:root {
  color-scheme: light;
  --paper: #fbfaf6;
  --ink: #27231d;
  --muted: #777064;
  --line: #e7dfd2;
  --panel: #fffdf8;
  --accent: #40675b;
  --accent-soft: #dce8df;
  --warn: #9a5a2e;
  font-family: ui-serif, "Songti SC", "Noto Serif CJK SC", Georgia, serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
}

button, input, textarea, select {
  font: inherit;
}

button {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  min-height: 38px;
  padding: 8px 13px;
  border-radius: 6px;
  cursor: pointer;
}

button.secondary {
  background: transparent;
  color: var(--accent);
}

button.danger {
  border-color: #a65f50;
  color: #8f3f33;
}

button.ghost {
  border-color: transparent;
  background: transparent;
  color: var(--accent);
}

input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fffefb;
  color: var(--ink);
  border-radius: 6px;
  padding: 10px 11px;
  outline-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 92px;
  line-height: 1.55;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
}

.sidebar {
  border-right: 1px solid var(--line);
  padding: 24px 18px;
  background: #f6f1e8;
}

.brand {
  margin-bottom: 28px;
}

.brand h1 {
  margin: 0;
  font-size: 24px;
  line-height: 1.25;
}

.brand p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.route-list {
  display: grid;
  gap: 8px;
}

.route-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px;
  align-items: stretch;
}

.route-tab {
  width: 100%;
  text-align: left;
  border-color: transparent;
  background: transparent;
  color: var(--ink);
  padding: 10px;
}

.route-tab.active {
  border-color: var(--line);
  background: var(--panel);
}

.route-tab small {
  display: block;
  color: var(--muted);
  margin-top: 4px;
}

.route-delete {
  align-self: center;
  padding: 8px;
  font-size: 12px;
}

.main {
  padding: 34px;
  max-width: 1180px;
  width: 100%;
}

.home-question {
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.12;
  margin: 12px 0 18px;
  letter-spacing: 0;
}

.quick-capture {
  max-width: 860px;
}

.home-kicker {
  margin-top: 26px;
  color: var(--muted);
  font-size: 14px;
}

.home-intro {
  max-width: 680px;
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.home-intro p {
  margin: 0 0 6px;
}

.quick-capture textarea {
  min-height: 210px;
  font-size: 17px;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 12px;
}

.hint, .muted {
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 16px;
}

.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 16px;
}

.route-head {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.route-head h2 {
  margin: 0;
  font-size: 34px;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.label input, .label textarea {
  color: var(--ink);
  font-size: 15px;
}

.city-flow {
  display: flex;
  align-items: stretch;
  gap: 10px;
  flex-wrap: wrap;
  margin: 18px 0;
}

.city-insert {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(220px, 1fr) auto;
  gap: 10px;
  align-items: end;
}

.city-pill {
  border: 1px solid var(--line);
  background: #fffefb;
  border-radius: 8px;
  padding: 7px;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.city-pill.disabled,
.city-card.disabled,
.route-city-marker.disabled {
  opacity: 0.48;
  filter: grayscale(0.75);
}

.city-pill.active,
.route-city-marker.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.city-pill-name,
.pill-step {
  border: 0;
  background: transparent;
  color: var(--ink);
  min-height: 28px;
  padding: 3px 6px;
}

.city-pill-name {
  cursor: pointer;
}

.pill-step {
  color: var(--accent);
  border-left: 1px solid var(--line);
  border-radius: 0;
}

.pill-step:disabled {
  opacity: 0.35;
  cursor: default;
}

.arrow {
  color: var(--muted);
  align-self: center;
}

.city-card {
  text-align: left;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  border-color: var(--line);
  min-height: 132px;
}

.city-card h3 {
  margin: 0 0 8px;
  font-size: 24px;
}

.stats {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.chip {
  border: 1px solid var(--line);
  background: #f8f3ea;
  border-radius: 999px;
  padding: 4px 9px;
  color: var(--muted);
  font-size: 13px;
}

.section-title {
  margin: 28px 0 12px;
  font-size: 20px;
}

.item-list {
  display: grid;
  gap: 10px;
}

.item {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.item:first-child {
  border-top: 0;
  padding-top: 0;
}

.link {
  color: var(--accent);
  text-decoration: none;
  word-break: break-all;
}

.toast {
  min-height: 22px;
  color: var(--warn);
}

.view-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.view-head .section-title {
  margin: 0;
}

.segmented {
  display: flex;
  gap: 8px;
}

.map-layout {
  position: relative;
}

.route-map {
  min-height: 600px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #eef2ea;
  overflow: hidden;
  position: relative;
}

.map-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  padding: 18px;
  text-align: center;
}

.map-panel {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 5;
  width: min(320px, calc(100% - 28px));
  max-height: calc(100% - 28px);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 254, 251, 0.96);
  padding: 16px;
  box-shadow: 0 12px 28px rgba(58, 50, 35, 0.16);
  backdrop-filter: blur(6px);
}

.panel-close {
  position: absolute;
  top: 8px;
  right: 8px;
  border: 0;
  background: transparent;
  color: var(--muted);
  min-height: 28px;
  width: 28px;
  padding: 0;
  font-size: 20px;
}

.map-panel h3 {
  margin: 0 28px 8px 0;
  font-size: 24px;
}

.amap-marker-label {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fffefb;
  color: var(--ink);
  padding: 3px 8px;
  box-shadow: 0 4px 12px rgba(58, 50, 35, 0.12);
}

.route-city-marker {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fffefb;
  color: var(--ink);
  padding: 5px 10px;
  min-height: 0;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(58, 50, 35, 0.16);
}

.distance-panel {
  margin-top: 14px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.distance-overview {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 10px;
}

.segment-strip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  padding: 2px 2px 12px;
  scrollbar-color: var(--line) transparent;
}

.segment-card {
  flex: 0 0 210px;
  border: 1px solid var(--line);
  background: #fffefb;
  border-radius: 8px;
  padding: 12px;
  display: grid;
  gap: 6px;
  min-height: 104px;
}

.segment-card strong {
  font-size: 15px;
}

.distance-actions {
  margin-top: 0;
}

.extract-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.extract-row {
  display: grid;
  grid-template-columns: 28px 120px 1fr;
  gap: 10px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  background: #fffefb;
}

.extract-row input {
  width: auto;
}

@media (max-width: 860px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .main {
    padding: 22px;
  }

  .field-row, .two, .three {
    grid-template-columns: 1fr;
  }

  .city-insert {
    grid-template-columns: 1fr;
  }

  .route-map {
    min-height: 520px;
  }

  .map-panel {
    position: static;
    width: auto;
    max-height: none;
    margin-top: 10px;
  }

  .segment-card {
    flex-basis: 190px;
  }
}