:root {
  --bg: #ffffff;
  --text: #1a1a2e;
  --title: #0f172a;
  --accent: #c8102e;
  --subtitle: #64748b;
  --label: #334155;
  --input-bg: #f8fafc;
  --input-border: #e2e8f0;
  --input-text: #0f172a;
  --badge-color: #2563eb;
  --badge-bg: #eff6ff;
  --footer: #cbd5e1;
  --chat-panel: #f8fafc;
  --chat-border: #e2e8f0;
  --page-max: 1100px;
  --page-padding: 1.25rem;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 16px;
  --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.05), 0 4px 14px rgba(15, 23, 42, 0.06);
  --shadow-card-hover: 0 4px 20px rgba(15, 23, 42, 0.1);
  --focus-ring: 0 0 0 3px rgba(200, 16, 46, 0.12);
}

html.dark {
  --bg: #0f172a;
  --text: #e2e8f0;
  --title: #f8fafc;
  --accent: #ff4d6d;
  --subtitle: #94a3b8;
  --label: #cbd5e1;
  --input-bg: #1e293b;
  --input-border: #334155;
  --input-text: #f1f5f9;
  --badge-color: #93c5fd;
  --badge-bg: #1e3a5f;
  --footer: #475569;
  --chat-panel: #1e293b;
  --chat-border: #334155;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.2), 0 4px 14px rgba(0, 0, 0, 0.15);
  --shadow-card-hover: 0 4px 20px rgba(0, 0, 0, 0.25);
  --focus-ring: 0 0 0 3px rgba(255, 77, 109, 0.2);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  background: var(--bg);
  font-family: "DM Sans", system-ui, -apple-system, sans-serif;
  color: var(--text);
  padding: var(--page-padding) var(--page-padding) 2.5rem;
  -webkit-font-smoothing: antialiased;
  transition: background 0.25s, color 0.25s;
}

.app-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--input-border);
  box-shadow: var(--shadow-card);
}

@media (min-width: 768px) {
  body {
    padding-top: 4.5rem;
  }

  .app-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
  }
}

.app-nav__inner {
  max-width: var(--page-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.6rem var(--page-padding);
  flex-wrap: nowrap;
  min-width: 0;
}

.app-nav__brand {
  flex: 0 0 auto;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--title);
  text-decoration: none;
  white-space: nowrap;
  padding: 0.35rem 0.5rem;
  border-radius: 8px;
}

.app-nav__brand span { color: var(--accent); }

.app-nav__links-wrap {
  flex: 1 1 auto;
  min-width: 0;
  overflow: visible;
}

.app-nav__links {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  gap: 0.375rem;
  min-width: 0;
  flex-wrap: nowrap;
  padding: 0.1rem 0.25rem 0.1rem 0;
}

.app-nav__more-wrap {
  position: relative;
  flex-shrink: 0;
}

.app-nav__more-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--subtitle);
  background: transparent;
  border: none;
  padding: 0.4rem 0.55rem;
  border-radius: 8px;
  white-space: nowrap;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, color 0.15s;
}

.app-nav__more-trigger:hover,
.app-nav__more-wrap.is-open .app-nav__more-trigger {
  background: var(--input-bg);
  color: var(--title);
}

.app-nav__more-trigger.is-active {
  color: #fff;
  background: var(--accent);
}

html.dark .app-nav__more-trigger.is-active {
  background: #c8102e;
}

.app-nav__more-caret {
  font-size: 0.625rem;
  line-height: 1;
  transition: transform 0.15s ease;
}

.app-nav__more-wrap.is-open .app-nav__more-caret {
  transform: rotate(180deg);
}

.app-nav__more-menu {
  position: absolute;
  top: calc(100% + 0.35rem);
  right: 0;
  width: max-content;
  max-width: min(100vw - 2rem, 20rem);
  padding: 0.35rem;
  background: var(--bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  box-shadow: var(--shadow-card);
  z-index: 120;
}

.app-nav__more-menu[hidden] {
  display: none;
}

.app-nav__more-group-label {
  margin: 0.15rem 0 0.25rem;
  padding: 0.35rem 0.55rem 0.15rem;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--subtitle);
}

.app-nav__more-group-label:first-child {
  margin-top: 0;
}

.app-nav__more-divider {
  height: 1px;
  margin: 0.35rem 0.45rem;
  background: var(--input-border);
}

.app-nav__more-link {
  display: block;
  width: 100%;
  box-sizing: border-box;
  text-align: left;
}

.app-nav__more-link.is-active {
  color: #fff;
  background: var(--accent);
}

html.dark .app-nav__more-link.is-active {
  background: #c8102e;
}

.app-nav__link {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--subtitle);
  text-decoration: none;
  padding: 0.4rem 0.55rem;
  border-radius: 8px;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.app-nav__link:hover { background: var(--input-bg); color: var(--title); }

.app-nav__link.is-active {
  color: #fff;
  background: var(--accent);
}

html.dark .app-nav__link.is-active { background: #c8102e; }

.app-nav__theme {
  flex-shrink: 0;
  border: none;
  background: var(--input-bg);
  border-radius: 8px;
  padding: 0.35rem 0.5rem;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}

.page {
  width: 100%;
  max-width: var(--page-max);
  margin: 0 auto;
}

.page--narrow {
  max-width: 720px;
}

.page-header {
  margin-bottom: 1.5rem;
}

.page-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 0.35rem;
}

.page-header p {
  font-size: 0.9375rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.section-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 0.35rem;
}

.section-desc {
  font-size: 0.875rem;
  color: var(--subtitle);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.hero { text-align: center; margin-bottom: 2rem; }

.hero--compact {
  margin-bottom: 1rem;
}

.hero--compact .badge {
  margin-bottom: 0.35rem;
}

.hero--compact h1 {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  margin-bottom: 0;
}

body[data-page="home"] .hero--compact {
  margin-bottom: 0.5rem;
}

body[data-page="home"] .home-dashboard-sections {
  margin-top: 0;
}

.home-dashboard-sections {
  display: flex;
  flex-direction: column;
  gap: clamp(1.5rem, 4vw, 2rem);
  margin: 0 auto;
  max-width: 56rem;
}

.home-module-section {
  margin: 0;
}

.home-module-section__title {
  margin: 0 0 0.85rem;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--title);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.home-module-section__title::before {
  content: none;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--badge-color);
  background: var(--badge-bg);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--title);
  margin-bottom: 0.75rem;
}

.hero h1 .flag { font-size: 0.5em; vertical-align: middle; margin-right: 0.2em; }
.hero h1 span { color: var(--accent); }

.subtitle {
  font-size: 1.0625rem;
  color: var(--subtitle);
  max-width: 420px;
  margin: 0 auto;
  line-height: 1.6;
}

.feature-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.875rem;
  margin: 0 auto 2rem;
}

@media (min-width: 768px) {
  .feature-nav {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  padding: 1.125rem;
  background: var(--chat-panel);
  border: 1.5px solid var(--chat-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.feature-card__icon { font-size: 1.5rem; }
.feature-card__title { font-size: 0.9375rem; font-weight: 700; color: var(--title); }
.feature-card__desc { font-size: 0.75rem; color: var(--subtitle); line-height: 1.4; }

.feature-card__text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.home-feature-nav {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin: 0 auto 1rem;
  max-width: 56rem;
  width: 100%;
}

@media (min-width: 640px) {
  .home-feature-nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.875rem;
  }
}

.home-feature-nav .feature-card {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
}

.feature-card--primary {
  gap: 0.65rem;
  padding: 1.25rem 1.125rem;
  min-height: 7rem;
  background: linear-gradient(165deg, var(--badge-bg) 0%, var(--chat-panel) 60%);
}

.feature-card--primary .feature-card__icon {
  font-size: 2rem;
  line-height: 1;
}

.feature-card--primary .feature-card__title {
  font-size: 1.0625rem;
}

.feature-card--primary .feature-card__desc {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.45;
}

.feature-card--entry {
  flex-direction: column;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 1.35rem 1.25rem;
  min-height: 6.5rem;
  background: linear-gradient(165deg, var(--badge-bg) 0%, var(--chat-panel) 55%);
  border-width: 2px;
}

.feature-card--entry .feature-card__icon {
  font-size: 1.875rem;
  line-height: 1;
}

.feature-card--entry .feature-card__title {
  font-size: 1.125rem;
}

.feature-card--entry .feature-card__desc {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.45;
}

.home-section {
  margin: 0 auto 2rem;
}

/* ── 首页 Dashboard ── */

.home-overview {
  margin: 0 auto 1.25rem;
  max-width: 56rem;
}

.home-overview__title {
  margin: 0 0 0.75rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--title);
  line-height: 1.35;
}

.home-overview__layout {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.home-overview-streak {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
  padding: 1.35rem 1.25rem;
  border-radius: 18px;
  background: linear-gradient(145deg, #fff5f5 0%, #fff 55%);
  border: 2px solid rgba(200, 16, 46, 0.22);
  box-shadow: 0 4px 16px rgba(200, 16, 46, 0.1);
  min-height: 8.5rem;
}

html.dark .home-overview-streak {
  background: linear-gradient(145deg, rgba(200, 16, 46, 0.14) 0%, var(--chat-panel) 55%);
  border-color: rgba(200, 16, 46, 0.35);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.28);
}

.home-overview-streak__icon {
  font-size: 1.75rem;
  line-height: 1;
}

.home-overview-streak__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--subtitle);
}

.home-overview-streak__value {
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1.05;
  font-variant-numeric: tabular-nums;
}

html.dark .home-overview-streak__value {
  color: #f87171;
}

.home-overview__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

@media (min-width: 768px) {
  .home-overview__layout {
    flex-direction: row;
    align-items: stretch;
    gap: 0.85rem;
  }

  .home-overview-streak {
    flex: 0 0 30%;
    max-width: 30%;
  }

  .home-overview__stats {
    flex: 1;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.65rem;
  }
}

.home-overview__cards {
  display: none;
}

.home-module-section__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

@media (min-width: 640px) {
  .home-module-section__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .home-module-section__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.home-module-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1rem 1rem 1.1rem;
  border-radius: 14px;
  border: 1px solid var(--chat-border);
  background: var(--card);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
  min-height: 100%;
}

.home-module-card__head {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.home-module-card__icon {
  font-size: 1.35rem;
  line-height: 1;
}

.home-module-card__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}

.home-module-card__desc {
  margin: 0;
  flex: 1;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--subtitle);
}

.home-module-card__btn {
  align-self: flex-start;
  margin-top: 0.25rem;
  text-decoration: none;
  display: inline-flex;
}

.home-module-section__grid--compact {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .home-module-section__grid--compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .home-module-section__grid--compact {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.home-module-card--live {
  border-color: #86efac;
  background: linear-gradient(180deg, #f0fdf4 0%, var(--card) 100%);
}

.home-module-card--dev {
  border-color: #fde047;
  background: linear-gradient(180deg, #fefce8 0%, var(--card) 100%);
}

.home-module-card--soon {
  border-color: var(--chat-border);
  background: var(--badge-bg);
}

html.dark .home-module-card--live {
  border-color: rgba(74, 222, 128, 0.45);
  background: linear-gradient(180deg, rgba(22, 101, 52, 0.2) 0%, var(--card) 100%);
}

html.dark .home-module-card--dev {
  border-color: rgba(250, 204, 21, 0.45);
  background: linear-gradient(180deg, rgba(113, 63, 18, 0.2) 0%, var(--card) 100%);
}

.home-module-card--progress {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  border-color: #93c5fd;
  background: linear-gradient(180deg, #eff6ff 0%, #fff 100%);
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}

.home-module-card--progress:hover {
  border-color: #60a5fa;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.14);
  background: linear-gradient(180deg, #dbeafe 0%, #fff 100%);
}

html.dark .home-module-card--progress {
  border-color: rgba(96, 165, 250, 0.45);
  background: linear-gradient(180deg, rgba(30, 58, 138, 0.22) 0%, var(--card) 100%);
}

html.dark .home-module-card--progress:hover {
  border-color: rgba(96, 165, 250, 0.65);
  background: linear-gradient(180deg, rgba(30, 58, 138, 0.32) 0%, var(--card) 100%);
}

.home-module-card__progress {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.home-module-card__progress-label {
  margin: 0.15rem 0 0;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--subtitle);
  text-transform: none;
  letter-spacing: 0;
}

.home-module-card__progress-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.home-module-card__progress-list li {
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--title);
  word-break: break-word;
}

.home-module-card__progress-cta {
  align-self: flex-start;
  margin-top: 0.35rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
}

.home-module-card--more {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 100%;
  text-decoration: none;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9375rem;
  transition: background 0.15s, border-color 0.15s;
}

.home-module-card--more:hover {
  border-color: var(--accent);
  background: #fff5f5;
}

html.dark .home-module-card--more:hover {
  background: rgba(200, 16, 46, 0.12);
}

.home-module-card__more-arrow {
  font-size: 1.125rem;
  line-height: 1;
}

.home-module-card__badge--live {
  color: #166534;
  background: #dcfce7;
  border: 1px solid #86efac;
}

.home-module-card__badge--dev {
  color: #854d0e;
  background: #fef9c3;
  border: 1px solid #fde047;
}

.home-module-card__badge--soon {
  color: var(--subtitle);
  background: var(--card);
  border: 1px dashed var(--chat-border);
}

.home-module-card__btn.is-muted {
  opacity: 0.72;
  cursor: pointer;
}

.home-module-card__badge {
  align-self: flex-start;
  display: inline-flex;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--subtitle);
  background: var(--card);
  border: 1px dashed var(--chat-border);
}

.app-nav__more-link--soon {
  opacity: 0.65;
  cursor: pointer;
  border: none;
  background: transparent;
  font-family: inherit;
  text-align: left;
  width: 100%;
}

.home-overview-stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  padding: 16px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--chat-border);
  min-height: 100%;
}

html.dark .home-overview-stat {
  background: var(--chat-panel);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.24);
}

.home-overview-stat__icon {
  font-size: 1.25rem;
  line-height: 1;
}

.home-overview-stat__label {
  font-size: 0.75rem;
  color: var(--subtitle);
  line-height: 1.35;
}

.home-overview-stat__value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--title);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

/* ── 学习模块总览页 ── */

.learning-modules-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .learning-modules-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .learning-modules-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.learning-module-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1rem 1rem 1.1rem;
  border-radius: 14px;
  border: 1px solid var(--chat-border);
  background: var(--card);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
  min-height: 100%;
  text-align: left;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
  text-decoration: none;
  color: inherit;
}

.learning-module-card:hover {
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
}

.learning-module-card--live {
  border-color: #86efac;
  background: linear-gradient(180deg, #f0fdf4 0%, var(--card) 100%);
}

.learning-module-card--dev {
  border-color: #fde047;
  background: linear-gradient(180deg, #fefce8 0%, var(--card) 100%);
}

.learning-module-card--soon {
  border-color: var(--chat-border);
  background: var(--badge-bg);
}

.learning-module-card__head {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.learning-module-card__icon {
  font-size: 1.35rem;
  line-height: 1;
}

.learning-module-card__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}

.learning-module-card__desc {
  margin: 0;
  flex: 1;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--subtitle);
}

.learning-module-card__badge {
  align-self: flex-start;
  display: inline-flex;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.learning-module-card__badge--live {
  color: #166534;
  background: #dcfce7;
  border: 1px solid #86efac;
}

.learning-module-card__badge--dev {
  color: #854d0e;
  background: #fef9c3;
  border: 1px solid #fde047;
}

.learning-module-card__badge--soon {
  color: var(--subtitle);
  background: var(--card);
  border: 1px dashed var(--chat-border);
}

.learning-module-card__btn {
  align-self: flex-start;
  margin-top: 0.25rem;
  pointer-events: none;
}

.home-dashboard {
  margin: 0 auto 1.25rem;
  max-width: 56rem;
}

/* ── 首页成长面板 ── */

.home-growth {
  margin-bottom: 0.85rem;
}

.home-growth__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

@media (min-width: 640px) {
  .home-growth__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }
}

.home-growth-card {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

html.dark .home-growth-card {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.24);
}

.home-growth-card--today {
  grid-column: 1 / -1;
}

.home-growth-card__title {
  margin: 0 0 0.85rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
  line-height: 1.35;
}

.home-growth-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.home-growth-card__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.home-growth-card__label {
  font-size: 0.875rem;
  color: var(--subtitle);
}

.home-growth-card__value {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--title);
  font-variant-numeric: tabular-nums;
}

.home-growth-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 0.45rem;
}

.home-growth-card__btn {
  flex: 1 1 8.5rem;
  text-align: center;
  text-decoration: none;
}

.home-growth-card__btn--secondary {
  background: var(--badge-bg);
  color: var(--title);
  border: 1px solid var(--chat-border);
}

.home-growth-card__link {
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.home-growth-card__link:hover {
  text-decoration: underline;
}

.home-growth-card__hint {
  margin: 0.35rem 0 0;
  padding: 0.55rem 0.7rem;
  border-radius: 0.65rem;
  font-size: 0.8125rem;
  line-height: 1.45;
}

.home-growth-card__hint--warn {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

html.dark .home-growth-card__hint--warn {
  background: #451a03;
  color: #fde68a;
  border-color: #78350f;
}

.home-growth-card__hint--ok {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}

html.dark .home-growth-card__hint--ok {
  background: #14532d;
  color: #bbf7d0;
  border-color: #166534;
}

.home-growth-progress {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.65rem;
  margin-top: 0.35rem;
}

.home-growth-progress__count,
.home-growth-progress__total {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--title);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.home-growth-progress__track {
  height: 0.55rem;
  border-radius: 999px;
  background: var(--input-bg);
  border: 1px solid var(--chat-border);
  overflow: hidden;
}

.home-growth-progress__fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.25s ease;
}

.home-growth-progress__fill--red {
  background: linear-gradient(90deg, #ef4444, #f87171);
}

.home-growth-progress__fill--orange {
  background: linear-gradient(90deg, #f97316, #fb923c);
}

.home-growth-progress__fill--green {
  background: linear-gradient(90deg, #22c55e, #4ade80);
}

.home-dashboard__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

@media (min-width: 768px) {
  .home-dashboard__grid {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
}

.home-dashboard__panel {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.home-dashboard__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1rem 0.65rem;
  border-bottom: 1px solid var(--chat-border);
  background: linear-gradient(180deg, var(--badge-bg) 0%, transparent 100%);
}

.home-dashboard__title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--title);
  line-height: 1.3;
}

.home-dashboard__meta {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
  font-variant-numeric: tabular-nums;
}

.home-dashboard__meta span {
  font-weight: 700;
  color: var(--title);
}

.home-dashboard__body {
  min-height: 0;
}

.home-dashboard__body.home-study-stats__card {
  border: none;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}

.home-dashboard__plan {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  padding: 1rem;
}

@media (min-width: 640px) {
  .home-dashboard__plan {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 1rem;
  }
}

.home-dashboard__plan-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}

.home-dashboard__plan-metric {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.65rem 0.75rem;
  border-radius: 0.75rem;
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
}

.home-dashboard__plan-label {
  font-size: 0.75rem;
  color: var(--subtitle);
}

.home-dashboard__plan-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--title);
  font-variant-numeric: tabular-nums;
}

.home-dashboard__plan-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 700;
  white-space: nowrap;
}

@media (min-width: 640px) {
  .home-dashboard__plan-btn {
    width: auto;
    min-width: 8.5rem;
  }
}

.home-wordbooks {
  margin: 0 auto 1.5rem;
  max-width: 28rem;
}

.home-wordbooks__header {
  margin-bottom: 0.65rem;
}

.home-wordbooks__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--title);
  margin: 0 0 0.25rem;
  line-height: 1.35;
}

