabpanel .panel-header h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}
.pro-tabpanel .panel-content {
  padding: 12px 16px 24px;
}

/* Tab nav inside panel */
.pro-tabpanel .pro-tabnav {
  padding: 8px 12px 6px;
  border-bottom: 1px solid var(--border-default);
  flex-shrink: 0;
}

/* Mobile drag handle (hidden on desktop) */
.mobile-drag-handle { display: none; }

/* Panel collapse button (left side of panel) */
.pro-panel-toggle {
  position: absolute;
  top: 50%; left: 432px;
  transform: translateY(-50%);
  z-index: 1450;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-left: none;
  border-radius: 0 8px 8px 0;
  padding: 12px 4px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 14px;
  transition: all 0.2s;
  writing-mode: vertical-rl;
}
.pro-panel-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.pro-panel-toggle.collapsed {
  left: 0;
}

/* Summary cards in tab panels */
.pro-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
  margin-bottom: 16px;
}
.pro-summary-card {
  background: rgba(26, 34, 48, 0.6);
  border: 1px solid var(--border-default);
  border-radius: 8px;
  padding: 8px 10px;
}
.pro-summary-card .card-label {
  font-size: 10px;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.pro-summary-card .card-value {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}
.pro-summary-card .card-value.accent {
  color: var(--accent);
}
.pro-summary-card .card-value.warning {
  color: var(--warning);
}
.pro-summary-card .card-value.danger {
  color: var(--danger);
}

/* Chart containers in panels */
.pro-chart-mini {
  width: 100%;
  height: 200px;
  margin-bottom: 12px;
}
.pro-chart-small {
  width: 100%;
  height: 160px;
  margin-bottom: 12px;
}

/* Data tables in panels */
.pro-table-wrapper {
  overflow-x: auto;
  margin-bottom: 12px;
  border-radius: 8px;
  border: 1px solid var(--border-default);
}
.pro-table-wrapper table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.pro-table-wrapper th {
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-weight: 600;
  padding: 6px 8px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--border-default);
  position: sticky;
  top: 0;
}
.pro-table-wrapper td {
  padding: 5px 8px;
  border-bottom: 1px solid rgba(42, 52, 65, 0.5);
  color: var(--text-secondary);
  white-space: nowrap;
}
.pro-table-wrapper tr {
  cursor: pointer;
  transition: background 0.15s;
}
.pro-table-wrapper tr:hover td {
  background: rgba(0, 229, 160, 0.05);
}
.pro-table-wrapper tr.row-highlighted td {
  background: rgba(255, 165, 2, 0.12);
}

/* Toggle switches in panels */
.pro-toggle-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.pro-toggle-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
}
.pro-toggle-item input[type="checkbox"] {
  accent-color: var(--accent);
}

/* Section divider in panels */
.pro-section-divider {
  height: 1px;
  background: var(--border-default);
  margin: 12px 0;
}

/* Dimension detail cards (Tab 7) */
.pro-dimension-card {
  background: rgba(26, 34, 48, 0.6);
  border: 1px solid var(--border-default);
  border-radius: 8px;
  margin-bottom: 8px;
  overflow: hidden;
}
.pro-dimension-card .dim-header {
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: background 0.15s;
}
.pro-dimension-card .dim-header:hover {
  background: rgba(0, 229, 160, 0.05);
}
.pro-dimension-card .dim-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}
.pro-dimension-card .dim-score {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}
.pro-dimension-card .dim-detail {
  padding: 8px 12px;
  border-top: 1px solid var(--border-default);
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.6;
}
.pro-dimension-card.expanded .dim-detail {
  display: block;
}
.pro-dimension-card .dim-detail {
  display: none;
}

/* Loading state */
.pro-loading {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 24px;
}

/* Responsive - Mobile */
@media (max-width: 768px) {
  /* Elevation: shorter, full width */
  .pro-elevation {
    right: 0; height: 120px;
  }
  .pro-elevation .grade-legend { display: none; }

  /* Tab panel: bottom sheet drawer */
  .pro-tabpanel {
    left: 0; right: 0; width: 100%;
    top: auto; bottom: 0;
    height: 60vh;
    border-right: none;
    border-top: 1px solid var(--border-default);
    border-radius: 16px 16px 0 0;
    box-shadow: 0 -8px 32px rgba(0,0,0,0.5);
  }
  .pro-tabpanel.collapsed {
    transform: translateY(calc(100% - 48px));
  }

  /* Drag handle on top of bottom sheet */
  .mobile-drag-handle {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 0 4px;
    cursor: grab;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border-default);
    background: rgba(19, 25, 34, 0.98);
    border-radius: 16px 16px 0 0;
  }
  .pro-tabpanel .mobile-drag-handle:active {
    cursor: grabbing;
  }
  .pro-tabpanel .mobile-drag-handle .handle-bar {
    width: 36px; height: 4px;
    border-radius: 2px;
    background: var(--border-strong);
  }
  .pro-tabpanel .mobile-drag-handle .handle-label {
    font-size: 11px;
    color: var(--text-muted);
  }

  /* Tab nav: scrollable chips */
  .pro-tabpanel .pro-tabnav {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding: 6px 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .pro-tabpanel .pro-tabnav::-webkit-scrollbar { display: none; }
  .pro-tabnav .tab-btn {
    padding: 4px 12px;
    font-size: 12px;
    flex-shrink: 0;
  }

  /* Panel toggle: hidden on mobile, replaced by drag handle */
  .pro-panel-toggle { display: none; }

  /* Header: compact */
  .pro-header {
    padding: 6px 10px;
    gap: 6px;
  }
  .pro-header .back-btn {
    padding: 4px 8px;
    font-size: 12px;
  }
  .pro-header .pro-title {
    font-size: 14px;
    max-width: 140px;
  }
  .pro-header .pro-stat-bar { display: none; }
  .pro-header .detail-badges { gap: 4px; }
  .pro-header .badge,
  .pro-header .score-badge,
  .pro-header .meta-badge {
    font-size: 10px;
    padding: 1px 6px;
  }
  .pro-header .score-badge { display: none; }

  /* Charts: smaller */
  .pro-chart-mini { height: 160px; }
  .pro-chart-small { height: 130px; }

  /* Tables: smaller font */
  .pro-table-wrapper th { padding: 4px 6px; font-size: 11px; }
  .pro-table-wrapper td { padding: 3px 6px; font-size: 11px; }

  /* Summary cards: 2 columns */
  .pro-summary-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }
  .pro-summary-card { padding: 6px 8px; }
  .pro-summary-card .card-label { font-size: 9px; }
  .pro-summary-card .card-value { font-size: 13px; }

  /* Dimension cards */
  .pro-dimension-card .dim-header { padding: 6px 10px; }
  .pro-dimension-card .dim-name { font-size: 12px; }
  .pro-dimension-card .dim-score { font-size: 13px; }
  .pro-dimension-card .dim-detail { padding: 6px 10px; font-size: 10px; }

  /* Panel content padding */
  .pro-tabpanel .panel-content { padding: 8px 10px 20px; }

  /* Toggle row */
  .pro-toggle-row { gap: 8px; }
  .pro-toggle-item { font-size: 11px; }
}

.detail-header {
  margin-bottom: 24px;
}

.back-btn {
  padding: 7px 16px;
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: 14px;
  transition: all 0.2s;
}

.back-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.detail-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.detail-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.score-badge {
  background: var(--bg-elevated);
  color: var(--accent);
  padding: 3px 14px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font-mono);
  border: 1px solid var(--border-default);
}

.meta-badge {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  padding: 3px 14px;
  border-radius: 12px;
  font-size: 13px;
  border: 1px solid var(--border-default);
}

.loop-badge {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s;
}

.stat-card:hover {
  border-color: var(--border-default);
}

.stat-card-label {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-card-value {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* =========================================================================
   Section / Map
   ========================================================================= */

