:root {
  --bg: #f7f8f5; --surface: #fff; --surface-muted: #edf1eb; --text: #1b2924;
  --text-soft: #56635b; --line: #dce3db; --brand: #173c35; --brand-hover: #28584a;
  --accent: #895832; --focus: #086581; --radius-sm: .5rem; --radius-md: .75rem;
  --content-width: 76rem;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text); background: var(--bg); font-synthesis: none; text-rendering: optimizeLegibility;
}
* { box-sizing: border-box; }
html { min-width: 20rem; scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; }
body.has-player { padding-bottom: calc(8rem + env(safe-area-inset-bottom)); }
button, input, select, audio { font: inherit; }
button, select { color: inherit; }
button, summary { -webkit-tap-highlight-color: transparent; cursor: pointer; }
button, select, input { min-height: 2.75rem; }
button:focus-visible, summary:focus-visible, select:focus-visible, input:focus-visible, audio:focus-visible, a:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
h1, h2, h3, p { overflow-wrap: anywhere; }
button { touch-action: manipulation; }
.skip-link { position: fixed; z-index: 100; top: .5rem; left: .5rem; padding: .75rem; color: white; background: var(--brand); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.site-header { border-bottom: 1px solid var(--line); background: var(--surface); }
.header-inner, .page-shell, .player-inner { width: min(100% - 1.5rem, var(--content-width)); margin-inline: auto; }
.header-inner { min-height: 3rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .75rem; color: var(--brand); text-decoration: none; font-weight: 750; }
.brand-mark { display: flex; align-items: center; justify-content: center; gap: 3px; width: 2rem; height: 2rem; border-radius: .5rem; background: var(--brand); }
.brand-mark span { width: 2px; background: white; height: .5rem; }
.brand-mark span:nth-child(2) { height: 1rem; }
.brand-mark span:nth-child(3) { height: .75rem; }
.header-note { font-size: .75rem; color: var(--text-soft); }
.page-shell { padding-block: .625rem 1.5rem; }
.library-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: .375rem; }
h1 { margin: 0; font-size: clamp(1.25rem, 3vw, 2rem); line-height: 1.4; letter-spacing: -.025em; font-weight: 720; }
.library-summary { display: flex; gap: .75rem; font-size: .75rem; color: var(--text-soft); margin: 0; }
#total-duration { display: none; }
.library-layout { display: grid; gap: .625rem; }
.library, .library-sidebar { min-width: 0; }
.view-nav { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-bottom: 1px solid var(--line); }
.view-nav button { position: relative; border: 0; border-bottom: 2px solid transparent; padding: .5rem .25rem; background: transparent; font-size: .875rem; color: var(--text-soft); }
.view-nav button[aria-pressed=true] { border-color: var(--brand); color: var(--brand); font-weight: 750; }
#continue-count, #finished-count { margin-left: .25rem; font-size: .6875rem; }
.sidebar-note { display: none; }
.catalog-tools { display: grid; gap: .375rem; }
.search-field { display: flex; align-items: center; gap: .5rem; padding: 0 .875rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.search-field:focus-within { border-color: var(--focus); }
.search-field svg { width: 1.25rem; height: 1.25rem; fill: none; stroke: var(--text-soft); stroke-width: 1.6; flex-shrink: 0; }
.search-field input { width: 100%; min-width: 0; border: 0; color: var(--text); background: transparent; font-size: .9375rem; padding-block: .5rem; }
input::placeholder { color: var(--text-soft); }
.filter-bar { display: flex; align-items: flex-start; gap: .75rem; justify-content: space-between; }
.category-field select { max-width: 10rem; padding: .5rem .75rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: .8125rem; }
