:root {
  --bg: #f3eddf;
  --bg-deep: #e5dac3;
  --paper: rgba(255, 251, 243, 0.94);
  --paper-strong: #fffaf0;
  --ink: #16212b;
  --muted: #5d685d;
  --accent: #9d4b2e;
  --accent-soft: rgba(157, 75, 46, 0.14);
  --support: #255a57;
  --support-soft: rgba(37, 90, 87, 0.12);
  --line: rgba(22, 33, 43, 0.12);
  --line-strong: rgba(22, 33, 43, 0.2);
  --shadow: 0 24px 70px rgba(31, 38, 48, 0.12);
  --shadow-strong: 0 28px 85px rgba(31, 38, 48, 0.18);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --font-display: "Iowan Old Style", "Noto Serif TC", "PMingLiU", serif;
  --font-body: "IBM Plex Sans TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at 12% 10%, rgba(157, 75, 46, 0.16), transparent 22%),
    radial-gradient(circle at 88% 8%, rgba(37, 90, 87, 0.16), transparent 20%),
    radial-gradient(circle at 70% 100%, rgba(180, 150, 90, 0.14), transparent 26%),
    linear-gradient(180deg, #f8f2e8 0%, var(--bg) 44%, var(--bg-deep) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.02)),
    repeating-linear-gradient(
      90deg,
      rgba(22, 33, 43, 0.018) 0,
      rgba(22, 33, 43, 0.018) 1px,
      transparent 1px,
      transparent 74px
    );
  opacity: 0.42;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

input:focus-visible,
select:focus-visible,
button:focus-visible {
  outline: 2px solid #ffd9c8;
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(157, 75, 46, 0.32);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  border-radius: 12px;
  background: var(--ink);
  color: #fff7ef;
  font-weight: 700;
  text-decoration: none;
  transition: top 160ms ease;
}

.skip-link:focus {
  top: 1rem;
}

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

button:disabled {
  cursor: not-allowed;
  background: linear-gradient(135deg, #8a6f64, #6e5046);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  padding: 1.5rem 3rem 1rem;
  backdrop-filter: blur(16px);
  background: linear-gradient(180deg, rgba(248, 242, 232, 0.92), rgba(248, 242, 232, 0.66));
  border-bottom: 1px solid rgba(22, 33, 43, 0.08);
}

.brand-block {
  max-width: 42rem;
}

.brand-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
  color: var(--support);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-title {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 2vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
}

.brand-subtitle {
  margin: 0.55rem 0 0;
  max-width: 34rem;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 600;
}

.brand-status {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.55rem 0.75rem;
  margin-top: 0.9rem;
  padding: 0.7rem 1rem;
  border: 1px solid rgba(37, 90, 87, 0.18);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(37, 90, 87, 0.12), rgba(255, 255, 255, 0.55));
  color: var(--support);
}

.brand-status-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.brand-status-value {
  color: var(--ink);
  font-size: 0.98rem;
  font-weight: 700;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.6rem 1.1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.site-nav a:hover {
  border-color: rgba(22, 33, 43, 0.12);
  background: rgba(255, 255, 255, 0.55);
}

.site-nav a.is-active {
  color: var(--accent);
  border-color: rgba(157, 75, 46, 0.28);
  background: var(--accent-soft);
}

.page-shell {
  width: min(1320px, calc(100% - 3rem));
  margin: 0 auto;
  padding: 1.25rem 0 3.5rem;
}

.update-note {
  margin-bottom: 1rem;
  padding: 0.95rem 1.1rem;
  border: 1px solid rgba(37, 90, 87, 0.24);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(37, 90, 87, 0.1), rgba(255, 255, 255, 0.75));
}

.update-note-title {
  margin: 0;
  color: var(--support);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.update-note-body {
  margin: 0.3rem 0 0;
  color: var(--ink);
  font-size: 0.98rem;
  line-height: 1.45;
}

.hero,
.detail-card,
.result-card,
.admin-header {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero::before,
.detail-card::before,
.result-card::before,
.admin-header::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.55), transparent 46%);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 1.85rem;
  align-items: stretch;
  padding: 2rem;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(255, 250, 240, 0.96), rgba(246, 238, 223, 0.94)),
    var(--paper);
}

.hero-topic-index {
  grid-template-columns: 1fr;
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 0.65rem;
  color: var(--support);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.detail-header h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4vw, 3.85rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
}

.hero p,
.detail-header p {
  max-width: 48rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.75;
}

.search-panel {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.9rem;
  padding: 1.8rem;
  border: 1px solid rgba(255, 232, 214, 0.12);
  border-radius: calc(var(--radius-xl) - 6px);
  background:
    radial-gradient(circle at 20% 14%, rgba(227, 138, 83, 0.16), transparent 22%),
    linear-gradient(145deg, rgba(22, 41, 52, 0.99), rgba(15, 30, 38, 0.96)),
    var(--ink);
  color: rgba(255, 248, 239, 0.96);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 20px 44px rgba(10, 20, 26, 0.26);
}