.section {
  margin-bottom: 32px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 28px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-default);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 18px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent-glow);
}

.map-container {
  width: 100%;
  height: 500px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-default);
}

.map-detail-section {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.map-detail-left {
  flex: 1 1 60%;
  min-width: 0;
}

.map-detail-right {
  flex: 1 1 40%;
  min-width: 300px;
  max-height: 820px;
  overflow-y: auto;
}

.map-detail-right .table-wrapper {
  max-height: 700px;
}

.table-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.tab-btn-sm {
  padding: 6px 14px;
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-body);
  transition: all 0.2s;
}

.tab-btn-sm:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.tab-btn-sm.active {
  background: var(--accent);
  color: var(--bg-base);
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

.detail-table {
  font-size: 13px;
}

.feature-row {
  cursor: pointer;
  transition: background 0.15s;
}

.feature-row:hover {
  background: var(--warning-bg);
}

.feature-row.row-highlighted {
  background: rgba(255, 165, 2, 0.15);
  box-shadow: inset 3px 0 0 var(--warning);
}

.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

.data-source-note {
  padding: 10px 16px;
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-subtle);
}

/* =========================================================================
   Road Surface
   ========================================================================= */

.road-surface-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.rs-card {
  padding: 18px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  text-align: center;
}

.rs-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.rs-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
}

.rs-sub {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
}

.pavement-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
}

.pavement-paved { background: #22c55e; }
.pavement-unpaved { background: #a16207; }
.pavement-mixed { background: #f59e0b; }
.pavement-unknown { background: var(--border-strong); }

.pavement-badge-sm {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
}

.pavement-badge-sm.pavement-paved { background: #22c55e; }
.pavement-badge-sm.pavement-unpaved { background: #a16207; }
.pavement-badge-sm.pavement-mixed { background: #f59e0b; }

.bridge-badge {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  background: #6366f1;
}

/* =========================================================================
   Risk Badges
   ========================================================================= */

.risk-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
}

.risk-badge-sm {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
}

.risk-高危 { background: #dc2626; box-shadow: 0 0 8px rgba(220, 38, 38, 0.3); }
.risk-危险 { background: #ea580c; }
.risk-注意 { background: #f59e0b; }
.risk-安全 { background: #22c55e; }

.risk-point-count {
  font-size: 12px;
  font-weight: 700;
  color: var(--danger);
  font-family: var(--font-mono);
}

.descent-risk-section {
  margin-top: 16px;
  padding: 14px;
  background: var(--danger-bg);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(220, 38, 38, 0.2);
}

.risk-section-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--danger);
  margin-bottom: 12px;
  font-family: var(--font-display);
  letter-spacing: 0.5px;
}

.descent-risk-card {
  margin-bottom: 12px;
  padding: 12px;
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--danger);
}

.risk-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.risk-card-loc {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  font-family: var(--font-mono);
}

.risk-point-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  margin: 4px 0;
  border-radius: 4px;
  font-size: 12px;
}

.risk-point-高危 { background: rgba(220, 38, 38, 0.1); }
.risk-point-危险 { background: rgba(234, 88, 12, 0.1); }
.risk-point-注意 { background: rgba(245, 158, 11, 0.1); }

.risk-point-warnings {
  flex: 1;
  color: var(--text-secondary);
}

.risk-point-dist {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  font-family: var(--font-mono);
}

/* =========================================================================
   Category Badges
   ========================================================================= */

.cat-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  font-family: var(--font-mono);
}

.cat-HC { background: #7c1d1d; }
.cat-1 { background: #dc2626; }
.cat-2 { background: #ea580c; }
.cat-3 { background: #ca8a04; }
.cat-4 { background: #16a34a; }
.cat-DH { background: #7c1d1d; }
.cat-D4 { background: #dc2626; }
.cat-D3 { background: #ea580c; }
.cat-D2 { background: #ca8a04; }
.cat-D1 { background: #16a34a; }
.cat-D0 { background: #6b7280; }

.osm-tag {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  color: #fff;
  background: #0ea5e9;
  vertical-align: middle;
}

.filter-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
}

.filter-checkbox input[type="checkbox"] {
  cursor: pointer;
  width: 15px;
  height: 15px;
  accent-color: var(--accent);
}

/* =========================================================================
   Road Surface Distribution
   ========================================================================= */

.rs-distribution {
  margin-top: 20px;
}

.rs-sub-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.rs-bar-chart {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rs-bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.rs-bar-label {
  width: 120px;
  font-size: 13px;
  color: var(--text-secondary);
  text-align: right;
  flex-shrink: 0;
}

.rs-bar-track {
  flex: 1;
  height: 22px;
  background: var(--bg-input);
  border-radius: 11px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.rs-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-dim));
  border-radius: 11px;
  transition: width 0.3s;
  box-shadow: 0 0 8px var(--accent-glow);
}

.rs-bar-fill-blue {
  background: linear-gradient(90deg, var(--accent-blue), #0077dd);
  box-shadow: 0 0 8px var(--accent-blue-glow);
}

.rs-bar-pct {
  width: 50px;
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
  font-family: var(--font-mono);
}

.slope-label {
  font-weight: 700;
}

.turn-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  color: white;
}

.btn-primary {
  padding: 9px 22px;
  background: var(--accent);
  color: var(--bg-base);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-body);
  transition: all 0.2s;
}

.btn-primary:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 16px var(--accent-glow);
}

/* =========================================================================
   Scrollbar
   ========================================================================= */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-base);
}

::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 5px;
  border: 2px solid var(--bg-base);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* =========================================================================
   Grade Legend
   ========================================================================= */

.grade-legend {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 12px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.grade-legend-title {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 700;
  margin-right: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.grade-legend-item {
  display: flex;
  align-items: center;
  gap: 3px;
}

.grade-legend-swatch {
  display: inline-block;
  width: 18px;
  height: 12px;
  border-radius: 2px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.grade-legend-text {
  font-size: 10px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* =========================================================================
   Recommend View
   ========================================================================= */

.recommend-view {
  max-width: 960px;
  margin: 0 auto;
}

.ai-search-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}

.ai-search-bar input {
  flex: 1;
  padding: 13px 18px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-family: var(--font-body);
  background: var(--bg-input);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.ai-search-bar input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.ai-search-bar input::placeholder {
  color: var(--text-dim);
}

.ai-search-bar button {
  padding: 0 28px;
  border: none;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  color: var(--bg-base);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  font-family: var(--font-body);
}

.ai-search-bar button:hover:not(:disabled) {
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-1px);
}

.ai-search-bar button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.example-queries {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 24px;
}

.example-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.example-chip {
  font-size: 12px;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  padding: 5px 14px;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.example-chip:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-glow);
}

.condition-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.condition-tag {
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(0, 229, 160, 0.2);
  padding: 4px 12px;
  border-radius: 14px;
  font-weight: 600;
}

.recommend-results {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.result-summary {
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--accent-glow);
  border: 1px solid rgba(0, 229, 160, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}

.recommend-card {
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.25s;
}

.recommend-card:hover {
  box-shadow: var(--shadow-md), 0 0 20px var(--accent-glow);
  transform: translateY(-2px);
  border-color: var(--border-default);
}

.recommend-card .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.recommend-card .card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

.recommend-card .card-score {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
  font-family: var(--font-mono);
}

.recommend-card .card-info {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}

.card-info-meta {
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-mono);
}

.recommend-card .card-reasons {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.reason-tag {
  font-size: 11px;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 3px 10px;
  border-radius: 10px;
  font-weight: 600;
}

/* Detail page recommend section */
.recommend-card-section {
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-subtle);
}

.recommend-card-section .section-title {
  margin-bottom: 16px;
}

.recommend-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.recommend-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.recommend-item:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
  transform: translateY(-1px);
  box-shadow: 0 0 12px var(--accent-glow);
}

