#libApp {
  --lib-ui-bg: #090e14;
  --lib-ui-bg-2: #101823;
  --lib-ui-bg-3: #182331;
  --lib-ui-panel: rgba(15, 23, 34, 0.78);
  --lib-ui-panel-soft: rgba(12, 20, 31, 0.82);
  --lib-ui-ink: #e8f0f7;
  --lib-ui-muted: #a7b8c8;
  --lib-ui-line: rgba(114, 159, 193, 0.32);
  --lib-ui-line-strong: rgba(114, 159, 193, 0.52);
  --lib-ui-primary: #6ba5cf;
  --lib-ui-primary-hover: #81b8e0;
  --lib-ui-primary-rgb: 107 165 207;
  --lib-ui-secondary-rgb: 133 204 184;
  --lib-ui-primary-ink: #06131e;
  --lib-ui-btn-text: #e8f0f7;
  --lib-ui-topbar-bg-1: rgba(20, 36, 52, 0.92);
  --lib-ui-topbar-bg-2: rgba(10, 19, 30, 0.92);
  --lib-ui-topbar-title: #e5f0fb;
  --lib-ui-topbar-sub: #a7bfdb;
  --lib-signpad-bg-1: rgba(29, 48, 66, 0.96);
  --lib-signpad-bg-2: rgba(13, 24, 36, 0.96);
  --lib-signpad-grid: rgba(188, 210, 228, 0.22);
  --lib-signpad-ink: rgb(235 244 252);
  --lib-ui-danger: #e16c5f;
  --lib-ui-shadow: 0 18px 56px rgba(2, 8, 15, 0.62);
  --lib-ui-shadow-soft: 0 10px 26px rgba(2, 8, 15, 0.44);
  --lib-landing-max: 1180px;
  --lib-ui-radius: 18px;
  --lib-ui-radius-sm: 12px;
  --lib-ui-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --lib-ui-serif: "Source Han Serif CN", "Source Han Serif SC", "Noto Serif CJK SC", "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --lib-ui-sans: "Source Han Sans CN", "Source Han Sans SC", "Noto Sans CJK SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;

  --lib-doc-bg: #f8f6ef;
  --lib-doc-bg-soft: #eeeadf;
  --lib-doc-line: #b4ab9d;
  --lib-doc-ink: #25221d;
  --lib-doc-muted: #625b50;
  --lib-doc-accent: #3f5e50;
  --lib-doc-stamp: #6f6a61;
  --lib-doc-font-zh: "Source Han Sans CN", "Source Han Sans SC", "Noto Sans CJK SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --lib-doc-font-latin: "Source Han Sans CN", "Source Han Sans SC", "Noto Sans CJK SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;

  background:
    radial-gradient(920px 520px at 8% -12%, rgba(88, 177, 235, 0.16), rgba(88, 177, 235, 0) 64%),
    radial-gradient(860px 520px at 96% 6%, rgba(109, 197, 171, 0.13), rgba(109, 197, 171, 0) 62%),
    linear-gradient(160deg, var(--lib-ui-bg), var(--lib-ui-bg-2) 52%, var(--lib-ui-bg-3));
  color: var(--lib-ui-ink);
  min-height: 100vh;
  font-family: var(--lib-ui-sans);
}

#libApp * {
  box-sizing: border-box;
}

#libApp .lib-hidden {
  display: none !important;
}

#libApp .app-shell,
#libApp .lib-shell {
  max-width: 1320px;
  margin: 0 auto;
  padding: 24px 20px 44px;
}

#libApp.lib-landing-active {
  --lib-ui-bg: #f4f6f2;
  --lib-ui-bg-2: #edf2ec;
  --lib-ui-bg-3: #e5ece4;
  --lib-ui-panel: rgba(244, 246, 242, 0.9);
  --lib-ui-panel-soft: rgba(236, 242, 235, 0.92);
  --lib-ui-ink: #1f3a2e;
  --lib-ui-muted: #3f6b5a;
  --lib-ui-line: rgba(63, 107, 90, 0.26);
  --lib-ui-line-strong: rgba(63, 107, 90, 0.42);
  --lib-ui-primary: #1f3a2e;
  --lib-ui-primary-hover: #2a4b3d;
  --lib-ui-primary-rgb: 31 58 46;
  --lib-ui-secondary-rgb: 198 169 94;
  --lib-ui-primary-ink: #f4f6f2;
  --lib-ui-btn-text: #1f3a2e;
  --lib-ui-topbar-bg-1: rgba(244, 246, 242, 0.94);
  --lib-ui-topbar-bg-2: rgba(232, 238, 230, 0.94);
  --lib-ui-topbar-title: #1f3a2e;
  --lib-ui-topbar-sub: #3f6b5a;
}

#libApp .lib-shell.lib-shell-landing {
  --lib-ui-bg: #f4f6f2;
  --lib-ui-bg-2: #edf2ec;
  --lib-ui-bg-3: #e5ece4;
  --lib-ui-panel: rgba(244, 246, 242, 0.9);
  --lib-ui-panel-soft: rgba(236, 242, 235, 0.92);
  --lib-ui-ink: #1f3a2e;
  --lib-ui-muted: #3f6b5a;
  --lib-ui-line: rgba(63, 107, 90, 0.26);
  --lib-ui-line-strong: rgba(63, 107, 90, 0.42);
  --lib-ui-primary: #1f3a2e;
  --lib-ui-primary-hover: #2a4b3d;
  --lib-ui-primary-rgb: 31 58 46;
  --lib-ui-secondary-rgb: 198 169 94;
  --lib-ui-primary-ink: #f4f6f2;
  --lib-ui-btn-text: #1f3a2e;
  --lib-ui-topbar-bg-1: rgba(244, 246, 242, 0.94);
  --lib-ui-topbar-bg-2: rgba(232, 238, 230, 0.94);
  --lib-ui-topbar-title: #1f3a2e;
  --lib-ui-topbar-sub: #3f6b5a;
  max-width: none;
  margin: 0;
  padding: 0;
  gap: 0;
  min-height: 100vh;
  background:
    radial-gradient(920px 520px at 8% -12%, rgba(63, 107, 90, 0.14), rgba(63, 107, 90, 0) 64%),
    radial-gradient(860px 520px at 96% 6%, rgba(198, 169, 94, 0.12), rgba(198, 169, 94, 0) 62%),
    linear-gradient(160deg, var(--lib-ui-bg), var(--lib-ui-bg-2) 52%, var(--lib-ui-bg-3));
}

#libApp .lib-shell.lib-shell-landing .hub-mono {
  color: #3f6b5a;
}

#libApp .flow-header,
#libApp .lib-topbar {
  display: none;
  position: sticky;
  top: 10px;
  z-index: 20;
  margin: 0 0 14px;
  padding: 10px 12px;
  border: 1px solid var(--lib-ui-line);
  border-radius: 14px;
  background: linear-gradient(180deg, var(--lib-ui-topbar-bg-1), var(--lib-ui-topbar-bg-2));
  box-shadow: 0 16px 34px rgba(5, 15, 26, 0.38);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

#libApp .flow-header.is-visible {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

#libApp .flow-header-left {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

#libApp .flow-header-logo-wrap {
  width: 54px;
  height: 54px;
  border: 1px solid var(--lib-ui-line);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 246, 255, 0.96));
  display: grid;
  place-items: center;
  padding: 6px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 8px 18px rgba(10, 24, 46, 0.16);
  flex: 0 0 auto;
}

#libApp .flow-header-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

#libApp .lib-topbar.logo-dark .flow-header-logo-wrap {
  border-color: rgb(var(--lib-ui-primary-rgb) / 0.5);
  background: linear-gradient(180deg, #1b1e2a, #10131d);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.08), 0 8px 16px rgb(0 0 0 / 0.45);
}

#libApp .flow-header-text {
  min-width: 0;
  display: grid;
  gap: 2px;
}

#libApp .flow-header-right {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

#libApp .flow-header-title {
  font: 700 14px/1.25 var(--lib-ui-sans);
  color: var(--lib-ui-topbar-title);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#libApp .flow-header-sub {
  font: 12px/1.35 var(--lib-ui-mono);
  letter-spacing: 0.04em;
  color: var(--lib-ui-topbar-sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#libApp .lib-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

#libApp .lib-title-main h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

#libApp .lib-title-main p {
  margin: 4px 0 0;
  font-size: 12px;
  color: #a7bfdb;
}

#libApp .lib-toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

#libApp .app-shell.has-flow-header .screen {
  min-height: calc(100vh - 132px);
}

#libApp .app-shell.has-flow-header .screen .top-brand {
  display: none;
}

#libApp .screen {
  min-height: calc(100vh - 68px);
  display: none;
}

#libApp .lib-shell.lib-shell-landing .screen {
  min-height: 100vh;
}

#libApp .screen.active {
  display: block;
  animation: libFadeIn 0.24s ease-out;
}

@keyframes libFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#libApp .top-brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

#libApp .brand-title {
  font-family: var(--lib-ui-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lib-ui-muted);
}

#libApp .brand-status {
  font-family: var(--lib-ui-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: #cee4f8;
  border: 1px solid var(--lib-ui-line);
  background: rgb(var(--lib-ui-primary-rgb) / 0.14);
  border-radius: 999px;
  padding: 4px 10px;
}

