/* ======================================================
   BirdSpeak 主題：科技感、簡潔（2026-10-23 Mia：「畫面科技感跟簡潔一點，參考 StayJP 電子報」）
   取自 stayjp.study/letters：近黑底、Inter、半透明玻璃面板、細線、萊姆綠漸層主按鈕、藍／青光暈。
   這個檔最後載入，覆蓋 en.css / en-extra.css 的變數與主要元件；深色是預設，淺色保留。
   ====================================================== */
:root, :root[data-theme="dark"] {
  --bg: #050608; --bg2: rgba(20,22,27,.78); --bg3: #121418; --hd: rgba(5,6,8,.72);
  --tx: #F3F5F8; --tx2: #A3AAB6; --tx-s: #686F7B; --tx3: #686F7B;
  --ac: #A6F26E; --ac-soft: rgba(166,242,110,.14); --ac2: #FF7A59;
  --ok: #66E07E;
  --bd: rgba(255,255,255,.13); --line: rgba(255,255,255,.08);
  --sh: none; --sh2: 0 20px 60px rgba(0,0,0,.45);
  --r: 14px;
  --serif: "Inter", -apple-system, "PingFang TC", "Noto Sans TC", sans-serif;
  --thf: "Inter", -apple-system, "PingFang TC", sans-serif;
  --btn: linear-gradient(90deg, #BDF56E, #66E07E);
  --glow: rgba(166,242,110,.35);
  --il-ink: #E6E9EF; --il-ink2: #A3AAB6; --il-paper: #1B1E25; --il-cream: #15181E; --il-line: #2A2F38; --il-red: #FF7A59; --il-blue: #7FB0FF; --il-amber: #F2C14E; --il-green: #66E07E; --il-blush: #F0A3B3; --il-tea: #C9A27A;
  --pa-ink: #0B0D10; --pa-body: #38C5A3; --pa-belly: #A6F26E; --pa-beak: #F2A65A; --pa-eye: #0B0D10;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #F3F4F1; --bg2: rgba(255,255,255,.86); --bg3: #FFFFFF; --hd: rgba(243,244,241,.8);
  --tx: #0D0F13; --tx2: #4F5662; --tx-s: #8B919B; --tx3: #8B919B;
  --ac: #2F9A35; --ac-soft: rgba(70,180,60,.14); --ac2: #D9480F;
  --ok: #2F9A35;
  --bd: rgba(10,12,16,.16); --line: rgba(10,12,16,.09);
  --sh: none; --sh2: 0 18px 50px rgba(20,24,30,.10);
  --btn: linear-gradient(90deg, #BDF56E, #66E07E);
  --glow: rgba(70,180,60,.25);
  --il-ink: #3B3A3E; --il-ink2: #5A575E; --il-paper: #FFFFFF; --il-cream: #F4EFE3; --il-line: #DDD5C0; --il-red: #C7452F; --il-blue: #2B5BA8; --il-amber: #E2A53A; --il-green: #4F8A5C; --il-blush: #EFA49B; --il-tea: #C9A27A;
  --pa-ink: #1E2430; --pa-body: #38C5A3; --pa-belly: #A6F26E; --pa-beak: #F2A65A; --pa-eye: #1E2430;
  color-scheme: light;
}
html { background: var(--bg); }
body { font-family: "Inter", -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", system-ui, sans-serif; letter-spacing: 0; -webkit-font-smoothing: antialiased; }
/* 背景光暈（照電子報的 .sky）：只在最上方，淡淡的，不干擾內容 */
body::before { content: ""; position: fixed; left: 50%; top: -30vh; width: min(640px, 80vw); height: 70vh; transform: translateX(-50%); z-index: 0; pointer-events: none; border-radius: 50%; filter: blur(70px); opacity: .55;
  background: radial-gradient(ellipse 50% 50% at 50% 40%, rgba(150,185,255,.5), rgba(90,120,220,.18) 45%, transparent 72%); }
:root[data-theme="light"] body::before { opacity: .18; }
:root[data-theme="light"] body::after { opacity: .12; }
body::after { content: ""; position: fixed; right: -10%; top: 30vh; width: 45vw; height: 50vh; z-index: 0; pointer-events: none; border-radius: 50%; filter: blur(70px); opacity: .35;
  background: radial-gradient(ellipse at center, rgba(40,160,170,.35), transparent 65%); }
/* 內容區要蓋在背景光暈上；標頭／底欄／彈窗的 z-index 一律沿用 en.css（之前這行把 .hd/.bnav 也壓成 z-index:1，內容捲上去會蓋住標頭、底欄被蓋住 → 探長J 2026-10-24「設定不能按、帳號不能按、卡在文章頁」） */
main.wrap { position: relative; z-index: 1; }

/* 標頭 */
.hd { background: var(--hd); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px) saturate(130%); -webkit-backdrop-filter: blur(16px) saturate(130%); }
.hd h1 { font-family: inherit; font-weight: 700; letter-spacing: .01em; }
.hd h1 img { width: 28px; height: 28px; }

/* 等級與工具列 */
.levels .lv-label { color: var(--tx3); letter-spacing: .14em; }
.lv-btn { background: var(--bg2); border-color: var(--bd); border-radius: 10px; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.lv-btn.on { background: var(--btn); border-color: transparent; color: #0A0F08; }
.lv-btn.on small { color: rgba(10,15,8,.7); }
.tools { border-bottom-color: var(--line); }
.tool-btn { color: var(--tx3); font-weight: 600; }
.tool-btn.on { color: var(--tx); border-bottom-color: var(--ac); }

