/*
 * Learning 作业与学习旅程的生产样式。
 * 运行状态来自 Learning Backend；这里只负责观猹学社阅读壳中的统一呈现。
 */

watcha-learning-live,
watcha-learning-course {
  display: block;
}

watcha-learning-course[part='tasks'],
watcha-learning-task {
  display: block;
  margin: 28px 0 6px;
}

watcha-learning-enrollment {
  display: block;
  margin: 24px 0 8px;
}

watcha-learning-referral {
  display: block;
  margin: 34px 0 8px;
}

watcha-learning-seko-pack {
  display: block;
  margin: 32px 0 8px;
}

:is(watcha-learning-task, watcha-learning-referral, watcha-learning-course):empty {
  display: none;
  margin: 0;
}

:is(watcha-learning-task, watcha-learning-enrollment, watcha-learning-referral, watcha-learning-seko-pack, watcha-learning-live)[data-learning-mounted='true'] > [data-learning-fallback] {
  display: none;
}

.learning-seko-pack {
  margin: 28px 0 34px;
  padding: 28px 30px 24px;
  border: 1px solid var(--watcha-line);
  border-radius: var(--wiki-radius-lg);
  background: color-mix(in srgb, var(--watcha-soft) 55%, var(--paper-2));
}

.learning-seko-pack__head {
  max-width: 620px;
}

.learning-seko-pack__head small {
  color: var(--watcha-deep);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  font-weight: 650;
  line-height: var(--lh-ui);
  letter-spacing: 0.08em;
}

.wiki-article .learning-seko-pack__head h3 {
  margin: 6px 0 5px;
  font-size: var(--t-section);
  line-height: var(--lh-title);
}

.learning-seko-pack__head p,
.learning-seko-pack__offer p {
  color: var(--ink-2);
  font-size: var(--t-ui);
  line-height: var(--lh-comp);
}

.learning-seko-pack__head p {
  margin: 0;
}

.learning-seko-pack__benefits {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.learning-seko-pack__offer {
  display: flex;
  min-width: 0;
  min-height: 270px;
  align-items: center;
  flex-direction: column;
  padding: 24px 18px 18px;
  border: 1px solid var(--watcha-line);
  border-radius: var(--wiki-radius-md);
  background: color-mix(in srgb, var(--paper-2) 86%, transparent);
  text-align: center;
}

.learning-seko-pack__value {
  display: block;
  margin: 0;
  color: #d2a526;
  font-family: var(--font-gara);
  font-size: clamp(42px, 5vw, 58px);
  font-weight: 700;
  line-height: 1;
}

.wiki-article .learning-seko-pack__offer h4 {
  margin: 10px 0 6px;
  font-size: var(--t-cardtitle);
  line-height: var(--lh-title);
}

.learning-seko-pack__badge {
  margin: 8px 0 -3px;
  padding: 3px 11px;
  border: 1px solid var(--watcha-line);
  border-radius: 999px;
  color: var(--watcha-deep);
  background: var(--watcha-soft);
  font-size: var(--t-mono);
  font-weight: 700;
  line-height: var(--lh-ui);
}

.learning-seko-pack__offer > p {
  min-height: 3.2em;
  margin: 0 0 16px;
}

.learning-seko-pack__offer > a,
.learning-seko-pack__secondary,
.learning-seko-pack__field button {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid var(--ink);
  border-radius: 7px;
  color: var(--paper-2);
  background: var(--ink);
  font: inherit;
  font-size: var(--t-ui);
  font-weight: 700;
  line-height: var(--lh-ui);
  text-decoration: none;
  cursor: pointer;
}

.learning-seko-pack__offer > a,
.learning-seko-pack__offer > .learning-seko-pack__secondary {
  width: min(100%, 190px);
  margin-top: auto;
}

.learning-seko-pack__secondary {
  color: var(--ink);
  background: transparent;
}

.learning-seko-pack__offer > a:hover,
.learning-seko-pack__field button:hover {
  border-color: var(--watcha-deep);
  color: var(--paper-2);
  background: var(--watcha-deep);
  text-decoration: none;
}

.learning-seko-pack__secondary:hover {
  border-color: var(--watcha-deep);
  color: var(--watcha-deep);
  background: var(--paper-2);
  text-decoration: none;
}

.learning-seko-pack__secondary:disabled,
.learning-seko-pack__field button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.learning-seko-pack__claimed {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  color: var(--watcha-deep);
  font-size: var(--t-ui);
  font-weight: 700;
}

.learning-seko-pack__delay {
  margin-top: auto;
  color: var(--mut);
  font-size: var(--t-mono);
  line-height: var(--lh-ui);
}

.learning-seko-pack__divider {
  width: 100%;
  height: 1px;
  margin: 26px 0 20px;
  border: 0;
  background: var(--watcha-line);
}

.learning-seko-pack__binding > h4 {
  margin: 0 0 4px;
  color: var(--watcha-deep);
  font-size: var(--t-cardtitle);
}

.learning-seko-pack__binding > p {
  margin: 0;
  color: var(--ink-2);
  font-size: var(--t-ui);
  line-height: var(--lh-comp);
}

.learning-seko-pack__loading {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  margin-top: auto;
  color: var(--mut);
  font-size: var(--t-ui);
  line-height: 38px;
}

.learning-seko-pack__form {
  margin-top: 16px;
}

.learning-seko-pack__field {
  display: flex;
  gap: 8px;
}

.learning-seko-pack__field input {
  width: auto;
  min-width: 0;
  flex: 1 1 0;
  height: 40px;
  padding: 8px 11px;
  border: 1px solid var(--line-2);
  border-radius: 7px;
  color: var(--ink);
  background: var(--paper-2);
  font: inherit;
  font-size: var(--t-ui);
}

.learning-seko-pack__field button {
  flex: 0 0 auto;
  white-space: nowrap;
}

.learning-seko-pack__field input:focus {
  border-color: var(--watcha);
  outline: 2px solid color-mix(in srgb, var(--watcha) 24%, transparent);
  outline-offset: 0;
}

.learning-seko-pack__confirm {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  margin-top: 9px;
  color: var(--ink-2);
  font-size: var(--t-mono);
  line-height: var(--lh-ui);
  cursor: pointer;
}

.learning-seko-pack__confirm input {
  flex: none;
  margin-top: 3px;
  accent-color: var(--watcha-deep);
}

.learning-seko-pack__bound > p {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 16px 0 0;
  color: var(--ink-2);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-seko-pack__bound > p strong {
  overflow-wrap: anywhere;
}

.learning-seko-pack__notice {
  margin: 18px 0 0;
  color: var(--watcha-deep);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-seko-pack__notice[data-kind='error'] {
  color: var(--red);
}

.learning-seko-pack footer {
  margin-top: 20px;
  color: var(--mut);
  font-size: var(--t-mono);
  line-height: var(--lh-ui);
}

@media (max-width: 720px) {
  .learning-seko-pack {
    padding: 22px 20px 19px;
  }

