/* 错题复习独立页 — 与 main.css 变量配合 */

.wb-review-page {
  padding-bottom: 48px;
}

/* 巩固测验独立窗口：隐藏错题本主界面，仅保留全屏巩固层 */
html.wb-consolidation-popout .wb-main-chrome {
  display: none !important;
}

html.wb-consolidation-popout .home-sidebar {
  display: none !important;
}

html.wb-consolidation-popout .home-main {
  margin-left: 0;
  padding: 0;
}

html.wb-consolidation-popout .wb-review-page {
  padding-bottom: 0;
}

/* 错题列表内 · 察觉声音（先播后显图） */
.wb-mod-a-review {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.wb-mod-b-review {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.wb-mod-d-review {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.wb-mod-b-pair-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.wb-mod-a-review .learn-caption,
.wb-mod-d-review .learn-caption {
  white-space: pre-line;
}

.wb-review-page .role-bar {
  justify-content: space-between;
  width: 100%;
  flex-wrap: wrap;
  gap: 8px;
}

.wb-hero {
  text-align: left;
  margin-bottom: 16px;
  padding: 22px 24px;
  border-radius: 24px;
  background: var(--panel);
  border: 1px solid rgba(var(--primary-rgb), 0.16);
  box-shadow: 0 10px 28px rgba(28, 42, 58, 0.05);
}

.wb-hero-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0 0 6px;
}

.wb-hero .title {
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 2.2vw, 2.3rem);
  text-align: left;
}

.wb-hero-desc {
  margin: 0;
  max-width: 40rem;
  font-size: 0.88rem;
  color: var(--sub-text);
  line-height: 1.55;
  text-align: left;
}

.wb-panel .wb-panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px 18px;
  align-items: end;
}

.wb-field label {
  display: block;
  font-size: 0.76rem;
  color: var(--sub-text);
  margin-bottom: 6px;
}

.wb-field input[type="date"],
.wb-field select {
  width: 100%;
  font-size: 0.86rem;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
}

.wb-field-ear .ear-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--primary-soft);
  padding: 3px;
  gap: 2px;
}

.wb-field-ear .ear-btn {
  border: 0;
  background: transparent;
  color: var(--sub-text);
  font-size: 0.82rem;
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
}

.wb-field-ear .ear-btn.active {
  background: var(--primary);
  color: #fff;
}

.wb-field-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}
.wb-field-actions-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.wb-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--sub-text);
  cursor: pointer;
}

.wb-checkbox input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.wb-btn {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 0.84rem;
  cursor: pointer;
  color: var(--text);
  transition: background 0.15s ease;
}

.wb-btn:hover {
  background: var(--bg);
}

.wb-btn.secondary {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary);
}

.wb-btn.secondary:hover {
  background: var(--bg);
}

.wb-btn.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.wb-btn.primary:hover {
  filter: brightness(1.06);
}

.wb-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* 错题本内部返回按钮 - 产品化设计 */
.wb-btn-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--sub-text);
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s ease;
}

.wb-btn-back::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 14px;
  background: currentColor;
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M19 12H5M12 19l-7-7 7-7'/%3E%3C/svg%3E");
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M19 12H5M12 19l-7-7 7-7'/%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
}

.wb-btn-back:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
}

.wb-btn-back:active {
  transform: translateY(1px);
}

.wb-stage {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 进度条撑满，不居中 */
.wb-progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
  width: 100%;
}

.wb-progress-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow-sm);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

.wb-progress-pill span {
  font-weight: 500;
  color: var(--sub-text);
  font-size: 0.78rem;
}

.wb-progress-status {
  font-size: 0.78rem;
  color: var(--sub-text);
}

.wb-progress-pill--done {
  background: var(--success-soft);
  border-color: var(--success);
  color: var(--success);
}

.wb-progress-status--ready {
  color: var(--success);
  font-weight: 600;
}

.wb-card-wrap {
  position: relative;
  min-height: 220px;
  perspective: 1200px;
  width: min(560px, 100%);
}

.wb-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 24px 26px;
  box-shadow: 0 2px 12px rgba(35, 79, 191, 0.06);
  min-height: 200px;
  width: 100%;
}

/* —— 错题巩固 · 闪卡式主卡片 —— */
.wb-card.wb-flashcard {
  width: 100%; /* 撑满 wb-card-wrap，由父容器限宽 */
  position: relative;
  overflow: hidden;
  padding: 24px 26px 28px;
  border-radius: 18px;
  background: linear-gradient(165deg, var(--panel) 0%, #f8fafc 42%, var(--panel) 100%);
  border: 1px solid var(--border);
  box-shadow:
    0 1px 2px rgba(var(--primary-rgb), 0.07),
    0 14px 36px rgba(var(--primary-rgb), 0.14),
    0 0 0 1px rgba(255, 255, 255, 0.65) inset;
  transform: translateZ(0);
  transition:
    transform 0.28s cubic-bezier(0.34, 1.2, 0.64, 1),
    box-shadow 0.28s ease,
    border-color 0.22s ease;
  cursor: default;
  outline: none;
}