#libApp .card {
  border: 1px solid var(--lib-ui-line);
  border-radius: var(--lib-ui-radius);
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.22), rgba(16, 27, 39, 0.94) 44%, rgba(11, 20, 31, 0.96));
  box-shadow: var(--lib-ui-shadow-soft);
  backdrop-filter: blur(8px);
}

#libApp .card.pad-lg {
  padding: 26px;
}

#libApp .card.pad-md {
  padding: 18px;
}

#libApp .lib-stepper {
  border-top: 1px solid var(--lib-ui-line);
  padding-top: 10px;
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 8px;
}

#libApp .lib-step-chip {
  border: 1px solid var(--lib-ui-line);
  border-radius: 999px;
  padding: 6px 8px;
  text-align: center;
  background: rgb(var(--lib-ui-primary-rgb) / 0.14);
  color: #dbe6ff;
  font-family: var(--lib-ui-mono);
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#libApp .lib-step-chip.is-active {
  border-color: var(--lib-ui-primary);
  background: linear-gradient(92deg, var(--lib-ui-primary), rgb(var(--lib-ui-secondary-rgb)));
  color: var(--lib-ui-primary-ink);
  font-weight: 800;
}

#libApp .lib-stage {
  overflow: visible;
}

#libApp .lib-stage-inner {
  padding: 0;
  display: grid;
  gap: 12px;
}

#libApp .lib-stage-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

#libApp .lib-stage-head h2 {
  margin: 0;
  font-size: clamp(30px, 4.8vw, 56px);
  line-height: 1.1;
  letter-spacing: 0.01em;
  font-weight: 800;
  color: var(--lib-ui-topbar-title);
}

#libApp .lib-stage-head p {
  margin: 8px 0 0;
  color: var(--lib-ui-topbar-sub);
  line-height: 1.62;
  font-size: 15px;
  max-width: 860px;
}

#libApp .lib-stage-copy {
  border: 1px solid var(--lib-ui-line);
  border-radius: var(--lib-ui-radius-sm);
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.14), rgba(16, 27, 39, 0.84) 52%, rgba(11, 20, 31, 0.9));
  padding: 14px;
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

#libApp .lib-stage-copy p {
  margin: 0;
  color: var(--lib-ui-topbar-sub);
  line-height: 1.72;
  font-size: 14px;
}

#libApp .lib-stage-copy .lib-stage-quote {
  color: var(--lib-ui-topbar-title);
  font-weight: 700;
}

#libApp .lib-stage-copy .lib-stage-question {
  color: #f2d8ac;
  font-weight: 700;
}

#libApp .lib-dual {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

#libApp .lib-materials-grid {
  display: grid;
  grid-template-columns: minmax(210px, 250px) minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

#libApp .lib-material-list {
  max-height: calc(100vh - 290px);
  overflow: auto;
  padding-right: 4px;
}

#libApp .lib-material-item {
  border: 1px solid var(--lib-ui-line);
  border-radius: 10px;
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.14), rgba(15, 23, 34, 0.82));
  padding: 8px;
  display: grid;
  gap: 8px;
}

#libApp .lib-material-item.is-active {
  border-color: rgb(var(--lib-ui-primary-rgb) / 0.72);
  box-shadow: 0 0 0 1px rgb(var(--lib-ui-primary-rgb) / 0.22), 0 8px 18px rgb(var(--lib-ui-primary-rgb) / 0.18);
}

#libApp .lib-material-item-main {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
  padding: 0;
  display: grid;
  gap: 4px;
}

#libApp .lib-material-title {
  font-size: 13px;
  line-height: 1.4;
  color: var(--lib-ui-ink);
  font-weight: 700;
}

#libApp .lib-material-sub {
  font-size: 11px;
  color: var(--lib-ui-muted);
  line-height: 1.4;
}

#libApp .lib-excerpt-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

#libApp .lib-excerpt-tab {
  appearance: none;
  border: 1px solid var(--lib-ui-line);
  border-radius: 999px;
  background: rgb(var(--lib-ui-primary-rgb) / 0.14);
  color: var(--lib-ui-ink);
  font-size: 12px;
  line-height: 1;
  padding: 7px 10px;
  cursor: pointer;
}

#libApp .lib-excerpt-tab.is-active {
  border-color: rgb(var(--lib-ui-primary-rgb) / 0.72);
  background: rgb(var(--lib-ui-primary-rgb) / 0.32);
}

#libApp .lib-panel {
  border: 1px solid var(--lib-ui-line);
  border-radius: var(--lib-ui-radius-sm);
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.18), rgba(16, 27, 39, 0.92) 52%, rgba(11, 20, 31, 0.94));
  padding: 12px;
  display: grid;
  gap: 10px;
  align-content: start;
  box-shadow: var(--lib-ui-shadow-soft);
}

#libApp .lib-panel h3 {
  margin: 0;
  font-size: 14px;
  color: #e5f0fb;
}

#libApp .lib-panel .lib-kv,
#libApp .lib-doc-row .lib-kv {
  display: grid;
  gap: 4px;
}

#libApp .lib-panel .lib-k,
#libApp .lib-doc-row .lib-k {
  font-size: 12px;
  color: var(--lib-ui-muted);
}

#libApp .lib-panel .lib-v,
#libApp .lib-doc-row .lib-v {
  font-size: 13px;
}

#libApp .lib-input,
#libApp .lib-select,
#libApp .lib-textarea {
  width: 100%;
  border: 1px solid var(--lib-ui-line);
  border-radius: 9px;
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.1), #132132 58%, #0d1724);
  color: var(--lib-ui-ink);
  padding: 9px 10px;
  font-size: 13px;
  font-family: var(--lib-ui-sans);
}

#libApp .lib-select option,
#libApp .lib-select optgroup {
  color: #111;
  background: #fff;
}

#libApp .lib-input::placeholder,
#libApp .lib-textarea::placeholder {
  color: #8ea7bf;
}

#libApp .lib-input:focus,
#libApp .lib-select:focus,
#libApp .lib-textarea:focus {
  outline: none;
  border-color: rgb(var(--lib-ui-primary-rgb) / 0.62);
  box-shadow: 0 0 0 1px rgb(var(--lib-ui-primary-rgb) / 0.32), 0 10px 24px rgb(var(--lib-ui-primary-rgb) / 0.22);
}

#libApp .lib-textarea {
  min-height: 84px;
  resize: vertical;
}

#libApp .lib-check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

#libApp .lib-btn {
  appearance: none;
  border: 1px solid var(--lib-ui-line);
  border-radius: 999px;
  background: rgb(var(--lib-ui-primary-rgb) / 0.14);
  color: var(--lib-ui-btn-text);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 16px;
  cursor: pointer;
  transition: 0.15s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  line-height: 1;
}

#libApp .lib-btn:hover {
  transform: translateY(-1px);
  border-color: rgb(var(--lib-ui-primary-rgb) / 0.62);
  box-shadow: 0 0 0 1px rgb(var(--lib-ui-primary-rgb) / 0.32), 0 10px 24px rgb(var(--lib-ui-primary-rgb) / 0.22);
}

#libApp .lib-btn.is-primary {
  border-color: transparent;
  background: linear-gradient(92deg, var(--lib-ui-primary), rgb(var(--lib-ui-secondary-rgb)));
  color: var(--lib-ui-primary-ink);
  font-weight: 800;
  box-shadow: 0 0 0 1px rgb(var(--lib-ui-primary-rgb) / 0.24), 0 10px 24px rgb(var(--lib-ui-primary-rgb) / 0.24);
}

#libApp .lib-btn.is-primary:hover {
  background: linear-gradient(92deg, var(--lib-ui-primary-hover), rgb(var(--lib-ui-secondary-rgb)));
  box-shadow: 0 0 0 1px rgb(var(--lib-ui-primary-rgb) / 0.3), 0 14px 28px rgb(var(--lib-ui-primary-rgb) / 0.3);
}

#libApp .lib-btn.is-danger {
  border-color: color-mix(in srgb, var(--lib-ui-danger) 72%, #fff);
  color: color-mix(in srgb, var(--lib-ui-danger) 34%, #fff);
}

#libApp .lib-btn.is-ghost {
  background: transparent;
  border-color: var(--lib-ui-line-strong);
}

#libApp .lib-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#libApp .lib-action-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

#libApp .lib-action-row .lib-btn {
  align-self: center;
}

#libApp .lib-action-row.lib-no-stretch .lib-btn {
  flex: 0 0 auto;
  width: auto;
}

#libApp .lib-stage-tail {
  margin-top: 12px;
  padding-bottom: 6px;
}

#libApp .lib-stage-tail .lib-action-row {
  justify-content: flex-start;
}

#libApp .lib-meta-note {
  font-size: 12px;
  color: var(--lib-ui-muted);
}

#libApp .lib-loading-wrap {
  min-height: 64vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

#libApp .loading-wrap {
  min-height: calc(100vh - 80px);
  min-height: calc(100dvh - 80px);
  display: grid;
  place-items: center;
  padding: 24px;
  width: 100%;
}

#libApp[data-lib-step="lib-step-a"] .loading-wrap {
  min-height: auto;
  padding: 0;
}

#libApp[data-lib-step="lib-step-c"] .loading-wrap {
  min-height: auto;
  padding: 0;
}

#libApp[data-lib-step="lib-step-a"] .lib-screen.lib-screen-landing,
#libApp[data-lib-step="lib-step-c"] .lib-screen.lib-screen-landing {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(14px, env(safe-area-inset-top)) 16px max(14px, env(safe-area-inset-bottom));
}

