:root {
  --bg: #f6f1e7;
  --card: #fffcf6;
  --ink: #2a241f;
  --muted: #7b6f63;
  --line: #e7dccb;
  --accent: #8c2f1b;       /* kāṣāya robe red */
  --accent-soft: #f3e2d9;
  --gold: #b7791f;
  --good: #2f7a4b;
  --good-soft: #e3f1e6;
  --bad: #b23b35;
  --bad-soft: #f8e3e1;
  --new: #b9ada0;
  --learning: #d28a2e;
  --mastered: #2f7a4b;
  --retired: #6f8fa8;
  --serif: 'Noto Serif', 'Iowan Old Style', 'Palatino', 'Times New Roman', serif;
  --serif-zh: 'Noto Serif', 'Noto Serif TC', 'Songti TC', 'PMingLiU', serif; /* Latin glyphs (IAST) from Noto Serif, CJK from Noto Serif TC */
  --deva: 'Noto Serif Devanagari', 'Kohinoor Devanagari', serif;
  --sans: system-ui, -apple-system, 'Segoe UI', 'PingFang TC', 'Noto Sans TC', sans-serif;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(60, 40, 20, 0.06), 0 4px 16px rgba(60, 40, 20, 0.05);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17130f;
    --card: #211c17;
    --ink: #efe6d8;
    --muted: #a3968a;
    --line: #3a3129;
    --accent: #e08a62;
    --accent-soft: #3a2519;
    --gold: #d9a441;
    --good: #6cc08b;
    --good-soft: #1d3325;
    --bad: #ef7d74;
    --bad-soft: #3d201e;
    --new: #6d6258;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  padding-bottom: calc(68px + env(safe-area-inset-bottom));
  overflow-x: hidden;
}
body.noscroll { overflow: hidden; }
a { color: var(--accent); text-decoration: none; }
button { font: inherit; color: inherit; }
[lang='zh-Hant'] { font-family: var(--serif-zh); }
.boot { display: grid; place-items: center; height: 80vh; font-size: 48px; color: var(--accent); opacity: 0.5; }

/* ---------- shell ---------- */
header.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 10px;
  padding: calc(8px + env(safe-area-inset-top)) 16px 8px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
header.top .title { font-family: var(--serif-zh); font-weight: 600; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
header.top .title small { font-family: var(--serif); font-weight: 400; color: var(--muted); font-size: 12px; margin-left: 4px; }
.logo { color: var(--accent); font-size: 22px; }
.back { background: none; border: 0; font-size: 30px; line-height: 1; padding: 0 6px 4px 0; color: var(--accent); cursor: pointer; }
.sync-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--new); }
.sync-dot.s-idle { background: var(--good); }
.sync-dot.s-syncing { background: var(--gold); animation: pulse 1s infinite alternate; }
.sync-dot.s-error { background: var(--bad); }
.sync-dot.s-disabled { display: none; }
@keyframes pulse { to { opacity: 0.3; } }

main { max-width: 680px; margin: 0 auto; }
.page { padding: 14px 16px 24px; }

nav.tabs {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 10;
  display: flex; justify-content: space-around;
  background: var(--card);
  border-top: 1px solid var(--line);
  padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
}
nav.tabs a { flex: 1; display: flex; flex-direction: column; align-items: center; color: var(--muted); font-size: 12px; line-height: 1.2; padding: 2px 0; }
nav.tabs a .ic { font-size: 19px; line-height: 1.2; filter: grayscale(1); opacity: 0.7; }
nav.tabs a .te { font-size: 10px; }
nav.tabs a.on { color: var(--accent); font-weight: 600; }
nav.tabs a.on .ic { filter: none; opacity: 1; }

