.student-page {
  min-height: 100vh;
  padding: 28px;
  background: var(--tiku-page);
}

.login-page {
  display: grid;
  min-height: 100vh;
  align-content: center;
  gap: 20px;
  background:
    linear-gradient(to right, rgba(15, 23, 42, 0.032) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.032) 1px, transparent 1px),
    #f4f6f9;
  background-size: 40px 40px;
}

.login-hero {
  position: relative;
  overflow: hidden;
  min-height: 310px;
  padding: 34px 30px;
  border-radius: 24px;
  background: linear-gradient(135deg, #1152d4 0%, #2563eb 58%, #60a5fa 100%);
  box-shadow: var(--tiku-shadow-blue);
}

.login-hero::after {
  content: "";
  position: absolute;
  right: -52px;
  bottom: -72px;
  width: 220px;
  height: 220px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
}

.login-avatar,
.login-kicker,
.login-title,
.login-subtitle {
  position: relative;
  z-index: 1;
}

.login-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border: 3px solid rgba(255, 255, 255, 0.54);
  border-radius: 18px;
  background: #fff;
}

.login-avatar-mark {
  color: var(--tiku-primary);
  font-size: 36px;
  font-weight: 950;
}

.login-kicker {
  display: block;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
  font-weight: 850;
}

.login-title {
  display: block;
  margin-top: 10px;
  color: #fff;
  font-size: 42px;
  font-weight: 950;
  line-height: 1.12;
}

.login-subtitle {
  display: block;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 21px;
  line-height: 1.45;
}

.login-card {
  padding: 24px;
  border: 1px solid #f1f5f9;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.login-card .row-main {
  font-size: 25px;
  font-weight: 900;
}

.login-card .row-meta {
  font-size: 19px;
}

.login-card .toolbar {
  align-items: center;
  overflow-x: visible;
}

.login-card .toolbar .input {
  flex: 1;
  min-width: 0;
}

.login-page-admin {
  background:
    linear-gradient(to right, rgba(15, 23, 42, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.035) 1px, transparent 1px),
    #f4f6f9;
  background-size: 40px 40px;
}

.login-page-admin .login-hero {
  background: #111827;
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.18);
}

.login-page-admin .login-hero::after {
  background: rgba(37, 99, 235, 0.26);
}

.login-page-admin .login-avatar {
  border-color: rgba(255, 255, 255, 0.18);
  background: #1e293b;
}

.login-page-admin .login-avatar-mark {
  color: #fff;
}

.login-page-admin .login-kicker {
  color: #93c5fd;
}

.login-page-admin .login-card {
  border-color: #e5e7eb;
}

.login-page-admin .login-card .row-main {
  color: #111827;
}

.login-page-admin .login-card .row-meta {
  color: #64748b;
}

.student-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.student-title-block {
  min-width: 0;
}

.student-kicker {
  display: block;
  color: var(--tiku-primary);
  font-size: 22px;
  font-weight: 800;
}

.student-title {
  display: block;
  margin-top: 6px;
  color: var(--tiku-text);
  font-size: 38px;
  font-weight: 900;
  line-height: 1.2;
}

.student-subtitle {
  display: block;
  margin-top: 8px;
  color: var(--tiku-muted);
  font-size: 24px;
  line-height: 1.45;
}

.toolbar {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.toolbar.wrap {
  flex-wrap: wrap;
  overflow-x: visible;
}

.pill-button,
.primary-button,
.secondary-button,
.danger-button {
  min-width: 120px;
  height: 64px;
  border-radius: 16px;
  font-size: 24px;
  font-weight: 820;
  line-height: 64px;
}

.primary-button {
  border: 0;
  background: linear-gradient(135deg, var(--tiku-primary), #2563eb);
  color: #fff;
  box-shadow: 0 10px 20px rgba(17, 82, 212, 0.18);
}

.secondary-button,
.pill-button {
  border: 1px solid var(--tiku-border);
  background: #fff;
  color: var(--tiku-primary);
}

.secondary-button.active {
  border-color: var(--tiku-primary);
  background: var(--tiku-primary-soft);
  color: var(--tiku-primary);
}

.danger-button {
  border: 1px solid #fecaca;
  background: #fff1f2;
  color: #be123c;
}

.pill-button.active {
  border-color: var(--tiku-primary);
  background: var(--tiku-primary-soft);
  color: var(--tiku-primary);
}

.pill-button.warn {
  border-color: #f59e0b;
  background: #fffbeb;
  color: #92400e;
}

.section-block {
  margin-top: 30px;
}

.section-heading {
  display: block;
  margin-bottom: 16px;
  color: var(--tiku-text);
  font-size: 30px;
  font-weight: 800;
}

.quiet-panel {
  padding: 28px;
  border: 1px solid var(--tiku-border);
  border-radius: var(--tiku-radius);
  background: #fff;
  box-shadow: var(--tiku-shadow);
}

.student-page > .quiet-panel:first-of-type:not(.login-card) {
  border-color: #bfdbfe;
  background: linear-gradient(135deg, #eff6ff 0%, #fff 72%);
}

.list-stack > .quiet-panel:first-child {
  border-radius: 28px;
}

.list-stack > .quiet-panel:first-child .row-meta:first-child {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--tiku-primary-soft);
  color: var(--tiku-primary);
  font-weight: 800;
}

