:root {
  color-scheme: light;
  --ink: #1f2933;
  --muted: #667085;
  --subtle: #eef2f6;
  --line: #d8dee8;
  --paper: #fbfcfe;
  --panel: #ffffff;
  --water: #dceaf0;
  --land: #f4efe3;
  --land-edge: #cec3ac;
  --accent: #b23a48;
  --accent-2: #1f7a8c;
  --accent-3: #6f5d2e;
  --focus: #0b5cad;
  --shadow: 0 18px 55px rgba(31, 41, 51, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #eef2f5;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
}

button,
input {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
  align-items: start;
  min-height: 100vh;
}

.side-panel {
  display: grid;
  grid-template-rows: auto auto auto;
  position: sticky;
  top: 0;
  align-self: start;
  max-height: 100vh;
  border-right: 1px solid var(--line);
  background: var(--panel);
  overflow-y: auto;
}

.app-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  padding: 24px 24px 18px;
  border-bottom: 1px solid var(--line);
}

.kicker {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: 0;
}

.stat-grid {
  display: grid;
  gap: 8px;
  align-self: start;
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

.stat-grid strong {
  display: block;
  color: var(--ink);
  font-size: 21px;
  line-height: 1;
}

.controls {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  background: #f7f9fb;
}

.control-row {
  display: grid;
  grid-template-columns: 42px 42px minmax(0, 1fr);
  gap: 10px;
  align-items: stretch;
}

.icon-button {
  width: 42px;
  min-width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.icon-button:hover,
.timeline-item:hover {
  transform: translateY(-1px);
}

.icon-button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.search-box {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--muted);
  font-size: 13px;
}

.search-box input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 12px;
}

.filter-button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--muted);
  padding: 7px 10px;
  cursor: pointer;
  font-size: 13px;
}

.filter-button.active {
  border-color: var(--accent-2);
  color: var(--accent-2);
  background: #e8f4f6;
}

.event-detail {
  padding: 18px 24px 16px;
  background: var(--paper);
  overflow: auto;
  max-height: calc(100vh - 285px);
}

.detail-date {
  margin-bottom: 8px;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 700;
}

.event-detail h2 {
  margin-bottom: 10px;
  font-size: 19px;
  line-height: 1.3;
}

.event-detail p {
  color: #46515f;
  line-height: 1.65;
  margin-bottom: 14px;
}

.detail-meta {
  display: grid;
  gap: 10px;
  margin: 0;
}

.detail-meta div {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 10px;
}

.detail-meta dt {
  color: var(--muted);
  font-size: 13px;
}

.detail-meta dd {
  margin: 0;
  color: #344054;
  font-size: 13px;
  line-height: 1.5;
}

#detailPlaces {
  display: grid;
  gap: 6px;
}

.place-event-link {
  display: grid;
  gap: 3px;
  padding: 8px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  cursor: pointer;
}

.place-event-link + .place-event-link {
  margin-top: 7px;
}

.place-event-link.active {
  border-color: var(--accent);
  background: #fff6f7;
}

.place-event-link strong {
  color: var(--accent-3);
  font-size: 12px;
}

.place-event-link span {
  color: var(--ink);
  font-weight: 700;
}

.timeline-wrap {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 12px 18px 16px;
  border-top: 1px solid rgba(31, 41, 51, 0.12);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(12px);
}

.timeline {
  display: flex;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: max-content;
}

.timeline-item {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 10px;
  width: 310px;
  height: 96px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 11px;
  text-align: left;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.timeline-item.active {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(178, 58, 72, 0.13);
}

.timeline-year {
  color: var(--accent-3);
  font-weight: 800;
}

.timeline-title {
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.35;
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.timeline-summary {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.map-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-width: 0;
  min-height: 100vh;
  background: #d9e5eb;
}

.map-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 58px;
  padding: 12px 20px;
  border-bottom: 1px solid rgba(31, 41, 51, 0.12);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(12px);
}

.map-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.zoom-controls {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.map-tool-button {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  cursor: pointer;
  font-weight: 800;
}

