/* ================= 设计变量 ================= */
:root {
  --primary: #4C6FFF;
  --primary-deep: #3A55E0;
  --primary-soft: #EEF2FF;
  --accent: #FF8A3D;
  --green: #12A874;
  --green-soft: #E7F8F1;
  --red: #F2535A;
  --red-soft: #FEECEC;
  --bg: #F4F6FB;
  --card: #FFFFFF;
  --text: #151B2E;
  --muted: #7C86A2;
  --line: #E8EDF6;
  --shadow: 0 6px 20px rgba(28, 40, 90, 0.06);
  --hero: linear-gradient(135deg, #4E6BFF 0%, #7355FF 55%, #9A5CFF 100%);
  --q-size: 17px;
  --radius: 16px;
}

html[data-theme="dark"] {
  --primary: #6E8BFF;
  --primary-deep: #5B77F0;
  --primary-soft: #202844;
  --accent: #FFA45F;
  --green: #2FCE9B;
  --green-soft: #123A30;
  --red: #FF7A80;
  --red-soft: #3B1D22;
  --bg: #0F1320;
  --card: #171C2B;
  --text: #E8ECF7;
  --muted: #8B95B5;
  --line: #262D42;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --hero: linear-gradient(135deg, #2E43B8 0%, #4B3AA8 55%, #6A3DB0 100%);
}

html[data-font="large"] {
  --q-size: 19px;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: #E9EDF6;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

html[data-theme="dark"] body {
  background: #070A12;
}

button {
  font-family: inherit;
  color: inherit;
  cursor: pointer;
}

button:active {
  transform: scale(0.98);
}

svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.app {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 460px;
  height: 100vh;
  height: 100dvh;
  margin: 0 auto;
  overflow: hidden;
  background: var(--bg);
  box-shadow: 0 0 50px rgba(20, 30, 60, 0.09);
}

.views {
  flex: 1;
  overflow-x: hidden;
  overflow-y: auto;
  padding-bottom: 110px;
  -webkit-overflow-scrolling: touch;
}

.view {
  display: none;
  padding-bottom: 24px;
}

.view.active {
  display: block;
  animation: viewIn 0.25s ease;
}

@keyframes viewIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ================= 首页 ================= */
.hero {
  position: relative;
  margin: 14px 14px 0;
  padding: 18px 16px 16px;
  overflow: hidden;
  color: #fff;
  background: var(--hero);
  border-radius: 24px;
}

.orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.orb-a {
  top: -50px;
  right: -30px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0));
}

.orb-b {
  bottom: -60px;
  left: -20px;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle at 60% 40%, rgba(255, 191, 120, 0.35), rgba(255, 191, 120, 0));
}

.hero-head {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.hero-date {
  margin: 0;
  font-size: 11.5px;
  opacity: 0.82;
}

.hero-title {
  margin: 4px 0 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.streak {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  font-size: 11.5px;
  color: #fff;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
}

.streak svg {
  width: 14px;
  height: 14px;
}

.daily-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
  padding: 13px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 18px;
  backdrop-filter: blur(8px);
}

.daily-info {
  flex: 1;
  min-width: 0;
}

.daily-label {
  display: inline-block;
  padding: 1px 8px;
  font-size: 10.5px;
  background: rgba(255, 255, 255, 0.22);
  border-radius: 999px;
}

.daily-title {
  margin-top: 6px;
  overflow: hidden;
  font-size: 14.5px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.daily-sub {
  margin-top: 2px;
  overflow: hidden;
  font-size: 11px;
  opacity: 0.8;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.daily-btn {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 2px;
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 700;
  color: #3D57E8;
  background: #fff;
  border: 0;
  border-radius: 999px;
}

.daily-btn svg {
  width: 14px;
  height: 14px;
}

.continue-card {
  margin: 14px 14px 0;
  padding: 13px 14px 12px;
  background: var(--card);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.continue-top {
  display: flex;
  align-items: center;
  gap: 11px;
}

.continue-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 40px;
  height: 40px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 13px;
}

.continue-icon svg {
  width: 20px;
  height: 20px;
}

.continue-info {
  flex: 1;
  min-width: 0;
}

.continue-label {
  margin: 0;
  font-size: 10.5px;
  color: var(--muted);
}

.continue-info h3 {
  margin: 1px 0 0;
  overflow: hidden;
  font-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.continue-meta {
  margin: 2px 0 0;
  font-size: 11px;
  color: var(--muted);
}

.continue-btn {
  flex: 0 0 auto;
  padding: 8px 14px;
  font-size: 12.5px;
  font-weight: 600;
  color: #fff;
  background: var(--primary);
  border: 0;
  border-radius: 999px;
}