.wb-card.wb-flashcard::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 50%, var(--primary-hover) 100%);
  opacity: 0.92;
  pointer-events: none;
}

.wb-card.wb-flashcard:hover {
  transform: translateY(-5px) rotateX(0.8deg);
  box-shadow:
    0 4px 8px rgba(var(--primary-rgb), 0.1),
    0 22px 48px rgba(var(--primary-rgb), 0.18),
    0 0 0 1px rgba(255, 255, 255, 0.7) inset;
  border-color: rgba(var(--primary-rgb), 0.45);
}

.wb-card.wb-flashcard:focus-visible {
  box-shadow:
    0 0 0 3px rgba(var(--primary-rgb), 0.35),
    0 14px 36px rgba(var(--primary-rgb), 0.14),
    0 0 0 1px rgba(255, 255, 255, 0.65) inset;
}

.wb-card.wb-flashcard:active {
  transform: translateY(-2px) scale(0.995);
  transition-duration: 0.12s;
}

.wb-card.wb-flashcard--reviewed::before {
  background: linear-gradient(90deg, var(--success) 0%, #8bc4b6 100%);
}

.wb-flashcard-inner {
  position: relative;
  z-index: 1;
}

.wb-flashcard-head-top {
  display: flex;
  justify-content: flex-end;
  width: 100%;
  margin-bottom: 10px;
}

.wb-flashcard-index {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 0.78rem;
  color: var(--sub-text);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 1px 4px rgba(var(--primary-rgb), 0.10);
  font-variant-numeric: tabular-nums;
}

.wb-flashcard-index-label {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sub-text);
  opacity: 0.85;
}

.wb-flashcard-index-cur {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.wb-flashcard-index-of {
  opacity: 0.45;
  font-weight: 500;
}

.wb-flashcard-index-max {
  font-weight: 600;
  color: var(--text);
}

.wb-flashcard-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
}

.wb-flashcard-chip.wb-submod,
.wb-flashcard-chip.wb-card-dist {
  display: inline-flex;
  align-items: center;
  margin: 0;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.76rem;
  background: var(--primary-soft);
  color: var(--primary);
}

.wb-flashcard-chip.wb-card-dist {
  background: var(--bg);
  color: var(--sub-text);
}

.wb-card-layout {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.wb-card-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.wb-card-head .wb-tag {
  margin-bottom: 0;
}

.wb-card .wb-tag {
  display: inline-block;
  font-size: 0.74rem;
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0;
}

.wb-submod {
  font-size: 0.82rem;
  color: var(--sub-text);
  line-height: 1.45;
  font-weight: 400;
}

.wb-card-dist {
  font-size: 0.76rem;
  color: var(--sub-text);
  line-height: 1.4;
}

.wb-card-stem-wrap {
  min-height: 0;
}

.wb-flashcard-body.wb-card-stem-wrap,
.wb-card-stem-wrap.wb-flashcard-body {
  background: var(--bg);
  border-radius: 14px;
  padding: 18px 20px;
  border: 1px solid var(--border-light, var(--border));
  box-shadow: 0 2px 10px rgba(var(--primary-rgb), 0.06) inset;
  transition: box-shadow 0.22s ease, border-color 0.22s ease;
}

.wb-card.wb-flashcard:hover .wb-flashcard-body.wb-card-stem-wrap:not(.pretest-hidden),
.wb-card.wb-flashcard:hover .wb-card-stem-wrap.wb-flashcard-body:not(.pretest-hidden) {
  border-color: rgba(var(--primary-rgb), 0.35);
  box-shadow: 0 2px 14px rgba(var(--primary-rgb), 0.08) inset;
}

.wb-card .wb-stem {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  letter-spacing: 0.02em;
}

.wb-card .ling-notion--card {
  margin-top: 2px;
}
.wb-card .ling-notion--card .ling-notion-row {
  padding: 11px 13px;
  grid-template-columns: 5rem minmax(0, 1fr);
  font-size: 0.9rem;
}
.wb-card .ling-notion--card .ling-notion-label {
  font-size: 0.68rem;
}
.wb-card .ling-notion--card .ling-notion-value {
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.wb-card .wb-reviewed {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(107, 168, 154, 0.45);
  background: linear-gradient(135deg, var(--success-soft, #e6f2ee), #f0faf6);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--success);
}

.wb-reviewed-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--success);
  color: #fff;
  font-size: 0.72rem;
  line-height: 1;
  flex-shrink: 0;
}

.wb-card.wb-flashcard .wb-mod-a-review,
.wb-card.wb-flashcard .wb-mod-b-review,
.wb-card.wb-flashcard .wb-mod-d-review {
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px dashed var(--border);
}

.wb-empty {
  display: none;
  text-align: center;
  padding: 48px 20px;
  color: var(--sub-text);
  font-size: 0.9rem;
  line-height: 1.6;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: 16px;
}

