/* 播放器外框：布局同参考 #1090 演示（画面 → 旁白条 → 字幕栏 → 控件）。
 * 画面里的 Kuee 后台固定浅色（等同截图）；外框跟随查看者的明暗主题。 */
:root {
  --bg: #F3F5F4; --panel: #FFFFFF; --fg: #16202B; --muted: #5F6B76; --border: #DCE2E0;
  --accent: #0F766E; --accent-fg: #FFFFFF; --shadow: 0 1px 2px rgba(16, 24, 32, .06), 0 8px 24px rgba(16, 24, 32, .06);
  --tag-hand-bg: #E7F7EF; --tag-hand-fg: #0F766E;
  --tag-auto-bg: #EEEAFD; --tag-auto-fg: #5B4BB7;
  --tag-note-bg: #EEF1F4; --tag-note-fg: #475569;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101515; --panel: #182020; --fg: #E6ECEA; --muted: #9AA7A4; --border: #2A3533;
    --accent: #3DCAB1; --accent-fg: #062521; --shadow: 0 1px 2px rgba(0, 0, 0, .3);
    --tag-hand-bg: rgba(61, 202, 177, .16); --tag-hand-fg: #7FE0CD;
    --tag-auto-bg: rgba(157, 139, 239, .18); --tag-auto-fg: #C6BBFA;
    --tag-note-bg: rgba(255, 255, 255, .08); --tag-note-fg: #B9C3C1;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #101515; --panel: #182020; --fg: #E6ECEA; --muted: #9AA7A4; --border: #2A3533;
  --accent: #3DCAB1; --accent-fg: #062521; --shadow: 0 1px 2px rgba(0, 0, 0, .3);
  --tag-hand-bg: rgba(61, 202, 177, .16); --tag-hand-fg: #7FE0CD;
  --tag-auto-bg: rgba(157, 139, 239, .18); --tag-auto-fg: #C6BBFA;
  --tag-note-bg: rgba(255, 255, 255, .08); --tag-note-fg: #B9C3C1;
  color-scheme: dark;
}
html, body { background: var(--bg); color: var(--fg); }
body { font-family: Inter, system-ui, "PingFang SC", "Noto Sans SC", "Noto Sans KR", "Helvetica Neue", Arial, sans-serif; }
:lang(ko) { font-family: Inter, "Noto Sans KR", system-ui, sans-serif; }

.kt-wrap { max-width: min(1440px, max(640px, calc((100vh - 400px) * 1.6 + 32px))); margin: 0 auto; padding-block: 20px 32px; padding-inline: 16px; display: flex; flex-direction: column; gap: 14px; }
.kt-head h1 { margin: 0; font-size: 22px; font-weight: 650; text-wrap: balance; }
.kt-head p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

.kt-frame { position: relative; width: 100%; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); background: #FFFFFF; }
.kt-stage { position: absolute; left: 0; top: 0; width: 1440px; height: 900px; transform-origin: 0 0; overflow: hidden; background: #FFFFFF; color: #1C3E60; color-scheme: light; }
#kt-mount { position: absolute; inset: 0; }
#kt-cursor { position: absolute; left: 0; top: 0; width: 28px; height: 28px; z-index: 100; pointer-events: none; filter: drop-shadow(0 2px 3px rgba(0, 0, 0, .25)); transform-origin: 5px 3px; }
#kt-cursor.press { animation: kt-press .32s ease; }
#kt-cursor.hold path { fill: #0F766E; }
@keyframes kt-press { 40% { scale: .82; } }

.kt-narr { background: rgba(18, 20, 19, .88); color: #FFFFFF; border-radius: 12px; padding: 12px 16px; display: flex; gap: 12px; align-items: flex-start; min-height: 68px; font-size: 18px; line-height: 1.55; box-shadow: var(--shadow); }
.kt-nlab { flex: none; font-size: 12px; font-weight: 600; letter-spacing: 1px; background: rgba(255, 255, 255, .16); border-radius: 6px; padding: 2px 8px; margin-top: 5px; }
#kt-narrText { opacity: 0; transform: translateY(4px); transition: opacity .45s, transform .45s; min-width: 0; }
#kt-narrText.in { opacity: 1; transform: none; }
.kt-narr.off { display: none; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .kt-narr { background: rgba(255, 255, 255, .10); border: 1px solid rgba(255, 255, 255, .14); } }
:root[data-theme="dark"] .kt-narr { background: rgba(255, 255, 255, .10); border: 1px solid rgba(255, 255, 255, .14); }