.continue-track {
  height: 4px;
  margin-top: 11px;
  overflow: hidden;
  background: var(--line);
  border-radius: 999px;
}

.continue-track span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #8A6CFF);
  border-radius: 999px;
  transition: width 0.3s;
}

/* ================= 通用区块 ================= */
.block {
  margin: 20px 14px 0;
}

.block-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 11px;
}

.block-head h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
}

.block-sub {
  font-size: 11px;
  color: var(--muted);
}

.link {
  display: flex;
  align-items: center;
  gap: 1px;
  padding: 0;
  font-size: 12px;
  color: var(--primary);
  background: none;
  border: 0;
}

.link svg {
  width: 14px;
  height: 14px;
}

.mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.mode-item {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 14px 13px;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(28, 40, 90, 0.03);
  transition: border-color 0.18s, transform 0.18s;
}

.mode-item:active {
  border-color: var(--primary);
  transform: scale(0.985);
}

.mode-icon {
  display: grid;
  place-items: center;
  width: 33px;
  height: 33px;
  border-radius: 10px;
}

.mode-icon svg {
  width: 18px;
  height: 18px;
}

.mode-icon.blue { color: #4C6FFF; background: #EDF1FF; }
.mode-icon.orange { color: #F08A2C; background: #FFF3E6; }
.mode-icon.green { color: #12A874; background: #E6F8F1; }
.mode-icon.purple { color: #8B5CF6; background: #F2ECFF; }
.mode-icon.red { color: #F2535A; background: #FEECEC; }
.mode-icon.teal { color: #0EA5A8; background: #E4F7F8; }

html[data-theme="dark"] .mode-icon.blue { background: #1E2747; }
html[data-theme="dark"] .mode-icon.orange { background: #3A2A18; }
html[data-theme="dark"] .mode-icon.green { background: #123A30; }
html[data-theme="dark"] .mode-icon.purple { background: #2A2145; }
html[data-theme="dark"] .mode-icon.red { background: #3B1D22; }
html[data-theme="dark"] .mode-icon.teal { background: #103437; }

.mode-name {
  font-size: 13.5px;
  font-weight: 600;
}

.mode-desc {
  font-size: 10.5px;
  line-height: 1.45;
  color: var(--muted);
}

.bank-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.bank-item {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  padding: 12px 13px;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.bank-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
}

.bank-icon svg {
  width: 20px;
  height: 20px;
}

.bank-body {
  flex: 1;
  min-width: 0;
}

.bank-name-line {
  display: flex;
  align-items: center;
  gap: 6px;
}

.bank-name {
  overflow: hidden;
  font-size: 13.5px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bank-tag {
  flex: 0 0 auto;
  padding: 1px 6px;
  font-size: 9.5px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 5px;
}

.bank-desc {
  margin: 2px 0 0;
  overflow: hidden;
  font-size: 10.5px;
  color: var(--muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bank-progress-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 7px;
}

.bank-progress {
  flex: 1;
  height: 4px;
  overflow: hidden;
  background: var(--line);
  border-radius: 999px;
}

.bank-progress span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #8A6CFF);
  border-radius: 999px;
}

.bank-progress-text {
  flex: 0 0 auto;
  font-size: 9.5px;
  color: var(--muted);
}

.chevron {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  color: #C3CADE;
}

.foot-note {
  margin: 24px 14px 0;
  font-size: 10.5px;
  color: var(--muted);
  text-align: center;
}

/* ================= 页面标题 / 搜索 ================= */
.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px;
  margin: 22px 16px 14px;
}

.page-head h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.page-sub {
  margin: 3px 0 0;
  font-size: 11.5px;
  color: var(--muted);
}

.bank-count {
  flex: 0 0 auto;
  padding: 4px 9px;
  font-size: 10.5px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 14px;
  padding: 10px 12px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.search-box > svg {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  color: var(--muted);
}

.search-box input {
  flex: 1;
  min-width: 0;
  padding: 0;
  font-family: inherit;
  font-size: 13px;
  color: var(--text);
  background: none;
  border: 0;
  outline: none;
}

.search-box input::placeholder {
  color: var(--muted);
}

.search-box input::-webkit-search-cancel-button {
  display: none;
}

.search-clear {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 24px;
  height: 24px;
  padding: 0;
  color: var(--muted);
  background: var(--line);
  border: 0;
  border-radius: 50%;
}

.search-clear svg {
  width: 12px;
  height: 12px;
}

.search-panel {
  margin: 12px 14px 0;
}

.search-tip {
  margin: 0 0 8px 2px;
  font-size: 11.5px;
  color: var(--muted);
}

