.recording-library {
  display: grid;
  gap: 14px;
}

.cc-recording-categories {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 18px;
  padding: 8px;
  border: 1px solid #d9e5f2;
  border-radius: 16px;
  background: #fff;
}

.cc-recording-category {
  min-height: 50px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: #f4f8fc;
  color: #536b86;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background .18s ease, color .18s ease, box-shadow .18s ease;
}

.cc-recording-category:hover {
  color: #0c6fe8;
  background: #edf6ff;
}

.cc-recording-category.is-active {
  color: #fff;
  background: #1976e9;
  box-shadow: 0 8px 18px rgba(25, 118, 233, .2);
}

.cc-recording-empty {
  min-height: 230px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  padding: 36px;
  border: 1px solid #d9e5f2;
  border-radius: 18px;
  background: #fff;
  color: #6d8098;
  text-align: center;
}

.cc-recording-empty[hidden],
.recording-library[hidden] {
  display: none !important;
}

.cc-recording-empty > div {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: #eaf4ff;
  color: #1976e9;
  font-size: 24px;
}

.cc-recording-empty h3,
.cc-recording-empty p {
  margin: 0;
}

.cc-recording-empty h3 {
  color: #0a2749;
  font-size: 20px;
}

@media (max-width: 680px) {
  .cc-recording-categories {
    gap: 6px;
    padding: 6px;
  }

  .cc-recording-category {
    min-height: 44px;
    padding: 6px;
    font-size: 13px;
  }
}

.recording-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
  align-items: center;
  gap: 28px;
  padding: 26px;
  border: 1px solid #dfe7ef;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(15, 50, 85, .06);
}

.recording-card__info {
  display: grid;
  gap: 9px;
}

.recording-card__info .category-tag {
  justify-self: start;
}

.recording-card__info h3 {
  margin: 0;
  color: #071d37;
  font-size: 21px;
}

.recording-card__info p {
  margin: 0;
  color: #64758a;
  font-size: 13px;
  line-height: 1.7;
}

.recording-card audio {
  width: 100%;
  accent-color: #1476e4;
}

.course-video-library {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.course-video-card {
  overflow: hidden;
  border: 1px solid #dfe7ef;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(15, 50, 85, .06);
}

/* Daily quiz result memory */
.module-content.cc-quiz-history-page {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 286px;
  column-gap: 18px;
  align-items: start;
}

.cc-quiz-history-page > .module-hero {
  grid-column: 1 / -1;
}

.cc-quiz-history-page > .quiz-shell,
.cc-quiz-history-page > .quiz-result {
  grid-column: 1;
  grid-row: 2;
  width: 100%;
}

.cc-quiz-history-page > .quiz-shell { max-width: none; }

.cc-quiz-history {
  grid-column: 2;
  grid-row: 2;
  margin-top: 20px;
  padding: 18px 16px;
  border: 1px solid #dfe7f0;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(12, 52, 91, .06);
}

.cc-quiz-history header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px;
  padding: 0 2px 13px;
  border-bottom: 1px solid #edf1f5;
}

.cc-quiz-history h3 { margin: 0; color: #10233e; font-size: 16px; }
.cc-quiz-history-summary { margin: 0; color: #7b899b; font-size: 10px; }

.cc-quiz-history-list {
  max-height: 470px;
  overflow-y: auto;
  display: grid;
  gap: 6px;
  margin-top: 12px;
  padding-right: 3px;
  scrollbar-width: thin;
}

.cc-quiz-history-item {
  min-height: 47px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: #f7f9fc;
}

.cc-quiz-history-item.is-current {
  border-color: #72aff8;
  background: #eef6ff;
}

.cc-quiz-history-day { color: #3d5269; font-size: 11px; }
.cc-quiz-history-item.is-current .cc-quiz-history-day { color: #0d6edc; }
.cc-quiz-history-status { display: grid; justify-items: end; gap: 1px; }
.cc-quiz-history-status > span { color: #98a5b4; font-size: 10px; }
.cc-quiz-history-status > strong { color: #15966b; font-size: 12px; }
.cc-quiz-history-status > small { color: #8493a5; font-size: 9px; }

@media (max-width: 1000px) {
  .module-content.cc-quiz-history-page { grid-template-columns: 1fr; }
  .cc-quiz-history-page > .module-hero,
  .cc-quiz-history-page > .quiz-shell,
  .cc-quiz-history-page > .quiz-result,
  .cc-quiz-history { grid-column: 1; }
  .cc-quiz-history-page > .quiz-shell,
  .cc-quiz-history-page > .quiz-result { grid-row: 2; }
  .cc-quiz-history { grid-row: 3; margin-top: 14px; }
  .cc-quiz-history-list { max-height: 360px; }
}

.course-video-player {
  aspect-ratio: 16 / 9;
  background: #061f3b;
}

.course-video-player video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #061f3b;
}

.course-video-info {
  display: grid;
  gap: 9px;
  padding: 20px 22px 22px;
}

.course-video-info .category-tag {
  justify-self: start;
}

.course-video-info h3 {
  margin: 0;
  color: #071d37;
  font-size: 20px;
}

.course-video-info p {
  margin: 0;
  color: #64758a;
  font-size: 13px;
  line-height: 1.7;
}