  .learning-seko-pack__benefits {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .learning-seko-pack__offer {
    min-height: 245px;
    padding: 22px 18px 18px;
  }

  .learning-seko-pack__offer > p {
    min-height: 0;
  }

  .learning-seko-pack__field {
    align-items: stretch;
    flex-direction: column;
  }
}

.learning-enrollment {
  padding: 0;
}

.learning-enrollment__options {
  display: grid;
  grid-template-columns: minmax(0, 300px);
  align-items: stretch;
  gap: 14px;
  max-width: 720px;
}

.learning-enrollment__options.has-assistant {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.learning-enrollment__action,
.wiki-article .learning-enrollment__action {
  display: flex;
  width: 100%;
  min-width: 0;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 0;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  background: #fff;
  box-shadow: none;
  font-family: var(--font-sans);
  font-size: var(--t-ui);
  font-weight: 500;
  line-height: var(--lh-ui);
  text-align: left;
  text-decoration: none;
}

button.learning-enrollment__action {
  cursor: pointer;
}

button.learning-enrollment__action:hover {
  border-color: var(--watcha-line);
  color: var(--watcha-deep);
  background: #fff;
  box-shadow: none;
  text-decoration: none;
}

button.learning-enrollment__action:focus-visible {
  outline: 2px solid var(--watcha);
  outline-offset: 3px;
}

.learning-enrollment__action-copy {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.learning-enrollment__action-leading {
  display: grid;
  min-width: 0;
  grid-template-columns: 22px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
}

.learning-enrollment__action-icon {
  width: 22px;
  height: 22px;
  color: var(--watcha-deep);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.learning-enrollment__action-copy strong {
  color: currentColor;
  font-family: var(--font-serif);
  font-size: var(--t-cardtitle);
  font-weight: 700;
  line-height: var(--lh-title);
}

.learning-enrollment__action-copy small {
  color: var(--mut);
  font-family: var(--font-sans);
  font-size: var(--t-ui);
  font-weight: 400;
  line-height: var(--lh-ui);
}

.learning-enrollment__action-mark {
  flex: none;
  color: var(--watcha-deep);
  font-family: var(--font-mono);
  font-size: var(--t-ui);
  font-weight: 600;
}

.learning-enrollment__action--course:not(.is-complete, .is-muted) {
  color: var(--ink);
}

.learning-enrollment__action.is-complete {
  color: var(--watcha-deep);
}

.learning-enrollment__action.is-muted {
  color: var(--mut);
  font-family: var(--font-sans);
  font-size: var(--t-ui);
  font-weight: 500;
}

.course-enrollment-promo .learning-enrollment__options {
  max-width: none;
}

@media (max-width: 520px) {
  .learning-enrollment .learning-enrollment__options.has-assistant {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }
}

.learning-enrollment__state {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  margin: 0;
  padding: 0;
}

.learning-enrollment__state :is(h3, p) {
  display: block;
  margin: 0;
}

.wiki-article .learning-enrollment__state h3 {
  color: var(--ink);
  font-size: var(--t-cardtitle);
  line-height: var(--lh-title);
}

.learning-enrollment__state p {
  margin-top: 5px;
  color: var(--ink-2);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-enrollment__state[data-state='done'] {
  color: var(--watcha-deep);
}

.learning-enrollment :is(.learning-enrollment__state, footer) :is(button, a),
.learning-assignment__gate :is(a, button) {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  color: var(--paper-2);
  background: var(--ink);
  font: inherit;
  font-size: var(--t-ui);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.learning-enrollment :is(.learning-enrollment__state, footer) :is(button, a):hover,
.learning-assignment__gate :is(a, button):hover {
  border-color: var(--watcha-deep);
  color: var(--paper-2);
  background: var(--watcha-deep);
}

.learning-assignment__gate :is(a, button) {
  border-color: var(--line-2);
  color: var(--ink);
  background: var(--paper-2);
}

.learning-assignment__gate :is(a, button):hover {
  border-color: var(--watcha);
  color: var(--watcha-deep);
  background: var(--paper-2);
}

.learning-enrollment__loading {
  padding: 4px 0;
  color: var(--mut);
  font-size: var(--t-ui);
}

.learning-enrollment__loading p {
  margin: 0;
}

.learning-enrollment__form {
  margin: 0;
  padding: 0;
  background: transparent;
}

.learning-enrollment__form-head,
.learning-enrollment__form footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.learning-enrollment__form-head :is(h3, p) {
  display: block;
  margin: 0;
}

.wiki-article .learning-enrollment__form-head h3 {
  color: var(--ink);
  font-size: var(--t-cardtitle);
  line-height: var(--lh-title);
}

.learning-enrollment__form-head p {
  margin-top: 3px;
  color: var(--ink-2);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-enrollment__form-head > button {
  border: 0;
  color: var(--mut);
  background: transparent;
  font: inherit;
  font-size: var(--t-ui);
}

.learning-enrollment__form-head > button:hover {
  color: var(--ink);
}

.learning-enrollment__fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 13px 15px;
  margin: 18px 0;
}

.learning-enrollment__fields label {
  display: grid;
  min-width: 0;
  gap: 6px;
}

.learning-enrollment__fields label.is-wide {
  grid-column: 1 / -1;
}

.learning-enrollment__fields label > span {
  color: var(--ink-2);
  font-size: var(--t-ui);
  font-weight: 650;
}

.learning-enrollment__fields label > span small {
  margin-left: 6px;
  color: var(--mut);
  font-size: var(--t-mono);
  font-weight: 450;
}

.learning-enrollment__fields :is(input, select, textarea) {
  width: 100%;
  min-width: 0;
  min-height: 42px;
  padding: 9px 11px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  outline: none;
  color: var(--ink);
  background: var(--paper-2);
  font: inherit;
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-enrollment__fields textarea {
  resize: vertical;
}

.learning-enrollment__fields :is(input, select, textarea):focus {
  border-color: var(--ink-2);
}

.learning-enrollment__error {
  margin: 0 0 13px;
  color: var(--danger, #a54636);
  font-size: var(--t-ui);
}

.learning-enrollment__form footer {
  align-items: center;
  justify-content: flex-end;
  padding-top: 2px;
}

.learning-enrollment__form footer > button {
  border-color: var(--ink);
  color: var(--paper-2);
  background: var(--ink);
}

.learning-enrollment__form footer > button:disabled {
  cursor: wait;
  opacity: 0.58;
}

.learning-assistant__intro {
  display: grid;
  gap: 8px;
  margin: 0 0 17px;
  color: var(--ink-2);
}

.learning-assistant__intro p {
  margin: 0;
  white-space: pre-line;
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-assistant__intro img {
  display: block;
  width: auto;
  max-width: min(100%, 360px);
  max-height: 360px;
  object-fit: contain;
  border-radius: 8px;
}

.learning-assistant__status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 5px 9px;
  border: 1px solid var(--watcha-line);
  border-radius: 7px;
  color: var(--watcha-deep);
  background: var(--paper-2);
  font-size: var(--t-mono);
  white-space: nowrap;
}

