:root {
  --ink: #08090c;
  --ink-2: #0e1016;
  --line: #1c1f26;
  --text: #f3f4f6;
  --muted: #8b909a;
  --bronze: #c4a574;
  --bronze-dim: rgba(196, 165, 116, 0.35);
  --rail-baggage: #7eb0d4;
  --rail-delay: #f5a623;
  --rail-staff: #9b7bb8;
  --rail-info: #6bb3a8;
  --rail-cancel: #d97b7b;
  --rail-other: #5a5f6a;
  --serif: "Noto Serif TC", "Source Han Serif TC", "Songti TC", serif;
  --sans: "Noto Sans TC", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", "SF Mono", ui-monospace, Menlo, monospace;
  --wrap: min(1080px, calc(100% - 2.5rem));
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--ink);
  color: var(--text);
  line-height: 1.55;
  font-size: 15px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: var(--wrap); margin-inline: auto; }

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

.hidden { display: none !important; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--bronze); color: var(--ink); padding: 0.5rem 1rem;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

/* —— Top bar —— */
.topbar {
  position: relative;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem clamp(1rem, 3vw, 1.75rem);
  border-bottom: 1px solid transparent;
}
.topbar-domain {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-decoration: none;
}
.topbar-domain:hover { color: var(--text); }
.topbar-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.topbar-method {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-decoration: none;
}
.topbar-method:hover { color: var(--bronze); }
.lang-toggle { display: flex; align-items: center; gap: 0.35rem; }
.lang-btn {
  background: none; border: 0; padding: 0.15rem 0.2rem;
  font: inherit; font-size: 11px; letter-spacing: 0.08em;
  color: var(--muted); cursor: pointer;
}
.lang-btn.active { color: var(--bronze); }
.lang-btn:focus-visible { outline: 1px solid var(--bronze); outline-offset: 2px; }
.lang-sep { color: var(--line); font-size: 11px; }

/* —— Hero —— */
.hero {
  position: relative;
  min-height: 55vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 768px) {
  .hero { min-height: 78vh; }
}
@media (min-width: 1100px) {
  .hero { min-height: 88vh; }
}

.hero-visual {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.hero-img {
  position: absolute;
  right: -4%;
  top: 0;
  width: min(62%, 820px);
  height: 100%;
  object-fit: cover;
  object-position: center right;
  opacity: 0.92;
  transform: translateZ(0);
}
@media (max-width: 767px) {
  .hero-img {
    right: 0; left: 0; width: 100%;
    opacity: 0.55;
    object-position: 70% center;
  }
}
.hero-visual::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, var(--ink) 0%, rgba(8,9,12,0.94) 38%, rgba(8,9,12,0.45) 68%, rgba(8,9,12,0.2) 100%),
    linear-gradient(180deg, rgba(8,9,12,0.15) 0%, rgba(8,9,12,0.55) 70%, var(--ink) 100%);
}
@media (max-width: 767px) {
  .hero-visual::after {
    background:
      linear-gradient(180deg, rgba(8,9,12,0.35) 0%, rgba(8,9,12,0.75) 55%, var(--ink) 100%),
      linear-gradient(90deg, rgba(8,9,12,0.7) 0%, rgba(8,9,12,0.25) 100%);
  }
}

.hero-rain {
  position: absolute; inset: 0; z-index: 1;
  background-image: repeating-linear-gradient(
    -12deg,
    transparent 0,
    transparent 7px,
    rgba(196,165,116,0.035) 7px,
    rgba(196,165,116,0.035) 8px
  );
  background-size: 28px 48px;
  animation: rain-drift 18s linear infinite;
  opacity: 0.7;
  mix-blend-mode: soft-light;
}
.hero-fog {
  position: absolute; inset: 0; z-index: 1;
  background: radial-gradient(ellipse 55% 45% at 78% 55%, rgba(196,165,116,0.12), transparent 70%);
}

@keyframes rain-drift {
  from { background-position: 0 0; }
  to { background-position: 40px 180px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-rain { animation: none; }
  html { scroll-behavior: auto; }
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 2.5rem 0 2.75rem;
  max-width: 40rem;
}
@media (min-width: 768px) {
  .hero-inner { padding: 4rem 0 3.5rem; }
}

.kicker {
  margin: 0 0 1.1rem;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--bronze);
  font-weight: 500;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2rem, 5.6vw, 3.55rem);
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: var(--text);
}
.h1-line { display: block; }