.home-wordbooks__total {
  margin: 0;
  font-size: 0.875rem;
  color: var(--subtitle);
}

.home-wordbooks__total span {
  font-weight: 600;
  color: var(--title);
}

.wordbook-compact-list {
  display: flex;
  flex-direction: column;
}

.home-dashboard__body.wordbook-compact-list {
  border: none;
  border-radius: 0;
  background: transparent;
}

.wordbook-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--chat-border);
  transition: background 0.12s, transform 0.12s;
}

.wordbook-row:last-child {
  border-bottom: none;
}

.wordbook-row:hover,
.wordbook-row:focus-visible {
  background: var(--badge-bg);
  outline: none;
}

.wordbook-row__label {
  flex-shrink: 0;
  min-width: 2rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--accent);
}

.wordbook-row__meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.35rem 0.65rem;
  min-width: 0;
}

.wordbook-row__title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--title);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.wordbook-row__count {
  flex-shrink: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--subtitle);
  font-variant-numeric: tabular-nums;
}

.wordbook-row__mastered {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--title);
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  font-variant-numeric: tabular-nums;
}

.home-b2-feature {
  margin: 0 0 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--chat-border);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(16, 185, 129, 0.06));
}

.home-b2-feature__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.home-b2-feature__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.home-b2-feature__desc {
  margin: 0.25rem 0 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.home-b2-feature__link {
  flex-shrink: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.home-b2-feature__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.home-b2-feature__stat {
  padding: 0.65rem 0.5rem;
  border-radius: 10px;
  background: var(--surface);
  text-align: center;
}

.home-b2-feature__stat-value {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--accent);
}

.home-b2-feature__stat-label {
  margin: 0.2rem 0 0;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.theme-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.theme-chip {
  border: 1px solid var(--chat-border);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  background: var(--surface);
  color: inherit;
  font-size: 0.8125rem;
  cursor: pointer;
}

.theme-chip.is-active {
  border-color: var(--accent);
  background: var(--badge-bg);
  color: var(--accent);
  font-weight: 600;
}

@media (max-width: 640px) {
  .home-b2-feature__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.home-study-stats {
  margin-top: 0;
}

.home-study-stats__title {
  margin: 0 0 0.55rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--title);
}

.home-study-stats__card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-lg);
  background: var(--chat-panel);
  overflow: hidden;
}

.home-study-stats__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--chat-border);
}

.home-study-stats__row:last-child {
  border-bottom: none;
}

.home-study-stats__row--total {
  background: var(--badge-bg);
  font-weight: 600;
}

.home-study-stats__label {
  font-size: 0.875rem;
  color: var(--title);
  min-width: 0;
}

.home-study-stats__row--total .home-study-stats__label {
  font-weight: 700;
}

.home-study-stats__value {
  flex-shrink: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--subtitle);
  font-variant-numeric: tabular-nums;
}

.home-study-stats__row--total .home-study-stats__value {
  color: var(--accent);
  font-weight: 700;
}

.home-review-stats {
  margin-top: 0.85rem;
}

.home-study-plan {
  margin-top: 1.25rem;
}

.home-study-plan__title {
  margin: 0 0 0.55rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--title);
}

.home-study-plan__card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-lg);
  background: var(--chat-panel);
  overflow: hidden;
}

.home-study-plan__card .home-study-stats__row:last-of-type {
  border-bottom: 1px solid var(--chat-border);
}

.home-study-plan__btn {
  display: block;
  width: 100%;
  margin: 0;
  border: none;
  border-radius: 0;
  text-align: center;
  text-decoration: none;
  padding: 0.85rem 1rem;
  font-size: 0.9375rem;
}

.wordbook-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.wordbook-card {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1rem 1.125rem;
  background: var(--chat-panel);
  border: 1.5px solid var(--chat-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}

html.dark .wordbook-card {
  background: var(--chat-panel);
  border-color: var(--chat-border);
}

.wordbook-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: var(--shadow-card-hover);
}
.wordbook-card__icon { font-size: 1.75rem; flex-shrink: 0; }
.wordbook-card__body { flex: 1; min-width: 0; text-align: left; }
.wordbook-card__title { display: block; font-size: 1rem; font-weight: 700; color: var(--title); margin-bottom: 0.15rem; }
.wordbook-card__count {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--title);
  margin-bottom: 0.25rem;
}
.wordbook-card__stats {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin-bottom: 0.35rem;
}
.wordbook-card__stat {
  font-size: 0.8125rem;
  color: var(--subtitle);
  line-height: 1.4;
}
.wordbook-card__stat--accent {
  font-weight: 600;
  color: var(--accent);
}
.wordbook-card__desc { display: block; font-size: 0.8125rem; color: var(--subtitle); margin-bottom: 0.35rem; }
.wordbook-card__meta { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.wordbook-card__total, .wordbook-card__level {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--subtitle);
}
.wordbook-card__enter { display: block; font-size: 0.75rem; font-weight: 600; color: var(--accent); margin-top: 0.35rem; }
.wordbook-card__arrow { font-size: 1.125rem; font-weight: 700; color: var(--accent); flex-shrink: 0; }

.book-filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.book-filter-tab {
  padding: 0.45rem 0.75rem;
  border: 1.5px solid var(--input-border);
  border-radius: 999px;
  background: var(--input-bg);
  color: var(--subtitle);
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}

.book-filter-tab.is-active {
  background: #fff1f2;
  border-color: var(--accent);
  color: var(--accent);
}

html.dark .book-filter-tab.is-active {
  background: #3f1d24;
  color: #fda4af;
}

.pill--book {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

html.dark .pill--book {
  background: #1e293b;
  color: #93c5fd;
  border-color: #334155;
}

.word-card__study-link {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.footer {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--footer);
  margin-top: 2rem;
}

.vocab-card {
  border: 1.5px solid var(--chat-border);
  border-radius: var(--radius-lg);
  background: var(--chat-panel);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
}

.vocab-form { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 0; }
.vocab-form label, .vocab-card > label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--label);
}

.vocab-form input[type="text"],
.vocab-form textarea,
.vocab-form select,
.vocab-search {
  width: 100%;
  padding: 0.75rem 0.9rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1.5px solid var(--input-border);
  border-radius: 12px;
  background: var(--input-bg);
  color: var(--input-text);
}

.vocab-form textarea { min-height: 72px; resize: vertical; }

.vocab-form input:focus,
.vocab-form textarea:focus,
.vocab-form select:focus,
.vocab-search:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.vocab-form-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.btn-submit {
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(200, 16, 46, 0.25);
  transition: background 0.15s, transform 0.15s;
}

.btn-submit:hover { background: #a00d24; transform: translateY(-1px); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-vocab-ai {
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--label);
  background: var(--bg);
  border: 1.5px solid var(--input-border);
  border-radius: 12px;
  cursor: pointer;
}

.btn-vocab-ai:hover { border-color: var(--accent); }

.vocab-direction { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-bottom: 1rem; }
.vocab-direction__tabs { display: flex; flex: 1; gap: 0.35rem; flex-wrap: wrap; }

.vocab-dir-tab {
  flex: 1;
  min-width: 72px;
  padding: 0.45rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  border: 1.5px solid var(--input-border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--subtitle);
  cursor: pointer;
}

.vocab-dir-tab.is-active { color: #fff; background: var(--accent); border-color: var(--accent); }
html.dark .vocab-dir-tab.is-active { background: var(--accent); border-color: var(--accent); }

.btn-vocab-swap {
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--input-border);
  border-radius: 10px;
  background: var(--bg);
  cursor: pointer;
  font-size: 1.125rem;
}

.vocab-detect-hint { width: 100%; font-size: 0.75rem; color: var(--subtitle); }
.vocab-field-row, .vocab-example-row { display: flex; gap: 0.4rem; align-items: flex-start; }
.vocab-field-row input, .vocab-example-row textarea { flex: 1; min-width: 0; }
.vocab-field--primary label { color: var(--accent); font-weight: 600; }

.btn-speak {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border: 1.5px solid var(--input-border);
  border-radius: 10px;
  background: var(--input-bg);
  cursor: pointer;
  font-size: 1rem;
}

.btn-speak.is-speaking { animation: speak-pulse 0.8s ease infinite; }
.btn-icon.is-speaking { animation: speak-pulse 0.8s ease infinite; opacity: 0.85; }
@keyframes speak-pulse { 50% { opacity: 0.6; } }

.vocab-stats { font-size: 0.8125rem; color: var(--subtitle); margin-bottom: 0.85rem; text-align: center; }
.vocab-list { list-style: none; display: flex; flex-direction: column; gap: 0.65rem; }

.vocab-item {
  padding: 0.9rem 1rem;
  background: var(--bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.vocab-item__head { display: flex; align-items: flex-start; gap: 0.5rem; margin-bottom: 0.35rem; flex-wrap: wrap; }
.vocab-item__word { flex: 1; font-size: 1.0625rem; font-weight: 700; color: var(--title); min-width: 0; }
.vocab-item__meaning { font-size: 0.9375rem; margin-bottom: 0.25rem; }
.vocab-item__example { font-size: 0.8125rem; color: var(--subtitle); font-style: italic; margin-bottom: 0; }
.vocab-item__meta { font-size: 0.6875rem; color: var(--subtitle); margin-bottom: 0.35rem; }
.vocab-item__actions { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.5rem; }

.vocab-status {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  white-space: nowrap;
}

.vocab-status--new { background: #fef3c7; color: #92400e; }
.vocab-status--learning { background: var(--badge-bg); color: var(--badge-color); }
.vocab-status--mastered { background: #dcfce7; color: #166534; }

.vocab-badge-wrong { font-size: 0.6875rem; font-weight: 600; padding: 0.15rem 0.45rem; border-radius: 999px; background: #fee2e2; color: #991b1b; }

.btn-vocab-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--label);
  transition: border-color 0.15s, color 0.15s;
}

.btn-vocab-sm:hover { border-color: var(--accent); }
.btn-vocab-sm--danger:hover { border-color: #ff0000; color: #ff0000; }

.vocab-empty { text-align: center; font-size: 0.875rem; color: var(--subtitle); padding: 1.5rem 0; }

.vocab-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 0.65rem; margin-bottom: 1rem; }
.vocab-view-tabs { display: flex; gap: 0.35rem; flex-wrap: wrap; }

.vocab-view-tab {
  padding: 0.45rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: inherit;
  border: 1.5px solid var(--input-border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--subtitle);
  cursor: pointer;
}

.vocab-view-tab.is-active { color: #fff; background: var(--accent); border-color: var(--accent); }
html.dark .vocab-view-tab.is-active { background: var(--accent); border-color: var(--accent); }

.vocab-options { display: flex; flex-wrap: wrap; gap: 0.75rem; font-size: 0.75rem; color: var(--subtitle); }
.vocab-options label { display: flex; align-items: center; gap: 0.35rem; cursor: pointer; }

.vocab-reminder {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border-radius: 12px;
  background: #fef3c7;
  border: 1px solid #fcd34d;
  font-size: 0.875rem;
  color: #92400e;
}

.vocab-reminder__text { flex: 1; min-width: 0; }
.vocab-reminder__actions { display: flex; gap: 0.35rem; flex-wrap: wrap; }

.vocab-review {
  padding: 1.25rem;
  background: var(--bg);
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.vocab-review__header { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; margin-bottom: 1rem; }
.vocab-review__title { font-size: 1rem; font-weight: 700; color: var(--title); }
.vocab-review__progress { font-size: 0.8125rem; color: var(--subtitle); }

.review-complete-wrap {
  margin: 1rem 0 2rem;
}

.review-complete {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem 1.25rem;
  text-align: center;
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.review-complete__icon {
  margin: 0;
  font-size: 2.5rem;
  line-height: 1;
}

.review-complete__title {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--title);
}

.review-complete__count {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--subtitle);
}

.review-complete__btn {
  margin-top: 0.5rem;
  text-decoration: none;
}

.vocab-review__empty { text-align: center; font-size: 0.875rem; color: var(--subtitle); padding: 1rem 0; }

.vocab-review__card {
  text-align: center;
  padding: 1.5rem 1rem;
  margin-bottom: 1rem;
  border-radius: 12px;
  border: 1px dashed var(--input-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
}

.vocab-review__word { font-size: 1.5rem; font-weight: 700; color: var(--title); }
.vocab-review__ipa { font-size: 0.875rem; color: var(--subtitle); margin: 0; font-family: "Charis SIL", "Doulos SIL", "Segoe UI", sans-serif; }
.vocab-review__answer { font-size: 0.9375rem; line-height: 1.5; }
.vocab-review__example { font-size: 0.8125rem; color: var(--subtitle); font-style: italic; }
.vocab-review__example--cn { font-style: normal; margin-top: 0.25rem; }
.vocab-review__rate { display: flex; flex-wrap: wrap; gap: 0.35rem; justify-content: center; margin-bottom: 1rem; }
.vocab-review__actions { text-align: center; }

.btn-vocab-rate--again:hover { border-color: #ff0000; color: #ff0000; }

.app-nav__right {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex: 0 0 auto;
  flex-shrink: 0;
  margin-left: auto;
}

.app-nav__auth {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.app-nav__auth--logged-out,
.app-nav__auth--logged-in {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  flex-wrap: nowrap;
}

.app-nav__auth--logged-in[hidden],
.app-nav__auth--logged-out[hidden] {
  display: none;
}

.app-nav__user {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--subtitle);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex-shrink: 1;
  min-width: 0;
}

.app-nav__user-badge {
  display: none;
}

.app-nav__account-wrap {
  position: relative;
  display: none;
  flex-shrink: 0;
}

.app-nav__account-menu {
  position: absolute;
  top: calc(100% + 0.4rem);
  right: 0;
  z-index: 110;
  min-width: 11rem;
  max-width: min(16rem, calc(100vw - 2rem));
  padding: 0.75rem;
  background: var(--bg);
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card-hover);
}

.app-nav__account-menu[hidden] {
  display: none;
}

.app-nav__account-email {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--title);
  line-height: 1.45;
  word-break: break-all;
  margin-bottom: 0.65rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--input-border);
}

.app-nav__account-logout {
  width: 100%;
  justify-content: center;
  text-align: center;
}

.btn-auth {
  padding: 0.35rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
}

.btn-auth--ghost {
  color: var(--label);
  background: transparent;
  border: 1.5px solid var(--input-border);
}

.btn-auth--ghost:hover { background: var(--input-bg); }

.btn-auth--primary {
  color: #fff;
  background: var(--accent);
  border: none;
}

.btn-auth--primary:hover { background: #a00d24; }

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: 100%;
  max-width: 400px;
  background: var(--bg);
  border: 1px solid var(--input-border);
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.modal__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.modal__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--title);
}

.modal__subtitle {
  font-size: 0.875rem;
  color: var(--subtitle);
  margin-top: 0.25rem;
}

.modal__close {
  border: none;
  background: var(--input-bg);
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--subtitle);
}

.modal__form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.modal__form label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--label);
}

.modal__form input {
  width: 100%;
  padding: 0.75rem 0.9rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1.5px solid var(--input-border);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--input-text);
}

.modal__submit {
  width: 100%;
  margin-top: 0.25rem;
}

.modal__error {
  margin: 0;
  padding: 0.65rem 0.75rem;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: #b42318;
  background: rgba(180, 35, 24, 0.08);
  border: 1px solid rgba(180, 35, 24, 0.18);
  border-radius: 0.65rem;
}

html.dark .modal__error {
  color: #ffb4ab;
  background: rgba(255, 180, 171, 0.08);
  border-color: rgba(255, 180, 171, 0.18);
}

.bq-sync-toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  z-index: 1200;
  max-width: min(92vw, 28rem);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  line-height: 1.45;
  color: #14532d;
  background: #ecfdf3;
  border: 1px solid rgba(22, 101, 52, 0.18);
  border-radius: 0.75rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
  transform: translate(-50%, 120%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.24s ease, opacity 0.24s ease;
}

.bq-sync-toast.is-visible {
  transform: translate(-50%, 0);
  opacity: 1;
}

.bq-sync-toast.is-error {
  color: #7f1d1d;
  background: #fef2f2;
  border-color: rgba(127, 29, 29, 0.18);
}

html.dark .bq-sync-toast {
  color: #bbf7d0;
  background: rgba(20, 83, 45, 0.92);
  border-color: rgba(187, 247, 208, 0.18);
}

html.dark .bq-sync-toast.is-error {
  color: #fecaca;
  background: rgba(127, 29, 29, 0.92);
  border-color: rgba(254, 202, 202, 0.18);
}

.bq-sync-status-badge {
  position: fixed;
  right: 0.75rem;
  bottom: 0.75rem;
  z-index: 1150;
  padding: 0.35rem 0.65rem;
  font-size: 0.75rem;
  line-height: 1.3;
  white-space: nowrap;
  color: #374151;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.1);
  pointer-events: none;
  user-select: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.bq-sync-status-badge.is-syncing {
  color: #1d4ed8;
  background: rgba(239, 246, 255, 0.95);
  border-color: rgba(29, 78, 216, 0.2);
}

.bq-sync-status-badge.is-synced {
  color: #14532d;
  background: rgba(236, 253, 243, 0.95);
  border-color: rgba(22, 101, 52, 0.18);
}

.bq-sync-status-badge.is-error {
  color: #7f1d1d;
  background: rgba(254, 242, 242, 0.95);
  border-color: rgba(127, 29, 29, 0.2);
}

html.dark .bq-sync-status-badge {
  color: #cbd5e1;
  background: rgba(30, 41, 59, 0.9);
  border-color: rgba(203, 213, 225, 0.16);
}

html.dark .bq-sync-status-badge.is-syncing {
  color: #bfdbfe;
  background: rgba(29, 78, 216, 0.35);
  border-color: rgba(191, 219, 254, 0.2);
}

html.dark .bq-sync-status-badge.is-synced {
  color: #bbf7d0;
  background: rgba(20, 83, 45, 0.85);
  border-color: rgba(187, 247, 208, 0.18);
}

html.dark .bq-sync-status-badge.is-error {
  color: #fecaca;
  background: rgba(127, 29, 29, 0.85);
  border-color: rgba(254, 202, 202, 0.18);
}

@media (max-width: 767px) {
  .bq-sync-status-badge {
    right: 0.5rem;
    bottom: calc(0.5rem + env(safe-area-inset-bottom, 0px));
    font-size: 0.7rem;
    padding: 0.3rem 0.55rem;
  }
}

  @media (max-width: 767px) {
  .app-nav {
    z-index: 200;
  }

  .app-nav__inner {
    flex-wrap: wrap;
    row-gap: 0.35rem;
    column-gap: 0.5rem;
    align-items: center;
  }

  .app-nav__links-wrap {
    order: 3;
    flex: 1 1 100%;
    width: 100%;
    max-width: 100%;
    overflow: visible;
  }

  .app-nav__links-wrap--two-row .app-nav__links--mobile-two-row {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0.3rem;
    width: 100%;
    min-width: 0;
    padding: 0;
  }

  .app-nav__links-row {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0.375rem;
    width: 100%;
    min-width: 0;
    overflow-x: auto;
    overflow-y: visible;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0.1rem;
  }

  .app-nav__links-row:has(.app-nav__more-wrap.is-open) {
    z-index: 210;
    position: relative;
  }

  .app-nav__more-wrap.is-open {
    z-index: 220;
  }

  .app-nav__more-wrap.is-open .app-nav__more-menu {
    z-index: 500;
    max-height: min(70vh, 22rem);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .app-nav__more-menu {
    display: none !important;
  }