.learning-assistant__field-group {
  min-width: 0;
  margin: 19px 0 0;
  padding: 0;
  border: 0;
}

.learning-assistant__field-group legend,
.learning-assistant__questions > label > span {
  color: var(--ink-2);
  font-size: var(--t-ui);
  font-weight: 650;
}

.learning-assistant__questions > label > span small {
  margin-left: 6px;
  color: var(--mut);
  font-size: var(--t-mono);
  font-weight: 450;
}

.learning-assistant__choices {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 18px;
  margin-top: 9px;
}

.learning-assistant__choices label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ink-2);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
  cursor: pointer;
}

.learning-assistant__choices input {
  width: 16px;
  height: 16px;
  accent-color: var(--watcha-deep);
}

.learning-assistant__questions {
  display: grid;
  gap: 15px;
  margin-top: 20px;
}

.learning-assistant__questions > label {
  display: grid;
  gap: 7px;
}

.learning-assistant__questions > label > :is(input, select, textarea) {
  width: 100%;
  min-width: 0;
  min-height: 42px;
  padding: 9px 11px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  outline: none;
  color: var(--ink);
  background: var(--paper-2);
  font: inherit;
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-assistant__questions textarea {
  resize: vertical;
}

.learning-assistant__questions > label > :is(input, select, textarea):focus {
  border-color: var(--ink-2);
}

.learning-enrollment-modal {
  position: fixed;
  inset: 0;
  z-index: 140;
  display: grid;
  padding: 24px;
  place-items: center;
}

.learning-enrollment-modal__mask {
  position: absolute;
  inset: 0;
  background: rgb(20 18 14 / 48%);
}

.learning-enrollment-modal__dialog {
  position: relative;
  display: flex;
  width: min(720px, calc(100vw - 48px));
  max-height: calc(100dvh - 48px);
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  background: var(--paper-2);
  box-shadow: 0 24px 72px rgb(20 18 14 / 18%);
}

.learning-enrollment-modal__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 24px 18px;
}

.learning-enrollment-modal__head :is(p, h2) {
  margin: 0;
}

.learning-enrollment-modal__head p {
  margin-bottom: 5px;
  color: var(--watcha-deep);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  line-height: var(--lh-ui);
  letter-spacing: 0.08em;
}

.learning-enrollment-modal__head h2,
.wiki-article .learning-enrollment-modal__head h2 {
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: var(--t-cardtitle);
  line-height: var(--lh-title);
}

.learning-enrollment-modal__head > button {
  display: inline-grid;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  color: var(--ink-2);
  background: transparent;
  place-items: center;
}

.learning-enrollment-modal__head > button:hover {
  border-color: var(--ink-2);
  color: var(--ink);
}

.learning-enrollment-modal__head svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.7;
}

.learning-enrollment-modal__tabs {
  display: flex;
  flex: none;
  gap: 4px;
  margin: 0 24px 16px;
  padding: 3px;
  border: 1px solid var(--line-2);
  border-radius: 9px;
  background: var(--card);
}

.learning-enrollment-modal__tabs button {
  min-height: 34px;
  flex: 1 1 0;
  border: 0;
  border-radius: 6px;
  color: var(--mut);
  background: transparent;
  font-family: var(--font-sans);
  font-size: var(--t-ui);
  font-weight: 600;
}

.learning-enrollment-modal__tabs button:hover {
  color: var(--ink);
}

.learning-enrollment-modal__tabs button[aria-selected='true'] {
  color: var(--watcha-deep);
  background: var(--paper-2);
}

.learning-enrollment-modal__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 0 24px 24px;
  scrollbar-width: thin;
  scrollbar-color: rgb(108 100 86 / 26%) transparent;
}

.learning-enrollment-modal__state {
  display: grid;
  gap: 7px;
  padding: 8px 0 4px;
}

.learning-enrollment-modal__state :is(strong, p) {
  margin: 0;
}

.learning-enrollment-modal__state strong {
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: var(--t-cardtitle);
}

.learning-enrollment-modal__state p {
  color: var(--ink-2);
  font-size: var(--t-ui);
  line-height: var(--lh-comp);
}

.learning-enrollment-modal__state :is(button, a) {
  width: fit-content;
  min-height: 34px;
  padding: 6px 11px;
  border: 1px solid var(--line-2);
  border-radius: 7px;
  color: var(--ink);
  background: transparent;
  font-size: var(--t-ui);
  text-decoration: none;
}

.learning-enrollment-modal__qr {
  display: grid;
  grid-template-columns: minmax(180px, 260px) minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  padding-bottom: 4px;
}

.learning-enrollment-modal__qr img {
  display: block;
  width: 100%;
  max-height: 340px;
  object-fit: contain;
}

.learning-enrollment-modal__qr :is(strong, p) {
  display: block;
  margin: 0;
}

.learning-enrollment-modal__qr strong {
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: var(--t-cardtitle);
}

.learning-enrollment-modal__qr p {
  margin-top: 7px;
  color: var(--ink-2);
  font-size: var(--t-ui);
  line-height: var(--lh-comp);
}

html.learning-enrollment-open,
html.learning-enrollment-open body {
  overflow: hidden;
}

.learning-enrollment-modal__body::-webkit-scrollbar {
  width: 6px;
}

.learning-enrollment-modal__body::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgb(108 100 86 / 26%);
}

.learning-enrollment-modal__body .learning-enrollment__fields {
  margin-top: 0;
}

.learning-enrollment-modal__body footer > button {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  color: var(--paper-2);
  background: var(--ink);
  font: inherit;
  font-size: var(--t-ui);
  font-weight: 700;
}

.learning-enrollment-modal__body footer > button:hover {
  border-color: var(--watcha-deep);
  background: var(--watcha-deep);
}

.learning-enrollment-modal__body footer > button:disabled {
  cursor: wait;
  opacity: 0.58;
}

.learning-referral {
  padding: 28px;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  background: var(--paper-2);
  scroll-margin-top: 120px;
}

.learning-referral__head {
  display: block;
}

.learning-referral__intro {
  min-width: 0;
}

.learning-referral__intro > small {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 8px;
  color: var(--verm, #c83c28);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: 0.06em;
}

.learning-referral__intro > small > span {
  color: var(--watcha);
  font-size: 9px;
}

.wiki-article .learning-referral__intro h3 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(22px, 2.4vw, 27px);
  line-height: var(--lh-title);
}

.learning-referral__intro > p {
  max-width: 660px;
  margin: 9px 0 0;
  color: var(--mut);
  font-size: var(--t-ui);
  line-height: var(--lh-body);
}

.learning-referral__invite-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 22px;
}

.learning-referral__invite-bar > p {
  margin: 0;
  color: var(--ink-2);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-referral__invite-bar > p strong {
  color: var(--watcha-deep);
  font-family: var(--font-serif);
  font-size: var(--t-cardtitle);
}

