/* 字導字演宣傳網頁
 * 色票與字體沿用宣傳片、簡報與工作台（深炭黑＋琥珀）；刻意只做深色一套（color-scheme: dark），body 明確塗底色。
 * 動畫原則：動畫只強調、不藏內容——這份樣式不把任何內容預設為透明或隱藏（提示吐司與剃刀轉場覆蓋層除外）。 */
:root {
  color-scheme: dark;
  --ink: #0E1013;      /* 頁面底 */
  --ink-2: #121519;    /* 跑馬燈底 */
  --panel: #16191E;    /* 舞台面板 */
  --panel-2: #1B1F25;  /* 鍵帽、次要面板 */
  --line: #2C3038;
  --line-2: #3A404A;
  --bone: #E8E6E1;     /* 主文字 */
  --dim: #B7BBC2;      /* 次文字 */
  --mute: #8E9299;     /* 說明文字 */
  --faint: #7C818A;    /* 註記（在 --ink 上約 4.6:1） */
  --amber: #E0A458;    /* 播放頭、強調 */
  --amber-hi: #F2C489;
  --cut: #E5484D;      /* 剪掉 */
  --keep: #6FCF97;     /* 保留、A1 波形 */
  --zoom: #3CC6C0;     /* 局部放大 */
  --v1: #24476B;       /* V1 影片片段 */
  --serif: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --sans: "Noto Sans TC", "Microsoft JhengHei", "PingFang TC", system-ui, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, ui-monospace, monospace;
  --gutter: clamp(16px, 4vw, 56px);
  --topbar-h: 60px;
  --dock-h: 58px;
  --radius: 12px;
}
* { box-sizing: border-box; }
html { background: var(--ink); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ink); color: var(--bone); font-family: var(--sans); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
/* Lenis 的必要樣式（官方 lenis.css；Artifact 只放行 Google Fonts 樣式表，所以直接寫在這裡） */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }
img, video, canvas, svg { max-width: 100%; }
img, video { display: block; }
a { color: var(--amber); }
a:hover { color: var(--amber-hi); }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 4px; }
[hidden] { display: none !important; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.nw { display: inline-block; white-space: nowrap; }  /* 英數字詞不在中間斷行（配合 core.js protectLatinWords） */
kbd { display: inline-block; min-width: 1.6em; padding: 0 .45em; border: 1px solid var(--line-2); border-bottom-width: 2px; border-radius: 5px; background: var(--panel-2); color: var(--bone); font: 700 .82em/1.6 var(--mono); text-align: center; white-space: nowrap; }
.skip-link { position: absolute; left: var(--gutter); top: -60px; z-index: 60; padding: 8px 14px; border-radius: 8px; background: var(--amber); color: var(--ink); font-weight: 700; text-decoration: none; }
.skip-link:focus { top: 8px; color: var(--ink); }

/* 外框：側邊留白只設在這裡；桌機底部留出時間軸導覽的高度 */
.site { position: relative; padding-inline: var(--gutter); padding-bottom: calc(var(--dock-h) + env(safe-area-inset-bottom, 0px)); overflow-x: clip; }

/* 頂列 */
.topbar { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; display: flex; align-items: center; gap: 18px; height: var(--topbar-h); margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); background: rgba(14, 16, 19, .86); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-bottom: 1px solid transparent; transition: border-color .3s; }
.topbar.is-scrolled { border-bottom-color: var(--line); }
.brand { display: flex; align-items: center; gap: 10px; margin-right: auto; color: var(--bone); text-decoration: none; }
.brand:hover { color: var(--bone); }
.brand-mark { width: 24px; height: 24px; fill: none; stroke: var(--amber); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.brand-name { font-family: var(--serif); font-weight: 900; font-size: 19px; letter-spacing: .04em; }
.brand-en { font-family: var(--mono); font-size: 12px; letter-spacing: .16em; color: var(--mute); }
.topbar-tag { font-size: 13px; color: var(--mute); }