.advanced-filters { position: relative; margin-left: auto; font-size: .8125rem; }
.advanced-filters > summary { padding: .75rem .25rem; min-height: 2.75rem; color: var(--text-soft); }
.filter-fields { position: absolute; top: calc(100% + .5rem); right: 0; width: min(18rem, calc(100vw - 2rem)); z-index: 5; padding: 1rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); box-shadow: 0 .5rem 2rem #173c3514; display: grid; gap: .75rem; }
.filter-fields label { display: grid; gap: .375rem; color: var(--text-soft); }
.filter-fields select { width: 100%; border: 1px solid var(--line); background: var(--bg); padding: .5rem; border-radius: .375rem; }
.filter-fields button { background: transparent; border: 0; text-align: left; color: var(--brand); padding: 0; }
.section-heading { display: flex; gap: 1rem; align-items: flex-end; justify-content: space-between; margin: .5rem 0 .375rem; }
h2 { margin: 0; font-size: 1.125rem; line-height: 1.5; font-weight: 720; scroll-margin-top: 1rem; }
.search-status { flex-shrink: 0; color: var(--text-soft); font-size: .75rem; padding-bottom: .1875rem; }
.text-button { border: 0; background: transparent; color: var(--brand); font-size: .8125rem; padding: .5rem 0; text-decoration: underline; text-underline-offset: .25rem; }
.show-description { color: var(--text-soft); font-size: .875rem; line-height: 1.8; }
.episode-list { list-style: none; margin: 0; padding: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); overflow: clip; }
.episode-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: .625rem; padding: .625rem .75rem; border-bottom: 1px solid var(--line); }
.episode-card:last-child { border-bottom: 0; }
.episode-card.is-current { background: #edf5ee; box-shadow: inset 3px 0 var(--brand); }
.episode-main { min-width: 0; }
.episode-show { display: block; max-width: 100%; border: 0; background: transparent; text-align: left; color: var(--brand); font-size: .75rem; padding: 0; margin-bottom: .125rem; min-height: 1.5rem; }
.episode-title { font-size: .9375rem; font-weight: 650; line-height: 1.55; list-style: none; min-height: 2.75rem; }
.episode-title::-webkit-details-marker { display: none; }
.title-text { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.episode-details[open] .title-text { -webkit-line-clamp: unset; }
.episode-title:hover { color: var(--brand-hover); }
.details-hint { display: inline-block; margin-top: .125rem; color: var(--text-soft); font-size: .6875rem; font-weight: 400; line-height: 1.4; }
.details-hint::after { content: ' ↓'; }
.episode-details[open] .details-hint::after { content: ' ↑'; }
.episode-detail-body { margin-top: .75rem; padding-left: .75rem; border-left: 2px solid var(--line); }
.full-title { font-weight: 650; font-size: .875rem; margin-top: 0; }
.full-description { font-size: .875rem; line-height: 1.85; white-space: pre-line; }
.original-title, .model-detail { color: var(--text-soft); font-size: .75rem; line-height: 1.65; }
.episode-meta { display: flex; flex-wrap: wrap; gap: .375rem .75rem; color: var(--text-soft); font-size: .6875rem; margin-top: .25rem; }
.episode-action { align-self: center; min-width: 3.25rem; padding: .5rem .625rem; border: 1px solid var(--line); border-radius: 2rem; background: transparent; color: var(--brand); font-size: .75rem; font-weight: 650; }
.episode-action:hover { background: var(--surface-muted); border-color: var(--brand); }
.episode-actions { display: flex; flex-direction: column; justify-content: center; align-items: stretch; gap: .375rem; }
.visibility-action { border: 1px solid #bac5bf; border-radius: .5rem; background: var(--surface); color: var(--text-soft); font-size: .75rem; padding: .5rem .625rem; }
.visibility-action:hover { border-color: var(--brand); color: var(--brand); }
