.self-study-page {
  padding-bottom: 42px;
}

.self-study-hero .site-hero-subtitle {
  max-width: 720px;
}

/* 自学页沿用标准 Hero 高度，避免隐藏的操作区把统计卡片垂直压低。 */
.self-study-hero .self-study-hero-copy {
  height: 144px;
  overflow: hidden;
}

.self-study-sidebar-note {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(219, 229, 223, .78);
}

.self-study-sidebar-note strong,
.today-plan strong {
  display: block;
  color: var(--task-ink, #102b24);
  font-size: 16px;
  font-weight: 900;
}

.self-study-sidebar-note p,
.muted {
  margin: 8px 0 0;
  color: var(--task-muted, #587166);
  line-height: 1.55;
}

.self-study-search {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 104px;
  gap: 10px;
  margin: 18px 0 22px;
}

.self-study-search input {
  min-height: 44px;
  padding: 0 15px;
  border: 1px solid var(--task-line, rgba(208, 224, 216, .9));
  border-radius: 8px;
  background: rgba(255, 255, 255, .76);
  color: var(--task-ink, #102b24);
  font: inherit;
  font-size: 15px;
  outline: none;
}

.self-study-search input:focus {
  border-color: rgba(22, 120, 78, .56);
  box-shadow: 0 0 0 4px rgba(47, 163, 111, .12);
}

.self-study-section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin: 24px 0 14px;
  padding-top: 18px;
  border-top: 1px solid var(--task-line, rgba(208, 224, 216, .9));
}

.self-study-section-head:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.self-study-section-head h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.15;
}

.self-study-course-list,
.self-study-package-list,
.self-study-right {
  display: grid;
  gap: 12px;
}

.self-study-package-list.is-loading {
  min-height: 552px;
}

.self-study-course-skeleton {
  min-height: 176px;
  pointer-events: none;
}

.self-study-course-skeleton .skeleton-block,
.self-study-course-skeleton i {
  display: block;
  border-radius: 8px;
  background: linear-gradient(110deg, rgba(225, 240, 233, .86), rgba(242, 249, 246, .96));
}

.self-study-course-skeleton .skeleton-icon {
  width: 54px;
  height: 54px;
}

.self-study-course-skeleton .skeleton-content,
.self-study-course-skeleton .skeleton-actions {
  display: grid;
  gap: 12px;
}

.self-study-course-skeleton .skeleton-content i:nth-child(1) {
  width: min(260px, 58%);
  height: 24px;
}

.self-study-course-skeleton .skeleton-content i:nth-child(2) {
  width: 92%;
  height: 16px;
}

.self-study-course-skeleton .skeleton-content i:nth-child(3) {
  width: min(380px, 72%);
  height: 28px;
}

.self-study-course-skeleton .skeleton-actions {
  min-width: 150px;
}

.self-study-course-skeleton .skeleton-actions i {
  height: 38px;
}

.lesson-inline-list {
  display: grid;
  gap: 10px;
  margin: -4px 0 10px 70px;
}

.imported-package + .lesson-inline-list {
  padding-bottom: 4px;
}

.package-detail-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.package-main-note {
  margin: -2px 0 18px;
  color: var(--task-muted, #587166);
  line-height: 1.55;
}

.package-catalog-list {
  display: grid;
  gap: 8px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(219, 229, 223, .78);
}

.package-catalog-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  min-height: 48px;
  padding: 8px 10px;
  border: 1px solid var(--task-line, rgba(208, 224, 216, .9));
  border-radius: 8px;
  background: rgba(255, 255, 255, .54);
  color: var(--task-ink, #102b24);
  text-align: left;
  cursor: pointer;
}

.package-catalog-item:hover {
  border-color: rgba(22, 120, 78, .34);
  background: rgba(245, 252, 248, .9);
}

.package-catalog-item span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 34px;
  border-radius: 8px;
  background: rgba(222, 244, 235, .9);
  color: var(--task-green-deep, #0a6745);
  font-weight: 900;
}

.package-catalog-item strong {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 15px;
}

.package-lesson-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.package-lesson-card {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 14px;
  min-width: 0;
  min-height: 390px;
  padding: 14px;
  border: 1px solid var(--task-line, rgba(208, 224, 216, .9));
  border-radius: 8px;
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 18px 46px rgba(36, 64, 54, .08);
  overflow: hidden;
}

.package-lesson-cover {
  position: relative;
  min-width: 0;
  min-height: 132px;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 8px;
  background-color: rgba(222, 244, 235, .92);
  background-image:
    radial-gradient(circle at 18% 18%, rgba(255, 223, 122, .62), transparent 28%),
    linear-gradient(135deg, rgba(225, 247, 236, .95), rgba(217, 237, 249, .86));
  background-position: center;
  background-size: cover;
}

.package-lesson-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 20%, rgba(255, 255, 255, .62), transparent 22%),
    linear-gradient(180deg, transparent 45%, rgba(10, 103, 69, .08));
  pointer-events: none;
}

.package-lesson-cover-2 {
  background-image:
    radial-gradient(circle at 82% 24%, rgba(255, 226, 139, .58), transparent 30%),
    linear-gradient(135deg, rgba(223, 244, 239, .96), rgba(207, 234, 229, .88));
}

.package-lesson-cover-3 {
  background-image:
    radial-gradient(circle at 16% 20%, rgba(255, 223, 122, .64), transparent 28%),
    linear-gradient(135deg, rgba(255, 247, 218, .9), rgba(222, 244, 235, .92));
}

.package-lesson-cover-4 {
  background-image:
    radial-gradient(circle at 70% 28%, rgba(255, 223, 122, .52), transparent 26%),
    linear-gradient(135deg, rgba(230, 246, 238, .96), rgba(243, 239, 211, .88));
}

.package-lesson-code {
  position: absolute;
  left: 14px;
  bottom: 14px;
  z-index: 1;
  display: inline-grid;
  place-items: center;
  min-width: 50px;
  height: 42px;
  padding: 0 12px;
  border-radius: 8px;
  background: rgba(222, 244, 235, .94);
  color: var(--task-green-deep, #0a6745);
  font-size: 22px;
  font-weight: 900;
}

.package-lesson-topline {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.package-lesson-topline h3 {
  margin: 0;
  color: var(--task-ink, #102b24);
  font-size: 20px;
  line-height: 1.2;
}

.package-status-pill {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  min-width: 0;
  min-height: 26px;
  max-width: min(176px, calc(100% - 20px));
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(222, 244, 235, .94);
  color: var(--task-green-deep, #0a6745);
  font-size: 12px;
  font-weight: 900;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  box-shadow: 0 10px 24px rgba(28, 97, 73, .12);
}

