/* ===========================================================================
   記事一覧（/articles）のカードレイアウト。
   デザイン定義（studio.css）の素の一覧を置き換える、手書きのスタイル。
   .render-canvas 直下では line-height:1・font-family:sans-serif・color:#333 に
   リセットされるため、文字まわりはすべて明示的に指定する。
   =========================================================================== */
.render-canvas .article-index {
  --ai-ink: #1a2530;
  --ai-muted: #5d6a77;
  --ai-faint: #8a94a0;
  --ai-line: #e5eaf0;
  --ai-brand: #1c4f86;
  font-family: var(--s-font-7e802861), "Noto Sans JP", sans-serif;
  margin-top: 14px;
  width: 100%;
}

/* ---- カテゴリの絞り込み（カテゴリが 2 つ以上あるときだけ出す）---- */
.render-canvas .article-index__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}

.render-canvas .article-chip {
  border: 1px solid var(--ai-line);
  border-radius: 999px;
  color: var(--ai-muted);
  display: inline-block;
  font-size: 13px;
  line-height: 1;
  padding: 10px 16px;
}

.render-canvas .article-chip:hover {
  border-color: #cfdceb;
  color: var(--ai-brand);
}

.render-canvas .article-chip.is-current {
  background: var(--ai-brand);
  border-color: var(--ai-brand);
  color: #fff;
}

/* ---- カードの並び ---- */
.render-canvas .article-index__grid {
  display: grid;
  gap: 30px 24px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.render-canvas .article-card {
  background: #fff;
  border: 1px solid var(--ai-line);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.render-canvas .article-card:hover {
  border-color: #cfdceb;
  box-shadow: 0 10px 28px rgba(28, 79, 134, 0.1);
  transform: translateY(-3px);
}

.render-canvas .article-card__thumb {
  aspect-ratio: 3 / 2;
  background-color: #eef2f6;
  background-image: var(--bg);
  background-position: center;
  background-size: cover;
  display: block;
  width: 100%;
}

.render-canvas .article-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 10px;
  padding: 18px 18px 20px;
}

.render-canvas .article-card__meta {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.render-canvas .article-card__cat {
  background: #eaf1fa;
  border-radius: 999px;
  color: var(--ai-brand);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  padding: 6px 10px;
}

.render-canvas .article-card__date {
  color: var(--ai-faint);
  font-size: 12px;
  letter-spacing: 0.03em;
  line-height: 1;
}

/* タイトルは 3 行、抜粋は 2 行で打ち切って、カードの高さを揃える。 */
.render-canvas .article-card__title {
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  color: var(--ai-ink);
  display: -webkit-box;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.6;
  overflow: hidden;
}

.render-canvas .article-card__excerpt {
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  color: var(--ai-muted);
  display: -webkit-box;
  font-size: 13px;
  letter-spacing: 0.01em;
  line-height: 1.85;
  overflow: hidden;
}

.render-canvas .article-card__more {
  color: var(--ai-brand);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  margin-top: auto;
  padding-top: 6px;
}

.render-canvas .article-card__more::after {
  content: "→";
  display: inline-block;
  margin-left: 6px;
  transition: transform 0.2s ease;
}

.render-canvas .article-card:hover .article-card__more::after {
  transform: translateX(3px);
}

/* ---- もっと見る ---- */
.render-canvas .article-index__more {
  display: flex;
  justify-content: center;
  margin-top: 46px;
}

.render-canvas .article-index__more-link {
  border: 1px solid var(--ai-brand);
  border-radius: 999px;
  color: var(--ai-brand);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  padding: 16px 44px;
}

.render-canvas .article-index__more-link:hover {
  background: var(--ai-brand);
  color: #fff;
}

/* ---- 記事が 1 件も無いとき ---- */
.render-canvas .article-index__empty {
  border: 1px dashed var(--ai-line);
  border-radius: 14px;
  color: var(--ai-muted);
  font-size: 14px;
  line-height: 1.8;
  padding: 48px 20px;
  text-align: center;
}

/* ---- 画面幅に合わせた段組み ---- */
@media screen and (max-width: 1080px) {
  .render-canvas .article-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media screen and (max-width: 680px) {
  .render-canvas .article-index {
    margin-top: 0;
  }
  .render-canvas .article-index__grid {
    gap: 18px;
    grid-template-columns: minmax(0, 1fr);
  }
  .render-canvas .article-card__body {
    padding: 16px 16px 18px;
  }
  .render-canvas .article-card__title {
    font-size: 15.5px;
  }
  .render-canvas .article-index__more {
    margin-top: 32px;
  }
}