/* Editorial learning chapters: local layout only, retaining product demos and controls. */
.learning-introduction.is-learning-scene { height: 115svh; }
.learning-introduction.is-learning-scene .journey-next {
  height: 90svh;
  min-height: 620px;
  padding-block: 112px 64px;
}
.learning-introduction.is-learning-scene + .learning { margin-top: -12svh; }
.learning.wrap { width: min(1320px, calc(100% - 96px)); max-width: 1320px; }
.learning .story-row {
  gap: 64px;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.learning .story-copy { max-width: 500px; }
.learning .learning-step {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 24px;
}
.learning .learning-step > span {
  color: #bdd3f2;
  font: 500 72px/1 Inter, Arial, sans-serif;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
}
.learning .learning-step > strong { color: var(--blue); font-size: 16px; font-weight: 600; }
.learning .story-copy h3 { font-size: clamp(30px, 2.8vw, 40px); line-height: 1.18; }
.learning .story-copy p { font-size: 18px; line-height: 1.65; max-width: 46ch; }
.learning .learning-connector { height: 104px; margin-block: 24px; }
.learning .learning-demo { transform: scale(1.04); }

.chapter-feedback.chapter-surface { padding-block: 88px 72px; }
.chapter-feedback .feedback.wrap {
  width: min(1360px, calc(100% - 96px));
  max-width: 1360px;
  display: grid;
  grid-template-columns: minmax(230px, .82fr) minmax(0, 2.75fr);
  align-items: start;
  gap: 48px;
  padding-top: 72px;
  border-top: 1px solid var(--line);
}
.chapter-feedback .feedback > header { text-align: left; margin: 0; padding-top: 4px; }
.chapter-feedback .feedback .fb-heading {
  font-size: clamp(34px, 3vw, 44px);
  line-height: 1.16;
  letter-spacing: -.035em;
  text-wrap: balance;
}
.chapter-feedback .feedback .fb-heading br { display: block; }
.chapter-feedback .feedback > header p { margin: 24px 0 0; font-size: 17px; line-height: 1.65; }
.chapter-feedback .feedback > header p br { display: none; }
.chapter-feedback .feedback .fb-gallery { min-width: 0; gap: 12px; }
.chapter-feedback .feedback .fb-panel { min-height: 560px; border-radius: 16px; }
.chapter-feedback .feedback .fb-panel-toggle { padding: 24px 20px 0; gap: 28px; }
.chapter-feedback .feedback .fb-toggle-symbol { right: 16px; top: 20px; }
.chapter-feedback .feedback .fb-panel-title { font-size: 23px; text-wrap: initial; }
.chapter-feedback .feedback .fb-active .fb-panel-title { font-size: 27px; }
.chapter-feedback .feedback .fb-cover { padding: 20px; min-height: 200px; }
.chapter-feedback .feedback .fb-cover-description { font-size: 16px; line-height: 1.6; }
.chapter-feedback .feedback .fb-detail { padding: 24px 20px; }
.chapter-feedback .feedback .fb-stage-visual { padding: 10px; }
.chapter-feedback .feedback .fb-stage-copy p { font-size: 16px; }
.chapter-feedback .feedback .fb-stage-copy .fb-status-guide p,
.chapter-feedback .feedback .fb-stage-copy .fb-unlock p,
.chapter-feedback .feedback .fb-stage-copy .fb-reward-note { font-size: 13px; }
.chapter-feedback .feedback .fb-cover-bottom { font-size: 12px; }

@media (max-width: 1350px) {
  .chapter-feedback .feedback.wrap { display: block; }
  .chapter-feedback .feedback > header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-bottom: 112px;
  }
  .chapter-feedback .feedback > header p { margin: 0; }
  .chapter-feedback .feedback .fb-panel { min-height: 520px; }
}
@media (max-width: 900px) {
  .learning.wrap, .chapter-feedback .feedback.wrap { width: calc(100% - 64px); }
  .learning .story-row { gap: 32px; }
  .learning .learning-step > span { font-size: 60px; }
}
@media (max-width: 850px) {
  .chapter-feedback .feedback .fb-panel { min-height: 0; }
}
@media (max-width: 760px) {
  .learning.wrap, .chapter-feedback .feedback.wrap { width: calc(100% - 40px); }
  .learning .story-row { margin-top: 0; padding-top: 24px; gap: 20px; }
  .learning .learning-step { margin-bottom: 20px; gap: 16px; }
  .learning .learning-step > span { font-size: 52px; }
  .learning .story-copy h3 { font-size: 31px; }
  .learning .story-copy p { font-size: 17px; }
  .learning .learning-connector { height: 72px; margin-block: 16px; }
  .learning .learning-demo { transform: none; }
  .chapter-feedback.chapter-surface { padding-block: 48px 56px; }
  .chapter-feedback .feedback.wrap { padding-top: 40px; }
  .chapter-feedback .feedback > header { display: block; margin-bottom: 104px; }
  .chapter-feedback .feedback .fb-heading { font-size: 36px; max-width: 15ch; }
  .chapter-feedback .feedback > header p { margin-top: 20px; }
  .chapter-feedback .feedback .fb-panel { min-height: 0; }
  .chapter-feedback .feedback .fb-panel-toggle { padding-bottom: 20px; }
  .chapter-feedback .feedback .fb-panel-title { font-size: 26px; }
  .chapter-feedback .feedback .fb-detail { padding-top: 0; }
  .chapter-feedback .feedback .fb-cover { padding-top: 0; min-height: 176px; }
}