.search-item {
  display: block;
  width: 100%;
  margin-bottom: 9px;
  padding: 13px 14px;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.search-stem {
  display: -webkit-box;
  overflow: hidden;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.55;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.search-meta {
  display: flex;
  gap: 8px;
  margin-top: 6px;
  font-size: 10.5px;
  color: var(--muted);
}

/* ================= 题库页 ================= */
.bank-card {
  margin: 13px 14px 0;
  padding: 15px 14px 13px;
  background: var(--card);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.bank-card-head {
  display: flex;
  align-items: flex-start;
  gap: 11px;
}

.bank-card-head .bank-icon {
  width: 46px;
  height: 46px;
}

.bank-card-title {
  flex: 1;
  min-width: 0;
}

.bank-card-title h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.bank-card-title p {
  margin: 3px 0 0;
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted);
}

.bank-card-meta {
  display: flex;
  gap: 10px;
  margin-top: 7px;
  font-size: 10.5px;
  color: var(--muted);
}

.bank-card-meta b {
  color: var(--primary);
  font-weight: 600;
}

.bank-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.bank-start {
  flex: 1;
  padding: 10px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #7A5CFF);
  border: 0;
  border-radius: 11px;
}

.bank-secondary {
  flex: 0 0 auto;
  padding: 10px 13px;
  font-size: 12.5px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 11px;
}

.chapter-list {
  margin-top: 13px;
  border-top: 1px solid var(--line);
}

.chapter-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 11px 2px;
  text-align: left;
  background: none;
  border: 0;
  border-bottom: 1px dashed var(--line);
}

.chapter-row:last-child {
  border-bottom: 0;
}

.chapter-index {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 22px;
  height: 22px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 7px;
}

.chapter-name {
  flex: 1;
  overflow: hidden;
  font-size: 12.5px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chapter-count {
  flex: 0 0 auto;
  font-size: 10.5px;
  color: var(--muted);
}

.chapter-play {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 24px;
  height: 24px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 50%;
}

.chapter-play svg {
  width: 12px;
  height: 12px;
}

/* ================= 错题本 ================= */
.ghost-btn {
  flex: 0 0 auto;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border: 0;
  border-radius: 999px;
}

.ghost-btn:disabled {
  opacity: 0.5;
}

.tip-strip {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 0 14px 12px;
  padding: 9px 11px;
  font-size: 11px;
  color: #A26A12;
  background: #FFF5E6;
  border-radius: 11px;
}

.tip-strip svg {
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
}

html[data-theme="dark"] .tip-strip {
  color: #F0BE7A;
  background: #2E2415;
}

.wrong-item {
  margin: 0 14px 10px;
  padding: 13px 14px 12px;
  background: var(--card);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.wrong-top {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 10.5px;
  color: var(--muted);
}

.wrong-type {
  padding: 1px 6px;
  font-size: 9.5px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 5px;
}

.wrong-count {
  margin-left: auto;
  color: var(--red);
}

.wrong-stem {
  display: -webkit-box;
  overflow: hidden;
  margin: 8px 0 7px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.55;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.wrong-answer {
  font-size: 11px;
  color: var(--muted);
}

.wrong-answer b {
  color: var(--green);
}

.wrong-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 9px;
}

.wrong-redo {
  padding: 6px 11px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border: 0;
  border-radius: 999px;
}

.wrong-remove {
  padding: 6px 4px;
  font-size: 11px;
  color: var(--muted);
  background: none;
  border: 0;
}

.empty-state {
  margin: 12px 14px;
  padding: 42px 20px;
  text-align: center;
  background: var(--card);
  border-radius: 18px;
}

.empty-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 12px;
  color: var(--muted);
  background: var(--bg);
  border-radius: 50%;
}

.empty-icon svg {
  width: 26px;
  height: 26px;
}

.empty-state h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.empty-state p {
  margin: 5px 0 0;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--muted);
}

.empty-action {
  margin-top: 14px;
  padding: 9px 18px;
  font-size: 12.5px;
  font-weight: 600;
  color: #fff;
  background: var(--primary);
  border: 0;
  border-radius: 999px;
}

/* ================= 我的 ================= */
.profile-card {
  display: flex;
  align-items: center;
  gap: 13px;
  margin: 0 14px;
  padding: 16px;
  background: var(--card);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.avatar {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 52px;
  height: 52px;
  color: #fff;
  background: linear-gradient(135deg, #4C6FFF, #9A5CFF);
  border-radius: 18px;
}

.avatar svg {
  width: 26px;
  height: 26px;
}

.profile-info {
  flex: 1;
  min-width: 0;
}

.profile-info h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
}

.profile-info p {
  margin: 2px 0 0;
  font-size: 11.5px;
  color: var(--muted);
}

.level-badge {
  flex: 0 0 auto;
  padding: 4px 9px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(255, 138, 61, 0.14);
  border-radius: 999px;
}