.recommend-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.recommend-item-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.recommend-item-similarity {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
  font-family: var(--font-mono);
}

.recommend-item-info {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.recommend-item-meta {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.recommend-item-reasons {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

/* =========================================================================
   Import View
   ========================================================================= */

.import-view {
  max-width: 1200px;
  margin: 0 auto;
}

.stat-card-sub {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.stat-value-ok { color: #22c55e; }
.stat-value-info { color: var(--accent-blue); }
.stat-value-warn { color: var(--warning); }
.stat-value-error { color: var(--danger); }

.text-ok { color: #22c55e; }
.text-info { color: var(--accent-blue); }
.text-warn { color: var(--warning); }
.text-error { color: var(--danger); }

.progress-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.progress-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.progress-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.progress-text {
  font-size: 13px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.progress-bar {
  width: 100%;
  height: 12px;
  background: var(--bg-input);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.progress-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 0.3s ease;
}

.progress-fill-ok { background: linear-gradient(90deg, #22c55e, #16a34a); box-shadow: 0 0 8px rgba(34, 197, 94, 0.3); }
.progress-fill-info { background: linear-gradient(90deg, var(--accent-blue), #0077dd); }
.progress-fill-warn { background: linear-gradient(90deg, var(--warning), #d97706); }
.progress-fill-error { background: linear-gradient(90deg, var(--danger), #b91c1c); }

.batch-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.batch-status-pending { background: var(--bg-elevated); color: var(--text-muted); border: 1px solid var(--border-default); }
.batch-status-running { background: var(--accent-blue-glow); color: var(--accent-blue); border: 1px solid rgba(0, 153, 255, 0.3); }
.batch-status-completed { background: var(--success-bg); color: var(--success); border: 1px solid rgba(0, 229, 160, 0.3); }
.batch-status-failed { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(255, 71, 87, 0.3); }

.import-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input, .form-select {
  padding: 10px 14px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-body);
  background: var(--bg-input);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-select option {
  background: var(--bg-surface);
}

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
}

.form-checkbox-group {
  justify-content: center;
}

.form-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
}

.form-checkbox input[type="checkbox"] {
  cursor: pointer;
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.form-actions {
  display: flex;
  gap: 12px;
  padding-top: 8px;
}

.btn-lg {
  padding: 12px 28px;
  font-size: 15px;
}

.btn-secondary {
  padding: 9px 22px;
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-body);
  transition: all 0.2s;
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.btn-secondary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.task-status-box {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.task-info-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.task-label {
  font-size: 13px;
  color: var(--text-muted);
  min-width: 80px;
}

.task-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.task-result {
  margin-top: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-default);
}

.task-result-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.task-result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
}

.task-result-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  text-align: center;
  border: 1px solid var(--border-subtle);
}

.task-result-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.task-result-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.task-error {
  padding: 12px;
  background: var(--danger-bg);
  border: 1px solid rgba(255, 71, 87, 0.3);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: 13px;
}

.batch-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.batch-detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.batch-detail-item.batch-detail-full {
  grid-column: 1 / -1;
}

.batch-detail-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.batch-detail-value {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
  word-break: break-all;
}

.trigger-result {
  margin-top: 16px;
}

.success-box {
  padding: 12px 16px;
  background: var(--success-bg);
  border: 1px solid rgba(0, 229, 160, 0.3);
  border-radius: var(--radius-sm);
  color: var(--success);
  font-size: 14px;
  font-weight: 500;
}

.sport-filter-notice {
  padding: 8px 12px;
  background: var(--warning-bg);
  border: 1px solid rgba(255, 165, 2, 0.3);
  border-radius: var(--radius-sm);
  color: var(--warning);
  font-size: 13px;
  margin-top: 6px;
}

/* =========================================================================
   AI Description Section
   ========================================================================= */

.ai-description-section {
  margin: 12px 0 16px;
  padding: 18px;
  background: linear-gradient(135deg, var(--bg-surface), var(--bg-elevated));
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}

.ai-description-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-blue));
}

.ai-desc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.ai-desc-title {
  margin: 0;
  font-size: 16px;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.5px;
}

.ai-desc-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ai-desc-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ai-field-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.ai-field-value {
  margin: 0;
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.6;
}

.ai-title-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-display);
}

.ai-detail-text {
  white-space: pre-wrap;
}

.ai-error {
  padding: 8px 12px;
  background: var(--danger-bg);
  border: 1px solid rgba(255, 71, 87, 0.3);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: 13px;
  margin-bottom: 8px;
}

.ai-prompt-editor {
  margin-top: 12px;
  border-top: 1px solid var(--border-default);
  padding-top: 10px;
}

.btn-link {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 13px;
  text-decoration: underline;
  padding: 0;
}

.prompt-editor-body {
  margin-top: 8px;
}

.prompt-textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font-mono);
  background: var(--bg-input);
  color: var(--text-primary);
  resize: vertical;
  box-sizing: border-box;
  outline: none;
}

.prompt-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.prompt-editor-actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

/* =========================================================================
   Turns Stats Panel
   ========================================================================= */

.turns-stats-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

@media (min-width: 640px) {
  .turns-stats-panel {
    grid-template-columns: repeat(6, 1fr);
  }
}

.stats-panel-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 8px;
  text-align: center;
  transition: all 0.2s;
}

.stats-panel-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-default);
  box-shadow: var(--shadow-sm);
}

.stats-card-num {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  font-family: var(--font-mono);
}

.stats-card-lbl {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.text-bend { color: #60a5fa; }
.text-sharp { color: #fbbf24; }
.text-hairpin { color: #f87171; }
.text-danger { color: var(--danger); font-weight: 700; }

.dir-badge {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 500;
}

.dir-left { background: var(--accent-blue-glow); color: var(--accent-blue); }
.dir-right { background: rgba(244, 114, 182, 0.15); color: #f472b6; }

.slope-status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
}

.slope-uphill { background: var(--success-bg); color: var(--success); }
.slope-downhill { background: var(--danger-bg); color: var(--danger); }
.slope-flat { background: var(--bg-elevated); color: var(--text-muted); }

.s-bend-badge {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid rgba(255, 165, 2, 0.3);
}

.s-bend-badge.continuous {
  background: rgba(168, 85, 247, 0.15);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

/* =========================================================================
   Map Popup
   ========================================================================= */

.map-popup-detail {
  padding: 4px;
  font-family: var(--font-body);
}

.popup-title {
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 8px 0;
  color: #0f172a;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 4px;
}

.popup-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  font-size: 12px;
}

.popup-item {
  display: flex;
  flex-direction: column;
}

.popup-item.full {
  grid-column: span 2;
  border-top: 1px dashed #e2e8f0;
  padding-top: 6px;
  margin-top: 4px;
}

.popup-item .lbl {
  color: #64748b;
  font-size: 10px;
  margin-bottom: 2px;
}

.popup-item .val {
  color: #1e293b;
  font-weight: 500;
}

.popup-item .val.bold {
  font-weight: 700;
}

.popup-item .val.red {
  color: #be123c;
}

/* =========================================================================
   Leaflet Dark Overrides
   ========================================================================= */

.leaflet-container {
  background: #0d1117;
}

.leaflet-tile {
  filter: brightness(0.7) invert(1) contrast(0.9) hue-rotate(180deg) saturate(0.8) brightness(0.9);
}

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

.leaflet-control-zoom a:hover {
  background: var(--bg-hover) !important;
  color: var(--accent) !important;
}

.leaflet-control-attribution {
  background: rgba(10, 14, 20, 0.8) !important;
  color: var(--text-muted) !important;
}

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

.leaflet-popup-content-wrapper {
  background: #ffffff;
  color: #1e293b;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.leaflet-popup-tip {
  background: #ffffff;
}