/* 面板、卡片：半透明玻璃 */
.en-card, .vcard, .hb-plan, .hb-resume, .hb-wod, .en-wod, .en-greet, .en-lvcard, .en-cucard, .en-cu-tile, .en-tk-scene, .pa-found, .fc-face, .pw-plan, .sheet-item, .hb-quick button, .hb-quick a, .en-path-unit, .en-path-lesson, .pq-card, .pm, .en-wr-item, .g-card, .ph-card, .en-pf-stats > div, .en-hjrel, .en-fc-rv, .mv-item {
  background: var(--bg2); border: 1px solid var(--line); box-shadow: none; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.en-card, .hb-plan, .en-greet, .fc-face, .en-tk-scene, .en-cucard { border-radius: 18px; }
.en-greet { background: var(--bg2); }
.en-cucard:hover, .en-tk-scene:hover, .en-cu-tile:hover, .pa-found:hover { border-color: var(--bd); }
.pa-found { background: var(--bg2); border-color: var(--line); }
.pa-found-ic { background: var(--bg3); color: var(--ac); border: 1px solid var(--line); font-family: inherit; }
.pa-found-h, .hb-plan-h, .hb-sec, .en-wod-l { color: var(--tx3); letter-spacing: .12em; text-transform: uppercase; font-size: 11px; }

/* 按鈕 */
.btn { background: var(--bg2); border-color: var(--bd); color: var(--tx); border-radius: 12px; font-weight: 600; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: border-color .2s, box-shadow .2s, transform .15s; }
.btn:hover { border-color: var(--tx3); }
.btn:active { transform: translateY(1px); }
.btn.primary, .hb-go, .en-submit.primary, .sheet-premium, .pa-upgrade { background: var(--btn); border-color: transparent; color: #0A0F08; box-shadow: none; }
.btn.primary:hover, .hb-go:hover { box-shadow: 0 0 28px var(--glow); filter: brightness(1.04); }
.btn.primary:disabled { opacity: .45; box-shadow: none; }
.hb-go.rest { background: var(--bg2); color: var(--tx2); border: 1px solid var(--line); }
.sheet-premium, .pa-upgrade { color: #0A0F08; }
.sheet-premium .bi, .pa-upgrade .pa-up-tx span { color: rgba(10,15,8,.75); }
.pa-upgrade b { color: #0A0F08; }
.pos-btn { background: var(--bg2); border-color: var(--bd); color: var(--tx2); }
.pos-btn.on { background: var(--ac-soft); border-color: var(--ac); color: var(--tx); }
.qz-opt { background: var(--bg2); border-color: var(--bd); border-radius: 12px; }
.qz-opt.ok { background: var(--ok); border-color: var(--ok); color: #0A0F08; }
.qz-opt.ng { background: var(--ac2); border-color: var(--ac2); color: #fff; }
.qz-opt.sel { border-color: var(--ac); background: var(--ac-soft); box-shadow: 0 0 0 1px var(--ac) inset; }
.search, .en-input, .en-select, select { background: var(--bg3); border-color: var(--bd); color: var(--tx); border-radius: 12px; }
.search:focus, .en-input:focus { border-color: var(--ac); box-shadow: 0 0 0 3px var(--ac-soft); }
.tts-btn { background: var(--bg3); border: 1px solid var(--line); color: var(--ac); border-radius: 999px; }

/* 字級 / 標題：Inter，英文大字 */
.fc-word, .vcard-w, .ws-w, .en-wod-w, .hb-wod-w, .qz-word, .en-greet-hi, .hb-greet, .hb-prem-t, .hb-plan-n b, .pw-plan b, .en-cu-head h2 { font-family: inherit; letter-spacing: -.01em; }
.fc-word { font-weight: 600; }
[lang="en"] { font-family: "Inter", -apple-system, sans-serif; }
.en-rr, .fc-py, .vcard-py, .ws-p { font-family: "Inter", "Charis SIL", "Doulos SIL", serif; color: var(--tx2); }
.en-tap { border-bottom: 1px dashed color-mix(in srgb, var(--ac) 60%, transparent); cursor: pointer; }
.en-tap:hover { color: var(--ac); }

/* 底部導覽、更多面板、設定 */
.bnav { background: var(--hd); border-top: 1px solid var(--line); backdrop-filter: blur(16px) saturate(130%); -webkit-backdrop-filter: blur(16px) saturate(130%); }
.bn-item.on { color: var(--ac); }
.sheet, .wsheet, .quiz-box { background: var(--bg3); border: 1px solid var(--line); box-shadow: var(--sh2); }
.sheet-item { border-radius: 14px; }
.set-seg button.on, .set-acc button.on { background: var(--ac-soft); border-color: var(--ac); color: var(--tx); }
.toast { background: var(--tx); color: var(--bg3); }

/* 首頁 */
.en-greet-fire { color: #0A0F08; background: var(--btn); }
.en-ring .en-ring-v { stroke: var(--ac); }
.hb-goal-bar, .en-path-bar { background: rgba(255,255,255,.08); }
:root[data-theme="light"] .hb-goal-bar, :root[data-theme="light"] .en-path-bar { background: rgba(10,12,16,.08); }
.hb-goal-bar i, .en-path-bar i { background: var(--btn); }
.en-lvcard.on { border-color: var(--ac); box-shadow: 0 0 0 1px var(--ac) inset, 0 0 24px var(--glow); }
.hb-quick button, .hb-quick a { color: var(--tx); font-weight: 600; }