  .bq-mobile-nav-portal {
    position: fixed;
    top: var(--bq-mobile-nav-top, 3.5rem);
    left: 0;
    right: 0;
    z-index: 1200;
    background: var(--bg);
    border-bottom: 1px solid var(--input-border);
    box-shadow: var(--shadow-card);
    max-height: min(70vh, 24rem);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .bq-mobile-nav-portal[hidden] {
    display: none !important;
  }

  .bq-mobile-nav-portal__inner {
    padding: 0.35rem 0.5rem 0.6rem;
  }

  .bq-mobile-nav-portal__link {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 0.7rem 0.85rem;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--title);
    font-size: 0.9375rem;
    font-weight: 600;
    text-align: left;
    text-decoration: none;
    font-family: inherit;
    cursor: pointer;
  }

  .bq-mobile-nav-portal__link:active,
  .bq-mobile-nav-portal__link:hover {
    background: var(--input-bg);
  }

  .bq-mobile-nav-portal__link--soon {
    color: var(--subtitle);
    font-weight: 500;
  }

  .app-nav__links-row::-webkit-scrollbar {
    display: none;
  }

  .app-nav__links-row .app-nav__link,
  .app-nav__links-row .app-nav__more-wrap {
    flex: 0 0 auto;
  }

  .app-nav__links-row .app-nav__more-trigger {
    font-size: 0.6875rem;
    padding: 0.35rem 0.45rem;
  }

  .app-nav__links:not(.app-nav__links--mobile-two-row) {
    flex: 1 1 0;
    min-width: 0;
    flex-wrap: nowrap;
    overflow-x: auto;
    row-gap: 0;
  }

  .app-nav__more-menu {
    right: auto;
    left: 0;
  }

  .app-nav__right {
    order: 2;
    margin-left: auto;
    gap: 0.5rem;
    flex-shrink: 0;
  }

  .app-nav__user-email {
    display: none;
  }

  .app-nav__auth--logged-in .app-nav__user {
    display: none;
  }

  .app-nav__user {
    max-width: none;
    flex-shrink: 0;
  }

  .app-nav__account-wrap {
    display: block;
  }

  .app-nav__user-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 0.625rem;
    font-weight: 700;
    flex-shrink: 0;
    line-height: 1;
    cursor: pointer;
    font-family: inherit;
  }

  .app-nav__user-badge:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }

  #btn-logout {
    display: none;
  }

  .app-nav__auth--logged-out .btn-auth {
    padding: 0.28rem 0.45rem;
    font-size: 0.6875rem;
  }
}

#btn-logout .app-nav__btn-label--mobile {
  display: none;
}

@media (max-width: 640px) {
  :root { --page-padding: 1rem; }
  .btn-auth { padding: 0.3rem 0.5rem; font-size: 0.6875rem; }
  .stats { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 480px) {
  .app-nav__brand { display: none; }
  .vocab-form-actions { flex-direction: column; }
  .vocab-form-actions .btn-submit, .vocab-form-actions .btn-vocab-ai { width: 100%; }
  .word-card { grid-template-columns: 1fr; }
  .word-card__actions { flex-direction: row; flex-wrap: wrap; }
}

/* ── 词库页 (vocab) ── */

.book-selector-wrap {
  margin-bottom: 0.85rem;
}

.book-selector {
  position: relative;
  display: inline-block;
  max-width: 100%;
}

.book-selector__trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  max-width: 100%;
  padding: 0.45rem 0.7rem;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--title);
  background: var(--chat-panel);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  cursor: pointer;
  line-height: 1.3;
  text-align: left;
}

.book-selector__trigger:hover,
.book-selector__trigger:focus-visible {
  border-color: var(--accent, #2563eb);
  outline: none;
}

.book-selector__icon {
  flex-shrink: 0;
  font-size: 0.95rem;
}

.book-selector__prefix {
  flex-shrink: 0;
  color: var(--subtitle);
}

.book-selector__current {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: min(11rem, 48vw);
}

.book-selector__arrow {
  flex-shrink: 0;
  font-size: 0.65rem;
  color: var(--subtitle);
  margin-left: 0.1rem;
}

.book-selector__menu {
  position: absolute;
  z-index: 60;
  top: calc(100% + 0.25rem);
  left: 0;
  min-width: min(15rem, calc(100vw - 2.5rem));
  max-width: min(17rem, calc(100vw - 2.5rem));
  max-height: 15rem;
  overflow-y: auto;
  margin: 0;
  padding: 0.3rem 0;
  list-style: none;
  background: var(--surface, #fff);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.12);
}

.book-selector__option {
  display: block;
  width: 100%;
  padding: 0.48rem 0.8rem;
  font-size: 0.8125rem;
  font-family: inherit;
  text-align: left;
  color: var(--title);
  background: transparent;
  border: none;
  cursor: pointer;
  line-height: 1.35;
}

.book-selector__option:hover,
.book-selector__option:focus-visible {
  background: var(--badge-bg);
  outline: none;
}

.book-selector__option.is-active {
  font-weight: 600;
  color: var(--accent, #2563eb);
}

.vocab-empty-import {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--subtitle);
  font-size: 0.9375rem;
  background: var(--chat-panel);
  border: 1px dashed var(--border);
  border-radius: 0.75rem;
  margin-bottom: 1rem;
}

.vocab-empty-import p {
  margin: 0;
}

.book-header { margin-bottom: 1.25rem; }

.book-header__level {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--badge-bg);
  color: var(--badge-color);
  margin-bottom: 0.5rem;
}

.book-header__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--title);
  line-height: 1.25;
  margin-bottom: 0.35rem;
}

.book-header__desc {
  font-size: 0.9375rem;
  color: var(--subtitle);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.book-header__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.book-header__review-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  padding: 0.65rem 1.25rem;
  font-size: 0.9375rem;
}

.book-header__review-btn[hidden] { display: none; }

.study-stats {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.125rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-card);
}

.study-stats[hidden] { display: none; }

.study-stats__title {
  margin: 0 0 0.875rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}

.study-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.625rem;
}

.study-stats__item {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 0.375rem;
  text-align: center;
}

.study-stats__num {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--title);
  line-height: 1.2;
}

.study-stats__label {
  margin: 0.2rem 0 0;
  font-size: 0.625rem;
  color: var(--subtitle);
  font-weight: 600;
}

.study-stats__today-accuracy {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.study-stats__hardest {
  margin-top: 0.875rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--chat-border);
}

.study-stats__subtitle {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--title);
}

.study-stats__hardest-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.study-stats__hardest-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.8125rem;
  padding: 0.375rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--input-bg);
}

.study-stats__hardest-fr {
  font-weight: 600;
  color: var(--title);
  word-break: break-word;
}

.study-stats__hardest-meta {
  flex-shrink: 0;
  font-size: 0.6875rem;
  color: var(--subtitle);
}

.study-stats__hardest-empty {
  font-size: 0.8125rem;
  color: var(--subtitle);
  padding: 0.25rem 0;
}

@media (max-width: 767px) {
  .study-stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }

  .study-stats__num {
    font-size: 1.25rem;
  }

  .study-stats__label {
    font-size: 0.6875rem;
  }
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.stat {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-md);
  padding: 0.875rem 0.5rem;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.stat__num {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--title);
  line-height: 1.2;
}

.stat__label {
  font-size: 0.6875rem;
  color: var(--subtitle);
  margin-top: 0.2rem;
  font-weight: 500;
}

.filters {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-card);
}

.search {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--title);
  font-size: 1rem;
  font-family: inherit;
  margin-bottom: 0.75rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001l3.85 3.85a1 1 0 0 0 1.415-1.414l-3.85-3.85zm-5.242 1.156a5 5 0 1 1 0-10 5 5 0 0 1 0 10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 0.85rem center;
}

.search:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.filter-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--subtitle);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.4rem;
}

.filter-group { margin-bottom: 0.75rem; }

.lesson-select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--title);
  font-size: 0.9375rem;
  font-family: inherit;
}

.status-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.status-tab {
  flex: 1;
  min-width: 0;
  padding: 0.55rem 0.5rem;
  border: 1.5px solid var(--input-border);
  border-radius: 999px;
  background: var(--input-bg);
  color: var(--subtitle);
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.status-tab.is-active {
  background: #fff1f2;
  border-color: var(--accent);
  color: var(--accent);
}

html.dark .status-tab.is-active {
  background: #3f1d24;
  color: #fda4af;
}

.view-mode-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.view-mode-tab {
  flex: 1;
  padding: 0.6rem 0.75rem;
  border: 1.5px solid var(--input-border);
  border-radius: 999px;
  background: var(--input-bg);
  color: var(--subtitle);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.view-mode-tab.is-active {
  background: #fff1f2;
  border-color: var(--accent);
  color: var(--accent);
}

html.dark .view-mode-tab.is-active {
  background: #3f1d24;
  color: #fda4af;
}

.result-meta {
  font-size: 0.8125rem;
  color: var(--subtitle);
  margin-bottom: 0.75rem;
}

.flashcard-panel[hidden],
.flashcard-stage[hidden],
.flashcard-empty[hidden],
.word-list[hidden] { display: none; }

.flashcard-empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--subtitle);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.flashcard-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  padding: 0.5rem 0 1rem;
}

.flashcard-submode-tabs {
  display: flex;
  gap: 0.5rem;
  width: 100%;
  max-width: 420px;
  flex-wrap: wrap;
}

.flashcard-submode-tab {
  flex: 1;
  padding: 0.55rem 0.75rem;
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--subtitle);
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.flashcard-submode-tab.is-active {
  background: #eff6ff;
  border-color: #3b82f6;
  color: #1d4ed8;
}

html.dark .flashcard-submode-tab.is-active {
  background: #1e3a5f;
  border-color: #60a5fa;
  color: #93c5fd;
}

.flashcard-normal-wrap,
.flashcard-dictation-wrap,
.flashcard-pronunciation-wrap {
  width: 100%;
  max-width: 420px;
}

.flashcard-normal-wrap[hidden],
.flashcard-dictation-wrap[hidden],
.flashcard-pronunciation-wrap[hidden] { display: none; }

.pronunciation-growth {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-lg);
  padding: 0.7rem 0.8rem;
  margin-bottom: 0.8rem;
  box-shadow: var(--shadow-card);
}

.pronunciation-growth__title {
  margin: 0 0 0.6rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--title);
}

.pronunciation-growth__rows {
  display: grid;
  gap: 0.36rem;
}

.pronunciation-growth__row {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.pronunciation-growth__value {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
}

#pron-growth-today,
#pron-growth-past,
.pronunciation-growth__delta {
  font-weight: 700;
  color: var(--title);
  font-variant-numeric: tabular-nums;
}

.pronunciation-growth__count {
  font-weight: 400;
  font-size: 0.75rem;
  color: var(--subtitle);
}

.pronunciation-growth__delta--up {
  color: #15803d;
}

.pronunciation-growth__delta--flat {
  color: var(--subtitle);
}

.pronunciation-growth__delta--down {
  color: #b42318;
}

.pronunciation-sync-debug {
  margin: 0.5rem 0 0;
  padding-top: 0.45rem;
  border-top: 1px dashed var(--input-border);
  font-size: 0.6875rem;
  line-height: 1.4;
  color: var(--subtitle);
  word-break: break-all;
}

.grammar-panel {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: 1rem;
  padding: 1.25rem;
}

.grammar-form textarea {
  width: 100%;
  margin: 0.5rem 0 1rem;
  padding: 0.75rem;
  border: 1px solid var(--input-border);
  border-radius: 0.75rem;
  font: inherit;
  resize: vertical;
  min-height: 6rem;
  background: var(--input-bg);
  color: var(--text);
}

.grammar-status,
.grammar-ai-reply,
.grammar-ai-hint {
  margin: 0.75rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--subtitle);
}

.grammar-result {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 0.75rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
}

.grammar-result h2,
.grammar-history h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.grammar-sync-debug {
  margin: 0.75rem 0 0;
  font-size: 0.6875rem;
  line-height: 1.4;
  color: var(--subtitle);
  word-break: break-all;
}

.grammar-history {
  margin-top: 1.5rem;
}

.grammar-history__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.grammar-history__item {
  padding: 0.875rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
}

.grammar-history__top {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.grammar-history__original,
.grammar-history__corrected,
.grammar-history__explanation {
  margin: 0.25rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.grammar-history__empty {
  padding: 1rem;
  text-align: center;
  color: var(--subtitle);
}

html.dark .pronunciation-growth__delta--up {
  color: #86efac;
}

html.dark .pronunciation-growth__delta--flat {
  color: var(--subtitle);
}

html.dark .pronunciation-growth__delta--down {
  color: #fca5a5;
}

.flashcard-dictation-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  width: 100%;
  min-height: 280px;
  padding: 1.5rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--input-border);
  background: var(--bg);
  box-shadow: var(--shadow-card);
  text-align: center;
  box-sizing: border-box;
}

.flashcard-dictation-prompt {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--title);
  line-height: 1.5;
  margin: 0;
  max-width: 100%;
}

.flashcard-dictation-speak {
  width: 2.75rem;
  height: 2.75rem;
  font-size: 1.125rem;
}

.flashcard-dictation-input {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--title);
  background: var(--input-bg);
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.flashcard-dictation-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.flashcard-dictation-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  width: 100%;
}

.flashcard-dictation-btn {
  flex: 1;
  min-width: 0;
  padding: 0.7rem 0.85rem;
  font-size: 0.875rem;
}

.flashcard-dictation-feedback {
  width: 100%;
  margin: 0;
  padding: 0.75rem 0.875rem;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  line-height: 1.5;
  text-align: left;
  box-sizing: border-box;
}

.flashcard-dictation-feedback[hidden],
.flashcard-dictation-answer[hidden],
.flashcard-dictation-answer__ex[hidden] { display: none; }

.flashcard-dictation-feedback--correct {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}

.flashcard-dictation-feedback--wrong {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

html.dark .flashcard-dictation-feedback--correct {
  background: #14532d;
  color: #bbf7d0;
  border-color: #166534;
}

html.dark .flashcard-dictation-feedback--wrong {
  background: #7f1d1d;
  color: #fecaca;
  border-color: #991b1b;
}

.flashcard-dictation-answer {
  width: 100%;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  text-align: left;
  box-sizing: border-box;
}

.flashcard-dictation-answer__fr {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--title);
  margin: 0 0 0.35rem;
  word-break: break-word;
}

.flashcard-dictation-answer__zh {
  font-size: 0.9375rem;
  color: var(--title);
  margin: 0 0 0.35rem;
  line-height: 1.45;
  word-break: break-word;
}

.flashcard-dictation-answer__ex {
  font-size: 0.8125rem;
  color: var(--subtitle);
  font-style: italic;
  margin: 0;
  line-height: 1.45;
  word-break: break-word;
}

.flashcard-dictation-answer__ex--cn {
  font-style: normal;
  font-size: 0.8125rem;
  color: #666;
  margin-top: 6px;
}

.flashcard-pronunciation-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.85rem;
  width: 100%;
  min-height: 320px;
  padding: 1.5rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--input-border);
  background: var(--bg);
  box-shadow: var(--shadow-card);
  box-sizing: border-box;
}

.flashcard-pronunciation-prompt {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--title);
  text-align: center;
  line-height: 1.5;
}

.flashcard-pronunciation-french-only-hint {
  margin: 0.25rem 0 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
  text-align: center;
  line-height: 1.4;
}

.flashcard-pronunciation-target {
  margin: 0;
  font-size: clamp(1.375rem, 6vw, 1.875rem);
  font-weight: 700;
  color: var(--title);
  text-align: center;
  line-height: 1.3;
  word-break: break-word;
}

.flashcard-pronunciation-phonetic {
  margin: 0;
  font-size: 0.875rem;
  color: var(--subtitle);
  text-align: center;
  line-height: 1.45;
  word-break: break-word;
  font-family: "DM Sans", ui-monospace, SFMono-Regular, Menlo, monospace;
}

.flashcard-pronunciation-mode {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  width: 100%;
}

.flashcard-pronunciation-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  width: 100%;
}

.flashcard-pronunciation-row--listen .flashcard-pronunciation-btn {
  flex: 1;
  min-width: calc(50% - 0.3125rem);
}

.flashcard-pronunciation-section {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
}

.flashcard-pronunciation-section-toggle {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--title);
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.flashcard-pronunciation-section-toggle:hover {
  border-color: var(--accent);
}

.flashcard-pronunciation-section-toggle.is-open {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--input-bg));
}

.flashcard-pronunciation-section-panel {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.5rem;
  padding: 0.875rem;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--chat-panel);
}

.flashcard-pronunciation-section-panel[hidden] {
  display: none;
}

.flashcard-pronunciation-follow {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--subtitle);
  cursor: pointer;
}

.flashcard-pronunciation-follow input {
  margin-top: 0.15rem;
  flex-shrink: 0;
}

.flashcard-pronunciation-record-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.flashcard-pronunciation-record-actions .flashcard-pronunciation-btn {
  flex: 1 1 100%;
  min-width: 100%;
  min-height: 2.75rem;
}

.flashcard-pronunciation-section-panel .flashcard-pronunciation-btn#flashcard-pron-upload {
  width: 100%;
  min-height: 2.75rem;
}

.flashcard-pronunciation-upload-meta {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--subtitle);
}

.flashcard-pronunciation-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  width: 100%;
}

.flashcard-pronunciation-btn {
  flex: 1;
  min-width: 0;
  min-height: 2.75rem;
}

.flashcard-pronunciation-btn.is-recording {
  background: #fee2e2;
  border-color: #fca5a5;
  color: #991b1b;
}

.flashcard-pronunciation-btn.is-active {
  background: #eff6ff;
  border-color: #3b82f6;
  color: #1d4ed8;
}

html.dark .flashcard-pronunciation-btn.is-active {
  background: #1e3a5f;
  border-color: #60a5fa;
  color: #93c5fd;
}

html.dark .flashcard-pronunciation-btn.is-recording {
  background: #7f1d1d;
  border-color: #991b1b;
  color: #fecaca;
}

.flashcard-pronunciation-upload-hint {
  margin: 0.35rem 0 0;
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--subtitle);
}

.flashcard-pronunciation-record-actions .flashcard-pronunciation-btn.is-recording {
  background: #fee2e2;
  border-color: #fca5a5;
  color: #991b1b;
}

html.dark .flashcard-pronunciation-record-actions .flashcard-pronunciation-btn.is-recording {
  background: #7f1d1d;
  border-color: #991b1b;
  color: #fecaca;
}

.flashcard-pronunciation-status {
  margin: 0;
  min-height: 1.25rem;
  font-size: 0.875rem;
  color: var(--subtitle);
  text-align: center;
  line-height: 1.5;
}

.flashcard-pronunciation-status.is-loading {
  color: var(--accent);
  font-weight: 600;
}

.flashcard-pronunciation-result {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
}

.flashcard-pronunciation-result[hidden] { display: none; }

.flashcard-pronunciation-score {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 800;
  text-align: center;
  color: var(--accent);
  line-height: 1.2;
}

.flashcard-pronunciation-dimensions {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--title);
  text-align: center;
  line-height: 1.45;
}

.flashcard-pronunciation-issues-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.flashcard-pronunciation-issues-wrap[hidden] {
  display: none;
}

.flashcard-pronunciation-issues-wrap .flashcard-pronunciation-label {
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.875rem;
}

.flashcard-pronunciation-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  text-align: left;
}

.flashcard-pronunciation-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--subtitle);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.flashcard-pronunciation-value {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--title);
  line-height: 1.45;
  word-break: break-word;
}

