:root {
  --bg: #f5f1e9;
  --surface: #fffdf8;
  --surface-strong: #ffffff;
  --ink: #17282c;
  --muted: #627176;
  --line: #d9ddd4;
  --ocean: #053c48;
  --ocean-soft: #0d6676;
  --coral: #c75846;
  --sand: #d5a95e;
  --leaf: #497a62;
  --sky: #d9edf0;
  --verified: #0f766e;
  --guide: #9a5b16;
  --todo: #a14436;
  --conflict: #7c3aed;
  --shadow: 0 18px 46px rgba(23, 40, 44, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(13, 102, 118, 0.14), transparent 420px),
    var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--ocean-soft);
  text-decoration: none;
}

a:hover {
  color: var(--coral);
}

button,
input {
  font: inherit;
}

.site-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 64px;
}

.hero {
  position: relative;
  min-height: 480px;
  display: grid;
  align-items: end;
  overflow: hidden;
  border-radius: var(--radius);
  background: #0b3139;
  box-shadow: var(--shadow);
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  filter: saturate(0.98) contrast(1.03);
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 60, 72, 0.92), rgba(5, 60, 72, 0.58) 48%, rgba(5, 60, 72, 0.14)),
    linear-gradient(0deg, rgba(5, 60, 72, 0.88), transparent 52%);
}

.hero-content {
  position: relative;
  max-width: 760px;
  padding: clamp(28px, 6vw, 68px);
  color: #fffdf8;
}

.eyebrow,
.section-heading span,
.summary-label,
.today-label {
  color: var(--sand);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.6rem, 8vw, 5.8rem);
  line-height: 1;
  letter-spacing: 0;
}

.hero-subtitle {
  margin: 12px 0 0;
  color: #d9edf0;
  font-size: clamp(1.05rem, 2.5vw, 1.38rem);
  font-weight: 800;
}

.hero-copy {
  max-width: 660px;
  margin: 14px 0 0;
  color: rgba(255, 253, 248, 0.88);
  font-size: 1.02rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.hero-actions a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0 16px;
  border: 1px solid rgba(255, 253, 248, 0.48);
  border-radius: var(--radius);
  color: #fffdf8;
  background: rgba(255, 253, 248, 0.12);
  font-weight: 800;
}

.hero-actions a:first-child {
  color: var(--ocean);
  background: #fffdf8;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 20px 0;
}

.summary-card,
.tool-panel,
.today-strip,
.day-card,
.topic-card,
.map-board,
.phrase-board,
.source-board {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 253, 248, 0.94);
  box-shadow: 0 10px 26px rgba(23, 40, 44, 0.08);
}

.summary-card {
  min-height: 158px;
  padding: 18px;
}

.summary-card strong {
  display: block;
  margin-top: 8px;
  color: var(--ocean);
  font-size: 1.08rem;
  line-height: 1.35;
}

.summary-card p,
.tool-panel p,
.map-board p,
.phrase-board p {
  margin: 8px 0 0;
  color: var(--muted);
}

.map-board,
.phrase-board,
.source-board {
  margin-top: 24px;
  padding: 22px;
}

.section-heading {
  margin-bottom: 14px;
}

.section-heading h2,
.tool-panel h2 {
  margin: 0;
  color: var(--ocean);
  font-size: 1.55rem;
  letter-spacing: 0;
}

.status {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  color: #fff;
  background: var(--status-color, var(--ocean-soft));
  font-size: 0.82rem;
  font-weight: 800;
}

.status-verified {
  --status-color: var(--verified);
}

.status-guide {
  --status-color: var(--guide);
}

.status-todo {
  --status-color: var(--todo);
}

.status-conflict {
  --status-color: var(--conflict);
}

.tool-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(280px, 1.2fr);
  gap: 18px;
  align-items: center;
  padding: 20px;
  margin-top: 20px;
}

.search-wrap {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

#searchInput {
  width: 100%;
  min-height: 48px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  background: var(--surface-strong);
  outline: none;
}

#searchInput:focus {
  border-color: var(--ocean-soft);
  box-shadow: 0 0 0 3px rgba(13, 102, 118, 0.18);
}

#searchClear,
#jumpToday {
  min-height: 48px;
  padding: 0 16px;
  border: 1px solid var(--ocean);
  border-radius: var(--radius);
  color: #fff;
  background: var(--ocean);
  cursor: pointer;
  font-weight: 800;
}

#searchClear[hidden] {
  display: none;
}

.today-strip {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 14px 18px;
  margin-top: 20px;
  border-color: rgba(213, 169, 94, 0.48);
  background: #fff8e7;
}

.today-strip[hidden] {
  display: none;
}

.itinerary-section,
.topic-section {
  margin-top: 30px;
}

.itinerary-list,
.topic-list {
  display: grid;
  gap: 14px;
}

.day-card {
  overflow: hidden;
}

.day-card.is-today {
  border-color: rgba(213, 169, 94, 0.82);
  box-shadow: 0 0 0 3px rgba(213, 169, 94, 0.16), 0 10px 26px rgba(23, 40, 44, 0.08);
}

.day-header {
  width: 100%;
  min-height: 112px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 18px;
  align-items: center;
  padding: 20px;
  border: 0;
  color: inherit;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.day-header:hover {
  background: rgba(13, 102, 118, 0.06);
}