.report-panel {
  padding: 28px;
  border: 1px solid #bfdbfe;
  border-radius: var(--tiku-radius);
  background: linear-gradient(135deg, #eff6ff, #fff);
  box-shadow: var(--tiku-shadow);
}

.report-panel .metric,
.quiet-panel .metric {
  box-shadow: none;
}

.learning-report-panel {
  background: #f8fbff;
}

.profile-card {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 24px;
  border: 1px solid var(--tiku-border);
  border-radius: var(--tiku-radius);
  background: #fff;
  box-shadow: var(--tiku-shadow);
}

.profile-avatar {
  flex: 0 0 116px;
  width: 116px;
  height: 116px;
  border: 1px solid #bfdbfe;
  border-radius: 24px;
  background: linear-gradient(135deg, #1152d4, #60a5fa);
  color: #fff;
  text-align: center;
}

.profile-avatar.female {
  border-color: #fbcfe8;
  background: linear-gradient(135deg, #ec4899, #f472b6);
  color: #fff;
}

.profile-avatar-mark {
  display: block;
  font-size: 48px;
  font-weight: 850;
  line-height: 116px;
}

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

.avatar-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.avatar-choice {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  min-height: 88px;
  padding: 14px;
  border: 1px solid var(--tiku-border);
  border-radius: 16px;
  background: #f8fafc;
}

.avatar-choice.active {
  border-color: var(--tiku-primary);
  background: var(--tiku-primary-soft);
}

.avatar-choice.busy {
  opacity: 0.72;
}

.avatar-choice-icon {
  flex: 0 0 54px;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: #dbeafe;
  color: var(--tiku-primary);
  text-align: center;
}

.avatar-choice-icon.female {
  background: #fce7f3;
  color: #be185d;
}

.avatar-choice-mark {
  display: block;
  font-size: 28px;
  font-weight: 850;
  line-height: 54px;
}

.avatar-choice-copy {
  min-width: 0;
}

.avatar-choice-title {
  display: block;
  color: var(--tiku-text);
  font-size: 24px;
  font-weight: 780;
  line-height: 1.25;
}

.avatar-choice-meta {
  display: block;
  margin-top: 4px;
  color: var(--tiku-muted);
  font-size: 20px;
  line-height: 1.25;
}

.list-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.list-row {
  padding: 22px;
  border: 1px solid var(--tiku-border);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}

.list-row:nth-child(3n + 1) {
  border-color: #dbeafe;
}

.list-row:nth-child(3n + 2) {
  border-color: #dcfce7;
}

.list-row:nth-child(3n) {
  border-color: #fef3c7;
}

.list-row.active {
  border-color: var(--tiku-primary);
  background: var(--tiku-primary-soft);
  box-shadow: 0 8px 20px rgba(17, 82, 212, 0.12);
}

.notification-row.active {
  border-color: #93c5fd;
}

.split-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.split-row .row-main {
  flex: 1;
  min-width: 0;
}

.composite-subquestion {
  margin-top: 0;
}

.sub-option-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.sub-explanation {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--tiku-border);
}

.option-line {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  min-width: 0;
}

.option-prefix {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: #f1f5f9;
  color: #475569;
  font-size: 26px;
  font-weight: 850;
  line-height: 44px;
}

.list-row.active .option-prefix {
  background: #dbeafe;
  color: var(--tiku-primary);
}

.option-rich {
  flex: 1;
  min-width: 0;
}

.answer-detail {
  margin-top: 16px;
  padding: 18px;
  border: 1px solid var(--tiku-border);
  border-radius: 18px;
  background: #f8fafc;
}

.answer-detail-label {
  display: block;
  margin-bottom: 8px;
  color: var(--tiku-primary);
  font-size: 22px;
  font-weight: 850;
}

.row-main {
  display: block;
  color: var(--tiku-text);
  font-size: 28px;
  font-weight: 750;
  line-height: 1.35;
}

.row-meta {
  display: block;
  margin-top: 8px;
  color: var(--tiku-muted);
  font-size: 22px;
  line-height: 1.45;
}

.notification-message {
  color: #334155;
}

.notification-action-text {
  align-self: center;
  color: var(--tiku-primary);
  font-weight: 760;
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.metric {
  padding: 22px;
  border: 1px solid var(--tiku-border);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}

.compact-metric {
  padding: 18px;
}

.metric-value {
  display: block;
  color: var(--tiku-text);
  font-size: 34px;
  font-weight: 800;
}

.metric-label {
  display: block;
  margin-top: 8px;
  color: var(--tiku-muted);
  font-size: 22px;
}

.report-summary-line {
  margin-top: 18px;
}

.empty-state {
  padding: 38px 26px;
  border: 1px dashed var(--tiku-border-strong);
  border-radius: 22px;
  background: #fff;
  color: var(--tiku-muted);
  font-size: 24px;
  line-height: 1.5;
}

.input {
  width: 100%;
  height: 72px;
  padding: 0 20px;
  border: 1px solid var(--tiku-border);
  border-radius: 16px;
  background: #fff;
  color: #111827;
  font-size: 26px;
}