.visibility-action:disabled { cursor: wait; }
.episode-card.is-hidden { background: #f0f1f2; color: #51585d; }
.episode-card.is-hidden .episode-show { color: #51585d; }
.episode-card.is-hidden.is-current { box-shadow: inset 3px 0 #69737a; }
.visibility-label { color: #414950; background: #dfe3e6; padding: .125rem .375rem; border-radius: .25rem; font-weight: 650; }
.admin-toolbar { margin-bottom: .75rem; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .625rem .75rem; background: var(--surface-muted); }
.admin-toolbar-heading, .admin-toolbar-actions, .user-filter-bar { display: flex; justify-content: space-between; align-items: center; gap: .5rem; }
.admin-toolbar-heading strong { font-size: .8125rem; }
.admin-toolbar p, .management-help { color: var(--text-soft); font-size: .75rem; line-height: 1.7; margin: .25rem 0 .5rem; }
.admin-toolbar select, #user-status-filter { border: 1px solid #bac5bf; border-radius: .5rem; padding: .375rem .625rem; background: var(--surface); font-size: .8125rem; }
.admin-feedback { color: var(--text-soft); font-size: .8125rem; line-height: 1.6; }
.admin-feedback:empty { display: none; }
.is-current .episode-action { background: var(--brand); color: white; border-color: var(--brand); }
.episode-progress { grid-column: 1 / -1; display: flex; align-items: center; gap: .625rem; margin-top: .375rem; }
.episode-progress progress { height: .1875rem; flex: 1; min-width: 0; appearance: none; border: 0; background: var(--surface-muted); }
progress::-webkit-progress-bar { background: var(--surface-muted); }
progress::-webkit-progress-value { background: var(--brand); }
progress::-moz-progress-bar { background: var(--brand); }
.episode-progress-label { font-size: .6875rem; color: var(--text-soft); }
.show-list { display: grid; gap: 1rem; }
.show-card { display: flex; flex-direction: column; align-items: flex-start; gap: .75rem; padding: 1.25rem; text-align: left; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); min-width: 0; }
.show-card:hover { border-color: var(--brand); }
.show-card-meta { display: flex; justify-content: space-between; gap: 1rem; width: 100%; color: var(--text-soft); font-size: .6875rem; }
.topic-label { color: var(--accent); }
.show-card-title { font-size: 1.125rem; line-height: 1.6; overflow-wrap: anywhere; }
.show-original { color: var(--text-soft); font-size: .75rem; line-height: 1.7; }
.show-card-description { color: var(--text-soft); font-size: .8125rem; line-height: 1.8; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.show-open { color: var(--brand); font-size: .75rem; margin-top: auto; padding-top: .25rem; }
.load-more { display: block; width: 100%; background: transparent; border: 1px solid var(--line); border-radius: var(--radius-sm); margin-top: 1rem; color: var(--brand); font-size: .8125rem; }
.catalog-state { display: grid; gap: 1rem; }
.skeleton-row { height: 8rem; background: var(--surface-muted); border-radius: var(--radius-md); animation: loading 1.5s ease-in-out infinite alternate; }
.catalog-message { padding: 2.5rem 1.5rem; text-align: center; background: var(--surface); border: 1px dashed var(--line); border-radius: var(--radius-md); color: var(--text-soft); font-size: .875rem; line-height: 1.8; }
.updated-at { text-align: right; color: var(--text-soft); font-size: .6875rem; margin: 1rem 0; }
.privacy-note { color: var(--text-soft); text-align: center; font-size: .6875rem; line-height: 1.8; margin-top: 2rem; }
.player-shell {
  position: fixed;
  z-index: 20;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 0.875rem 0 calc(0.875rem + env(safe-area-inset-bottom));
  border-top: 0.0625rem solid #46655e;
  color: #fff;
  background: var(--brand);
  box-shadow: 0 -0.5rem 2rem #14252120;
  border-radius: 1.25rem 1.25rem 0 0;
}

