/* ---- 自學區 ---- */
.study-scope .row select{flex:1;min-width:0}
@media (max-width:420px){.study-scope .row select{flex:1 1 100%}}
.study-modes{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:12px 0}
.mode-card{display:flex;flex-direction:column;gap:4px;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--ai);border-radius:var(--radius);padding:12px;color:var(--ink);min-height:44px}
.mode-card.game{border-left-color:var(--shu)}
.mode-card b{font-size:17px}
.mode-card span{font-size:13px;color:var(--muted);line-height:1.5}
.mode-card i{font-style:normal;font-size:12px;color:#8f6f12}
.st-head [data-r]{white-space:nowrap}
.st-bar{margin:0 0 10px}
.st-box{min-height:120px}
.st-end{margin-top:12px}
.st-prompt{text-align:center;margin:6px 0}
/* 測驗回顧 */
.test-review .card{display:flex;gap:8px;align-items:center;padding:8px 12px;margin:6px 0;flex-wrap:wrap}
.test-review .card.ok{border-left:4px solid var(--matcha)}
.test-review .card.bad{border-left:4px solid var(--bad)}
.tr-n{font-size:12px;color:var(--muted);min-width:20px}.tr-mark{font-weight:700;color:var(--matcha)}.card.bad .tr-mark{color:var(--bad)}
.tr-q{font-size:20px}
/* 配對 */
.match-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:8px 0}
.match-col{display:flex;flex-direction:column;gap:6px;min-width:0}
.match-tile{background:#fff;border:2px solid var(--line);border-radius:10px;padding:8px 6px;font-size:18px;font-family:inherit;color:var(--ink);cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:center;overflow-wrap:anywhere}
.match-tile.jp{font-size:24px}
.match-tile.sel{border-color:var(--ai);background:#eef2f7}
.match-tile.done{opacity:.35;border-color:var(--matcha);background:#eef4ea}
.match-tile.bad{border-color:var(--bad);background:#f8e6e3}
.st-clock{font-size:14px;color:var(--ai);font-variant-numeric:tabular-nums;white-space:nowrap}
/* 打地鼠 */
.whack-field{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:10px 0}
.hole{position:relative;aspect-ratio:1.1;background:radial-gradient(ellipse at 50% 80%,#5a4634 0 40%,#e8dfc9 42%);border-radius:50%/40%;border:2px solid var(--line);display:flex;align-items:flex-end;justify-content:center;overflow:hidden}
.mole{width:92%;margin-bottom:6px;border:2px solid var(--kin);border-radius:12px 12px 6px 6px;background:#fff8e6;font-family:inherit;font-size:18px;padding:10px 4px;cursor:pointer;color:var(--ink);overflow-wrap:anywhere;animation:pop .25s ease-out}
.mole.jp{font-size:24px}
.mole.ok{background:#eef4ea;border-color:var(--matcha)}.mole.bad{background:#f8e6e3;border-color:var(--bad)}
@keyframes pop{from{transform:translateY(100%)}to{transform:none}}
/* 迷宮 */
.maze-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:4px;margin:10px auto;max-width:360px}
.maze-cell{aspect-ratio:1;background:#ede6d6;background-image:repeating-linear-gradient(45deg,transparent 0 4px,rgba(0,0,0,.08) 4px 6px);border:1px solid var(--line);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:13px;text-align:center;overflow:hidden;padding:2px;line-height:1.2;overflow-wrap:anywhere}
.maze-cell.token,.maze-cell.player,.maze-cell.ghost{background-image:none}
.maze-cell.player span,.maze-cell.ghost span{font-size:22px}
.maze-cell.token{background:#fff8e6;border-color:var(--kin)}
.maze-cell.token .jp{font-size:20px}
.maze-cell.player{background:#eef4ea;border-color:var(--matcha);font-size:26px}
.maze-cell.ghost{background:#f8e6e3;border-color:var(--bad);font-size:26px}
.dpad{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;max-width:360px;margin:8px auto}
.dpad .btn{font-size:22px;padding:8px 0}
/* 開箱 */
.box-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:10px 0}
