:root {
  --canvas: #f2eee6;
  --surface: #fbfaf6;
  --surface-strong: #ffffff;
  --surface-muted: #f6f3ec;
  --ink: #202825;
  --ink-soft: #38433f;
  --muted: #707873;
  --faint: #9ba09c;
  --line: #d9d5ca;
  --accent: #b4442c;
  --accent-deep: #87311f;
  --accent-soft: #f6ded5;
  --jade: #17796a;
  --jade-soft: #dceee9;
  --amber: #b56a22;
  --amber-soft: #f7e8d6;
  --blue: #276b85;
  --plum: #6b5b7b;
  --shadow-sm: 0 1px 2px rgba(31, 40, 37, 0.06), 0 8px 24px rgba(31, 40, 37, 0.04);
  --radius: 12px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: "Noto Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

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

.lib-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px clamp(16px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.94);
  backdrop-filter: blur(10px);
}

.lib-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 720;
}

.brand-name {
  font-weight: 720;
  letter-spacing: 0.02em;
}

.lib-badge {
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 12px;
  white-space: nowrap;
}

.lib-top-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lib-note {
  color: var(--faint);
  font-size: 12px;
}

.lib-home-link {
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  text-decoration: none;
  font-size: 12.5px;
  white-space: nowrap;
}

.lib-home-link:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.lib-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: clamp(20px, 4vw, 40px) clamp(16px, 4vw, 40px) 80px;
}

.lib-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: clamp(20px, 4vw, 44px);
  align-items: end;
  padding: 24px 0 26px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 720;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.hero-description {
  max-width: 56ch;
  margin: 0;
  color: var(--ink-soft);
  font-size: 14.5px;
}

.hero-meta {
  margin: 12px 0 0;
  color: var(--faint);
  font-size: 12px;
}

.lib-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.stat-card {
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 11.5px;
}

.stat-value {
  display: block;
  margin-top: 2px;
  font-size: 21px;
  font-weight: 730;
  line-height: 1.2;
}

.lib-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 10px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.search-field {
  flex: 1 1 240px;
}

.search-field input {
  width: 100%;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-strong);
}

.select-field {
  display: grid;
  gap: 3px;
  color: var(--muted);
  font-size: 11.5px;
}

.select-field select {
  min-height: 38px;
  padding: 0 28px 0 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-strong);
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 9px;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  font-weight: 650;
  white-space: nowrap;
}

.primary-button {
  background: var(--accent);
  color: #fff;
}

.primary-button:hover {
  background: var(--accent-deep);
}

.secondary-button {
  border-color: var(--line);
  background: var(--surface);
}

.secondary-button:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.lib-section {
  padding: 26px 0 4px;
}

.lib-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.lib-section-head h2 {
  margin: 0;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.lib-section-head p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 12.5px;
}

.section-count {
  color: var(--faint);
  font-size: 12px;
  white-space: nowrap;
}

.duplicate-list,
.entity-list {
  display: grid;
  gap: 10px;
}

.duplicate-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 12px;
  align-items: stretch;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.duplicate-side {
  display: grid;
  align-content: start;
  gap: 6px;
  min-width: 0;
}

.duplicate-side strong {
  font-size: 16px;
  line-height: 1.3;
}

.duplicate-side small {
  color: var(--muted);
  font-size: 11.5px;
}

.duplicate-actions {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 6px;
  padding: 0 6px;
  border-left: 1px dashed var(--line);
  border-right: 1px dashed var(--line);
  min-width: 128px;
}

.duplicate-score {
  color: var(--faint);
  font-size: 11px;
}

.merge-button {
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-strong);
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
}

.merge-button:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.entity-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.entity-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  padding: 15px 16px;
}

.entity-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
}

.entity-title strong {
  font-size: 17px;
  line-height: 1.25;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 20px;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 620;
  white-space: nowrap;
}

.badge[data-tone="type"] {
  background: var(--surface-muted);
  color: var(--ink-soft);
}

.badge[data-tone="verified"] {
  background: var(--jade-soft);
  color: var(--jade);
}

.badge[data-tone="muted"] {
  background: var(--surface-muted);
  color: var(--muted);
}

.badge[data-tone="fact"] {
  background: var(--amber-soft);
  color: var(--amber);
}

