/* ========== AREC_AIDX_CARDS_START (2026-08-27 AI・DXセクション カード化) ========== */
.arec-aidx {
  width: min(1200px, 92%);
  margin: 0 auto;
  padding: 0 0 12px;
  color: #172640;
  text-align: left;
  box-sizing: border-box;
}

.arec-aidx__catch {
  margin: 0 0 6px;
  color: #4f63c7;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .06em;
  text-align: center;
}

.arec-aidx__lead {
  margin: 0 auto 30px;
  max-width: 760px;
  font-size: 16px;
  line-height: 1.85;
  text-align: center;
}

.arec-aidx__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* 1024px以上で3列。それ未満は1列にして、右側に空きが出ないようにする。 */
@media screen and (min-width: 1024px) {
  .arec-aidx__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.arec-aidx__card {
  margin: 0;
  padding: 0;
  list-style: none;
  background: none;
}

.arec-aidx__card::before,
.arec-aidx__card::after { content: none; }

.arec-aidx__card > a {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #fff;
  border: 1px solid #dfe4ef;
  border-top: 4px solid #4057bd;
  border-radius: 6px;
  overflow: hidden;
  color: #172640;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(42, 72, 132, .09);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.arec-aidx__card > a:hover,
.arec-aidx__card > a:focus-visible {
  transform: translateY(-4px);
  border-color: #4057bd;
  box-shadow: 0 14px 30px rgba(42, 72, 132, .2);
}

.arec-aidx__thumb {
  display: block;
  overflow: hidden;
  background: #eef2fa;
}

.arec-aidx__thumb img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform .35s ease;
}

.arec-aidx__card > a:hover .arec-aidx__thumb img,
.arec-aidx__card > a:focus-visible .arec-aidx__thumb img {
  transform: scale(1.04);
}

.arec-aidx__body {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  padding: 20px 22px 22px;
}

.arec-aidx__name {
  display: block;
  margin: 0 0 12px;
  text-align: left;
  font-size: 21px;
  font-weight: 800;
  line-height: 1.4;
  color: #172640;
}

.arec-aidx__name b {
  display: block;
  margin-top: 4px;
  color: #8d97b5;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
}

.arec-aidx__text {
  display: block;
  flex: 1 1 auto;
  margin: 0 0 16px;
  text-align: left;
  font-size: 15px;
  line-height: 1.85;
  color: #3d4a63;
}

.arec-aidx__more {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  min-height: 44px;
  padding: 10px 20px;
  background: #4057bd;
  border-radius: 5px;
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.2;
}

.arec-aidx__more::after {
  content: "→";
  margin-left: 8px;
  font-weight: 700;
}

.arec-aidx__card > a:hover .arec-aidx__more,
.arec-aidx__card > a:focus-visible .arec-aidx__more {
  background: #2f45a3;
}

.arec-aidx__note {
  margin: 30px 0 0;
  font-size: 14px;
  line-height: 1.8;
  text-align: center;
  color: #4a5570;
}

.arec-aidx__note a {
  color: #4057bd;
  font-weight: 700;
  text-decoration: underline;
}

/* タブレット〜小型ノート（600〜1023px）は横並びカードにして横幅を使い切る。 */
@media screen and (min-width: 600px) and (max-width: 1023px) {
  .arec-aidx__grid { gap: 20px; }
  .arec-aidx__card > a { flex-direction: row; align-items: stretch; }
  .arec-aidx__thumb { flex: 0 0 38%; max-width: 38%; }
  .arec-aidx__thumb img { height: 100%; aspect-ratio: auto; min-height: 190px; }
  .arec-aidx__body { flex: 1 1 auto; padding: 20px 24px; justify-content: center; }
}

@media screen and (max-width: 599px) {
  .arec-aidx { width: 92%; }
  .arec-aidx__grid { gap: 20px; }
  .arec-aidx__lead { margin-bottom: 24px; font-size: 15px; text-align: left; }
  .arec-aidx__body { padding: 18px 18px 20px; }
  .arec-aidx__name { font-size: 20px; }
  .arec-aidx__more { width: 100%; justify-content: center; align-self: stretch; }
}

@media (prefers-reduced-motion: reduce) {
  .arec-aidx__card > a,
  .arec-aidx__thumb img { transition: none; }
  .arec-aidx__card > a:hover { transform: none; }
  .arec-aidx__card > a:hover .arec-aidx__thumb img { transform: none; }
}
/* ========== AREC_AIDX_CARDS_END ========== */