/* ============================================================
   v3.1 ハブ化改訂版 差分CSS（pfo-mock-final.css を継承）
   .pfo-mock-v31 スコープで上書き＋新規要素追加
   - セクション「記事」「要点」削除
   - 「カテゴリから探す」を製造カテゴリカード＋タグクラウドに拡充
   - Hero statsを2枠化
   - 画像プレースホルダを picsum.photos で仮配置
   ============================================================ */

/* ========= Hero 背景画像対応 ========= */
.pfo-mock-v31 .pfo-hero {
  position: relative;
  background: var(--pfo-sub-faint);
  overflow: hidden;
  isolation: isolate;
}
.pfo-mock-v31 .pfo-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: grayscale(0.15) contrast(0.95) brightness(1.02);
  z-index: -2;
}
.pfo-mock-v31 .pfo-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(237, 240, 229, 0.96) 0%,
    rgba(237, 240, 229, 0.88) 45%,
    rgba(168, 184, 142, 0.55) 100%
  );
  z-index: -1;
}

/* Hero stats: 2枠化 */
.pfo-mock-v31 .pfo-hero__stats--two {
  grid-template-columns: repeat(2, 1fr);
}

/* ========= Categories Hub 見出し ========= */
.pfo-mock-v31 .pfo-cats-hub__heading {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin: 8px 0 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--pfo-sub);
}
.pfo-mock-v31 .pfo-cats-hub__heading--sub {
  margin-top: 64px;
}
.pfo-mock-v31 .pfo-cats-hub__heading-en {
  font-family: var(--pfo-font-label);
  font-style: italic;
  font-size: 16px;
  letter-spacing: 0.18em;
  color: var(--pfo-main);
  text-transform: uppercase;
}
.pfo-mock-v31 .pfo-cats-hub__heading-jp {
  font-family: var(--pfo-font-serif);
  font-size: 24px;
  font-weight: 600;
  color: var(--pfo-text);
  line-height: 1.4;
}

/* ========= 3-A カード式カテゴリ ========= */
.pfo-mock-v31 .pfo-cats-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.pfo-mock-v31 .pfo-cat-card {
  display: grid;
  grid-template-rows: 140px 1fr;
  background: #fff;
  border: 1px solid var(--pfo-sub);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  position: relative;
}
.pfo-mock-v31 .pfo-cat-card:hover {
  transform: translateY(-2px);
  border-color: var(--pfo-main);
  box-shadow: 0 8px 22px rgba(31, 40, 23, 0.08);
}
.pfo-mock-v31 .pfo-cat-card__visual {
  position: relative;
  background-size: cover;
  background-position: center;
  display: block;
}
.pfo-mock-v31 .pfo-cat-card__tint {
  position: absolute;
  inset: 0;
  display: block;
  mix-blend-mode: multiply;
  opacity: 0.85;
}
.pfo-mock-v31 .pfo-cat-card__body {
  padding: 16px 18px 18px;
  display: grid;
  grid-template-areas:
    "num en"
    "name name"
    "desc desc"
    "count count";
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  position: relative;
}
.pfo-mock-v31 .pfo-cat-card__num {
  grid-area: num;
  font-family: var(--pfo-font-label);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--cat-accent, var(--pfo-main));
  font-weight: 600;
}
.pfo-mock-v31 .pfo-cat-card__en {
  grid-area: en;
  font-family: var(--pfo-font-label);
  font-style: italic;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--pfo-text-sub);
  text-transform: uppercase;
  text-align: right;
  line-height: 1.4;
}
.pfo-mock-v31 .pfo-cat-card__name {
  grid-area: name;
  font-family: var(--pfo-font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--pfo-text);
  margin-top: 4px;
}
.pfo-mock-v31 .pfo-cat-card__desc {
  grid-area: desc;
  font-size: 11.5px;
  color: var(--pfo-text-sub);
  line-height: 1.7;
  margin-top: 2px;
}
.pfo-mock-v31 .pfo-cat-card__count {
  grid-area: count;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--pfo-sub);
  font-family: var(--pfo-font-label);
  font-style: italic;
  font-size: 14px;
  color: var(--cat-accent, var(--pfo-main));
  letter-spacing: 0.06em;
  font-weight: 600;
}
.pfo-mock-v31 .pfo-cat-card__count small {
  font-size: 11px;
  color: var(--pfo-text-sub);
  margin-left: 4px;
  font-weight: 400;
}