/* AI 對話 */
.en-tk-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
@media (min-width: 640px) { .en-tk-grid { grid-template-columns: repeat(3, 1fr); } }
.en-tk-scene { position: relative; align-items: flex-start; text-align: left; padding: 14px 14px 12px; gap: 4px; }
.en-tk-scene .en-cu-ic { width: 36px; height: 36px; border-radius: 10px; background: var(--bg3); border: 1px solid var(--line); color: var(--ac); display: grid; place-items: center; margin-bottom: 4px; }
.en-tk-acc { font-style: normal; font-size: 10.5px; font-weight: 700; color: var(--ac); border: 1px solid color-mix(in srgb, var(--ac) 50%, transparent); border-radius: 999px; padding: 1px 8px; margin-top: 4px; letter-spacing: .04em; }
.en-tk-done { position: absolute; top: 10px; right: 10px; font-style: normal; font-size: 10.5px; color: var(--tx3); }
.en-bub.ai { background: var(--bg3); border-color: var(--line); }
.en-bub.me { background: var(--ac-soft); border-color: color-mix(in srgb, var(--ac) 35%, transparent); }
.en-fix { background: rgba(255,122,89,.1); border: 1px solid rgba(255,122,89,.3); border-radius: 10px; padding: 6px 10px; margin-top: 6px; font-size: 13px; }
.en-fc-ring.hi { background: var(--ok); color: #0A0F08; } .en-fc-ring.mid { background: #F2C14E; color: #0A0F08; } .en-fc-ring.lo { background: var(--ac2); }

/* 三種難度文章 */
.en-ar-bands { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 4px; border-radius: 14px; background: var(--bg2); border: 1px solid var(--line); margin: 12px 0 14px; }
.en-ar-bands button { font: inherit; background: none; border: 0; border-radius: 10px; padding: 8px 6px; color: var(--tx3); cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 2px; }
.en-ar-bands button b { font-size: 14px; font-weight: 700; }
.en-ar-bands button small { font-size: 10.5px; letter-spacing: .02em; }
.en-ar-bands button.on { background: var(--bd); color: var(--tx); }
.en-ar-bands button.on b { color: var(--ac); }
.en-ar-zh { font-size: 13.5px; color: var(--tx3); margin: 4px 0 0; }
.en-cu-head h2 { font-size: 24px; line-height: 1.3; font-weight: 700; }
.en-ar-body { display: block; }
.en-ar-p { font-size: 17.5px; line-height: 1.9; margin: 0 0 1.1em; color: var(--tx); }
.en-ar-s { display: inline; cursor: pointer; border-radius: 6px; padding: 1px 2px; transition: background .2s; }
.en-ar-s .cd-ko { display: inline; }
.en-ar-s .cd-tr { display: block; font-size: 13px; color: var(--tx3); margin: 0 0 6px; line-height: 1.6; }
.en-ar-body.no-tr .cd-tr { display: none; }
.en-ar-s.on { background: var(--ac-soft); box-shadow: 0 0 0 1px color-mix(in srgb, var(--ac) 40%, transparent); }
.en-ar-s.turn { background: rgba(255,122,89,.12); }
.en-ar-s .cd-turn { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ac2); margin: 4px 0 8px; }
.en-ar-s .cd-turn i { flex: 1; height: 3px; border-radius: 999px; background: var(--ac2); transform-origin: left; animation: cdTurnBar linear forwards; }
@keyframes cdTurnBar { from { transform: scaleX(1); } to { transform: scaleX(0); } }
.en-ar-s:hover { background: var(--line); }
.cd { background: var(--bg2); border: 1px solid var(--line); border-radius: 16px; padding: 10px 12px; margin-bottom: 14px; }
.cd-play { background: var(--btn); color: #0A0F08; border: 0; }
.cd-o.on { background: var(--ac-soft); border-color: var(--ac); color: var(--tx); }
.cd-float { background: var(--bg3); border: 1px solid var(--line); box-shadow: var(--sh2); }
.en-cover-scene { background: var(--bg3); border: 1px solid var(--line); color: var(--ac); display: grid; place-items: center; }
.en-cu-tile-tx small { color: var(--ac); }
.en-exchip { background: var(--bg3); border: 1px solid var(--line); color: var(--tx); border-radius: 10px; }
.en-exchip em { color: var(--tx3); font-style: normal; }

/* 付費牆 */
.pw-plan.hot { border: 1px solid var(--ac); box-shadow: 0 0 0 1px var(--ac) inset, 0 0 30px var(--glow); }
.pw-tag { background: var(--btn); color: #0A0F08; }
.pw-benefits li { color: var(--tx2); }

/* 動畫收斂 */
@media (prefers-reduced-motion: reduce) { body::before, body::after { display: none; } }

