/* 看圖美化：learn（_build/polish.py） */
body .c-demo-banner {
  margin-bottom: var(--sp-4);
  border-radius: var(--r-input);
  border: 1px solid var(--border);
  align-items: center;
  gap: var(--sp-3);
}
body .c-demo-banner > :nth-child(2) {
  flex: 1 1 auto;
  min-width: 0;
  text-align: left;
}
body .c-demo-banner .c-btn {
  flex: none;
  white-space: nowrap;
}

/* ---------- 頂部三張大卡：用 grid 固定「圖示｜文字｜箭頭」 ---------- */
body .s-learn__tops {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
  margin-bottom: var(--sp-2);
}
@container view (min-width: 560px) {
  body .s-learn__tops {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-4);
  }
  body .s-learn__tops > :last-child {
    grid-column: 1 / -1;
  }
}

body .s-learn__tops > .c-learn-card,
body .s-learn__tops > .c-help-btn {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 20px;
  column-gap: var(--sp-4);
  align-items: start;
  min-height: 0;
  padding: var(--sp-5);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  font-size: var(--fs-body);
  font-weight: 400;
  text-align: left;
  color: var(--text);
}
body .s-learn__tops > .c-learn-card > .s-learn__icon {
  grid-column: 1;
  width: 48px;
  height: 48px;
}
body .s-learn__tops > .c-learn-card > .s-learn__body {
  grid-column: 2;
  gap: var(--sp-2);
}
body .s-learn__tops > .c-learn-card > svg:last-child {
  grid-column: 3;
  align-self: center;
  width: 20px;
  height: 20px;
}

/* 需要協助：保持安全入口的辨識度，但不用警示紅 */
body .s-learn__tops > .c-help-btn {
  background: var(--primary-tint);
  border-color: var(--primary-soft);
}
body .s-learn__tops > .c-help-btn > .s-learn__icon {
  background: var(--surface);
  box-shadow: var(--shadow-1);
}

body .s-learn__body > .c-card__title {
  font-size: var(--fs-title3);
  line-height: 1.35;
}
body .s-learn__body > .u-muted {
  font-size: var(--fs-callout);
  line-height: 1.5;
  color: var(--text-2);
}

/* 回診提示：獨立淡底區塊、自訂項目符號 */
body .s-learn__tips {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-2);
  margin: var(--sp-2) 0 0;
  padding: var(--sp-3) var(--sp-4);
  columns: auto;
  border-radius: var(--r-input);
  background: var(--surface-2);
  font-size: var(--fs-callout);
  line-height: 1.5;
  color: var(--text-2);
}
body .s-learn__tips > li {
  position: relative;
  margin: 0;
  padding-left: var(--sp-4);
}
body .s-learn__tips > li + li {
  margin: 0;
}
body .s-learn__tips > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
@container view (min-width: 680px) {
  body .s-learn__tips {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-5);
    padding: var(--sp-4) var(--sp-5);
  }
}

/* ---------- 區段標題 ---------- */
body .s-learn__heading {
  margin: var(--sp-8) 0 var(--sp-2);
}
body .s-learn__heading + p:empty {
  display: none;
}
body .s-learn__heading + p {
  margin-bottom: var(--sp-4);
}

/* ---------- 情境卡：橫向緊湊版（圖示｜標題＋標籤｜箭頭） ---------- */
body .s-learn__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
}
@container view (min-width: 520px) {
  body .s-learn__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@container view (min-width: 820px) {
  body .s-learn__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@container view (min-width: 1080px) {
  body .s-learn__grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

body .s-learn__grid > .c-learn-card {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 12px;
  grid-template-areas:
    "ic t cv"
    "ic s cv"
    "ic g cv";
  column-gap: var(--sp-3);
  row-gap: 0;
  align-items: center;
  min-height: 76px;
  padding: var(--sp-4);
  box-shadow: var(--shadow-1);
}
body .s-learn__grid > .c-learn-card > .s-learn__icon {
  grid-area: ic;
  align-self: center;
  width: 44px;
  height: 44px;
}
body .s-learn__grid > .c-learn-card > .c-card__title {
  grid-area: t;
  font-size: var(--fs-body);
  line-height: 1.35;
}
body .s-learn__grid > .c-learn-card > .u-muted {
  grid-area: s;
  margin-top: var(--sp-1);
  font-size: var(--fs-footnote);
  line-height: 1.45;
  color: var(--text-2);
}
body .s-learn__grid > .c-learn-card > .u-muted:empty {
  display: none;
}
body .s-learn__grid > .c-learn-card > .c-edu-tag {
  grid-area: g;
  justify-self: start;
  margin-top: var(--sp-2);
}
body .s-learn__grid > .c-learn-card::after {
  content: "";
  grid-area: cv;
  justify-self: end;
  align-self: center;
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--text-3);
  border-right: 2px solid var(--text-3);
  transform: rotate(45deg);
  transition: transform var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}

@media (hover: hover) and (pointer: fine) {
  body .s-learn__grid > .c-learn-card:hover::after {
    border-color: var(--primary);
    transform: translateX(2px) rotate(45deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  body .s-learn__grid > .c-learn-card::after {
    transition-duration: 0.01ms;
    transform: rotate(45deg);
  }
}

/* ---------- 矮螢幕 ---------- */
@media (orientation: landscape) and (max-height: 500px) {
  body .s-learn__heading { margin-top: var(--sp-5); }
  body .s-learn__tops > .c-learn-card,
  body .s-learn__tops > .c-help-btn { padding: var(--sp-4); }
  body .s-learn__grid > .c-learn-card { min-height: 64px; }
}