.flashcard-pronunciation-words {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  line-height: 1.5;
}

.pron-word {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
}

.pron-word--ok {
  background: #ecfdf5;
  color: #166534;
  border: 1px solid #86efac;
}

.pron-word--bad {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

html.dark .pron-word--ok {
  background: #14532d;
  color: #bbf7d0;
  border-color: #166534;
}

html.dark .pron-word--bad {
  background: #7f1d1d;
  color: #fecaca;
  border-color: #991b1b;
}

.flashcard-pronunciation-mistakes {
  margin: 0;
  padding-left: 1.1rem;
  color: #991b1b;
  font-size: 0.875rem;
  line-height: 1.5;
}

html.dark .flashcard-pronunciation-mistakes {
  color: #fecaca;
}

.flashcard-pronunciation-mistakes[hidden] { display: none; }

.flashcard-pronunciation-feedback {
  margin: 0;
  padding: 0.75rem 0.875rem;
  border-radius: var(--radius-sm);
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1e3a8a;
  font-size: 0.875rem;
  line-height: 1.55;
}

html.dark .flashcard-pronunciation-feedback {
  background: #1e3a5f;
  border-color: #3b82f6;
  color: #bfdbfe;
}

.flashcard-pronunciation-history {
  margin-top: 0.25rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--input-border);
}

.flashcard-pronunciation-history__title {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--subtitle);
}

.flashcard-pronunciation-history__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}

.flashcard-pronunciation-history__item {
  padding: 0.75rem 0.875rem;
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
}

.flashcard-pronunciation-history__top {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
  margin-bottom: 0.35rem;
}

.flashcard-pronunciation-history__top strong {
  color: var(--accent);
  font-size: 0.9375rem;
}

.flashcard-pronunciation-history__sentence,
.flashcard-pronunciation-history__heard,
.flashcard-pronunciation-history__mistakes {
  margin: 0.2rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--title);
  word-break: break-word;
}

.flashcard-pronunciation-history__heard {
  color: var(--subtitle);
}

.flashcard-pronunciation-history__mistakes {
  color: #991b1b;
}

html.dark .flashcard-pronunciation-history__mistakes {
  color: #fecaca;
}

.flashcard-pronunciation-history__empty {
  font-size: 0.8125rem;
  color: var(--subtitle);
  padding: 0.25rem 0;
}

.flashcard-pronunciation-history__more {
  display: block;
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.4rem 0.75rem;
  border: 1px dashed var(--input-border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--subtitle);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.flashcard-pronunciation-history__more:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.flashcard-progress {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--subtitle);
  margin: 0;
}

.flashcard-scene {
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  perspective: 1000px;
  -webkit-perspective: 1000px;
}

.flashcard {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  aspect-ratio: 3 / 4;
  min-height: 280px;
  max-height: min(480px, calc(100dvh - 15rem));
  cursor: pointer;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
}

.flashcard:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: var(--radius-lg);
}

.flashcard__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transform: rotateY(0deg);
  -webkit-transform: rotateY(0deg);
  transition: transform 0.6s cubic-bezier(0.4, 0.2, 0.2, 1);
  will-change: transform;
}

.flashcard__inner--no-transition {
  transition: none !important;
}

.flashcard.is-flipped .flashcard__inner {
  transform: rotateY(180deg);
  -webkit-transform: rotateY(180deg);
}

.flashcard__face {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1.5rem 1.25rem 1.25rem;
  border-radius: var(--radius-lg);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  box-sizing: border-box;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
}

.flashcard__face--front {
  transform: rotateY(0deg) translateZ(1px);
  -webkit-transform: rotateY(0deg) translateZ(1px);
  background: var(--bg);
  border: 1.5px solid var(--input-border);
  box-shadow:
    0 2px 4px rgba(15, 23, 42, 0.04),
    0 8px 24px rgba(15, 23, 42, 0.08);
}

.flashcard__face--front::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), #ff6b6b);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

html.dark .flashcard__face--front {
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.15),
    0 8px 24px rgba(0, 0, 0, 0.25);
}

.flashcard__face--back {
  transform: rotateY(180deg) translateZ(1px);
  -webkit-transform: rotateY(180deg) translateZ(1px);
  background: var(--input-bg);
  border: 1.5px solid var(--chat-border);
  box-shadow:
    0 4px 8px rgba(15, 23, 42, 0.06),
    0 12px 32px rgba(15, 23, 42, 0.12);
}

html.dark .flashcard__face--back {
  background: #1a2332;
  box-shadow:
    0 4px 8px rgba(0, 0, 0, 0.2),
    0 12px 32px rgba(0, 0, 0, 0.35);
}

.flashcard__front-main,
.flashcard__back-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  text-align: center;
  min-height: 0;
  padding-top: 0.5rem;
  width: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.flashcard__back-main {
  gap: 0.75rem;
}

.flashcard__lesson {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 1;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: var(--input-bg);
  color: var(--subtitle);
  border: 1px solid var(--input-border);
}

.flashcard__lesson[hidden] { display: none; }

.flashcard__word {
  margin: 0;
  font-size: clamp(1.5rem, 6vw, 2.25rem);
  font-weight: 700;
  color: var(--title);
  line-height: 1.2;
  word-break: break-word;
  max-width: 100%;
}

.flashcard__hint {
  margin: 0;
  font-size: 0.75rem;
  color: var(--subtitle);
  opacity: 0.7;
  text-align: center;
  flex-shrink: 0;
}

.flashcard__meaning {
  margin: 0;
  font-size: clamp(1.25rem, 5vw, 1.625rem);
  font-weight: 700;
  color: var(--title);
  line-height: 1.35;
  word-break: break-word;
  max-width: 100%;
}

.flashcard__back-french {
  margin: 0;
  font-size: clamp(1.125rem, 4.5vw, 1.5rem);
  font-weight: 600;
  color: var(--subtitle);
  line-height: 1.4;
  word-break: break-word;
  max-width: 100%;
}

.flashcard-speak-back-btn {
  flex-shrink: 0;
  min-width: 8.5rem;
  min-height: 2.75rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 700;
}

.flashcard__example {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--subtitle);
  font-style: italic;
  line-height: 1.5;
  max-width: 100%;
  word-break: break-word;
}

.flashcard__example--cn {
  font-style: normal;
  font-size: 0.84375rem;
  color: #666;
  margin-top: 6px;
}

.flashcard__example[hidden],
.flashcard__example--cn[hidden] { display: none; }

.flashcard-speak--front {
  width: 3rem;
  height: 3rem;
  font-size: 1.25rem;
  flex-shrink: 0;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.1);
}

html.dark .flashcard-speak--front {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.flashcard__rate {
  display: flex;
  gap: 0.5rem;
  width: 100%;
  flex-shrink: 0;
  padding-top: 0.25rem;
}

.flashcard-rate {
  flex: 1;
  min-height: 2.75rem;
  padding: 0.6rem 0.5rem;
  border: 1.5px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s, filter 0.12s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.flashcard-rate:active {
  transform: scale(0.96);
}

.flashcard-rate--again {
  background: #fee2e2;
  color: #991b1b;
  border-color: #fca5a5;
}

.flashcard-rate--hard {
  background: #ffedd5;
  color: #9a3412;
  border-color: #fdba74;
}

.flashcard-rate--good {
  background: #dcfce7;
  color: #166534;
  border-color: #86efac;
}

html.dark .flashcard-rate--again {
  background: #7f1d1d;
  color: #fecaca;
  border-color: #991b1b;
}

html.dark .flashcard-rate--hard {
  background: #7c2d12;
  color: #fed7aa;
  border-color: #9a3412;
}

html.dark .flashcard-rate--good {
  background: #14532d;
  color: #bbf7d0;
  border-color: #166534;
}

.flashcard-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  max-width: 420px;
}

.flashcard-controls .btn-vocab-sm {
  flex: 1;
  min-width: 0;
}

.flashcard-speak:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (prefers-reduced-motion: reduce) {
  .flashcard__inner {
    transition-duration: 0.01ms;
  }
}

/* ── 闪卡手机端（iPhone / Android）── */
@media (max-width: 767px) {
  .flashcard-stage {
    gap: 1.75rem;
    margin-inline: calc(-1 * var(--page-padding) + 0.5rem);
    padding: 0.5rem max(0.625rem, env(safe-area-inset-right)) calc(1rem + env(safe-area-inset-bottom, 0px)) max(0.625rem, env(safe-area-inset-left));
    box-sizing: border-box;
  }

  .flashcard-progress {
    font-size: 0.9375rem;
  }

  .flashcard-submode-tabs,
  .flashcard-normal-wrap,
  .flashcard-dictation-wrap,
  .flashcard-pronunciation-wrap,
  .flashcard-controls {
    width: 100%;
    max-width: none;
  }

  .flashcard-submode-tabs {
    gap: 0.625rem;
  }

  .flashcard-submode-tab {
    min-height: 2.75rem;
    padding: 0.65rem 0.85rem;
    font-size: 0.9375rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }

  .flashcard {
    max-width: none;
    width: 100%;
    min-height: min(320px, 50dvh);
    max-height: min(420px, calc(100dvh - 14rem));
    aspect-ratio: 3 / 4;
  }

  .flashcard-scene {
    max-width: none;
    width: 100%;
  }

  .flashcard__face {
    padding: 1.75rem 1.25rem 1.25rem;
  }

  .flashcard__front-main,
  .flashcard__back-main {
    gap: 1.125rem;
  }

  .flashcard__word {
    font-size: clamp(1.875rem, 9vw, 2.625rem);
  }

  .flashcard__meaning {
    font-size: clamp(1.375rem, 6.5vw, 1.875rem);
  }

  .flashcard__back-french {
    font-size: clamp(1.25rem, 5.5vw, 1.625rem);
  }

  .flashcard-speak-back-btn {
    min-width: 9rem;
    min-height: 3rem;
    font-size: 1rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }

  .flashcard__example {
    font-size: 1rem;
    line-height: 1.55;
  }

  .flashcard__hint {
    font-size: 0.875rem;
  }

  .flashcard__lesson {
    top: 1.125rem;
    left: 1.125rem;
    font-size: 0.75rem;
    padding: 0.3rem 0.65rem;
  }

  .flashcard-speak--front,
  .flashcard-dictation-speak {
    width: 3.25rem;
    height: 3.25rem;
    min-width: 3.25rem;
    min-height: 3.25rem;
    font-size: 1.375rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }

  .flashcard__rate {
    gap: 0.625rem;
  }

  .flashcard-rate {
    min-height: 3rem;
    padding: 0.75rem 0.5rem;
    font-size: 0.9375rem;
  }

  .flashcard-controls {
    gap: 0.875rem;
  }

  .flashcard-controls .btn-vocab-sm {
    flex: 1;
    min-height: 3rem;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }

  .flashcard-dictation-card {
    min-height: min(420px, 58dvh);
    gap: 1.125rem;
    padding: 1.75rem 1.25rem;
  }

  .flashcard-dictation-prompt {
    font-size: 1.0625rem;
    line-height: 1.55;
  }

  .flashcard-dictation-input {
    padding: 0.95rem 1.05rem;
    font-size: 1.0625rem;
    min-height: 3rem;
  }

  .flashcard-dictation-actions {
    gap: 0.625rem;
  }

  .flashcard-dictation-btn {
    min-height: 3rem;
    padding: 0.8rem 1rem;
    font-size: 0.9375rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }

  .flashcard-dictation-feedback {
    font-size: 1rem;
    padding: 0.875rem 1rem;
  }

  .flashcard-dictation-answer__fr {
    font-size: 1.375rem;
  }

  .flashcard-dictation-answer__zh {
    font-size: 1.0625rem;
  }

  .flashcard-dictation-answer__ex {
    font-size: 0.9375rem;
  }

  .flashcard-pronunciation-card {
    min-height: min(420px, 58dvh);
    padding: 1.75rem 1.25rem;
  }

  .pronunciation-growth {
    padding: 0.6rem 0.7rem;
    margin-bottom: 0.65rem;
  }

  .pronunciation-growth__title {
    font-size: 0.75rem;
    margin-bottom: 0.5rem;
  }

  .pronunciation-growth__row {
    font-size: 0.75rem;
  }

  .flashcard-pronunciation-target {
    font-size: clamp(1.5rem, 7vw, 2rem);
  }

  .flashcard-pronunciation-section-toggle {
    min-height: 3rem;
    font-size: 0.9375rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }

  .flashcard-pronunciation-btn {
    min-height: 3rem;
    font-size: 0.9375rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }

  .flashcard-pronunciation-score {
    font-size: 2.25rem;
  }
}

@media (max-width: 480px) {
  .flashcard-dictation-actions {
    flex-direction: column;
  }

  .flashcard-dictation-btn {
    width: 100%;
  }
}

.word-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  list-style: none;
}

.word-card {
  background: var(--bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem;
  align-items: start;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.15s, border-color 0.15s;
}

.word-card:hover {
  border-color: var(--chat-border);
  box-shadow: var(--shadow-card-hover);
}

.word-card__french {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 0.25rem;
  word-break: break-word;
}

.word-card__chinese {
  font-size: 0.9375rem;
  line-height: 1.45;
  margin-bottom: 0.35rem;
}

.word-card__ipa {
  font-size: 0.8125rem;
  color: var(--subtitle);
  margin: 0 0 0.35rem;
  font-family: "Charis SIL", "Doulos SIL", "Segoe UI", sans-serif;
  letter-spacing: 0.02em;
}

.word-card__example {
  font-size: 0.8125rem;
  color: var(--subtitle);
  font-style: italic;
  line-height: 1.45;
  margin-bottom: 0.35rem;
}

.word-card__example--cn {
  font-style: normal;
  font-size: 0.84375rem;
  color: #666;
  margin-top: 6px;
  margin-bottom: 0.35rem;
}

.word-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.pill {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
}

.pill--lesson {
  background: var(--input-bg);
  color: var(--subtitle);
  border: 1px solid var(--input-border);
}

.pill--mastered { background: #dcfce7; color: #166534; }
html.dark .pill--mastered { background: #14532d; color: #bbf7d0; }
.pill--new { background: #fef3c7; color: #92400e; }
html.dark .pill--new { background: #78350f; color: #fde68a; }
.pill--learning { background: #dbeafe; color: #1e40af; }
html.dark .pill--learning { background: #1e3a8a; color: #bfdbfe; }

.word-card__actions {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover { background: #fff1f2; }
html.dark .btn-icon:hover { background: #3f1d24; }

.btn-toggle,
.btn-notebook {
  padding: 0.45rem 0.65rem;
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--subtitle);
  font-size: 0.6875rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}

.btn-toggle.is-mastered { background: #dcfce7; border-color: transparent; color: #166534; }
html.dark .btn-toggle.is-mastered { background: #14532d; color: #bbf7d0; }
.btn-toggle.is-learning { background: #dbeafe; border-color: transparent; color: #1e40af; }
html.dark .btn-toggle.is-learning { background: #1e3a8a; color: #bfdbfe; }
.btn-notebook.is-added { opacity: 0.6; cursor: default; }

.empty-state,
.loading-state,
.error-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--subtitle);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.error-state { color: var(--accent); }

.loading-state__spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--input-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  margin: 0 auto 1rem;
  animation: ui-spin 0.8s linear infinite;
}

@keyframes ui-spin { to { transform: rotate(360deg); } }

.learn-panel[hidden] { display: none; }

/* ── AI 单词本 (notebook) ── */

.notebook-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.notebook-stat {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.5rem;
  text-align: center;
  box-shadow: var(--shadow-card);
}

button.notebook-stat--filter {
  width: 100%;
  font: inherit;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}

button.notebook-stat--filter:hover {
  border-color: var(--accent);
}

button.notebook-stat--filter.is-active {
  border-color: var(--accent);
  background: #fff1f2;
}

html.dark button.notebook-stat--filter.is-active {
  background: #3f1d24;
}

.notebook-stat__num {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--title);
  line-height: 1.2;
}

.notebook-stat__label {
  margin: 0.2rem 0 0;
  font-size: 0.6875rem;
  color: var(--subtitle);
  font-weight: 600;
}

.notebook-category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.notebook-category-tab {
  padding: 0.45rem 0.85rem;
  border: 1.5px solid var(--input-border);
  border-radius: 999px;
  background: var(--input-bg);
  color: var(--subtitle);
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.notebook-category-tab.is-active {
  background: #fff1f2;
  border-color: var(--accent);
  color: var(--accent);
}

html.dark .notebook-category-tab.is-active {
  background: #3f1d24;
}

.notebook-filters {
  margin-bottom: 1rem;
}

.notebook-list {
  margin-top: 0;
}

.notebook-empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--subtitle);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.notebook-empty[hidden] { display: none; }

.notebook-pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--input-border);
}

.notebook-pagination[hidden] { display: none; }

.notebook-pagination__info {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--title);
  min-width: 6rem;
  text-align: center;
}

.notebook-pagination__btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

#vocab-pagination {
  margin-bottom: 1rem;
}

.notebook-card__head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.notebook-card__text {
  display: flex;
  flex-direction: column;
}

.notebook-card__text .word-card__french {
  margin-bottom: 0.1rem;
}

.notebook-card__text .word-card__ipa {
  font-size: 0.8125rem;
  color: var(--subtitle);
  margin: 0 0 0.35rem;
  line-height: 1.4;
  font-family: "Charis SIL", "Doulos SIL", "Segoe UI", sans-serif;
  letter-spacing: 0.02em;
}

.notebook-card__text .word-card__chinese {
  margin-bottom: 0.35rem;
}

.notebook-card__head .word-card__french {
  margin: 0;
  flex: 1;
}

.notebook-card__speak {
  flex-shrink: 0;
}

.notebook-card__speak-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.notebook-card__speak-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.35rem 0.65rem;
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--title);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s;
}

.notebook-card__speak-btn:hover:not(:disabled) {
  background: #fff1f2;
  border-color: var(--accent);
}

html.dark .notebook-card__speak-btn:hover:not(:disabled) {
  background: #3f1d24;
}

.notebook-card__speak-btn--empty,
.notebook-card__speak-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  color: var(--subtitle);
}

.notebook-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.35rem 0;
}

.notebook-card__explanation {
  margin: 0.35rem 0 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.notebook-card__meta {
  margin-top: 0.5rem;
}

.notebook-card__actions {
  flex-direction: column;
  align-items: stretch;
}

.notebook-card__main {
  flex: 1;
  min-width: 0;
  cursor: pointer;
}

.notebook-card__rates {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.65rem;
}

.notebook-card__rates .flashcard-rate {
  flex: 1 1 auto;
  min-width: 4.5rem;
  padding: 0.45rem 0.55rem;
  font-size: 0.75rem;
}

.notebook-card__conj-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.55rem;
}

.notebook-card__conj-btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.notebook-card__conj-btn--primary {
  background: var(--accent, #2563eb);
  color: #fff;
  border-color: transparent;
}

.notebook-card__wp-hint {
  font-size: 0.75rem;
  color: var(--text-muted, #64748b);
}

.follow-verb-match__conj {
  display: inline-block;
  margin-top: 0.45rem;
  text-decoration: none;
}

.notebook-card__detail {
  margin-top: 0.75rem;
  padding: 0.85rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
}

.notebook-card__detail[hidden] {
  display: none;
}

.notebook-card__detail-list {
  margin: 0;
  display: grid;
  gap: 0.55rem;
}

.notebook-card__detail-list > div {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.5rem;
  align-items: start;
}

.notebook-card__detail-list dt {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--subtitle);
}

.notebook-card__detail-list dd {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--title);
  line-height: 1.5;
  word-break: break-word;
}