/* ---------- generic ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
  display: block;
  color: inherit;
}
h1 { font-size: 22px; line-height: 1.35; margin: 4px 0 8px; font-family: var(--serif-zh); }
h2 { font-size: 18px; margin: 0 0 10px; font-family: var(--serif-zh); }
h3 { font-size: 13px; letter-spacing: 0.04em; color: var(--muted); margin: 22px 0 8px; font-weight: 600; text-transform: uppercase; }
.sec-title { margin: 20px 4px 10px; font-size: 15px; color: var(--muted); }
.eyebrow { font-size: 12px; color: var(--muted); letter-spacing: 0.04em; margin-bottom: 6px; }
.small { font-size: 13px; }
.muted { color: var(--muted); }
.center { text-align: center; display: block; }
.row { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
.lbl-en { font-size: 0.78em; opacity: 0.75; margin-left: 0.4em; font-family: var(--sans); }
.bi .en { display: inline; color: var(--muted); font-size: 0.9em; font-family: var(--serif); }
div.bi > .en { display: block; margin-top: 2px; }
.skt, .skt-big, .en-big { font-family: var(--serif); }
.empty { text-align: center; color: var(--muted); padding: 24px 8px; }
.warn { color: var(--bad); font-size: 14px; }
.ok-msg { color: var(--good); font-size: 14px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 44px; padding: 8px 16px;
  border-radius: 12px; border: 1px solid var(--line);
  background: var(--card); color: var(--ink);
  cursor: pointer; text-align: center; font-weight: 500;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(0.98); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
@media (prefers-color-scheme: dark) { .btn.primary { color: #1b120c; } }
.btn.primary .lbl-en { opacity: 0.85; }
.btn.ghost { background: transparent; }
.btn.small { min-height: 34px; padding: 4px 12px; font-size: 14px; }
.btn.big { min-height: 58px; font-size: 18px; width: 100%; border-radius: 16px; }
.btn.wide { width: 100%; margin-top: 10px; }
.btn.danger { color: var(--bad); }
.btn[disabled] { opacity: 0.5; cursor: default; }
.link { background: none; border: 0; color: var(--accent); cursor: pointer; font-weight: 600; }

.segs { display: inline-flex; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 3px; margin-bottom: 10px; }
.segs.wide { display: flex; }
.segs.wide .seg { flex: 1; }
.seg { border: 0; background: transparent; padding: 6px 12px; border-radius: 8px; cursor: pointer; font-size: 14px; color: var(--muted); }
.seg.on { background: var(--card); color: var(--ink); box-shadow: var(--shadow); font-weight: 600; }

.badge { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 999px; background: var(--bg); border: 1px solid var(--line); color: var(--muted); }
.badge.st-learning { color: var(--learning); border-color: currentColor; }
.badge.st-mastered { color: var(--mastered); border-color: currentColor; }
.badge.st-retired { color: var(--retired); border-color: currentColor; }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; background: var(--new); }
.dot.st-learning { background: var(--learning); }
.dot.st-mastered { background: var(--mastered); }
.dot.st-retired { background: var(--retired); }

.chips, .chips-sec { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chip { display: inline-block; font-size: 13px; padding: 3px 10px; border-radius: 999px; background: var(--bg); border: 1px solid var(--line); color: var(--ink); font-family: var(--serif-zh); }
.chip.list { color: var(--accent); }
.chip.st-learning { border-color: var(--learning); }
.chip.st-mastered, .chip.st-retired { border-color: var(--mastered); background: var(--good-soft); }

.field { display: block; margin: 10px 0; }
.field > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.field small { opacity: 0.8; }
input, textarea {
  width: 100%; font: inherit; font-size: 17px; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 12px; outline: none;
}
input:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field.inline { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.field.inline > span { margin: 0; flex: 1; color: var(--ink); font-size: 14px; }
.field.inline input { width: 84px; text-align: center; }
.field.ok input { border-color: var(--good); background: var(--good-soft); }
.field.bad input { border-color: var(--bad); background: var(--bad-soft); }
.toggle { display: flex; gap: 10px; align-items: center; margin: 12px 0 4px; font-size: 14px; cursor: pointer; }
.toggle input { width: 20px; height: 20px; accent-color: var(--accent); }
.file-btn { position: relative; overflow: hidden; }
.file-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