#libApp[data-lib-step="lib-step-a"] .loading-wrap,
#libApp[data-lib-step="lib-step-c"] .loading-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

#libApp .hub-mono {
  margin: 0;
  color: #b7cee3;
  font-family: var(--lib-ui-mono);
  font-size: 12px;
  line-height: 1.25;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#libApp .lib-loading-card {
  display: grid;
  gap: 10px;
}

#libApp .lib-loading-title {
  font-size: 18px;
  font-weight: 700;
}

#libApp .lib-loading-sub {
  font-size: 13px;
  color: var(--lib-ui-muted);
}

#libApp .lib-progress {
  height: 10px;
  border: 1px solid var(--lib-ui-line);
  border-radius: 999px;
  background: rgb(var(--lib-ui-primary-rgb) / 0.12);
  overflow: hidden;
}

#libApp .lib-progress > span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--lib-ui-primary), rgb(var(--lib-ui-secondary-rgb)));
  transition: width 0.2s ease;
}

#libApp .lib-grid-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

#libApp .lib-inst-card {
  border: 1px solid var(--lib-ui-line);
  border-radius: 12px;
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.18), rgba(16, 27, 39, 0.92) 52%, rgba(11, 20, 31, 0.94));
  padding: 12px;
  display: grid;
  gap: 8px;
  box-shadow: var(--lib-ui-shadow-soft);
}

#libApp .lib-inst-card h4 {
  margin: 0;
  font-size: 14px;
}

#libApp .lib-inst-code {
  font-family: var(--lib-ui-mono);
  font-size: 11px;
  color: var(--lib-ui-muted);
}

#libApp .lib-tag-list {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

#libApp .lib-tag {
  border: 1px solid var(--lib-ui-line);
  background: rgb(var(--lib-ui-primary-rgb) / 0.12);
  color: #d3e5f6;
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 11px;
}

#libApp .lib-tag-editor-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

#libApp .lib-tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--lib-ui-line);
  background: rgb(var(--lib-ui-primary-rgb) / 0.16);
  color: var(--lib-ui-ink);
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 11px;
  line-height: 1.2;
}

#libApp .lib-tag-chip-remove {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-size: 12px;
  line-height: 1;
  padding: 0;
}

#libApp .lib-inst-accent {
  display: flex;
  gap: 4px;
}

#libApp .lib-inst-accent span {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.12);
}

#libApp .lib-modal-mask {
  position: fixed;
  inset: 0;
  background: rgb(var(--lib-ui-primary-rgb) / 0.26);
  z-index: 1100;
  display: grid;
  place-items: center;
  padding: 14px;
}

#libApp .lib-modal {
  width: min(680px, 100%);
  max-height: min(86vh, 920px);
  overflow: auto;
  border: 1px solid var(--lib-ui-line);
  border-radius: 16px;
  background: linear-gradient(180deg, rgb(var(--lib-ui-bg) / 0.98), rgb(var(--lib-ui-bg-2) / 0.96));
  box-shadow: var(--lib-ui-shadow);
  padding: 14px;
  display: grid;
  gap: 10px;
}

#libApp .lib-modal h3 {
  margin: 0;
}

#libApp .lib-modal-foot {
  border-top: 1px dashed var(--lib-ui-line);
  margin-top: 4px;
  padding-top: 10px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

#libApp .lib-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

#libApp .lib-table th,
#libApp .lib-table td {
  border: 1px solid var(--lib-ui-line);
  padding: 6px;
  vertical-align: top;
}

#libApp .lib-table th {
  background: rgb(var(--lib-ui-secondary-rgb) / 0.18);
  text-align: left;
}

#libApp .lib-doc-list {
  display: grid;
  gap: 8px;
}

#libApp .lib-doc-row {
  border: 1px solid var(--lib-ui-line);
  border-radius: 10px;
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.1), rgba(17, 23, 33, 0.82));
  padding: 10px;
  display: grid;
  gap: 8px;
}

#libApp .lib-export-layout {
  display: grid;
  grid-template-columns: minmax(300px, 360px) 1fr;
  gap: 12px;
}

#libApp .lib-export-tools {
  border: 1px solid var(--lib-ui-line);
  border-radius: var(--lib-ui-radius-sm);
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.18), rgba(16, 27, 39, 0.92) 52%, rgba(11, 20, 31, 0.94));
  padding: 10px;
  display: grid;
  gap: 10px;
  align-content: start;
}

#libApp .lib-export-status {
  border: 1px solid var(--lib-ui-line);
  border-radius: 10px;
  padding: 8px 10px;
  background: rgba(10, 25, 35, 0.42);
  color: var(--lib-ui-muted);
  font-size: 12px;
  display: grid;
  gap: 2px;
}

#libApp .lib-export-status strong {
  font-size: 13px;
  letter-spacing: 0.02em;
}

#libApp .lib-export-status.is-loading strong {
  color: var(--lib-ui-topbar-title);
}

#libApp .lib-export-status.is-success strong {
  color: #8ed8a2;
}

#libApp .lib-export-status.is-error strong {
  color: #ff9d9d;
}

#libApp .lib-export-guide {
  border: 1px dashed var(--lib-ui-line-strong);
  border-radius: 10px;
  padding: 8px 10px;
  background: rgb(var(--lib-ui-primary-rgb) / 0.08);
  display: grid;
  gap: 4px;
}

#libApp .lib-export-guide p {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--lib-ui-muted);
}

#libApp .lib-export-preview {
  border: 1px solid var(--lib-ui-line);
  border-radius: var(--lib-ui-radius-sm);
  background: linear-gradient(180deg, rgba(14, 36, 48, 0.82), rgba(8, 23, 32, 0.78));
  padding: 10px;
  max-height: 78vh;
  overflow: auto;
  display: grid;
  gap: 12px;
}

#libApp .lib-export-item {
  border: 1px solid var(--lib-ui-line);
  border-radius: 10px;
  background: rgba(10, 25, 35, 0.42);
  padding: 8px;
  display: grid;
  gap: 8px;
}

#libApp .lib-export-item-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

#libApp .lib-export-item-head strong {
  font-size: 13px;
}

#libApp .lib-export-item-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

#libApp .lib-doc-paper {
  width: 420px;
  max-width: 100%;
  margin: 0 auto;
  border: 1px solid var(--lib-doc-line);
  border-radius: 10px;
  background: var(--lib-doc-bg);
  color: var(--lib-doc-ink);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.12);
  overflow: hidden;
  font-family: var(--lib-doc-font-zh);
  position: relative;
}

#libApp .lib-doc-paper.lib-doc-back {
  padding: 0;
}

#libApp .lib-doc-back img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 21 / 26;
}

#libApp .lib-doc-head {
  padding: 10px;
  border-bottom: 1px dashed var(--lib-doc-line);
  background:
    repeating-linear-gradient(
      90deg,
      color-mix(in srgb, var(--lib-doc-accent) 10%, transparent) 0 1px,
      transparent 1px 12px
    ),
    linear-gradient(180deg, var(--lib-doc-bg), var(--lib-doc-bg-soft));
  display: flex;
  gap: 10px;
}

#libApp .lib-doc-logo {
  width: 56px;
  min-width: 56px;
  height: 56px;
  border: 1px solid var(--lib-doc-line);
  border-radius: 8px;
  background: #fff;
  padding: 4px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

#libApp .lib-doc-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#libApp .lib-doc-head h4 {
  margin: 0;
  font-size: 15px;
  line-height: 1.2;
}

#libApp .lib-doc-head p {
  margin: 4px 0 0;
  font-size: 11px;
  line-height: 1.35;
  color: var(--lib-doc-muted);
}

#libApp .lib-doc-body {
  padding: 10px;
  display: grid;
  gap: 8px;
}

#libApp .lib-doc-grid-2 {
  display: grid;
  grid-template-columns: 1fr 102px;
  gap: 8px;
}

#libApp .lib-doc-photo {
  border: 1px dashed var(--lib-doc-line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--lib-doc-bg-soft) 82%, #fff);
  min-height: 136px;
  overflow: hidden;
  display: grid;
  place-items: center;
  font-size: 11px;
  color: var(--lib-doc-muted);
}

#libApp .lib-doc-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#libApp .lib-doc-photo.lib-doc-photo-card {
  width: 96px;
  height: 128px;
  min-height: 128px;
  margin: 0 auto;
}

#libApp .lib-sign-preview {
  margin-top: 10px;
  border: 1px dashed var(--lib-ui-line-strong);
  border-radius: 10px;
  min-height: 72px;
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.08), rgba(7, 16, 25, 0.82));
  display: grid;
  place-items: center;
  overflow: hidden;
}

#libApp .lib-sign-preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 6px;
}

#libApp .lib-sign-empty {
  font-size: 11px;
  color: var(--lib-ui-muted);
}

#libApp .lib-doc-kv {
  border: 1px solid color-mix(in srgb, var(--lib-doc-line) 84%, #fff);
  border-radius: 8px;
  background: #fff;
  padding: 7px;
}

#libApp .lib-doc-k {
  font-size: 10px;
  color: var(--lib-doc-muted);
}

#libApp .lib-doc-v {
  margin-top: 2px;
  font-size: 12px;
  line-height: 1.35;
}