/* ── 首頁雙主軸：今天聊一場／今天讀一篇 ── */
.en-top { display: flex; align-items: center; gap: 12px; padding: 4px 2px 0; }
.en-top-l .en-tiger { width: 56px !important; height: 56px !important; }
.en-top-tx { flex: 1; min-width: 0; }
.en-top .en-greet-hi { font-size: 20px; }
.en-two-prog { flex: none; text-align: center; background: var(--bg2); border: 1px solid var(--line); border-radius: 14px; padding: 8px 12px; line-height: 1.1; }
.en-two-prog b { font-size: 22px; color: var(--ac); } .en-two-prog small { font-size: 12px; color: var(--tx3); } .en-two-prog span { display: block; font-size: 10.5px; color: var(--tx3); margin-top: 3px; letter-spacing: .04em; }
.en-two-prog.done { border-color: var(--ac); box-shadow: 0 0 20px var(--glow); }
.en-two { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 640px) { .en-two { grid-template-columns: 1fr 1fr; } }
.en-two-card { position: relative; display: flex; flex-direction: column; align-items: flex-start; gap: 6px; text-align: left; font: inherit; color: var(--tx); cursor: pointer;
  background: var(--bg2); border: 1px solid var(--bd); border-radius: 20px; padding: 18px 18px 16px; min-height: 172px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); overflow: hidden; transition: transform .2s, border-color .2s, box-shadow .25s; }
.en-two-card::before { content: ""; position: absolute; inset: -40% 40% 40% -20%; background: radial-gradient(ellipse at center, var(--ac-soft), transparent 70%); pointer-events: none; }
.en-two-card:nth-child(2)::before { background: radial-gradient(ellipse at center, rgba(127,176,255,.18), transparent 70%); }
.en-two-card:hover { transform: translateY(-2px); border-color: var(--tx3); box-shadow: var(--sh2); }
.en-two-card:active { transform: translateY(1px); }
.en-two-card > * { position: relative; }
.en-two-k { display: flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; letter-spacing: .08em; color: var(--ac); text-transform: uppercase; }
.en-two-card:nth-child(2) .en-two-k { color: #7FB0FF; }
:root[data-theme="light"] .en-two-card:nth-child(2) .en-two-k { color: #2B5BA8; }
.en-two-ok { font-style: normal; display: inline-flex; align-items: center; gap: 3px; font-size: 10.5px; background: var(--btn); color: #0A0F08; border-radius: 999px; padding: 1px 8px; letter-spacing: 0; }
.en-two-card b { font-size: 20px; line-height: 1.3; font-weight: 700; margin-top: 4px; }
.en-two-card small { font-size: 12.5px; color: var(--tx2); line-height: 1.5; }
.en-two-go { margin-top: auto; padding-top: 10px; font-size: 14.5px; font-weight: 700; color: var(--tx); }
.en-two-card em { font-style: normal; font-size: 11.5px; color: var(--tx3); }
.en-two-card.done { border-color: color-mix(in srgb, var(--ac) 50%, transparent); }
.en-q-badge { font-style: normal; display: inline-grid; place-items: center; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 999px; background: var(--ac2); color: #fff; font-size: 11px; font-weight: 700; margin-left: 4px; }
.hb-quick.en-quick { grid-template-columns: repeat(3, 1fr); }

/* ── AI 對話頁：今日推薦情境 hero ── */
.en-tk-hero { padding: 18px; }
.en-tk-hero-b { display: flex; align-items: center; gap: 14px; margin: 8px 0 14px; }
.en-tk-hero-tx { flex: 1; min-width: 0; display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.en-tk-hero-tx b { font-size: 22px; line-height: 1.3; }
.en-tk-hero-tx small { font-size: 13px; color: var(--tx2); }
.en-tk-hero-ic { width: 56px !important; height: 56px !important; border-radius: 16px !important; }
.en-tk-hero .btn.primary { width: 100%; padding: 13px; margin-top: 2px; }
.en-tk-grid-sm { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 640px) { .en-tk-grid-sm { grid-template-columns: repeat(4, 1fr); } }
.en-tk-grid-sm .en-tk-scene { padding: 12px 12px 10px; min-height: 0; }
.en-tk-grid-sm .en-tk-scene b { font-size: 14px; }
.en-tk-grid-sm .en-tk-scene small { display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.en-tk-scene.cur { border-color: color-mix(in srgb, var(--ac) 50%, transparent); }
.en-tk-custom { border-style: dashed; }
.en-sec-h { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 14px 0 8px; }
.en-ar-week { margin-bottom: 14px; }