/* ---------- home ---------- */
.today { display: flex; gap: 16px; align-items: center; }
.ring { width: 92px; height: 92px; flex: none; }
.ring-bg { fill: none; stroke: var(--line); stroke-width: 8; }
.ring-fg { fill: none; stroke: var(--accent); stroke-width: 8; stroke-linecap: round; transition: stroke-dasharray 0.6s; }
.ring-n { font: 600 22px var(--serif); fill: var(--ink); }
.ring-g { font: 12px var(--sans); fill: var(--muted); }
.streak { font-size: 18px; }
.start { margin-bottom: 14px; }
.quick { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 8px; }
.quick .btn { flex-direction: column; gap: 0; line-height: 1.2; font-size: 15px; }
.quick .lbl { display: flex; flex-direction: column; }
.quick .lbl-en { margin: 0; }
.start .small.center { margin-top: 10px; }
.list-mini { display: block; padding: 10px 0; border-top: 1px solid var(--line); color: inherit; }
.list-mini:first-of-type { border-top: 0; }
.list-mini > span { display: block; margin-bottom: 6px; }
.lp { width: 100%; }
.lp-bar { height: 7px; border-radius: 4px; background: var(--line); overflow: hidden; display: flex; }
.lp-m { background: var(--mastered); }
.lp-l { background: var(--learning); }
.lp-txt { font-size: 11px; color: var(--muted); margin-top: 3px; }

/* ---------- quotes / md ---------- */
.quote { margin: 12px 0; padding: 10px 14px; border-left: 3px solid var(--gold); background: color-mix(in srgb, var(--gold) 7%, transparent); border-radius: 0 10px 10px 0; }
.quote blockquote { margin: 0; font-family: var(--serif-zh); font-size: 17px; line-height: 1.8; }
.quote figcaption { font-size: 13px; color: var(--muted); margin-top: 6px; }
.quote .src-en { font-style: italic; font-family: var(--serif); }
.quote .qnote { margin: 8px 0 0; font-size: 14px; font-family: var(--serif); color: var(--ink); opacity: 0.9; }
.cbeta { white-space: nowrap; }
.md p, .md li { margin: 0 0 10px; }
.md.zh { font-family: var(--serif-zh); font-size: 16.5px; line-height: 1.85; }
.md.en-text { font-family: var(--serif); font-size: 16px; }
.md.zh + .md.en-text { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--line); }
.md ol, .md ul { padding-left: 1.3em; margin: 0 0 10px; }
.md strong { color: var(--accent); font-weight: 600; }

/* ---------- term ---------- */
.term-head { text-align: center; padding: 6px 0 4px; }
.skt-big { font-size: 34px; font-weight: 600; line-height: 1.2; letter-spacing: 0.01em; }
.deva { font-family: var(--deva); font-size: 20px; color: var(--muted); margin-top: 2px; }
.zh-big { font-family: var(--serif-zh); font-size: 34px; font-weight: 600; color: var(--accent); margin-top: 6px; line-height: 1.3; }
.en-big { font-size: 20px; font-style: italic; margin-top: 2px; }
.meta { font-size: 13px; color: var(--muted); display: flex; justify-content: center; flex-wrap: wrap; gap: 4px 14px; margin-top: 6px; }
.root { font-size: 13px; color: var(--muted); margin-top: 6px; }
.status-box { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin: 14px 0; padding: 10px 12px; background: var(--bg); border-radius: 10px; }
.status-box .btn { margin-left: auto; }
.short { font-size: 17px; margin: 12px 0; }
.short .en { font-size: 15px; }
.schools { margin: 0; }
.schools dt { font-weight: 600; font-size: 14px; margin-top: 10px; }
.schools dd { margin: 2px 0 0; font-size: 15px; }
.mnemonic { background: var(--accent-soft); border-radius: 10px; padding: 4px 14px 12px; margin-top: 18px; }
.mnemonic h3 { margin-top: 12px; }
.cmp-card { display: block; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; margin: 8px 0; color: inherit; background: var(--card); }
.note { font-size: 15px; }
.term-foot { margin-top: 22px; text-align: center; }