/* 按鈕 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 20px; border: 1px solid transparent; border-radius: 10px; font-family: inherit; font-weight: 700; font-size: 15px; line-height: 1.2; text-decoration: none; cursor: pointer; transition: background-color .2s, color .2s, border-color .2s; }
.btn-sm { min-height: 38px; padding: 8px 14px; font-size: 14px; }
.btn-lg { min-height: 52px; padding: 14px 28px; font-size: 17px; }
.btn-solid { background: var(--amber); color: var(--ink); }
.btn-solid:hover { background: var(--amber-hi); color: var(--ink); }
.btn-ghost { border-color: var(--line-2); background: transparent; color: var(--bone); }  /* <button class="btn-ghost">（開聲音看）也要蓋掉瀏覽器預設的灰底 */
.btn-ghost:hover { border-color: var(--amber); color: var(--bone); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* 場景與版面：copy／stage／clip 三個區塊，雙欄交錯（--flip）或舞台跨欄（--wide） */
.scene { position: relative; padding-block: clamp(64px, 11vh, 132px); border-top: 1px solid var(--line); }
.scene:focus { outline: none; }  /* 跳過連結與時間軸導覽會把焦點移到整幕（core.js goTo）；整幕不畫焦點框，幕內按鈕與連結的鍵盤焦點框照常顯示 */
.scene--hero { border-top: 0; padding-block: clamp(28px, 6vh, 72px) clamp(56px, 9vh, 112px); }
.scene-grid { max-width: 1320px; margin-inline: auto; display: grid; gap: 28px clamp(28px, 4vw, 64px); grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); grid-template-areas: "copy clip" "stage clip"; align-items: start; }
.scene--flip .scene-grid { grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); grid-template-areas: "clip copy" "clip stage"; }
.scene--wide .scene-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); grid-template-areas: "copy clip" "stage stage"; }
.scene-copy { grid-area: copy; min-width: 0; }
.stage { grid-area: stage; min-width: 0; }
.clip { grid-area: clip; min-width: 0; }

/* 文字 */
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 14px; font-size: 13px; letter-spacing: .12em; color: var(--mute); }
.eyebrow .act { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 6px; background: var(--amber); color: var(--ink); font-family: var(--serif); font-weight: 900; font-size: 15px; letter-spacing: 0; }
.eyebrow .mono { color: var(--amber); letter-spacing: .04em; }
.headline { margin: 0 0 16px; font-family: var(--serif); font-weight: 900; font-size: clamp(34px, 4.4vw, 60px); line-height: 1.12; letter-spacing: .01em; text-wrap: balance; }
.hero-title { margin: 0 0 22px; font-family: var(--serif); font-weight: 900; font-size: clamp(56px, 8vw, 120px); line-height: 1.02; }
.hero-title .line { display: block; }
.hero-title .accent { color: var(--amber); }
.lead { margin: 0 0 20px; max-width: 34em; color: var(--dim); font-size: clamp(16px, 1.2vw, 18px); }
.lead b { color: var(--bone); }
.fine { margin: 0; font-size: 13px; color: var(--mute); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.chips li { padding: 3px 11px; border: 1px solid var(--line-2); border-radius: 999px; font-size: 13px; color: var(--dim); }

/* 舞台（資料動畫） */
.stage { position: relative; padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.stage-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 6px 12px; margin-bottom: 12px; font-size: 12px; color: var(--mute); }
.stage-title { letter-spacing: .12em; }
.stage-meta b { color: var(--bone); font-weight: 700; }
.stage-note { margin: 12px 0 0; font-size: 12px; color: var(--faint); }