/* ── AI 對話：全屏聊天（照 Speak／TalkMe 的手感） ── */
body.chat-on .bnav, body.chat-on .hd, body.chat-on .levels, body.chat-on .tools-wrap { display: none !important; }
body.chat-on main.wrap { padding-top: 0 !important; }
.en-chat { position: fixed; inset: 0; z-index: 150; display: flex; flex-direction: column; background: var(--bg); }
.en-chat-hd { display: flex; align-items: center; gap: 8px; padding: calc(10px + env(safe-area-inset-top)) 12px 10px; border-bottom: 1px solid var(--line); background: var(--hd); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.en-chat-back, .en-chat-ib { flex: none; width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg2); color: var(--tx); display: grid; place-items: center; cursor: pointer; font: inherit; font-size: 13px; font-weight: 700; }
.en-chat-ib.on { background: var(--ac-soft); border-color: var(--ac); color: var(--tx); }
.en-chat-who { flex: 1; min-width: 0; display: flex; align-items: center; gap: 10px; }
.en-chat-av { flex: none; width: 36px; height: 36px; border-radius: 50%; background: var(--ac-soft); border: 1px solid color-mix(in srgb, var(--ac) 40%, transparent); color: var(--ac); display: grid; place-items: center; }
.en-chat-who b { display: block; font-size: 15px; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.en-chat-who small { display: block; font-size: 11.5px; color: var(--tx3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.en-chat-turn { flex: none; font-size: 12px; color: var(--tx3); font-variant-numeric: tabular-nums; }
.en-chat-end { flex: none; font: inherit; font-size: 13px; font-weight: 700; padding: 8px 12px; border-radius: 10px; border: 1px solid var(--bd); background: var(--bg2); color: var(--tx); cursor: pointer; }
.en-chat-log { flex: 1; overflow-y: auto; padding: 16px 14px 8px; display: flex; flex-direction: column; gap: 14px; -webkit-overflow-scrolling: touch; }
.en-msg { display: flex; gap: 8px; max-width: 92%; }
.en-msg.ai { align-self: flex-start; }
.en-msg.me { align-self: flex-end; flex-direction: row-reverse; }
.en-msg-av { flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--ac-soft); color: var(--ac); display: grid; place-items: center; margin-top: 2px; }
.en-msg-b { min-width: 0; border-radius: 18px; padding: 11px 14px; background: var(--bg2); border: 1px solid var(--line); }
.en-msg.ai .en-msg-b { border-top-left-radius: 6px; }
.en-msg.me .en-msg-b { border-top-right-radius: 6px; background: var(--ac-soft); border-color: color-mix(in srgb, var(--ac) 35%, transparent); }
.en-msg-en { font-size: 17px; line-height: 1.55; }
.en-msg-acts { display: flex; gap: 6px; margin-top: 8px; }
.en-msg-acts button { font: inherit; font-size: 12px; display: inline-flex; align-items: center; gap: 4px; padding: 4px 9px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg3); color: var(--tx2); cursor: pointer; }
.en-msg-acts button:hover { color: var(--tx); border-color: var(--bd); }
.en-msg-tr { display: none; margin-top: 8px; font-size: 13.5px; color: var(--tx2); line-height: 1.6; padding-top: 8px; border-top: 1px dashed var(--line); }
.en-msg-tr.show { display: block; }
.en-msg-fix { margin-top: 9px; padding: 9px 11px; border-radius: 12px; background: rgba(255,122,89,.1); border: 1px solid rgba(255,122,89,.3); font-size: 14px; }
.en-msg-fix small { display: flex; align-items: center; gap: 4px; font-size: 11px; color: var(--ac2); font-weight: 700; letter-spacing: .04em; margin-bottom: 3px; }
.en-msg-fix [lang="en"] { font-size: 15.5px; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.en-msg-fix button { border: 0; background: var(--bg3); color: var(--tx2); width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; cursor: pointer; }
.en-msg-fix em { display: block; font-style: normal; font-size: 12.5px; color: var(--tx2); margin-top: 4px; line-height: 1.55; }
.en-msg-good { display: inline-flex; align-items: center; gap: 3px; margin-top: 6px; font-size: 11.5px; color: var(--ok); font-weight: 700; }
.en-msg.typing .en-msg-b { display: flex; gap: 5px; padding: 14px 16px; }
.en-msg.typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--tx3); animation: tkDot 1.2s infinite; }
.en-msg.typing i:nth-child(2) { animation-delay: .2s; } .en-msg.typing i:nth-child(3) { animation-delay: .4s; }
@keyframes tkDot { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-4px); opacity: 1; } }
.en-chat-done { align-self: center; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; color: var(--tx2); font-size: 14px; padding: 8px 0; }
.en-chat-dock { flex: none; border-top: 1px solid var(--line); background: var(--hd); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); }
.en-chat-hints small { display: block; font-size: 11px; color: var(--tx3); letter-spacing: .08em; margin-bottom: 6px; }
.en-chat-hintrow { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; padding-bottom: 4px; margin-bottom: 6px; }
.en-chat-hintrow::-webkit-scrollbar { display: none; }
.en-chat-hint { flex: 0 0 auto; max-width: 78vw; text-align: left; font: inherit; color: var(--tx); background: var(--bg2); border: 1px solid var(--line); border-radius: 14px; padding: 9px 12px; cursor: pointer; display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; align-items: center; }
.en-chat-hint b { font-size: 14px; font-weight: 600; grid-column: 1; }
.en-chat-hint em { font-style: normal; font-size: 11.5px; color: var(--tx3); grid-column: 1; }
.en-chat-hint span { grid-column: 2; grid-row: 1 / span 2; color: var(--ac); }
.en-chat-type { display: flex; gap: 8px; margin-bottom: 10px; }
.en-chat-in { flex: 1; min-width: 0; font: inherit; font-size: 15px; padding: 11px 14px; border-radius: 14px; border: 1px solid var(--bd); background: var(--bg3); color: var(--tx); outline: 0; }
.en-chat-in:focus { border-color: var(--ac); }
.en-chat-toko, .en-chat-send { flex: none; font: inherit; font-size: 12.5px; font-weight: 700; padding: 0 12px; border-radius: 14px; border: 1px solid var(--bd); background: var(--bg2); color: var(--tx); cursor: pointer; }
.en-chat-send { width: 44px; background: var(--btn); color: #0A0F08; border-color: transparent; display: grid; place-items: center; }
.en-chat-ctrl { display: flex; align-items: center; justify-content: center; gap: 22px; }
.en-chat-side { width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line); background: var(--bg2); color: var(--tx2); display: grid; place-items: center; cursor: pointer; }
.en-chat-side.on { border-color: var(--ac); color: var(--ac); }
.en-chat-mic { position: relative; width: 76px; height: 76px; border-radius: 50%; border: 0; background: var(--btn); color: #0A0F08; display: grid; place-items: center; cursor: pointer; box-shadow: 0 10px 30px var(--glow); transition: transform .15s; --lv: 1; }
.en-chat-mic:active { transform: scale(.96); }
.en-chat-mic .en-chat-ring { position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--ac); opacity: 0; transform: scale(1); pointer-events: none; }
.en-chat-mic.rec { background: var(--ac2); color: #fff; box-shadow: 0 10px 30px rgba(255,122,89,.4); }
.en-chat-mic.rec .en-chat-ring { opacity: .6; border-color: var(--ac2); transform: scale(var(--lv)); transition: transform .08s linear; }
.en-chat-mic.busy { background: var(--bg3); color: var(--tx2); box-shadow: none; }
.en-chat-mic.busy .en-chat-mic-ic { animation: tkSpin 1s linear infinite; }
@keyframes tkSpin { to { transform: rotate(360deg); } }
.en-chat-status { text-align: center; font-size: 12.5px; color: var(--tx3); margin-top: 8px; min-height: 1.2em; }
.en-chat-status.rec { color: var(--ac2); } .en-chat-status.interim { color: var(--tx); font-size: 14px; } .en-chat-status.err { color: var(--ac2); } .en-chat-status.busy { color: var(--tx2); }