.package-lesson-body {
  min-width: 0;
  overflow: hidden;
}

.package-lesson-body h3 {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  color: var(--task-ink, #102b24);
  font-size: 22px;
  line-height: 1.18;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.package-lesson-body p {
  display: -webkit-box;
  min-height: 48px;
  margin: 10px 0 0;
  overflow: hidden;
  color: var(--task-muted, #587166);
  line-height: 1.55;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.package-lesson-meta {
  display: grid;
  gap: 4px;
  margin-top: 12px;
  min-width: 0;
  color: var(--task-muted, #587166);
  font-size: 13px;
  line-height: 1.45;
}

.package-lesson-meta span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.package-lesson-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.lesson-component-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 5px;
  min-width: 0;
}

.lesson-component-card {
  display: grid;
  grid-template-rows: auto auto auto;
  place-items: center;
  gap: 3px;
  min-width: 0;
  min-height: 62px;
  padding: 7px 3px;
  border: 1px solid rgba(174, 212, 194, .72);
  border-radius: 8px;
  background: rgba(255, 255, 255, .72);
  color: var(--task-ink, #102b24);
  text-decoration: none;
  text-align: center;
  transition: border-color .18s ease, background .18s ease, transform .18s ease;
  overflow: hidden;
}

.lesson-component-card:hover {
  border-color: rgba(22, 120, 78, .46);
  background: rgba(246, 253, 249, .96);
  transform: translateY(-1px);
}

.lesson-component-card.is-disabled {
  opacity: .45;
  pointer-events: none;
}

.lesson-component-card.is-done {
  border-color: rgba(22, 120, 78, .34);
  background: rgba(232, 248, 240, .84);
}

.lesson-component-name {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  min-height: 22px;
  border-radius: 999px;
  background: rgba(222, 244, 235, .95);
  color: var(--task-green-deep, #0a6745);
  font-size: 11px;
  font-weight: 900;
}

.lesson-component-card strong {
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
  color: var(--task-ink, #102b24);
  font-size: 14px;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lesson-component-card em {
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
  color: var(--task-muted, #587166);
  font-size: 10px;
  font-style: normal;
  font-weight: 800;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.empty-component {
  grid-column: 1 / -1;
  display: grid;
  place-items: center;
  min-height: 78px;
  border: 1px dashed rgba(143, 194, 169, .62);
  border-radius: 8px;
  color: var(--task-muted, #587166);
  background: rgba(255, 255, 255, .42);
}

.package-empty {
  grid-column: 1 / -1;
}

.self-study-card {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--task-line, rgba(208, 224, 216, .9));
}

.self-study-card:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.self-study-course-card,
.self-study-package-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 15px 16px;
  border: 1px solid var(--task-line, rgba(208, 224, 216, .9));
  border-radius: 8px;
  background: rgba(255, 255, 255, .62);
}

.course-icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 8px;
  background: rgba(222, 244, 235, .9);
  color: var(--task-green-deep, #0a6745);
  font-size: 24px;
  font-weight: 900;
}

.course-content h3,
.package-content h3 {
  margin: 0;
  color: var(--task-ink, #102b24);
  font-size: 20px;
  line-height: 1.2;
}

.course-content p,
.package-content p {
  margin: 6px 0 0;
  color: var(--task-muted, #587166);
  line-height: 1.45;
}

.course-tags,
.package-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.course-tags span,
.package-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(222, 244, 235, .9);
  color: var(--task-green-deep, #0a6745);
  font-size: 13px;
  font-weight: 800;
}

.course-actions,
.package-actions {
  display: grid;
  gap: 8px;
  min-width: 104px;
}

.course-actions button:disabled,
.package-actions button:disabled {
  cursor: not-allowed;
  opacity: .55;
}

.danger-action {
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(210, 76, 65, .36);
  border-radius: 8px;
  background: rgba(255, 255, 255, .68);
  color: #b83228;
  font-size: 16px;
  font-weight: 900;
}

.danger-action:hover {
  background: rgba(255, 241, 238, .92);
  border-color: rgba(210, 76, 65, .58);
}

.empty-state {
  margin: 0;
  padding: 18px;
  border: 1px dashed rgba(143, 194, 169, .62);
  border-radius: 8px;
  color: var(--task-muted, #587166);
  background: rgba(255, 255, 255, .42);
}

.self-study-placeholder {
  display: grid;
  gap: 14px;
  max-width: 760px;
}

.self-study-placeholder h2 {
  margin: 0;
  color: var(--task-ink, #102b24);
  font-size: 34px;
  line-height: 1.1;
}

.self-study-placeholder p {
  margin: 0;
  color: var(--task-muted, #587166);
  line-height: 1.65;
}

.self-study-placeholder .primary-action {
  width: max-content;
  min-width: 148px;
  text-align: center;
  text-decoration: none;
}

.self-study-card .panel-heading {
  margin-bottom: 14px;
}

.import-action {
  width: 100%;
  margin-top: 10px;
}

.today-plan {
  display: grid;
  gap: 6px;
  padding: 12px;
  border: 1px solid var(--task-line, rgba(208, 224, 216, .9));
  border-radius: 8px;
  background: rgba(255, 255, 255, .58);
}

.today-plan span,
.study-steps li {
  color: var(--task-muted, #587166);
  font-size: 14px;
}

.study-steps {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding-left: 20px;
}

.study-steps li.is-done {
  color: var(--task-green-deep, #0a6745);
  font-weight: 900;
}

.lesson-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 14px;
}

.lesson-actions button,
.review-row button {
  width: 100%;
}

.self-study-textarea {
  width: 100%;
  min-height: 96px;
  resize: vertical;
  box-sizing: border-box;
  padding: 12px 14px;
  border: 1px solid var(--task-line, rgba(208, 224, 216, .9));
  border-radius: 8px;
  background: rgba(255, 255, 255, .68);
  color: var(--task-ink, #102b24);
  font: inherit;
  font-size: 15px;
  line-height: 1.5;
  outline: none;
}

.self-study-textarea + .import-action,
.self-study-textarea + .review-row,
.import-action + .self-study-textarea {
  margin-top: 10px;
}

.self-study-textarea:focus,
.review-row input:focus {
  border-color: rgba(22, 120, 78, .56);
  box-shadow: 0 0 0 4px rgba(47, 163, 111, .12);
}

.review-row {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  margin-top: 10px;
}

.review-row input {
  min-height: 42px;
  box-sizing: border-box;
  padding: 0 12px;
  border: 1px solid var(--task-line, rgba(208, 224, 216, .9));
  border-radius: 8px;
  background: rgba(255, 255, 255, .68);
  color: var(--task-ink, #102b24);
  font: inherit;
  font-size: 15px;
  font-weight: 800;
  outline: none;
}