#libApp .lib-doc-v .lib-en,
#libApp .lib-doc-v .lib-num,
#libApp .lib-doc-head .lib-en,
#libApp .lib-doc-head .lib-num,
#libApp .lib-doc-foot .lib-en,
#libApp .lib-doc-foot .lib-num,
#libApp .lib-doc-title .lib-en,
#libApp .lib-doc-title .lib-num {
  font-family: var(--lib-doc-font-latin);
}

#libApp .lib-doc-note {
  border: 1px solid color-mix(in srgb, var(--lib-doc-line) 88%, #fff);
  border-radius: 8px;
  background: #fff;
  padding: 7px;
  font-size: 11px;
  line-height: 1.5;
  color: var(--lib-doc-muted);
}

#libApp .lib-doc-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--lib-doc-accent);
}

#libApp .lib-doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

#libApp .lib-doc-table th,
#libApp .lib-doc-table td {
  border: 1px solid color-mix(in srgb, var(--lib-doc-line) 86%, #fff);
  padding: 5px;
  text-align: left;
}

#libApp .lib-doc-table th {
  background: color-mix(in srgb, var(--lib-doc-bg-soft) 72%, #fff);
}

#libApp .lib-doc-foot {
  font-size: 10px;
  color: var(--lib-doc-muted);
  text-align: right;
}

#libApp .lib-doc-stamp {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 82px;
  height: 82px;
  border: 2px solid color-mix(in srgb, var(--lib-doc-stamp) 70%, transparent);
  border-radius: 50%;
  color: color-mix(in srgb, var(--lib-doc-stamp) 74%, transparent);
  display: grid;
  place-items: center;
  text-align: center;
  font-size: 10px;
  line-height: 1.2;
  transform: rotate(-10deg);
  pointer-events: none;
}

#libApp .lib-cover-34 {
  width: min(46%, 148px);
  aspect-ratio: 3 / 4;
  border: 1px dashed var(--lib-doc-line);
  border-radius: 8px;
  overflow: hidden;
  margin: 2px auto 0;
  display: grid;
  place-items: center;
  font-size: 11px;
  color: var(--lib-doc-muted);
  background: color-mix(in srgb, var(--lib-doc-bg-soft) 72%, #fff);
}

#libApp .lib-cover-34 img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Export cards: keep layout aligned with preview templates */
#libApp .lib-export-preview-page {
  --lib-card-width: 420px;
  min-height: auto;
  padding: 0;
  margin: 0;
  background: transparent;
  overflow: visible;
  color-scheme: light !important;
  forced-color-adjust: none !important;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

#libApp .lib-export-preview-page *,
#libApp .lib-preview-page[data-lib-export-theme="1"],
#libApp .lib-preview-page[data-lib-export-theme="1"] * {
  color-scheme: light !important;
  forced-color-adjust: none !important;
}

#libApp .lib-export-preview-page .lib-id {
  display: none !important;
}

#libApp .lib-export-preview-page .lib-stack {
  width: var(--lib-card-width);
  min-width: var(--lib-card-width);
  max-width: none;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

#libApp .lib-export-preview-page .lib-doc {
  width: 100%;
  border: 1px solid var(--lib-doc-line);
  background:
    linear-gradient(180deg, rgb(255 255 255 / 0.99), rgb(250 253 255 / 0.99)),
    repeating-linear-gradient(
      0deg,
      color-mix(in srgb, var(--lib-doc-accent) 10%, transparent) 0 1px,
      color-mix(in srgb, var(--lib-doc-accent) 0%, transparent) 1px 11px
    );
  color: var(--lib-doc-ink);
  padding: 14px;
  padding-bottom: 44px;
  box-shadow: 0 8px 20px rgb(14 27 43 / 0.08);
  position: relative;
  overflow: hidden;
}

#libApp .lib-export-preview-page .lib-doc:not(.lib-card-back-only)::before {
  content: "";
  position: absolute;
  inset: 7px;
  pointer-events: none;
  z-index: 0;
  background:
    linear-gradient(color-mix(in srgb, var(--lib-doc-accent) 36%, transparent), color-mix(in srgb, var(--lib-doc-accent) 36%, transparent)) left top / 16px 1px no-repeat,
    linear-gradient(color-mix(in srgb, var(--lib-doc-accent) 36%, transparent), color-mix(in srgb, var(--lib-doc-accent) 36%, transparent)) left top / 1px 16px no-repeat,
    linear-gradient(color-mix(in srgb, var(--lib-doc-accent) 36%, transparent), color-mix(in srgb, var(--lib-doc-accent) 36%, transparent)) right top / 16px 1px no-repeat,
    linear-gradient(color-mix(in srgb, var(--lib-doc-accent) 36%, transparent), color-mix(in srgb, var(--lib-doc-accent) 36%, transparent)) right top / 1px 16px no-repeat,
    linear-gradient(color-mix(in srgb, var(--lib-doc-accent) 36%, transparent), color-mix(in srgb, var(--lib-doc-accent) 36%, transparent)) left bottom / 16px 1px no-repeat,
    linear-gradient(color-mix(in srgb, var(--lib-doc-accent) 36%, transparent), color-mix(in srgb, var(--lib-doc-accent) 36%, transparent)) left bottom / 1px 16px no-repeat,
    linear-gradient(color-mix(in srgb, var(--lib-doc-accent) 36%, transparent), color-mix(in srgb, var(--lib-doc-accent) 36%, transparent)) right bottom / 16px 1px no-repeat,
    linear-gradient(color-mix(in srgb, var(--lib-doc-accent) 36%, transparent), color-mix(in srgb, var(--lib-doc-accent) 36%, transparent)) right bottom / 1px 16px no-repeat;
}

#libApp .lib-export-preview-page .lib-doc > * {
  position: relative;
  z-index: 1;
}

#libApp .lib-export-preview-page .lib-doc-header {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid color-mix(in srgb, var(--lib-doc-line) 68%, #fff);
  position: relative;
}

#libApp .lib-export-preview-page .lib-doc-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 130px;
  height: 1px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--lib-doc-accent) 56%, transparent), transparent);
}

#libApp .lib-export-preview-page .lib-head-main {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
}

#libApp .lib-export-preview-page .lib-logo-slot {
  width: 46px;
  height: 46px;
  border: 1px dashed color-mix(in srgb, var(--lib-doc-line) 84%, #fff);
  background: #f7fbff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  overflow: hidden;
  flex: 0 0 auto;
}

#libApp .lib-export-preview-page .lib-logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#libApp .lib-export-preview-page .lib-org {
  min-width: 0;
  min-height: 46px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

#libApp .lib-export-preview-page .lib-org .org-cn {
  margin: 0;
  font-size: 14px;
  line-height: 1.2;
  font-weight: 700;
  color: var(--lib-doc-ink);
}

#libApp .lib-export-preview-page .lib-org .org-en {
  margin: 2px 0 0;
  font-size: 10px;
  color: var(--lib-doc-muted);
}

#libApp .lib-export-preview-page .lib-org .org-meta {
  margin: 4px 0 0;
  font-size: 9px;
  color: var(--lib-doc-muted);
}

#libApp .lib-export-preview-page .lib-section-title {
  margin: 10px 0 8px;
  font-size: 11px;
  color: var(--lib-doc-accent);
  letter-spacing: 0.08em;
  font-weight: 700;
}

#libApp .lib-export-preview-page .lib-grid-2 {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 10px;
}

#libApp .lib-export-preview-page .lib-card-main {
  grid-template-columns: 1fr 96px;
  align-items: start;
}

#libApp .lib-export-preview-page .lib-photo-box {
  width: 96px;
  height: 128px;
  border: 1px dashed var(--lib-doc-line);
  display: grid;
  place-items: center;
  font-size: 10px;
  color: var(--lib-doc-muted);
  background: #f9fbff;
  overflow: hidden;
}

#libApp .lib-preview-page .lib-card-main .lib-photo-box,
#libApp .lib-export-preview-page .lib-card-main .lib-photo-box {
  width: 96px !important;
  height: 128px !important;
}

#libApp .lib-preview-page .lib-photo-box,
#libApp .lib-export-preview-page .lib-photo-box {
  overflow: hidden;
}

#libApp .lib-preview-page .lib-photo-box .lib-intro-cover-image,
#libApp .lib-export-preview-page .lib-photo-box .lib-intro-cover-image {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover;
  object-position: center;
  display: block;
}

#libApp .lib-export-preview-page .lib-kv-list {
  display: grid;
  gap: 5px;
}

#libApp .lib-export-preview-page .lib-kv {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 8px;
  align-items: baseline;
}

#libApp .lib-export-preview-page .lib-k {
  font-size: 10px;
  color: var(--lib-doc-muted);
  line-height: 1.3;
}

#libApp .lib-export-preview-page .lib-v {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--lib-doc-ink);
}

#libApp .lib-export-preview-page .lib-sign-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 8px;
}

#libApp .lib-export-preview-page .lib-sign-box {
  border: 1px dashed color-mix(in srgb, var(--lib-doc-line) 84%, #fff);
  min-height: 44px;
  padding: 6px;
}

#libApp .lib-preview-page .lib-sign-image,
#libApp .lib-export-preview-page .lib-sign-image {
  display: inline-block;
  width: auto !important;
  height: 18px !important;
  max-width: 128px !important;
  max-height: 18px !important;
  vertical-align: middle;
  object-fit: contain;
  object-position: left center;
}

#libApp .lib-preview-page .lib-sign-box .lib-v,
#libApp .lib-export-preview-page .lib-sign-box .lib-v {
  display: flex;
  align-items: center;
  min-height: 18px;
  overflow: hidden;
}