.textarea {
  width: 100%;
  min-height: 140px;
  padding: 18px 20px;
  border: 1px solid var(--tiku-border);
  border-radius: 16px;
  background: #fff;
  color: #111827;
  font-size: 26px;
  line-height: 1.45;
}

.error-text {
  display: block;
  margin-top: 14px;
  color: #be123c;
  font-size: 22px;
  line-height: 1.4;
}

.success-text {
  display: block;
  margin-top: 14px;
  color: #047857;
  font-size: 22px;
  line-height: 1.4;
}

.muted-text {
  color: var(--tiku-muted);
}

.video-frame {
  width: 100%;
  min-height: 360px;
  border: 0;
  border-radius: 24px;
  background: #0f172a;
}

.student-page .toolbar + .quiet-panel,
.student-page .toolbar + .report-panel,
.student-page .section-block + .quiet-panel {
  margin-top: 18px;
}

.checkout-toolbar {
  align-items: center;
  overflow-x: visible;
}

.checkout-toolbar .input {
  flex: 1;
  min-width: 0;
}

.checkout-actions {
  margin-top: 18px;
}

.compact-toolbar {
  margin-top: 14px;
  padding-bottom: 0;
}

.notification-toolbar {
  margin-top: 16px;
}

.notification-summary-grid {
  margin-top: 6px;
}

.notifications-page .notification-filterbar,
.notifications-page .notification-typebar {
  gap: 10px;
}

.notifications-page .notification-typebar {
  margin-top: 12px;
}

.notifications-page .pill-button {
  min-width: 132px;
}

.notification-actions {
  flex-wrap: wrap;
  overflow-x: visible;
}

.compact-toolbar .primary-button,
.compact-toolbar .secondary-button {
  min-width: 104px;
  height: 56px;
  font-size: 22px;
  line-height: 56px;
}

.amount-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.amount-text {
  display: block;
  margin-top: 8px;
  color: #0f172a;
  font-size: 40px;
  font-weight: 850;
  line-height: 1.15;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  background: #ecfdf5;
  color: #047857;
  font-size: 22px;
  font-weight: 750;
}

.status-badge.warning {
  background: #fffbeb;
  color: #92400e;
}

.status-badge.danger {
  background: #fff1f2;
  color: #be123c;
}

.trend-chart {
  display: grid;
  grid-template-columns: repeat(14, minmax(0, 1fr));
  gap: 10px;
  align-items: end;
  padding: 22px;
  border: 1px solid var(--tiku-border);
  border-radius: var(--tiku-radius);
  background: #fff;
  box-shadow: var(--tiku-shadow);
}

.trend-column {
  min-width: 0;
  text-align: center;
}

.trend-value {
  display: block;
  min-height: 28px;
  color: #334155;
  font-size: 20px;
  font-weight: 760;
  line-height: 1.2;
}

.trend-bar-track {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  height: 136px;
  margin-top: 8px;
  border-radius: 999px;
  background: #f1f5f9;
}

.trend-bar-fill {
  width: 100%;
  max-width: 28px;
  border-radius: 999px 999px 0 0;
  background: var(--tiku-primary);
}

.trend-bar-fill.h-bucket-0 { height: 0; }
.trend-bar-fill.h-bucket-1 { height: 10px; }
.trend-bar-fill.h-bucket-2 { height: 20px; }
.trend-bar-fill.h-bucket-3 { height: 30px; }
.trend-bar-fill.h-bucket-4 { height: 40px; }
.trend-bar-fill.h-bucket-5 { height: 50px; }
.trend-bar-fill.h-bucket-6 { height: 62px; }
.trend-bar-fill.h-bucket-7 { height: 74px; }
.trend-bar-fill.h-bucket-8 { height: 86px; }
.trend-bar-fill.h-bucket-9 { height: 98px; }
.trend-bar-fill.h-bucket-10 { height: 110px; }
.trend-bar-fill.h-bucket-11 { height: 122px; }
.trend-bar-fill.h-bucket-12 { height: 132px; }

.trend-label {
  display: block;
  margin-top: 8px;
  color: var(--tiku-muted);
  font-size: 18px;
  line-height: 1.2;
}

.progress-track {
  width: 100%;
  height: 12px;
  margin-top: 16px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--tiku-border);
}

.progress-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--tiku-green);
}

.progress-fill.w-bucket-0 { width: 0; }
.progress-fill.w-bucket-1 { width: 10%; }
.progress-fill.w-bucket-2 { width: 20%; }
.progress-fill.w-bucket-3 { width: 30%; }
.progress-fill.w-bucket-4 { width: 40%; }
.progress-fill.w-bucket-5 { width: 50%; }
.progress-fill.w-bucket-6 { width: 60%; }
.progress-fill.w-bucket-7 { width: 70%; }
.progress-fill.w-bucket-8 { width: 80%; }
.progress-fill.w-bucket-9 { width: 90%; }
.progress-fill.w-bucket-10 { width: 100%; }

.handbook-entry-body {
  margin-top: 14px;
}

.handbook-search-panel {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.handbook-search-panel .input {
  flex: 1;
  min-width: 0;
}

.handbook-search-panel .secondary-button {
  flex: 0 0 116px;
  min-width: 116px;
}

.handbook-outline {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.handbook-outline-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  max-width: 360px;
  min-height: 58px;
  padding: 0 16px;
  border: 1px solid var(--tiku-border);
  border-radius: 999px;
  background: #fff;
}