/* 實機錄影 */
.clip { margin: 0; }
.clip-frame { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #000; box-shadow: 0 40px 90px -40px rgba(0, 0, 0, .9); }
/* 影片框的比例先寫死（auto：封面或影片載入後改用實際比例）：封面延後載入（core.js initPosters），
 * 沒有這個比例時影片框會先用瀏覽器預設的 2:1，封面一到高度就跳動，釘住場景的捲動位置也跟著錯開 */
.clip-video { width: 100%; height: auto; aspect-ratio: auto 16 / 9; }
.clip--portrait .clip-video { aspect-ratio: auto 3 / 4; }          /* 直式短片（逐字稿、校稿、匯出面板，820×1092） */
.clip--strip .clip-video { aspect-ratio: auto 1280 / 242; }        /* 時間軸長條（media/silence.mp4 為 1280×242） */
.clip--portrait .clip-frame, .clip--portrait figcaption { max-width: 440px; margin-inline: auto; }
.clip--strip .clip-frame { border-radius: 8px; }
.badge { position: absolute; left: 12px; top: 12px; padding: 2px 9px; border: 1px solid rgba(224, 164, 88, .45); border-radius: 6px; background: rgba(14, 16, 19, .8); color: var(--amber); font-size: 12px; letter-spacing: .08em; }
.clip figcaption { margin-top: 10px; font-size: 13px; color: var(--mute); }

/* 逐字稿列與迷你時間軸（首屏與選字剪輯共用） */
.tx-line { display: grid; grid-template-columns: 70px minmax(0, 1fr); gap: 10px; align-items: baseline; overflow: hidden; }
.tx-tc { font-family: var(--mono); font-size: 12px; color: var(--faint); font-variant-numeric: tabular-nums; }
.tx-words { display: flex; flex-wrap: wrap; row-gap: 2px; font-size: clamp(17px, 1.45vw, 21px); line-height: 1.5; }
.tx-fallback { margin: 0; color: var(--dim); font-size: 18px; }
.w { display: inline-block; padding: 0 3px; border-radius: 4px; overflow: hidden; white-space: nowrap; vertical-align: bottom; color: var(--dim); text-decoration: line-through; text-decoration-color: transparent; text-decoration-thickness: 2px; transition: color .15s, background-color .15s; }
.w.is-lit { color: var(--bone); }
.w.is-marked { color: var(--cut); background: rgba(229, 72, 77, .16); text-decoration-color: var(--cut); }
.mini-tl { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 8px; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); }
.mini-labels { display: grid; grid-auto-rows: 26px; gap: 4px; align-items: center; font-family: var(--mono); font-size: 11px; color: var(--mute); }
.mini-lane { position: relative; display: grid; grid-auto-rows: 26px; gap: 4px; min-width: 0; }
.track-body { display: flex; min-width: 0; overflow: hidden; border-radius: 4px; background: rgba(255, 255, 255, .02); }
.track-body .seg { display: flex; flex: 0 0 auto; align-items: center; justify-content: space-evenly; min-width: 0; height: 100%; overflow: hidden; }
.v1 .seg { justify-content: flex-start; padding-left: 5px; background: linear-gradient(180deg, #2b527a, var(--v1)); border-right: 1px solid var(--ink); font-family: var(--mono); font-size: 10px; color: #d5e6f7; white-space: nowrap; }
.wave .seg { background: rgba(111, 207, 151, .06); }
.wave .seg i { display: block; flex: 1 1 0; max-width: 3px; min-width: 1px; height: calc(var(--h, .1) * 92%); min-height: 2px; border-radius: 1px; background: var(--keep); opacity: .85; }
.s1 .seg { justify-content: flex-start; padding-left: 5px; background: rgba(224, 164, 88, .12); border-right: 1px solid var(--ink); font-size: 11px; color: var(--amber-hi); white-space: nowrap; }
.seg.is-marked { background-image: repeating-linear-gradient(135deg, rgba(229, 72, 77, .5) 0 3px, transparent 3px 7px); }