.hero-sub {
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 28rem;
  line-height: 1.65;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0;
}
.stat {
  padding-right: 1.5rem;
  min-width: 5.5rem;
}
.stat-sep {
  width: 1px;
  background: var(--line);
  margin: 0.15rem 1.35rem 0.15rem 0;
  align-self: stretch;
}
.stat-num {
  font-family: var(--serif);
  font-size: clamp(1.65rem, 3.2vw, 2.15rem);
  font-weight: 600;
  color: var(--bronze);
  line-height: 1.1;
  letter-spacing: 0.02em;
}
.stat-label {
  margin-top: 0.35rem;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* —— Filter dock —— */
.filter-dock {
  background: rgba(8, 9, 12, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  z-index: 30;
}
.filter-dock.sticky {
  position: sticky;
  top: 0;
}
.filter-dock-inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0;
  overflow: hidden;
}
.chips {
  display: flex;
  gap: 0.15rem 0.1rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  flex: 1;
  padding: 0.15rem 0;
}
.chips::-webkit-scrollbar { display: none; }

.chip {
  flex: 0 0 auto;
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 0.55rem 0.85rem;
  cursor: pointer;
  white-space: nowrap;
  transition: color 140ms var(--ease), border-color 140ms var(--ease);
}
.chip .dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  margin-right: 0.4rem;
  vertical-align: middle;
  background: currentColor;
  opacity: 0.7;
}
.chip[data-theme="baggage"] .dot { background: var(--rail-baggage); }
.chip[data-theme="delay"] .dot { background: var(--rail-delay); }
.chip[data-theme="staff"] .dot { background: var(--rail-staff); }
.chip[data-theme="communication"] .dot { background: var(--rail-info); }
.chip[data-theme="cancel"] .dot { background: var(--rail-cancel); }
.chip[data-theme=""] .dot { background: var(--bronze); }

.chip:hover { color: var(--text); }
.chip.active {
  color: var(--text);
  border-bottom-color: var(--bronze);
}
.chip:focus-visible {
  outline: 1px solid var(--bronze);
  outline-offset: 2px;
}

.search-toggle {
  flex: 0 0 auto;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  width: 36px; height: 36px;
  border-radius: 999px;
  display: grid; place-items: center;
  cursor: pointer;
}
.search-toggle:hover, .search-toggle[aria-expanded="true"] {
  color: var(--bronze);
  border-color: var(--bronze-dim);
}
.search-toggle:focus-visible { outline: 1px solid var(--bronze); outline-offset: 2px; }

.search-panel { padding: 0 0 0.75rem; }
.search input {
  width: 100%;
  background: var(--ink-2);
  border: 1px solid var(--line);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  padding: 0.65rem 0.9rem;
  border-radius: 2px;
}
.search input:focus {
  outline: 1px solid var(--bronze);
  border-color: var(--bronze-dim);
}
.search input::placeholder { color: var(--muted); }

.filter-status {
  margin: 0;
  padding: 0 0 0.65rem;
  font-size: 11px;
  color: var(--muted);
  font-family: var(--mono);
  letter-spacing: 0.02em;
}

/* —— List rows —— */
.main { padding: 0.5rem 0 3rem; }

.list {
  display: flex;
  flex-direction: column;
  opacity: 1;
  transition: opacity 150ms var(--ease);
}
.list.is-fading { opacity: 0.35; }

.row {
  display: grid;
  grid-template-columns: 3px minmax(0, 1fr);
  gap: 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: background 140ms var(--ease);
}
.row:hover { background: rgba(255,255,255,0.015); }
.row:focus-within { background: rgba(196,165,116,0.03); }
.row.highlight { background: rgba(196,165,116,0.06); }

.row-rail {
  width: 3px;
  background: var(--rail-other);
  align-self: stretch;
}
.row.theme-baggage .row-rail { background: var(--rail-baggage); }
.row.theme-delay .row-rail { background: var(--rail-delay); }
.row.theme-staff .row-rail { background: var(--rail-staff); }
.row.theme-info .row-rail { background: var(--rail-info); }
.row.theme-cancel .row-rail { background: var(--rail-cancel); }

.row-body {
  padding: 1.05rem 0.85rem 1.05rem 1rem;
  min-width: 0;
}
@media (min-width: 800px) {
  .row-body {
    display: grid;
    grid-template-columns: 7.5rem 5.5rem minmax(0, 1fr) auto;
    gap: 0.85rem 1.1rem;
    align-items: start;
    padding: 1.15rem 0.5rem 1.15rem 1.15rem;
  }
}