.handbook-outline-chip.active {
  border-color: var(--tiku-primary);
  background: var(--tiku-primary-soft);
}

.handbook-outline-index {
  flex: 0 0 auto;
  color: #94a3b8;
  font-size: 20px;
  font-weight: 820;
}

.handbook-outline-title {
  min-width: 0;
  color: #0f172a;
  font-size: 22px;
  font-weight: 760;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.handbook-entry-list {
  margin-top: 16px;
}

.handbook-entry-row.active {
  border-color: #93c5fd;
}

.handbook-search-snippet {
  margin-top: 10px;
  padding: 14px 16px;
  border: 1px solid var(--tiku-border);
  border-radius: 18px;
  background: var(--tiku-card-soft);
  color: #475569;
  font-size: 22px;
  line-height: 1.55;
  word-break: break-word;
}

.handbook-highlight {
  border-radius: 6px;
  background: #fef3c7;
  color: #92400e;
  font-weight: 820;
}

.report-sub-result {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--tiku-border-strong);
}

.answer-sheet {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.student-page > .answer-sheet,
.quiet-panel + .answer-sheet {
  padding: 18px;
  border: 1px solid var(--tiku-border);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--tiku-shadow);
}

.answer-card {
  min-width: 0;
  height: 58px;
  border: 1px solid var(--tiku-border);
  border-radius: 16px;
  background: #fff;
  color: #334155;
  font-size: 22px;
  font-weight: 800;
  line-height: 58px;
}

.answer-card.current {
  border-color: var(--tiku-primary);
  background: var(--tiku-primary-soft);
  color: var(--tiku-primary);
}

.answer-card.answered {
  border-color: #bbf7d0;
  background: #ecfdf5;
  color: #047857;
}

.answer-card.wrong {
  border-color: #fecaca;
  background: #fff1f2;
  color: #be123c;
}

.break-text {
  word-break: break-all;
  overflow-wrap: anywhere;
}

.vocabulary-page .student-topbar {
  margin-bottom: 20px;
}

.vocabulary-modebar {
  margin-top: 18px;
}

.vocabulary-overview-panel {
  border-color: #bbf7d0;
  background: linear-gradient(135deg, #ecfdf5, #fff);
}

.vocabulary-stats-grid {
  margin-top: 18px;
}

.vocabulary-plan-line {
  margin-top: 16px;
}

.vocabulary-mastery-track {
  margin-top: 18px;
}

.vocabulary-study {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.vocabulary-progress {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.vocabulary-progress-track {
  width: 100%;
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--tiku-border);
}

.vocabulary-progress-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--tiku-primary);
  transition: width 180ms ease;
}

.vocabulary-card {
  min-height: 560px;
  padding: 32px;
  border: 1px solid var(--tiku-border);
  border-radius: 30px;
  background: #fff;
  box-shadow: var(--tiku-shadow);
}

.vocabulary-card.revealed {
  border-color: #bfdbfe;
  background: linear-gradient(135deg, #eff6ff, #fff);
}

.vocabulary-word {
  display: block;
  margin-top: 36px;
  color: #0f172a;
  font-size: 64px;
  font-weight: 850;
  line-height: 1.05;
  text-align: center;
  word-break: break-word;
}

.vocabulary-phonetic {
  display: block;
  margin-top: 16px;
  color: var(--tiku-muted);
  font-size: 28px;
  line-height: 1.3;
  text-align: center;
}

.vocabulary-card-actions {
  justify-content: center;
  margin-top: 26px;
}

.vocabulary-answer {
  margin-top: 34px;
  padding: 24px;
  border: 1px solid var(--tiku-border);
  border-radius: 22px;
  background: #fff;
}

.vocabulary-actions {
  justify-content: center;
}

.vocabulary-word-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.vocabulary-word-chip {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--tiku-border);
  border-radius: 20px;
  background: #fff;
}

.vocabulary-word-chip.active {
  border-color: var(--tiku-primary);
  background: var(--tiku-primary-soft);
}

.vocabulary-word-chip.favorite {
  border-color: #f59e0b;
}

.vocabulary-chip-word {
  display: block;
  color: #0f172a;
  font-size: 24px;
  font-weight: 820;
  line-height: 1.3;
  word-break: break-word;
}

.vocabulary-chip-meta {
  display: block;
  margin-top: 6px;
  color: #94a3b8;
  font-size: 20px;
}

.assets-page .list-stack {
  margin-top: 20px;
}

.asset-preview-panel {
  padding: 24px;
  border: 1px solid #bfdbfe;
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--tiku-shadow);
}

.asset-preview-frame {
  position: relative;
  min-height: 720px;
  overflow: hidden;
  border: 1px solid var(--tiku-border);
  border-radius: 22px;
  background: var(--tiku-card-soft);
}

.asset-preview-panel .toolbar {
  flex-wrap: wrap;
  overflow-x: visible;
}

.asset-preview-iframe {
  width: 100%;
  height: 720px;
  border: 0;
  background: #fff;
}

.asset-download-confirm {
  padding: 60px 36px;
}

.asset-watermark {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  color: #0f172a;
}