.day-header:focus-visible,
.copy-phrase:focus-visible,
.focus-search:focus-visible {
  outline: 3px solid rgba(13, 102, 118, 0.34);
  outline-offset: -3px;
}

.day-meta {
  grid-column: 1 / 2;
  color: var(--sand);
  font-size: 0.9rem;
  font-weight: 800;
}

.day-title {
  grid-column: 1 / 2;
  color: var(--ocean);
  font-size: clamp(1.25rem, 3.5vw, 1.82rem);
  font-weight: 900;
  line-height: 1.22;
}

.day-port {
  grid-column: 1 / 2;
  color: var(--muted);
}

.day-toggle {
  grid-column: 2 / 3;
  grid-row: 1 / 4;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--ocean);
  transition: transform 0.2s ease;
}

.day-card.is-open .day-toggle {
  transform: rotate(180deg);
}

.day-content {
  padding: 0 20px 22px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.5);
}

.day-content[hidden] {
  display: none;
}

.day-note,
.all-aboard {
  margin: 18px 0;
  padding: 12px 14px;
  border-left: 4px solid var(--ocean-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ocean);
  background: rgba(13, 102, 118, 0.1);
}

.all-aboard {
  border-left-color: var(--todo);
  background: rgba(161, 68, 54, 0.08);
}

.segment {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px dashed var(--line);
}

.segment:first-of-type {
  border-top: 0;
}

.segment h3 {
  margin: 0;
  color: var(--coral);
  font-size: 1rem;
}

.activity-list,
.topic-items,
.source-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.activity-item,
.topic-item,
.source-item {
  padding: 14px;
  border: 1px solid rgba(217, 221, 212, 0.9);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.activity-topline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  align-items: center;
}

.activity-name,
.topic-card h3,
.phrase-card h3 {
  color: var(--ink);
  font-weight: 900;
}

.activity-item p,
.topic-item p,
.source-item p {
  margin: 8px 0 0;
  color: var(--muted);
}

.activity-meta,
.topic-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 10px;
}

.pill {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid rgba(13, 102, 118, 0.2);
  border-radius: 999px;
  color: var(--ocean);
  background: rgba(13, 102, 118, 0.08);
  font-size: 0.84rem;
  font-weight: 800;
}

.source-link,
.map-link,
.copy-phrase,
.focus-search {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 12px;
  border: 1px solid rgba(13, 102, 118, 0.24);
  border-radius: var(--radius);
  color: var(--ocean);
  background: rgba(13, 102, 118, 0.07);
  font-size: 0.9rem;
  font-weight: 800;
}

.source-link:hover,
.map-link:hover {
  color: #fff;
  background: var(--coral);
}

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

.topic-card {
  padding: 18px;
}

.topic-card h3 {
  margin: 0 0 10px;
  color: var(--ocean);
  font-size: 1.22rem;
}

.map-link-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.map-card {
  min-height: 160px;
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.map-card span {
  color: var(--sand);
  font-size: 0.82rem;
  font-weight: 900;
}

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

.map-actions,
.phrase-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.taxi-text {
  margin: 4px 0 0;
  padding: 10px;
  border-left: 3px solid var(--leaf);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink);
  background: rgba(73, 122, 98, 0.1);
  font-size: 0.95rem;
}

.phrase-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.phrase-card {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.phrase-card h3 {
  margin: 0;
  color: var(--ocean);
}

.jp-text {
  margin: 0;
  padding: 12px;
  border: 1px solid rgba(13, 102, 118, 0.18);
  border-radius: var(--radius);
  background: var(--sky);
  color: var(--ink);
  font-size: 1.04rem;
  font-weight: 800;
}

.zh-text {
  margin: 0;
  color: var(--muted);
}

.copy-phrase,
.focus-search {
  border-color: var(--ocean);
  color: #fff;
  background: var(--ocean);
  cursor: pointer;
}

.source-board {
  margin-bottom: 18px;
}

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

.source-item strong {
  display: block;
  color: var(--ink);
}

.empty-state {
  padding: 28px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  background: rgba(255, 253, 248, 0.72);
  text-align: center;
}

.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: var(--ocean);
  box-shadow: var(--shadow);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 940px) {
  .summary-grid,
  .map-link-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topic-list,
  .phrase-list,
  .source-list {
    grid-template-columns: 1fr;
  }

  .tool-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(100% - 22px, 1120px);
    padding-top: 12px;
  }

  .hero {
    min-height: 520px;
  }

  .hero-media img {
    object-position: 55% center;
  }

  .hero-media::after {
    background:
      linear-gradient(0deg, rgba(5, 60, 72, 0.95), rgba(5, 60, 72, 0.48) 70%, rgba(5, 60, 72, 0.14)),
      linear-gradient(90deg, rgba(5, 60, 72, 0.78), rgba(5, 60, 72, 0.2));
  }

  .hero-content {
    padding: 24px;
  }

  .summary-grid,
  .search-wrap,
  .today-strip,
  .segment,
  .map-link-list {
    grid-template-columns: 1fr;
  }

  .summary-card {
    min-height: auto;
  }

  .day-header {
    min-height: 126px;
    padding: 18px;
  }

  .day-content {
    padding: 0 18px 20px;
  }

  .map-board,
  .phrase-board,
  .source-board {
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}