/* Leaflet Layer Panel */
.leaflet-layer-panel {
  background: rgba(19, 25, 34, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-default);
  min-width: 160px;
  max-width: 220px;
  font-size: 13px;
  font-family: var(--font-body);
  overflow: hidden;
}

.leaflet-layer-panel .layer-panel-header {
  padding: 8px 12px;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--text-primary);
  cursor: pointer;
  border-bottom: 1px solid var(--border-subtle);
  user-select: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  letter-spacing: 0.5px;
}

.leaflet-layer-panel .layer-panel-header::after {
  content: '▼';
  font-size: 9px;
  color: var(--text-muted);
  transition: transform 0.2s;
}

.leaflet-layer-panel.collapsed .layer-panel-header::after {
  transform: rotate(-90deg);
}

.leaflet-layer-panel.collapsed .layer-panel-body {
  display: none;
}

.leaflet-layer-panel .layer-panel-body {
  padding: 6px 8px;
}

.leaflet-layer-panel .layer-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 4px;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.15s;
}

.leaflet-layer-panel .layer-item:hover {
  background: var(--bg-hover);
}

.leaflet-layer-panel .layer-item input[type="checkbox"] {
  margin: 0;
  cursor: pointer;
  accent-color: var(--accent);
}

.leaflet-layer-panel .layer-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.leaflet-layer-panel .layer-group-item {
  margin: 2px 0;
}

.leaflet-layer-panel .layer-sub-items {
  padding-left: 18px;
}

.leaflet-layer-panel .layer-item.sub {
  font-size: 12px;
  color: var(--text-secondary);
}

/* =========================================================================
   Responsive
   ========================================================================= */

/* Breakpoint: Tablet landscape & smaller */
@media (max-width: 1024px) {
  .app-main {
    padding: 20px;
  }
  .charts-grid {
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  }
  .cards-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
  .map-detail-section {
    flex-direction: column;
  }
  .map-detail-right {
    max-height: none;
    min-width: 0;
  }
  .map-detail-right .table-wrapper {
    max-height: none;
  }
  .recommend-list {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}

/* Breakpoint: Tablet portrait & mobile */
@media (max-width: 768px) {
  .header-content {
    padding: 10px 14px;
    gap: 12px;
    flex-wrap: wrap;
  }
  .logo-mark {
    width: 30px;
    height: 30px;
  }
  .logo-mark svg {
    width: 22px;
    height: 22px;
  }
  .logo-text {
    font-size: 18px;
    letter-spacing: 0.5px;
  }
  .logo-accent {
    font-size: 12px;
    letter-spacing: 1px;
  }
  .header-subtitle {
    display: none;
  }
  .header-nav {
    margin-left: 0;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 2px;
  }
  .header-nav::-webkit-scrollbar {
    display: none;
  }
  .nav-link {
    padding: 6px 12px;
    font-size: 12px;
    flex-shrink: 0;
  }
  .nav-link.active::after {
    width: 70%;
  }

  .app-main {
    padding: 14px;
  }

  .tab-bar {
    margin-bottom: 16px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .tab-bar::-webkit-scrollbar {
    display: none;
  }
  .tab-btn {
    padding: 8px 16px;
    font-size: 13px;
    flex-shrink: 0;
    white-space: nowrap;
  }

  .charts-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .chart-container {
    height: 280px;
  }
  .chart-container-large {
    height: 320px;
  }
  .chart-container-medium {
    height: 300px;
  }
  .chart-container-elevation {
    height: 220px;
  }
  .chart-card {
    padding: 14px;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .filter-select, .filter-input {
    width: 100%;
    font-size: 14px;
    padding: 10px 12px;
  }
  .filter-checkbox {
    font-size: 14px;
  }
  .result-count {
    font-size: 11px;
    text-align: right;
  }

  .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    position: relative;
  }
  .data-table {
    min-width: 540px;
  }
  .data-table th,
  .data-table td {
    padding: 9px 10px;
    font-size: 12px;
  }

  .cards-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .route-card {
    padding: 14px;
  }
  .card-stats {
    grid-template-columns: 1fr 1fr;
  }

  .detail-title {
    font-size: 20px;
    letter-spacing: 0;
  }
  .detail-header {
    margin-bottom: 18px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .stat-card {
    padding: 12px 10px;
  }
  .stat-card-value {
    font-size: 17px;
  }
  .stat-card-label {
    font-size: 10px;
  }

  .section-title {
    font-size: 17px;
    margin-top: 22px;
    margin-bottom: 12px;
  }
  .section {
    margin-bottom: 22px;
  }

  .map-container {
    height: 340px;
    border-radius: var(--radius-sm);
  }

  .table-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    margin-bottom: 12px;
  }
  .table-tabs::-webkit-scrollbar {
    display: none;
  }
  .tab-btn-sm {
    flex-shrink: 0;
    white-space: nowrap;
    padding: 6px 12px;
    font-size: 11px;
  }

  .ai-search-bar {
    flex-direction: column;
    gap: 8px;
  }
  .ai-search-bar input {
    padding: 11px 14px;
    font-size: 14px;
  }
  .ai-search-bar button {
    padding: 11px 20px;
    font-size: 13px;
  }
  .example-queries {
    gap: 6px;
  }
  .example-chip {
    font-size: 11px;
    padding: 4px 10px;
  }
  .recommend-list {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .recommend-card-section {
    padding: 16px;
  }
  .recommend-card {
    padding: 14px;
  }
  .recommend-card .card-info {
    gap: 8px;
    font-size: 12px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .form-input, .form-select {
    font-size: 14px;
    padding: 10px 12px;
  }
  .form-actions {
    flex-direction: column;
    gap: 8px;
  }
  .form-actions button {
    width: 100%;
  }
  .btn-primary, .btn-secondary, .btn-lg {
    width: 100%;
  }

  .batch-detail-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .task-result-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .task-result-item {
    padding: 10px 8px;
  }
  .task-result-value {
    font-size: 15px;
  }

  .road-surface-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .rs-bar-label {
    width: 90px;
    font-size: 12px;
  }

  .ai-description-section {
    padding: 14px;
  }
  .ai-title-text {
    font-size: 17px;
  }
  .ai-field-value {
    font-size: 13px;
  }

  .turns-stats-panel {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .stats-panel-card {
    padding: 10px 6px;
  }
  .stats-card-num {
    font-size: 18px;
  }

  .footer-content {
    flex-direction: column;
    gap: 4px;
    font-size: 11px;
  }
  .footer-dot {
    display: none;
  }

  .grade-legend {
    padding: 8px 10px;
    gap: 4px;
  }
  .grade-legend-text {
    font-size: 9px;
  }
  .grade-legend-swatch {
    width: 14px;
    height: 10px;
  }

  .pagination {
    gap: 4px;
    margin-top: 18px;
  }
  .pagination button {
    padding: 6px 10px;
    font-size: 12px;
  }
  .page-info {
    width: 100%;
    text-align: center;
    margin-left: 0;
    margin-top: 6px;
  }

  .leaflet-layer-panel {
    min-width: 140px;
    max-width: 200px;
    font-size: 12px;
  }
  .leaflet-layer-panel .layer-panel-header {
    padding: 6px 10px;
  }
  .leaflet-layer-panel .layer-panel-body {
    padding: 4px 6px;
  }
  .leaflet-control-zoom a {
    width: 28px !important;
    height: 28px !important;
    line-height: 28px !important;
    font-size: 16px !important;
  }

  .recommend-view,
  .import-view {
    max-width: 100%;
  }
}

/* Breakpoint: Small mobile / large phone */
@media (max-width: 640px) {
  .header-content {
    padding: 8px 12px;
    gap: 10px;
  }
  .logo-mark {
    width: 28px;
    height: 28px;
  }
  .logo-mark svg {
    width: 20px;
    height: 20px;
  }
  .logo-text {
    font-size: 16px;
  }
  .logo-accent {
    font-size: 11px;
    letter-spacing: 0.5px;
  }