.asset-watermark.repeat {
  align-items: stretch;
  justify-content: stretch;
  background-image:
    repeating-linear-gradient(
      -28deg,
      transparent 0,
      transparent 92px,
      rgba(15, 23, 42, 0.08) 92px,
      rgba(15, 23, 42, 0.08) 94px,
      transparent 94px,
      transparent 168px
    );
}

.asset-watermark.diagonal .asset-watermark-text,
.asset-watermark.repeat .asset-watermark-text {
  transform: rotate(-24deg);
}

.asset-watermark.bottom-right {
  align-items: flex-end;
  justify-content: flex-end;
  padding: 24px;
}

.asset-watermark.center {
  align-items: center;
  justify-content: center;
}

.asset-watermark-text {
  max-width: 86%;
  color: #0f172a;
  font-size: 32px;
  font-weight: 850;
  line-height: 1.35;
  text-align: center;
  word-break: break-word;
}

.asset-security-strip {
  margin-top: 16px;
  padding: 18px;
  border: 1px solid var(--tiku-border);
  border-radius: 18px;
  background: var(--tiku-card-soft);
}

.scoreline-filter-panel {
  padding: 24px;
  border: 1px solid var(--tiku-border);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--tiku-shadow);
}

.scoreline-filter-group {
  margin-top: 18px;
}

.scoreline-filter-label {
  display: block;
  margin-bottom: 10px;
  color: #334155;
  font-size: 22px;
  font-weight: 820;
  line-height: 1.25;
}

.scoreline-chip-row {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.scoreline-chip-row.compact {
  flex-wrap: wrap;
  overflow-x: visible;
  padding-bottom: 0;
}

.scoreline-chip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  max-width: 320px;
  min-width: 112px;
  height: 58px;
  padding: 0 16px;
  border: 1px solid var(--tiku-border);
  border-radius: 999px;
  background: var(--tiku-card-soft);
}

.scoreline-chip.small {
  min-width: 96px;
  height: 52px;
  padding: 0 14px;
}

.scoreline-chip.active {
  border-color: var(--tiku-primary);
  background: var(--tiku-primary-soft);
}

.scoreline-chip.warn {
  border-color: #f59e0b;
  background: #fffbeb;
}

.scoreline-chip-text {
  min-width: 0;
  color: #0f172a;
  font-size: 22px;
  font-weight: 760;
  line-height: 1.25;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scoreline-chip.active .scoreline-chip-text {
  color: var(--tiku-primary);
}

.scoreline-field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.scoreline-field-filter {
  min-width: 0;
}

.scoreline-input {
  box-sizing: border-box;
  height: 64px;
  font-size: 24px;
}

.scoreline-search-button {
  margin-top: 20px;
}

.scoreline-trend-strip {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.scoreline-trend-item {
  flex: 0 0 230px;
  min-height: 116px;
  padding: 18px;
  border: 1px solid #bfdbfe;
  border-radius: 22px;
  background: linear-gradient(135deg, #eff6ff, #fff);
}

.scoreline-trend-year {
  display: block;
  color: var(--tiku-primary);
  font-size: 24px;
  font-weight: 850;
  line-height: 1.25;
}

.scoreline-trend-value {
  display: block;
  margin-top: 8px;
  color: #334155;
  font-size: 20px;
  line-height: 1.35;
  word-break: break-word;
}

.scoreline-field-chip-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.scoreline-field-chip {
  min-width: 0;
  min-height: 74px;
  padding: 12px 14px;
  border: 1px solid var(--tiku-border);
  border-radius: 18px;
  background: var(--tiku-card-soft);
}

.scoreline-field-name {
  display: block;
  color: var(--tiku-muted);
  font-size: 19px;
  line-height: 1.25;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scoreline-field-value {
  display: block;
  margin-top: 4px;
  color: #0f172a;
  font-size: 23px;
  font-weight: 820;
  line-height: 1.25;
  word-break: break-word;
}

@media (max-width: 640px) {
  .scoreline-field-grid,
  .scoreline-field-chip-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.points-list {
  gap: 16px;
}

.points-list .list-row {
  border-color: #bfdbfe;
  background: linear-gradient(135deg, #eff6ff, #fff);
}

.points-list .list-row:nth-child(2n) {
  border-color: #bbf7d0;
  background: linear-gradient(135deg, #ecfdf5, #fff);
}

.scoreline-page .student-topbar {
  align-items: flex-start;
}

.scoreline-page .student-title {
  font-size: 40px;
}

.scoreline-page .secondary-button {
  flex: 0 0 auto;
}

/* Legacy web visual polish shared by student sub-pages. */
.student-page:not(.login-page) {
  background:
    linear-gradient(to right, rgba(15, 23, 42, 0.032) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.032) 1px, transparent 1px),
    #f4f6f9;
  background-size: 40px 40px;
}

.student-topbar {
  padding: 4px 0 2px;
}

.student-kicker {
  color: #1152d4;
  font-size: 18px;
  font-weight: 900;
}

.student-title {
  color: #111827;
  font-size: 36px;
  font-weight: 950;
}

.student-subtitle {
  max-width: 820px;
  color: #64748b;
  font-size: 22px;
}

.section-block,
.section {
  margin-top: 28px;
}

.section-heading,
.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: #111827;
  font-size: 26px;
  font-weight: 920;
}