.en-chat-type[hidden] { display: none; }

/* ── 對話標頭兩列＋iOS Safari 高度修正（2026-10-23 Mia：麥克風不見、標頭太擠、要能切口音） ── */
#tkOverlay { position: fixed; inset: 0; z-index: 150; background: var(--bg); }
#tkOverlay:empty { display: none; }
/* 付費牆／登入／查字等彈窗要蓋在對話層上面（2026-10-23 Mia：按了看 Premium 沒反應，關掉對話才跳出來） */
.quiz-bg, .wsheet-bg, .wsheet, .set-bg, #setSheet, .toast { z-index: 400; }
.quiz-bg { z-index: 400; } .wsheet-bg { z-index: 410; } .wsheet { z-index: 420; } .set-bg { z-index: 430; } #setSheet { z-index: 440; } .toast { z-index: 450; }
#tkOverlay .en-chat { position: absolute; inset: 0; height: auto; }
.en-chat-log { min-height: 0; }
.en-chat-hd { display: block; padding: calc(8px + env(safe-area-inset-top)) 12px 8px; }
.en-chat-hd1 { display: flex; align-items: center; gap: 10px; }
.en-chat-hd2 { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.en-chat-hd2 .en-chat-turn { margin-left: auto; }
.en-chat-hd2 .en-chat-ib { width: 32px; height: 32px; border-radius: 9px; }
.en-chat-voice { font: inherit; font-size: 12.5px; font-weight: 700; display: inline-flex; align-items: center; gap: 5px; padding: 6px 11px; border-radius: 999px; border: 1px solid color-mix(in srgb, var(--ac) 50%, transparent); background: var(--ac-soft); color: var(--tx); cursor: pointer; }
.en-chat-vpick { margin-top: 8px; padding: 10px 12px; border-radius: 14px; background: var(--bg2); border: 1px solid var(--line); }
.en-chat-vpick .pos-row { margin: 0 0 6px; }
.en-chat-vpick small { font-size: 11.5px; color: var(--tx3); }
.en-chat-vpick[hidden] { display: none; }
.en-chat-who b { font-size: 16px; }
body.chat-on .cd-float { display: none !important; }

.en-chat-hints-h { display: flex; align-items: center; justify-content: space-between; width: 100%; font: inherit; background: none; border: 0; padding: 0 0 6px; color: var(--tx3); cursor: pointer; }
.en-chat-hints-h small { font-size: 11px; letter-spacing: .08em; margin: 0; }
.en-chat-hints-h span { font-size: 11.5px; color: var(--ac); }
.en-chat-fail { color: var(--ac2); font-size: 13px; }

/* ── 2026-10-23 全站 review 修正 ── */
.en-tagrow { max-height: none; overflow: visible; }          /* 單字表分類不要被切半（之前限高 96px 第三排看不到） */
@media (max-width: 600px) { .srs-stats-grid { grid-template-columns: repeat(2, 1fr); } }   /* 複習頁四格數字：手機 2×2，不要一格孤單掉到第二排 */
.en-pf-stats { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 600px) { .en-pf-stats { grid-template-columns: repeat(4, 1fr); } }
.pm-row { padding-right: 4px; }
.ft { padding-left: 16px; padding-right: 16px; }
/* 捲動區與清單：分隔線、不要貼邊 */
.en-culist .en-cucard + .en-cucard, .ph-card + .ph-card, .g-card + .g-card { margin-top: 10px; }
.wrap { padding-left: 16px; padding-right: 16px; }

/* 在 LINE／Threads／IG 內建瀏覽器打開時的提醒條 */
.en-iab { display: flex; flex-direction: column; gap: 10px; background: var(--bg2); border: 1px solid color-mix(in srgb, var(--ac2) 45%, transparent); border-radius: 14px; padding: 12px 14px; margin-bottom: 14px; }
.en-iab-tx b { display: block; font-size: 14px; margin-bottom: 3px; }
.en-iab-tx span { font-size: 12.5px; color: var(--tx2); line-height: 1.6; }
.en-iab-btns { display: flex; gap: 8px; align-items: center; }
.en-iab-btns .btn { flex: 1; padding: 9px 10px; font-size: 13px; }
.en-iab-x { flex: none; width: 34px; height: 34px; border-radius: 10px; border: 1px solid var(--line); background: none; color: var(--tx3); cursor: pointer; }