.settlement-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.settlement-grid div {
  min-height: 60px;
  padding: 10px;
  border: 1px solid var(--task-line, rgba(208, 224, 216, .9));
  border-radius: 8px;
  background: rgba(255, 255, 255, .62);
}

.settlement-grid span {
  display: block;
  color: var(--task-muted, #587166);
  font-size: 13px;
}

.settlement-grid strong {
  display: block;
  margin-top: 6px;
  color: var(--task-ink, #102b24);
  font-size: 20px;
  line-height: 1;
}

.self-study-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 60;
  transform: translateX(-50%);
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(31, 50, 42, .94);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 18px 40px rgba(31, 50, 42, .18);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1180px) {
  .self-study-right {
    grid-column: 1 / -1;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 820px) {
  .self-study-layout,
  .package-detail-layout,
  .self-study-right,
  .self-study-course-card,
  .self-study-package-card {
    grid-template-columns: 1fr;
  }

  .package-lesson-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lesson-inline-list {
    margin-left: 0;
  }

  .review-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .package-lesson-grid {
    grid-template-columns: 1fr;
  }

  .lesson-component-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}
/* codex self-study catalog flow 20260817 */
.self-study-hero-actions,
.self-study-side-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.self-study-my-layout,
.course-bind-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 374px;
  gap: 24px;
  align-items: start;
}

.self-study-catalog-panel {
  display: grid;
  gap: 18px;
}

.self-study-right-panel {
  display: grid;
  gap: 16px;
}

.self-study-empty-panel {
  display: grid;
  justify-items: start;
  gap: 12px;
  padding: 36px;
  border: 1px dashed rgba(0, 120, 82, .28);
  border-radius: 20px;
  background: rgba(237, 250, 245, .62);
}

.self-study-empty-panel h3 {
  margin: 0;
  color: var(--task-ink, #102b24);
  font-size: 24px;
}

.self-study-empty-panel p,
.course-detail-summary p {
  margin: 0;
  color: var(--task-muted, #587066);
  line-height: 1.75;
}

.self-study-status-tabs {
  margin-top: -4px;
}

.catalog-package-card .course-actions,
.imported-package .course-actions {
  min-width: 150px;
}

.course-detail-summary {
  display: grid;
  gap: 12px;
  padding: 22px;
  border-radius: 20px;
  background: rgba(237, 250, 245, .62);
  border: 1px solid rgba(0, 120, 82, .14);
}

.course-detail-summary h3 {
  margin: 0;
  color: var(--task-ink, #102b24);
  font-size: 26px;
}

.course-directory-head {
  align-items: center;
}

.course-directory-video-state {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.course-directory-video-state .count-pill.is-ready {
  background: rgba(222, 244, 235, .95);
  color: var(--task-green-deep, #0a6745);
}

.course-directory-video-state .count-pill.is-pending {
  background: rgba(255, 239, 202, .95);
  color: #9a5b00;
}

.course-directory-bind-action {
  min-height: 36px;
  padding: 0 14px;
}

.course-directory-list {
  display: grid;
  gap: 8px;
}

.course-directory-row {
  display: grid;
  grid-template-columns: 44px minmax(190px, .8fr) minmax(300px, 1.7fr) auto;
  gap: 12px;
  align-items: center;
  min-height: 74px;
  padding: 11px 14px;
  border: 1px solid rgba(174, 212, 194, .72);
  border-radius: 10px;
  background: rgba(255, 255, 255, .74);
}

.course-directory-code {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 9px;
  background: rgba(222, 244, 235, .95);
  color: var(--task-green-deep, #0a6745);
  font-size: 14px;
  font-weight: 900;
}

.course-directory-title {
  min-width: 0;
}

.course-directory-title strong,
.course-directory-title small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.course-directory-title strong {
  color: var(--task-ink, #102b24);
  font-size: 16px;
}

.course-directory-title small {
  margin-top: 3px;
  color: var(--task-muted, #587166);
  font-size: 12px;
}

.course-directory-components {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 6px;
  min-width: 0;
}

.course-directory-components > span {
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(238, 247, 243, .92);
  color: var(--task-muted, #587166);
  font-size: 12px;
  line-height: 1.2;
  white-space: nowrap;
}

.course-directory-components > span strong {
  color: var(--task-ink, #102b24);
  font-size: 12px;
}

.course-directory-components > span.is-empty {
  background: transparent;
  padding-left: 0;
}

.course-directory-meta {
  display: grid;
  justify-items: end;
  gap: 6px;
  min-width: 82px;
}

.course-directory-meta small {
  color: var(--task-muted, #587166);
  font-size: 12px;
}

.course-video-status {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.course-video-status.is-ready {
  background: rgba(222, 244, 235, .95);
  color: var(--task-green-deep, #0a6745);
}

.course-video-status.is-pending {
  background: rgba(255, 239, 202, .95);
  color: #9a5b00;
}

.course-directory-empty {
  padding: 18px;
  border: 1px dashed rgba(174, 212, 194, .86);
  border-radius: 10px;
  background: rgba(255, 255, 255, .56);
  color: var(--task-muted, #587166);
  line-height: 1.6;
}

.course-plan-form {
  display: grid;
  gap: 14px;
  margin: 16px 0;
  padding: 16px;
  border: 1px solid rgba(53, 163, 106, 0.2);
  border-radius: 10px;
  background: rgba(244, 251, 247, 0.9);
}

.course-plan-form > label,
.course-plan-inline label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

.course-plan-form input[type="date"],
.course-plan-form input[type="text"],
.course-plan-form select {
  width: 100%;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid rgba(125, 151, 136, 0.34);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.course-plan-form fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.course-plan-form legend {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

.course-plan-weekdays {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
}

.course-plan-weekdays label {
  display: grid;
  place-items: center;
  min-height: 42px;
  border: 1px solid rgba(125, 151, 136, 0.28);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}

.course-plan-weekdays input {
  accent-color: #35a36a;
}

.course-plan-inline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.course-plan-policy {
  display: grid;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px dashed rgba(53, 163, 106, 0.24);
}

.course-plan-policy p {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 0;
  font-size: 13px;
}

.course-plan-policy strong {
  color: #217a4d;
}

.course-plan-policy small,
.package-lesson-lock-tip {
  color: var(--muted);
  line-height: 1.6;
}

.course-reward-card {
  display: grid;
  gap: 14px;
}

.course-reward-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.course-reward-summary article {
  display: grid;
  gap: 6px;
  padding: 14px;
  border: 1px solid rgba(53, 163, 106, .2);
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(236, 253, 245, .95), rgba(255, 251, 235, .92));
}

.course-reward-summary span,
.course-reward-rule span,
.course-milestone-head span {
  color: var(--muted);
  font-size: 12px;
}