/* ---------- compare ---------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 12px -4px; }
.cmp-table, .preview { border-collapse: collapse; font-size: 14px; min-width: 100%; }
.cmp-table th, .cmp-table td { border: 1px solid var(--line); padding: 8px; vertical-align: top; text-align: left; min-width: 110px; }
.cmp-table thead th { background: var(--accent-soft); font-family: var(--serif-zh); }
.cmp-table tbody th { background: var(--bg); font-weight: 600; min-width: 72px; }
.cmp-table .en { display: block; color: var(--muted); font-size: 12.5px; margin-top: 2px; font-family: var(--serif); }
.preview td, .preview th { padding: 4px 8px; border-bottom: 1px solid var(--line); text-align: left; }
.preview tr.dup, .preview tr.invalid { opacity: 0.45; }

/* ---------- browse ---------- */
.search { position: sticky; top: 56px; z-index: 5; margin: 0 -16px 10px; padding: 0 16px 8px; background: var(--bg); }
.list-card.off { opacity: 0.6; }
.list-title { font-weight: 600; font-family: var(--serif-zh); margin-bottom: 6px; display: flex; flex-wrap: wrap; gap: 6px; align-items: baseline; }
.term-row { display: flex; align-items: center; gap: 10px; padding: 10px 2px; border-bottom: 1px solid var(--line); color: inherit; min-width: 0; }
.term-row:last-child { border-bottom: 0; }
.term-row .skt { font-weight: 600; min-width: 0; }
.term-row .zh { font-family: var(--serif-zh); color: var(--accent); }
.term-row .en { color: var(--muted); font-size: 14px; margin-left: auto; text-align: right; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.numbered { display: flex; align-items: center; gap: 6px; }
.numbered .num { width: 20px; text-align: center; color: var(--muted); font-size: 13px; flex: none; }
.numbered .term-row { flex: 1; }
details summary { cursor: pointer; font-weight: 600; }

/* ---------- session ---------- */
.session { padding-top: calc(10px + env(safe-area-inset-top)); }
.session-top { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.session-top .close { font-size: 30px; line-height: 1; color: var(--muted); padding: 0 4px 4px; }
.pbar { flex: 1; height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; }
.pbar span { display: block; height: 100%; background: var(--accent); transition: width 0.3s; }
.count { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.question, .intro { text-align: center; }
.intro .short, .intro .quote, .intro .mnemonic { text-align: left; }
.intro h2 { margin-top: 4px; }
.ask .skt-big, .ask .zh-big { margin: 8px 0 2px; }
.prompt-en { font-size: 26px; margin: 12px 0; }
.opts { display: grid; gap: 10px; margin-top: 18px; text-align: left; }
.opts.tf { grid-template-columns: 1fr 1fr; }
.opt {
  display: flex; align-items: center; gap: 12px;
  min-height: 56px; padding: 10px 14px;
  border: 1.5px solid var(--line); border-radius: 12px;
  background: var(--card); cursor: pointer; text-align: left; font-size: 17px;
  -webkit-tap-highlight-color: transparent;
}
.opts.tf .opt { justify-content: center; font-size: 18px; }
.opt .key { font-size: 12px; color: var(--muted); border: 1px solid var(--line); border-radius: 6px; width: 22px; height: 22px; display: grid; place-items: center; flex: none; }
.opt .zh { font-family: var(--serif-zh); font-size: 20px; }
.opt .skt { font-size: 19px; }
.opt.right { border-color: var(--good); background: var(--good-soft); }
.opt.wrong { border-color: var(--bad); background: var(--bad-soft); }
.opt.dim { opacity: 0.5; }
.opt[disabled] { cursor: default; color: inherit; }
.cloze { font-family: var(--serif-zh); font-size: 19px; line-height: 1.9; margin: 12px 0 4px; text-align: left; }
.cmp-q { font-size: 18px; margin: 10px 0 0; text-align: left; line-height: 1.6; }
.question .field { text-align: left; }
.feedback { margin-top: 18px; padding: 14px; border-radius: 12px; text-align: left; animation: rise 0.18s ease-out; }
@keyframes rise { from { transform: translateY(6px); opacity: 0; } }
.feedback.good { background: var(--good-soft); }
.feedback.bad { background: var(--bad-soft); }
.verdict { font-weight: 700; font-size: 17px; margin-bottom: 6px; }
.feedback.good .verdict { color: var(--good); }
.feedback.bad .verdict { color: var(--bad); }
.corr { margin: 6px 0 10px; line-height: 1.9; }
.corr .alt { color: var(--muted); font-size: 13px; }
.mini { font-size: 15px; }
.mini .skt { font-weight: 600; }
.explain { font-size: 15px; }
.fb-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; align-items: center; }
.summary .card { text-align: center; }
.big-emoji { font-size: 48px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; margin: 12px 0; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px; text-align: center; box-shadow: var(--shadow); }
.summary .tile { box-shadow: none; background: var(--bg); }
.tile b { display: block; font-size: 22px; font-family: var(--serif); }
.tile span { font-size: 12px; color: var(--muted); }
.promoted { background: var(--accent-soft); border-radius: 10px; padding: 10px; margin: 10px 0; }
.goal-line { font-size: 15px; }
.session-empty { text-align: center; padding-top: 40px; }