/* ========= 3-B タグクラウド ========= */
.pfo-mock-v31 .pfo-tags {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.pfo-mock-v31 .pfo-tag-group {
  padding: 20px 24px;
  background: var(--pfo-sub-faint);
  border-left: 3px solid var(--pfo-main);
}
.pfo-mock-v31 .pfo-tag-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}
.pfo-mock-v31 .pfo-tag-group__en {
  font-family: var(--pfo-font-label);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--pfo-main);
  text-transform: uppercase;
  font-weight: 600;
}
.pfo-mock-v31 .pfo-tag-group__jp {
  font-family: var(--pfo-font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--pfo-text);
}
.pfo-mock-v31 .pfo-tag-group__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}
.pfo-mock-v31 .pfo-tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: #fff;
  border: 1px solid var(--pfo-sub);
  border-radius: 999px;
  font-size: 15px;
  color: var(--pfo-text);
  font-family: var(--pfo-font-sans);
  transition: background .15s, border-color .15s, color .15s, transform .15s;
  line-height: 1.4;
}
.pfo-mock-v31 .pfo-tag:hover {
  background: var(--pfo-main);
  color: #fff;
  border-color: var(--pfo-main);
  transform: translateY(-1px);
}

/* ========= Maker 画像対応（既存プレースホルダを背景画像化） ========= */
.pfo-mock-v31 .pfo-maker__img {
  display: block;
  background-color: var(--pfo-sub-faint);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 220px;
  align-self: stretch;
}
.pfo-mock-v31 .pfo-maker__img::before { content: none; }
@media (max-width: 900px) {
  .pfo-mock-v31 .pfo-maker__img {
    aspect-ratio: 16 / 9;
    min-height: 0;
  }
}

/* ========= Footer Business エリア（掲載案内・広告案内への動線） ========= */
.pfo-mock-v31 .pfo-footer__biz {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  margin-top: 24px;
}
.pfo-mock-v31 .pfo-footer__biz-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  transition: background .15s, border-color .15s;
}
.pfo-mock-v31 .pfo-footer__biz-link:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.4);
}
.pfo-mock-v31 .pfo-footer__biz-link[aria-current="page"] {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.5);
}
.pfo-mock-v31 .pfo-footer__biz-label {
  font-family: var(--pfo-font-label);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.18em;
  opacity: 0.8;
  text-transform: uppercase;
}
.pfo-mock-v31 .pfo-footer__biz-title {
  font-family: var(--pfo-font-serif);
  font-size: 15px;
  font-weight: 600;
}

/* ========= Footer 上部バンド ========= */
.pfo-mock-v31 .pfo-footer {
  position: relative;
  isolation: isolate;
}
.pfo-mock-v31 .pfo-footer__band {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 120px;
  background-size: cover;
  background-position: center;
  z-index: 0;
  opacity: 0.28;
  pointer-events: none;
  mask-image: linear-gradient(180deg, #000 0%, #000 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 60%, transparent 100%);
}
.pfo-mock-v31 .pfo-footer__inner {
  position: relative;
  z-index: 1;
}

/* ========= レスポンシブ ========= */
@media (max-width: 900px) {
  .pfo-mock-v31 .pfo-cats-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .pfo-mock-v31 .pfo-hero__stats--two {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 900px) {
  .pfo-mock-v31 .pfo-footer__biz { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .pfo-mock-v31 .pfo-cats-cards {
    grid-template-columns: 1fr;
  }
  .pfo-mock-v31 .pfo-cat-card {
    grid-template-rows: 120px 1fr;
  }
  .pfo-mock-v31 .pfo-tag-group {
    padding: 16px 18px;
  }
}