/* 全功能预览版专用样式 */
.counter.jump-counter { border: 0; background: transparent; padding: 0; font: inherit; color: inherit; cursor: pointer; }
.counter.jump-counter .tiny { color: var(--primary); margin-left: 4px; font-size: 10px; }
.study-scrubber { margin: 10px 0 12px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 14px; background: #faf7f0; }
.study-scrubber input[type="range"] { width: 100%; accent-color: var(--primary); height: 28px; }
.scrubber-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.scrubber-actions { display: flex; gap: 4px; flex-wrap: wrap; }
.step-btn.small { padding: 4px 7px; font-size: 10px; border-radius: 8px; }
.status-pill.seen { background: #e8f1ec; color: #356b50; }
.grammar-note { margin-top: 12px; padding: 11px 13px; border-radius: 12px; background: var(--primary-soft); display: flex; flex-direction: column; gap: 3px; }
.grammar-note b { font-size: 11px; color: var(--primary-deep); }
.grammar-note span { font-size: 11px; color: var(--ink-2); }
.grammar-note small { font-size: 10px; color: var(--muted); line-height: 1.6; }

.jump-sheet { padding: 8px 0 18px; }
.jump-input-row { display: flex; gap: 8px; margin: 14px 0; }
.jump-input-row input { flex: 1; min-width: 0; border: 1px solid var(--line-strong); border-radius: 12px; padding: 11px 12px; font: inherit; background: var(--card); }
.jump-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }

.px-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.px-card { display: flex; flex-direction: column; gap: 6px; padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); text-decoration: none; color: inherit; }
.px-card:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.px-card b { font-size: 15px; }
.px-card span { color: var(--muted); font-size: 11px; line-height: 1.55; }
.px-card .px-tag { color: var(--primary); font-weight: 700; font-size: 10px; }
.px-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 14px 0 20px; }
.px-stat { padding: 12px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); }
.px-stat b { display: block; font-family: var(--font-serif); font-size: 24px; }
.px-stat span { color: var(--muted); font-size: 10px; }
.px-passage { padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: #faf7f0; line-height: 1.95; font-family: var(--font-serif); font-size: 16px; }
.px-gloss { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.px-gloss button { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 4px 9px; font-size: 11px; cursor: pointer; }
.px-question { padding: 16px; border: 1px solid var(--line); border-radius: 16px; background: var(--card); margin: 12px 0; }
.px-question > p { margin: 0 0 10px; font-weight: 700; }
.px-options { display: grid; gap: 7px; }
.px-option { text-align: left; padding: 10px 12px; border: 1px solid var(--line-strong); border-radius: 11px; background: #fffdf8; font: inherit; font-size: 12px; cursor: pointer; }
.px-option:hover { border-color: var(--primary); }
.px-option.is-picked { border-color: var(--primary); background: var(--primary-soft); }
.px-option.is-correct { border-color: var(--green); background: var(--green-soft); }
.px-option.is-wrong { border-color: var(--vowel); background: var(--vowel-soft); }
.px-feedback { margin-top: 9px; padding: 9px 11px; border-radius: 10px; background: #f8f5ed; color: var(--ink-2); font-size: 11px; line-height: 1.65; }
.px-actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0; }
.px-note { color: var(--muted); font-size: 11px; line-height: 1.7; }
.px-textarea { width: 100%; min-height: 120px; resize: vertical; border: 1px solid var(--line-strong); border-radius: 12px; padding: 12px; font: inherit; line-height: 1.65; background: var(--card); }
.px-model { margin-top: 12px; padding: 14px; border-radius: 12px; background: var(--primary-soft); font-size: 13px; line-height: 1.7; }
.px-error { padding: 12px; border: 1px solid var(--line); border-radius: 12px; margin: 8px 0; background: var(--card); font-size: 12px; line-height: 1.6; }
.px-error b { color: var(--vowel); }
.px-word-link { border: 0; background: transparent; color: var(--primary); font: inherit; text-decoration: underline; cursor: pointer; padding: 0; }
.px-word-row { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-bottom: 1px solid var(--line); font-size: 12px; }
.px-terms { display: grid; gap: 7px; margin: 10px 0; }
.px-term { border: 1px solid var(--line); border-radius: 11px; background: var(--card); padding: 8px 11px; font-size: 12px; }
.px-term summary { cursor: pointer; color: var(--primary-deep); font-weight: 700; }
.px-term p { margin: 7px 0 0; color: var(--ink-2); line-height: 1.65; }
.px-lookup-row { display: flex; gap: 8px; margin: 12px 0; }
.px-lookup-row input { flex: 1; min-width: 0; }
.px-lookup-row .btn { flex: none; }
.px-build-line { min-height: 52px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; padding: 10px; border: 1px dashed var(--line-strong); border-radius: 12px; margin: 10px 0; }
.px-build-bank { display: flex; flex-wrap: wrap; gap: 7px; margin: 10px 0 14px; }
.px-build-token { border: 1px solid var(--line-strong); border-radius: 10px; background: var(--card); padding: 8px 11px; font: inherit; font-size: 13px; cursor: pointer; }
.px-build-token:hover { border-color: var(--primary); background: var(--primary-soft); }
.px-word-row b { min-width: 78px; font-family: var(--font-serif); font-size: 15px; }
.px-word-row span { flex: 1; color: var(--muted); }
.px-dict-list { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--card); }
.px-dict-row { display: flex; align-items: center; gap: 9px; padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 12px; }
.px-dict-row:last-child { border-bottom: 0; }
.px-dict-num { width: 24px; color: var(--muted); font-size: 10px; }
.px-dict-zh { flex: 1; min-width: 0; }
.px-dict-answer { min-width: 80px; font-family: var(--font-serif); font-weight: 700; color: var(--primary-deep); }
.px-dict-answer.is-hidden { visibility: hidden; }
@media print {
  .sidebar, .bottom-nav, .topbar, .px-actions, .page-head .btn { display: none !important; }
  .main-shell { margin: 0 !important; }
  .view { padding: 0 !important; }
  .px-dict-answer.is-hidden { visibility: visible; }
}

@media (max-width: 860px) {
  .px-grid { grid-template-columns: 1fr; }
  .px-stats { grid-template-columns: repeat(2, 1fr); }
  .study-actions {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 78px;
    z-index: 45;
    display: flex;
    gap: 6px;
    padding: 7px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255, 253, 248, .96);
    box-shadow: 0 10px 28px rgba(29, 43, 47, .16);
    backdrop-filter: blur(12px);
  }
  .study-actions .action-btn { min-width: 0; flex: 1; padding: 8px 4px; }
  .study-actions .action-btn small { display: none; }
  .study-card { padding-bottom: 96px; }
  .bottom-nav a { font-size: 9px; padding: 4px 1px; }
  .bottom-nav .nav-icon { width: 18px; height: 18px; }
}