.course-reward-summary strong {
  color: #17804f;
  font-size: 25px;
}

.course-reward-rule,
.course-milestone-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.course-reward-rule {
  padding: 12px 0;
  border-bottom: 1px dashed rgba(53, 163, 106, .24);
}

.course-reward-rule strong {
  color: #217a4d;
  font-size: 13px;
}

.course-milestone-list {
  display: grid;
  gap: 9px;
}

.course-milestone-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px;
  border: 1px solid rgba(125, 151, 136, .22);
  border-radius: 12px;
  background: #fff;
}

.course-milestone-item.is-unlocked {
  border-color: rgba(53, 163, 106, .38);
  background: rgba(236, 253, 245, .75);
}

.course-milestone-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  overflow: hidden;
  border-radius: 50%;
  background: #fef3c7;
  font-size: 21px;
}

.course-milestone-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-milestone-copy {
  display: grid;
  gap: 3px;
}

.course-milestone-copy strong {
  color: var(--ink);
  font-size: 13px;
}

.course-milestone-copy small,
.course-milestone-state {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.course-milestone-state {
  white-space: nowrap;
}

.course-plan-dialog {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  place-items: center;
  padding: 24px;
}

.course-plan-dialog[hidden] {
  display: none;
}

.course-plan-dialog-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(15, 35, 29, .52);
  backdrop-filter: blur(3px);
}

.course-plan-dialog-panel {
  position: relative;
  z-index: 1;
  width: min(620px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding: 24px;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(15, 35, 29, .28);
}

.course-plan-dialog-head,
.course-plan-dialog-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.course-plan-dialog-head h2 {
  margin: 3px 0 0;
}

.course-plan-dialog-close {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(125, 151, 136, .3);
  border-radius: 50%;
  background: #fff;
  color: var(--ink);
  font-size: 24px;
  cursor: pointer;
}

.course-plan-dialog-actions {
  justify-content: flex-end;
  margin-top: 18px;
}

body.is-plan-dialog-open {
  overflow: hidden;
}

.package-lesson-card.is-locked {
  opacity: 0.72;
}

.package-lesson-card.is-locked .lesson-component-card {
  cursor: not-allowed;
}

.package-catalog-item.is-locked {
  opacity: 0.6;
}

.package-lesson-access-note {
  margin: 12px 0 0;
  padding: 9px 11px;
  border-radius: 8px;
  background: rgba(244, 247, 246, .92);
  color: var(--task-muted, #587166);
  font-size: 13px;
  line-height: 1.5;
}

.package-lesson-access-note.is-action {
  background: rgba(255, 239, 202, .58);
  color: #80520d;
}

.package-lesson-access-note a {
  margin-left: 6px;
  color: var(--task-green-deep, #0a6745);
  font-weight: 900;
}

@media (max-width: 640px) {
  .course-reward-summary {
    grid-template-columns: 1fr;
  }

  .course-plan-dialog {
    align-items: end;
    padding: 0;
  }

  .course-plan-dialog-panel {
    width: 100%;
    max-height: 92vh;
    border-radius: 20px 20px 0 0;
    padding: 20px 16px calc(20px + env(safe-area-inset-bottom));
  }

  .course-plan-weekdays {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .course-plan-inline {
    grid-template-columns: 1fr;
  }
}

/* Learning-first package page 20260912 */
.package-continue-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  margin: 0 0 22px;
  padding: 24px 28px;
  border-color: rgba(196, 148, 40, .28);
  background:
    radial-gradient(circle at 92% 8%, rgba(255, 226, 139, .42), transparent 30%),
    linear-gradient(120deg, rgba(241, 252, 246, .98), rgba(255, 250, 233, .96));
}

.package-continue-card[hidden] {
  display: none;
}

.package-continue-copy {
  min-width: 0;
}

.package-continue-copy h2 {
  margin: 2px 0 7px;
  color: var(--task-ink, #102b24);
  font-size: clamp(24px, 2.5vw, 34px);
  line-height: 1.15;
}

.package-continue-copy > p:not(.panel-kicker) {
  margin: 0;
  color: var(--task-muted, #587166);
}

.package-continue-progress,
.package-lesson-progress {
  display: grid;
  gap: 7px;
  margin-top: 16px;
}

.package-continue-progress > div,
.package-lesson-progress > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--task-muted, #587166);
  font-size: 13px;
}

.package-continue-progress strong,
.package-lesson-progress strong {
  color: var(--task-green-deep, #0a6745);
}

.package-progress-track,
.package-catalog-progress {
  display: block;
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(143, 177, 159, .22);
}

.package-progress-track i,
.package-catalog-progress i {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #1b9c65, #74c98f);
  transition: width .35s ease;
}

.package-continue-action {
  min-width: 174px;
  min-height: 52px;
  padding: 0 22px;
  border: 0;
  border-radius: 12px;
  background: var(--task-green, #178d59);
  color: #fff;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 14px 28px rgba(23, 141, 89, .2);
}

.package-learning-page .package-detail-layout {
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 18px;
}

.package-catalog-help {
  margin: 12px 0 0;
  color: var(--task-muted, #587166);
  font-size: 13px;
  line-height: 1.6;
}

.package-catalog-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-top: 14px;
  color: var(--task-muted, #587166);
  font-size: 11px;
}

.package-catalog-legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.package-catalog-legend i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #c9d1cd;
}

.package-catalog-legend i.is-done { background: #27a66b; }
.package-catalog-legend i.is-current { background: #d99a22; }

.package-learning-page .package-catalog-list {
  margin-top: 16px;
  padding-top: 14px;
}

.package-learning-page .package-catalog-item {
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: start;
  min-height: 72px;
  padding: 10px;
}

.package-learning-page .package-catalog-item.is-current {
  border-color: rgba(208, 148, 31, .5);
  background: rgba(255, 249, 230, .88);
}

.package-catalog-item > div {
  display: grid;
  min-width: 0;
  gap: 5px;
}

.package-catalog-item small {
  overflow: hidden;
  color: var(--task-muted, #587166);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.package-catalog-progress {
  width: 100%;
  height: 4px;
}

.package-learning-page .package-lesson-grid {
  grid-template-columns: 1fr;
  gap: 12px;
}

.package-learning-page .package-lesson-card {
  grid-template-columns: 156px minmax(220px, .72fr) minmax(440px, 1.7fr);
  grid-template-rows: auto;
  gap: 18px;
  align-items: stretch;
  min-height: 0;
  padding: 14px;
}

.package-learning-page .package-lesson-cover {
  min-height: 164px;
  aspect-ratio: auto;
}

.package-learning-page .package-lesson-code {
  left: 10px;
  bottom: 10px;
  min-width: 42px;
  height: 36px;
  font-size: 18px;
}