.row-time {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.row-plat {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
  padding-top: 0.1rem;
}
.row-main { min-width: 0; }
.row-summary {
  margin: 0;
  font-size: 0.98rem;
  color: var(--text);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.row.open .row-summary { -webkit-line-clamp: unset; }
.row-source {
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  justify-self: end;
  padding-top: 0.15rem;
}
.row-source:hover { color: var(--bronze); }
.row-source:focus-visible {
  outline: 1px solid var(--bronze);
  outline-offset: 3px;
  border-radius: 2px;
}
@media (max-width: 799px) {
  .row-meta-mobile {
    display: flex;
    gap: 0.65rem;
    align-items: baseline;
    margin-bottom: 0.4rem;
  }
  .row-source { display: inline-block; margin-top: 0.55rem; }
}

.row-expand {
  grid-column: 1 / -1;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 220ms var(--ease), opacity 160ms var(--ease), padding 160ms var(--ease);
  padding: 0 0.85rem 0 1rem;
}
.row.open .row-expand {
  max-height: 2400px;
  opacity: 1;
  padding: 0 0.85rem 1.15rem 1rem;
}
@media (min-width: 800px) {
  .row-expand { padding-left: 1.15rem; }
  .row.open .row-expand { padding: 0 0.5rem 1.35rem calc(7.5rem + 5.5rem + 1.1rem + 1.15rem + 3px); }
}

.body-text {
  margin: 0.35rem 0 0;
  color: #d5d8de;
  font-size: 0.92rem;
  line-height: 1.7;
  white-space: pre-wrap;
}
.trans-row {
  display: flex; gap: 0.65rem; align-items: center;
  margin-bottom: 0.35rem;
}
.trans-badge {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--bronze);
  border: 1px solid var(--bronze-dim);
  padding: 0.1rem 0.4rem;
}
.btn-original, .row-toggle {
  background: none; border: 0; padding: 0;
  font: inherit; font-size: 12px;
  color: var(--muted); cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.btn-original:hover, .row-toggle:hover { color: var(--bronze); }
.original {
  margin: 0.65rem 0 0;
  padding: 0.65rem 0.75rem;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  white-space: pre-wrap;
}
.original.hidden-orig { display: none; }
.original-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.1em;
  margin-bottom: 0.35rem;
  color: var(--bronze);
}

.comments {
  margin-top: 0.85rem;
  padding-left: 0.85rem;
  border-left: 1px solid var(--bronze-dim);
}
.comments-title {
  margin: 0 0 0.55rem;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  font-weight: 500;
}
.comment {
  padding: 0.45rem 0 0.45rem 0.75rem;
  border-left: 1px solid var(--line);
  margin-left: 0.15rem;
}
.comment + .comment { margin-top: 0.15rem; }
.comment-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 0.2rem;
}
.comment-body {
  font-size: 0.88rem;
  color: #c8ccd4;
  line-height: 1.55;
}
.no-comments {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 3rem 1rem;
  font-size: 0.95rem;
}

.load-more {
  display: block;
  width: 100%;
  margin: 1.5rem 0 0;
  padding: 0.85rem;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color 140ms var(--ease), border-color 140ms var(--ease);
}
.load-more:hover {
  color: var(--bronze);
  border-color: var(--bronze-dim);
}
.load-more:focus-visible { outline: 1px solid var(--bronze); outline-offset: 2px; }

/* —— Method band —— */
.method-band {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 3rem 0 3.25rem;
}
.method-inner {
  display: grid;
  gap: 2rem;
}
@media (min-width: 720px) {
  .method-inner {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}
.method-col h2 {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
}
.method-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.method-col li {
  position: relative;
  padding: 0 0 0.75rem 0.9rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}
.method-col li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--bronze);
  opacity: 0.7;
}

/* —— Footer —— */
.footer {
  padding: 2rem 0 3rem;
}
.disclaimer {
  margin: 0 0 0.65rem;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.65;
  max-width: 42rem;
}
.footer-extra {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  color: #5e646e;
}

@media (prefers-reduced-motion: reduce) {
  .list, .row, .row-expand, .chip, .load-more { transition: none !important; }
}

@media (max-width: 799px) {
  .desktop-only { display: none !important; }
}
@media (min-width: 800px) {
  .row-meta-mobile { display: none !important; }
}