.stat-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 12px 14px;
}

.stat-card {
  padding: 13px 8px;
  text-align: center;
  background: var(--card);
  border-radius: 15px;
}

.stat-card b {
  display: block;
  font-size: 19px;
  font-weight: 700;
  color: var(--primary);
}

.stat-card span {
  font-size: 10.5px;
  color: var(--muted);
}

.card {
  margin: 0 14px 12px;
  padding: 15px 14px;
  background: var(--card);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.card-title {
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 700;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}

.setting-row:last-child {
  padding-bottom: 4px;
  border-bottom: 0;
}

.setting-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.setting-text span {
  font-size: 13px;
}

.setting-text small {
  font-size: 10.5px;
  color: var(--muted);
}

.switch {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: 44px;
  height: 26px;
}

.switch input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.switch i {
  position: absolute;
  inset: 0;
  background: var(--line);
  border-radius: 999px;
  transition: background 0.2s;
}

.switch i::after {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  content: "";
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
  transition: transform 0.2s;
}

.switch input:checked + i {
  background: var(--primary);
}

.switch input:checked + i::after {
  transform: translateX(18px);
}

.about-card p {
  margin: 6px 0 0;
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--muted);
}

.about-card b {
  color: var(--text);
}

.danger-btn {
  display: block;
  width: calc(100% - 28px);
  margin: 18px 14px 8px;
  padding: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--red);
  background: transparent;
  border: 1px solid rgba(242, 83, 90, 0.35);
  border-radius: 13px;
}

/* ================= 底部导航 ================= */
.tabbar {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 20;
  max-width: 460px;
  margin: 0 auto;
  padding: 7px 8px calc(7px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.94);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

html[data-theme="dark"] .tabbar {
  background: rgba(20, 25, 39, 0.94);
}

.tabbar-inner {
  display: flex;
  align-items: center;
}

.tab {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 5px 0 3px;
  font-size: 10px;
  color: var(--muted);
  background: none;
  border: 0;
  transition: color 0.2s;
}

.tab svg {
  width: 21px;
  height: 21px;
}

.tab.active {
  color: var(--primary);
}

.tab.active svg {
  stroke-width: 2.1;
}

/* ================= 答题层 ================= */
.layer {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  justify-content: center;
  background: var(--bg);
}

.layer.show {
  display: flex;
}

.layer-inner {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 460px;
  height: 100%;
  margin: 0 auto;
  background: var(--bg);
}

.quiz-top {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 7px;
  padding: calc(9px + env(safe-area-inset-top)) 12px 9px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.icon-btn {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 9px;
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

.fav-btn svg {
  transition: transform 0.2s;
}

.fav-btn.active {
  color: var(--accent);
}

.fav-btn.active svg {
  fill: var(--accent);
  stroke: var(--accent);
}

.quiz-headline {
  flex: 1;
  min-width: 0;
}

.quiz-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 5px;
  font-size: 11.5px;
  color: var(--muted);
}

.quiz-title-row span:first-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quiz-title-row span:last-child {
  flex: 0 0 auto;
  font-weight: 600;
  color: var(--primary);
}

.progress-track {
  height: 4px;
  overflow: hidden;
  background: var(--line);
  border-radius: 999px;
}

.progress-track span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #8A6CFF);
  border-radius: 999px;
  transition: width 0.25s;
}

.quiz-timer {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}

.quiz-timer svg {
  width: 13px;
  height: 13px;
}

.quiz-timer.urgent {
  color: var(--red);
}

.quiz-body {
  flex: 1;
  padding: 18px 16px 28px;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.q-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.type-tag {
  padding: 2px 8px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 6px;
}

.chapter-tag {
  font-size: 10.5px;
  color: var(--muted);
}

.q-source {
  margin-left: auto;
  font-size: 10.5px;
  color: var(--muted);
}

.q-stem {
  margin: 14px 0 18px;
  font-size: var(--q-size);
  font-weight: 600;
  line-height: 1.68;
  letter-spacing: 0.2px;
}

.q-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  width: 100%;
  padding: 13px 14px;
  text-align: left;
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: 14px;
  transition: border-color 0.18s, background 0.18s;
}

.option .opt-badge {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 24px;
  height: 24px;
  margin-top: 1px;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 50%;
  transition: background 0.18s, color 0.18s;
}

.option .opt-text {
  flex: 1;
  font-size: 14px;
  line-height: 1.55;
}

.option.selected {
  background: var(--primary-soft);
  border-color: var(--primary);
}

.option.selected .opt-badge {
  color: #fff;
  background: var(--primary);
}

.option.correct {
  background: var(--green-soft);
  border-color: var(--green);
}