.package-learning-page .package-status-pill {
  top: 8px;
  right: 8px;
  min-height: 24px;
  padding: 0 9px;
}

.package-learning-page .package-lesson-body {
  align-self: center;
}

.package-learning-page .package-lesson-body h3 {
  white-space: normal;
}

.package-learning-page .package-lesson-body > p {
  min-height: 0;
  margin-top: 7px;
  font-size: 13px;
  -webkit-line-clamp: 2;
}

.package-learning-page .package-lesson-progress {
  margin-top: 12px;
}

.package-learning-page .package-lesson-meta {
  margin-top: 9px;
  font-size: 11px;
}

.package-learning-page .package-lesson-access-note {
  margin-top: 9px;
  padding: 7px 9px;
  font-size: 11px;
}

.package-learning-page .package-lesson-actions {
  align-self: center;
}

.package-learning-page .lesson-component-grid {
  grid-template-columns: repeat(4, minmax(82px, 1fr));
  gap: 6px;
}

.package-learning-page .lesson-component-card {
  position: relative;
  grid-template-rows: auto auto auto;
  gap: 4px;
  min-height: 72px;
  padding: 7px 5px 6px;
}

.package-learning-page .lesson-component-step {
  position: absolute;
  top: 5px;
  left: 6px;
  color: #8ba097;
  font-size: 9px;
  font-weight: 900;
}

.package-learning-page .lesson-component-card.is-current {
  border-color: rgba(208, 148, 31, .6);
  background: rgba(255, 247, 220, .94);
  box-shadow: inset 0 0 0 1px rgba(225, 174, 65, .12);
}

.package-learning-page .lesson-component-card.is-current .lesson-component-name {
  background: #ffe8a8;
  color: #7c5100;
}

.package-learning-page .lesson-component-card strong {
  font-size: 12px;
}

.package-learning-page .lesson-component-card em {
  font-size: 9px;
}

.package-lesson-primary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 36px;
  padding: 0 13px;
  border-radius: 9px;
  background: #178d59;
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  text-decoration: none;
}

.package-lesson-primary:hover {
  background: #0f7548;
}

.package-lesson-primary.is-review {
  background: #eaf6ef;
  color: #176b48;
}

@media (max-width: 1180px) {
  .package-learning-page .package-lesson-card {
    grid-template-columns: 130px minmax(200px, .8fr) minmax(360px, 1.5fr);
  }
}

@media (max-width: 920px) {
  .package-learning-page .package-detail-layout {
    grid-template-columns: 1fr;
  }

  .package-learning-page .package-catalog-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .package-learning-page .package-lesson-card {
    grid-template-columns: 138px minmax(0, 1fr);
  }

  .package-learning-page .package-lesson-actions {
    grid-column: 1 / -1;
  }
}

@media (max-width: 620px) {
  .package-continue-card {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 20px;
  }

  .package-continue-action {
    width: 100%;
  }

  .package-learning-page .package-catalog-list,
  .package-learning-page .package-lesson-card {
    grid-template-columns: 1fr;
  }

  .package-learning-page .package-lesson-cover {
    min-height: 132px;
  }

  .package-learning-page .lesson-component-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.is-disabled {
  pointer-events: none;
  opacity: .55;
}

/* Course package dashboard 20260915 */
.package-side-heading > span {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  background: rgba(222, 244, 235, .9);
  color: #0a6745;
  font-size: 11px;
  font-weight: 800;
}

.package-dashboard-layout {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(280px, 1fr);
  gap: 20px;
  align-items: start;
}

.package-dashboard-page .package-lessons-panel {
  min-width: 0;
}

.package-dashboard-page .package-lesson-grid {
  grid-template-columns: 1fr;
  gap: 12px;
}

.package-dashboard-page .package-lesson-card {
  grid-template-columns: 150px minmax(210px, .72fr) minmax(370px, 1.45fr);
  grid-template-rows: auto;
  gap: 16px;
  align-items: stretch;
  min-height: 0;
  padding: 13px;
}

.package-dashboard-page .package-lesson-cover {
  min-height: 154px;
  aspect-ratio: auto;
}

.package-dashboard-page .package-lesson-body {
  align-self: center;
}

.package-dashboard-page .package-lesson-body h3 {
  color: #102f27;
  font-family: inherit;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0;
  white-space: normal;
}

.package-dashboard-page .package-lesson-body > p {
  min-height: 0;
  margin-top: 7px;
  color: #637d75;
  -webkit-line-clamp: 3;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.55;
}

.package-dashboard-page .package-lesson-meta {
  color: #637d75;
  font-size: 12px;
  line-height: 1.45;
}

.package-dashboard-page .package-status-pill {
  font-size: 11px;
  font-weight: 800;
}

.package-dashboard-page .lesson-component-grid {
  align-self: center;
  grid-template-columns: repeat(4, minmax(70px, 1fr));
  gap: 6px;
}

.package-dashboard-page .lesson-component-card {
  min-height: 68px;
  padding: 7px 5px 6px;
  color: #102f27;
  font-family: inherit;
}

.package-dashboard-page .lesson-component-card .lesson-component-name {
  font-size: 15px;
  font-weight: 900;
}

.package-dashboard-page .lesson-component-card em {
  color: #526d64;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.25;
}

.package-dashboard-page .lesson-component-card strong {
  color: #08764b;
  font-size: 12px;
  font-weight: 900;
}

.package-info-sidebar {
  position: sticky;
  top: 92px;
  display: grid;
  gap: 12px;
}

.package-side-panel {
  min-width: 0;
  padding: 18px;
}

.package-side-panel h2 {
  margin: 0;
  color: #102b24;
  font-size: 19px;
  line-height: 1.2;
}

.package-side-lead {
  min-height: 44px;
  margin: 10px 0 14px;
  color: #4e6b5f;
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-line;
}

.package-side-primary {
  display: grid;
  place-items: center;
  min-height: 44px;
  border-radius: 10px;
  background: #178d59;
  color: #fff;
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 12px 26px rgba(23, 141, 89, .18);
}

.package-side-primary:hover {
  background: #0e7447;
}

.package-side-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.package-data-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.package-data-list > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(213, 228, 220, .72);
}

.package-data-list > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.package-data-list dt {
  color: #657c72;
  font-size: 12px;
}

.package-data-list dd {
  margin: 0;
  color: #123d31;
  font-size: 13px;
  font-weight: 900;
  text-align: right;
}

.package-ranking-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  padding: 4px;
  border-radius: 10px;
  background: #eef7f2;
}

.package-ranking-tabs button {
  border: 0;
  border-radius: 8px;
  padding: 7px 8px;
  background: transparent;
  color: #557569;
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}