.notebook-card--expanded {
  border-color: var(--accent);
}

.notebook-card__actions .btn-vocab-sm.is-active {
  border-color: var(--accent);
  color: var(--accent);
}

.notebook-card.notebook-card--has-ai {
  grid-template-rows: auto auto auto;
}

.notebook-ai-panel {
  grid-column: 1 / -1;
  margin-top: 0.25rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
}

.notebook-ai-panel[hidden] {
  display: none;
}

.notebook-ai-panel__loading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--subtitle);
  font-size: 0.875rem;
}

.notebook-ai-panel__loading .loading-state__spinner,
.notebook-ai-panel__spinner {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  margin: 0;
  border-width: 2px;
  animation: ui-spin 0.8s linear infinite;
}

.notebook-ai-panel__error {
  margin: 0 0 0.5rem;
  color: #b91c1c;
  font-size: 0.875rem;
}

html.dark .notebook-ai-panel__error {
  color: #fca5a5;
}

.notebook-ai-panel__retry {
  margin-top: 0.25rem;
}

.notebook-ai-panel__section {
  margin-bottom: 0.875rem;
}

.notebook-ai-panel__section:last-child {
  margin-bottom: 0;
}

.notebook-ai-panel__explanation {
  margin: 0;
  font-size: 0.875rem;
  color: var(--subtitle);
  line-height: 1.55;
}

.notebook-ai-panel__title {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--title);
}

.notebook-ai-panel__examples {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.notebook-ai-panel__example {
  padding: 0.5rem 0.625rem;
  border-radius: var(--radius-sm);
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
}

.notebook-ai-panel__fr {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--title);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  word-break: break-word;
}

.notebook-ai-panel__fr-text {
  flex: 1 1 auto;
  min-width: 0;
}

.notebook-ai-panel__zh {
  margin: 0.25rem 0 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
  line-height: 1.45;
}

.notebook-ai-panel__list {
  margin: 0;
  padding-left: 1.125rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
  line-height: 1.55;
}

.notebook-ai-panel__list li + li {
  margin-top: 0.25rem;
}

.notebook-ai-panel__speak {
  width: 2rem;
  height: 2rem;
  font-size: 0.875rem;
  flex-shrink: 0;
  margin-left: auto;
}

@media (max-width: 767px) {
  .notebook-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .notebook-category-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.25rem;
  }

  .notebook-category-tab {
    flex: 0 0 auto;
    white-space: nowrap;
  }
}

/* ── 复习页 (review) ── */

.review-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.review-stat {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.review-stat__num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--title);
}

.review-stat__label {
  font-size: 0.8125rem;
  color: var(--subtitle);
  margin-top: 0.25rem;
}

.review-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.review-tabs--scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  flex-wrap: nowrap;
  padding-bottom: 0.25rem;
}

.review-tabs--scroll .review-tab {
  flex: 0 0 auto;
  white-space: nowrap;
}

.review-tab {
  flex: 1;
  padding: 0.6rem 0.75rem;
  border: 1.5px solid var(--input-border);
  border-radius: 999px;
  background: var(--input-bg);
  color: var(--subtitle);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.review-tab.is-active {
  background: #fff1f2;
  border-color: var(--accent);
  color: var(--accent);
}

html.dark .review-tab.is-active {
  background: #3f1d24;
  color: #fda4af;
}

.review-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.review-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  background: var(--bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.review-list-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-card-hover);
}

.review-list-item__word {
  font-weight: 600;
  color: var(--title);
}

.review-list-item__meta {
  font-size: 0.75rem;
  color: var(--subtitle);
}

.review-list-item__badge {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  white-space: nowrap;
}

.badge--due { background: #fef3c7; color: #92400e; }
.badge--done { background: #dcfce7; color: #166534; }
.badge--mastered { background: #dbeafe; color: #1e40af; }
.badge--hard { background: #fee2e2; color: #991b1b; }
.badge--error { background: #ffedd5; color: #9a3412; }
html.dark .badge--due { background: #78350f; color: #fde68a; }
html.dark .badge--done { background: #14532d; color: #bbf7d0; }
html.dark .badge--mastered { background: #1e3a8a; color: #bfdbfe; }
html.dark .badge--hard { background: #7f1d1d; color: #fecaca; }
html.dark .badge--error { background: #7c2d12; color: #fed7aa; }

.review-card-wrap { margin-bottom: 1rem; }

.review-status-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  border: 1.5px solid var(--input-border);
  border-radius: 999px;
  background: var(--input-bg);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  color: var(--subtitle);
}

.review-status-toggle.is-mastered { background: #dcfce7; color: #166534; border-color: transparent; }
.review-status-toggle.is-learning { background: #dbeafe; color: #1e40af; border-color: transparent; }

.review-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 0.5rem;
}

.review-card-actions--srs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.review-card-actions--srs #btn-skip {
  grid-column: 1 / -1;
}

.review-empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--subtitle);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.review-loading {
  text-align: center;
  padding: 2rem;
  color: var(--subtitle);
}

.review-panel[hidden],
.review-card-wrap[hidden],
.dictation-wrap[hidden] { display: none; }

.review-mode-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.review-mode-tab {
  flex: 1;
  padding: 0.55rem 0.75rem;
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--subtitle);
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.review-mode-tab.is-active {
  background: #eff6ff;
  border-color: #3b82f6;
  color: #1d4ed8;
}

html.dark .review-mode-tab.is-active {
  background: #1e3a5f;
  border-color: #60a5fa;
  color: #93c5fd;
}

.dictation-card {
  text-align: center;
  padding: 1.5rem 1rem;
  margin-bottom: 1rem;
  border-radius: 12px;
  border: 1px dashed var(--input-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.dictation-prompt {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--title);
  line-height: 1.4;
  margin: 0;
}

.dictation-input-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--subtitle);
  align-self: stretch;
  text-align: left;
}

.dictation-input {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 0.85rem 1rem;
  font-size: 1.0625rem;
  font-family: inherit;
  color: var(--title);
  background: var(--input-bg);
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.dictation-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.dictation-input:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.dictation-feedback {
  width: 100%;
  margin: 0;
  padding: 0.75rem 0.875rem;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  line-height: 1.5;
  text-align: left;
}

.dictation-feedback--correct {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}

.dictation-feedback--wrong {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

html.dark .dictation-feedback--correct {
  background: #14532d;
  color: #bbf7d0;
  border-color: #166534;
}

html.dark .dictation-feedback--wrong {
  background: #7f1d1d;
  color: #fecaca;
  border-color: #991b1b;
}

.dictation-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

@media (max-width: 480px) {
  .book-header__review-btn {
    width: 100%;
  }

  .dictation-prompt {
    font-size: 1.2rem;
  }

  .dictation-actions .btn-submit,
  .dictation-actions .btn-vocab-sm {
    flex: 1;
    min-width: 0;
  }
}

.module-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  background: var(--chat-panel);
  border: 1px solid var(--input-border);
  box-shadow: var(--shadow-card);
}

.follow-along-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.follow-along-slow-preview {
  margin: 0;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  border: 1px dashed var(--input-border);
  font-size: 0.875rem;
  color: var(--subtitle);
  text-align: center;
  line-height: 1.5;
  word-break: break-word;
}

.follow-along-speed {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  width: 100%;
}

.follow-along-speed-tab {
  flex: 1;
  min-width: 96px;
  padding: 0.5rem 0.55rem;
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: inherit;
  border: 1.5px solid var(--input-border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--subtitle);
  cursor: pointer;
}

.follow-along-speed-tab.is-active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

html.dark .follow-along-speed-tab.is-active {
  background: var(--accent);
  border-color: var(--accent);
}

.follow-along-five-dimensions {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--title);
  line-height: 1.45;
}

.follow-along-history-section {
  margin-top: 1.5rem;
}

.upload-score-btn {
  width: 100%;
  min-height: 2.75rem;
}

.upload-score-tabs {
  display: flex;
  gap: 0.5rem;
  margin: 0 0 1rem;
  padding: 0.25rem;
  border-radius: 12px;
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
}

.upload-score-tabs__btn {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--subtitle);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.55rem 0.75rem;
  border-radius: 9px;
  cursor: pointer;
}

.upload-score-tabs__btn.is-active {
  background: var(--card);
  color: var(--title);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.upload-score-panel[hidden] {
  display: none;
}

.upload-history-section--tab {
  margin-top: 0;
}

.upload-history-item__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.65rem;
}

.upload-score-meta {
  margin-top: 0.25rem;
}

.upload-suggestions-list {
  color: var(--title);
}

.upload-oral-level {
  margin: 0.35rem 0 0.85rem;
  text-align: center;
  line-height: 1.45;
}

.upload-oral-level[hidden] { display: none; }

.upload-oral-level__head {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--title);
}

.upload-oral-level__title {
  font-weight: 700;
}

.upload-oral-level__badge {
  display: inline-block;
  padding: 0.18rem 0.65rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, var(--input-bg));
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  color: var(--accent);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.upload-oral-level__current,
.upload-oral-level__progress {
  margin: 0.35rem 0 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--title);
  line-height: 1.5;
}

.upload-oral-level__progress {
  color: var(--accent);
}

.upload-oral-level__progress[hidden] { display: none; }

.upload-oral-level__max-advice {
  margin: 0.35rem 0 0;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.55;
}

.upload-oral-level__max-advice[hidden] { display: none; }

.upload-oral-level__hint {
  margin: 0.5rem 0 0;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--subtitle);
  line-height: 1.55;
}

.upload-dimension-tips-wrap {
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--input-border);
}

.upload-dimension-tips-sub {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--subtitle);
}

.upload-dimension-tips-wrap[hidden] { display: none; }

.upload-dimension-tips-list {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--title);
}

.upload-dimension-tips-list li {
  position: relative;
  padding-left: 1rem;
}

.upload-dimension-tips-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.upload-five-dimensions {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--title);
  line-height: 1.45;
}

.upload-history-section {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--input-border);
}

/* ── 发音历史面板（上传评分 Tab 复用） ── */

.read-history-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .read-history-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.read-history-stat {
  padding: 0.85rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--chat-border);
  background: var(--chat-panel);
  box-shadow: var(--shadow-card);
  text-align: center;
}

.read-history-stat__value {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.read-history-stat__label {
  margin: 0;
  font-size: 0.75rem;
  color: var(--subtitle);
}

.page--wide {
  max-width: 72rem;
}

.admin-dashboard__loading,
.admin-dashboard__denied,
.admin-dashboard__empty {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--subtitle);
  font-size: 0.9375rem;
}

.admin-dashboard__cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

@media (min-width: 768px) {
  .admin-dashboard__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .admin-dashboard__cards {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

.admin-dashboard__card {
  padding: 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--chat-border);
  background: var(--surface, var(--chat-bg));
}

.admin-dashboard__card-value {
  margin: 0 0 0.2rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.admin-dashboard__card-label {
  margin: 0 0 0.15rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--title);
}

.admin-dashboard__card-sub {
  margin: 0;
  font-size: 0.6875rem;
  color: var(--subtitle);
}

.admin-dashboard__section {
  margin-bottom: 1.5rem;
  padding: 1rem;
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-lg);
  background: var(--surface, var(--chat-bg));
}

.admin-dashboard__section-title,
.admin-dashboard__panel-title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}

.admin-dashboard__section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.admin-dashboard__section-head .admin-dashboard__section-title {
  margin-bottom: 0;
}

.admin-dashboard__sort {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.admin-dashboard__sort select {
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--chat-border);
  background: var(--chat-bg);
  color: var(--title);
  font-size: 0.8125rem;
}

.admin-dashboard__chart-wrap {
  width: 100%;
  overflow-x: auto;
}

.admin-dashboard__chart-wrap canvas {
  display: block;
  width: 100%;
}

.admin-dashboard__table-wrap {
  margin-top: 1rem;
  overflow-x: auto;
}

.admin-dashboard__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.admin-dashboard__table th,
.admin-dashboard__table td {
  padding: 0.55rem 0.65rem;
  text-align: left;
  border-bottom: 1px solid var(--chat-border);
}

.admin-dashboard__table th {
  font-weight: 600;
  color: var(--subtitle);
}

.admin-dashboard__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 768px) {
  .admin-dashboard__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .admin-dashboard__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.admin-dashboard__panel {
  padding: 1rem;
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-lg);
  background: var(--surface, var(--chat-bg));
}

.admin-dashboard__bucket-title {
  margin: 0.75rem 0 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--subtitle);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.admin-dashboard__bucket-title:first-child {
  margin-top: 0;
}

.read-history-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.read-history-toolbar__group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.read-history-filter {
  padding: 0.45rem 0.85rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border: 1.5px solid var(--chat-border);
  border-radius: 999px;
  background: var(--chat-panel);
  color: var(--subtitle);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.read-history-filter.is-active {
  border-color: var(--accent);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--chat-panel));
}

.read-history-sort-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.read-history-sort {
  padding: 0.4rem 0.65rem;
  font-size: 0.8125rem;
  border: 1.5px solid var(--chat-border);
  border-radius: var(--radius-md);
  background: var(--chat-panel);
  color: var(--title);
}

.read-history-section {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.read-history-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.read-history-item__source {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}

.read-history-item__sentence {
  margin: 0.35rem 0 0.65rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--title);
  line-height: 1.45;
}

.read-history-item__advice-wrap {
  margin-top: 0.25rem;
}

.read-history-item__advice,
.read-history-item__advice-list {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.read-history-item__advice-list {
  padding-left: 1.1rem;
}

.read-history-item--low .upload-history-item__card {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--chat-border));
  background: color-mix(in srgb, var(--accent) 4%, var(--chat-panel));
}

.read-history-item--low .upload-history-item__score {
  color: var(--accent);
}

.read-history-empty {
  text-align: center;
  padding: 2rem 1rem;
}

.upload-history-title {
  margin: 0 0 0.35rem;
  font-size: 1.0625rem;
  font-weight: 700;
}

.upload-history-note {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.upload-history-trends {
  margin-bottom: 0.85rem;
  padding: 0.85rem 0.95rem;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--accent) 6%, var(--input-bg));
  border: 1px solid var(--input-border);
}

.upload-history-trends[hidden] { display: none; }

.upload-history-trends__title {
  margin: 0 0 0.45rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--title);
}

.upload-history-trends__label {
  margin: 0 0 0.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--subtitle);
}

.upload-history-trends__recent {
  margin: 0 0 0.55rem;
}

.upload-trend-lines {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.upload-trend-lines__empty {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.upload-trend-line {
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.5;
}

.upload-trend-line--up { color: #15803d; }
.upload-trend-line--down { color: #dc2626; }
.upload-trend-line--flat { color: var(--subtitle); }

html.dark .upload-trend-line--up { color: #4ade80; }
html.dark .upload-trend-line--down { color: #f87171; }

.upload-history-trends__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--subtitle);
}

.upload-history-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.upload-history-empty {
  padding: 1rem;
  text-align: center;
  color: var(--subtitle);
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  border: 1px dashed var(--input-border);
}

.upload-weak-spots-wrap {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--input-border);
}

.upload-weak-spots-wrap[hidden] { display: none; }

.upload-weak-spots-list {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--title);
  line-height: 1.5;
}

.upload-history-item__card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.875rem 1rem;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
}

.upload-history-item.is-expanded .upload-history-item__card {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.upload-history-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.upload-history-item__time {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--subtitle);
}

.upload-history-item__score {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent);
}

.upload-history-item__dims {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--title);
  line-height: 1.45;
}

.upload-history-item__toggle {
  align-self: flex-start;
  margin-top: 0.15rem;
}

.upload-history-item__detail {
  padding: 0.85rem 1rem 1rem;
  border: 1px solid var(--input-border);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: color-mix(in srgb, var(--accent) 4%, var(--input-bg));
}

.upload-history-item__detail[hidden] { display: none; }

.upload-history-detail__inner {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.upload-history-detail__score {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--accent);
}

.upload-history-detail__level {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--title);
}

.upload-history-detail__dims,
.upload-history-detail__problems,
.upload-history-detail__suggestions,
.upload-history-detail__focus {
  list-style: none;
  margin: 0.2rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--title);
}

.upload-history-detail__problems {
  list-style: decimal;
  padding-left: 1.25rem;
}

.upload-history-detail__heard {
  margin: 0.15rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--title);
  word-break: break-word;
}

.upload-history-item__btn {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.875rem 1rem;
  text-align: left;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  cursor: pointer;
  font-family: inherit;
  color: inherit;
  transition: border-color 0.15s, background 0.15s;
}

.upload-history-item__btn:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--input-bg));
}

.upload-history-item__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.upload-history-item__score {
  font-weight: 800;
  color: var(--accent);
  white-space: nowrap;
}

.upload-history-item__summary {
  font-size: 0.8125rem;
  color: var(--subtitle);
  line-height: 1.45;
}

.upload-history-detail {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--radius);
  background: var(--chat-panel);
  border: 1px solid var(--input-border);
}

.upload-history-detail[hidden] {
  display: none;
}

.upload-history-detail__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.upload-history-detail__head h3 {
  margin: 0;
  font-size: 1rem;
}

.upload-error-rate {
  margin: 0;
  text-align: center;
  font-size: 0.875rem;
  color: var(--subtitle);
}

.upload-pron-stats {
  padding: 0.75rem 0.875rem;
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
}

.upload-pron-stats__list {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem 0.75rem;
  font-size: 0.875rem;
}

.upload-discovered-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.upload-discovered-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.upload-discovered-item {
  padding: 0.75rem 0.875rem;
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  font-size: 0.875rem;
  line-height: 1.55;
}

.upload-discovered-item p {
  margin: 0 0 0.35rem;
}

.upload-discovered-item p:last-child {
  margin-bottom: 0;
}

.upload-focus-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.upload-focus-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.upload-focus-list li {
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 12%, var(--input-bg));
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--input-border));
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
}

.word-card__main--clickable {
  cursor: pointer;
  flex: 1;
  min-width: 0;
}

.word-card__main--clickable:hover .word-card__french {
  color: var(--accent);
}

.word-detail-back {
  margin: 0 0 1rem;
}

.word-detail-back a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.word-detail-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  background: var(--chat-panel);
  border: 1px solid var(--input-border);
  box-shadow: var(--shadow-card);
}

.word-detail-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.word-detail-french {
  margin: 0;
  font-size: clamp(1.75rem, 7vw, 2.25rem);
  text-align: center;
}

.word-detail-chinese {
  margin: 0;
  font-size: 1.125rem;
  text-align: center;
  color: var(--subtitle);
}

.word-detail-example__fr {
  margin: 0;
  font-size: 1rem;
  text-align: center;
  font-weight: 600;
}

.word-detail-example__cn {
  margin: 0.35rem 0 0;
  font-size: 0.9375rem;
  text-align: center;
  color: var(--subtitle);
}

.word-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.word-detail-status {
  margin: 0;
  text-align: center;
  font-size: 0.875rem;
  color: var(--accent);
}

.grammar-result--structured .grammar-result__block {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
}

.grammar-result__label {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--subtitle);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.grammar-result__value {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.55;
  word-break: break-word;
}

.grammar-result__value--corrected {
  color: var(--accent);
  font-weight: 600;
}

.grammar-result__errors {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.875rem;
  line-height: 1.55;
}

/* ── 智能学习报告 ── */
.home-dashboard__panel--report {
  margin-bottom: 1rem;
}

.home-dashboard__report-link {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}

.home-dashboard__report-link:hover {
  text-decoration: underline;
}

.learning-report__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

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

.learning-report__metric {
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--chat-border);
  background: var(--badge-bg);
}