.option.correct .opt-badge {
  color: #fff;
  background: var(--green);
}

.option.wrong {
  background: var(--red-soft);
  border-color: var(--red);
}

.option.wrong .opt-badge {
  color: #fff;
  background: var(--red);
}

.option.readonly {
  cursor: default;
}

.multi-confirm {
  width: 100%;
  margin-top: 14px;
  padding: 12px;
  font-size: 13.5px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #7A5CFF);
  border: 0;
  border-radius: 12px;
}

.multi-confirm:disabled {
  opacity: 0.5;
}

.analysis {
  margin-top: 18px;
  padding: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  animation: fadeUp 0.28s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.analysis-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.analysis-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
}

.analysis-title::before {
  width: 3px;
  height: 13px;
  content: "";
  background: var(--primary);
  border-radius: 2px;
}

.result-pill {
  padding: 2px 8px;
  font-size: 10.5px;
  font-weight: 600;
  border-radius: 999px;
}

.result-pill.ok {
  color: var(--green);
  background: var(--green-soft);
}

.result-pill.no {
  color: var(--red);
  background: var(--red-soft);
}

.answer-lines {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 11px 0 0;
  font-size: 12px;
  color: var(--muted);
}

.answer-lines b {
  font-size: 12.5px;
}

.answer-lines .ok b {
  color: var(--green);
}

.answer-lines .no b {
  color: var(--red);
}

.analysis-text {
  margin-top: 11px;
  padding: 10px 11px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  border-radius: 10px;
}

.quiz-bar {
  display: flex;
  flex: 0 0 auto;
  gap: 9px;
  padding: 9px 14px calc(9px + env(safe-area-inset-bottom));
  background: var(--card);
  border-top: 1px solid var(--line);
  box-shadow: 0 -4px 20px rgba(20, 30, 60, 0.05);
}

.bar-btn {
  flex: 1;
  padding: 12px 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.bar-btn.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #7A5CFF);
  border: 0;
}

.bar-btn:disabled {
  opacity: 0.45;
}

.sheet-btn {
  font-size: 12px;
}

.sheet-btn span {
  display: block;
  font-size: 9.5px;
  font-weight: 500;
  opacity: 0.75;
}

/* ================= 抽屉 / 弹窗 ================= */
.mask {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(10, 15, 30, 0.46);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

.mask.show {
  opacity: 1;
  visibility: visible;
}

.sheet {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 460px;
  max-height: 78vh;
  margin: 0 auto;
  padding: 17px 16px calc(14px + env(safe-area-inset-bottom));
  background: var(--card);
  border-radius: 22px 22px 0 0;
  transform: translateY(105%);
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.sheet.show {
  transform: translateY(0);
}

.sheet-head {
  display: flex;
  flex: 0 0 auto;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.sheet-head h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
}

.sheet-head p {
  margin: 2px 0 0;
  font-size: 11px;
  color: var(--muted);
}

.sheet-legend {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 14px;
  margin: 12px 0 4px;
  font-size: 10.5px;
  color: var(--muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.legend-dot {
  width: 9px;
  height: 9px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.legend-dot.correct { background: var(--green); border-color: var(--green); }
.legend-dot.wrong { background: var(--red); border-color: var(--red); }
.legend-dot.done { background: var(--primary); border-color: var(--primary); }
.legend-dot.current-dot { background: transparent; border: 2px solid var(--primary); }

.sheet-grid {
  display: grid;
  flex: 1;
  grid-template-columns: repeat(5, 1fr);
  gap: 9px;
  margin: 12px 0;
  padding: 2px;
  overflow-y: auto;
}

.sheet-cell {
  aspect-ratio: 1 / 1;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.sheet-cell.correct {
  color: var(--green);
  background: var(--green-soft);
  border-color: var(--green);
}

.sheet-cell.wrong {
  color: var(--red);
  background: var(--red-soft);
  border-color: var(--red);
}

.sheet-cell.done {
  color: var(--primary);
  background: var(--primary-soft);
  border-color: var(--primary);
}

.sheet-cell.current {
  box-shadow: 0 0 0 2px var(--primary) inset;
}

.sheet-foot {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 12px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.sheet-info {
  flex: 1;
  font-size: 11.5px;
  color: var(--muted);
}

.btn-primary {
  padding: 11px 18px;
  font-size: 13.5px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #7A5CFF);
  border: 0;
  border-radius: 12px;
}

.btn-ghost {
  padding: 11px 18px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
}

/* ================= 章节选择 ================= */
.sheet.picker {
  max-height: 72vh;
}

.picker-list {
  margin-top: 12px;
  overflow-y: auto;
}

.picker-bank {
  margin: 9px 0 4px;
  font-size: 10.5px;
  color: var(--muted);
}