.package-ranking-tabs button[aria-selected="true"] {
  background: #fff;
  color: #087448;
  box-shadow: 0 2px 8px rgba(21, 75, 50, .1);
}

.package-ranking-tabs button:focus-visible {
  outline: 2px solid #087448;
  outline-offset: 2px;
}

.package-ranking-rule,
.package-ranking-group-title,
.package-ranking-empty {
  margin: 10px 0 6px;
  color: #657c72;
  font-size: 11px;
  line-height: 1.5;
}

.package-ranking-group-title {
  color: #285f46;
  font-weight: 800;
}

.package-ranking-group-title.is-sample {
  margin-top: 13px;
  padding-top: 10px;
  border-top: 1px dashed #c9ded2;
  color: #866c3b;
}

.package-ranking-rows {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.package-ranking-entry {
  display: grid;
  grid-template-columns: 26px 30px minmax(0, 1fr) auto;
  align-items: center;
  gap: 7px;
  min-height: 36px;
  padding: 3px 5px;
  border: 1px solid #e0eee7;
  border-radius: 8px;
  background: #fff;
}

.package-ranking-entry:nth-child(-n+3) {
  background: #fffaf0;
}

.package-ranking-entry.is-me {
  border-color: #23a46c;
  background: #f1fbf5;
}

.package-ranking-rows.is-sample .package-ranking-entry {
  border-style: dashed;
  opacity: .85;
}

.package-ranking-position,
.package-ranking-avatar {
  display: grid;
  place-items: center;
}

.package-ranking-number {
  color: #667c71;
  font-size: 12px;
  font-weight: 900;
}

.package-ranking-medal {
  font-size: 20px;
  line-height: 1;
}

.package-ranking-avatar {
  width: 28px;
  height: 28px;
  overflow: hidden;
  border-radius: 50%;
  background: #e2f5ec;
  color: #0a734a;
  font-size: 12px;
  font-weight: 900;
}

.package-ranking-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.package-ranking-name {
  min-width: 0;
  overflow: hidden;
  color: #153b30;
  font-size: 12px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.package-ranking-stars {
  color: #b87911;
  font-size: 12px;
  white-space: nowrap;
}

.package-ranking-mine {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid #d9e9df;
  color: #0a6745;
  font-size: 12px;
  font-weight: 800;
}

.package-collection-list {
  display: grid;
  gap: 8px;
}

.package-collection-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 9px;
  border: 1px solid rgba(208, 224, 216, .82);
  border-radius: 10px;
  background: rgba(248, 253, 250, .78);
}

.package-collection-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  overflow: hidden;
  border-radius: 50%;
  background: linear-gradient(145deg, #fff2bc, #dcf5e8);
  color: #89610c;
  font-weight: 900;
}

.package-collection-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.package-collection-item strong,
.package-collection-item p,
.package-collection-item time {
  display: block;
  margin: 0;
}

.package-collection-item strong {
  color: #123d31;
  font-size: 13px;
}

.package-collection-item p,
.package-collection-item time,
.package-side-empty {
  color: #71877d;
  font-size: 11px;
  line-height: 1.45;
}

.package-collection-item time {
  margin-top: 3px;
}

.package-side-empty {
  margin: 10px 0;
}

.package-side-link {
  display: inline-block;
  margin-top: 12px;
  color: #0b7a50;
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 1240px) {
  .package-dashboard-page .package-lesson-card {
    grid-template-columns: 130px minmax(0, 1fr);
  }

  .package-dashboard-page .lesson-component-grid {
    grid-column: 1 / -1;
  }
}

@media (max-width: 920px) {
  .package-dashboard-layout {
    grid-template-columns: 1fr;
    grid-template-areas:
      "continue"
      "progress"
      "lessons"
      "collections"
      "ranking"
      "basic";
  }

  .package-info-sidebar {
    position: static;
    display: contents;
  }

  .package-continue-panel { grid-area: continue; }
  .package-progress-panel { grid-area: progress; }
  .package-lessons-panel { grid-area: lessons; }
  .package-collection-panel { grid-area: collections; }
  .package-ranking-panel { grid-area: ranking; }
  .package-basic-panel { grid-area: basic; }
}

@media (max-width: 620px) {
  .package-dashboard-page .package-lesson-card {
    grid-template-columns: 1fr;
  }

  .package-dashboard-page .package-lesson-cover {
    min-height: 150px;
  }

  .package-dashboard-page .lesson-component-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .self-study-my-layout,
  .course-bind-layout {
    grid-template-columns: 1fr;
  }

  .course-directory-row {
    grid-template-columns: 44px minmax(160px, .8fr) minmax(240px, 1.4fr) auto;
  }
}

@media (max-width: 720px) {
  .course-directory-head {
    align-items: flex-start;
  }

  .course-directory-row {
    grid-template-columns: 40px minmax(0, 1fr) auto;
  }

  .course-directory-code {
    width: 36px;
    height: 36px;
  }

  .course-directory-components {
    grid-column: 2 / -1;
  }

  .course-directory-meta {
    grid-column: 3;
    grid-row: 1;
  }
}

/* 我的课程包与课程积分榜 */
.self-study-my-layout {
  grid-template-columns: minmax(0, 1fr) 374px;
  gap: 20px;
}

.self-study-main,
.self-study-right-panel {
  min-width: 0;
}

.self-study-package-list {
  gap: 16px;
}

.self-study-package-list .self-study-course-card:not(.self-study-course-skeleton) {
  grid-template-columns: 158px minmax(0, 1fr) 142px;
  align-items: stretch;
  gap: 20px;
  min-height: 248px;
  padding: 16px;
  border-color: #d7e9dd;
  border-radius: 14px;
  background: linear-gradient(130deg, #fff 55%, #f7fcf9);
  box-shadow: 0 9px 28px rgba(30, 93, 59, .05);
  transition: border-color .18s ease, box-shadow .18s ease;
}

.self-study-package-list .self-study-course-card:not(.self-study-course-skeleton):hover {
  border-color: #acd9bd;
  box-shadow: 0 15px 32px rgba(30, 93, 59, .09);
}

.study-card-cover {
  position: relative;
  min-width: 0;
  min-height: 212px;
  overflow: hidden;
  border-radius: 10px;
  background: #e5f4eb;
}

.study-card-cover img,
.study-card-cover-placeholder {
  display: block;
  width: 100%;
  height: 100%;
}

.study-card-cover img {
  object-fit: cover;
}

.study-card-cover-placeholder {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 19px 13px;
  background: radial-gradient(circle at 85% 15%, #b8e4cc, transparent 42%), linear-gradient(150deg, #dff3e9, #94ccb0);
  color: #14553c;
}

.study-card-cover-placeholder b,
.study-card-cover-placeholder i {
  font-size: 11px;
  font-style: normal;
  letter-spacing: .12em;
}