  .app-main {
    padding: 12px;
  }

  .charts-grid {
    gap: 10px;
  }
  .chart-card {
    padding: 12px;
  }
  .chart-container {
    height: 240px;
  }
  .chart-container-large {
    height: 280px;
  }
  .chart-container-elevation {
    height: 200px;
  }

  .detail-title {
    font-size: 18px;
  }
  .detail-badges {
    gap: 6px;
  }
  .badge, .meta-badge, .score-badge {
    font-size: 11px;
    padding: 2px 10px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .stat-card {
    padding: 10px 8px;
  }
  .stat-card-value {
    font-size: 15px;
  }

  .section-title {
    font-size: 16px;
    margin-top: 18px;
    margin-bottom: 10px;
  }

  .map-container {
    height: 280px;
  }

  .cards-grid {
    gap: 10px;
  }
  .route-card {
    padding: 12px;
  }
  .card-title {
    font-size: 14px;
  }
  .card-stats {
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }

  .data-table {
    min-width: 480px;
  }
  .data-table th,
  .data-table td {
    padding: 8px 8px;
    font-size: 11px;
  }

  .turns-stats-panel {
    grid-template-columns: repeat(2, 1fr);
  }

  .road-surface-grid {
    grid-template-columns: 1fr;
  }

  .task-result-grid {
    grid-template-columns: 1fr;
  }

  .rs-bar-label {
    width: 80px;
    font-size: 11px;
  }
  .rs-bar-track {
    height: 18px;
  }

  .recommend-card .card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .recommend-card .card-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .leaflet-layer-panel {
    min-width: 120px;
    max-width: 170px;
  }
  .leaflet-control-zoom {
    transform: scale(0.9);
    transform-origin: bottom right;
  }
}

/* Breakpoint: Very small phone */
@media (max-width: 480px) {
  .header-content {
    padding: 6px 10px;
    gap: 8px;
  }
  .logo-mark {
    width: 26px;
    height: 26px;
  }
  .logo-mark svg {
    width: 18px;
    height: 18px;
  }
  .logo-text {
    font-size: 15px;
  }
  .logo-accent {
    display: none;
  }

  .app-main {
    padding: 10px;
  }

  .app-footer {
    padding: 14px 10px;
    font-size: 11px;
  }

  .detail-title {
    font-size: 16px;
  }
  .back-btn {
    padding: 6px 12px;
    font-size: 12px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .stat-card {
    padding: 10px;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .stat-card-label {
    margin-bottom: 0;
  }
  .stat-card-value {
    font-size: 15px;
  }

  .chart-container {
    height: 220px;
  }
  .chart-container-large {
    height: 260px;
  }

  .map-container {
    height: 240px;
  }

  .filter-select, .filter-input {
    font-size: 13px;
    padding: 9px 10px;
  }

  .data-table {
    min-width: 420px;
  }

  .card-stats {
    grid-template-columns: 1fr;
  }

  .ai-search-bar input {
    font-size: 13px;
    padding: 10px 12px;
  }
  .ai-search-bar button {
    padding: 10px 16px;
    font-size: 12px;
  }
}

/* Touch-friendly hover suppression on coarse pointers */
@media (hover: none) and (pointer: coarse) {
  .route-card:hover,
  .recommend-card:hover,
  .recommend-item:hover,
  .chart-card:hover,
  .stats-panel-card:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
    border-color: var(--border-subtle);
  }
  .nav-link:hover,
  .tab-btn:hover,
  .tab-btn-sm:hover,
  .example-chip:hover,
  .btn-secondary:hover:not(:disabled),
  .btn-primary:hover,
  .back-btn:hover,
  .feature-row:hover {
    background: var(--bg-surface);
    color: var(--text-secondary);
    border-color: var(--border-default);
    transform: none;
    box-shadow: none;
  }
  .tab-btn-sm.active,
  .page-btn.active {
    box-shadow: none;
  }
}

/* ===== OSM 地理信息增强样式 ===== */

/* 折叠区块 */
.osm-section { margin-bottom: 4px; }
.osm-section-header {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; cursor: pointer; user-select: none;
  border-radius: 6px; transition: background 0.15s;
}
.osm-section-header:hover { background: rgba(255,255,255,0.04); }
.osm-section-icon { font-size: 16px; }
.osm-section-title { font-size: 13px; font-weight: 600; color: var(--text-primary); flex: 1; }
.osm-section-arrow { font-size: 10px; color: var(--text-muted); transition: transform 0.2s; }
.osm-badge {
  font-size: 10px; background: rgba(59, 130, 246, 0.15); color: #60a5fa;
  padding: 1px 6px; border-radius: 10px; font-weight: 600;
}
.osm-section-body { padding: 4px 0 8px; }

/* 子标题 */
.pro-subsection-title {
  font-size: 11px; font-weight: 600; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.05em;
  margin: 12px 0 6px; padding-bottom: 4px;
  border-bottom: 1px solid var(--border-default);
}

/* 空状态 */
.pro-empty-state {
  padding: 16px; color: var(--text-muted); text-align: center; font-size: 12px;
}

/* 纯CSS横向条形图 */
.pro-css-bar-chart { display: flex; flex-direction: column; gap: 3px; margin-bottom: 8px; }
.pro-css-bar-row {
  display: flex; align-items: center; gap: 8px; font-size: 11px;
}
.pro-css-bar-label {
  width: 80px; min-width: 80px; text-align: right; color: var(--text-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.pro-css-bar-track {
  flex: 1; height: 14px; background: rgba(255,255,255,0.06);
  border-radius: 3px; overflow: hidden; position: relative;
}
.pro-css-bar-fill {
  height: 100%; border-radius: 3px; transition: width 0.3s;
  background: var(--accent);
}
.pro-css-bar-fill-blue { background: #3b82f6; }
.pro-css-bar-fill-orange { background: #f97316; }
.pro-css-bar-pct { width: 70px; min-width: 70px; color: var(--text-muted); font-family: var(--font-mono); font-size: 10px; }

/* POI 卡片网格 */
.poi-type-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 6px;
}
.poi-type-card {
  background: rgba(26, 34, 48, 0.6); border: 1px solid var(--border-default);
  border-radius: 6px; padding: 6px 8px;
}
.poi-type-header {
  display: flex; align-items: center; gap: 6px; margin-bottom: 4px;
}
.poi-icon { font-size: 14px; }
.poi-type-name { font-size: 11px; font-weight: 600; color: var(--text-primary); flex: 1; }
.poi-count {
  font-size: 10px; font-family: var(--font-mono); font-weight: 700;
  background: rgba(59, 130, 246, 0.15); color: #60a5fa;
  padding: 0px 5px; border-radius: 8px;
}
.poi-items-list { display: flex; flex-direction: column; gap: 2px; }
.poi-item {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 10px; color: var(--text-secondary);
}
.poi-item-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.poi-item-dist { color: var(--text-muted); font-family: var(--font-mono); margin-left: 6px; }
.poi-more { font-size: 9px; color: var(--text-muted); font-style: italic; padding-top: 2px; }

/* 自行车路线网络 */
.cycle-route-list { display: flex; flex-direction: column; gap: 4px; }
.cycle-route-item {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 8px; background: rgba(26, 34, 48, 0.4);
  border-radius: 4px; font-size: 11px;
}
.cycle-network-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.cycle-route-name { flex: 1; color: var(--text-primary); }
.cycle-network-label { font-size: 10px; font-weight: 600; }
.cycle-route-ref { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }

/* 路口类型标签 */
.intersection-type-badge {
  display: inline-block; font-size: 10px; padding: 1px 6px; border-radius: 3px; font-weight: 600;
}
.intersection-type-badge.signal { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.intersection-type-badge.crossing { background: rgba(251, 191, 36, 0.2); color: #fbbf24; }