.wb-empty.is-visible {
  display: block;
}

.wb-audio-row {
  display: none;
  margin-top: 14px;
  padding: 12px 14px;
  background: var(--primary-soft);
  border: 1px solid var(--primary-soft);
  border-radius: 12px;
  width: min(560px, 100%);
}

.wb-audio-row.is-visible {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.wb-audio-tip {
  font-size: 0.76rem;
  color: var(--sub-text);
  line-height: 1.45;
  flex: 1;
  min-width: 160px;
}

.wb-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  justify-content: center;
  width: min(560px, 100%);
}

.wb-shortcuts {
  width: min(560px, 100%);
}

.wb-actions .wb-btn {
  min-width: 108px;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease;
}

.wb-actions .wb-btn:not(:disabled):hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(var(--primary-rgb), 0.2);
}

.wb-actions .wb-btn:not(:disabled):active {
  transform: translateY(0);
}

.wb-actions .wb-btn.primary:not(:disabled):hover {
  box-shadow: 0 6px 18px rgba(var(--primary-rgb), 0.35);
}

@media (prefers-reduced-motion: reduce) {
  .wb-card.wb-flashcard,
  .wb-card.wb-flashcard:hover,
  .wb-card.wb-flashcard:active,
  .wb-actions .wb-btn {
    transition: none;
    transform: none;
  }
  .wb-actions .wb-btn:not(:disabled):hover,
  .wb-actions .wb-btn:not(:disabled):active {
    transform: none;
  }
}

.wb-shortcuts {
  text-align: center;
  margin-top: 16px;
  font-size: 0.74rem;
  color: var(--sub-text);
}

.wb-quiz-overlay {
  position: fixed;
  inset: 0;
  z-index: 11000;
  background: rgba(0, 0, 0, 0.48);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.wb-quiz-overlay.is-open {
  display: flex;
}

.wb-quiz-dialog {
  width: min(480px, 100%);
  max-height: min(90vh, 640px);
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 20px 16px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.18);
}

.wb-quiz-title {
  margin: 0 0 8px;
  font-size: 1.08rem;
}

.wb-quiz-hint {
  margin: 0 0 12px;
  font-size: 0.82rem;
  color: var(--sub-text);
  line-height: 1.5;
}

.wb-quiz-subhint {
  margin: 8px 0 12px;
  font-size: 0.76rem;
  color: var(--sub-text);
}

.wb-quiz-ling .wb-btn.secondary {
  width: 100%;
}

.wb-quiz-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.wb-quiz-opt {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 10px;
  padding: 12px 10px;
  font-size: 0.95rem;
  cursor: pointer;
  color: var(--text);
}

.wb-quiz-opt:hover {
  background: var(--bg);
}

.wb-quiz-opt.selected {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 600;
}

.wb-quiz-opt:disabled {
  opacity: 0.55;
  cursor: default;
}

.wb-quiz-confirm {
  width: 100%;
  margin-bottom: 8px;
}

.wb-quiz-free-stem {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text);
  padding: 12px;
  background: var(--bg);
  border-radius: 10px;
  border: 1px solid var(--border);
  margin: 0 0 12px;
  white-space: pre-wrap;
}

.wb-quiz-free-stem.wb-quiz-free-stem--notion {
  white-space: normal;
  padding: 0;
  background: transparent;
  border: none;
}
.wb-quiz-free-stem.wb-quiz-free-stem--notion .ling-notion {
  width: 100%;
}
.ling-notion--quiz .ling-notion-row {
  padding: 9px 11px;
  font-size: 0.86rem;
}
.ling-notion--quiz .ling-notion-label {
  font-size: 0.66rem;
}

.wb-quiz-free-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.wb-quiz-result {
  margin: 12px 0 0;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 0.86rem;
  line-height: 1.5;
}

.wb-quiz-result.ok {
  background: var(--success-soft);
  color: var(--success);
  border: 1px solid var(--success-soft);
}

.wb-quiz-result.bad {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid var(--danger-soft);
}

.wb-quiz-result.neutral {
  background: var(--warning-soft);
  color: var(--warning);
  border: 1px solid var(--warning-soft);
}

.wb-quiz-dialog-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  justify-content: flex-end;
}

/* 错题本返回按钮 - 产品化设计 */
.wb-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--sub-text);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 500;
  transition: all 0.18s ease;
}

.wb-back::before {
  content: "";
  display: inline-block;
  width: 16px;
  height: 16px;
  background: currentColor;
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M19 12H5M12 19l-7-7 7-7'/%3E%3C/svg%3E");
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M19 12H5M12 19l-7-7 7-7'/%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
}

.wb-back:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
}

.wb-back:active {
  transform: translateY(1px);
}

@media (max-width: 600px) {
  .wb-hero .title {
    font-size: 1.45rem;
  }
  .wb-card .wb-stem {
    font-size: 0.98rem;
  }
}

/* —— 模块巩固测验（错题本，不落库） —— */
.rc-mod-a-learn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin: 12px 0;
}
.rc-mod-a-learn-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  background: var(--bg);
}
.rc-mod-a-learn-label {
  font-size: 0.88rem;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.45;
}