/* ---------- sheet ---------- */
.sheet-bg { position: fixed; inset: 0; z-index: 50; background: rgba(20, 14, 8, 0.45); display: flex; align-items: flex-end; justify-content: center; }
.sheet {
  position: relative; width: 100%; max-width: 680px; max-height: 92vh; overflow-y: auto;
  background: var(--card); border-radius: 18px 18px 0 0; padding: 18px 16px calc(24px + env(safe-area-inset-bottom));
  animation: up 0.2s ease-out;
}
@keyframes up { from { transform: translateY(30px); opacity: 0.4; } }
.sheet-x { position: sticky; top: 0; float: right; z-index: 2; width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line); background: var(--card); font-size: 22px; line-height: 1; cursor: pointer; }

/* ---------- progress ---------- */
.heatmap { display: grid; grid-template-rows: repeat(7, 1fr); grid-auto-flow: column; gap: 3px; margin: 8px 0; }
.hm { aspect-ratio: 1; border-radius: 3px; background: var(--line); }
.hm.l1 { background: color-mix(in srgb, var(--accent) 25%, var(--line)); }
.hm.l2 { background: color-mix(in srgb, var(--accent) 50%, var(--line)); }
.hm.l3 { background: color-mix(in srgb, var(--accent) 75%, var(--line)); }
.hm.l4 { background: var(--accent); }
.hm.lf { background: transparent; }
.status-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }

/* ---------- add ---------- */
.fmt { font-size: 12.5px; background: var(--bg); padding: 10px; border-radius: 8px; overflow-x: auto; white-space: pre; }
.bulk { font-family: ui-monospace, Menlo, monospace; font-size: 14px; }
.example { font-family: var(--serif-zh); background: var(--bg); padding: 10px 12px; border-radius: 8px; margin: 6px 0 10px; }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(80px + env(safe-area-inset-bottom)); z-index: 60;
  background: var(--ink); color: var(--bg); padding: 10px 14px; border-radius: 12px; font-size: 14px;
  display: flex; gap: 10px; align-items: center; max-width: calc(100% - 32px); box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}
.toast .link { color: var(--bg); text-decoration: underline; }
.toast-x { background: none; border: 0; color: var(--bg); font-size: 18px; cursor: pointer; opacity: 0.7; }

@media (min-width: 700px) {
  .page { padding-top: 20px; }
  .skt-big, .zh-big { font-size: 40px; }
}

/* ---------- pronunciation ---------- */
.speak {
  display: inline-grid; place-items: center; position: relative;
  width: 40px; height: 40px; vertical-align: middle; margin-left: 4px;
  border: 1px solid var(--line); border-radius: 50%; background: var(--card);
  font-size: 18px; line-height: 1; cursor: pointer; color: var(--accent);
  -webkit-tap-highlight-color: transparent;
}
.speak.small { width: 30px; height: 30px; font-size: 14px; margin-left: 2px; }
.speak:hover { border-color: var(--accent); }
.speak:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.speak.on { background: var(--accent-soft); border-color: var(--accent); }
.speak .approx { position: absolute; right: -4px; bottom: -4px; font-size: 11px; background: var(--card); border-radius: 50%; padding: 0 3px; color: var(--muted); }
.skt-big .speak { font-family: var(--sans); }
.settings .segs + .small { margin-top: 10px; }