/* danger class for summary card */
.card-value.danger { color: var(--danger); }

/* 移动端适配 */
@media (max-width: 768px) {
  .poi-type-grid { grid-template-columns: 1fr 1fr; }
  .pro-css-bar-label { width: 60px; min-width: 60px; font-size: 10px; }
  .pro-css-bar-pct { width: 55px; min-width: 55px; font-size: 9px; }
}

/* =========================================================================
   Upload View
   ========================================================================= */

.upload-view {
  max-width: 1200px;
  margin: 0 auto;
}

.upload-stage-upload {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 20px;
}

.upload-stage-header {
  text-align: center;
  margin-bottom: 32px;
}

.upload-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.upload-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
}

.upload-zone {
  width: 100%;
  max-width: 640px;
  min-height: 280px;
  border: 2px dashed var(--border-default);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  padding: 40px;
}

.upload-zone:hover {
  border-color: var(--accent);
  background: var(--bg-elevated);
  box-shadow: 0 0 24px var(--accent-glow);
}

.upload-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-glow);
  box-shadow: 0 0 32px var(--accent-glow);
  transform: scale(1.01);
}

.upload-zone.uploading {
  cursor: default;
  border-style: solid;
  border-color: var(--border-strong);
}

.upload-zone-icon {
  color: var(--text-muted);
  margin-bottom: 16px;
  transition: color 0.2s;
}

.upload-zone:hover .upload-zone-icon {
  color: var(--accent);
}

.upload-zone-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.upload-zone-hint {
  font-size: 13px;
  color: var(--text-muted);
}

.upload-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.upload-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-default);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.upload-spinner.small {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.upload-loading-text {
  font-size: 14px;
  color: var(--text-secondary);
}

.upload-error {
  margin-top: 16px;
  padding: 12px 16px;
  background: var(--danger-bg);
  border: 1px solid rgba(255, 71, 87, 0.3);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: 13px;
  max-width: 640px;
  width: 100%;
  text-align: center;
}

.upload-error.inline {
  margin-top: 0;
  margin-right: 12px;
  padding: 8px 12px;
  font-size: 12px;
  width: auto;
  white-space: nowrap;
}

/* Progress */
.upload-progress-section {
  margin-bottom: 20px;
}

.upload-progress {
  width: 100%;
  height: 8px;
  background: var(--bg-input);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.upload-progress-bar {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent-blue), #0077dd);
  transition: width 0.4s ease;
  box-shadow: 0 0 8px var(--accent-blue-glow);
}

.upload-progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
}

.upload-stage-text {
  font-size: 13px;
  color: var(--text-secondary);
}

.upload-progress-pct {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-blue);
  font-family: var(--font-mono);
}

/* Layout: map + tabs */
.upload-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  min-height: 480px;
}

.upload-map-wrap {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  min-height: 480px;
}

.upload-map {
  width: 100%;
  height: 100%;
  min-height: 480px;
}

.upload-map .leaflet-container {
  width: 100%;
  height: 100%;
  background: var(--bg-base);
}

.upload-map-placeholder {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(10, 14, 20, 0.7);
  color: var(--text-muted);
  font-size: 13px;
  z-index: 400;
}

.upload-tabs {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.upload-tabnav {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  padding: 8px;
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-elevated);
}

.upload-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border: 1px solid var(--border-default);
  background: rgba(26, 34, 48, 0.6);
  color: var(--text-muted);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-body);
  transition: all 0.2s;
  white-space: nowrap;
}

.upload-tab-btn:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
  border-color: var(--border-strong);
}

.upload-tab-btn.active {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--accent);
}

.tab-status-icon {
  font-size: 10px;
  line-height: 1;
}

.tab-status-icon.tab-icon-ok {
  color: #22c55e;
}

.tab-status-icon.tab-icon-error {
  color: var(--danger);
}

.tab-status-icon.tab-icon-loading {
  color: var(--text-muted);
  display: inline-block;
  animation: spin 1.2s linear infinite;
}

.upload-tab-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  max-height: 560px;
}

.upload-tab-content::-webkit-scrollbar {
  width: 6px;
}

.upload-tab-content::-webkit-scrollbar-track {
  background: transparent;
}

.upload-tab-content::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}

/* Action bar */
.upload-actions {
  position: sticky;
  bottom: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
  padding: 16px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.3);
}

.upload-confirm-wrap {
  display: flex;
  align-items: center;
}

.confirm-btn {
  padding: 10px 28px;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-body);
  transition: all 0.2s;
  white-space: nowrap;
}

.confirm-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, #16a34a, #15803d);
  box-shadow: 0 0 16px rgba(34, 197, 94, 0.3);
  transform: translateY(-1px);
}

.confirm-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.discard-btn {
  padding: 10px 24px;
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-body);
  transition: all 0.2s;
}

.discard-btn:hover:not(:disabled) {
  border-color: var(--danger);
  color: var(--danger);
  background: var(--danger-bg);
}

.discard-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Responsive */
@media (max-width: 768px) {
  .upload-view {
    max-width: 100%;
  }

  .upload-stage-upload {
    padding: 20px 12px;
  }

  .upload-title {
    font-size: 22px;
  }

  .upload-zone {
    min-height: 220px;
    padding: 24px 16px;
  }

  .upload-layout {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .upload-map-wrap {
    min-height: 300px;
  }

  .upload-map {
    min-height: 300px;
  }

  .upload-tabnav {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .upload-tabnav::-webkit-scrollbar {
    display: none;
  }

  .upload-tab-btn {
    flex-shrink: 0;
    font-size: 11px;
    padding: 5px 10px;
  }

  .upload-tab-content {
    max-height: none;
    padding: 12px;
  }

  .upload-actions {
    flex-direction: column;
    gap: 10px;
    padding: 12px 14px;
  }

  .confirm-btn, .discard-btn {
    width: 100%;
  }

  .upload-confirm-wrap {
    width: 100%;
    flex-direction: column;
    gap: 8px;
  }

  .upload-error.inline {
    margin-right: 0;
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .upload-zone {
    min-height: 180px;
    padding: 20px 12px;
  }

  .upload-zone-icon svg {
    width: 40px;
    height: 40px;
  }

  .upload-zone-title {
    font-size: 14px;
  }

  .upload-map-wrap, .upload-map {
    min-height: 240px;
  }
}


/* =========================================================================
   Hero Section - AI 标题与简介
   ========================================================================= */
.hero-section {
  position: relative;
  padding: 48px 24px 36px;
  margin-bottom: 8px;
  background: linear-gradient(135deg, rgba(0, 200, 255, 0.06) 0%, rgba(0, 255, 170, 0.03) 50%, transparent 100%);
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 200, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 200, 255, 0.1);
  border: 1px solid rgba(0, 200, 255, 0.25);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-blue);
  letter-spacing: 0.5px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-blue);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-blue);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
  font-family: 'Saira Condensed', 'Manrope', sans-serif;
  font-size: 44px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
  margin: 0 0 16px;
  line-height: 1.15;
}

.hero-title-accent {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-dim));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 720px;
  margin: 0 auto 28px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero-stat-value {
  font-family: 'Saira Condensed', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.hero-stat-value small {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 2px;
}

.hero-stat-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

@media (max-width: 768px) {
  .hero-section {
    padding: 32px 16px 24px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-subtitle {
    font-size: 14px;
  }
  .hero-stats {
    gap: 24px;
  }
  .hero-stat-value {
    font-size: 22px;
  }
  .hide-mobile {
    display: none;
  }
}