.zoom-controls .map-tool-button {
  border: 0;
  border-radius: 0;
}

.zoom-controls .map-tool-button + .map-tool-button {
  border-left: 1px solid var(--line);
}

.map-tool-button.text {
  padding: 0 11px;
  font-size: 13px;
  font-weight: 700;
}

.map-tool-button:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #475467;
  font-size: 13px;
}

.legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.map-note {
  display: inline-flex;
  gap: 5px;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

.map-note span:first-child {
  color: var(--ink);
  font-weight: 800;
}

.map-stage {
  min-height: 0;
  padding: 14px 18px;
  overflow: auto;
  overscroll-behavior-y: auto;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
}

.map-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  height: auto;
  min-height: 0;
  touch-action: pan-y;
}

.map-svg {
  display: block;
  width: 100%;
  height: auto;
  min-height: 390px;
  aspect-ratio: 1000 / 760;
  border: 1px solid rgba(31, 41, 51, 0.12);
  border-radius: 8px;
  background: var(--water);
  box-shadow: var(--shadow);
  cursor: grab;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

.main-map-svg {
  min-width: 0;
}

.taiwan-map-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 0;
  touch-action: pan-y;
}

.taiwan-map-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 2px 8px;
  color: var(--muted);
  font-size: 13px;
  touch-action: pan-y;
}

.taiwan-map-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.taiwan-map-header h2 {
  margin: 0;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.2;
}

.taiwan-map-header strong {
  color: var(--ink);
}

.taiwan-map-svg {
  min-height: 390px;
  box-shadow: 0 12px 36px rgba(31, 41, 51, 0.12);
}

.map-svg.dragging {
  cursor: grabbing;
}

.water {
  fill: var(--water);
}

.land {
  fill: var(--land);
  stroke: var(--land-edge);
  stroke-width: 1.2;
}

.region-label {
  fill: rgba(31, 41, 51, 0.5);
  font-size: 15px;
  font-weight: 700;
}

.grid-line {
  stroke: rgba(31, 41, 51, 0.12);
  stroke-width: 1;
}

.route-line {
  fill: none;
  stroke: rgba(178, 58, 72, 0.58);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.route-line.active {
  stroke: var(--accent);
  stroke-width: 6;
}

.marker-group {
  cursor: pointer;
}

.marker-halo {
  fill: url(#cityGlow);
}

.marker-leader {
  stroke: rgba(31, 41, 51, 0.38);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.marker-dot {
  stroke: #ffffff;
  stroke-width: 1.8;
  vector-effect: non-scaling-stroke;
}

.marker-group.active .marker-dot {
  stroke: #111827;
  stroke-width: 2.4;
}

.marker-label {
  paint-order: stroke;
  stroke: rgba(255, 255, 255, 0.9);
  stroke-width: 3px;
  fill: #24313d;
  font-size: 11px;
  font-weight: 800;
  pointer-events: none;
  vector-effect: non-scaling-stroke;
}

.map-callout {
  fill: #ffffff;
  stroke: var(--line);
  filter: url(#softShadow);
}

.empty-state {
  padding: 18px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 920px) {
  .app-shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
  }

  .map-panel {
    grid-row: 2;
    min-height: auto;
  }

  .side-panel {
    grid-row: 1;
    position: static;
    max-height: none;
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .event-detail {
    max-height: 34vh;
  }

  .map-stage {
    padding: 10px;
  }

  .map-svg {
    min-height: 360px;
  }

  .taiwan-map-svg {
    min-height: 360px;
  }
}

@media (max-width: 560px) {
  .app-header,
  .control-row {
    grid-template-columns: 1fr;
  }

  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
    text-align: left;
  }

  .icon-button {
    width: 100%;
  }

  .timeline-item {
    grid-template-columns: 56px minmax(0, 1fr);
    width: 270px;
  }

  .map-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .map-actions {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .taiwan-map-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .taiwan-map-tools {
    flex-wrap: wrap;
  }
}