.box{position:relative;aspect-ratio:1;border:2px solid var(--kin);border-radius:12px;background:#fff8e6;font-family:inherit;color:var(--ink);cursor:pointer;padding:4px;overflow:hidden}
.box .lid{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,var(--ai),#2c4f7e);color:#fff;font-size:26px;border-radius:10px;transition:transform .25s}
.box.open .lid{transform:translateY(-102%)}
.box .inner{display:flex;align-items:center;justify-content:center;height:100%;font-size:16px;overflow-wrap:anywhere;line-height:1.2}
.box .inner.jp{font-size:24px}
.box.done{border-color:var(--matcha);background:#eef4ea}
/* 轉盤 */
.wheel-wrap{position:relative;width:min(280px,80vw);margin:8px auto}
.wheel-pin{position:absolute;top:-14px;left:50%;transform:translateX(-50%);color:var(--shu);font-size:24px;z-index:2}
.wheel{position:relative;width:100%;aspect-ratio:1;border-radius:50%;border:6px solid var(--kin);box-shadow:0 0 0 3px #fff8e6;transition:transform 2.5s cubic-bezier(.17,.67,.2,1);overflow:hidden}
/* 標籤以自身中心對準轉盤中心，再沿半徑推到 36% 處；深字淺底框取代白字（對比 ≥ 4.5） */
.wheel-label{position:absolute;left:50%;top:50%;width:80px;height:28px;margin:-14px 0 0 -40px;transform-origin:50% 50%;text-align:center;color:#2b2a28;background:rgba(255,250,240,.9);border-radius:6px;padding:2px 4px;font-size:18px;line-height:24px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.wheel-label.used{opacity:.35}
/* 是非 */
.tf-card{display:flex;align-items:center;justify-content:center;gap:10px;font-size:34px;min-height:100px;flex-wrap:wrap}
.tf-eq{color:var(--muted)}.tf-b{font-size:26px}
.tf-card.ok{border-color:var(--matcha);background:#eef4ea}.tf-card.bad{border-color:var(--bad);background:#f8e6e3}
.tf-bar{margin:6px 0 10px}.tf-bar i{background:var(--shu)}
.tf-choices .choice{font-size:20px}
/* 列印 */
.print-sheet{overflow-x:auto}
.ps-title{margin:0 0 10px}
.ps-table{border-collapse:collapse;width:100%;font-size:14px}
.ps-table th,.ps-table td{border:1px solid var(--line);padding:4px 6px;text-align:center;vertical-align:top}
.ps-table th{background:#efe6d2;font-weight:600}
.ps-table td b{display:block;font-size:22px;line-height:1.1}.ps-table td small{color:var(--muted)}
.ps-table.vocab td{text-align:left}
.ps-test{columns:2;column-gap:24px;font-size:15px;line-height:2}
.ps-answers{margin-top:16px;border-top:1px dashed var(--line);padding-top:8px}
.ps-answers ol{columns:4;column-gap:12px;font-size:13px;line-height:1.7;margin:0}
@media print{header.top,.foot,.no-print,.st-head,h1,.toast{display:none !important}body{background:#fff}main{max-width:none;padding:0}.print-sheet{border:0;box-shadow:none;overflow:visible}.ps-answers{break-before:page}.ps-table td b{font-size:20px}}
/* 證書 */
.cert-card ul{padding-left:20px}
.cert-name{flex:1;min-width:0;font-size:16px;padding:8px 12px;border:1px solid var(--line);border-radius:10px;font-family:inherit;min-height:44px}
.cert-canvas{display:none;width:100%;height:auto;border:1px solid var(--line);border-radius:8px;margin-top:10px}
.cert-canvas.show{display:block;cursor:zoom-in}
.cert-hint{align-self:center}
dialog.cert-zoom{max-width:96vw;max-height:92vh;overflow:auto;padding:8px;border:2px solid var(--kin);border-radius:12px;background:var(--card)}
dialog.cert-zoom::backdrop{background:rgba(31,58,95,.7)}
dialog.cert-zoom img{display:block;width:1200px;max-width:none;height:auto;margin-bottom:8px}
@media (max-width:380px){.study-modes{gap:8px}.mode-card{padding:10px}.maze-cell{font-size:12px}.box .inner{font-size:14px}}
@media (min-width:900px){.study-modes{grid-template-columns:repeat(3,1fr)}.whack-field{max-width:520px;margin:10px auto}.box-grid{max-width:520px;margin:10px auto}.tf-choices{grid-template-columns:1fr 1fr;max-width:420px;margin:0 auto}}