.rc-hidden {
  display: none !important;
}
.rc-modal-btn-hidden {
  display: none !important;
}

.rc-overlay {
  position: fixed;
  inset: 0;
  z-index: 12000;
  background: rgba(250, 250, 248, 0.97);
  overflow: auto;
  padding: 16px;
  display: none;
}
.rc-overlay.is-open {
  display: block;
}
.rc-overlay-inner {
  max-width: 720px;
  margin: 0 auto 48px;
}
body.rc-consolidation-rail-active .rc-overlay-inner {
  padding-top: 118px;
}
.rc-overlay-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 10px;
}
.rc-overlay-title {
  margin: 0;
  font-size: 1.25rem;
  color: var(--text);
}
.rc-esc {
  flex-shrink: 0;
}
.rc-overlay-sub {
  margin: 0 0 10px;
  font-size: 0.86rem;
  color: var(--sub-text);
}

/* 全部类型 · 多模块巩固进度：线 + 圆 */
.rc-module-rail {
  position: fixed;
  left: 50%;
  top: 12px;
  z-index: 12500;
  width: min(720px, calc(100vw - 32px));
  transform: translateX(-50%);
  margin: 0;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(250, 250, 248, 0.98);
  box-shadow: 0 12px 30px rgba(39, 50, 68, 0.12);
}
.rc-module-rail-hint {
  margin: 0 0 12px;
  font-size: 0.82rem;
  color: var(--sub-text);
}
.rc-module-rail-track {
  position: relative;
  padding: 8px 0 4px;
}
.rc-module-rail-line {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 22px;
  height: 3px;
  background: linear-gradient(90deg, var(--border), var(--primary-soft));
  border-radius: 2px;
  z-index: 0;
}
.rc-module-rail-nodes {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px 12px;
}
.rc-module-rail-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  max-width: 120px;
  text-align: center;
}
.rc-module-rail-dot {
  display: block;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 3px solid var(--border);
  background: var(--bg);
  box-sizing: border-box;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.rc-module-rail-node.is-active .rc-module-rail-dot {
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: scale(1.06);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2);
}
.rc-module-rail-node.is-done .rc-module-rail-dot {
  border-color: var(--primary);
  background: var(--primary);
}
.rc-module-rail-lbl {
  font-size: 0.72rem;
  line-height: 1.35;
  color: var(--sub-text);
}
.rc-module-rail-node.is-active .rc-module-rail-lbl,
.rc-module-rail-node.is-done .rc-module-rail-lbl {
  color: var(--text);
  font-weight: 600;
}
.rc-train-intro {
  margin: 12px 0 18px;
  padding: 20px 18px;
  border-radius: 12px;
  border: 1px dashed var(--border);
  background: var(--card-bg, #fafafa);
  text-align: center;
}
.rc-train-intro .rc-module-tip {
  margin-bottom: 16px;
}

.rc-global-notice {
  margin: 0 0 12px;
  padding: 10px 12px;
  border: 1px solid var(--warning);
  border-radius: 10px;
  background: var(--warning-soft);
  color: var(--warning);
  font-size: 0.86rem;
  line-height: 1.5;
}
.rc-module-tip {
  font-size: 0.82rem;
  color: var(--sub-text);
  line-height: 1.55;
  margin: 0 0 14px;
}
.rc-question-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  padding: 14px;
  margin-bottom: 14px;
}
.rc-card-h {
  margin: 0 0 10px;
  font-size: 0.95rem;
}
.rc-audio-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 8px;
}
.rc-tip-inline {
  font-size: 0.8rem;
  color: var(--sub-text);
}
.rc-session-hidden {
  display: none !important;
}
.rc-progress-wrap {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  margin-bottom: 12px;
}
.rc-progress-text {
  font-size: 0.84rem;
  color: var(--sub-text);
  margin-bottom: 6px;
}
.rc-progress-bar {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
}
.rc-progress-fill {
  width: 0;
  height: 100%;
  background: var(--primary);
}
.rc-q-title {
  margin: 8px 0;
  font-size: 0.95rem;
}
.rc-options-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(64px, 1fr));
  gap: 8px;
  margin: 10px 0;
}
.rc-opt-btn {
  border: 1px solid var(--border);
  border-radius: 10px;
  min-height: 42px;
  cursor: pointer;
  background: var(--border);
  color: var(--sub-text);
  font-size: 1rem;
}
.rc-opt-btn.rc-opt-btn-enabled {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: var(--primary-soft);
}
.rc-opt-btn.rc-opt-btn-selected {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.rc-opt-btn:disabled {
  opacity: 0.55;
  cursor: default;
}
.rc-actions-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 10px;
}
.rc-tip {
  font-size: 0.84rem;
  color: var(--sub-text);
  line-height: 1.55;
  margin-top: 8px;
}
.rc-summary-block {
  margin-top: 8px;
}
.rc-sum-title {
  margin: 0 0 10px;
  font-size: 1rem;
}
.rc-sum-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.rc-sum-table th,
.rc-sum-table td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
.rc-sum-table th {
  background: var(--bg);
  font-weight: 600;
}
.rc-sum-row-up td:last-child {
  background: rgba(56, 142, 60, 0.08);
}
.rc-sum-foot {
  font-size: 0.78rem;
  color: var(--sub-text);
  margin-top: 12px;
  line-height: 1.5;
}
.rc-overlay-footer {
  margin-top: 16px;
  text-align: center;
}