.section-heading::before,
.section-title::before {
  content: "";
  width: 8px;
  height: 24px;
  border-radius: 999px;
  background: #1152d4;
}

.quiet-panel,
.report-panel,
.metric,
.list-row,
.profile-card,
.asset-preview-panel,
.scoreline-filter-panel,
.trend-chart {
  border-color: #f1f5f9;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.quiet-panel,
.report-panel {
  padding: 24px;
}

.list-row {
  position: relative;
  padding: 18px 20px;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease;
}

.list-row:nth-child(3n + 1),
.list-row:nth-child(3n + 2),
.list-row:nth-child(3n) {
  border-color: #f1f5f9;
}

.list-row.active {
  border-color: #bfdbfe;
  background: #eff6ff;
  box-shadow: 0 8px 18px rgba(17, 82, 212, 0.08);
}

.row-main {
  color: #111827;
  font-size: 25px;
  font-weight: 850;
}

.row-meta {
  color: #64748b;
  font-size: 20px;
}

.metric {
  min-height: 116px;
  padding: 20px;
}

.compact-metric {
  min-height: 96px;
  padding: 16px;
}

.metric-value {
  color: #111827;
  font-size: 31px;
  font-weight: 950;
}

.metric-label {
  color: #94a3b8;
  font-size: 18px;
  font-weight: 760;
}

.primary-button,
.secondary-button,
.pill-button,
.danger-button {
  height: 56px;
  border-radius: 12px;
  font-size: 21px;
  font-weight: 850;
  line-height: 56px;
}

.primary-button {
  background: #1152d4;
  box-shadow: 0 8px 18px rgba(17, 82, 212, 0.16);
}

.secondary-button,
.pill-button {
  border-color: #e5e7eb;
  color: #475569;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.03);
}

.secondary-button.active,
.pill-button.active {
  border-color: #1152d4;
  background: #eff6ff;
  color: #1152d4;
}

.danger-button {
  border-color: #fecaca;
  background: #fff1f2;
  color: #dc2626;
}

.status-badge {
  min-height: 32px;
  padding: 0 10px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 850;
}

.input,
.textarea {
  border-color: #e5e7eb;
  border-radius: 12px;
  background: #fff;
  font-size: 22px;
}

.empty-state {
  border-color: #dbeafe;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.78);
  color: #64748b;
  font-size: 21px;
}

.catalog-page .toolbar {
  padding: 14px;
  border: 1px solid #f1f5f9;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.catalog-page .grid-two .metric {
  min-height: 156px;
  border-left: 4px solid #1152d4;
}

.catalog-page .grid-two .metric:nth-child(2n) {
  border-left-color: #10b981;
}

.catalog-page .list-row::after,
.review-page .list-row::after,
.assets-page .list-row::after,
.video-page .list-row::after {
  content: "›";
  position: absolute;
  right: 18px;
  top: 50%;
  color: #cbd5e1;
  font-size: 34px;
  font-weight: 400;
  transform: translateY(-50%);
}

.catalog-page .list-row,
.assets-page .list-row {
  padding-right: 52px;
}

.practice-page {
  max-width: 960px;
}

.practice-page .student-topbar {
  align-items: flex-start;
}

.practice-page .student-title {
  font-size: 32px;
}

.practice-page > .quiet-panel:first-of-type {
  border-color: #bfdbfe;
  background: linear-gradient(135deg, #eff6ff, #fff);
}

.practice-page .list-stack > .quiet-panel:first-child {
  padding: 26px;
  border-radius: 18px;
}

.practice-page .list-stack > .quiet-panel:first-child .rich-paragraph {
  color: #111827;
  font-size: 30px;
  font-weight: 760;
  line-height: 1.7;
}

.practice-page .list-row {
  padding: 16px;
  border-width: 2px;
  border-color: #f3f4f6;
  border-radius: 14px;
  background: rgba(248, 250, 252, 0.72);
  box-shadow: none;
}

.practice-page .list-row.active {
  border-color: #bfdbfe;
  background: rgba(239, 246, 255, 0.9);
}

.practice-page .option-prefix {
  flex-basis: 36px;
  width: 36px;
  height: 36px;
  border: 1px solid #e5e7eb;
  border-radius: 999px;
  background: #fff;
  color: #64748b;
  font-size: 18px;
  line-height: 36px;
}

.practice-page .list-row.active .option-prefix {
  border-color: #1152d4;
  background: #1152d4;
  color: #fff;
}

.practice-page .answer-detail,
.reports-page .answer-detail {
  border-color: #bbf7d0;
  background: linear-gradient(135deg, #ecfdf5, #fff);
}

.practice-page .answer-detail-label,
.reports-page .answer-detail-label {
  color: #047857;
}

.answer-sheet {
  gap: 10px;
  padding: 16px;
  border: 1px solid #f1f5f9;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.answer-card {
  height: 46px;
  border-radius: 12px;
  font-size: 18px;
  line-height: 46px;
}

.reports-page .report-panel,
.checkout-page .quiet-panel,
.profile-page .profile-card {
  border-color: #bfdbfe;
  background: linear-gradient(135deg, #eff6ff, #fff 74%);
}

.reports-page .report-panel > .metric-value,
.checkout-page .amount-text {
  color: #1152d4;
  font-size: 42px;
  font-weight: 950;
}