.learning-report__metric-label {
  display: block;
  font-size: 0.75rem;
  color: var(--subtitle);
  margin-bottom: 0.2rem;
}

.learning-report__metric-value {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.25;
}

.learning-report__summary {
  margin: 0.85rem 0 0;
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--chat-border);
  background: var(--input-bg);
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--title);
}

.learning-report__summary--page {
  margin-top: 1rem;
}

.learning-report__detail-btn {
  display: inline-flex;
  margin-top: 0.85rem;
  width: auto;
  padding: 0.55rem 1.1rem;
  font-size: 0.875rem;
}

.learning-report__empty,
.learning-report__loading {
  margin: 0;
  font-size: 0.875rem;
  color: var(--subtitle);
  line-height: 1.55;
}

.learning-report__section {
  margin-bottom: 1.25rem;
  padding: 1rem;
  border: 1px solid var(--chat-border);
  border-radius: var(--radius-lg);
  background: var(--surface, var(--chat-bg));
}

.learning-report__section-title {
  margin: 0 0 0.85rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}

.learning-report__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

@media (min-width: 768px) {
  .learning-report__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.learning-report__detail-grid .home-study-stats__card {
  border: none;
  border-radius: 0;
  box-shadow: none;
  padding: 0;
}

.learning-report__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.learning-report__list-item {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--chat-border);
}

.learning-report__list-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.learning-report__list-main {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem 0.75rem;
}

.learning-report__list-main strong {
  font-size: 0.9375rem;
  color: var(--accent);
}

.learning-report__list-meta {
  font-size: 0.75rem;
  color: var(--subtitle);
}

.learning-report__list-text {
  margin: 0.35rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--title);
}

.learning-report__list-empty {
  padding: 0.5rem 0;
  font-size: 0.875rem;
  color: var(--subtitle);
}

.learning-report__advice {
  list-style: none;
  margin: 0;
  padding: 0;
}

.learning-report__advice-item {
  position: relative;
  padding: 0.65rem 0 0.65rem 1rem;
  border-bottom: 1px solid var(--chat-border);
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--title);
}

.learning-report__advice-item::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.learning-report__advice-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.learning-report__trend {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}

.learning-report__trend-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--chat-border);
  font-size: 0.875rem;
}

.learning-report__trend-date {
  color: var(--subtitle);
}

.learning-report__trend-count {
  font-weight: 600;
  color: var(--title);
}

.learning-report__section--advice {
  border-color: var(--accent);
  background: var(--badge-bg);
}

/* ── 学习报告页（用户版） ── */

.lr-page {
  max-width: 1200px;
  margin: 0 auto;
}

.lr-page__content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.lr-card {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

html.dark .lr-card {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.24);
}

.lr-card--advice {
  border-color: var(--accent);
  background: var(--badge-bg);
}

.lr-card__title {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}

.lr-summary {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .lr-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .lr-summary {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.lr-summary__item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 12px;
  border-radius: 12px;
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
}

.lr-summary__icon {
  font-size: 1.35rem;
  line-height: 1;
}

.lr-summary__label {
  display: block;
  font-size: 0.75rem;
  color: var(--subtitle);
  margin-bottom: 0.15rem;
}

.lr-summary__value {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--title);
  line-height: 1.35;
}

.lr-chart-wrap {
  position: relative;
  height: 240px;
  width: 100%;
}

@media (min-width: 768px) {
  .lr-chart-wrap {
    height: 280px;
  }
}

.lr-composition {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.lr-chart-wrap--pie {
  height: 260px;
  max-width: 420px;
  width: 100%;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .lr-composition {
    flex-direction: row;
    align-items: center;
    gap: 1.5rem;
  }

  .lr-chart-wrap--pie {
    flex: 1 1 280px;
    max-width: 360px;
  }

  .lr-composition__stats {
    flex: 1 1 240px;
    margin-top: 0;
  }
}

.lr-composition__empty {
  margin: 0;
  padding: 1rem 0;
  color: var(--subtitle);
  font-size: 0.875rem;
  text-align: center;
}

.lr-stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}

.lr-stat-pill {
  flex: 1 1 8rem;
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
}

.lr-stat-pill__label {
  display: block;
  font-size: 0.75rem;
  color: var(--subtitle);
}

.lr-stat-pill__value {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
  font-variant-numeric: tabular-nums;
}

.lr-calendar-summary {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .lr-calendar-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .lr-calendar-summary {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.lr-calendar-summary__item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
}

.lr-calendar-summary__icon {
  font-size: 1.15rem;
  line-height: 1;
}

.lr-calendar-summary__label {
  display: block;
  font-size: 0.75rem;
  color: var(--subtitle);
  margin-bottom: 0.1rem;
}

.lr-calendar-summary__value {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--title);
}

.lr-calendar-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.85rem;
  margin-bottom: 0.85rem;
  font-size: 0.75rem;
  color: var(--subtitle);
}

.lr-cal-swatch {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  flex-shrink: 0;
}

.lr-cal-swatch--0 {
  background: #e5e7eb;
}

.lr-cal-swatch--1 {
  background: #bbf7d0;
}

.lr-cal-swatch--2 {
  background: #4ade80;
}

.lr-cal-swatch--3 {
  background: #15803d;
}

.calendar-wrapper,
.lr-calendar {
  display: block;
  width: 100%;
  max-width: none;
  min-width: 0;
  box-sizing: border-box;
}

.calendar-grid,
.lr-calendar__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  width: 100%;
  gap: 8px;
}

/* Override legacy fixed-column calendar rules (repeat(7, 42px) + justify-content: center) */
.lr-page .lr-card .calendar-wrapper .lr-calendar__grid,
.lr-page .lr-card > .lr-calendar > .lr-calendar__grid {
  grid-template-columns: repeat(7, minmax(0, 1fr));
  width: 100%;
  justify-content: stretch;
  max-width: none;
}

.lr-page .lr-card .lr-calendar__weekdays {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  width: 100%;
  justify-content: stretch;
  max-width: none;
  gap: 8px;
  margin-bottom: 8px;
}

.lr-page .lr-card .lr-calendar__weekday {
  width: auto;
  min-width: 0;
}

.lr-calendar__weekday {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--subtitle);
  font-weight: 600;
  min-width: 0;
}

.lr-cal-day {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 1;
  min-width: 0;
  border-radius: 8px;
  cursor: default;
  box-sizing: border-box;
  font-size: 0.875rem;
  font-weight: 600;
  color: #374151;
  line-height: 1;
}

.lr-cal-day--pad {
  background: transparent;
  pointer-events: none;
  visibility: hidden;
}

.lr-cal-day--0 {
  background: #e5e7eb;
}

.lr-cal-day--1 {
  background: #bbf7d0;
}

.lr-cal-day--2 {
  background: #4ade80;
}

.lr-cal-day--3 {
  background: #15803d;
  color: #ffffff;
}

.lr-cal-day:hover {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.lr-recent-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.lr-recent-item {
  border-bottom: 1px solid var(--chat-border);
}

.lr-recent-item:last-child {
  border-bottom: none;
}

.lr-recent-item__btn {
  display: grid;
  grid-template-columns: 6.5rem 1fr auto;
  gap: 0.65rem;
  align-items: center;
  width: 100%;
  padding: 0.85rem 0;
  border: none;
  background: transparent;
  text-align: left;
  cursor: pointer;
  color: inherit;
  font: inherit;
}

@media (max-width: 520px) {
  .lr-recent-item__btn {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
  }

  .lr-recent-item__date {
    grid-column: 1 / -1;
  }
}

.lr-recent-item__btn:hover {
  opacity: 0.85;
}

.lr-recent-item__date {
  font-size: 0.8125rem;
  color: var(--subtitle);
  font-variant-numeric: tabular-nums;
}

.lr-recent-item__sentence {
  font-size: 0.875rem;
  color: var(--title);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lr-recent-item__score {
  font-size: 0.9375rem;
  color: var(--accent);
  white-space: nowrap;
}

.lr-recent-item__detail {
  padding: 0 0 0.85rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--subtitle);
}

.lr-recent-item__detail p {
  margin: 0.35rem 0;
}

.lr-recent-empty {
  padding: 1rem 0;
  color: var(--subtitle);
  font-size: 0.875rem;
}

.lr-advice {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--title);
}

/* ── 数据同步页 ── */

.data-sync__hint {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--subtitle);
}

.data-sync__import-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.data-sync__status {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  color: #d92d20;
}

.data-sync__result {
  margin-top: 1.25rem;
}

.data-sync__result-title {
  margin: 0 0 0.75rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--title);
}

.data-sync__cloud-note {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.data-sync__cloud-note--ok {
  color: #10b981;
}

.data-sync__cloud-note--error {
  color: #d92d20;
  font-weight: 600;
}

.data-sync__cloud-verify {
  margin-top: 0.5rem;
  padding: 0.75rem;
  border-radius: 10px;
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
}

.data-sync__cloud-verify-title {
  margin: 0 0 0.4rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--title);
}

.data-sync__cloud-verify-list {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
  font-variant-numeric: tabular-nums;
}

/* ── 动词变位页 ── */

.conj-panel {
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

html.dark .conj-panel {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.24);
}

.conj-search-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--title);
  margin-bottom: 0.5rem;
}

.conj-search-row {
  display: flex;
  gap: 0.75rem;
  align-items: stretch;
  margin-bottom: 0.75rem;
}

.conj-search-row .conj-search-input {
  flex: 1;
  margin-bottom: 0;
}

.conj-practice-mode {
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  color: var(--subtitle);
}

.conj-tense-filter {
  margin: 0 0 1rem;
}

.conj-tense-filter__title {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--title);
}

.conj-tense-filter__options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.conj-tense-filter__option {
  border: 1px solid var(--chat-border);
  background: var(--chat-panel);
  color: var(--subtitle);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.conj-tense-filter__option:hover {
  border-color: var(--accent);
  color: var(--title);
}

.conj-tense-filter__option--active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--badge-bg);
}

.conj-practice-method {
  margin-bottom: 0.85rem;
}

.conj-practice-method__title {
  margin: 0 0 0.45rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
  font-weight: 600;
}

.conj-practice-method__options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.conj-practice-method__option {
  border: 1px solid var(--chat-border);
  background: var(--badge-bg);
  color: var(--title);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font-size: 0.8125rem;
  cursor: pointer;
}

.conj-practice-method__option:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.conj-practice-method__option--active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.conj-practice-method__option:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.conj-practice-method__heading {
  margin: 0 0 0.65rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--title);
}

.conj-dictation-meta {
  margin-bottom: 0.75rem;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
}

.conj-dictation-meta p {
  margin: 0.2rem 0;
  font-size: 0.875rem;
  color: var(--title);
}

.conj-dictation-meta__label {
  color: var(--subtitle);
}

.conj-dictation-prompt {
  margin: 0 0 0.55rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--title);
}

.conj-listening-play {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

.conj-listening-play__hint {
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-radio-options {
  display: grid;
  gap: 0.45rem;
}

.conj-radio-option {
  text-align: left;
  border: 1px solid var(--chat-border);
  background: var(--badge-bg);
  color: var(--title);
  border-radius: 10px;
  padding: 0.55rem 0.75rem;
  font-size: 0.875rem;
  cursor: pointer;
}

.conj-radio-option:hover:not(:disabled) {
  border-color: var(--accent);
}

.conj-tense-judge__label {
  margin: 0 0 0.35rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-tense-judge__sentence {
  margin: 0 0 0.85rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--title);
}

.conj-options--listening .conj-option--listening {
  text-align: left;
}

.conj-practice-context {
  margin: 0 0 0.75rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--chat-border);
  border-radius: 10px;
  background: var(--badge-bg);
}

.conj-practice-context__line {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--title);
  font-weight: 600;
}

.conj-practice-context__line + .conj-practice-context__line {
  margin-top: 0.25rem;
}

.conj-practice-tense-hint {
  margin-top: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px dashed var(--chat-border);
}

.conj-practice-tense-hint__inner {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.conj-practice-tense-hint__heading {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--title);
}

.conj-practice-tense-hint__name {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--title);
}

.conj-practice-tense-hint__rule,
.conj-practice-tense-hint__label {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
  line-height: 1.45;
}

.conj-practice-tense-hint__examples {
  margin: 0;
  padding-left: 0;
  list-style: none;
  font-size: 0.8125rem;
  color: var(--title);
  line-height: 1.5;
}

.conj-practice-tense-hint__examples li {
  margin: 0.1rem 0;
  padding-left: 0;
}

.conj-practice-tense-hint__examples li::before {
  content: "• ";
  color: var(--subtitle);
}

.conj-practice-tense-hint__usage-list {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.conj-practice-tense-hint__usage-list li {
  margin: 0.1rem 0;
}

.conj-practice-unavailable {
  padding: 1rem;
  border: 1px dashed var(--chat-border);
  border-radius: 12px;
  background: var(--badge-bg);
  text-align: center;
}

.conj-practice-unavailable__msg {
  margin: 0.75rem 0 0.35rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--title);
}

.conj-practice-unavailable__hint {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-session-summary {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid var(--chat-border);
  border-radius: 12px;
  background: var(--input-bg);
}

.conj-session-summary__title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.conj-session-summary__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.conj-session-summary__review {
  margin: 0;
  padding-left: 1.1rem;
}

.conj-session-summary__review li {
  margin-bottom: 0.75rem;
}

.conj-question__tense {
  margin: 0 0 0.35rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-search-input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--chat-border);
  border-radius: 12px;
  background: var(--input-bg);
  color: var(--title);
  margin-bottom: 0.75rem;
}

.conj-search-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.conj-status {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 900px) {
  .conj-layout--active {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 440px);
    align-items: start;
  }
}

.conj-results {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.conj-card {
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
  border-radius: 14px;
  padding: 16px;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.conj-card:hover {
  border-color: var(--accent);
}

.conj-card--active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.12);
}

.conj-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.conj-card__verb {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--title);
}

.conj-card__level {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--chat-panel);
  border: 1px solid var(--chat-border);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
}

.conj-card__zh,
.conj-card__example {
  margin: 0.35rem 0;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--subtitle);
}

.conj-card__example {
  color: var(--title);
}

.conj-card__example-zh {
  color: var(--subtitle);
  font-size: 0.8125rem;
}

.conj-empty {
  margin: 0;
  padding: 2rem 1rem;
  text-align: center;
  color: var(--subtitle);
  font-size: 0.9375rem;
  background: var(--badge-bg);
  border-radius: 12px;
  border: 1px dashed var(--chat-border);
}

.conj-detail__inner {
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
  border-radius: 14px;
  padding: 16px;
}

.conj-detail__title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}

.conj-tense-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.conj-tense-tab {
  border: 1px solid var(--chat-border);
  background: var(--chat-panel);
  color: var(--subtitle);
  border-radius: 999px;
  padding: 0.3rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.conj-tense-tab--muted {
  opacity: 0.65;
}

.conj-tense-tab:hover {
  border-color: var(--accent);
  color: var(--title);
}

.conj-tense-empty {
  margin-top: 0.5rem;
}

.conj-tense-tab--active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--badge-bg);
}

.conj-tense-tab:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.conj-form-row {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.conj-form-phrase {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--title);
}

.conj-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.conj-form-status {
  margin: 0;
  font-size: 0.75rem;
  color: var(--subtitle);
}

.conj-form-result {
  margin-top: 0.25rem;
}

.conj-table--forms td {
  vertical-align: top;
}

.conj-form-row__label {
  white-space: nowrap;
  font-size: 0.8125rem;
}

.conj-detail__meta {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-table-wrap {
  overflow-x: auto;
}

.conj-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.conj-table th,
.conj-table td {
  padding: 0.65rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--chat-border);
}

.conj-table thead th {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--subtitle);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.conj-table tbody th {
  font-weight: 600;
  color: var(--title);
  width: 38%;
}

.conj-table tbody td {
  color: var(--title);
  font-weight: 500;
}

.conj-table tbody tr:last-child th,
.conj-table tbody tr:last-child td {
  border-bottom: none;
}

/* ── 动词练习 V2 ── */
.conj-practice-panel {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--chat-border);
}

.conj-practice-header {
  margin-bottom: 1.25rem;
}

.conj-practice-title {
  margin: 0 0 0.35rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--title);
}

.conj-practice-desc {
  margin: 0;
  font-size: 0.875rem;
  color: var(--subtitle);
}

.conj-daily-card,
.conj-free-card {
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 1rem;
}

.conj-daily-card__title,
.conj-free-card__title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}

.conj-free-card__current {
  margin: 0 0 0.65rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--accent);
}

.conj-daily-card__current {
  margin: 0 0 0.65rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--accent);
}

.conj-daily-card__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

.conj-daily-card__stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.conj-daily-card__label {
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-daily-card__value {
  font-size: 1.125rem;
  color: var(--title);
}

.conj-daily-card__done {
  margin: 0 0 0.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--accent);
}

.conj-mode-switch {
  border: none;
  margin: 0 0 0.85rem;
  padding: 0;
}

.conj-mode-switch__legend {
  font-size: 0.8125rem;
  color: var(--subtitle);
  margin-bottom: 0.5rem;
}

.conj-mode-option {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-right: 1rem;
  font-size: 0.875rem;
  color: var(--title);
  cursor: pointer;
}

.conj-session-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin: 0.85rem 0 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-session-stats strong {
  color: var(--title);
}

.conj-tense-stats-panel,
.conj-mistake-book {
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 1rem;
}

.conj-tense-stats-panel__title,
.conj-mistake-book__title {
  margin: 0 0 0.65rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}

.conj-mistake-book__header {
  margin-bottom: 0.75rem;
}

.conj-mistake-analysis {
  margin-bottom: 0.75rem;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid var(--chat-border);
}

.conj-mistake-analysis__title {
  margin: 0 0 0.45rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--title);
}

.conj-mistake-analysis__list {
  margin: 0 0 0.45rem;
  padding: 0;
  list-style: none;
}

.conj-mistake-analysis__item {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--title);
}

.conj-mistake-analysis__empty {
  margin: 0 0 0.45rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-mistake-analysis__weakest {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--title);
}

.conj-mistake-analysis__weakest-label {
  color: var(--subtitle);
}

.conj-mistake-analysis__weakest-value {
  color: var(--accent);
  font-weight: 700;
}

.conj-mistake-book__filters {
  border: none;
  margin: 0 0 0.65rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
}

.conj-mistake-book__practice-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.conj-mistake-book__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.conj-mistake-book__filters-legend {
  width: 100%;
  font-size: 0.8125rem;
  color: var(--subtitle);
  margin-bottom: 0.35rem;
}

.conj-mistake-book__filter {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  color: var(--title);
  cursor: pointer;
}

.conj-mistake-book__empty--filtered {
  color: var(--title);
  font-weight: 600;
}

.conj-mistake-book__summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.25rem;
  margin-bottom: 0.75rem;
  padding: 0;
  border-radius: 0;
  background: transparent;
}

.conj-mistake-book__summary-item {
  font-size: 0.875rem;
  color: var(--title);
}

.conj-mistake-book__summary-label {
  color: var(--subtitle);
}

.conj-mistake-book__summary-item strong {
  color: var(--accent);
}

.conj-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.conj-modal[hidden] {
  display: none;
}

.conj-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
}

.conj-modal__dialog {
  position: relative;
  width: min(100%, 320px);
  background: var(--badge-bg);
  border: 1px solid var(--chat-border);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.18);
}

.conj-modal__text {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  color: var(--title);
}

.conj-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.conj-tense-stats-panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.conj-tense-stats-panel__item {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  font-size: 0.9375rem;
  color: var(--title);
}