/* ---------- audiobooks ---------- */
.book-link { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.book-link .muted { margin-left: auto; font-size: 20px; }
.book-skt { font-size: 22px; font-weight: 600; color: var(--accent); }
.book-title { font-family: var(--serif-zh); font-weight: 600; }
.book-page { padding-bottom: 210px; }
.bk-verses { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 4px; }
.bk-verses a { min-width: 32px; padding: 3px 6px; text-align: center; border: 1px solid var(--line); border-radius: 8px; font-size: 13px; }
.bk-transcript { padding: 8px 10px; overflow-wrap: anywhere; } /* long compounds (v.6 is one 46-letter word) must wrap */
.bk-seg { padding: 8px 8px; border-radius: 10px; cursor: pointer; scroll-margin: 90px 0 220px; -webkit-tap-highlight-color: transparent; }
.bk-seg.on { background: color-mix(in srgb, var(--accent-soft) 45%, transparent); }
.bk-seg.on:not(:has(.bk-cue)) { background: var(--accent-soft); }
.bk-cue { border-radius: 6px; transition: background-color 0.25s; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.bk-cue.on { background: var(--accent-soft); box-shadow: 0 0 0 3px var(--accent-soft); color: var(--ink); }
.bk-cue.line { display: block; }
.bk-head { display: block; }
.bk-follow {
  position: fixed; left: 50%; transform: translateX(-50%); z-index: 9;
  bottom: calc(58px + 190px + env(safe-area-inset-bottom));
  border: 1px solid var(--accent); background: var(--card); color: var(--accent);
  border-radius: 20px; padding: 6px 14px; font-size: 14px; box-shadow: var(--shadow); cursor: pointer;
}
.bk-section { margin: 14px 0 4px; }
.bk-heading { margin: 18px 0 2px; color: var(--accent); text-transform: none; font-size: 14px; }
.bk-skt .skt { font-size: 19px; line-height: 1.55; }
.bk-skt.repeat .skt { color: var(--muted); }
.bk-word { padding-left: 14px; }
.bk-word b.skt { font-size: 17px; }
.bk-gloss { margin-left: 6px; }
.bk-note { color: var(--muted); margin-top: 2px; }
.bk-zh { font-size: 17px; }
.bk-controls {
  position: fixed; left: 0; right: 0; bottom: calc(58px + env(safe-area-inset-bottom)); z-index: 9;
  max-width: 680px; margin: 0 auto; padding: 8px 14px 10px;
  background: var(--card); border-top: 1px solid var(--line); border-radius: 16px 16px 0 0;
  box-shadow: 0 -4px 16px rgba(60, 40, 20, 0.08);
}
.bk-seek { width: 100%; accent-color: var(--accent); margin: 2px 0; }
.bk-row { display: flex; align-items: center; justify-content: center; gap: 10px; }
.bk-time { width: 64px; }
.bk-time.right { text-align: right; }
.bk-btn { min-width: 48px; font-size: 18px; }
.bk-play { width: 58px; height: 58px; border-radius: 50%; font-size: 20px; padding: 0; }
.bk-opts { flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.bk-opts select { font: inherit; font-size: 14px; padding: 6px 8px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); }
.bk-opts .toggle { display: inline-flex; align-items: center; gap: 4px; }
.bk-status { text-align: center; margin-bottom: 2px; }
.mini-player {
  position: fixed; left: 12px; right: 12px; bottom: calc(66px + env(safe-area-inset-bottom)); z-index: 9;
  max-width: 656px; margin: 0 auto; display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; background: var(--card); color: var(--ink); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: 0 4px 16px rgba(60, 40, 20, 0.12);
}
.mini-title { flex: 1; font-family: var(--serif); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bk-mini-btn { width: 36px; height: 36px; border-radius: 50%; border: 0; background: var(--accent); color: #fff; cursor: pointer; }
body:has(.mini-player) { padding-bottom: calc(130px + env(safe-area-inset-bottom)); }
.bk-subhead { margin: 16px 0 0; font-family: var(--serif-zh); font-weight: 600; border-top: 1px solid var(--line); padding-top: 14px; border-radius: 0; }