.checkout-page .list-row.active {
  border-color: #1152d4;
  background: linear-gradient(135deg, #eff6ff, #fff);
}

.checkout-page .list-row.active::before {
  content: "推荐";
  position: absolute;
  right: 18px;
  top: 16px;
  padding: 3px 9px;
  border-radius: 7px;
  background: #facc15;
  color: #1f2937;
  font-size: 15px;
  font-weight: 900;
}

.profile-page > .grid-two {
  margin-top: 18px;
}

.profile-avatar {
  border-radius: 999px;
}

.avatar-choice {
  border-radius: 14px;
  background: #fff;
}

.trend-chart {
  gap: 8px;
  padding: 18px;
}

.trend-bar-track {
  height: 112px;
}

.assets-page .list-row {
  min-height: 128px;
}

.asset-preview-frame {
  border-color: #f1f5f9;
  background: #f8fafc;
}

.asset-security-strip {
  border-color: #dbeafe;
  background: #eff6ff;
}

.notifications-page .notification-row.active,
.profile-page .notification-row.active {
  border-color: #bfdbfe;
  background: #eff6ff;
}

.notifications-page .notification-summary-grid .metric:first-child .metric-value,
.profile-page .notification-toolbar + .list-stack .notification-row.active .row-main {
  color: #1152d4;
}

.vocabulary-card {
  border-color: #f1f5f9;
  border-radius: 20px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.vocabulary-card.revealed {
  border-color: #bfdbfe;
  background: linear-gradient(135deg, #eff6ff, #fff);
}

.vocabulary-word {
  color: #111827;
  font-size: 58px;
  font-weight: 950;
}

.vocabulary-answer {
  border-color: #f1f5f9;
  border-radius: 16px;
  background: #f8fafc;
}

.home-page .topbar {
  padding: 2px 0 0;
}

.home-page .brand {
  color: #111827;
  letter-spacing: 0;
}

.home-page .subline {
  color: #94a3b8;
}

.home-page .hero-band {
  border-radius: 24px;
}

.home-page .home-stat-grid {
  gap: 16px;
}

.home-page .home-stat {
  border-color: #f1f5f9;
  border-radius: 16px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.home-page .entry-tile {
  border-radius: 24px;
}

.handbook-page .student-subtitle,
.ai-school-page .student-subtitle,
.order-detail-page .student-subtitle,
.region-page .student-subtitle {
  max-width: 720px;
}

.handbook-page .handbook-search-panel,
.ai-school-page .list-stack,
.order-detail-page .quiet-panel,
.region-page .list-stack {
  border: 1px solid #f1f5f9;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.handbook-page .handbook-search-panel {
  padding: 14px;
}

.handbook-page .handbook-outline {
  gap: 10px;
  margin: 16px 0;
  padding: 14px;
  border: 1px solid #f1f5f9;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.handbook-page .handbook-outline-chip {
  min-height: 44px;
  border-radius: 12px;
  background: #f8fafc;
  color: #475569;
}

.handbook-page .handbook-outline-chip.active {
  background: #1e293b;
  color: #fff;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
}

.handbook-page .handbook-outline-index {
  color: inherit;
  font-weight: 900;
}

.handbook-page .handbook-entry-row {
  border-left: 4px solid #1152d4;
}

.handbook-page .handbook-entry-row.active {
  border-left-color: #10b981;
}

.handbook-page .handbook-search-snippet {
  margin-top: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #f8fafc;
  color: #64748b;
  font-size: 20px;
  line-height: 1.6;
}

.handbook-page .handbook-highlight {
  border-radius: 5px;
  background: #fef3c7;
  color: #92400e;
  font-weight: 900;
}

.handbook-page .handbook-entry-body {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid #f1f5f9;
}

.ai-school-page .list-stack {
  padding: 12px;
}

.ai-school-page .list-row {
  box-shadow: none;
}

.ai-school-page .list-row .taro-input,
.ai-school-page .list-row .taro-textarea {
  color: #111827;
  font-size: 22px;
}

.ai-school-page .hero-band {
  min-height: 220px;
  margin: 0 0 16px;
  border-radius: 24px;
  background: linear-gradient(135deg, #1152d4, #2563eb 58%, #60a5fa);
}

.ai-school-page .hero-title {
  font-size: 42px;
}

.ai-school-page .hero-copy {
  max-width: 760px;
}

.ai-school-page .toolbar.compact-toolbar {
  margin: 14px 0;
  padding: 14px;
  border: 1px solid #f1f5f9;
  border-radius: 16px;
  background: #fff;
}

.ai-school-page .section:last-child .list-row::after,
.region-page .list-row::after {
  content: "›";
  position: absolute;
  right: 18px;
  top: 50%;
  color: #cbd5e1;
  font-size: 34px;
  transform: translateY(-50%);
}

.order-detail-page .quiet-panel {
  border-color: #bfdbfe;
  background: linear-gradient(135deg, #eff6ff, #fff 72%);
}

.order-detail-page .amount-text {
  color: #1152d4;
  font-size: 44px;
  font-weight: 950;
}

.order-detail-page .checkout-actions {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid #dbeafe;
}