/* =========================================================================
   Detail View Light Hero - 亮色详情头部
   ========================================================================= */
.pro-hero {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: linear-gradient(180deg, rgba(255,255,255,0.97) 0%, rgba(255,255,255,0.92) 80%, rgba(255,255,255,0) 100%);
  color: #1a2230;
  padding: 16px 24px 48px;
  pointer-events: none;
}

.pro-hero-inner {
  max-width: 680px;
  pointer-events: auto;
}

.pro-hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.back-btn-light {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  background: rgba(255,255,255,0.9);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 8px;
  color: #3a4759;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: all 0.15s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.back-btn-light:hover { background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }

.pro-hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.badge-light {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  color: #475569;
  backdrop-filter: blur(8px);
  white-space: nowrap;
}

.badge-light.badge-diff {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff;
  border-color: transparent;
}

.badge-light.badge-loop {
  background: rgba(34, 197, 94, 0.12);
  color: #16a34a;
  border-color: rgba(34, 197, 94, 0.25);
}

.pro-hero-title {
  font-family: 'Saira Condensed', 'Manrope', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 8px;
  line-height: 1.2;
  letter-spacing: 0.3px;
}

.pro-hero-title .ai-title {
  background: linear-gradient(135deg, #0099ff, #00b380);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pro-hero-short {
  font-size: 14px;
  color: #475569;
  line-height: 1.6;
  margin: 0 0 14px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.ai-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 18px;
  background: linear-gradient(135deg, #0099ff, #00b380);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  border-radius: 4px;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

.pro-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 14px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.7);
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.05);
  backdrop-filter: blur(8px);
}

.pro-hero-stats .hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pro-hero-stats .hero-stat-value {
  font-family: 'Saira Condensed', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1;
}

.pro-hero-stats .hero-stat-label {
  font-size: 11px;
  color: #64748b;
}

.pro-hero-detail {
  background: linear-gradient(135deg, rgba(0,153,255,0.06), rgba(0,179,128,0.04));
  border: 1px solid rgba(0,153,255,0.15);
  border-radius: 12px;
  padding: 12px 14px;
}

.detail-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  color: #0099ff;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.detail-text {
  font-size: 13px;
  color: #334155;
  line-height: 1.7;
  margin: 0 0 6px;
}

.ai-meta {
  font-size: 11px;
  color: #94a3b8;
}

.pro-hero-gen {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-gen-ai {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: linear-gradient(135deg, #0099ff, #00b380);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.15s;
  box-shadow: 0 2px 8px rgba(0,153,255,0.25);
}
.btn-gen-ai:hover { opacity: 0.9; transform: translateY(-1px); }

.ai-loading { font-size: 13px; color: #64748b; }
.ai-error { font-size: 12px; color: #ef4444; }

/* 暗色面板文字可读性（左侧Tab面板） */
.pro-tabpanel {
  /* 保留暗色，让 hero 亮色浮在地图上方 */
}

@media (max-width: 768px) {
  .pro-hero {
    padding: 10px 12px 40px;
  }
  .pro-hero-inner {
    max-width: 100%;
  }
  .pro-hero-title {
    font-size: 20px;
  }
  .pro-hero-short {
    font-size: 12px;
  }
  .pro-hero-stats {
    gap: 10px;
    padding: 8px 10px;
  }
  .pro-hero-stats .hero-stat-value {
    font-size: 15px;
  }
  .detail-text {
    font-size: 12px;
  }
  .badge-light {
    font-size: 10px;
    padding: 2px 8px;
  }
}

/* =========================================================================
   Waterfall Detail Page (wf-*)
   ========================================================================= */
.wf-page {
  min-height: 100vh;
  background: #f5f7fb;
  color: #1e293b;
  font-family: 'Fira Sans', 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wf-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.wf-loading {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: #64748b;
  font-size: 15px;
}

.wf-error p { color: #ef4444; }

.wf-btn-primary {
  padding: 10px 20px;
  background: #1e40af;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.wf-btn-primary:hover { background: #1e3a8a; }

/* ---- Nav ---- */
.wf-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #e2e8f0;
}
.wf-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.wf-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  color: #334155;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.wf-back:hover { background: #e2e8f0; color: #1e40af; }
.wf-nav-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.wf-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  color: #475569;
}
.wf-badge-diff {
  background: #1e40af;
  color: #fff;
  border-color: transparent;
  font-weight: 700;
}
.wf-badge-diff.wf-diff-入门 { background: #10b981; }
.wf-badge-diff.wf-diff-进阶 { background: #3b82f6; }
.wf-badge-diff.wf-diff-挑战 { background: #f59e0b; }
.wf-badge-diff.wf-diff-困难 { background: #ef4444; }
.wf-badge-diff.wf-diff-极限 { background: #7c3aed; }

/* ---- Hero ---- */
.wf-hero {
  background: linear-gradient(135deg, #ffffff 0%, #f0f7ff 50%, #e6faf2 100%);
  padding: 48px 0 40px;
  border-bottom: 1px solid #e2e8f0;
  position: relative;
  overflow: hidden;
}
.wf-hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(30,64,175,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.wf-hero-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  align-items: start;
  position: relative;
}
.wf-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  color: #1e40af;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.wf-dot {
  width: 7px;
  height: 7px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(16,185,129,0.15);
  animation: wf-pulse 2s ease-in-out infinite;
}
@keyframes wf-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(16,185,129,0.15); }
  50% { box-shadow: 0 0 0 8px rgba(16,185,129,0.05); }
}
.wf-hero-title {
  font-family: 'Saira Condensed', 'Fira Sans', sans-serif;
  font-size: 44px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.12;
  letter-spacing: 0.5px;
  margin: 0 0 14px;
}
.wf-ai-gradient {
  background: linear-gradient(135deg, #1e40af 0%, #0891b2 60%, #059669 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.wf-hero-lead {
  font-size: 16px;
  color: #334155;
  line-height: 1.65;
  margin: 0 0 18px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.wf-hero-lead-muted { color: #64748b; }
.wf-ai-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 32px;
  height: 20px;
  background: linear-gradient(135deg, #1e40af, #059669);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  border-radius: 5px;
  letter-spacing: 0.5px;
  margin-top: 2px;
}
.wf-ai-desc {
  background: rgba(255,255,255,0.7);
  border: 1px solid #dbeafe;
  border-left: 3px solid #1e40af;
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 8px;
}
.wf-ai-desc-head {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  color: #1e40af;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.wf-ai-meta {
  margin-left: auto;
  font-weight: 400;
  color: #94a3b8;
  text-transform: none;
  letter-spacing: 0;
}
.wf-ai-desc-text {
  font-size: 13.5px;
  color: #334155;
  line-height: 1.75;
  margin: 0;
  white-space: pre-wrap;
}
.wf-ai-gen {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.wf-btn-ai {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  background: linear-gradient(135deg, #1e40af, #0891b2);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.15s;
  box-shadow: 0 4px 14px rgba(30,64,175,0.25);
}
.wf-btn-ai:hover { opacity: 0.9; transform: translateY(-1px); }
.wf-ai-loading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #64748b;
}
.wf-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid #e2e8f0;
  border-top-color: #1e40af;
  border-radius: 50%;
  animation: wf-spin 0.8s linear infinite;
}
@keyframes wf-spin { to { transform: rotate(360deg); } }
.wf-ai-error { font-size: 12px; color: #ef4444; }

/* Hero side stats */
.wf-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.wf-stat-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 14px 14px 12px;
  transition: all 0.15s;
}
.wf-stat-card:hover {
  border-color: #bfdbfe;
  box-shadow: 0 4px 12px rgba(30,64,175,0.08);
  transform: translateY(-1px);
}
.wf-stat-accent {
  background: linear-gradient(135deg, #1e40af, #1e3a8a);
  border-color: transparent;
  color: #fff;
}
.wf-stat-label {
  font-size: 11px;
  color: #64748b;
  font-weight: 600;
  letter-spacing: 0.3px;
  margin-bottom: 4px;
}
.wf-stat-accent .wf-stat-label { color: rgba(255,255,255,0.7); }
.wf-stat-value {
  font-family: 'Saira Condensed', 'Fira Sans', sans-serif;
  font-size: 26px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1;
}
.wf-stat-value small {
  font-size: 13px;
  font-weight: 500;
  color: #94a3b8;
  margin-left: 3px;
}
.wf-stat-accent .wf-stat-value { color: #fff; }
.wf-stat-accent .wf-stat-value small { color: rgba(255,255,255,0.7); }