/* 底部時間軸導覽：每幕一段，播放頭＝整頁捲動進度 */
.dock { position: fixed; left: 0; right: 0; bottom: 0; z-index: 50; display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 16px; height: calc(var(--dock-h) + env(safe-area-inset-bottom, 0px)); padding: 0 var(--gutter) env(safe-area-inset-bottom, 0px); background: rgba(10, 12, 14, .92); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-top: 1px solid var(--line); }
.dock-tc { min-width: 11ch; font-size: 15px; color: var(--amber); letter-spacing: .04em; }
.dock-lane { position: relative; height: 30px; min-width: 0; }
.dock-track { display: flex; gap: 2px; height: 100%; margin: 0; padding: 0; list-style: none; }
.dock-track li { flex: 1 1 0; min-width: 0; }
.dock-track a { display: flex; align-items: center; height: 100%; padding-inline: 6px; overflow: hidden; border: 1px solid var(--line); border-radius: 4px; background: var(--panel-2); color: var(--dim); font-size: 11px; white-space: nowrap; text-decoration: none; transition: background-color .2s, color .2s, border-color .2s; }
.dock-track a[data-act="字"] { background: #1c2a3b; }
.dock-track a[data-act="剪"] { background: #2d1f24; }
.dock-track a[data-act="演"] { background: #2e2716; }
.dock-track a[data-act="出"] { background: #1a2b23; }
.dock-track a:hover { color: var(--bone); border-color: var(--line-2); }
.dock-track li.is-active a { background: var(--amber); border-color: var(--amber); color: var(--ink); }
.dock-playhead { position: absolute; top: -7px; bottom: -7px; left: calc(var(--progress, 0) * 100%); width: 2px; margin-left: -1px; background: var(--amber); box-shadow: 0 0 12px rgba(224, 164, 88, .9); pointer-events: none; }
.dock-playhead::before { content: ""; position: absolute; top: -1px; left: -5px; border: 6px solid transparent; border-top-color: var(--amber); }

/* 剃刀轉場覆蓋層（只在跨幕的半秒出現） */
.razor { position: fixed; inset: 0; z-index: 45; pointer-events: none; visibility: hidden; }
.razor-line { position: absolute; top: 0; bottom: 0; left: 64%; width: 2px; background: var(--amber); box-shadow: 0 0 22px rgba(224, 164, 88, .95), 0 0 2px #fff; transform: scaleY(0); transform-origin: 50% 0; }

/* 保證帶與跑馬燈 */
.band-inner { max-width: 1320px; margin-inline: auto; }
.promises { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin: 28px 0 0; padding: 0; list-style: none; }
.promises li { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.promises h3 { margin: 0 0 8px; font-size: 18px; }
.promises p { margin: 0; font-size: 15px; color: var(--dim); }
.marquee { margin: 48px calc(var(--gutter) * -1) 0; overflow: hidden; border-block: 1px solid var(--line); background: var(--ink-2); }
.marquee-track { display: flex; width: max-content; animation: marquee 48s linear infinite; }
.marquee ul { display: flex; margin: 0; padding: 0; list-style: none; }
.marquee li { padding: 14px 22px; font-family: var(--serif); font-weight: 700; font-size: 20px; color: var(--dim); white-space: nowrap; }
.marquee li::after { content: "／"; margin-left: 22px; color: var(--amber); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* 收尾 */
.scene--finale { padding-block: clamp(80px, 14vh, 160px) 40px; }
.finale-inner { max-width: 880px; margin-inline: auto; text-align: center; }
.finale-inner .eyebrow, .finale-inner .cta-row { justify-content: center; }
.finale-inner .lead { margin-inline: auto; }
.finale-title { font-size: clamp(40px, 6vw, 84px); }
.signup-pending { margin: 16px 0 0; font-size: 14px; color: var(--mute); }
.site-foot { max-width: 1320px; margin: clamp(64px, 10vh, 120px) auto 0; padding-top: 20px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 13px; color: var(--faint); }
.site-foot .brand-name { color: var(--mute); font-size: 15px; }