#libApp .lib-export-preview-page .lib-note {
  margin-top: 8px;
  padding: 8px;
  border: 1px solid color-mix(in srgb, var(--lib-doc-line) 88%, #fff);
  background: #fafcff;
  font-size: 11px;
  line-height: 1.5;
  color: color-mix(in srgb, var(--lib-doc-ink) 74%, #fff);
}

#libApp .lib-export-preview-page .lib-contract-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
  font-size: 11px;
  table-layout: fixed;
}

#libApp .lib-export-preview-page .lib-contract-table th,
#libApp .lib-export-preview-page .lib-contract-table td {
  border: 1px solid color-mix(in srgb, var(--lib-doc-line) 86%, #fff);
  padding: 5px 6px;
  text-align: left;
  vertical-align: top;
}

#libApp .lib-export-preview-page .lib-contract-table th {
  background: color-mix(in srgb, var(--lib-doc-bg-soft) 72%, #fff);
  color: color-mix(in srgb, var(--lib-doc-accent) 76%, #001018);
  font-weight: 700;
}

#libApp .lib-export-preview-page .lib-contract-table col.lib-col-title {
  width: 40%;
}

#libApp .lib-export-preview-page .lib-contract-table col.lib-col-author {
  width: 27%;
}

#libApp .lib-export-preview-page .lib-contract-table col.lib-col-isbn {
  width: 33%;
}

#libApp .lib-export-preview-page .lib-agreement-block {
  margin-top: 8px;
  padding: 8px;
  border: 1px solid color-mix(in srgb, var(--lib-doc-line) 84%, #fff);
  background: color-mix(in srgb, var(--lib-doc-bg-soft) 58%, #fff);
}

#libApp .lib-export-preview-page .lib-agreement-title {
  font-size: 11px;
  font-weight: 700;
  line-height: 1.45;
  color: color-mix(in srgb, var(--lib-doc-accent) 72%, #001018);
}

#libApp .lib-export-preview-page .lib-agreement-text {
  margin-top: 6px;
  font-size: 11px;
  line-height: 1.62;
  color: color-mix(in srgb, var(--lib-doc-ink) 74%, #fff);
}

#libApp .lib-export-preview-page .lib-cover-box {
  width: min(46%, 140px);
  aspect-ratio: 3 / 4;
  margin: 2px auto 0;
  border: 1px dashed var(--lib-doc-line);
  display: grid;
  place-items: center;
  color: var(--lib-doc-muted);
  font-size: 11px;
  background: linear-gradient(135deg, #f8fbff, #e7eef8);
  overflow: hidden;
}

#libApp .lib-preview-page .lib-cover-box,
#libApp .lib-export-preview-page .lib-cover-box {
  aspect-ratio: 3 / 4;
  overflow: hidden;
}

#libApp .lib-export-preview-page .lib-intro-cover-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#libApp .lib-preview-page .lib-cover-box .lib-intro-cover-image,
#libApp .lib-export-preview-page .lib-cover-box .lib-intro-cover-image {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover;
  object-position: center;
  display: block;
}

#libApp .lib-export-preview-page .lib-card-back-only {
  padding: 0;
}

#libApp .lib-export-preview-page .lib-card-back-art {
  width: 100%;
  aspect-ratio: 21 / 26;
}

#libApp .lib-export-preview-page .lib-card-back-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#libApp .lib-export-preview-page .lib-meta-grid {
  display: grid;
  gap: 5px;
  margin-top: 22px;
}

#libApp .lib-export-preview-page .lib-tags {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

#libApp .lib-export-preview-page .lib-tag {
  border: 1px solid color-mix(in srgb, var(--lib-doc-line) 84%, #fff);
  padding: 3px 8px;
  font-size: 10px;
  color: color-mix(in srgb, var(--lib-doc-accent) 76%, #001018);
  background: color-mix(in srgb, var(--lib-doc-bg-soft) 72%, #fff);
}

#libApp .lib-export-preview-page .lib-footmark {
  margin-top: 8px;
  text-align: right;
  font-size: 10px;
  color: var(--lib-doc-muted);
}

#libApp .lib-export-preview-page .lib-stamp {
  position: absolute;
  width: 94px;
  height: 94px;
  border: 2px solid color-mix(in srgb, var(--lib-doc-stamp) 70%, transparent);
  border-radius: 50%;
  color: color-mix(in srgb, var(--lib-doc-stamp) 74%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.04em;
  transform: rotate(-14deg);
  background: radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--lib-doc-stamp) 12%, transparent) 0 46%, transparent 52%);
  pointer-events: none;
  z-index: 2;
}

#libApp .lib-export-preview-page .lib-stamp::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1.5px solid color-mix(in srgb, var(--lib-doc-stamp) 58%, transparent);
  border-radius: 50%;
}

#libApp .lib-export-preview-page .lib-stamp-card {
  right: 16px;
  top: 296px;
}

#libApp .lib-export-preview-page .lib-stamp-contract {
  right: 18px;
  top: 342px;
}

#libApp .lib-export-preview-page .lib-excerpt-paper {
  background: linear-gradient(180deg, #fff 0%, #f7fbff 100%);
}

#libApp .lib-export-preview-page .lib-quote-box {
  margin-top: 8px;
  border: 1px solid color-mix(in srgb, var(--lib-doc-line) 84%, #fff);
  background: color-mix(in srgb, var(--lib-doc-bg-soft) 58%, #fff);
  padding: 10px;
}

#libApp .lib-export-preview-page .lib-quote-text {
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  font-weight: 600;
  color: color-mix(in srgb, var(--lib-doc-accent) 74%, #001018);
}

/* html2canvas compatibility: avoid color-mix for export grid/dashed lines */
#libApp .lib-export-preview-page .lib-doc {
  border-color: var(--lib-doc-line) !important;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(250, 253, 255, 0.99)),
    repeating-linear-gradient(
      0deg,
      rgba(var(--lib-ornament-rgb), 0.08) 0 1px,
      rgba(var(--lib-ornament-rgb), 0) 1px 11px
    ) !important;
}

#libApp .lib-export-preview-page .lib-doc:not(.lib-card-back-only)::before {
  background:
    linear-gradient(rgba(var(--lib-ornament-rgb), 0.36), rgba(var(--lib-ornament-rgb), 0.36)) left top / 16px 1px no-repeat,
    linear-gradient(rgba(var(--lib-ornament-rgb), 0.36), rgba(var(--lib-ornament-rgb), 0.36)) left top / 1px 16px no-repeat,
    linear-gradient(rgba(var(--lib-ornament-rgb), 0.36), rgba(var(--lib-ornament-rgb), 0.36)) right top / 16px 1px no-repeat,
    linear-gradient(rgba(var(--lib-ornament-rgb), 0.36), rgba(var(--lib-ornament-rgb), 0.36)) right top / 1px 16px no-repeat,
    linear-gradient(rgba(var(--lib-ornament-rgb), 0.36), rgba(var(--lib-ornament-rgb), 0.36)) left bottom / 16px 1px no-repeat,
    linear-gradient(rgba(var(--lib-ornament-rgb), 0.36), rgba(var(--lib-ornament-rgb), 0.36)) left bottom / 1px 16px no-repeat,
    linear-gradient(rgba(var(--lib-ornament-rgb), 0.36), rgba(var(--lib-ornament-rgb), 0.36)) right bottom / 16px 1px no-repeat,
    linear-gradient(rgba(var(--lib-ornament-rgb), 0.36), rgba(var(--lib-ornament-rgb), 0.36)) right bottom / 1px 16px no-repeat !important;
}

#libApp .lib-export-preview-page .lib-doc-header {
  border-bottom: 1px solid rgba(var(--lib-ornament-rgb), 0.34) !important;
}

#libApp .lib-export-preview-page .lib-doc-header::after {
  background: linear-gradient(90deg, rgba(var(--lib-ornament-rgb), 0.56), rgba(var(--lib-ornament-rgb), 0)) !important;
}

#libApp .lib-export-preview-page .lib-logo-slot,
#libApp .lib-export-preview-page .lib-photo-box,
#libApp .lib-export-preview-page .lib-sign-box {
  border-color: rgba(var(--lib-ornament-rgb), 0.42) !important;
}

#libApp .lib-export-preview-page .lib-note,
#libApp .lib-export-preview-page .lib-contract-table th,
#libApp .lib-export-preview-page .lib-contract-table td,
#libApp .lib-export-preview-page .lib-agreement-block,
#libApp .lib-export-preview-page .lib-tag,
#libApp .lib-export-preview-page .lib-quote-box {
  border-color: rgba(var(--lib-ornament-rgb), 0.34) !important;
}

#libApp .lib-export-preview-page .lib-note,
#libApp .lib-export-preview-page .lib-agreement-block,
#libApp .lib-export-preview-page .lib-quote-box {
  background-color: rgba(255, 255, 255, 0.78) !important;
}

#libApp .lib-crop-mask {
  position: fixed;
  inset: 0;
  z-index: 1200;
  background: rgba(6, 12, 18, 0.62);
  backdrop-filter: blur(4px);
  display: grid;
  place-items: center;
  padding: 14px;
}

#libApp .lib-crop-panel {
  width: min(860px, 100%);
  border: 1px solid var(--lib-ui-line);
  border-radius: 12px;
  background: linear-gradient(180deg, rgb(var(--lib-ui-bg) / 0.995), rgb(var(--lib-ui-bg-2) / 0.99));
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.36);
  padding: 12px;
  display: grid;
  gap: 10px;
}