.learning-referral__invite-bar > :is(button, a),
.learning-referral__invite-actions > :is(button, a) {
  display: inline-flex;
  min-height: 40px;
  flex: none;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 14px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  color: var(--paper-2);
  background: var(--ink);
  font: inherit;
  font-size: var(--t-ui);
  font-weight: 650;
  cursor: pointer;
  text-decoration: none;
}

.learning-referral__invite-bar > :is(button, a):hover,
.learning-referral__invite-actions > :is(button, a):hover {
  border-color: var(--watcha-deep);
  background: var(--watcha-deep);
  text-decoration: none;
}

.learning-referral__invite-bar > button:disabled,
.learning-referral__invite-actions > button:disabled {
  cursor: wait;
  opacity: 0.58;
}

.learning-referral__invite-bar > .learning-referral__notice {
  flex-basis: 100%;
}

.learning-referral__invite-actions {
  display: flex;
  flex: none;
  gap: 8px;
}

.learning-referral__invite-actions > .is-secondary {
  border-color: var(--line-2);
  color: var(--ink);
  background: transparent;
}

.learning-referral__invite-actions > .is-secondary:hover {
  border-color: var(--ink-2);
  color: var(--ink);
  background: var(--paper-3, var(--paper-2));
}

.learning-referral__milestones,
.learning-referral__rank-rewards {
  margin-top: 30px;
}

.wiki-article :is(.learning-referral__milestones, .learning-referral__rank-rewards) h4 {
  margin: 0;
  color: var(--ink);
  font-size: var(--t-comp);
  line-height: var(--lh-title);
}

.learning-referral__section-number {
  display: inline-block;
  margin-right: 9px;
  color: var(--verm, #c83c28);
  font-family: var(--font-serif);
  font-size: 0.72em;
  font-style: italic;
  font-weight: 650;
}

.learning-referral__section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.learning-referral__section-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.learning-referral__section-actions > span {
  color: var(--mut);
  font-size: var(--t-mono);
}

.learning-referral__milestone-scroll {
  overflow-x: auto;
  padding: 4px 2px 2px;
  scrollbar-width: none;
}

.learning-referral__milestone-scroll::-webkit-scrollbar {
  display: none;
}

.learning-referral__milestone-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  min-width: 560px;
  gap: 0;
}

.learning-referral__milestone-rail {
  position: absolute;
  top: 42px;
  right: 7%;
  left: 7%;
  height: 5px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--watcha) 18%, var(--paper-3, #f4f0e8));
}

.learning-referral__milestones article,
.learning-referral__rank-rewards article {
  min-width: 0;
}

.learning-referral__milestones article {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  flex-direction: column;
  text-align: center;
}

.learning-referral__milestones article > strong {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 5px 6px;
  border: 0;
  color: var(--ink-2);
  background: transparent;
  font-size: var(--t-mono);
  line-height: 1.2;
  white-space: nowrap;
}

.learning-referral__milestones article > strong > img {
  display: block;
  width: 17px;
  height: 17px;
  border: 0;
  border-radius: 0;
  background: transparent;
  object-fit: contain;
}

.learning-referral__milestones article > i {
  width: 12px;
  height: 12px;
  margin-top: 4px;
  border: 3px solid var(--paper-2);
  border-radius: 50%;
  background: var(--line-2);
}

.learning-referral__milestones article > span {
  display: block;
  margin-top: 8px;
  color: var(--ink-2);
  font-size: var(--t-mono);
  line-height: var(--lh-ui);
}

.learning-referral__milestones article.is-reached > strong {
  color: var(--watcha-deep);
}

.learning-referral__milestones article.is-reached > i {
  background: var(--watcha);
}

.learning-referral__milestones > p {
  margin: 14px 0 0;
  color: var(--mut);
  font-size: var(--t-mono);
  line-height: var(--lh-ui);
}

.learning-referral__rank-rewards > div {
  display: grid;
  min-width: 620px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: end;
  gap: 8px;
  margin-top: 14px;
}

.learning-referral__rank-rewards {
  overflow-x: auto;
  scrollbar-width: none;
}

.learning-referral__rank-rewards::-webkit-scrollbar {
  display: none;
}

.learning-referral__rank-rewards article {
  display: flex;
  min-height: 232px;
  justify-content: flex-end;
  flex-direction: column;
  padding: 0;
  background: transparent;
  text-align: center;
}

.learning-referral__prize-rank {
  display: block;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 21px;
  font-style: italic;
  font-weight: 700;
  line-height: 1;
}

.learning-referral__prize-media {
  display: grid;
  width: 100%;
  height: 108px;
  align-items: end;
  justify-items: center;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.wiki-article .learning-referral__rank-rewards img {
  display: block;
  width: min(100%, 138px);
  height: 100px;
  border: 0;
  border-radius: 0;
  background: transparent;
  object-fit: contain;
}

.learning-referral__prize-copy {
  display: grid;
  width: 100%;
  min-height: 112px;
  align-content: center;
  gap: 9px;
  padding: 12px 8px;
  border-radius: 10px 10px 2px 2px;
  background: rgb(235 243 225);
}

.learning-referral__rank-rewards article:nth-child(2) .learning-referral__prize-copy {
  min-height: 96px;
}

.learning-referral__rank-rewards article:nth-child(3) .learning-referral__prize-copy {
  min-height: 80px;
}

.learning-referral__rank-rewards article:nth-child(4) .learning-referral__prize-copy {
  min-height: 64px;
}

.learning-referral__rank-rewards article strong {
  display: block;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--t-mono);
  font-weight: 650;
  line-height: var(--lh-ui);
}

.learning-referral__lottery {
  display: grid;
  grid-template-columns: auto minmax(150px, 1fr) auto;
  align-items: center;
  gap: 24px;
  margin-top: 22px;
  padding: 22px 24px;
  border-radius: 10px;
  color: var(--paper-2);
  background: var(--ink);
}

.learning-referral__lottery-meter {
  display: grid;
  min-width: 112px;
  gap: 4px;
}

.learning-referral__lottery-meter > small {
  color: rgb(255 252 244 / 64%);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: 0.08em;
}

.learning-referral__lottery-meter > p {
  display: flex;
  align-items: baseline;
  gap: 7px;
  margin: 0;
}

.learning-referral__lottery-meter strong {
  color: #f16a51;
  font-family: var(--font-serif);
  font-size: 46px;
  font-style: italic;
  line-height: 0.92;
}

.learning-referral__lottery-meter span {
  color: rgb(255 252 244 / 82%);
  font-size: var(--t-ui);
}

.learning-referral__lottery-status {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 18px;
  margin: 0;
  color: rgb(255 252 244 / 72%);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-referral__lottery-status strong {
  color: var(--paper-2);
  font-family: var(--font-serif);
  font-size: var(--t-cardtitle);
}

.learning-referral__lottery-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
}