.picker-bank:first-child {
  margin-top: 0;
}

.picker-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 12px 2px;
  text-align: left;
  background: none;
  border: 0;
  border-bottom: 1px dashed var(--line);
}

.picker-item-name {
  flex: 1;
  font-size: 13px;
}

.picker-item-count {
  font-size: 10.5px;
  color: var(--muted);
}

.picker-item svg {
  width: 15px;
  height: 15px;
  color: var(--muted);
}

/* ================= 结果页 ================= */
.result-layer {
  z-index: 80;
}

.result-scroll {
  flex: 1;
  padding: calc(24px + env(safe-area-inset-top)) 16px calc(20px + env(safe-area-inset-bottom));
  overflow-y: auto;
}

.result-hero {
  padding: 4px 0 18px;
  text-align: center;
}

.result-ring {
  position: relative;
  width: 150px;
  height: 150px;
  margin: 0 auto;
}

.result-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring-bg {
  fill: none;
  stroke: var(--line);
  stroke-width: 9;
}

.ring-value {
  fill: none;
  stroke: var(--primary);
  stroke-width: 9;
  stroke-dasharray: 326.7;
  stroke-dashoffset: 326.7;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.9s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.ring-value.pass {
  stroke: var(--green);
}

.ring-value.fail {
  stroke: var(--accent);
}

.ring-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.ring-center b {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.1;
}

.ring-center span {
  margin-top: 1px;
  font-size: 11px;
  color: var(--muted);
}

.result-hero h2 {
  margin: 13px 0 3px;
  font-size: 20px;
  font-weight: 700;
}

.result-hero p {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 14px 8px;
  background: var(--card);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.result-grid div {
  text-align: center;
}

.result-grid div + div {
  border-left: 1px solid var(--line);
}

.result-grid b {
  display: block;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
}

.result-grid span {
  font-size: 10px;
  color: var(--muted);
}

.review-card {
  margin-top: 14px;
  padding: 14px;
}

.card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.card-title-row h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
}

.card-title-row span {
  font-size: 10.5px;
  color: var(--muted);
}

.review-item {
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}

.review-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.review-stem {
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.55;
}

.review-answer {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  margin-top: 5px;
  font-size: 10.5px;
  color: var(--muted);
}

.review-answer b {
  color: var(--green);
}

.review-answer i {
  font-style: normal;
  color: var(--red);
}

.review-analysis {
  margin-top: 6px;
  font-size: 11px;
  line-height: 1.65;
  color: var(--muted);
}

.result-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.result-actions button {
  flex: 1;
}

/* ================= 弹窗 / 提示 ================= */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: none;
  place-items: center;
  padding: 24px;
  background: rgba(10, 15, 30, 0.5);
}

.modal-mask.show {
  display: grid;
}

.modal {
  width: 100%;
  max-width: 310px;
  padding: 20px;
  text-align: center;
  background: var(--card);
  border-radius: 18px;
  animation: fadeUp 0.22s ease;
}

.modal h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
}

.modal p {
  margin: 8px 0 18px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.modal-actions {
  display: flex;
  gap: 9px;
}

.modal-actions button {
  flex: 1;
  padding: 10px;
  font-size: 13px;
}

.toast {
  position: fixed;
  bottom: 96px;
  left: 50%;
  z-index: 130;
  max-width: 78%;
  padding: 9px 15px;
  font-size: 12.5px;
  line-height: 1.5;
  color: #fff;
  text-align: center;
  pointer-events: none;
  background: rgba(21, 27, 46, 0.92);
  border-radius: 10px;
  opacity: 0;
  transform: translateX(-50%) translateY(8px);
  transition: opacity 0.22s, transform 0.22s;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

html[data-theme="dark"] .toast {
  background: rgba(60, 68, 94, 0.96);
}

/* 窄屏微调 */
@media (max-width: 360px) {
  .hero-title { font-size: 20px; }
  .mode-desc { display: none; }
  .mode-item { gap: 5px; }
  .sheet-grid { grid-template-columns: repeat(5, 1fr); gap: 7px; }
}

/* ================= 登录页 ================= */
.login-gate {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 18px;
  overflow: hidden;
  background: linear-gradient(160deg, #1B2A6B 0%, #3A3D9E 45%, #6A3DB0 100%);
}

html[data-theme="dark"] .login-gate {
  background: linear-gradient(160deg, #0B1024 0%, #1A1F4A 55%, #2A1B4D 100%);
}

.login-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(2px);
}

.login-orb-a {
  top: -90px;
  right: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.32), rgba(255, 255, 255, 0));
}

.login-orb-b {
  bottom: -120px;
  left: -70px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle at 60% 40%, rgba(255, 170, 90, 0.34), rgba(255, 170, 90, 0));
}