#libApp .lib-crop-grid {
  display: grid;
  grid-template-columns: minmax(220px, 320px) 1fr;
  gap: 12px;
}

#libApp .lib-crop-preview {
  width: 100%;
  aspect-ratio: 3 / 4;
  border: 1px dashed var(--lib-ui-line-strong);
  border-radius: 10px;
  background: linear-gradient(180deg, rgb(var(--lib-ui-bg) / 0.92), rgb(var(--lib-ui-bg-3) / 0.9));
  overflow: hidden;
  display: grid;
  place-items: center;
}

#libApp .lib-crop-preview canvas {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: grab;
}

#libApp .lib-sign-mask {
  position: fixed;
  inset: 0;
  z-index: 1210;
  background: rgba(6, 12, 18, 0.62);
  backdrop-filter: blur(4px);
  display: grid;
  place-items: center;
  padding: 14px;
}

#libApp .lib-sign-panel {
  width: min(860px, 100%);
  border: 1px solid var(--lib-ui-line);
  border-radius: 12px;
  background: linear-gradient(180deg, rgb(var(--lib-ui-bg) / 0.995), rgb(var(--lib-ui-bg-2) / 0.99));
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.36);
  padding: 12px;
  display: grid;
  gap: 10px;
}

#libApp .lib-sign-canvas-wrap {
  border: 1px dashed var(--lib-ui-line-strong);
  border-radius: 10px;
  background:
    linear-gradient(180deg, var(--lib-signpad-bg-1), var(--lib-signpad-bg-2)),
    repeating-linear-gradient(0deg, var(--lib-signpad-grid) 0 1px, transparent 1px 32px);
  overflow: hidden;
}

#libApp #libSignPadCanvas {
  width: 100%;
  height: auto;
  display: block;
  touch-action: none;
  cursor: crosshair;
}

#libApp .lib-slider-row {
  display: grid;
  gap: 4px;
}

#libApp .lib-slider-row input[type="range"] {
  width: 100%;
}

#libApp .lib-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

#libApp .lib-form-grid .lib-span-2 {
  grid-column: span 2;
}

#libApp .lib-inline-note {
  font-size: 11px;
  color: var(--lib-ui-muted);
}

#libApp .lib-panel .lib-note,
#libApp .lib-doc-row .lib-note {
  border: 1px solid var(--lib-ui-line);
  border-radius: 10px;
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.1), rgba(17, 23, 33, 0.82));
  padding: 8px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--lib-ui-muted);
}

#libApp .lib-pill {
  border: 1px solid var(--lib-ui-line);
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 11px;
  color: #f6ead8;
  background: rgb(var(--lib-ui-primary-rgb) / 0.14);
  font-family: var(--lib-ui-mono);
}

#libApp .lib-empty {
  border: 1px dashed var(--lib-ui-line-strong);
  border-radius: 10px;
  background: rgba(10, 25, 35, 0.42);
  padding: 10px;
  font-size: 12px;
  color: var(--lib-ui-muted);
}

#libApp .lib-fixedbar {
  position: sticky;
  bottom: 0;
  background: linear-gradient(180deg, rgba(8, 22, 31, 0), rgba(8, 22, 31, 0.94) 24%, rgba(8, 22, 31, 1) 100%);
  padding-top: 8px;
}

#libApp .lib-status {
  font-size: 12px;
  color: var(--lib-ui-muted);
}

#libApp .lib-link-box {
  border: 1px dashed var(--lib-ui-line-strong);
  border-radius: 10px;
  padding: 8px;
  background: rgba(10, 25, 35, 0.42);
  font-size: 12px;
  word-break: break-all;
}

#libApp .lib-error {
  color: var(--lib-ui-danger);
  font-size: 12px;
}

#libApp .hub-disclaimer {
  border: 1px solid rgb(var(--lib-ui-primary-rgb) / 0.26);
  border-radius: var(--lib-ui-radius-sm);
  background: linear-gradient(180deg, rgb(var(--lib-ui-secondary-rgb) / 0.16), rgb(var(--lib-ui-primary-rgb) / 0.06));
  color: color-mix(in srgb, var(--lib-ui-primary) 80%, #000);
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.55;
}

#libApp .hub-disclaimer.weak {
  border-color: rgb(var(--lib-ui-primary-rgb) / 0.22);
  background: linear-gradient(180deg, rgb(var(--lib-ui-secondary-rgb) / 0.14), rgb(var(--lib-ui-primary-rgb) / 0.05));
  color: var(--lib-ui-topbar-sub);
}

#libApp .hub-disclaimer strong {
  font-weight: 800;
  color: var(--lib-ui-topbar-title);
}

#libApp .sub-en {
  font-family: var(--lib-ui-serif);
  letter-spacing: 0.03em;
}

#libApp .loading-panel {
  position: relative;
  overflow: hidden;
  width: min(760px, 94vw);
  margin: 0 auto;
  padding: 36px 30px 30px;
  border-radius: 24px;
  border: 1px solid rgb(var(--lib-ui-primary-rgb) / 0.32);
  background: linear-gradient(180deg, rgb(var(--lib-ui-bg) / 0.95), rgb(var(--lib-ui-bg-2) / 0.93));
  box-shadow: 0 22px 48px rgb(var(--lib-ui-primary-rgb) / 0.18);
  backdrop-filter: blur(12px) saturate(125%);
}

#libApp .loading-title {
  margin: 0;
  font-size: clamp(26px, 4.6vw, 44px);
  line-height: 1.08;
  font-weight: 900;
  color: var(--lib-loading-ink, var(--lib-ui-ink));
  position: relative;
  z-index: 2;
}

#libApp .loading-copy {
  margin: 10px 0 16px;
  color: var(--lib-loading-sub, rgb(var(--lib-ui-secondary-rgb) / 0.86));
  line-height: 1.72;
  font-size: 14px;
  position: relative;
  z-index: 2;
}

#libApp .loading-panel .disclaimer,
#libApp .loading-panel .progress-track,
#libApp .loading-panel .progress-meta {
  position: relative;
  z-index: 2;
}

#libApp .loading-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.92;
}

#libApp .progress-track {
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--lib-ui-line-strong);
  background: rgb(var(--lib-ui-primary-rgb) / 0.16);
  overflow: hidden;
}

#libApp .progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--lib-ui-primary), rgb(var(--lib-ui-secondary-rgb)));
  transition: width 0.18s linear;
}

#libApp .progress-meta {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  font-family: var(--lib-ui-mono);
  letter-spacing: 0.04em;
  color: var(--lib-loading-meta, color-mix(in srgb, var(--lib-ui-ink) 78%, #fff));
}

#libApp .hero {
  width: min(var(--lib-landing-max), 100%);
  margin: clamp(18px, 4vh, 42px) auto 0;
  border: 1px solid var(--lib-ui-line);
  border-radius: 26px;
  min-height: calc(100vh - 120px);
  padding: clamp(56px, 8vw, 120px) clamp(34px, 6vw, 90px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 14% -12%, rgba(63, 107, 90, 0.24), transparent 40%),
    radial-gradient(circle at 86% 0%, rgba(198, 169, 94, 0.18), transparent 44%),
    linear-gradient(180deg, rgba(246, 249, 243, 0.94), rgba(233, 239, 229, 0.9));
  box-shadow: 0 18px 42px rgba(31, 58, 46, 0.16);
}

#libApp .hero::before,
#libApp .hero::after {
  content: "";
  position: absolute;
  inset: -30%;
  pointer-events: none;
  z-index: 0;
}

#libApp .hero::before {
  background:
    radial-gradient(circle at 18% 22%, rgba(63, 107, 90, 0.22), transparent 34%),
    radial-gradient(circle at 86% 70%, rgba(198, 169, 94, 0.2), transparent 38%),
    radial-gradient(circle at 62% 42%, rgba(63, 107, 90, 0.12), transparent 44%);
  filter: blur(12px);
  animation: heroAuraFlow 16s ease-in-out infinite alternate;
}

#libApp .hero::after {
  background:
    radial-gradient(rgba(63, 107, 90, 0.18) 1px, transparent 1px),
    radial-gradient(rgba(198, 169, 94, 0.14) 1px, transparent 1px);
  background-size: 34px 34px, 56px 56px;
  background-position: 0 0, 14px 10px;
  mix-blend-mode: multiply;
  opacity: 0.24;
  animation: heroGridDrift 24s linear infinite;
}

#libApp .hero > * {
  position: relative;
  z-index: 2;
}

#libApp .hero .hero-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.96;
}

#libApp .hero .hero-main-title {
  margin: 0;
  line-height: 1.06;
  max-width: min(980px, 90%);
  font-family: "WDXL Lubrifont SC", var(--lib-ui-sans);
  text-wrap: balance;
}

#libApp .hero .hero-line {
  display: block;
}

#libApp .hero .hero-line-welcome {
  font-size: clamp(32px, 4.8vw, 58px);
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1.2px #1f3a2e;
  letter-spacing: 0.03em;
}

#libApp .hero .hero-welcome-en {
  margin-left: 0.38em;
  color: #c6a95e;
  -webkit-text-stroke: 0;
  font-family: var(--lib-ui-serif);
  font-size: 0.58em;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-style: italic;
}