.study-card-cover-placeholder strong {
  max-width: 110px;
  font-size: 28px;
  line-height: 1.14;
}

.study-card-category {
  position: absolute;
  right: 8px;
  bottom: 8px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .94);
  color: #0b734a;
  font-size: 12px;
  font-weight: 900;
  box-shadow: 0 3px 12px rgba(16, 73, 43, .12);
}

.study-card-content {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.study-card-title-row,
.study-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
}

.study-card-title-row {
  margin-bottom: 8px;
}

.study-card-status,
.study-card-grade,
.study-card-meta span {
  padding: 4px 9px;
  border-radius: 999px;
  background: #e7f6ee;
  color: #176d4b;
  font-size: 11px;
  font-weight: 800;
  line-height: 1.3;
}

.study-card-grade {
  background: #f5f6ee;
  color: #607353;
}

.study-card-content h3 {
  font-size: clamp(19px, 1.5vw, 23px);
  line-height: 1.22;
}

.study-card-content > p {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  margin: 7px 0 10px;
  font-size: 14px;
  line-height: 1.5;
}

.study-card-meta {
  margin-bottom: 12px;
}

.study-card-meta span {
  background: #f0f7f2;
  color: #426c56;
}

.study-card-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  margin-top: auto;
}

.study-card-stat-grid > div {
  display: grid;
  gap: 3px;
  min-width: 0;
  padding: 8px 7px;
  border-radius: 8px;
  background: #f4faf6;
}

.study-card-stat-grid small {
  color: #6b8173;
  font-size: 12px;
}

.study-card-stat-grid strong {
  overflow: hidden;
  color: #234b37;
  font-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.study-card-stat-grid .study-card-stars {
  color: #b67512;
}

.study-card-stat-grid em {
  color: #8a9a89;
  font-size: 11px;
  font-style: normal;
}

.study-card-progress {
  height: 7px;
  overflow: hidden;
  margin-top: 10px;
  border-radius: 999px;
  background: #e4efe7;
}

.study-card-progress span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #43b983, #208d60);
}

.study-card-collection {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
  margin-top: 9px;
  color: #778677;
  font-size: 12px;
  font-weight: 800;
}

.study-card-collection.is-earned {
  color: #b27816;
}

.study-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  max-width: 116px;
  overflow: hidden;
  padding: 3px 7px;
  border-radius: 999px;
  background: #fff6df;
  color: #a7731d;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.study-card-badge img {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  object-fit: cover;
}

.self-study-package-list .study-card-actions {
  display: grid;
  align-content: center;
  gap: 8px;
  min-width: 0;
}

.study-card-actions a,
.study-card-actions button,
.study-card-disabled-action {
  display: grid;
  place-items: center;
  min-height: 42px;
  padding: 6px 8px;
  border-radius: 8px;
  font-size: 15px;
  line-height: 1.2;
  text-align: center;
  white-space: normal;
}

.study-card-disabled-action {
  background: #f1f4f0;
  color: #8b998d;
  font-weight: 800;
}

.self-study-right-panel {
  display: block;
  background: linear-gradient(180deg, #fff, #fcfefa);
}

.self-study-scoreboard {
  padding: 0;
  border: 0;
}

.self-study-scoreboard-heading {
  align-items: flex-end;
  margin-bottom: 8px;
}

.self-study-scoreboard-heading h2 {
  margin: 2px 0 0;
  font-size: 20px;
}

.self-study-scoreboard-heading .self-study-ranking-tabs {
  flex: 0 0 168px;
  min-width: 0;
  margin-left: auto;
}

.self-study-board-intro {
  margin: 0 0 13px;
  color: #718477;
  font-size: 12px;
  line-height: 1.5;
}

.self-study-ranking-tabs {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.self-study-ranking-tabs button {
  padding: 7px 0;
  font-size: 11px;
}

.self-study-scoreboard .package-ranking-entry {
  min-height: 40px;
}

.self-study-scoreboard .package-ranking-group-title.is-sample {
  margin-top: 8px;
  padding-top: 0;
  border: 0;
}

.self-study-scoreboard .package-ranking-rows.is-sample .package-ranking-entry {
  opacity: 1;
}

.self-study-board-footnote {
  margin-top: 12px;
  color: #8a947e;
  font-size: 11px;
  line-height: 1.5;
}

.package-ranking-heading .package-ranking-tabs {
  flex: 0 0 128px;
  margin-left: auto;
}

.package-ranking-heading .package-ranking-tabs button {
  padding: 6px 4px;
}

@media (max-width: 1280px) {
  .study-card-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .self-study-my-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .self-study-package-list .self-study-course-card:not(.self-study-course-skeleton) {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 13px;
  }

  .study-card-cover {
    min-height: 154px;
  }

  .study-card-cover-placeholder strong {
    font-size: 20px;
  }

  .self-study-package-list .study-card-actions {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 460px) {
  .self-study-scoreboard-heading {
    flex-wrap: wrap;
  }

  .self-study-scoreboard-heading .self-study-ranking-tabs {
    flex: 1 1 100%;
  }

  .self-study-package-list .self-study-course-card:not(.self-study-course-skeleton) {
    grid-template-columns: 1fr;
  }

  .study-card-cover {
    height: 160px;
    min-height: 0;
  }

  .study-card-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 课程库：双栏布局、紧凑筛选与竖版封面卡片 */
.self-study-catalog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 374px;
  gap: 20px;
  align-items: start;
}

.self-study-catalog-layout > * {
  min-width: 0;
}

.self-study-catalog-panel {
  gap: 20px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .96), rgba(247, 252, 249, .94));
}

.catalog-panel-heading {
  align-items: center;
}

.catalog-panel-heading h2 {
  margin-top: 2px;
}

.self-study-catalog-panel .primary-action,
.self-study-catalog-panel .ghost-action {
  display: inline-flex;
  box-sizing: border-box;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding-top: 0;
  padding-bottom: 0;
  line-height: 1.2;
  text-align: center;
}

.catalog-back-action {
  min-width: 144px;
  white-space: nowrap;
}

.catalog-filter-panel {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid rgba(208, 224, 216, .86);
  border-radius: 14px;
  background: rgba(241, 249, 245, .74);
}

.self-study-search.catalog-search {
  grid-template-columns: minmax(0, 1fr) 92px 82px;
  gap: 10px;
  margin: 0;
}

.catalog-search input {
  min-height: 46px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .94);
}

.catalog-search .primary-action,
.catalog-search .ghost-action {
  width: 100%;
  min-width: 0;
  border-radius: 10px;
}

.catalog-status-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  margin: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.catalog-status-tabs::-webkit-scrollbar {
  display: none;
}