.conj-tense-stats-panel__label {
  color: var(--subtitle);
}

.conj-tense-stats-panel__value {
  font-weight: 600;
}

.conj-tense-stats-panel__value--high {
  color: #16a34a;
}

.conj-tense-stats-panel__value--mid {
  color: #ea580c;
}

.conj-tense-stats-panel__value--low {
  color: #dc2626;
}

.conj-tense-stats-panel__value--none {
  color: var(--subtitle);
}

.conj-mistake-book__btn {
  font-size: 0.875rem;
}

.conj-mistake-book__btn--stubborn {
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
  border: 1px solid #fdba74;
  color: #c2410c;
  font-weight: 700;
  box-shadow: 0 1px 0 rgba(234, 88, 12, 0.12);
}

.conj-mistake-book__btn--stubborn:hover:not(:disabled):not(.is-disabled) {
  background: linear-gradient(135deg, #ffedd5 0%, #fed7aa 100%);
  border-color: #fb923c;
  color: #9a3412;
}

.conj-mistake-book__btn--stubborn.is-disabled,
.conj-mistake-book__btn--stubborn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.conj-stubborn-banner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem 1rem;
  align-items: start;
  margin: 1rem 0 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid #fdba74;
  background: linear-gradient(135deg, rgba(255, 237, 213, 0.95) 0%, rgba(254, 243, 199, 0.92) 100%);
}

.conj-stubborn-banner__icon {
  font-size: 1.5rem;
  line-height: 1;
  margin-top: 0.1rem;
}

.conj-stubborn-banner__title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  color: #9a3412;
}

.conj-stubborn-banner__progress {
  margin: 0 0 0.35rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: #c2410c;
}

.conj-stubborn-banner__hint {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: #9a3412;
}

.conj-stubborn-banner__exit {
  white-space: nowrap;
  align-self: start;
}

.conj-modal__dialog--stubborn {
  text-align: center;
}

.conj-modal__text--celebrate {
  font-size: 1.0625rem;
  font-weight: 700;
}

.conj-modal__subtext {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  color: var(--subtitle);
}

.conj-mistake-book__btn--danger {
  margin-left: auto;
}

.conj-mistake-book--focused {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.conj-mistake-book__list {
  display: grid;
  gap: 0.65rem;
}

.conj-mistake-book__item {
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--chat-border);
  border-radius: 10px;
  background: var(--bg, #fff);
}

.conj-mistake-book__verb {
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}

.conj-mistake-book__meta {
  margin-top: 0.2rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-mistake-book__count {
  margin-top: 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.conj-mistake-book__btn.is-disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.conj-mistake-book__status--unmastered {
  color: #dc2626;
}

.conj-mistake-book__status--consolidating,
.conj-mistake-book__count--mild {
  color: #ca8a04;
}

.conj-mistake-book__status--mastered {
  color: #16a34a;
}

.conj-mistake-book__count--medium {
  color: #ea580c;
}

.conj-mistake-book__count--severe {
  color: #dc2626;
}

.conj-mistake-book__status {
  white-space: nowrap;
  font-weight: 600;
}

.conj-mistake-book__table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.conj-mistake-book__table th,
.conj-mistake-book__table td {
  padding: 0.45rem 0.5rem;
  text-align: left;
  border-bottom: 1px solid var(--chat-border);
  vertical-align: top;
}

.conj-mistake-book__table th {
  font-weight: 600;
  color: var(--subtitle);
  white-space: nowrap;
}

.conj-mistake-book__table td {
  color: var(--title);
}

.conj-mistake-row-delete {
  white-space: nowrap;
}

.conj-mistake-practice-done {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 10px;
  background: rgba(22, 163, 74, 0.08);
  color: #15803d;
  font-weight: 600;
  text-align: center;
}

.conj-mistake-book__empty {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--subtitle);
}

.conj-mistake-book__table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.conj-question-area {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--chat-border);
}

.conj-question__verb {
  margin: 0 0 0.35rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-question__sentence {
  margin: 0 0 1rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--title);
  line-height: 1.5;
}

.conj-options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

@media (min-width: 480px) {
  .conj-options {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.conj-option {
  text-align: left;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--chat-border);
  border-radius: 10px;
  background: var(--chat-panel);
  color: var(--title);
  font-size: 0.9375rem;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.conj-option:hover:not(:disabled) {
  border-color: var(--accent);
}

.conj-option:disabled {
  opacity: 0.65;
  cursor: default;
}

.conj-fill {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.conj-fill-input {
  flex: 1 1 180px;
  min-width: 0;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--chat-border);
  border-radius: 10px;
  background: var(--chat-panel);
  color: var(--title);
  font-size: 0.9375rem;
}

.conj-fill-input:focus {
  outline: none;
  border-color: var(--accent);
}

.conj-fill-submit {
  flex: 0 0 auto;
}

.conj-feedback {
  margin-top: 0.85rem;
}

.conj-feedback__result {
  margin: 0 0 0.35rem;
  font-size: 0.9375rem;
  font-weight: 600;
}

.conj-feedback__result--ok {
  color: #15803d;
}

html.dark .conj-feedback__result--ok {
  color: #4ade80;
}

.conj-feedback__result--bad {
  color: var(--accent);
}

.conj-feedback__explain {
  margin: 0 0 0.85rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-feedback__full {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--title);
}

.conj-feedback__zh {
  margin: 0 0 0.35rem;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--subtitle);
}

.conj-feedback__compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin: 0.65rem 0 0.75rem;
}

@media (max-width: 520px) {
  .conj-feedback__compare {
    grid-template-columns: 1fr;
  }
}

.conj-feedback__card {
  border-radius: 12px;
  border: 1.5px solid var(--chat-border);
  padding: 0.65rem 0.75rem;
  background: var(--badge-bg);
}

.conj-feedback__card-title {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--subtitle);
  letter-spacing: 0.02em;
}

.conj-feedback__card-text {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--title);
  word-break: break-word;
}

.conj-feedback__card--bad {
  border-color: #dc2626;
  background: rgba(220, 38, 38, 0.08);
}

.conj-feedback__card--bad .conj-feedback__card-text {
  color: #dc2626;
}

html.dark .conj-feedback__card--bad {
  border-color: #f87171;
  background: rgba(248, 113, 113, 0.12);
}

html.dark .conj-feedback__card--bad .conj-feedback__card-text {
  color: #f87171;
}

.conj-feedback__card--ok {
  border-color: #15803d;
  background: rgba(21, 128, 61, 0.08);
}

.conj-feedback__card--ok .conj-feedback__card-text {
  color: #15803d;
}

html.dark .conj-feedback__card--ok {
  border-color: #4ade80;
  background: rgba(74, 222, 128, 0.1);
}

html.dark .conj-feedback__card--ok .conj-feedback__card-text {
  color: #4ade80;
}

.conj-feedback__hint {
  margin: 0.75rem 0;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  border: 1px dashed var(--chat-border);
  background: var(--badge-bg);
}

.conj-feedback__hint-title {
  margin: 0 0 0.35rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--title);
}

.conj-feedback__hint-text {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--subtitle);
}

.conj-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
  align-items: center;
}

.conj-feedback__actions .conj-feedback__next {
  margin-top: 0;
}

.conj-feedback__answer-label {
  margin: 0.5rem 0 0.25rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-feedback__answer-label:first-of-type {
  margin-top: 0.35rem;
}

.conj-feedback__answer {
  margin: 0 0 0.15rem;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.45;
}

.conj-feedback__answer--ok {
  color: #15803d;
}

html.dark .conj-feedback__answer--ok {
  color: #4ade80;
}

.conj-feedback__answer--bad {
  color: #dc2626;
}

html.dark .conj-feedback__answer--bad {
  color: #f87171;
}

.conj-option--correct,
.conj-radio-option.conj-option--correct {
  border-color: #15803d;
  background: rgba(21, 128, 61, 0.12);
  color: #15803d;
}

html.dark .conj-option--correct,
html.dark .conj-radio-option.conj-option--correct {
  border-color: #4ade80;
  background: rgba(74, 222, 128, 0.12);
  color: #4ade80;
}

.conj-option--user-wrong,
.conj-radio-option.conj-option--user-wrong {
  border-color: #dc2626;
  background: rgba(220, 38, 38, 0.1);
  color: #dc2626;
}

html.dark .conj-option--user-wrong,
html.dark .conj-radio-option.conj-option--user-wrong {
  border-color: #f87171;
  background: rgba(248, 113, 113, 0.12);
  color: #f87171;
}

.conj-fill-input.conj-fill-input--correct {
  border-color: #15803d;
  color: #15803d;
}

.conj-fill-input.conj-fill-input--wrong {
  border-color: #dc2626;
  color: #dc2626;
}

.conj-feedback__next {
  margin-top: 0.85rem;
}

.conj-pron {
  margin: 0.85rem 0;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--chat-border);
}

.conj-pron__heading {
  margin: 0 0 0.65rem;
}

.conj-pron__panel {
  padding: 0;
}

.conj-pron__dimensions {
  margin: 0.5rem 0 0.85rem;
}

.conj-pron__focus {
  margin: 0;
}

.conj-pron__retry-hint {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
}

.conj-pron__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.conj-pron__status {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-pron__score-label {
  margin: 0 0 0.15rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.conj-pron__score {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}

.conj-pron__result {
  margin-top: 0.5rem;
}

.conj-pron__failure {
  margin: 0.35rem 0 0.5rem;
  color: #c0392b;
  font-weight: 600;
}

.conj-pron-debug {
  margin: 0.35rem 0 0.75rem;
  padding: 0.5rem 0.65rem;
  background: rgba(0, 0, 0, 0.04);
  border-radius: 6px;
  font-size: 0.85rem;
  line-height: 1.45;
}

.conj-pron-debug dt {
  font-weight: 600;
  color: var(--text-muted, #666);
  margin-top: 0.25rem;
}

.conj-pron-debug dt:first-child {
  margin-top: 0;
}

.conj-pron-debug dd {
  margin: 0.1rem 0 0;
}

.conj-pron .is-recording {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* V3 verb mastery */
.conj-mastery-panel {
  margin-bottom: 1.5rem;
  padding: 1.25rem;
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 12px;
  background: var(--surface, #fff);
}

html.dark .conj-mastery-panel {
  background: var(--surface, #1e293b);
  border-color: rgba(148, 163, 184, 0.2);
}

.conj-mastery-header {
  margin-bottom: 1rem;
}

.conj-mastery-title {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
}

.conj-mastery-desc {
  margin: 0;
  color: var(--text-muted, #64748b);
  font-size: 0.9rem;
}

.conj-mastery-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.conj-mastery-stat {
  padding: 0.75rem;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.06);
  text-align: center;
}

.conj-mastery-stat span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted, #64748b);
}

.conj-mastery-stat strong {
  display: block;
  margin-top: 0.25rem;
  font-size: 1.35rem;
}

.conj-mastery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 720px) {
  .conj-mastery-summary,
  .conj-mastery-grid {
    grid-template-columns: 1fr;
  }
}

.conj-mastery-card {
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid var(--border, #e2e8f0);
}

.conj-mastery-card__title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.conj-mastery-list,
.conj-mastery-recent {
  list-style: none;
  margin: 0;
  padding: 0;
}

.conj-mastery-list__item,
.conj-mastery-recent__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

.conj-mastery-list__item:last-child,
.conj-mastery-recent__item:last-child {
  border-bottom: none;
}

.conj-mastery-list__rank {
  width: 1.25rem;
  color: var(--text-muted, #64748b);
  font-weight: 600;
}

.conj-mastery-list__verb,
.conj-mastery-recent__item strong {
  flex: 1;
}

.conj-mastery-list__pct {
  font-weight: 700;
}

.conj-mastery-badge {
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
}

.conj-mastery-badge--mastered { background: #dcfce7; color: #166534; }
.conj-mastery-badge--fluent { background: #dbeafe; color: #1d4ed8; }
.conj-mastery-badge--practice { background: #fef3c7; color: #b45309; }
.conj-mastery-badge--focus { background: #fee2e2; color: #b91c1c; }

.conj-mastery-recent__item span {
  font-size: 0.82rem;
  color: var(--text-muted, #64748b);
}

.conj-mastery-empty {
  color: var(--text-muted, #64748b);
  font-size: 0.9rem;
}

.follow-verb-match {
  margin-top: 0.75rem;
}

.follow-verb-match__text {
  margin: 0.25rem 0 0;
  font-size: 0.95rem;
}

.review-verb-focus {
  margin-bottom: 1rem;
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid #fecaca;
  background: #fff7ed;
}

html.dark .review-verb-focus {
  background: rgba(127, 29, 29, 0.15);
  border-color: rgba(248, 113, 113, 0.35);
}

.review-verb-focus__title {
  margin: 0 0 0.25rem;
  font-weight: 700;
}

.review-verb-focus__desc {
  margin: 0 0 0.75rem;
  font-size: 0.88rem;
  color: var(--text-muted, #64748b);
}

.review-verb-focus__list {
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.review-verb-focus__item {
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: #fff;
  border: 1px solid #fdba74;
  font-size: 0.85rem;
}

.review-verb-focus__item span {
  margin-left: 0.35rem;
  color: #c2410c;
  font-size: 0.75rem;
}

.review-verb-focus__link {
  font-size: 0.9rem;
  font-weight: 600;
}

.lr-verb-mastery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1rem 0;
}

@media (max-width: 720px) {
  .lr-verb-mastery-grid {
    grid-template-columns: 1fr;
  }
}

.lr-verb-mastery__subtitle {
  margin: 0 0 0.65rem;
  font-size: 0.95rem;
}

.lr-verb-rank {
  list-style: none;
  margin: 0;
  padding: 0;
}

.lr-verb-rank__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

.lr-verb-rank__num {
  width: 1.25rem;
  color: var(--text-muted, #64748b);
}

.lr-verb-rank__verb {
  flex: 1;
}

.lr-verb-rank__empty {
  color: var(--text-muted, #64748b);
  font-size: 0.9rem;
}

/* ── 听力训练 V1 ── */

.listening-practice-record-debug-wrap {
  margin-top: 1rem;
}

.listening-practice-record-debug-details {
  border: 1px dashed var(--chat-border);
  border-radius: 10px;
  padding: 0.5rem 0.75rem;
  background: var(--card);
}

.listening-practice-record-debug-details__summary {
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--subtitle);
  font-weight: 600;
}

.listening-choice-header {
  margin-bottom: 0.75rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--chat-border);
}

.listening-choice-header__mode {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 700;
}

.listening-choice-header__filter {
  margin: 0;
  font-size: 0.9rem;
  color: var(--subtitle);
}

.listening-choice-progress {
  margin-bottom: 0.75rem;
}

.listening-choice-progress__index {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.listening-choice-progress__label {
  margin: 0.25rem 0;
  font-size: 0.85rem;
  color: var(--subtitle);
}

.listening-choice-progress__bar {
  height: 8px;
  border-radius: 999px;
  background: var(--badge-bg);
  overflow: hidden;
}

.listening-choice-progress__fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.2s ease;
}

.listening-choice-progress__pct {
  margin: 0.25rem 0 0;
  font-size: 0.8rem;
  color: var(--subtitle);
}

.listening-choice-meta {
  display: grid;
  gap: 0.15rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.listening-choice-meta p {
  margin: 0;
}

.listening-choice-nav {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.listening-choice-analysis {
  margin-top: 0.75rem;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  background: var(--badge-bg);
  font-size: 0.9rem;
}

.listening-choice-analysis__kw,
.listening-choice-analysis__tags {
  margin: 0.35rem 0 0;
  color: var(--subtitle);
}

.listening-choice-complete {
  text-align: center;
  padding: 1rem 0.5rem;
}

.listening-choice-complete__title {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.listening-choice-complete__stats {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  text-align: left;
  max-width: 16rem;
  margin-left: auto;
  margin-right: auto;
}

.listening-choice-complete__stats li {
  margin: 0.35rem 0;
}

.listening-choice-complete__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.listening-question--choice .listening-options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0.75rem 0;
}

.listening-question--choice .listening-option {
  width: 100%;
  box-sizing: border-box;
}

.listening-choice-feedback,
.listening-choice-complete {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.listening-choice-nav {
  flex-wrap: wrap;
}

@media (min-width: 640px) {
  .listening-question--choice .listening-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

.listening-practice-record-debug {
  border: 1px dashed var(--chat-border);
  border-radius: 10px;
  padding: 0.75rem;
  background: var(--badge-bg);
  font-size: 0.8rem;
  color: var(--subtitle);
}

.listening-practice-record-debug__title {
  margin: 0 0 0.45rem;
  font-size: 0.85rem;
  color: var(--text);
}

.listening-practice-record-debug__card p {
  margin: 0.15rem 0;
}

.listening-practice-record-debug__empty {
  margin: 0;
  font-size: 0.8rem;
  color: var(--subtitle);
}

.listening-filter-panel {
  margin: 0 0 1.25rem;
  padding: 1rem;
  border: 1px solid var(--chat-border);
  border-radius: 14px;
  background: var(--card);
  display: grid;
  gap: 1rem;
}

.listening-filter-group__title {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.listening-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.listening-filter-btn {
  border: 1px solid var(--chat-border);
  background: #fff;
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.listening-filter-btn:hover {
  border-color: var(--accent);
  background: #fff5f5;
}

.listening-filter-btn.is-active {
  border-color: var(--accent);
  background: #fff5f5;
  color: var(--accent);
  font-weight: 600;
}

.listening-filter-current {
  padding-top: 0.35rem;
  border-top: 1px solid var(--chat-border);
}

.listening-filter-current__label {
  margin: 0;
  font-size: 0.8rem;
  color: var(--subtitle);
}

.listening-filter-current__value {
  margin: 0.2rem 0 0.65rem;
  font-size: 1rem;
  font-weight: 700;
}

.listening-filter-empty {
  margin: 0 0 0.65rem;
  font-size: 0.85rem;
  color: #b45309;
}

.listening-start-btn {
  min-width: 8rem;
}

.listening-recommend-card {
  border: 1px solid var(--chat-border);
  border-radius: 14px;
  background: var(--card);
  padding: 1rem;
}

.listening-recommend-card__title {
  margin: 0 0 0.45rem;
  font-size: 1rem;
}

.listening-recommend-card__desc,
.listening-recommend-card__message,
.listening-recommend-card__suggest {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.listening-section {
  margin: 0 auto 1.75rem;
  max-width: 56rem;
}

.listening-section__title {
  margin: 0 0 0.85rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--title);
}

.listening-overview-grid,
.listening-modes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .listening-overview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .listening-overview-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .listening-modes-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.listening-stat-card,
.listening-mode-card,
.listening-ai-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1rem;
  border-radius: 14px;
  border: 1px solid var(--chat-border);
  background: var(--card);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

.listening-stat-card__icon,
.listening-mode-card__icon,
.listening-ai-card__icon {
  font-size: 1.25rem;
}

.listening-stat-card__label {
  font-size: 0.75rem;
  color: var(--subtitle);
}

.listening-stat-card__value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--title);
}

.listening-stat-card__hint {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.65rem;
  color: var(--subtitle);
}

.listening-stats-note {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.listening-overview-note {
  grid-column: 1 / -1;
  margin: 0 0 0.25rem;
  font-size: 0.75rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.listening-mistake-book__legend {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.listening-mistake-book__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  font-size: 0.8125rem;
  margin-bottom: 0.75rem;
}

.listening-mistake-book__metrics strong {
  margin-left: 0.25rem;
}

.listening-stats-dictation-detail h4 {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  font-weight: 700;
}

.listening-practice-record-debug__hints ul {
  margin: 0.25rem 0 0.5rem;
  padding-left: 1.25rem;
  font-size: 0.8125rem;
}