.rc-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 13000;
  background: rgba(0, 0, 0, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.rc-modal-overlay.is-open {
  display: flex;
}
.rc-modal-dialog {
  width: min(420px, 100%);
  background: var(--panel);
  border-radius: 16px;
  padding: 22px 20px 18px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
  border: 1px solid var(--border);
  text-align: center;
}
.rc-modal-dialog.rc-ling-modal-warn {
  border-color: var(--danger-soft);
}
.rc-modal-dialog.rc-ling-modal-success {
  border-color: var(--success-soft);
}
.rc-modal-title {
  font-size: 1.05rem;
  margin: 0 0 12px;
  color: var(--text);
}
.rc-modal-body {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text);
  margin: 0 0 18px;
  text-align: left;
  white-space: pre-line;
}
.rc-modal-footer {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.rc-modal-footer-wrong .rc-skip-warn {
  margin: 0 0 14px;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--danger);
  font-weight: 600;
  text-align: left;
}
.rc-modal-footer-inline {
  justify-content: center;
}

.rc-free-inner {
  max-width: 520px;
}
.rc-free-prog {
  font-size: 0.86rem;
  color: var(--sub-text);
  margin: 0 0 10px;
}
.rc-free-stem {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text);
  padding: 12px;
  background: var(--bg);
  border-radius: 10px;
  border: 1px solid var(--border);
  margin-bottom: 14px;
  min-height: 3em;
}
.rc-free-stem .ling-notion--rcfree {
  width: 100%;
}
.ling-notion--rcfree .ling-notion-row {
  padding: 9px 11px;
  font-size: 0.86rem;
}
.ling-notion--rcfree .ling-notion-label {
  font-size: 0.66rem;
}
.rc-free-plain {
  margin: 0;
  white-space: pre-wrap;
}

/* 错题 / 回顾 模式切换 + 回顾台 */
.wb-mode-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px 20px;
  margin-bottom: 16px;
  padding: 12px 16px;
}
.wb-mode-label {
  font-size: 0.82rem;
  color: var(--sub-text);
  font-weight: 600;
}
.wb-mode-toggle {
  flex-shrink: 0;
}
.wb-review-mode-root {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 20px;
  position: relative;
  padding-top: 70px; /* 为左上角返回按钮留空间 */
}
.wb-review-mode-root[hidden] {
  display: none !important;
}

/* 训练回顾模式 - 顶部标题栏 */
.wb-review-mode-header {
  position: absolute;
  top: 18px;
  left: 24px;
  right: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 10;
}

.wb-back-to-wrongbook {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg);
  border: none;
  border-radius: 8px;
  color: var(--primary);
  font-size: 0.86rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.18s ease;
}
.wb-back-to-wrongbook:hover {
  background: var(--primary-soft);
}

.wb-back-to-wrongbook:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.wb-review-mode-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  flex: 1;
  margin: 0 20px;
}
#wbWrongModeRoot[hidden] {
  display: none !important;
}
.wb-review-hub-desc,
.wb-review-snap-note {
  font-size: 0.84rem;
  color: var(--sub-text);
  line-height: 1.55;
  margin: 0 0 14px;
}
.wb-review-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}
.wb-review-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  padding: 12px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  text-decoration: none;
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 600;
  text-align: center;
  line-height: 1.35;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.wb-review-tile:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}
.wb-review-tile-sub {
  display: block;
  margin-top: 4px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--sub-text);
}
.wb-snap-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.wb-snap-sub {
  margin: 0 0 8px;
  font-size: 0.88rem;
  color: var(--text);
}
.wb-snap-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}
.wb-snap-table th,
.wb-snap-table td {
  border: 1px solid var(--border);
  padding: 6px 8px;
  text-align: left;
}
.wb-snap-table th {
  background: var(--bg);
  font-weight: 600;
}
.wb-snap-empty,
.wb-snap-loading {
  font-size: 0.82rem;
  color: var(--sub-text);
  margin: 0;
}
.wb-snap-table-wrap {
  overflow-x: auto;
}
.wb-snap-table td.wb-snap-num {
  text-align: center;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