.search-panel-wide {
  min-height: 100%;
  padding: 2.3rem 2.25rem;
  gap: 1rem;
}

.search-panel h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 2.6vw, 2.5rem);
  line-height: 1.02;
}

.search-panel-wide h2 {
  font-size: clamp(2.1rem, 3vw, 2.9rem);
}

.search-kicker {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.36rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 242, 229, 0.92);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.search-helper {
  margin: 0;
  color: rgba(255, 244, 231, 0.8);
  font-size: 0.98rem;
  line-height: 1.7;
}

.search-panel label {
  font-size: 0.95rem;
  font-weight: 600;
  color: rgba(255, 247, 235, 0.84);
}

.search-row,
.inline-form {
  display: flex;
  gap: 0.75rem;
  align-items: stretch;
}

.search-row-wide {
  flex-direction: column;
  gap: 0.85rem;
}

.search-actions-row {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(188px, 1.05fr);
  gap: 0.85rem;
}

input,
select,
button {
  border-radius: 16px;
  border: 1px solid var(--line);
  font: inherit;
}

input,
select {
  width: 100%;
  padding: 0.98rem 1rem;
  color: var(--ink);
  background: rgba(255, 251, 243, 0.95);
}

.search-field-primary {
  min-height: 76px;
  padding: 1.2rem 1.25rem;
  font-size: 1.06rem;
}

.search-actions-row select,
.search-panel-wide .search-submit {
  min-height: 66px;
  padding: 1.15rem 1.2rem;
  font-size: 1.02rem;
}

button {
  padding: 0.95rem 1.25rem;
  color: #fff7ef;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), #7d3720);
  transition: transform 140ms ease, box-shadow 140ms ease;
}

.search-submit {
  min-width: 158px;
  min-height: 66px;
  padding: 1rem 1.55rem;
  border-color: rgba(255, 228, 211, 0.16);
  background:
    linear-gradient(135deg, #b54f25, #8a3312 58%, #6d240e 100%);
  box-shadow: 0 14px 28px rgba(144, 56, 21, 0.28);
}

.search-panel-wide .search-submit {
  min-width: 196px;
  font-size: 1rem;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 26px rgba(125, 55, 32, 0.24);
}

.quick-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.quick-link-list a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0.6rem 0.95rem;
  border: 1px solid rgba(255, 240, 226, 0.14);
  border-radius: 999px;
  color: rgba(255, 244, 231, 0.96);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.05);
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.quick-link-list a:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 220, 195, 0.28);
  background: rgba(255, 255, 255, 0.1);
}

.results-section,
.detail-header,
.detail-grid,
.admin-header {
  margin-top: 1.6rem;
}

.section-title,
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.section-title h2,
.detail-card h2,
.admin-header h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2vw, 2rem);
  line-height: 1.05;
}

.section-actions,
.admin-actions,
.inline-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.section-actions a,
.inline-links a,
.result-actions a,
.detail-card a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.section-actions a:hover,
.inline-links a:hover,
.result-actions a:hover,
.detail-card a:hover {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.card-grid,
.detail-grid {
  display: grid;
  gap: 1rem;
}

.card-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.card-grid-hubs {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.detail-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.result-card,
.detail-card,
.admin-header {
  border-radius: var(--radius-lg);
  background: var(--paper);
}

.result-card,
.detail-card {
  padding: 1.35rem;
}

.result-card {
  min-height: 100%;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.result-card:hover {
  transform: translateY(-3px);
  border-color: rgba(157, 75, 46, 0.2);
  box-shadow: var(--shadow-strong);
}

.topic-card {
  background:
    linear-gradient(180deg, rgba(255, 251, 243, 0.96), rgba(248, 239, 228, 0.92)),
    var(--paper);
}

.task-card {
  background:
    linear-gradient(160deg, rgba(255, 251, 245, 0.98), rgba(240, 233, 220, 0.92)),
    var(--paper);
}

.task-card .pill {
  background: rgba(37, 90, 87, 0.12);
  color: var(--support);
}

.detail-header {
  padding: 1.8rem 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(255, 248, 237, 0.98), rgba(241, 233, 219, 0.92)),
    var(--paper);
  box-shadow: var(--shadow);
}

.detail-header-topic {
  position: relative;
  overflow: hidden;
}

.detail-card-wide {
  grid-column: 1 / -1;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.34rem 0.8rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

dl {
  margin: 0;
}

dl div {
  display: grid;
  grid-template-columns: 124px 1fr;
  gap: 0.85rem;
  padding: 0.72rem 0;
  border-top: 1px solid var(--line);
}

dt {
  color: var(--muted);
  font-size: 0.94rem;
}

dd {
  margin: 0;
  line-height: 1.65;
}

.link-list,
.compact-list {
  display: grid;
  gap: 0.8rem;
  margin: 0;
  padding-left: 1.15rem;
}