/* 桌機：雙欄（寬但矮的視窗也維持雙欄，只是不釘住） */
@media (min-width: 1024px) {
  .scene--hero .clip { align-self: center; }
}
/* 釘住版面：寬 ≥1024 且高 ≥880 才釘住，整幕塞進一個視窗高、上下內距讓出頂列與時間軸。
 * 880 必須與 core.js 的 PIN_MIN_H 同值（該值由 scripts/promo-web-check.js 的 pinFit 情境量測並守住）；
 * 矮於 880 的視窗（1366×768、1080p 125%／150% 縮放的筆電）不套這組規則，也不釘住。 */
@media (min-width: 1024px) and (min-height: 880px) {
  .scene--pin { min-height: 100vh; display: flex; align-items: center; padding-block: calc(var(--topbar-h) + 20px) calc(var(--dock-h) + 20px); }
  .scene--pin .scene-grid { width: 100%; }
  .scene--pin .headline { font-size: clamp(32px, 3.6vw, 52px); }
  .scene--pin .lead { font-size: 16px; }
}
/* 平板與手機：單欄，不釘住 */
@media (max-width: 1023.98px) {
  .scene-grid, .scene--flip .scene-grid, .scene--wide .scene-grid { grid-template-columns: minmax(0, 1fr); grid-template-areas: "copy" "stage" "clip"; }
  .topbar-tag { display: none; }
  .promises { grid-template-columns: minmax(0, 1fr); }
}
/* 手機：時間軸導覽改為頂部 4px 進度條 */
@media (max-width: 767px) {
  :root { --topbar-h: 56px; }
  .site { padding-bottom: 0; }
  .brand-en { display: none; }
  .dock { top: calc(var(--topbar-h) + env(safe-area-inset-top, 0px)); bottom: auto; height: 4px; padding: 0; gap: 0; grid-template-columns: minmax(0, 1fr); background: transparent; border: 0; -webkit-backdrop-filter: none; backdrop-filter: none; }
  .dock-tc { display: none; }
  .dock-lane { height: 4px; }
  .dock-track { gap: 1px; }
  .dock-track a { padding: 0; border: 0; border-radius: 0; font-size: 0; }
  .dock-playhead { top: 0; bottom: 0; }
  .dock-playhead::before { display: none; }
  .tx-line { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .razor-line { left: 50%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .marquee-track { animation: none; flex-wrap: wrap; width: auto; }
  .marquee ul[aria-hidden="true"] { display: none; }
}

/* ---------- 首屏 ---------- */
.hero-tx { display: grid; gap: 6px; }
.w-typo { color: var(--bone); background: rgba(224, 164, 88, .08); }
.w-typo.is-editing { outline: 1px solid var(--amber); outline-offset: 1px; }
.w-typo.is-editing::after { content: ""; display: inline-block; width: 2px; height: .95em; margin-left: 1px; background: var(--amber); vertical-align: -.1em; animation: caret 1s steps(1) infinite; }
.w-typo.is-fixed { color: var(--ink); background: var(--amber); }
@keyframes caret { 50% { opacity: 0; } }
.mini-playhead { position: absolute; top: -4px; bottom: -4px; left: 0; width: 2px; background: var(--amber); box-shadow: 0 0 10px rgba(224, 164, 88, .9); }
.hero-count { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 10px; margin: 14px 0 0; font-size: 13px; color: var(--mute); }
.hero-count b { font-size: 20px; color: var(--bone); }
.hero-count .arrow { color: var(--amber); }

/* ---------- 字 01：詞級字幕 ---------- */
.asr-player { position: relative; overflow: hidden; border-radius: 8px; background: #000; }
.asr-video { width: 100%; height: auto; aspect-ratio: auto 16 / 9; }  /* 原片片段 1280×720；封面延後載入前先占好高度 */
.asr-sound { position: absolute; right: 10px; bottom: 10px; display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 6px 12px; border: 1px solid var(--line-2); border-radius: 8px; background: rgba(14, 16, 19, .82); color: var(--bone); font: 700 13px/1 var(--sans); cursor: pointer; }
.asr-sound svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.asr-sound .wave-on { opacity: .25; }
.asr-sound[aria-pressed="true"] { border-color: var(--amber); color: var(--amber); }
.asr-sound[aria-pressed="true"] .wave-on { opacity: 1; }
.asr-lines { position: relative; display: grid; gap: 4px; max-height: 232px; margin-top: 12px; overflow-y: auto; scrollbar-width: thin; }
.asr-line { padding: 3px 0; border-radius: 6px; transition: background-color .2s; }
.asr-line.is-active { background: rgba(224, 164, 88, .06); }
.kw { padding: 0 3px; border: 0; border-radius: 4px; background: none; color: var(--mute); font: inherit; cursor: pointer; transition: color .12s, background-color .12s; }
.kw:hover { color: var(--bone); background: rgba(255, 255, 255, .06); }
.kw.is-said { color: var(--dim); }
.kw.is-now { color: var(--ink); background: var(--amber); }