/* —— 错题训练内嵌操作区（桌面筛选下方 / 移动端独立页） —— */
.wb-train-host {
  margin-top: 18px;
}
.wb-train-host .rc-overlay {
  position: static;
  inset: auto;
  z-index: auto;
  background: transparent;
  overflow: visible;
  padding: 0;
  display: none;
  margin-top: 14px;
  border: none;
  box-shadow: none;
}
.wb-train-host .rc-overlay.is-open {
  display: block;
}
.wb-train-host .rc-module-rail {
  position: static;
  left: auto;
  top: auto;
  transform: none;
  width: 100%;
  z-index: auto;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}
body.rc-consolidation-rail-active .wb-train-host .rc-overlay-inner {
  padding-top: 0;
}
.wb-train-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
}
.wb-train-panel-title {
  margin: 0;
  font-size: 1.15rem;
  color: var(--text);
  line-height: 1.35;
}
.wb-train-panel-sub {
  margin: 0 0 12px;
  font-size: 0.86rem;
  color: var(--sub-text);
  line-height: 1.45;
}
.wb-train-panel-foot {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.wb-train-exit {
  flex-shrink: 0;
  font-size: 0.82rem;
}
.wb-list-hint {
  margin: 8px 0 0;
  font-size: 0.82rem;
  color: var(--sub-text);
  line-height: 1.45;
  width: 100%;
}
.wb-train-status-list {
  display: grid;
  gap: 6px;
  margin: 8px 0 12px;
}
.wb-train-status-list .status-item {
  border-radius: 10px;
  background: var(--bg);
  padding: 6px 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  gap: 10px;
}
body[data-wb-train-page="1"] .wb-train-mobile-head {
  margin-bottom: 4px;
}
body[data-wb-train-page="1"] .wb-train-host {
  margin-top: 12px;
}
body[data-wb-train-page="1"] .wb-train-host .rc-overlay.is-open {
  margin-top: 0;
}
body.wb-train-active .wb-panel + .wb-train-host:not(.rc-hidden) {
  scroll-margin-top: 12px;
}

/* 错题训练 · B 模块语音球与选项可视化 */
.rc-mod-b-play-orb-row {
  display: flex;
  justify-content: center;
  margin: 10px 0 14px;
}
.rc-mod-b-opt-shell {
  border: none;
  background: transparent;
  padding: 4px;
  cursor: pointer;
  border-radius: 14px;
}
.rc-mod-b-opt-shell.selected,
.rc-mod-b-opt-shell.enabled.selected {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.rc-mod-b-opt-orb.is-selected {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 14px;
}
.mb-learn-orb-strip {
  width: 100%;
}
.mb-learn-orb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
}
.mb-learn-orb-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 12px 10px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel);
}
.mb-learn-orb-cell.is-heard {
  border-color: var(--primary);
  background: var(--primary-soft);
}
.mb-learn-orb-slot-label {
  margin: 0;
  font-size: 0.76rem;
  color: var(--sub-text);
  text-align: center;
}
.wb-train-host .mb-size-test-panel:not(.rc-hidden) {
  margin: 8px 0 12px;
}
.wb-module-b-embed .wb-module-b-operation {
  border: none;
  box-shadow: none;
  padding: 0;
  margin-top: 8px;
}
.wb-module-b-embed .question-card.operation-card {
  background: transparent;
}

/* —— 紧凑可收起筛选 —— */
.wb-hero--compact {
  margin-bottom: 10px;
  padding: 14px 16px;
}
.wb-hero--compact .title {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  margin-bottom: 4px;
}
.wb-hero--compact .wb-hero-desc {
  font-size: 0.82rem;
}
.wb-filter-compact {
  padding: 0;
  margin-bottom: 10px;
  overflow: hidden;
}
.wb-filter-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 14px;
  border: none;
  background: transparent;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  font: inherit;
}
.wb-filter-toggle-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary);
  flex-shrink: 0;
}
.wb-filter-summary {
  flex: 1;
  font-size: 0.8rem;
  color: var(--sub-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.wb-filter-chevron {
  flex-shrink: 0;
  font-size: 0.7rem;
  color: var(--sub-text);
  transition: transform 0.2s ease;
}
.wb-filter-toggle[aria-expanded="true"] .wb-filter-chevron {
  transform: rotate(180deg);
}
.wb-filter-body {
  padding: 0 14px 12px;
  border-top: 1px solid var(--border-light);
}
.wb-filter-body--collapsed {
  display: none;
}
.wb-panel-grid--compact {
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px 12px;
  padding-top: 10px;
}
.wb-btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}
.wb-list-hint--inline {
  margin: 0;
  padding: 0 14px 10px;
  font-size: 0.78rem;
}
.wb-train-host:not(.rc-hidden) {
  margin-top: 0;
}
body.wb-train-active .wb-filter-compact {
  margin-bottom: 6px;
}