.kt-capbar { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; display: flex; flex-direction: column; gap: 8px; min-height: 92px; }
.kt-caphead { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.kt-tag { display: inline-flex; align-items: center; height: 22px; padding: 0 8px; border-radius: 6px; font-size: 12px; font-weight: 600; }
.kt-tag.t-manual { background: var(--tag-hand-bg); color: var(--tag-hand-fg); }
.kt-tag.t-auto { background: var(--tag-auto-bg); color: var(--tag-auto-fg); }
.kt-tag.t-note { background: var(--tag-note-bg); color: var(--tag-note-fg); }
.kt-captext { font-size: 18px; line-height: 1.55; color: var(--fg); min-width: 0; }

.kt-controls { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.kt-cbtn { height: 40px; min-width: 40px; padding: 0 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--panel); color: var(--fg); font: inherit; font-size: 14px; cursor: pointer; }
.kt-cbtn:hover { border-color: var(--accent); }
.kt-cbtn.main { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-weight: 600; min-width: 84px; }
.kt-dots { display: flex; gap: 6px; flex-wrap: wrap; margin-inline: 4px auto; }
.kt-dot { width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--border); background: var(--panel); color: var(--muted); font: inherit; font-size: 12px; cursor: pointer; font-variant-numeric: tabular-nums; }
.kt-dot.seen { color: var(--accent); border-color: var(--accent); }
.kt-dot.on { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-weight: 600; }
.kt-spd { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.kt-spd button { height: 38px; padding: 0 12px; border: 0; background: var(--panel); color: var(--fg); font: inherit; font-size: 13px; cursor: pointer; }
.kt-spd button[aria-pressed="true"] { background: var(--accent); color: var(--accent-fg); font-weight: 600; }
.kt-cbtn:focus-visible, .kt-dot:focus-visible, .kt-spd button:focus-visible, .kt-langs select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.kt-langs { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.kt-langs label { display: inline-flex; align-items: center; gap: 8px; }
.kt-langs select { height: 34px; border-radius: 8px; border: 1px solid var(--border); background: var(--panel); color: var(--fg); font: inherit; font-size: 13px; padding: 0 8px; }
.kt-note { font-size: 13px; color: var(--muted); line-height: 1.6; }

@media (max-width: 640px) {
  .kt-narr { font-size: 16px; min-height: 64px; padding: 12px 14px; }
  .kt-captext { font-size: 16px; }
  .kt-cbtn { padding: 0 10px; }
}
@media (prefers-reduced-motion: reduce) { #kt-narrText { transition: none; } #kt-cursor.press { animation: none; } }

/* 字幕逐句淡入（只有一条字幕栏，配音读的就是这句） */
.kt-captext.in { animation: kt-capin .4s ease; }
@keyframes kt-capin { from { opacity: 0; transform: translateY(4px); } }
@media (prefers-reduced-motion: reduce) { .kt-captext.in { animation: none; } }

/* 嵌入产品帮助弹窗（?embed=1）：只留画面、字幕和播放控制，宽度按 iframe 高度算，保证一屏放下 */
.kt-wrap.kt-embed { max-width: min(1440px, calc((100vh - 245px) * 1.6 + 24px)); padding: 8px 12px 12px; gap: 10px; }
.kt-embed .kt-head, .kt-embed .kt-langs, .kt-embed .kt-note { display: none; }
.kt-embed .kt-controls { flex-wrap: nowrap; gap: 6px; }
.kt-embed .kt-cbtn { padding: 0 10px; }
.kt-embed .kt-dots { flex-wrap: nowrap; }
.kt-embed .kt-spd { margin-left: auto; flex-shrink: 0; }
.kt-embed .kt-spd button { padding: 0 9px; }
.kt-embed .kt-capbar { padding: 10px 14px; min-height: 84px; gap: 6px; }
.kt-embed .kt-captext { font-size: 16px; }
.kt-embed .kt-cbtn { white-space: nowrap; }
.kt-embed .kt-dots { gap: 4px; }
.kt-embed .kt-dot { width: 28px; height: 28px; }