/* ---------- 字 02：AI 校稿 ---------- */
.rv-lines { display: grid; gap: 10px; margin-bottom: 200px; }
.rv-line { margin: 0; padding: 2px 0; border-radius: 6px; }
.rv-line.is-active { background: rgba(224, 164, 88, .06); }
.rv-text { font-size: clamp(16px, 1.3vw, 19px); color: var(--dim); }
.rv-typo { padding: 0 2px; border-radius: 3px; color: var(--bone); text-decoration: underline wavy transparent; text-decoration-thickness: 1.5px; text-underline-offset: 4px; transition: color .2s, background-color .2s, text-decoration-color .2s; }
.rv-typo.is-flagged { text-decoration-color: #F0A13A; }
.rv-typo.is-fixed { color: var(--ink); background: var(--keep); text-decoration-color: transparent; }
.rv-typo.is-skipped { color: var(--mute); text-decoration-color: transparent; }
.rv-card { position: absolute; left: 0; top: 0; z-index: 2; width: min(300px, calc(100% - 24px)); padding: 12px 14px; border: 1px solid var(--line-2); border-radius: 10px; background: #1E232A; box-shadow: 0 18px 40px -12px rgba(0, 0, 0, .8); }
.rv-card::before { content: ""; position: absolute; top: -7px; left: var(--notch, 28px); width: 12px; height: 12px; background: #1E232A; border-left: 1px solid var(--line-2); border-top: 1px solid var(--line-2); transform: translateX(-50%) rotate(45deg); }
.rv-card-head { display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 12px; color: var(--mute); }
.rv-change { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px; margin: 0 0 4px; font-size: 17px; }
.rv-change s { color: var(--mute); text-decoration-color: var(--cut); }
.rv-change b { color: var(--keep); }
.rv-arrow { color: var(--amber); }
.rv-reason { margin: 0 0 10px; font-size: 13px; color: var(--dim); }
.rv-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.rv-btn { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border: 1px solid var(--line-2); border-radius: 7px; font-size: 13px; color: var(--bone); transition: background-color .15s, color .15s, transform .15s; }
.rv-btn kbd { font-size: 11px; }
.rv-accept { border-color: rgba(111, 207, 151, .5); }
.rv-btn.is-pressed { transform: translateY(2px); background: var(--amber); color: var(--ink); }
.rv-card.is-learned { border-color: var(--amber); }
.rv-card.is-learned .rv-reason { color: var(--amber-hi); font-weight: 700; }

/* ---------- 剪 03：選字剪輯 ---------- */
.wc-keys { display: inline-flex; gap: 6px; }
.wc-keys kbd { font-size: 12px; }
.wc-lines { display: grid; gap: 6px; }
.wc-lines .is-cutline .w { color: var(--bone); }
.wc-range { position: absolute; top: -3px; bottom: -3px; border: 1px solid var(--amber); border-radius: 4px; background: rgba(224, 164, 88, .14); transform-origin: 0 50%; pointer-events: none; }
.wc-delta { margin: 14px 0 0; font-size: 13px; color: var(--mute); }
.wc-delta b { font-size: 20px; color: var(--cut); }
.wc-delta b::before { content: "−"; }
.wc-cursor { position: absolute; left: 0; top: 0; z-index: 3; width: 22px; height: 22px; fill: var(--bone); stroke: var(--ink); stroke-width: 1.5; filter: drop-shadow(0 2px 4px rgba(0, 0, 0, .6)); pointer-events: none; }

/* ---------- 剪 04：無聲裁剪 ---------- */
.sil-canvas { display: block; width: 100%; height: clamp(150px, 22vh, 230px); }