#libApp .hero .hero-line-cn {
  margin-top: 0.12em;
  font-size: clamp(46px, 6.4vw, 86px);
  font-weight: 900;
  color: #1f3a2e;
  text-shadow: 0 0 18px rgba(63, 107, 90, 0.16);
}

#libApp .hero .hero-line-cn .hero-cn-main,
#libApp .hero .hero-line-cn .hero-cn-sub {
  display: inline-block;
  white-space: nowrap;
}

#libApp .hero .hero-line-cn .hero-cn-sub {
  margin-left: 0.22em;
}

#libApp .hero .hero-sub-en {
  margin: 16px 0 0;
  font-family: var(--lib-ui-serif);
  font-size: clamp(24px, 3.6vw, 44px);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #2f4f40;
  max-width: min(950px, 86%);
  line-height: 1.24;
}

#libApp .hero .hero-status {
  min-height: 22px;
  margin-top: 2px;
  font-family: var(--lib-ui-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: #3f6b5a;
  text-transform: uppercase;
}

#libApp .hero .hero-code-roll,
#libApp .hero .hero-system-status {
  display: inline-block;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.28s ease, transform 0.28s ease;
}

#libApp .hero .hero-code-roll.is-visible,
#libApp .hero .hero-system-status.is-visible {
  opacity: 1;
  transform: translateY(0);
}

#libApp .hero .hero-code-roll {
  color: #3f6b5a;
}

#libApp .hero .hero-system-status {
  color: #1f3a2e;
  font-weight: 700;
  display: none;
}

#libApp .hero .tip {
  margin-top: 2px;
  font-size: 17px;
  color: #3f6b5a;
  line-height: 1.6;
  max-width: min(760px, 70%);
}

#libApp .hero .hero-brief {
  margin-top: 4px;
  max-width: min(900px, 80%);
  display: grid;
  gap: 6px;
}

#libApp .hero .hero-brief-line {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #355949;
  opacity: 0;
  transform: translateY(14px);
}

#libApp .hero .hero-brief-cta {
  margin-top: 4px;
  opacity: 0;
  transform: translateY(14px);
}

#libApp .hero .hero-confirm-btn {
  appearance: none;
  border: 1px solid rgba(31, 58, 46, 0.48);
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(31, 58, 46, 0.94), rgba(63, 107, 90, 0.92));
  color: #f4f6f2;
  font-family: var(--lib-ui-sans);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.04em;
  text-shadow: none;
  padding: 11px 18px;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

#libApp .hero .hero-confirm-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(198, 169, 94, 0.78);
  box-shadow: 0 0 0 1px rgba(63, 107, 90, 0.26), 0 8px 24px rgba(31, 58, 46, 0.25);
}

#libApp .hero .hero-confirm-btn:active {
  transform: translateY(0);
}

#libApp .hero .disclaimer.weak {
  margin-top: 22px;
  width: min(760px, 72%);
}

#libApp .hero .hero-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(18px);
  filter: blur(6px);
  will-change: transform, opacity, filter;
}

#libApp .hero.hero-animate .hero-char {
  animation: heroCharIn 0.72s cubic-bezier(.22, .8, .28, 1) forwards;
  animation-delay: calc(var(--char-i, 0) * 42ms + 120ms);
}

#libApp .hero .hero-sub-en,
#libApp .hero .hero-status,
#libApp .hero .tip,
#libApp .hero .hero-brief-line,
#libApp .hero .hero-brief-cta,
#libApp .hero .disclaimer.weak {
  opacity: 0;
  transform: translateY(14px);
}

#libApp .hero.hero-animate .hero-sub-en {
  animation: heroTextIn 0.7s ease forwards;
  animation-delay: 1s;
}

#libApp .hero.hero-animate .hero-status {
  animation: heroTextIn 0.7s ease forwards;
  animation-delay: 1.2s;
}

#libApp .hero.hero-animate .tip {
  animation: heroTextIn 0.7s ease forwards;
  animation-delay: 1.38s;
}

#libApp .hero.hero-animate .hero-brief-line {
  animation: heroTextIn 0.7s ease forwards;
  animation-delay: calc(1.5s + var(--line-i, 0) * 140ms);
}

#libApp .hero.hero-animate .hero-brief-cta {
  animation: heroTextIn 0.7s ease forwards;
  animation-delay: 2.2s;
}

#libApp .hero.hero-animate .disclaimer.weak {
  animation: heroTextIn 0.7s ease forwards;
  animation-delay: 2.64s;
}

@keyframes heroAuraFlow {
  0% { transform: translate3d(-3%, -2%, 0) scale(1); }
  50% { transform: translate3d(2%, 1%, 0) scale(1.04); }
  100% { transform: translate3d(4%, 3%, 0) scale(1.08); }
}

@keyframes heroGridDrift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-56px, -34px, 0); }
}

@keyframes heroCharIn {
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

@keyframes heroTextIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#libApp .inst-layout {
  width: min(var(--lib-landing-max), 100%);
  margin: clamp(32px, 6vh, 72px) auto 0;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

#libApp .inst-layout.jump-highlight {
  animation: instAreaFocus 0.8s ease;
}

#libApp .inst-grid-shell {
  width: 100%;
  border-color: rgb(var(--lib-ui-primary-rgb) / 0.36);
  background: linear-gradient(180deg, rgb(var(--lib-ui-bg) / 0.94), rgb(var(--lib-ui-bg-2) / 0.92));
  backdrop-filter: blur(10px) saturate(118%);
  box-shadow: 0 16px 40px rgb(var(--lib-ui-primary-rgb) / 0.14);
}

#libApp .inst-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  justify-items: center;
  perspective: 920px;
}

#libApp .inst-card {
  width: 100%;
  max-width: 248px;
  border: 1px solid rgb(var(--lib-ui-primary-rgb) / 0.34);
  border-radius: 16px;
  background: linear-gradient(170deg, rgb(var(--lib-ui-bg) / 0.95), rgb(var(--lib-ui-bg-2) / 0.93) 58%, rgb(var(--lib-ui-bg-3) / 0.92));
  padding: 16px 14px 14px;
  min-height: 220px;
  cursor: pointer;
  transition: 0.18s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  color: var(--lib-ui-topbar-title);
  transform: translateY(0) scale(0.98);
  box-shadow: 0 12px 26px rgb(var(--lib-ui-primary-rgb) / 0.14);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(7px);
}

#libApp .inst-card::before {
  content: "";
  position: absolute;
  inset: -26% -18% auto;
  height: 70%;
  background: radial-gradient(circle at 40% 10%, rgb(var(--lib-ui-secondary-rgb) / 0.2), transparent 64%);
  pointer-events: none;
}

#libApp .inst-card > * {
  position: relative;
  z-index: 1;
}

#libApp .inst-logo-wrap {
  width: 148px;
  height: 148px;
  border-radius: 18px;
  border: 1px solid rgba(77, 109, 157, 0.18);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 246, 255, 0.96));
  display: grid;
  place-items: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 8px 18px rgba(10, 24, 46, 0.12);
  padding: 12px;
}

#libApp .inst-card[data-logo-bg="dark"] .inst-logo-wrap {
  border-color: rgb(var(--lib-ui-primary-rgb) / 0.5);
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.92), rgb(var(--lib-ui-primary-rgb) / 0.78));
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.08), 0 12px 24px rgb(var(--lib-ui-primary-rgb) / 0.34);
}

#libApp .inst-card:hover {
  transform: translateY(-4px) scale(1);
  border-color: rgb(var(--lib-ui-primary-rgb) / 0.56);
  box-shadow: 0 0 0 1px rgb(var(--lib-ui-primary-rgb) / 0.2), 0 16px 34px rgb(var(--lib-ui-primary-rgb) / 0.2);
}

#libApp .inst-grid.has-active .inst-card:not(.active) {
  opacity: 0.5;
  transform: translateY(0) scale(0.95);
  filter: saturate(0.7) brightness(0.96);
}

#libApp .inst-card.active {
  border-color: var(--lib-ui-primary);
  box-shadow: 0 0 0 1px rgb(var(--lib-ui-primary-rgb) / 0.34), 0 20px 36px rgb(var(--lib-ui-primary-rgb) / 0.24);
  background: linear-gradient(170deg, rgb(var(--lib-ui-bg) / 0.98), rgb(var(--lib-ui-bg-2) / 0.96) 52%, rgb(var(--lib-ui-bg-3) / 0.95));
  transform: translateY(-9px) scale(1.05);
  z-index: 3;
}

#libApp .inst-card.picked {
  animation: instCardPick 0.34s cubic-bezier(.2, .8, .24, 1);
}

#libApp .inst-logo {
  width: 100%;
  height: 100%;
  object-fit: fill;
}

#libApp .inst-code {
  font-family: var(--lib-ui-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lib-ui-topbar-sub);
  margin: 0;
}

#libApp .inst-name {
  font-size: 16px;
  line-height: 1.35;
  font-weight: 800;
  margin: 0;
  color: var(--lib-ui-topbar-title);
}

#libApp .inst-slogan {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--lib-ui-topbar-sub);
}

#libApp .inst-card-tags {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
}

#libApp .inst-mini-tag {
  font-size: 10px;
  font-family: var(--lib-ui-mono);
  letter-spacing: 0.02em;
  padding: 3px 7px;
  border-radius: 999px;
  border: 1px solid rgb(var(--lib-ui-primary-rgb) / 0.34);
  background: rgb(var(--lib-ui-secondary-rgb) / 0.2);
  color: var(--lib-ui-topbar-title);
}