/* ---- KPI row ---- */
.wf-kpi {
  padding: 24px 0;
  background: #fff;
  border-bottom: 1px solid #e2e8f0;
}
.wf-kpi-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.wf-kpi-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  transition: all 0.15s;
  cursor: default;
}
.wf-kpi-item:hover {
  background: #fff;
  border-color: #bfdbfe;
  box-shadow: 0 2px 8px rgba(30,64,175,0.06);
}
.wf-kpi-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  flex-shrink: 0;
}
.wf-kpi-blue .wf-kpi-icon { background: #dbeafe; color: #1e40af; }
.wf-kpi-amber .wf-kpi-icon { background: #fef3c7; color: #d97706; }
.wf-kpi-purple .wf-kpi-icon { background: #ede9fe; color: #7c3aed; }
.wf-kpi-teal .wf-kpi-icon { background: #ccfbf1; color: #0d9488; }
.wf-kpi-red .wf-kpi-icon { background: #fee2e2; color: #dc2626; }
.wf-kpi-cyan .wf-kpi-icon { background: #cffafe; color: #0891b2; }
.wf-kpi-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.wf-kpi-val {
  font-family: 'Saira Condensed', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1;
}
.wf-kpi-lbl {
  font-size: 11px;
  color: #64748b;
  font-weight: 500;
}

/* ---- Sections ---- */
.wf-section {
  padding: 40px 0;
}
.wf-section:nth-child(even) {
  background: #fff;
}
.wf-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.wf-section-title {
  font-family: 'Saira Condensed', 'Fira Sans', sans-serif;
  font-size: 26px;
  font-weight: 700;
  color: #0f172a;
  margin: 0;
  letter-spacing: 0.3px;
  position: relative;
  padding-left: 14px;
}
.wf-section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background: linear-gradient(180deg, #1e40af, #0891b2);
  border-radius: 2px;
}
.wf-section-sub {
  font-size: 13px;
  color: #64748b;
  margin: 0;
}

/* ---- Map ---- */
.wf-map-wrap {
  position: relative;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.wf-map {
  width: 100%;
  height: 520px;
}
.wf-map-warn {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 8px 14px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  border-radius: 8px;
  font-size: 13px;
  z-index: 500;
}

/* ---- Elevation chart ---- */
.wf-chart-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.wf-elevation-chart {
  width: 100%;
  height: 280px;
}
.wf-grade-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #f1f5f9;
}
.wf-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #64748b;
  font-weight: 500;
}
.wf-legend-color {
  width: 14px;
  height: 10px;
  border-radius: 2px;
}

/* ---- Footer ---- */
.wf-footer {
  padding: 32px 0;
  background: #0f172a;
  color: #94a3b8;
  text-align: center;
  font-size: 13px;
}

/* ---- Embedded detail-tab container ---- */
.wf-section .tab-panel-root,
.wf-section [class^="tab-"] {
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  box-shadow: none !important;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .wf-kpi-row { grid-template-columns: repeat(3, 1fr); }
  .wf-hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .wf-stat-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .wf-container { padding: 0 16px; }
  .wf-hero { padding: 28px 0 24px; }
  .wf-hero-title { font-size: 30px; }
  .wf-hero-lead { font-size: 14px; }
  .wf-stat-grid { grid-template-columns: 1fr 1fr; }
  .wf-kpi-row { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .wf-kpi-item { padding: 10px 12px; gap: 8px; }
  .wf-kpi-icon { width: 34px; height: 34px; }
  .wf-kpi-val { font-size: 17px; }
  .wf-section { padding: 28px 0; }
  .wf-section-title { font-size: 21px; }
  .wf-map { height: 360px; }
  .wf-elevation-chart { height: 220px; }
  .wf-nav-inner { padding: 10px 16px; flex-wrap: wrap; }
  .wf-nav-badges { justify-content: flex-end; }
}
@media (max-width: 480px) {
  .wf-kpi-row { grid-template-columns: 1fr 1fr; }
  .wf-badge { font-size: 10px; padding: 3px 8px; }
  .wf-stat-value { font-size: 22px; }
}

/* ---- Embedded detail-tab overrides (light background) ---- */
.wf-section .panel-header { display: none !important; }
.wf-section .panel-content {
  padding: 0 !important;
  background: transparent !important;
}
.wf-section .pro-summary-card,
.wf-section .metric-card,
.wf-section .summary-card {
  background: #fff !important;
  border: 1px solid #e2e8f0 !important;
  color: #1e293b !important;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}
.wf-section .pro-summary-card .card-label {
  color: #64748b !important;
}
.wf-section .pro-summary-card .card-value {
  color: #0f172a !important;
}
.wf-section .pro-summary-card .card-value.accent {
  color: #1e40af !important;
}
.wf-section .pro-summary-card .card-value.danger {
  color: #dc2626 !important;
}
.wf-section .pro-summary-card .card-value.warning {
  color: #d97706 !important;
}
.wf-section .chart-wrapper,
.wf-section .chart-card,
.wf-section .chart-container {
  background: #fff !important;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
}
.wf-section table {
  background: #fff;
  border-color: #e2e8f0;
  color: #334155;
}
.wf-section th {
  background: #f8fafc;
  color: #475569;
  border-color: #e2e8f0;
}
.wf-section td {
  border-color: #f1f5f9;
  color: #334155;
}
.wf-section tr:hover td { background: #f8fafc; }
.wf-section h4, .wf-section .sub-title {
  color: #0f172a !important;
  font-weight: 600;
}
.wf-section p, .wf-section .text-muted { color: #64748b !important; }

/* =========================================================================
   Horizontal Percent Bar Chart (参考: 四列水平条形图)
   ========================================================================= */
.hbar-chart {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 18px 20px;
  margin: 16px 0;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}
.wf-section .hbar-chart { margin: 16px 0; }
.hbar-title {
  font-size: 13px;
  font-weight: 700;
  color: #334155;
  margin: 0 0 14px;
  letter-spacing: 0.3px;
}
.hbar-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.hbar-row {
  display: grid;
  grid-template-columns: 76px 72px 96px 1fr;
  align-items: stretch;
  gap: 4px;
  min-height: 34px;
}
.hbar-block {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Saira Condensed', 'Fira Sans', sans-serif;
  font-size: 18px;
  font-weight: 700;
  border-radius: 4px;
}
.hbar-cat {
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 0.5px;
  font-family: 'Fira Sans', 'Manrope', sans-serif;
}
.hbar-pct {
}
.hbar-time {
}
.hbar-track {
  position: relative;
  background: #f1f5f9;
  border-radius: 0 4px 4px 0;
  overflow: hidden;
}
.hbar-fill {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  border-radius: 0 4px 4px 0;
  transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  min-width: 2px;
}
@media (max-width: 640px) {
  .hbar-row {
    grid-template-columns: 60px 52px 70px 1fr;
    min-height: 28px;
  }
  .hbar-cat { font-size: 11px; }
  .hbar-block { font-size: 14px; }
}

/* 数据表格：风险点高亮 */
.data-table td .risk-high { color: #dc2626; font-weight: 700; }
.data-table td .risk-mid { color: #f59e0b; font-weight: 600; }
.data-table th, .data-table td { text-align: center; }
.data-table td.col-title { text-align: left; }