.learning-referral__lottery-actions > :is(button, a) {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid rgb(255 252 244 / 30%);
  border-radius: 8px;
  color: var(--paper-2);
  background: transparent;
  font: inherit;
  font-size: var(--t-ui);
  font-weight: 650;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.learning-referral__lottery-actions > :is(button, a):hover {
  border-color: rgb(255 252 244 / 62%);
  background: rgb(255 252 244 / 8%);
  text-decoration: none;
}

.learning-referral__lottery-actions > .is-primary {
  border-color: var(--paper-2);
  color: var(--ink);
  background: var(--paper-2);
}

.learning-referral__lottery.has-chance .learning-referral__lottery-actions > .is-primary {
  border-color: #e85b41;
  color: #fff;
  background: #cf3f2a;
}

.learning-referral__lottery-actions > :is(button, a).is-primary:hover {
  border-color: var(--watcha-soft);
  background: var(--watcha-soft);
}

.learning-referral__lottery.has-chance .learning-referral__lottery-actions > .is-primary:hover {
  border-color: #f16a51;
  background: #b93220;
}

.learning-referral__lottery-actions > button:disabled {
  cursor: wait;
  opacity: 0.58;
}

.learning-referral__notice {
  grid-column: 1 / -1;
  color: #f7b3a5;
  font-size: var(--t-mono);
  line-height: var(--lh-ui);
}

.learning-referral__ranking {
  margin-top: 24px;
}

.wiki-article .learning-referral__ranking h4 {
  margin: 0;
  color: var(--ink);
  font-size: var(--t-comp);
  line-height: var(--lh-title);
}

.learning-referral__ranking ol {
  display: block;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.learning-referral__ranking li {
  display: grid;
  min-width: 0;
  grid-template-columns: 34px 38px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
}

.learning-referral__ranking li.is-me {
  background: var(--watcha-soft);
}

.learning-referral__rank {
  color: var(--verm, #c83c28);
  font-family: var(--font-serif);
  font-size: var(--t-ui);
  font-style: italic;
  font-weight: 700;
}

.learning-referral__ranking img,
.learning-referral__avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
}

.wiki-article .learning-referral__user-avatar,
.wiki-article .learning-referral__person {
  padding-bottom: 0;
  border-bottom: 0;
  color: inherit;
  background: transparent;
  text-decoration: none;
}

.wiki-article .learning-referral__user-avatar {
  display: block;
  width: 38px;
  height: 38px;
  border-radius: 50%;
}

.wiki-article .learning-referral__user-avatar:hover,
.wiki-article .learning-referral__person:hover {
  color: inherit;
  background: transparent;
  text-decoration: none;
}

.wiki-article .learning-referral__user-avatar:focus-visible,
.wiki-article .learning-referral__person:focus-visible {
  outline: 2px solid var(--watcha);
  outline-offset: 3px;
}

.learning-referral__ranking img {
  object-fit: cover;
}

.learning-referral__avatar {
  display: grid;
  place-items: center;
  color: var(--ink-2);
  background: var(--paper-3, var(--paper-2));
  font-size: var(--t-ui);
  font-weight: 700;
}

.learning-referral__person {
  display: block;
  min-width: 0;
}

.learning-referral__person > strong {
  display: block;
  overflow: hidden;
  margin: 0;
  color: var(--ink);
  font-size: var(--t-ui);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.learning-referral__person > strong small {
  margin-left: 6px;
  color: var(--watcha-deep);
  font-size: var(--t-mono);
}

.learning-referral__score {
  margin: 0;
  color: var(--ink-2);
  font-size: var(--t-mono);
  white-space: nowrap;
}

.learning-referral__score strong {
  color: var(--watcha-deep);
  font-family: var(--font-serif);
  font-size: var(--t-cardtitle);
}

.learning-referral__empty {
  margin: 12px 0 0;
  color: var(--mut);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-share-poster-backdrop {
  position: fixed;
  z-index: 10030;
  inset: 0;
  display: grid;
  padding: 24px;
  background: rgb(20 18 14 / 58%);
  place-items: center;
}

.learning-share-poster {
  display: flex;
  width: min(440px, calc(100vw - 32px));
  max-height: calc(100dvh - 48px);
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  background: var(--paper-2);
  box-shadow: 0 24px 72px rgb(20 18 14 / 20%);
}

.learning-share-poster > header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 18px 14px;
}

.learning-share-poster > header :is(small, h3) {
  margin: 0;
}

.learning-share-poster > header small {
  color: var(--watcha-deep);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
}

.learning-share-poster > header h3 {
  margin-top: 4px;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: var(--t-cardtitle);
  line-height: var(--lh-title);
}

.learning-share-poster > header > button {
  display: grid;
  width: 34px;
  height: 34px;
  flex: none;
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  color: var(--ink-2);
  background: transparent;
  cursor: pointer;
  place-items: center;
}

.learning-share-poster > img {
  display: block;
  width: 100%;
  min-height: 0;
  flex: 1;
  object-fit: contain;
  -webkit-touch-callout: default;
  user-select: auto;
}

.learning-share-poster > footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px 18px 18px;
  text-align: center;
}

.learning-share-poster > footer p {
  margin: 0;
  color: var(--mut);
  font-size: var(--t-mono);
}

html.has-learning-referral-lottery {
  overflow: hidden;
}

.learning-referral-lottery-backdrop {
  position: fixed;
  z-index: 10020;
  inset: 0;
  display: grid;
  overflow-y: auto;
  place-items: center;
  padding: 24px;
  background: rgb(18 16 12 / 54%);
}

.learning-referral-lottery {
  width: min(100%, 520px);
  padding: 24px;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  color: var(--ink);
  background: var(--paper-2);
  box-shadow: 0 22px 70px rgb(25 20 13 / 20%);
}

.learning-referral-lottery > header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.learning-referral-lottery > header p {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 7px;
  color: var(--verm, #c83c28);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: 0.06em;
}

.learning-referral-lottery > header h3 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: clamp(23px, 4vw, 30px);
  line-height: var(--lh-title);
}

.learning-referral-lottery > header > button {
  display: grid;
  width: 38px;
  height: 38px;
  flex: none;
  place-items: center;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  color: var(--ink-2);
  background: transparent;
  cursor: pointer;
}

.learning-referral-lottery__chance {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 7px;
  margin-top: 28px;
}

.learning-referral-lottery__chance span,
.learning-referral-lottery__chance small {
  color: var(--mut);
  font-size: var(--t-ui);
}

.learning-referral-lottery__chance strong {
  color: var(--verm, #c83c28);
  font-family: var(--font-serif);
  font-size: clamp(56px, 12vw, 76px);
  font-style: italic;
  line-height: 0.9;
}

.learning-referral-lottery__message {
  min-height: 24px;
  margin: 16px 0 0;
  color: var(--mut);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
  text-align: center;
}

.learning-referral-lottery__message[data-kind='error'] {
  color: var(--verm, #c83c28);
}

.learning-referral-lottery__message[data-kind='success'] {
  color: var(--watcha-deep);
}

.learning-referral-lottery__result {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  padding: 16px;
  border-radius: 10px;
  color: var(--watcha-deep);
  background: var(--watcha-soft);
}