.order-detail-page .list-row {
  min-height: 106px;
}

.region-page {
  max-width: 880px;
}

.region-page .list-stack {
  padding: 12px;
}

.region-page .list-row {
  min-height: 112px;
  padding: 20px 56px 20px 18px;
  border-left: 4px solid #1152d4;
}

.region-page .list-row:nth-child(2n) {
  border-left-color: #10b981;
}

.region-page .list-row:nth-child(3n) {
  border-left-color: #f59e0b;
}

.region-page .list-row.active {
  border-color: #1152d4;
  background: linear-gradient(135deg, #eff6ff, #fff);
}

.region-page .list-row.active::before {
  content: "当前";
  position: absolute;
  right: 50px;
  top: 16px;
  padding: 3px 9px;
  border-radius: 7px;
  background: #facc15;
  color: #1f2937;
  font-size: 15px;
  font-weight: 900;
}

.notifications-page .notification-row,
.review-page .list-row,
.video-page .list-row {
  border-left: 4px solid #1152d4;
}

.notifications-page .notification-row:nth-child(2n),
.review-page .list-row:nth-child(2n),
.video-page .list-row:nth-child(2n) {
  border-left-color: #10b981;
}

.notifications-page .notification-row:nth-child(3n),
.review-page .list-row:nth-child(3n),
.video-page .list-row:nth-child(3n) {
  border-left-color: #f59e0b;
}

.checkout-page .quiet-panel,
.reports-page .report-panel,
.profile-page .profile-card,
.vocabulary-overview-panel,
.scoreline-filter-panel {
  overflow: hidden;
}

.checkout-page .quiet-panel::before,
.reports-page .report-panel::before,
.profile-page .profile-card::before,
.vocabulary-overview-panel::before,
.scoreline-filter-panel::before {
  content: "";
  display: block;
  width: 56px;
  height: 4px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: #1152d4;
}

.assets-page .asset-preview-panel,
.scoreline-page .scoreline-filter-panel,
.vocabulary-page .vocabulary-card,
.handbook-page .handbook-search-panel {
  border-top: 4px solid #1152d4;
}

.video-page .video-frame {
  border-radius: 16px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

.student-page .toolbar::-webkit-scrollbar,
.scoreline-chip-row::-webkit-scrollbar,
.handbook-outline::-webkit-scrollbar {
  height: 6px;
}

.student-page .toolbar::-webkit-scrollbar-thumb,
.scoreline-chip-row::-webkit-scrollbar-thumb,
.handbook-outline::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: #cbd5e1;
}

@media (min-width: 900px) {
  .student-page {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 36px;
  }

  .student-topbar {
    margin-bottom: 28px;
  }

  .student-title {
    font-size: 42px;
  }

  .login-page {
    grid-template-columns: minmax(0, 1fr) 430px;
    align-items: stretch;
    max-width: 1040px;
    gap: 0;
    padding: 56px;
  }

  .login-hero {
    min-height: 620px;
    border-radius: 24px 0 0 24px;
  }

  .login-title {
    margin-top: 12px;
    font-size: 48px;
  }

  .login-card {
    justify-content: center;
    min-height: 620px;
    border-left: 0;
    border-radius: 0 24px 24px 0;
    padding: 40px;
  }

  .login-page-admin .login-hero {
    border-radius: 24px 0 0 24px;
  }

  .login-card .input {
    height: 52px;
    font-size: 15px;
  }

  .login-card .primary-button,
  .login-card .secondary-button {
    height: 46px;
    font-size: 14px;
    line-height: 46px;
  }

  .student-topbar {
    padding: 20px 24px;
    border: 1px solid #f1f5f9;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  }

  .student-page > .toolbar,
  .student-page > .section-block > .toolbar {
    padding: 14px;
    border: 1px solid var(--tiku-border);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  }

  .quiet-panel,
  .report-panel,
  .scoreline-filter-panel,
  .asset-preview-panel {
    border-radius: 18px;
  }

  .answer-sheet {
    grid-template-columns: repeat(10, minmax(0, 1fr));
  }

  .toolbar.wrap {
    gap: 14px;
  }

  .student-page .section-block.grid-two,
  .student-page > .grid-two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .vocabulary-word-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .asset-preview-panel {
    padding: 30px;
  }

  .profile-page > .grid-two,
  .reports-page .grid-two,
  .notifications-page .notification-summary-grid,
  .vocabulary-stats-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .student-page {
    padding: 20px;
  }

  .student-title {
    font-size: 34px;
  }

  .student-subtitle,
  .row-meta {
    font-size: 21px;
  }

  .student-topbar,
  .amount-row,
  .split-row {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar,
  .toolbar.wrap,
  .checkout-toolbar,
  .handbook-search-panel {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .grid-two,
  .vocabulary-word-grid,
  .avatar-choice-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .primary-button,
  .secondary-button,
  .pill-button,
  .danger-button {
    min-width: 0;
    flex: 1 1 150px;
  }

  .login-card .toolbar .secondary-button {
    flex: 0 0 86px;
  }

  .asset-preview-frame,
  .asset-preview-iframe {
    min-height: 520px;
    height: 520px;
  }

  .practice-page .toolbar.wrap {
    gap: 10px;
  }

  .reports-page .report-panel > .metric-value,
  .checkout-page .amount-text {
    font-size: 36px;
  }
}