.login-card {
  position: relative;
  width: 100%;
  max-width: 340px;
  padding: 26px 22px 20px;
  text-align: center;
  background: rgba(255, 255, 255, 0.97);
  border-radius: 24px;
  box-shadow: 0 24px 60px rgba(8, 14, 40, 0.32);
  animation: viewIn 0.3s ease;
}

html[data-theme="dark"] .login-card {
  background: #171C2B;
}

.login-logo {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin: 0 auto 12px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #7A5CFF);
  border-radius: 18px;
  box-shadow: 0 10px 22px rgba(76, 111, 255, 0.36);
}

.login-logo svg {
  width: 30px;
  height: 30px;
}

.login-card h1 {
  margin: 0;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 1px;
}

.login-sub {
  margin: 4px 0 20px;
  font-size: 11.5px;
  color: var(--muted);
}

.login-field {
  display: block;
  margin-bottom: 11px;
  text-align: left;
}

.login-field span {
  display: block;
  margin-bottom: 5px;
  font-size: 11.5px;
  color: var(--muted);
}

.login-field input {
  width: 100%;
  padding: 11px 13px;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  outline: none;
}

.login-field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(76, 111, 255, 0.14);
}

.login-error {
  min-height: 17px;
  margin: 2px 0 8px;
  font-size: 11.5px;
  color: var(--red);
  text-align: left;
}

.login-submit {
  width: 100%;
  padding: 12px;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #7A5CFF);
  border: 0;
  border-radius: 13px;
  box-shadow: 0 8px 18px rgba(76, 111, 255, 0.28);
}

.login-hint {
  margin-top: 16px;
  padding-top: 12px;
  font-size: 10.5px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px dashed var(--line);
}

.login-hint p {
  margin: 2px 0;
}

.login-hint b {
  color: var(--text);
}

/* ================= 听题 ================= */
.listen-btn {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-left: auto;
  padding: 4px 9px;
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border: 0;
  border-radius: 999px;
}

.listen-btn svg {
  width: 13px;
  height: 13px;
}

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

.listen-panel {
  margin-top: 12px;
  padding: 12px 13px;
  background: var(--primary-soft);
  border: 1px solid rgba(76, 111, 255, 0.18);
  border-radius: 14px;
}

.listen-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.listen-title {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
}

.listen-title svg {
  width: 14px;
  height: 14px;
}

.listen-stop {
  padding: 3px 10px;
  font-size: 11px;
  color: var(--muted);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.listen-status {
  margin: 7px 0 0;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--text);
}

.listen-interval {
  margin-top: 9px;
}

.listen-interval-label {
  display: block;
  margin-bottom: 5px;
  font-size: 10.5px;
  color: var(--muted);
}

.interval-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.interval-chip {
  padding: 5px 10px;
  font-size: 11px;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.interval-chip.active {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
}

.listen-countdown {
  margin: 9px 0 0;
  font-size: 11.5px;
  color: var(--muted);
}

.listen-countdown b {
  font-size: 14px;
  color: var(--accent);
}

.listen-answer {
  margin-top: 9px;
  padding-top: 9px;
  border-top: 1px dashed rgba(76, 111, 255, 0.28);
}

.listen-answer .listen-answer-line {
  font-size: 12px;
  color: var(--green);
}

.listen-answer .listen-answer-line b {
  font-size: 14px;
}

.listen-answer p {
  margin: 6px 0 0;
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--muted);
}

.option.listen-reveal {
  box-shadow: 0 0 0 2px var(--green) inset;
  background: var(--green-soft);
}

/* ================= 我的页新增 ================= */
.setting-row-block {
  display: block;
}

.setting-row-block .interval-chips {
  margin-top: 9px;
}

.logout-btn {
  width: 100%;
  margin-top: 4px;
  padding: 12px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--primary);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

/* 错题移出提示 */
.wrong-removed-tip {
  margin-bottom: 10px;
  padding: 9px 12px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--muted);
  background: var(--card);
  border: 1px dashed var(--line);
  border-radius: 12px;
}

/* ================= 新增练习模式配色 ================= */
.mode-icon.pink { color: #E0569B; background: #FDEBF4; }
.mode-icon.indigo { color: #5B61E0; background: #ECEEFF; }

html[data-theme="dark"] .mode-icon.pink { background: #3A1B2B; }
html[data-theme="dark"] .mode-icon.indigo { background: #20244A; }

/* ================= 自定义考试 ================= */
.custom-sheet {
  max-height: 86vh;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
}

.custom-scroll {
  flex: 1;
  min-height: 0;
  margin-top: 12px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.custom-tip {
  margin: 0 0 12px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--muted);
}