.player-inner {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 0;
  max-width: 48rem;
  max-height: calc(100dvh - 4rem - env(safe-area-inset-bottom));
}

.player-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
}

button.now-playing {
  flex: 1;
  position: relative;
  padding: 0.5rem 0;
  border: 0;
  color: inherit;
  background: transparent;
  text-align: left;
  cursor: pointer;
  touch-action: pan-x;
  user-select: none;
}

.drawer-grip {
  width: 2rem;
  height: 0.1875rem;
  margin: -0.375rem auto 0.375rem;
  border-radius: 1rem;
  background: #90aaa2;
}

.mini-toggle,
.seek-controls button {
  min-width: 3rem;
  min-height: 3rem;
  border: 1px solid #78978d;
  border-radius: 50%;
  color: white;
  background: #285348;
  cursor: pointer;
}

.player-panel {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto auto;
  min-height: 0;
  max-height: min(68dvh, 38rem);
  padding-top: 0.5rem;
  animation: panel-in 160ms ease-out;
}
.player-info { overflow-y: auto; overscroll-behavior: contain; min-height: 0; }

.player-meta {
  margin: 0.5rem 0;
  color: #bed4cb;
  font-size: 0.75rem;
  line-height: 1.6;
}

.player-description {
  margin: 0.75rem 0 1.25rem;
  color: #f5f5e9;
  font-size: 0.9375rem;
  line-height: 1.8;
  white-space: pre-line;
}

.seek-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  padding-block: 0.25rem 0.875rem;
}

.seek-controls button {
  width: 3.5rem;
  height: 3.5rem;
  font-size: 1rem;
}

.seek-controls button span {
  display: block;
  font-size: 0.625rem;
}

.seek-controls button:disabled { opacity: 0.45; cursor: wait; }
.seek-caption { color: #c7d6d2; font-size: 0.75rem; }
.is-expanded .now-playing strong { white-space: normal; line-height: 1.5; max-height: 4.5em; overflow: auto; }
.is-expanded .player-bar { border-bottom: 1px solid #46655e; padding-bottom: 0.5rem; }
@keyframes panel-in {
  from { opacity: 0; transform: translateY(0.5rem); }
  to { opacity: 1; transform: translateY(0); }
}

.now-playing {
  display: grid;
  min-width: 0;
  gap: 0.125rem;
}

.now-label {
  color: #f4b69f;
  font-size: .6875rem;
}

.now-playing strong,
.now-playing span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.now-playing strong {
  font-size: 0.9375rem;
}

.now-playing span:last-child {
  color: #c7d6d2;
  font-size: 0.75rem;
}

.player-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
}

.player-controls audio {
  display: block;
  width: 100%;
  min-width: 0;
  height: 3.5rem;
}

.rate-control {
  display: grid;
  gap: 0.125rem;
  color: #c7d6d2;
  font-size: 0.6875rem;
}

.rate-control select {
  min-width: 4.25rem;
  min-height: 3.5rem;
  padding-inline: 0.5rem;
  border: 0.0625rem solid #6e8781;
  border-radius: var(--radius-sm);
  color: #fff;
  background: #224b43;
}

.visually-hidden {
  position: absolute !important;
  width: 0.0625rem !important;
  height: 0.0625rem !important;
  padding: 0 !important;
  margin: -0.0625rem !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

[hidden] {
  display: none !important;
}

@keyframes loading {
  from { background-position: 100% 0; }
  to { background-position: -100% 0; }
}