.learning-referral-lottery__result[data-result='not-win'] {
  color: var(--ink-2);
  background: var(--paper-3, #f4f0e8);
}

.learning-referral-lottery__result > svg {
  flex: none;
  margin-top: 2px;
}

.learning-referral-lottery__result strong,
.learning-referral-lottery__result p {
  display: block;
  margin: 0;
}

.learning-referral-lottery__result p {
  margin-top: 5px;
  color: var(--ink-2);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-referral-lottery__result code {
  color: inherit;
  font-family: var(--font-mono);
}

.learning-referral-lottery__claim {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.learning-referral-lottery__claim button {
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid var(--line-2);
  border-radius: 7px;
  color: var(--ink);
  background: var(--paper-2);
  font: inherit;
  font-size: var(--t-mono);
  cursor: pointer;
}

.learning-referral-lottery__draw {
  width: 100%;
  min-height: 46px;
  margin-top: 22px;
  border: 1px solid var(--ink);
  border-radius: 9px;
  color: var(--paper-2);
  background: var(--ink);
  font: inherit;
  font-size: var(--t-comp);
  font-weight: 700;
  cursor: pointer;
}

.learning-referral-lottery__draw:hover:not(:disabled) {
  border-color: var(--verm, #c83c28);
  background: var(--verm, #c83c28);
}

.learning-referral-lottery__draw:disabled {
  cursor: not-allowed;
  opacity: 0.44;
}

.learning-referral-lottery__history {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 16px;
  color: var(--ink-2);
  font-size: var(--t-ui);
}

.learning-referral-lottery > footer {
  margin-top: 20px;
  color: var(--mut);
  font-size: var(--t-mono);
  line-height: var(--lh-ui);
}

.learning-assignments {
  display: grid;
  gap: 18px;
  scroll-margin-top: 120px;
}

.learning-assignment {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: var(--paper-2);
}

.learning-assignment + .learning-assignment {
  padding-top: 0;
}

.learning-assignment__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px 10px;
}

.learning-assignment__head > div {
  min-width: 0;
}

.learning-assignment__head small {
  display: block;
  margin-bottom: 4px;
  color: var(--watcha-deep);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: 0.06em;
}

.wiki-article .learning-assignment__head h3 {
  margin: 0;
  color: var(--ink);
  font-size: var(--t-cardtitle);
  line-height: var(--lh-title);
}

.learning-assignment__status {
  display: inline-flex;
  min-height: 29px;
  flex: none;
  align-items: center;
  gap: 5px;
  padding: 4px 8px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  color: var(--mut);
  background: var(--paper-2);
  font-size: var(--t-mono);
  line-height: 1;
  white-space: nowrap;
}

.learning-assignment[data-state='approved'] .learning-assignment__status,
.learning-assignment[data-state='active'] .learning-assignment__status,
.learning-assignment[data-state='reviewing'] .learning-assignment__status {
  border-color: var(--watcha-line);
  color: var(--watcha-deep);
  background: var(--watcha-soft);
}

.wiki-article .learning-assignment__description {
  margin: 0;
  padding: 0 20px 4px;
  color: var(--ink-2);
  font-size: var(--t-comp);
  line-height: var(--lh-body);
}

.wiki-article a.learning-assignment__detail {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin: 7px 20px 0;
  padding-bottom: 0;
  border-bottom: 0;
  color: var(--watcha-deep);
  background: transparent;
  font-size: var(--t-ui);
  font-weight: 650;
  text-decoration: none;
}

.wiki-article a.learning-assignment__detail:is(:hover, :focus, :focus-visible, :active, :visited) {
  padding-bottom: 0;
  border-bottom: 0;
  color: var(--watcha-deep);
  background: transparent;
  text-decoration: none;
}

.learning-assignment__gate,
.learning-questionnaire,
.learning-assignment__submitted,
.learning-assignment__sync-error,
.learning-assignment__done,
.learning-assignment__quiet,
.learning-assignment__message,
.learning-assignment__load-error,
.learning-comment,
.learning-explore,
.learning-choice {
  margin: 16px 20px 20px;
}

.learning-assignment__gate,
.learning-questionnaire,
.learning-assignment__submitted {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px 0;
  border: 0;
  background: transparent;
}

.learning-assignment__gate > svg,
.learning-assignment__submitted > svg {
  color: var(--watcha-deep);
}

.learning-assignment__gate :is(strong, p),
.learning-questionnaire :is(strong, p),
.learning-assignment__submitted :is(strong, p) {
  display: block;
  margin: 0;
}

.learning-assignment__gate strong,
.learning-questionnaire strong,
.learning-assignment__submitted strong {
  color: var(--ink);
  font-size: var(--t-ui);
}

.learning-assignment__gate p,
.learning-questionnaire p,
.learning-assignment__submitted p {
  margin-top: 2px;
  color: var(--mut);
  font-size: var(--t-mono);
  line-height: var(--lh-ui);
}

.learning-assignment__gate button,
.learning-questionnaire a,
.learning-assignment__submitted a,
.learning-assignment__sync-error button {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 6px 11px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  color: var(--ink);
  background: var(--paper-2);
  font-size: var(--t-ui);
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.learning-assignment__gate button:hover,
.learning-questionnaire a:hover,
.learning-assignment__submitted a:hover,
.learning-assignment__sync-error button:hover {
  border-color: var(--watcha);
  color: var(--watcha-deep);
}

.learning-assignment__quiet,
.learning-assignment__message {
  color: var(--mut);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-assignment__message[data-tone='error'],
.learning-assignment__sync-error {
  color: var(--danger, #a54636);
}

.learning-assignment__message[data-tone='success'] {
  color: var(--watcha-deep);
}

.learning-assignment__load-error {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--mut);
  font-size: var(--t-ui);
}

.learning-assignment__load-error p {
  margin: 0;
}

.learning-assignment__load-error button {
  flex: none;
  min-height: 34px;
  padding: 6px 11px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  color: var(--ink);
  background: var(--paper-2);
  font: inherit;
}

.learning-assignment__load-error button:hover {
  border-color: var(--watcha);
  color: var(--watcha-deep);
}

.learning-assignment__sync-error {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 13px;
  border: 1px solid color-mix(in srgb, currentColor 32%, var(--line));
  border-radius: 9px;
  background: var(--paper);
}

.learning-assignment__sync-error p {
  margin: 0;
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-assignment__sync-error button {
  flex: none;
}

.learning-assignment__done {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 0;
  border: 0;
  color: var(--watcha-deep);
  background: transparent;
  font-size: var(--t-ui);
  font-weight: 650;
}

.learning-comment__target {
  margin: 0 0 10px;
  color: var(--ink-2);
  font-size: var(--t-ui);
}

.learning-explore__progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.learning-explore__progress > div {
  display: flex;
  gap: 7px;
}

.learning-explore__progress span {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  color: var(--mut);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
}