.custom-bank {
  margin-bottom: 10px;
  padding: 12px 13px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.custom-bank-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}

.custom-bank-head h4 {
  margin: 0;
  overflow: hidden;
  font-size: 13.5px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.custom-bank-head span {
  flex: 0 0 auto;
  font-size: 10.5px;
  color: var(--muted);
}

.custom-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
}

.custom-row + .custom-row {
  border-top: 1px dashed var(--line);
}

.custom-type {
  flex: 0 0 58px;
  font-size: 12.5px;
  font-weight: 600;
}

.custom-avail {
  flex: 1;
  font-size: 10.5px;
  color: var(--muted);
}

.custom-input {
  width: 58px;
  height: 30px;
  padding: 0 4px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
  -moz-appearance: textfield;
  appearance: textfield;
}

.custom-input:focus {
  border-color: var(--primary);
}

.custom-input::-webkit-outer-spin-button,
.custom-input::-webkit-inner-spin-button {
  margin: 0;
  -webkit-appearance: none;
}

.custom-unit {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--muted);
}

.custom-duration {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  padding: 12px 13px;
  font-size: 12.5px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.custom-duration input {
  width: 64px;
  height: 30px;
  padding: 0 4px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
}

.custom-duration input:focus {
  border-color: var(--primary);
}

.custom-foot {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.custom-foot span {
  flex: 1;
  font-size: 11.5px;
  color: var(--muted);
}

.custom-foot .btn-primary[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ================= 背题模式 ================= */
.recite-layer {
  z-index: 70;
}

.recite-top {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  padding: 14px 16px 10px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.recite-head {
  flex: 1;
  min-width: 0;
}

.recite-head h2 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
}

.recite-head p {
  margin: 2px 0 0;
  overflow: hidden;
  font-size: 11px;
  color: var(--muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recite-badge {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 4px;
  padding: 5px 9px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
  background: var(--primary-soft);
  border-radius: 999px;
}

.recite-badge svg {
  width: 13px;
  height: 13px;
}

.recite-body {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.recite-picker-tip {
  margin: 0;
  font-size: 12px;
  line-height: 1.65;
  color: var(--muted);
}

.recite-bank-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-top: 14px;
}

.recite-bank {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  padding: 12px;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.recite-bank-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.recite-bank-body b {
  overflow: hidden;
  font-size: 13.5px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recite-bank-body span {
  font-size: 10.5px;
  color: var(--muted);
}

.recite-all {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  margin-top: 12px;
  padding: 13px;
  text-align: left;
  background: var(--primary-soft);
  border: 1px dashed var(--primary);
  border-radius: 16px;
}

.recite-all-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--primary);
  background: var(--card);
  border-radius: 13px;
}

.recite-all-icon svg {
  width: 21px;
  height: 21px;
}

.recite-all-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.recite-all-body b {
  font-size: 13.5px;
}

.recite-all-body span {
  font-size: 10.5px;
  color: var(--muted);
}

.recite-all-count {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
}

.recite-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.recite-progress-track {
  height: 4px;
  margin: 12px 0 16px;
  overflow: hidden;
  background: var(--line);
  border-radius: 999px;
}

.recite-progress-track span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #8A6CFF);
  border-radius: 999px;
  transition: width 0.25s;
}

.recite-stem {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.2px;
}

.recite-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.recite-opt {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  padding: 11px 12px;
  font-size: 13.5px;
  line-height: 1.5;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.recite-opt.correct {
  background: var(--green-soft);
  border-color: rgba(18, 168, 116, 0.55);
}

.recite-opt-badge {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 22px;
  height: 22px;
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  background: var(--bg);
  border-radius: 7px;
}

.recite-opt.correct .recite-opt-badge {
  color: #fff;
  background: var(--green);
}

.recite-opt-flag {
  flex: 0 0 auto;
  margin-left: auto;
  font-size: 10px;
  font-weight: 600;
  color: var(--green);
}

.recite-answer-box {
  margin-top: 14px;
  padding: 12px 13px;
  font-size: 13.5px;
  color: var(--green);
  background: var(--green-soft);
  border-radius: 12px;
}

.recite-answer-box b {
  margin-left: 4px;
  font-size: 16px;
}

.recite-analysis {
  margin-top: 10px;
  padding: 12px 13px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  background: var(--card);
  border-radius: 12px;
}

.recite-status {
  margin: 14px 0 0;
  font-size: 11.5px;
  color: var(--primary);
  text-align: center;
}

.recite-bar {
  display: grid;
  flex: 0 0 auto;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 8px;
  padding: 10px 16px calc(12px + env(safe-area-inset-bottom));
  background: var(--card);
  border-top: 1px solid var(--line);
}

.recite-btn {
  padding: 11px 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
}

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