@media (min-width: 48rem) {
  .header-inner, .page-shell { width: min(100% - 4rem, var(--content-width)); }
  .page-shell { padding-block: 3rem; }
  .library-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; margin-bottom: 2.5rem; }
  .library-summary { flex-direction: column; text-align: right; gap: .25rem; flex-shrink: 0; padding-bottom: .25rem; }
  #total-duration { display: inline; }
  .library-layout { grid-template-columns: 10rem minmax(0, 1fr); gap: 2.5rem; }
  .view-nav { display: flex; flex-direction: column; border: 0; gap: .375rem; }
  .view-nav button { border: 0; border-radius: var(--radius-sm); padding: .875rem 1rem; text-align: left; }
  .view-nav button[aria-pressed=true] { background: var(--brand); color: white; }
  .sidebar-note { display: block; margin-top: 2rem; color: var(--text-soft); font-size: .75rem; line-height: 2; padding-inline: 1rem; }
  .show-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .episode-card { padding: 1.5rem; gap: 1.5rem; }
  .episode-title { font-size: 1rem; }
  .title-text { -webkit-line-clamp: 2; }
  .episode-action { min-width: 4.25rem; }
}
@media (max-width: 22.5rem) {
  .view-nav button { font-size: .8125rem; padding-inline: .125rem; }
  .header-note { display: none; }
  .episode-card { padding: .625rem; }
  .player-controls { grid-template-columns: minmax(0, 1fr); }
  .rate-control { grid-template-columns: auto auto; align-items: center; justify-self: end; gap: .375rem; }
  .section-heading { gap: .5rem; }
}
@media (max-width: 47.99rem) {
  body.has-player { padding-bottom: calc(4.5rem + env(safe-area-inset-bottom)); }
  .show-card { padding: .875rem; gap: .5rem; }
  .show-card-title { font-size: 1rem; }
  .player-shell { padding: .375rem 0 calc(.375rem + env(safe-area-inset-bottom)); border-radius: .75rem .75rem 0 0; }
  .player-bar { gap: .625rem; }
  .mini-toggle { min-width: 2.75rem; min-height: 2.75rem; font-size: .75rem; }
  .player-shell:not(.is-expanded) .now-playing { grid-template-columns: minmax(0, 1fr) auto; column-gap: .5rem; align-content: center; min-height: 2.75rem; padding: 0; }
  .player-shell:not(.is-expanded) .drawer-grip { display: none; }
  .player-shell:not(.is-expanded) #player-title { grid-row: 1; grid-column: 1 / -1; font-size: .875rem; line-height: 1.5; }
  .player-shell:not(.is-expanded) #player-show { grid-row: 2; grid-column: 1; line-height: 1.5; }
  .player-shell:not(.is-expanded) .now-label { grid-row: 2; grid-column: 2; align-self: center; }
  .player-shell:not(.is-expanded) #player-panel-hint { font-size: .6875rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .skeleton-row, .player-panel { animation: none; }
}
/* Account controls share the library's native, keyboard-accessible layout. */
#account-dialog, #users-dialog { color: #183c35; background: #fafbf8; border: 1px solid #ccd6cc; border-radius: 16px; width: min(620px, calc(100vw - 32px)); max-height: 85dvh; padding: 24px; overflow: auto; }
#account-dialog::backdrop, #users-dialog::backdrop { background: #102b2699; }
.account-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
#account-form { display: grid; gap: 16px; }
#account-form label { display: grid; gap: 6px; }
#account-form input { width: 100%; box-sizing: border-box; padding: 12px; border: 1px solid #84988e; border-radius: 8px; background: white; color: #183c35; font-size: 16px; }
#account-dialog button, #users-dialog button { min-height: 44px; padding: 8px 12px; cursor: pointer; border: 1px solid #bac5bf; border-radius: 8px; background: white; color: #183c35; }
#account-dialog button:disabled, #users-dialog button:disabled { color: #59665f; cursor: wait; }
#account-dialog [hidden] { display: none; }
#admin-list { padding: 0; list-style: none; }
#admin-section { margin-top: 1rem; }
#admin-list li { display: grid; gap: .625rem; border-bottom: 1px solid #ccd6cc; padding: 12px 0; }
#admin-list li strong { overflow-wrap: anywhere; font-size: .875rem; }
#admin-list li p { margin: .375rem 0; font-size: .8125rem; color: var(--text-soft); }
#admin-list li small, .user-actions span { color: var(--text-soft); font-size: .75rem; }
#admin-list li.user-disabled { background: #f0f1f2; }
.user-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.user-filter-bar { margin-top: .5rem; }
#users-message { font-size: .8125rem; }
#admin-search { display: block; width: 100%; padding: 10px; margin-top: 8px; font-size: 16px; box-sizing: border-box; }
#admin-list button { flex-shrink: 0; }