.learning-explore__progress span[data-state='approved'] {
  border-color: var(--watcha-line);
  color: var(--watcha-deep);
  background: var(--watcha-soft);
}

.learning-explore__progress span[data-state='reviewing'] {
  border-color: var(--watcha-line);
  color: var(--watcha-deep);
}

.learning-explore__progress p {
  margin: 0;
  color: var(--mut);
  font-size: var(--t-mono);
}

.learning-explore__records {
  margin: 0 0 14px;
  padding: 0;
  border-block: 1px solid var(--line);
  list-style: none;
}

.learning-explore__records li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 12px;
  align-items: center;
  padding: 10px 2px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  font-size: var(--t-ui);
}

.learning-explore__records li:last-child {
  border-bottom: 0;
}

.learning-explore__records strong {
  color: var(--mut);
  font-size: var(--t-mono);
  font-weight: 550;
}

.learning-explore__records a {
  color: var(--watcha-deep);
  text-decoration: none;
}

.learning-choice {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.learning-choice button {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 9px;
  align-items: center;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--line-2);
  border-radius: 9px;
  color: var(--ink-2);
  background: var(--paper-2);
  text-align: left;
}

.learning-choice button:hover:not(:disabled) {
  border-color: var(--watcha);
  color: var(--watcha-deep);
  background: var(--watcha-soft);
}

.learning-choice button span {
  color: var(--mut);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
}

.learning-choice button strong {
  font-size: var(--t-ui);
  font-weight: 600;
}

/* 作业内嵌时复用同一创作组件，并撤掉重复外壳；输入控件仍沿用生产组件。 */
.learning-assignment .wiki-community-composer[data-variant='task'] {
  margin: 0;
}

.learning-assignment .wiki-community-composer[data-variant='task'] .community-compose-shell {
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.learning-assignment .wiki-community-composer[data-variant='task'] .community-compose__head {
  display: none;
}

.learning-assignment .wiki-community-composer[data-variant='task'] .community-compose__head h2 {
  font-size: var(--t-cardtitle);
}

.learning-assignment .wiki-community-composer[data-variant='task'] .community-compose__body {
  padding: 4px 20px 20px;
}

.learning-assignment .wiki-community-composer[data-variant='task'] .community-compose__kicker,
.learning-assignment .wiki-community-composer[data-variant='task'] .community-compose__steps {
  display: none;
}

/* 第一课产品体验：沿用旧共学营动线，内部只保留必要控件，外层由作业模块闭合。 */
.learning-explore-compose {
  display: grid;
  gap: 14px;
}

.learning-assignment > .learning-explore {
  margin-bottom: 0;
  padding-bottom: 20px;
}

.learning-product-search {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--line-2);
  border-radius: 9px;
  color: var(--mut);
  background: var(--paper-2);
}

.learning-product-search:focus-within {
  border-color: var(--ink-2);
}

.learning-product-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font: inherit;
  font-size: var(--t-comp);
}

.learning-product-results {
  display: grid;
  border-block: 1px solid var(--line);
}

.learning-product-results > button {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 4px;
  border: 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.learning-product-results > button:last-child {
  border-bottom: 0;
}

.learning-product-results > button:hover {
  background: var(--watcha-soft);
}

.learning-product-results > button > div {
  min-width: 0;
  flex: 1;
}

.learning-product-results > button > span {
  color: var(--watcha-deep);
  font-size: var(--t-ui);
  font-weight: 650;
}

.learning-product-selected {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 2px;
}

.learning-product-selected > div:first-child {
  min-width: 0;
  flex: 1;
}

.learning-product-selected > div:last-child {
  display: flex;
  flex: none;
  align-items: center;
  gap: 12px;
}

.learning-product-selected :is(a, button) {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 0;
  color: var(--watcha-deep);
  background: transparent;
  font: inherit;
  font-size: var(--t-ui);
  text-decoration: none;
  cursor: pointer;
}

.learning-product-selected button {
  color: var(--mut);
}

.learning-compose-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
}

.learning-compose-tabs button {
  min-height: 34px;
  padding: 6px 11px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--mut);
  background: transparent;
  font: 600 var(--t-ui) / 1.5 var(--font-sans);
  cursor: pointer;
}

.learning-compose-tabs button:hover {
  color: var(--ink);
  background: var(--paper);
}

.learning-compose-tabs button[aria-selected='true'] {
  border-color: var(--watcha-line);
  color: var(--watcha-deep);
  background: var(--watcha-soft);
}

.learning-compose-tabs--secondary {
  padding-top: 0;
}

.learning-compose-tabs--secondary button {
  min-height: 30px;
  padding: 4px 9px;
  font-size: var(--t-mono);
}

.learning-compose-editor {
  min-width: 0;
  padding-top: 2px;
}

.learning-compose-editor .review-editor-container,
.learning-compose-editor .editor-wrapper {
  background: transparent;
}

.learning-compose-editor .vote-overlay {
  background: color-mix(in srgb, var(--paper-2) 72%, transparent);
}

.learning-compose-editor .editor-container,
.learning-compose-editor .vote-toolbar {
  border-color: var(--line-2);
  background: var(--paper-2);
  box-shadow: none;
}

.learning-post-title {
  width: 100%;
  min-height: 42px;
  margin-bottom: 9px;
  padding: 8px 11px;
  border: 1px solid var(--line-2);
  border-radius: 9px;
  outline: 0;
  color: var(--ink);
  background: var(--paper-2);
  font: inherit;
  font-size: var(--t-comp);
}

.learning-post-title:focus {
  border-color: var(--ink-2);
}

.learning-existing {
  min-width: 0;
}

.learning-existing > p,
.learning-existing__loading {
  margin: 0;
  padding: 18px 2px;
  color: var(--mut);
  font-size: var(--t-ui);
  text-align: center;
}

.learning-existing__loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
}

.learning-existing ul {
  margin: 0;
  padding: 0;
  border-block: 1px solid var(--line);
  list-style: none;
}

.learning-existing li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.learning-existing li:last-child {
  border-bottom: 0;
}

.learning-existing li > button {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2px 12px;
  padding: 11px 8px;
  border: 0;
  color: var(--ink);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.learning-existing li > button[aria-pressed='true'] {
  color: var(--watcha-deep);
  background: var(--watcha-soft);
}

.learning-existing li strong {
  overflow: hidden;
  font-size: var(--t-ui);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.learning-existing li span {
  overflow: hidden;
  grid-column: 1 / -1;
  color: var(--mut);
  font-size: var(--t-mono);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.learning-existing li small {
  color: var(--mut);
  font-size: var(--t-mono);
}

.learning-existing li > a {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  margin-right: 4px;
  color: var(--mut);
}

.learning-existing__confirm {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding-top: 12px;
}

.learning-existing__confirm span {
  margin-right: auto;
  color: var(--ink-2);
  font-size: var(--t-ui);
}

.learning-existing__confirm button {
  min-height: 34px;
  padding: 6px 11px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  color: var(--ink);
  background: var(--paper-2);
  font: 650 var(--t-ui) / 1.5 var(--font-sans);
  cursor: pointer;
}