/* —— 训练模块选择 hub —— */
.wb-train-hub {
  margin-bottom: 12px;
  width: 100%;
  box-sizing: border-box;
}
.wb-train-hub.rc-hidden {
  display: none !important;
}
.wb-train-hub-title {
  margin: 0 0 8px;
  font-size: 1.1rem;
  color: var(--text);
}
.wb-train-hub-stats {
  margin: 0 0 12px;
  font-size: 0.84rem;
  color: var(--sub-text);
  line-height: 1.5;
}
.wb-train-module-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
  box-sizing: border-box;
  align-items: stretch;
}
.wb-train-module-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
  overflow: hidden;
  padding: 12px 14px;
  border: 1px solid rgba(var(--primary-rgb), 0.22);
  border-radius: 12px;
  background: var(--panel);
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: var(--text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  position: relative;
}
.wb-train-module-card-head {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-width: 0;
}
.wb-train-module-card-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  object-fit: contain;
  opacity: 0.9;
  pointer-events: none;
  user-select: none;
}
.wb-train-module-card-title,
.wb-train-module-card-count,
.wb-train-module-card-note {
  display: block;
  width: 100%;
  min-width: 0;
}
.wb-train-module-card:hover:not(:disabled) {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.wb-train-module-card:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.wb-train-module-card-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
}
.wb-train-module-card-count {
  font-size: 0.78rem;
  color: var(--sub-text);
}
.wb-train-module-card-note {
  font-size: 0.72rem;
  color: var(--primary);
}
.wb-train-hub-foot {
  margin: 12px 0 0;
  font-size: 0.76rem;
  color: var(--sub-text);
}

/* —— 察觉声音规则说明 —— */
.wb-train-rules-host {
  margin-bottom: 12px;
}
.wb-train-rules {
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(var(--primary-rgb), 0.06);
  border: 1px solid rgba(var(--primary-rgb), 0.15);
}
.wb-train-rules-title {
  margin: 0 0 8px;
  font-size: 0.9rem;
  color: var(--text);
}
.wb-train-rules-list {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.8rem;
  color: var(--sub-text);
  line-height: 1.55;
}
.wb-train-rules-list li + li {
  margin-top: 6px;
}
.wb-train-rules-foot {
  margin: 8px 0 0;
  font-size: 0.76rem;
  color: var(--sub-text);
}

/* —— 筛选区日期热力图 —— */
.wb-date-heatmap {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--border-light);
}
.wb-date-heatmap-label {
  margin: 0 0 8px;
  font-size: 0.76rem;
  color: var(--sub-text);
}
.wb-date-heatmap-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.wb-date-hm-month {
  flex: 1;
  text-align: center;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text);
}
.wb-date-hm-nav {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--sub-text);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
}
.wb-date-hm-nav:hover {
  background: var(--primary-soft);
  color: var(--primary);
}
.wb-date-heatmap-week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 4px;
  font-size: 0.68rem;
  text-align: center;
  color: var(--sub-text);
}
.wb-date-heatmap-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}
.wb-date-heatmap-grid .day-cell {
  min-height: 28px;
  aspect-ratio: 1;
  font-size: 0.7rem;
  padding: 0;
  border: 1px solid transparent;
}
.wb-date-heatmap-grid .wb-date-hm-cell--empty {
  opacity: 0.55;
}
.wb-date-heatmap-grid .wb-date-hm-cell--empty:hover {
  opacity: 0.85;
  border-color: var(--border);
}
.wb-date-heatmap-legend {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  margin-top: 8px;
  font-size: 0.72rem;
  color: var(--sub-text);
}
.wb-date-heatmap-legend .day-cell {
  width: 12px;
  height: 12px;
  aspect-ratio: auto;
  border-radius: 2px;
}
.wb-date-heatmap-tip {
  margin: 6px 0 0;
  font-size: 0.72rem;
  color: var(--sub-text);
  line-height: 1.4;
}

/* —— Web 端单屏紧凑布局 —— */
@media (min-width: 901px) {
  body[data-mobile-nav="wrongbook"] .home-main {
    padding: 10px 14px 12px;
  }

  body[data-mobile-nav="wrongbook"] .wb-review-page {
    padding-bottom: 0;
    max-width: 1080px;
  }

  body[data-mobile-nav="wrongbook"] .wb-main-chrome .wb-hero--compact {
    display: none;
  }

  body[data-mobile-nav="wrongbook"] .wb-filter-compact {
    margin-bottom: 8px;
  }

  /* Web 端：筛选按钮始终可见，可随时展开/收起 */
  body[data-mobile-nav="wrongbook"] .wb-filter-toggle {
    display: flex;
  }

  body[data-mobile-nav="wrongbook"].wb-train-active .wb-filter-toggle {
    padding: 6px 12px;
  }

  body[data-mobile-nav="wrongbook"]:not(.wb-train-active) .wb-filter-toggle {
    padding: 8px 12px;
  }