/* ---------- 剪 05：熱鍵 ---------- */
.keyboard { display: grid; gap: 8px; }
.krow { display: flex; flex-wrap: wrap; gap: 8px; }
.key { display: inline-grid; place-items: center; min-width: 48px; height: 48px; padding: 0 10px; border: 1px solid var(--line-2); border-bottom-width: 3px; border-radius: 8px; background: var(--panel-2); color: var(--bone); font: 700 16px/1 var(--mono); transition: background-color .08s, border-color .08s, color .08s, transform .08s, box-shadow .08s; }
.key-mod, .key-wide, .key-wheel { min-width: 78px; font-size: 13px; }
.key-wheel { font-family: var(--sans); }
.key.on { background: var(--amber); border-color: var(--amber-hi); color: var(--ink); transform: translateY(2px); box-shadow: 0 0 22px rgba(224, 164, 88, .55); }
.keys-readout { min-height: 1.7em; margin: 14px 0 12px; font-size: 16px; color: var(--amber); }
.keys-legend { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 18px; margin: 0; }
.keys-legend div { display: flex; align-items: baseline; gap: 8px; min-width: 0; }
.keys-legend dt { flex: none; }
.keys-legend dd { margin: 0; font-size: 13px; color: var(--dim); }
@media (max-width: 520px) {
  .keys-legend { grid-template-columns: minmax(0, 1fr); }
  .key { min-width: 40px; height: 42px; }
  .key-mod, .key-wide, .key-wheel { min-width: 64px; }
}

/* ---------- 演 06：語音重生 ---------- */
.vo-line { margin: 0 0 14px; font-size: clamp(20px, 2vw, 26px); color: var(--dim); }
.vo-word { display: inline-block; padding: 0 6px; border-radius: 6px; color: var(--bone); background: rgba(229, 72, 77, .18); }
.vo-word.is-new { color: var(--ink); background: var(--amber); }
.vo-ab { display: grid; gap: 10px; }
.vo-btn { display: grid; grid-template-columns: 88px minmax(0, 1fr); align-items: center; gap: 12px; width: 100%; min-height: 64px; padding: 8px 12px; border: 1px solid var(--line-2); border-radius: 10px; background: var(--panel-2); color: var(--bone); font: 700 14px/1.2 var(--sans); text-align: left; cursor: pointer; transition: border-color .2s, background-color .2s; }
.vo-btn canvas { display: block; width: 100%; height: 46px; }
.vo-btn:hover { border-color: var(--mute); }
.vo-btn[aria-pressed="true"] { border-color: var(--keep); background: #17221d; }
.vo-btn--after[aria-pressed="true"] { border-color: var(--amber); background: #251f14; }

/* ---------- 演 07：局部放大 ---------- */
.zoom-view { position: relative; overflow: hidden; aspect-ratio: 16 / 9; max-width: 100%; border-radius: 8px; background: #000; }
.zoom-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transform-origin: 50% 50%; will-change: transform; }
.zoom-ov { position: absolute; inset: 0; width: 100%; height: 100%; }
.zp-line { fill: none; stroke: var(--zoom); stroke-width: 3; stroke-dasharray: 12 10; }
.zp-box { fill: none; stroke: rgba(60, 198, 192, .55); stroke-width: 3; stroke-dasharray: 16 12; }
.zp-dot { fill: var(--zoom); }
.zp-live { fill: rgba(60, 198, 192, .08); stroke: var(--zoom); stroke-width: 4; }
.zoom-bar { position: relative; height: 18px; margin-top: 10px; }
.zoom-band { position: absolute; inset: 3px 0; border: 1px solid rgba(60, 198, 192, .6); border-radius: 4px; background: rgba(60, 198, 192, .22); }
.zp-diamond { position: absolute; top: 50%; width: 9px; height: 9px; margin: -4.5px 0 0 -4.5px; background: var(--zoom); transform: rotate(45deg); }
.zoom-head { position: absolute; top: -6px; bottom: -6px; width: 2px; margin-left: -1px; background: var(--amber); box-shadow: 0 0 8px rgba(224, 164, 88, .9); }