.badge[data-tone="scope"] {
  background: var(--accent-soft);
  color: var(--accent-deep);
}

.entity-aliases {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 12.5px;
  overflow-wrap: anywhere;
}

.entity-projects {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.project-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  max-width: 100%;
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-strong);
  color: var(--ink-soft);
  font-size: 11.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.entity-actions {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  justify-content: flex-end;
  gap: 6px;
}

.entity-actions button {
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-strong);
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
}

.entity-actions button:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.entity-actions button[data-action="unverify"] {
  border-color: var(--jade);
  color: var(--jade);
}

.entity-refs {
  border-top: 1px solid var(--line);
  padding: 10px 16px 12px;
}

.entity-refs summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 12px;
}

.ref-list {
  display: grid;
  gap: 6px;
  margin: 9px 0 0;
  padding: 0;
  list-style: none;
}

.ref-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: space-between;
  padding: 7px 9px;
  border-radius: 7px;
  background: var(--surface-muted);
  font-size: 12px;
}

.ref-list code,
.audit-meta code {
  color: var(--faint);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 10.5px;
  overflow-wrap: anywhere;
}

.audit-list {
  display: grid;
  gap: 7px;
}

.audit-row {
  display: grid;
  grid-template-columns: 150px 92px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  font-size: 12px;
}

.audit-time {
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.audit-action {
  font-weight: 650;
}

.audit-action[data-action="merge"] {
  color: var(--accent-deep);
}

.audit-action[data-action="split"] {
  color: var(--blue);
}

.audit-action[data-action="verify"] {
  color: var(--jade);
}

.audit-meta {
  color: var(--ink-soft);
  overflow-wrap: anywhere;
}

.empty-state {
  padding: 26px 18px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
  font-size: 13px;
}

.lib-state {
  max-width: 560px;
  margin: 9vh auto 0;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.lib-state h1 {
  margin: 0 0 8px;
  font-size: 26px;
}

.lib-state p {
  margin: 0 0 18px;
  color: var(--muted);
}

.split-dialog {
  width: min(520px, calc(100vw - 32px));
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 24px 80px rgba(31, 40, 37, 0.25);
}

.split-dialog::backdrop {
  background: rgba(32, 40, 37, 0.42);
}

.split-card {
  display: grid;
  gap: 14px;
  padding: 22px;
}

.split-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.split-head h2 {
  margin: 0 0 4px;
  font-size: 20px;
}

.split-head p {
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}

.icon-button:hover {
  border-color: var(--line);
  background: var(--surface-muted);
}

.field {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
}

.field select,
.field input {
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-strong);
  color: var(--ink);
}

.form-error {
  margin: 0;
  color: var(--accent-deep);
  font-size: 12.5px;
}

.split-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding-top: 2px;
}

.lib-toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
  max-width: min(420px, calc(100vw - 44px));
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--ink);
  color: #fff;
  box-shadow: 0 14px 44px rgba(31, 40, 37, 0.28);
  font-size: 12.5px;
}

.lib-toast[data-tone="error"] {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
}

@media (max-width: 820px) {
  .lib-hero {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .lib-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .stat-card {
    padding: 10px;
  }

  .stat-value {
    font-size: 18px;
  }

  .duplicate-card {
    grid-template-columns: 1fr;
  }

  .duplicate-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    border: 0;
    border-top: 1px dashed var(--line);
    padding: 9px 0 0;
    min-width: 0;
  }

  .entity-main {
    grid-template-columns: 1fr;
  }

  .entity-actions {
    justify-content: flex-start;
  }

  .audit-row {
    grid-template-columns: 1fr auto;
  }

  .audit-meta {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .lib-top-actions .lib-note {
    display: none;
  }

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

  .lib-toolbar {
    align-items: stretch;
  }

  .select-field {
    flex: 1 1 140px;
  }

  .search-field {
    flex-basis: 100%;
  }
}

@media print {
  .lib-topbar,
  .lib-toolbar,
  .entity-actions,
  .duplicate-section,
  .lib-toast {
    display: none !important;
  }

  body {
    background: #fff;
  }

  .entity-card {
    break-inside: avoid;
    box-shadow: none;
  }
}