  /* 筛选展开：左右分栏 */
  body[data-mobile-nav="wrongbook"] .wb-filter-body:not(.wb-filter-body--collapsed) {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) 248px;
    gap: 6px 14px;
    align-items: start;
    padding: 10px 12px;
  }

  body[data-mobile-nav="wrongbook"] .wb-filter-body.wb-filter-body--collapsed {
    display: none !important;
  }

  body[data-mobile-nav="wrongbook"] .wb-filter-body:not(.wb-filter-body--collapsed) .wb-panel-grid--compact {
    grid-column: 1;
    grid-row: 1;
    padding-top: 0;
    gap: 8px 10px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  body[data-mobile-nav="wrongbook"] .wb-filter-body:not(.wb-filter-body--collapsed) .wb-date-heatmap {
    grid-column: 2;
    grid-row: 1 / span 2;
    margin-top: 0;
    padding-top: 0;
    border-top: none;
    border-left: 1px dashed var(--border-light);
    padding-left: 12px;
  }

  body[data-mobile-nav="wrongbook"] .wb-filter-body:not(.wb-filter-body--collapsed) .wb-date-heatmap-label {
    margin-bottom: 4px;
  }

  body[data-mobile-nav="wrongbook"] .wb-filter-body:not(.wb-filter-body--collapsed) .wb-date-heatmap-tip {
    display: none;
  }

  body[data-mobile-nav="wrongbook"] .wb-field label {
    margin-bottom: 4px;
    font-size: 0.72rem;
  }

  body[data-mobile-nav="wrongbook"] .wb-field select {
    padding: 6px 8px;
    font-size: 0.8rem;
  }

  body[data-mobile-nav="wrongbook"] .wb-field-ear .ear-btn {
    padding: 5px 8px;
    font-size: 0.76rem;
  }

  body[data-mobile-nav="wrongbook"]:not(.wb-train-active) .wb-date-heatmap-tip {
    display: none;
  }

  body[data-mobile-nav="wrongbook"] .wb-date-heatmap-week {
    gap: 2px;
    margin-bottom: 2px;
    font-size: 0.62rem;
  }

  body[data-mobile-nav="wrongbook"] .wb-date-heatmap-grid {
    gap: 2px;
  }

  body[data-mobile-nav="wrongbook"] .wb-date-heatmap-grid .day-cell {
    min-height: 0;
    aspect-ratio: 1;
    font-size: 0.62rem;
    border-radius: 4px;
  }

  body[data-mobile-nav="wrongbook"] .wb-date-heatmap-head {
    gap: 4px;
    margin-bottom: 4px;
  }

  body[data-mobile-nav="wrongbook"] .wb-date-hm-month {
    font-size: 0.78rem;
  }

  body[data-mobile-nav="wrongbook"] .wb-date-hm-nav {
    width: 24px;
    height: 24px;
    font-size: 1rem;
  }

  body[data-mobile-nav="wrongbook"] .wb-date-heatmap-legend {
    margin-top: 4px;
    font-size: 0.66rem;
  }

  body[data-mobile-nav="wrongbook"] .wb-date-heatmap-legend .day-cell {
    width: 10px;
    height: 10px;
  }

  body[data-mobile-nav="wrongbook"] .wb-list-hint--inline {
    padding: 0 12px 8px;
    font-size: 0.74rem;
    line-height: 1.35;
  }

  body[data-mobile-nav="wrongbook"].wb-train-active .wb-filter-toggle[aria-expanded="true"] ~ .wb-list-hint--inline {
    display: block;
  }

  body[data-mobile-nav="wrongbook"] .wb-train-hub {
    margin-bottom: 8px;
    padding: 10px 12px !important;
  }

  body[data-mobile-nav="wrongbook"] .wb-train-hub-title {
    margin: 0 0 4px;
    font-size: 0.95rem;
  }

  body[data-mobile-nav="wrongbook"] .wb-train-hub-stats {
    margin: 0 0 8px;
    font-size: 0.76rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  body[data-mobile-nav="wrongbook"] .wb-train-module-cards {
    gap: 8px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body[data-mobile-nav="wrongbook"] .wb-train-module-card {
    padding: 8px 10px;
    border-radius: 10px;
    gap: 2px;
  }

  body[data-mobile-nav="wrongbook"] .wb-train-module-card-icon {
    width: 28px;
    height: 28px;
  }

  body[data-mobile-nav="wrongbook"] .wb-train-module-card-head {
    gap: 6px;
  }

  body[data-mobile-nav="wrongbook"] .wb-train-module-card-title {
    font-size: 0.84rem;
  }

  body[data-mobile-nav="wrongbook"] .wb-train-module-card-count {
    font-size: 0.72rem;
  }

  body[data-mobile-nav="wrongbook"] .wb-train-module-card-note {
    font-size: 0.66rem;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  body[data-mobile-nav="wrongbook"] .wb-train-hub-foot {
    display: none;
  }

  body[data-mobile-nav="wrongbook"].wb-train-active .wb-list-hint--inline {
    display: none;
  }
}

@media (max-width: 900px) {
  body[data-mobile-nav="wrongbook"]:not([data-wb-train-page="1"]) .wb-date-heatmap {
    display: none;
  }
  .wb-mobile-landing {
    display: block;
  }
  .wb-main-chrome .wb-hero--compact {
    display: none;
  }
  .wb-filter-body--collapsed {
    display: none;
  }
  .wb-filter-toggle[aria-expanded="false"] + .wb-filter-body {
    display: none;
  }
}

@media (min-width: 640px) {
  .wb-train-module-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}