/* ---------- 演 08：綜藝字卡 ---------- */
.cards-view { position: relative; overflow: hidden; aspect-ratio: 16 / 9; max-width: 100%; border-radius: 8px; background: #000; }
.cards-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.cards-layer { position: absolute; inset: 0; }
.card-el { position: absolute; transform: translate(-50%, -50%); white-space: nowrap; font-family: "Microsoft JhengHei", var(--sans); font-weight: 900; line-height: 1.2; pointer-events: none; }
.card-txt { display: inline-block; paint-order: stroke fill; }

/* ---------- 出 09：輸出 ---------- */
.ex-render { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 10px; margin-bottom: 16px; font-size: 13px; color: var(--mute); }
.ex-track { height: 8px; overflow: hidden; border-radius: 99px; background: var(--panel-2); }
.ex-bar { display: block; height: 100%; background: linear-gradient(90deg, var(--amber), var(--amber-hi)); transform-origin: 0 50%; }
.ex-count { color: var(--bone); }
.ex-flow { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
.ex-files, .ex-dsts { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.ex-tile { position: relative; z-index: 1; display: grid; min-height: 52px; padding: 8px 12px; border: 1px solid var(--line-2); border-radius: 8px; background: var(--panel-2); }
.ex-tile b { font-family: var(--mono); font-size: 14px; color: var(--bone); }
.ex-tile span { font-size: 12px; color: var(--mute); }
.ex-dst { display: flex; align-items: center; min-height: 52px; padding: 8px 12px; border: 1px dashed var(--line-2); border-radius: 8px; font-size: 14px; color: var(--dim); transition: border-color .2s, color .2s, background-color .2s; }
.ex-dst.is-hit { border-style: solid; border-color: var(--keep); color: var(--bone); background: rgba(111, 207, 151, .08); }

/* ---------- 聲音：開關 ---------- */
.sound-toggle { display: inline-flex; align-items: center; gap: 6px; min-height: 38px; padding: 6px 12px; border: 1px solid var(--line-2); border-radius: 10px; background: transparent; color: var(--dim); font: 700 13px/1 var(--sans); cursor: pointer; transition: color .2s, border-color .2s; }
.sound-toggle:hover { color: var(--bone); border-color: var(--mute); }
.sound-toggle[aria-pressed="true"] { color: var(--amber); border-color: var(--amber); }
.sound-icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.sound-toggle .sound-wave, .sound-toggle[aria-pressed="true"] .sound-x { display: none; }
.sound-toggle[aria-pressed="true"] .sound-wave { display: inline; }
.sound-on .eq { display: inline-flex; align-items: flex-end; gap: 2px; height: 14px; }
.sound-on .eq i { display: block; width: 3px; height: 40%; border-radius: 1px; background: var(--amber); animation: eq .9s ease-in-out infinite; }
.sound-on .eq i:nth-child(2) { animation-delay: -.3s; }
.sound-on .eq i:nth-child(3) { animation-delay: -.6s; }
.sound-on[aria-pressed="true"] { border-color: var(--amber); color: var(--amber); }
@keyframes eq { 50% { height: 100%; } }
@media (max-width: 767px) { .sound-toggle .sound-label { display: none; } }

/* ---------- 聲音：剪前／剪後對照 ---------- */
.ab { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 12px; }
.ab-btn { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 8px; min-height: 40px; padding: 6px 10px; border: 1px solid var(--line-2); border-radius: 8px; background: var(--panel-2); color: var(--bone); font: 700 12px/1.2 var(--sans); text-align: left; cursor: pointer; transition: border-color .2s; }
.ab-btn:hover { border-color: var(--mute); }
.ab-btn b { font-family: var(--mono); font-weight: 700; }
.ab-btn canvas { display: block; width: 100%; height: 26px; }
.ab-btn[aria-pressed="true"] { border-color: var(--keep); }
.ab-btn--after[aria-pressed="true"] { border-color: var(--amber); }
.stage-note + .stage-note { margin-top: 4px; }
@media (max-width: 420px) { .ab { grid-template-columns: minmax(0, 1fr); } }