/* ── 複習總入口 ── */
.rv-sec { padding: 16px; }
.rv-h { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.rv-h b { font-size: 16px; }
.rv-h small { margin-left: auto; font-size: 11.5px; color: var(--tx3); text-align: right; }
.rv-ic { flex: none; width: 32px; height: 32px; border-radius: 10px; background: var(--ac-soft); color: var(--ac); display: grid; place-items: center; }
.rv-nums { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 6px 0 12px; }
.rv-nums div { background: var(--bg3); border: 1px solid var(--line); border-radius: 12px; padding: 10px 6px; text-align: center; }
.rv-nums b { display: block; font-size: 20px; }
.rv-nums span { font-size: 11px; color: var(--tx3); }
.rv-btn { width: 100%; padding: 12px; margin-top: 8px; }
.rv-ok { display: flex; align-items: center; gap: 6px; color: var(--ok); font-size: 13.5px; margin: 6px 0 4px; }
.rv-list { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.rv-item { display: flex; align-items: center; gap: 10px; width: 100%; text-align: left; font: inherit; color: var(--tx); background: var(--bg3); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; cursor: pointer; }
.rv-item-l { flex: none; width: 30px; display: grid; place-items: center; color: var(--ac); }
.rv-item-t { flex: 1; min-width: 0; }
.rv-item-t b { display: block; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rv-item-t small { font-size: 11.5px; color: var(--tx3); }
.rv-item-r { flex: none; color: var(--tx3); }
.rv-row { display: flex; gap: 8px; }
.rv-row .btn { flex: 1; }
.rv-fix { padding: 6px 2px; }
.rv-fix small { display: block; font-size: 11px; color: var(--tx3); letter-spacing: .06em; margin-bottom: 4px; }
.rv-fix-mine { background: var(--bg3); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; margin-bottom: 10px; color: var(--tx2); }
.rv-fix-mine [lang="en"] { font-size: 16px; text-decoration: line-through; text-decoration-color: var(--ac2); }
.rv-fix-good { background: var(--ac-soft); border: 1px solid color-mix(in srgb, var(--ac) 40%, transparent); border-radius: 12px; padding: 12px; }
.rv-fix-good small { color: var(--ac); }
.rv-fix-good [lang="en"] { font-size: 19px; line-height: 1.5; font-weight: 600; }
.rv-fix-good em { display: block; font-style: normal; font-size: 12.5px; color: var(--tx2); margin-top: 8px; line-height: 1.6; }
.rv-fix-acts { display: flex; gap: 8px; margin-top: 10px; }
.rv-fix-acts .btn { flex: 1; padding: 9px 8px; font-size: 13px; display: inline-flex; align-items: center; justify-content: center; gap: 5px; }
.rv-fix-acts .btn.rec { background: var(--ac2); color: #fff; border-color: var(--ac2); }
.rv-fix-heard { min-height: 48px; margin: 12px 0; padding: 10px 12px; border-radius: 12px; border: 1px dashed var(--line); }
.rv-fix-heard [lang="en"] { font-size: 16px; margin-bottom: 6px; }
.rv-fix-heard del, .rv-fix-heard .ng { color: var(--ac2); }
.rv-fix-nav { display: flex; gap: 8px; }
.rv-fix-nav .btn { flex: 1; padding: 11px; }
.rv-fix-heard .miss { color: var(--ac2); text-decoration: underline; } .rv-fix-heard .extra { color: var(--ac2); opacity: .7; } .rv-fix-heard .ok { color: var(--tx); }

.en-chat-hint.playing { border-color: var(--ac); box-shadow: 0 0 0 1px var(--ac) inset; }
.en-chat-toko-box { background: var(--ac-soft); border: 1px solid color-mix(in srgb, var(--ac) 40%, transparent); border-radius: 14px; padding: 10px 12px; margin-bottom: 8px; }
.en-chat-toko-box small { display: block; font-size: 11.5px; color: var(--tx3); margin-bottom: 6px; }
.en-chat-toko-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.en-chat-toko-row b { flex: 1 1 100%; font-size: 16px; font-weight: 600; }
.en-chat-toko-row .btn { padding: 7px 12px; font-size: 13px; }
.en-chat-toko-x { margin-left: auto; width: 30px; height: 30px; border-radius: 8px; border: 1px solid var(--line); background: none; color: var(--tx3); cursor: pointer; }
.en-chat-opt { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--line); font-size: 13px; }
.en-chat-opt .en-chat-ib { width: auto; padding: 0 12px; height: 30px; }

/* 淺色＝白底黑字（探長J 2026-10-24：黑白兩色、跟手機系統）：主按鈕黑底白字、玻璃面板改實色 */
:root[data-theme="light"] .btn.primary, :root[data-theme="light"] .hb-go, :root[data-theme="light"] .en-chat-send, :root[data-theme="light"] .cd-play, :root[data-theme="light"] .en-chat-mic, :root[data-theme="light"] .sheet-premium, :root[data-theme="light"] .pa-upgrade { background: #0B0D10; color: #FFFFFF; }
:root[data-theme="light"] .btn.primary:hover, :root[data-theme="light"] .hb-go:hover { box-shadow: 0 8px 24px rgba(0,0,0,.18); }
:root[data-theme="light"] .lv-btn.on { background: #0B0D10; color: #fff; }
:root[data-theme="light"] .lv-btn.on small { color: rgba(255,255,255,.7); }
:root[data-theme="light"] .en-two-ok, :root[data-theme="light"] .pw-tag, :root[data-theme="light"] .en-greet-fire { background: #0B0D10; color: #fff; }
:root[data-theme="light"] .en-card, :root[data-theme="light"] .vcard, :root[data-theme="light"] .hb-plan, :root[data-theme="light"] .en-two-card, :root[data-theme="light"] .en-tk-scene, :root[data-theme="light"] .en-cucard, :root[data-theme="light"] .fc-face, :root[data-theme="light"] .pw-plan, :root[data-theme="light"] .en-msg-b, :root[data-theme="light"] .rv-item, :root[data-theme="light"] .en-chat-hint { backdrop-filter: none; -webkit-backdrop-filter: none; }
:root[data-theme="light"] .en-two-card::before { opacity: .5; }
:root[data-theme="light"] .en-chat-mic { box-shadow: 0 10px 28px rgba(0,0,0,.22); }
:root[data-theme="light"] .en-chat-mic.rec { background: var(--ac2); }
:root[data-theme="light"] .pa-upgrade b, :root[data-theme="light"] .pa-upgrade .pa-up-tx span, :root[data-theme="light"] .sheet-premium .bi { color: #fff; }

.en-msg.me .en-msg-b { position: relative; padding-right: 34px; }
.en-msg-more { position: absolute; top: 6px; right: 6px; width: 26px; height: 26px; border-radius: 50%; border: 0; background: var(--line); color: var(--tx2); font-weight: 700; cursor: pointer; line-height: 1; }
.en-msg-menu { position: absolute; right: 0; top: 36px; z-index: 5; min-width: 170px; background: var(--bg3); border: 1px solid var(--bd); border-radius: 12px; box-shadow: var(--sh2); overflow: hidden; }
.en-msg-menu button { display: flex; align-items: center; gap: 8px; width: 100%; text-align: left; font: inherit; font-size: 13.5px; padding: 10px 12px; border: 0; border-bottom: 1px solid var(--line); background: none; color: var(--tx); cursor: pointer; }
.en-msg-menu button:last-child { border-bottom: 0; color: var(--ac2); }
/* 文章播放列：手機上一排放下（播放鍵伸縮、上一句下一句在兩側、計數靠右） */
.cd-main { display: flex; align-items: center; gap: 8px; flex-wrap: nowrap; }
.cd-main .cd-play { flex: 1 1 auto; min-width: 0; justify-content: center; }
.cd-main .cd-pos { margin-left: 2px; white-space: nowrap; font-size: 12.5px; color: var(--tx3); }
.cd-opts { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }

/* 桌機：對話層置中 760px（要放在 #tkOverlay .en-chat{inset:0} 之後才蓋得過） */
@media (min-width: 900px) {
  #tkOverlay .en-chat { left: 50%; right: auto; width: 760px; transform: translateX(-50%); border-left: 1px solid var(--line); border-right: 1px solid var(--line); }
  #setSheet, .sheet { left: 50%; right: auto; width: min(720px, 100%); transform: translate(-50%, 105%); border-radius: 20px 20px 0 0; }
  .set-open #setSheet, .more-open .sheet { transform: translate(-50%, 0); }
}

/* 程度測驗（placement.js）＋闖關「已學過」 */
.pq-skip{font-size:10.5px;color:var(--tx3);white-space:nowrap}
.pq-plc{display:flex;align-items:center;gap:8px;width:100%;margin-top:12px;padding:12px 14px;border:1px dashed var(--bd);border-radius:12px;background:none;color:var(--ac);font:inherit;font-size:13.5px;font-weight:600;text-align:left;cursor:pointer}
.pq-plc svg{flex:none;width:16px;height:16px}
.plc-intro{text-align:center;padding:10px 4px 6px}
.plc-intro h3{font-size:19px;margin:10px 0 6px}
.plc-il{display:flex;justify-content:center;margin:6px 0}
.plc-btns{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.plc-btns .btn{width:100%;padding:13px}
.plc-lv{font-size:40px;font-weight:900;color:var(--ac);line-height:1.1;margin-top:4px}
.plc-lv-s{font-size:13px;color:var(--tx2);margin-bottom:14px}
.plc-hist{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin:6px 0 12px}
.plc-hist div{border:1px solid var(--bd);border-radius:12px;padding:8px 12px;min-width:76px}
.plc-hist span{display:block;font-size:12px;color:var(--tx2)}
.plc-hist b{font-size:20px}
.plc-hist small{font-size:12px;color:var(--tx3)}

/* 字幕模式（全部／英文／中文／隱藏，articles.js cdTrMode） */
.cd-seg { display: inline-flex; border: 1px solid var(--bd); border-radius: 10px; overflow: hidden; }
.cd-seg button { background: none; border: 0; border-right: 1px solid var(--bd); color: var(--tx2); font: inherit; font-size: 12.5px; padding: 6px 10px; cursor: pointer; }
.cd-seg button:last-child { border-right: 0; }
.cd-seg button.on { background: var(--ac-soft); color: var(--tx); font-weight: 700; }
.cd-lines.tr-zh .cd-ko, .cd-lines.tr-hide .cd-ko { filter: blur(7px); transition: filter .2s; user-select: none; }
.cd-lines.tr-zh .cd-line.on .cd-ko, .cd-lines.tr-hide .cd-line.on .cd-ko { filter: none; user-select: auto; }
.cd-lines.tr-hide .cd-tr { display: none; }

/* 重點說法（articles.js arKpHtml） */
mark.en-kp { background: color-mix(in srgb, var(--il-amber, #E2A53A) 32%, transparent); color: inherit; border-radius: 4px; padding: 0 2px; cursor: pointer; }
.en-kp-list { display: flex; flex-direction: column; gap: 12px; margin-top: 10px; }
.en-kp-card { border: 1px solid var(--bd); border-radius: 14px; padding: 14px; background: var(--bg2); transition: box-shadow .3s; }
.en-kp-card.flash { box-shadow: 0 0 0 2px var(--ac); }
.en-kp-h { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.en-kp-h b { font-size: 18px; }
.en-kp-h span { color: var(--tx2); font-size: 14px; }
.en-kp-use { margin-top: 8px; font-size: 13.5px; line-height: 1.65; color: var(--tx2); }
.en-kp-use small { display: block; font-size: 11px; color: var(--tx3); letter-spacing: .08em; margin-bottom: 2px; }
.en-kp-exs { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.en-kp-ex { display: block; max-width: 92%; text-align: left; border: 1px solid var(--bd); background: var(--bg); color: var(--tx); border-radius: 14px 14px 14px 4px; padding: 10px 12px; font: inherit; cursor: pointer; }
.en-kp-ex.r { align-self: flex-end; border-radius: 14px 14px 4px 14px; background: var(--ac-soft); }
.en-kp-ex span { display: block; font-size: 15px; line-height: 1.5; }
.en-kp-ex small { display: block; font-size: 12.5px; color: var(--tx2); margin-top: 3px; }
.en-kp-q { font-size: 20px; font-weight: 700; line-height: 1.5; }

/* 翻牌回想／例句連播（review.js） */
.rv-bsub { display: block; font-size: 11px; color: var(--tx3); font-weight: 400; margin-top: 2px; }
.rv-blind { cursor: pointer; }
.rv-blind-m { font-size: 26px; font-weight: 800; line-height: 1.4; }
.rv-blind-exm { color: var(--tx2); font-size: 14.5px; margin-top: 10px; line-height: 1.6; }
.rv-blind-ans { border-top: 1px dashed var(--line); margin-top: 16px; padding-top: 14px; }
.rv-blind-ans .qmain { font-size: 34px; }
.rv-listen .qmain { font-size: 36px; }
.rv-listen-ctl { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 16px; }