.sequence-list {
  display: grid;
  gap: 0.95rem;
  margin: 0;
  padding-left: 1.35rem;
}

.link-list li,
.compact-list li,
.sequence-list li {
  line-height: 1.65;
}

.link-list small,
.compact-list small,
.sequence-list small,
.result-card small {
  display: block;
  margin-top: 0.25rem;
  color: var(--muted);
  line-height: 1.55;
}

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 0.9rem 0.7rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

td {
  font-variant-numeric: tabular-nums;
}

tbody tr {
  transition: background-color 140ms ease;
}

tbody tr:hover {
  background: rgba(255, 255, 255, 0.55);
}

th {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.empty-state {
  padding: 2rem 0;
  color: var(--muted);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.6rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--card-bg);
  flex-wrap: wrap;
}

.pagination a,
.pagination .pagination-disabled {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.pagination a {
  color: var(--accent);
  background: rgba(0, 123, 255, 0.08);
}

.pagination a:hover {
  background: rgba(0, 123, 255, 0.18);
}

.pagination .pagination-disabled {
  color: var(--muted);
  background: transparent;
  cursor: not-allowed;
}

.pagination-status {
  font-size: 0.92rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.kbd-hint {
  display: inline-block;
  margin-left: 0.4rem;
  padding: 0.05rem 0.4rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  border: 1px solid var(--card-border);
  border-radius: 4px;
  background: var(--card-bg);
}

.popular-queries {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
  font-size: 0.88rem;
}

.popular-queries-label {
  color: var(--muted);
  font-weight: 600;
}

.popular-queries a {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: rgba(0, 123, 255, 0.08);
  color: var(--accent);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.popular-queries a:hover {
  background: rgba(0, 123, 255, 0.16);
  border-color: rgba(0, 123, 255, 0.3);
}

.detail-breadcrumb {
  margin-bottom: 0.85rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.detail-breadcrumb a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent);
}

.detail-breadcrumb a:hover {
  border-bottom-style: solid;
}

.hero-stats {
  margin-top: 0.6rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.hero-stats strong {
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  font-weight: 700;
}

.copy-code-button {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: 0.6rem;
  padding: 0.15rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--accent);
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.copy-code-button:hover {
  background: rgba(0, 123, 255, 0.08);
  border-color: rgba(0, 123, 255, 0.3);
}

.copy-code-button.is-copied {
  color: #1a7f37;
  border-color: #1a7f37;
}

.site-footer {
  margin-top: 3.5rem;
  padding: 1.6rem 1rem;
  background: var(--card-bg);
  border-top: 1px solid var(--card-border);
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.site-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.site-footer-disclaimer,
.site-footer-meta {
  margin: 0 0 0.5rem 0;
}

.site-footer-disclaimer strong,
.site-footer-disclaimer b {
  color: var(--ink);
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent);
}

.site-footer a:hover {
  border-bottom-style: solid;
}

.admin-header {
  padding: 1.2rem 1.35rem;
}

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .site-header {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .page-shell {
    width: min(100% - 1.5rem, 1320px);
    padding-top: 1rem;
  }

  .site-header,
  .section-title,
  .admin-header,
  .search-row,
  .inline-form {
    flex-direction: column;
    align-items: stretch;
  }

  .section-actions,
  .admin-actions,
  .inline-links,
  .site-nav {
    align-items: stretch;
  }

  .hero,
  .detail-header,
  .detail-card,
  .result-card {
    border-radius: 24px;
  }

  .hero,
  .detail-header {
    padding: 1.3rem;
  }

  .hero h1,
  .detail-header h1 {
    font-size: clamp(1.95rem, 9vw, 2.7rem);
  }

  .search-panel-wide {
    padding: 1.55rem;
  }

  .search-actions-row {
    grid-template-columns: 1fr;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  dl div {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(22, 33, 43, 0.08);
  color: var(--ink);
}

.status-badge::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: currentColor;
}

.status-badge.is-success {
  background: rgba(37, 90, 87, 0.14);
  color: #1e4845;
}

.status-badge.is-error {
  background: rgba(176, 47, 32, 0.14);
  color: #8a2418;
}

.status-badge.is-running {
  background: rgba(180, 130, 30, 0.16);
  color: #6f4912;
}

.is-busy {
  cursor: progress;
  opacity: 0.78;
}

.is-busy::after {
  content: "";
  display: inline-block;
  margin-left: 0.55rem;
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 999px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  vertical-align: -0.15rem;
  animation: spinner 720ms linear infinite;
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .result-card:hover,
  button:hover {
    transform: none;
  }
}