.listening-mode-card__title,
.listening-ai-card__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

.listening-mode-card__desc,
.listening-ai-card__desc {
  margin: 0;
  flex: 1;
  font-size: 0.8125rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.listening-mode-card__btn {
  align-self: flex-start;
}

.listening-practice-panel {
  margin: 0 auto 1.75rem;
  max-width: 56rem;
  padding: 1rem;
  border-radius: 14px;
  border: 1px solid var(--chat-border);
  background: var(--card);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}

.listening-practice-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.listening-practice-panel__title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
}

.listening-question__meta {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  color: var(--subtitle);
}

.listening-question__prompt,
.listening-question__statement {
  margin: 0.5rem 0;
  line-height: 1.5;
}

.listening-question__progress {
  margin: 0 0 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
}

.listening-textarea {
  width: 100%;
  min-height: 6.5rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--chat-border);
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  line-height: 1.5;
  resize: vertical;
  margin: 0.5rem 0 0.75rem;
}

.listening-dictation-token--correct-hl {
  background: rgba(34, 197, 94, 0.2);
  color: #166534;
  border-radius: 0.2rem;
  padding: 0 0.15rem;
}

.listening-dictation-header {
  margin-bottom: 0.75rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--chat-border);
}

.listening-dictation-header__mode {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 700;
}

.listening-dictation-header__filter {
  margin: 0;
  font-size: 0.9rem;
  color: var(--subtitle);
}

.listening-dictation-progress {
  margin-bottom: 0.75rem;
}

.listening-dictation-progress__index {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.listening-dictation-progress__bar {
  height: 0.5rem;
  background: var(--chat-border);
  border-radius: 999px;
  overflow: hidden;
  margin: 0.35rem 0;
}

.listening-dictation-progress__fill {
  height: 100%;
  background: var(--accent, #2563eb);
  border-radius: 999px;
}

.listening-dictation-progress__pct {
  margin: 0;
  font-size: 0.9rem;
}

.listening-dictation-meta {
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.listening-dictation-meta p {
  margin: 0.2rem 0;
}

.listening-dictation-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.listening-dictation-answer-block {
  margin: 0.75rem 0;
}

.listening-dictation-answer-block__label {
  margin: 0 0 0.35rem;
  font-weight: 600;
}

.listening-dictation-error-cards {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.listening-dictation-error-card {
  border: 1px solid var(--chat-border);
  border-radius: 0.5rem;
  padding: 0.65rem 0.75rem;
  background: var(--card-bg, #fff);
}

.listening-dictation-error-card__title {
  margin: 0 0 0.35rem;
  font-weight: 700;
}

.listening-dictation-error-card__line {
  margin: 0.2rem 0;
}

.listening-dictation-error-card__ok {
  color: #166534;
}

.listening-dictation-error-card__bad {
  color: #b91c1c;
}

.listening-dictation-error-card__hint {
  margin: 0.35rem 0 0;
  color: var(--subtitle);
}

.listening-dictation-complete {
  text-align: center;
  padding: 1rem 0.5rem;
  overflow-wrap: anywhere;
}

.listening-dictation-complete__title {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.listening-dictation-complete__stats {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  text-align: left;
  max-width: 16rem;
  margin-left: auto;
  margin-right: auto;
}

.listening-dictation-complete__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.listening-question--dictation .listening-textarea {
  width: 100%;
  box-sizing: border-box;
  margin: 0.75rem 0 0;
}

.listening-keyboard-hint {
  margin: 7px 0 0.75rem;
  font-size: 12.5px;
  color: var(--text-secondary, #666);
  line-height: 1.4;
}

.listening-keyboard-hint--dictation {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.2rem;
}

.listening-keyboard-hint__info-wrap {
  position: relative;
  display: inline-flex;
  vertical-align: middle;
}

.listening-keyboard-hint__info {
  border: none;
  background: transparent;
  color: var(--text-secondary, #666);
  cursor: pointer;
  padding: 0 0.1rem;
  font-size: 13px;
  line-height: 1;
  font-family: inherit;
}

.listening-keyboard-hint__info:hover,
.listening-keyboard-hint__info:focus-visible {
  color: var(--accent, #c41e3a);
  outline: none;
}

.listening-keyboard-hint__tooltip {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  width: 220px;
  max-width: min(220px, calc(100vw - 2rem));
  padding: 0.55rem 0.65rem;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  font-size: 12px;
  color: #333;
  z-index: 1200;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  text-align: left;
  pointer-events: none;
}

.listening-keyboard-hint__tooltip[hidden] {
  display: none !important;
}

.listening-keyboard-hint__tooltip-row strong {
  font-weight: 600;
}

.dictation-keyboard-onboarding {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.dictation-keyboard-onboarding__card {
  background: #fff;
  border-radius: 12px;
  padding: 1rem 1.25rem 1.1rem;
  max-width: 320px;
  width: 100%;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.dictation-keyboard-onboarding__title {
  margin: 0 0 0.65rem;
  font-size: 1rem;
  font-weight: 700;
}

.dictation-keyboard-onboarding__list {
  margin: 0 0 0.85rem;
  padding-left: 1.1rem;
  font-size: 0.92rem;
  color: #333;
}

.dictation-keyboard-onboarding__list li + li {
  margin-top: 0.35rem;
}

.dictation-keyboard-onboarding__dismiss {
  width: 100%;
}

.listening-practice-record-debug__errors {
  margin: 0.25rem 0 0;
  padding-left: 1.1rem;
}

.listening-dictation-score {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.listening-dictation-verdict {
  margin: 0 0 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
}

.listening-dictation-verdict--ok { color: #166534; }
.listening-dictation-verdict--partial { color: #a16207; }
.listening-dictation-verdict--bad { color: #b91c1c; }

.listening-dictation-errors {
  margin: 0.75rem 0;
}

.listening-dictation-errors__title {
  margin: 0 0 0.45rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.listening-dictation-analysis,
.listening-dictation-marked {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  line-height: 1.6;
}

.listening-dictation-token {
  display: inline-block;
  padding: 0.15rem 0.4rem;
  border-radius: 6px;
  font-size: 0.9rem;
}

.listening-dictation-token--correct {
  background: #dcfce7;
  color: #166534;
}

.listening-dictation-token--wrong {
  background: #fee2e2;
  color: #b91c1c;
}

.listening-dictation-token--missing {
  background: #fef9c3;
  color: #a16207;
}

.listening-dictation-token--extra {
  background: #f3f4f6;
  color: #6b7280;
}

.listening-dictation-actions {
  margin-bottom: 0.75rem;
}

.listening-dictation-ai {
  margin-top: 0.75rem;
  padding: 0.75rem;
  border: 1px dashed var(--chat-border);
  border-radius: 10px;
  background: var(--badge-bg);
}

.listening-dictation-ai__title {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.listening-dictation-ai__status {
  margin: 0 0 0.35rem;
  font-size: 0.8rem;
  color: var(--subtitle);
}

.listening-dictation-ai__desc {
  margin: 0 0 0.65rem;
  font-size: 0.8rem;
  color: var(--subtitle);
  line-height: 1.45;
}

.listening-player-slot {
  margin: 0.35rem 0 0.65rem;
}

.listening-player {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--chat-border);
  border-radius: 12px;
  background: var(--card);
}

.listening-player--compact {
  padding: 0.5rem 0.6rem;
  gap: 0.45rem;
}

.listening-player__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.listening-player__btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

.listening-player__speed {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.listening-player__speed-label {
  font-size: 0.75rem;
  color: var(--subtitle);
  margin-right: 0.15rem;
}

.listening-player__speed-btn {
  border: 1px solid var(--chat-border);
  background: var(--badge-bg);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  font-family: inherit;
  cursor: pointer;
}

.listening-player__speed-btn.is-active {
  border-color: var(--accent);
  background: #fff5f5;
  font-weight: 600;
}

.listening-player__count {
  margin: 0;
  font-size: 0.75rem;
  color: var(--subtitle);
}

.listening-player-slot--compact .listening-player__count {
  font-size: 0.7rem;
}

.listening-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.65rem;
}
.listening-tf-options {
  display: grid;
  gap: 0.5rem;
  margin: 0.75rem 0;
}

.listening-option,
.listening-tf-option,
.listening-image-option,
.listening-order-token {
  text-align: left;
  border: 1px solid var(--chat-border);
  background: var(--card);
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
  font-family: inherit;
  cursor: pointer;
}

.listening-option.is-selected,
.listening-tf-option.is-selected,
.listening-image-option.is-selected {
  border-color: var(--accent);
  background: #fff5f5;
}

.listening-option--correct,
.listening-image-option.listening-option--correct {
  border-color: #22c55e;
  background: #f0fdf4;
}

.listening-option--wrong {
  border-color: #ef4444;
  background: #fef2f2;
}

.listening-input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--chat-border);
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  margin: 0.5rem 0 0.75rem;
}

.listening-image-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 0.75rem 0;
}

.listening-image-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  min-height: 5.5rem;
}

.listening-image-option__emoji {
  font-size: 2rem;
}

.listening-order-result {
  min-height: 1.5rem;
  margin: 0.5rem 0;
  padding: 0.5rem 0.65rem;
  border-radius: 8px;
  background: var(--badge-bg);
  font-weight: 600;
}

.listening-order-answer {
  min-height: 2.5rem;
  margin: 0.75rem 0 0.5rem;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  border: 1px dashed var(--chat-border);
  background: var(--badge-bg);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.listening-order-answer__placeholder {
  color: var(--text-muted, #888);
  font-weight: 500;
}

.listening-order-answer__sep {
  color: var(--text-muted, #888);
  padding: 0 0.15rem;
}

.listening-order-answer-token {
  border: 1px solid var(--accent);
  background: #fff5f5;
  border-radius: 8px;
  padding: 0.35rem 0.55rem;
  font-family: inherit;
  cursor: grab;
  display: inline-block;
  user-select: none;
  -webkit-user-drag: element;
}

.listening-order-answer.is-drag-over {
  outline: 2px dashed var(--accent);
  outline-offset: 4px;
  border-radius: 8px;
}

.listening-order-token.is-disabled,
.listening-order-token[aria-disabled="true"] {
  cursor: not-allowed;
}

.listening-order-token[draggable="true"] {
  cursor: grab;
  user-select: none;
  -webkit-user-drag: element;
}

.listening-sentence-order-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.5rem 0 0.75rem;
}

.listening-sentence-order-feedback__actions {
  margin-top: 0.75rem;
}

.listening-order-pool {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
}

.listening-order-token.is-used {
  opacity: 0.45;
}

.listening-order-compare {
  margin: 0.5rem 0 0.75rem;
}

.listening-order-compare__tokens {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.listening-order-compare__token {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border: 2px solid var(--chat-border, #ddd);
  border-radius: 8px;
  padding: 0.3rem 0.5rem;
  font-size: 0.95rem;
}

.listening-order-compare__token.is-ok {
  border-color: #2e7d32;
  background: #e8f5e9;
}

.listening-order-compare__token.is-bad {
  border-color: #c62828;
  background: #ffebee;
}

.listening-order-compare__token.is-missing {
  border-color: #ef6c00;
  background: #fff3e0;
  font-style: italic;
}

.listening-order-compare__token.is-extra {
  border-color: #c62828;
  background: #ffebee;
}

.listening-order-compare__hint {
  font-size: 0.8rem;
  font-style: normal;
  color: var(--text-muted, #666);
}

.listening-order-answer-token.is-dragging {
  opacity: 0.55;
}

.listening-order-answer-token.is-drag-over {
  outline: 2px dashed var(--accent, #c62828);
  outline-offset: 2px;
}

.listening-order-streak-toast {
  position: fixed;
  left: 50%;
  top: 18%;
  transform: translateX(-50%);
  z-index: 12000;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  background: rgba(20, 20, 20, 0.92);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  animation: listening-order-streak-in 0.25s ease-out;
  pointer-events: none;
}

@keyframes listening-order-streak-in {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.listening-sentence-order-daily-card {
  margin-top: 0.75rem;
  padding: 0.75rem;
  border: 1px solid var(--chat-border, #e0e0e0);
  border-radius: 10px;
  background: var(--surface-muted, #fafafa);
}

.listening-sentence-order-daily-card h5 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}

.listening-practice-submit {
  margin-top: 0.35rem;
}

.listening-practice-feedback {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--chat-border);
}

.listening-feedback__result {
  margin: 0 0 0.75rem;
  font-weight: 700;
}

.listening-feedback__result--ok { color: #166534; }
.listening-feedback__result--bad { color: #b91c1c; }

.listening-feedback__compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

@media (min-width: 640px) {
  .listening-feedback__compare {
    grid-template-columns: 1fr 1fr;
  }
}

.listening-feedback__card {
  padding: 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--chat-border);
}

.listening-feedback__card.is-ok {
  border-color: #86efac;
  background: #f0fdf4;
}

.listening-feedback__card.is-bad {
  border-color: #fca5a5;
  background: #fef2f2;
}

.listening-feedback__card-title {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  color: var(--subtitle);
}

.listening-feedback__card-text {
  margin: 0;
  font-weight: 600;
}

.listening-feedback__zh {
  margin: 0 0 0.75rem;
  color: var(--subtitle);
  font-size: 0.875rem;
}

.listening-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.65rem;
}

.listening-mistake-book__summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
}

.listening-mistake-book__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  margin: 0 0 0.75rem;
  border: none;
  padding: 0;
}

.listening-mistake-book__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.listening-mistake-book__review-stats {
  margin-bottom: 0.75rem;
}

.listening-mistake-book__review-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--chat-border);
  border-radius: 0.65rem;
  background: var(--chat-surface, rgba(255, 255, 255, 0.04));
  font-size: 0.8125rem;
}

.listening-mistake-book__review-metrics strong {
  font-weight: 700;
}

.listening-review-complete {
  padding: 1rem 0.25rem;
  text-align: center;
}

.listening-review-complete__title {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
}

.listening-review-complete__text {
  margin: 0 0 0.35rem;
  color: var(--text-muted, #666);
}

.listening-mistake-table-wrap {
  overflow-x: auto;
}

.listening-mistake-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.listening-mistake-table th,
.listening-mistake-table td {
  padding: 0.5rem 0.45rem;
  border-bottom: 1px solid var(--chat-border);
  text-align: left;
  vertical-align: top;
}

.listening-stats-total {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-bottom: 0.85rem;
  font-size: 0.875rem;
}

.listening-stats-modes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
}

@media (min-width: 640px) {
  .listening-stats-modes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .listening-stats-modes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.listening-stats-mode {
  padding: 0.85rem;
  border-radius: 12px;
  border: 1px solid var(--chat-border);
  background: var(--card);
}

.listening-stats-mode h4 {
  margin: 0 0 0.35rem;
  font-size: 0.9375rem;
}

.listening-stats-mode p {
  margin: 0.15rem 0;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.listening-empty {
  margin: 0;
  color: var(--subtitle);
  font-size: 0.875rem;
}

.listening-ai-card .is-muted {
  opacity: 0.75;
}

.listening-recommend-card__metric,
.listening-recommend-card__training {
  margin: 0 0 0.45rem;
  font-size: 0.875rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.listening-recommend-card__suggest {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  color: var(--subtitle);
}

.listening-recommend-card__suggest ul {
  margin: 0.25rem 0 0;
  padding-left: 1.1rem;
}

.listening-ai-feedback {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid var(--chat-border);
  border-radius: 12px;
  background: var(--card);
}

.listening-ai-feedback__title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.listening-ai-feedback__score {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}

.listening-ai-feedback__dims {
  margin: 0 0 0.75rem;
  padding-left: 1.1rem;
  font-size: 0.875rem;
  line-height: 1.6;
}

.listening-ai-feedback__compare {
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.6;
}

.listening-ai-feedback__subtitle {
  margin: 0.75rem 0 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.listening-ai-feedback__analysis,
.listening-ai-feedback__tips {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.875rem;
  line-height: 1.6;
}

.listening-ai-feedback__legend {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.listening-ai-feedback__highlights {
  line-height: 1.8;
}

.listening-ai-feedback__pair {
  margin: 0 0 0.25rem;
  font-size: 0.875rem;
}

.listening-ai-feedback__bad {
  color: #b91c1c;
}

.listening-ai-feedback__good {
  color: #166534;
}

.listening-ai-feedback__zh {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  color: var(--subtitle);
}

.listening-ai-feedback__ok {
  margin: 0;
  font-size: 0.875rem;
  color: #166534;
}

.home-learning-analytics-wrap {
  max-width: 56rem;
  margin: 0 auto 1.75rem;
  padding: 0 1rem;
  position: relative;
  z-index: 1;
}

.home-learning-analytics {
  display: grid;
  gap: 1rem;
}

.home-learning-analytics__device-note {
  margin: 0.15rem 0 0;
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--text-muted, #6b7280);
  text-align: center;
}

@media (max-width: 767px) {
  .home-learning-analytics-wrap {
    padding: 0 0.75rem;
    margin-bottom: 1.25rem;
  }

  .home-learning-analytics {
    gap: 0.85rem;
  }

  .home-learning-card {
    max-width: 100%;
    overflow: visible;
  }

  .home-learning-card--radar {
    min-height: 320px;
    overflow: visible;
  }

  .learning-radar__chart-wrap {
    min-height: 260px;
    max-width: 100%;
    overflow: visible;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .learning-radar__svg {
    width: 100%;
    max-width: 100%;
    min-height: 260px;
    height: 260px;
  }

  .learning-radar__list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem 0.75rem;
    padding-left: 0;
    list-style: none;
    font-size: 12px;
  }

  .learning-radar__list li {
    margin: 0;
  }
}

@media (min-width: 900px) {
  .home-learning-analytics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.home-learning-card {
  border: 1px solid var(--chat-border);
  border-radius: 14px;
  background: var(--card);
  padding: 1rem;
}

.home-learning-card__title {
  margin: 0 0 0.65rem;
  font-size: 1rem;
}

.home-learning-card__level {
  margin: 0 0 0.35rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--title);
}

.home-learning-card__meta,
.home-learning-card__sub {
  margin: 0 0 0.35rem;
  font-size: 0.875rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.learning-radar__chart-wrap {
  max-width: 100%;
  overflow: visible;
  margin: 0 auto 0.75rem;
}

.learning-radar__svg {
  width: 100%;
  max-width: 280px;
  min-height: 220px;
  height: auto;
  display: block;
  margin: 0 auto;
  overflow: visible;
}

.learning-radar__grid {
  fill: none;
  stroke: var(--chat-border);
  stroke-width: 1;
}

.learning-radar__axis {
  stroke: var(--chat-border);
  stroke-width: 1;
}

.learning-radar__data {
  fill: rgba(59, 130, 246, 0.25);
  stroke: #2563eb;
  stroke-width: 2;
}

.learning-radar__label {
  font-size: 10px;
  fill: var(--subtitle);
}

.learning-radar__list {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--subtitle);
}

.home-learning-card__empty {
  margin: 0;
  font-size: 0.875rem;
  color: var(--subtitle);
  line-height: 1.5;
}

.home-analytics-debug {
  margin: 0 0 0.75rem;
  padding: 0.65rem 0.75rem;
  border: 1px dashed var(--chat-border);
  border-radius: 10px;
  background: rgba(59, 130, 246, 0.06);
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--subtitle);
}

.home-analytics-debug strong {
  color: var(--title);
}

.learning-radar__dim--nodata {
  color: var(--subtitle);
  font-style: normal;
}

.learning-radar__dim-note {
  display: block;
  font-size: 0.75rem;
  color: var(--subtitle);
  opacity: 0.85;
}