@keyframes instCardPick {
  0% { transform: translateY(0) scale(0.98); }
  62% { transform: translateY(-14px) scale(1.08); }
  100% { transform: translateY(-9px) scale(1.05); }
}

@keyframes instAreaFocus {
  0% { box-shadow: 0 0 0 0 rgb(var(--lib-ui-primary-rgb) / 0); }
  35% { box-shadow: 0 0 0 2px rgb(var(--lib-ui-primary-rgb) / 0.28); }
  100% { box-shadow: 0 0 0 0 rgb(var(--lib-ui-primary-rgb) / 0); }
}

#libApp .inst-detail {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
  z-index: 130;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

#libApp .inst-detail.open {
  opacity: 1;
  pointer-events: auto;
}

#libApp .inst-detail-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(31, 58, 46, 0.3);
  backdrop-filter: blur(2px);
  cursor: pointer;
}

#libApp .inst-detail-panel {
  position: relative;
  z-index: 1;
  width: min(760px, 94vw);
  max-height: calc(100vh - 44px);
  overflow: auto;
  border: 1px solid rgb(var(--lib-ui-primary-rgb) / 0.32);
  border-radius: 22px;
  background: linear-gradient(180deg, var(--lib-ui-bg), var(--lib-ui-bg-2) 32%, var(--lib-ui-bg-3));
  box-shadow: 0 34px 88px rgb(var(--lib-ui-primary-rgb) / 0.3);
  padding: 24px 24px 20px;
  text-align: center;
  color: var(--lib-ui-topbar-title);
}

#libApp .inst-detail-close {
  appearance: none;
  position: absolute;
  top: 10px;
  right: 10px;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgb(var(--lib-ui-primary-rgb) / 0.32);
  background: rgb(var(--lib-ui-secondary-rgb) / 0.18);
  color: var(--lib-ui-topbar-title);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

#libApp .inst-detail-code {
  margin: 0 0 12px;
}

#libApp .logo-lg-wrap {
  width: 148px;
  height: 148px;
  margin: 0 auto 14px;
  border-radius: 26px;
  border: 1px solid rgb(var(--lib-ui-primary-rgb) / 0.2);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(246, 250, 243, 0.98));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 14px 28px rgb(var(--lib-ui-primary-rgb) / 0.14);
  display: grid;
  place-items: center;
  padding: 18px;
}

#libApp .inst-detail[data-logo-bg="dark"] .logo-lg-wrap {
  border-color: rgb(var(--lib-ui-primary-rgb) / 0.5);
  background: linear-gradient(180deg, rgb(var(--lib-ui-primary-rgb) / 0.9), rgb(var(--lib-ui-primary-rgb) / 0.78));
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.08), 0 14px 28px rgb(var(--lib-ui-primary-rgb) / 0.28);
}

#libApp .inst-detail .logo-lg {
  width: 100%;
  height: 100%;
  object-fit: fill;
}

#libApp .inst-detail-title {
  margin: 0;
  font-size: 28px;
  line-height: 1.3;
  color: var(--lib-ui-topbar-title);
}

#libApp .inst-detail-en {
  margin: 8px 0 0;
  color: var(--lib-ui-topbar-sub);
  font-size: 13px;
  font-family: var(--lib-ui-mono);
  letter-spacing: 0.04em;
}

#libApp .inst-detail-slogan-zh {
  margin: 12px 0 0;
  color: var(--lib-ui-topbar-title);
  font-weight: 700;
}

#libApp .inst-detail-slogan-en {
  margin: 5px 0 0;
  color: var(--lib-ui-topbar-sub);
}

#libApp .inst-detail-intro {
  margin: 14px auto 0;
  color: color-mix(in srgb, var(--lib-ui-primary) 80%, #fff);
  line-height: 1.75;
  max-width: 620px;
}

#libApp .inst-world-block {
  margin: 14px auto 0;
  max-width: 620px;
  text-align: left;
  border: 1px solid rgb(var(--lib-ui-primary-rgb) / 0.22);
  border-radius: 14px;
  background: rgb(var(--lib-ui-secondary-rgb) / 0.11);
  padding: 12px 14px 10px;
}

#libApp .inst-world-title {
  margin: 0 0 8px;
  font-size: 12px;
  font-family: var(--lib-ui-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lib-ui-topbar-sub);
}

#libApp .inst-world-list {
  margin: 0;
  padding-left: 18px;
  color: color-mix(in srgb, var(--lib-ui-primary) 78%, #fff);
  font-size: 13px;
  line-height: 1.68;
}

#libApp .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
  justify-content: center;
}

#libApp .tag {
  font-size: 11px;
  color: var(--lib-ui-topbar-title);
  border: 1px solid rgb(var(--lib-ui-primary-rgb) / 0.28);
  border-radius: 999px;
  padding: 3px 8px;
  background: rgb(var(--lib-ui-secondary-rgb) / 0.18);
  font-family: var(--lib-ui-mono);
  letter-spacing: 0.02em;
}

#libApp .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
  justify-content: center;
}

#libApp .inst-detail-panel .btn-row {
  position: sticky;
  bottom: -1px;
  z-index: 8;
  margin: 16px -6px -6px;
  padding: 10px 6px 8px;
  border-top: 1px solid rgb(var(--lib-ui-primary-rgb) / 0.22);
  background:
    linear-gradient(
      180deg,
      rgb(var(--lib-ui-bg) / 0) 0%,
      rgb(var(--lib-ui-bg-2) / 0.94) 26%,
      rgb(var(--lib-ui-bg-3) / 0.98) 100%
    );
  backdrop-filter: blur(3px);
}

#libApp .inst-detail-panel .btn-row .lib-btn {
  min-height: 40px;
}

@media (max-width: 1180px) {
  #libApp .lib-stepper {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  #libApp .lib-dual,
  #libApp .lib-materials-grid,
  #libApp .lib-export-layout,
  #libApp .lib-crop-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 860px) {
  #libApp .lib-grid-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #libApp .lib-form-grid {
    grid-template-columns: 1fr;
  }

  #libApp .lib-form-grid .lib-span-2 {
    grid-column: auto;
  }

  #libApp .inst-layout {
    justify-content: center;
  }

  #libApp .inst-grid-shell {
    width: 100%;
  }

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

  #libApp .inst-detail-panel {
    width: min(680px, 94vw);
  }

  #libApp .flow-header.is-visible {
    align-items: stretch;
  }

  #libApp .flow-header-right {
    justify-content: space-between;
  }
}

@media (max-width: 560px) {
  #libApp .lib-shell {
    padding: 14px 12px 28px;
  }

  #libApp .lib-grid-cards {
    grid-template-columns: 1fr;
  }

  #libApp .lib-doc-paper {
    width: 100%;
  }

  #libApp .inst-grid {
    grid-template-columns: 1fr;
  }

  #libApp .inst-card {
    max-width: 360px;
    min-height: 208px;
  }

  #libApp .inst-detail {
    padding: 14px;
  }

  #libApp .inst-detail-panel {
    width: 100%;
    padding: 18px 16px 16px;
  }

  #libApp .inst-detail-title {
    font-size: 24px;
  }

  #libApp .hero {
    min-height: auto;
    padding: 38px 22px;
  }

  #libApp .hero .hero-main-title {
    max-width: 100%;
  }

  #libApp .hero .hero-line-welcome {
    font-size: clamp(28px, 8.2vw, 42px);
  }

  #libApp .hero .hero-line-cn {
    font-size: clamp(38px, 11vw, 56px);
  }

  #libApp .hero .hero-line-cn .hero-cn-main,
  #libApp .hero .hero-line-cn .hero-cn-sub {
    display: block;
    white-space: normal;
    word-break: break-word;
  }

  #libApp .hero .hero-line-cn .hero-cn-sub {
    margin-left: 0;
    margin-top: 0.06em;
  }

  #libApp .hero .hero-sub-en,
  #libApp .hero .hero-status,
  #libApp .hero .tip,
  #libApp .hero .hero-brief,
  #libApp .hero .hero-brief-cta,
  #libApp .hero .disclaimer.weak {
    max-width: 100%;
    width: 100%;
  }

  #libApp .flow-header-right {
    flex-direction: column;
    align-items: stretch;
  }

  #libApp .flow-header-right .lib-toolbar {
    width: 100%;
  }
}

/* Institution list breakpoints keep parity with index layout. */
@media (max-width: 1120px) {
  #libApp .inst-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  #libApp .inst-layout {
    justify-content: center;
  }

  #libApp .inst-grid-shell {
    width: min(860px, 100%);
  }

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

@media (max-width: 680px) {
  #libApp .hero {
    width: calc(100% - 24px);
    margin-left: auto;
    margin-right: auto;
  }

  #libApp .inst-layout {
    width: calc(100% - 24px);
    margin-left: auto;
    margin-right: auto;
  }

  #libApp .inst-detail {
    align-items: flex-start;
    overflow-y: auto;
    padding: 12px;
  }

  #libApp .inst-detail-panel {
    width: 100%;
    max-height: calc(100vh - 24px);
    padding: 18px 14px 16px;
  }

  #libApp .inst-detail-panel .btn-row .lib-btn {
    flex: 1 1 140px;
  }

  #libApp .inst-grid {
    grid-template-columns: 1fr;
  }

  #libApp .inst-card {
    max-width: 360px;
    min-height: 208px;
  }
}