.course-video-info small {
  color: #91a0b2;
  font-size: 12px;
}

.course-video-empty {
  display: flex;
  min-height: 320px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 36px;
  border: 1px dashed #cdddec;
  border-radius: 16px;
  background: #fff;
  text-align: center;
}

.course-video-empty__icon {
  display: grid;
  width: 60px;
  height: 60px;
  place-items: center;
  margin-bottom: 5px;
  border-radius: 50%;
  background: #eaf4ff;
  color: #1476e4;
  font-size: 22px;
  text-indent: 3px;
}

.course-video-empty h3 {
  margin: 0;
  color: #071d37;
  font-size: 21px;
}

.course-video-empty p {
  max-width: 480px;
  margin: 0;
  color: #718298;
  font-size: 13px;
  line-height: 1.7;
}

.timeline-item.is-completed .timeline-copy strong {
  color: #10956a;
}

.timeline-item.is-completed .timeline-copy strong::after {
  content: "已打卡";
  display: inline-block;
  margin-left: 8px;
  color: #10956a;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .02em;
}

.timeline-item.is-completed:not(.is-active) .timeline-dot {
  border-color: #92dcc3;
  background: #eaf9f3;
  color: #10956a;
}

.streak[data-cc-calendar-trigger] {
  cursor: pointer;
  border-radius: 10px;
  outline: 0 solid rgba(39, 139, 255, 0);
  transition: background .2s ease, outline-color .2s ease;
}

.streak[data-cc-calendar-trigger]:hover,
.streak[data-cc-calendar-trigger]:focus-visible {
  background: #f0f7ff;
  outline: 6px solid #f0f7ff;
}

body.cc-calendar-open {
  overflow: hidden;
}

.cc-calendar-overlay {
  position: fixed;
  inset: 0;
  z-index: 99998;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(4, 25, 49, .48);
  backdrop-filter: blur(5px);
}

.cc-calendar-modal {
  width: min(620px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding: 26px;
  border: 1px solid #dce7f3;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(6, 31, 59, .28);
  color: #071d37;
}

.cc-calendar-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.cc-calendar-header small {
  color: #1476e4;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .14em;
}

.cc-calendar-header h2 {
  margin: 5px 0 3px;
  font-size: 27px;
}

.cc-calendar-header p {
  margin: 0;
  color: #708199;
  font-size: 13px;
}

.cc-calendar-close,
.cc-calendar-toolbar button {
  border: 1px solid #dce7f3;
  background: #f7faff;
  color: #34516f;
  cursor: pointer;
}

.cc-calendar-close {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  font-size: 24px;
  line-height: 1;
}

.cc-calendar-toolbar {
  display: grid;
  grid-template-columns: 40px 1fr 40px;
  align-items: center;
  gap: 12px;
  margin: 24px 0 14px;
}

.cc-calendar-toolbar strong {
  text-align: center;
  font-size: 16px;
}

.cc-calendar-toolbar button {
  height: 38px;
  border-radius: 10px;
  font-size: 24px;
}

.cc-calendar-toolbar button:disabled {
  opacity: .35;
  cursor: default;
}

.cc-calendar-weekdays,
.cc-calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
}

.cc-calendar-weekdays {
  margin-bottom: 8px;
  color: #8190a4;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

.cc-calendar-day {
  min-height: 66px;
  padding: 8px 7px;
  border: 1px solid #e4ebf3;
  border-radius: 11px;
  background: #f8fafc;
}

.cc-calendar-day strong,
.cc-calendar-day small {
  display: block;
  text-align: center;
}

.cc-calendar-day strong {
  font-size: 15px;
}

.cc-calendar-day small {
  margin-top: 7px;
  color: #8290a2;
  font-size: 9px;
  font-weight: 700;
  white-space: nowrap;
}

.cc-calendar-day.is-empty {
  border-color: transparent;
  background: transparent;
}

.cc-calendar-day.is-checked {
  border-color: #9bdfc9;
  background: #ebfaf4;
  color: #087a54;
}

.cc-calendar-day.is-checked small {
  color: #087a54;
}

.cc-calendar-day.is-missed {
  border-color: #f5c7c7;
  background: #fff4f4;
  color: #b94747;
}

.cc-calendar-day.is-missed small {
  color: #c65e5e;
}

.cc-calendar-day.is-today {
  box-shadow: inset 0 0 0 2px #278bff;
}

.cc-calendar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 18px;
  color: #6f8095;
  font-size: 12px;
}

.cc-calendar-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cc-calendar-legend i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e8edf3;
}

.cc-calendar-legend i.is-checked { background: #2fbb87; }
.cc-calendar-legend i.is-missed { background: #eb7777; }

@media (max-width: 800px) {
  .recording-card {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 20px;
  }

  .course-video-library {
    grid-template-columns: 1fr;
  }

  .course-video-info {
    padding: 17px 18px 19px;
  }

  .course-video-empty {
    min-height: 260px;
    padding: 28px 20px;
  }

  .cc-calendar-overlay {
    align-items: flex-end;
    padding: 10px;
  }

  .cc-calendar-modal {
    padding: 20px 14px;
    border-radius: 18px;
  }

  .cc-calendar-day {
    min-height: 54px;
    padding: 6px 3px;
  }

  .cc-calendar-day small {
    font-size: 8px;
  }
}