.catalog-status-tabs .filter-chip {
  flex: 0 0 auto;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
}

.catalog-course-list {
  gap: 14px;
}

.catalog-package-card {
  grid-template-columns: 122px minmax(0, 1fr) 148px;
  align-items: stretch;
  gap: 20px;
  min-height: 198px;
  padding: 16px;
  border-color: #d8e8dd;
  border-radius: 16px;
  background: linear-gradient(128deg, #fff 56%, #f5fbf7);
  box-shadow: 0 8px 24px rgba(26, 86, 55, .055);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.catalog-package-card:hover {
  border-color: #add8bd;
  box-shadow: 0 14px 30px rgba(26, 86, 55, .095);
  transform: translateY(-1px);
}

.catalog-card-cover {
  position: relative;
  min-width: 0;
  min-height: 166px;
  overflow: hidden;
  border-radius: 12px;
  background: #dff2e7;
  box-shadow: inset 0 0 0 1px rgba(21, 105, 70, .08);
}

.catalog-card-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.catalog-card-cover > span {
  position: absolute;
  right: 8px;
  bottom: 8px;
  max-width: calc(100% - 16px);
  overflow: hidden;
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .92);
  color: #146d49;
  font-size: 11px;
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.catalog-card-cover--placeholder {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px 12px;
  background:
    radial-gradient(circle at 82% 16%, rgba(255, 239, 181, .86), transparent 34%),
    linear-gradient(150deg, #dff4e8, #9fd2b6);
  color: #14553c;
}

.catalog-card-cover--placeholder small {
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .12em;
}

.catalog-card-cover--placeholder strong {
  max-width: 96px;
  font-size: 28px;
  line-height: 1.08;
}

.catalog-card-content {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
}

.catalog-card-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.catalog-card-title-row > div {
  min-width: 0;
}

.catalog-card-series {
  margin: 0 0 4px !important;
  color: #779083 !important;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.catalog-card-content h3 {
  font-size: clamp(19px, 1.45vw, 23px);
  line-height: 1.25;
}

.catalog-card-content > p {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.6;
}

.catalog-card-status {
  flex: 0 0 auto;
  padding: 5px 9px;
  border-radius: 999px;
  background: #edf5ef;
  color: #4f7060;
  font-size: 11px;
  font-weight: 900;
  white-space: nowrap;
}

.catalog-card-status.is-joined {
  background: #fff3d9;
  color: #916210;
}

.catalog-card-status.is-bound {
  background: #e3f5ec;
  color: #12724a;
}

.catalog-card-status.is-available {
  background: #edf3f0;
  color: #5d7167;
}

.catalog-package-card .course-tags {
  margin-top: 12px;
}

.catalog-package-card .course-tags span {
  min-height: 24px;
  padding: 0 9px;
  background: #edf7f1;
  font-size: 12px;
}

.catalog-package-card .course-actions {
  display: grid;
  align-content: center;
  gap: 10px;
  min-width: 0;
}

.catalog-package-card .course-actions a {
  display: inline-flex;
  width: 100%;
  min-height: 46px;
  padding: 0 12px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  line-height: 1.25;
  text-align: center;
  white-space: normal;
}

.catalog-ranking-panel {
  position: sticky;
  top: 20px;
  background: linear-gradient(180deg, #fff, #fbfefa);
}

@media (max-width: 1180px) {
  .self-study-catalog-layout {
    grid-template-columns: minmax(0, 1fr) 334px;
  }

  .catalog-package-card {
    grid-template-columns: 108px minmax(0, 1fr) 132px;
    gap: 14px;
  }
}

@media (max-width: 980px) {
  .self-study-catalog-layout {
    grid-template-columns: 1fr;
  }

  .catalog-ranking-panel {
    position: static;
  }
}

@media (max-width: 700px) {
  .catalog-panel-heading {
    align-items: flex-start;
  }

  .catalog-package-card {
    grid-template-columns: 100px minmax(0, 1fr);
  }

  .catalog-card-cover {
    min-height: 150px;
  }

  .catalog-package-card .course-actions {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .catalog-panel-heading {
    flex-wrap: wrap;
  }

  .catalog-back-action {
    min-width: 0;
  }

  .self-study-search.catalog-search {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .catalog-search input {
    grid-column: 1 / -1;
  }

  .catalog-package-card {
    grid-template-columns: 1fr;
  }

  .catalog-card-cover {
    height: 184px;
    min-height: 0;
  }

  .catalog-card-cover--placeholder strong {
    max-width: 160px;
  }

  .catalog-card-title-row {
    flex-wrap: wrap;
  }
}

/* 课程包封面统一使用竖版照片比例，统计区保持紧凑。 */
.study-card-stat-grid .study-card-stars {
  display: flex;
  align-items: center;
  gap: 5px;
}

.study-card-star-icon {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  object-fit: contain;
}

@media (min-width: 701px) {
  .self-study-package-list .self-study-course-card:not(.self-study-course-skeleton) {
    grid-template-columns: 176px minmax(0, 1fr) 128px;
    align-items: start;
    gap: 16px;
    min-height: 0;
    padding: 12px;
  }

  .study-card-cover {
    align-self: start;
    width: 100%;
    height: auto;
    min-height: 0;
    aspect-ratio: 3 / 4;
    border-radius: 8px;
  }

  .study-card-title-row { margin-bottom: 6px; }
  .study-card-content h3 { margin: 0; }
  .study-card-content > p {
    -webkit-line-clamp: 1;
    margin: 5px 0 7px;
  }
  .study-card-meta { margin-bottom: 8px; }
  .study-card-stat-grid > div {
    min-height: 58px;
    align-content: space-between;
    padding: 6px;
  }
  .study-card-progress { margin-top: 8px; }
  .study-card-collection { margin-top: 7px; }
  .self-study-package-list .study-card-actions { gap: 6px; }
  .study-card-actions a,
  .study-card-actions button,
  .study-card-disabled-action {
    min-height: 36px;
    padding: 4px 8px;
    font-size: 14px;
  }
}

@media (max-width: 700px) {
  .self-study-package-list .self-study-course-card:not(.self-study-course-skeleton) {
    grid-template-columns: 140px minmax(0, 1fr);
    align-items: start;
    min-height: 0;
    padding: 12px;
  }

  .study-card-cover {
    align-self: start;
    width: 100%;
    height: auto;
    min-height: 0;
    aspect-ratio: 3 / 4;
  }
}

@media (max-width: 460px) {
  .self-study-package-list .self-study-course-card:not(.self-study-course-skeleton) {
    grid-template-columns: 1fr;
  }

  .study-card-cover {
    justify-self: center;
    width: min(100%, 220px);
    height: auto;
    aspect-ratio: 3 / 4;
  }
}