.learning-existing__confirm button:last-child {
  border-color: var(--ink);
  color: var(--paper-2);
  background: var(--ink);
}

.learning-compose-message {
  margin: 0;
  color: var(--danger, #a54636);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.is-spinning {
  animation: wiki-learning-spin 0.8s linear infinite;
}

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

.learning-journey-preview__guest {
  display: grid;
  justify-items: center;
  gap: 7px;
  padding: 46px 28px 50px;
  text-align: center;
}

.learning-journey-preview__guest > svg {
  margin-bottom: 5px;
  color: var(--watcha-deep);
}

.learning-journey-preview__guest h3,
.learning-journey-preview__guest p {
  margin: 0;
}

.learning-journey-preview__guest h3 {
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: var(--t-cardtitle);
}

.learning-journey-preview__guest p,
.learning-journey-preview__loading,
.learning-journey-preview__empty {
  color: var(--mut);
  font-size: var(--t-ui);
  line-height: var(--lh-ui);
}

.learning-journey-preview__guest :is(button, a) {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  margin-top: 9px;
  padding: 7px 15px;
  border: 1px solid var(--ink);
  border-radius: 9px;
  color: var(--paper-2);
  background: var(--ink);
  font-size: var(--t-ui);
  font-weight: 700;
  text-decoration: none;
}

.learning-journey-preview__loading {
  padding: 46px 24px;
  text-align: center;
}

.learning-journey-preview__certificate a {
  display: inline-flex;
  margin-top: 8px;
  color: var(--watcha-deep);
  font-size: var(--t-ui);
  text-decoration: none;
}

.learning-journey-preview__certificate > div:first-child {
  display: grid;
  place-items: center;
}

.learning-journey-preview__invite-code button {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

@media (max-width: 640px) {
  :is(watcha-learning-task, watcha-learning-enrollment, watcha-learning-referral) {
    margin-top: 22px;
  }

  .learning-referral {
    padding: 20px 18px;
  }

  .learning-referral__invite-bar {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .learning-referral__invite-bar > :is(button, a) {
    width: 100%;
  }

  .learning-referral__invite-actions {
    width: 100%;
    flex-direction: column;
  }

  .learning-referral__invite-actions > :is(button, a) {
    width: 100%;
  }

  .learning-referral__rank-rewards article {
    min-height: 220px;
  }

  .learning-referral__prize-rank {
    font-size: 18px;
  }

  .learning-referral__prize-media {
    height: 96px;
  }

  .wiki-article .learning-referral__rank-rewards img {
    height: 90px;
  }

  .learning-referral__section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .learning-referral__section-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 4px 12px;
  }

  .learning-referral__lottery {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 20px;
  }

  .learning-referral__lottery-status {
    gap: 4px 14px;
  }

  .learning-referral__lottery-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-content: stretch;
  }

  .learning-referral__lottery-actions > :is(button, a) {
    width: 100%;
    white-space: normal;
  }

  .learning-referral__lottery-actions > :only-child {
    grid-column: 1 / -1;
  }

  .learning-referral__ranking li {
    padding-right: 4px;
    padding-left: 4px;
  }

  .learning-referral-lottery-backdrop {
    align-items: end;
    padding: 12px;
  }

  .learning-referral-lottery {
    max-height: calc(100dvh - 24px);
    overflow-y: auto;
    padding: 20px;
  }

  .learning-enrollment {
    padding: 0;
  }

  .learning-enrollment__action,
  .wiki-article .learning-enrollment__action {
    min-height: 72px;
    gap: 8px;
    padding: 14px 16px;
  }

  .learning-enrollment__action-copy strong {
    font-size: var(--t-body);
  }

  .learning-enrollment__action-copy small {
    font-size: var(--t-mono);
  }

  .learning-enrollment__action-leading {
    grid-template-columns: 19px minmax(0, 1fr);
    gap: 8px;
  }

  .learning-enrollment__action-icon {
    width: 19px;
    height: 19px;
  }

  .learning-enrollment__state {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .learning-enrollment__state > :is(button, a) {
    width: 100%;
  }

  .learning-enrollment__fields {
    grid-template-columns: 1fr;
  }

  .learning-enrollment__fields label.is-wide {
    grid-column: auto;
  }

  .learning-enrollment__form footer {
    align-items: stretch;
    flex-direction: column;
  }

  .learning-assistant__status {
    justify-self: start;
  }

  .learning-enrollment-modal {
    padding: 10px;
  }

  .learning-enrollment-modal__dialog {
    width: calc(100vw - 20px);
    max-height: calc(100dvh - 20px);
  }

  .learning-enrollment-modal__head {
    padding: 18px 18px 15px;
  }

  .learning-enrollment-modal__body {
    padding: 0 18px 18px;
  }

  .learning-enrollment-modal__tabs {
    margin-right: 18px;
    margin-left: 18px;
  }

  .learning-enrollment-modal__qr {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .learning-enrollment-modal__qr img {
    width: min(260px, 100%);
    justify-self: center;
  }

  .learning-enrollment-modal__body footer > button {
    width: 100%;
  }

  .learning-assignment__head {
    padding: 16px 16px 9px;
  }

  .wiki-article .learning-assignment__description {
    padding: 0 16px 3px;
  }

  .wiki-article .learning-assignment__detail {
    margin-right: 16px;
    margin-left: 16px;
  }

  .learning-assignment__gate,
  .learning-questionnaire,
  .learning-assignment__submitted,
  .learning-assignment__sync-error,
  .learning-assignment__done,
  .learning-assignment__quiet,
  .learning-assignment__message,
  .learning-assignment__load-error,
  .learning-comment,
  .learning-explore,
  .learning-choice {
    margin-right: 16px;
    margin-left: 16px;
  }

  .learning-assignment__gate,
  .learning-questionnaire,
  .learning-assignment__submitted {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .learning-assignment__gate > button,
  .learning-questionnaire > a,
  .learning-assignment__submitted > a {
    grid-column: 1 / -1;
  }

  .learning-choice {
    grid-template-columns: 1fr;
  }

  .learning-explore__progress {
    align-items: flex-start;
    flex-direction: column;
  }

  .learning-explore__records li {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .learning-explore__records a {
    grid-column: 1 / -1;
  }

  .learning-assignment .wiki-community-composer[data-variant='task'] .community-compose__head,
  .learning-assignment .wiki-community-composer[data-variant='task'] .community-compose__body {
    padding-right: 16px;
    padding-left: 16px;
  }

  .learning-product-selected {
    align-items: flex-start;
    flex-direction: column;
  }

  .learning-product-selected > div:last-child {
    width: 100%;
    justify-content: space-between;
  }

  .learning-compose-tabs {
    overflow-x: auto;
  }

  .learning-existing__confirm {
    align-items: stretch;
    flex-wrap: wrap;
  }

  .learning-existing__confirm span {
    width: 100%;
  }

  .learning-compose-editor .vote-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }
}