/* =========================================
   千原組 下層ページ共通 CSS
   pages.css
   ========================================= */

/* ===== パンくず ===== */
.pg-breadcrumb {
  padding: 16px var(--ch-pad-x);
  background: var(--ch-cream);
  margin-top: 85px;
  border-bottom: 1px solid var(--ch-line);
}
.pg-breadcrumb__inner {
  max-width: var(--ch-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--ch-font-mincho);
  font-size: 12px;
  color: var(--ch-gray);
}
.pg-breadcrumb__inner a { color: var(--ch-gray); transition: color .3s ease; }
.pg-breadcrumb__inner a:hover { color: var(--ch-navy); }
.pg-breadcrumb__inner span { color: var(--ch-line); }

/* ===== ページヒーロー ===== */
.pg-hero {
  position: relative;
  padding: 100px var(--ch-pad-x);
  background: linear-gradient(135deg, var(--ch-navy) 0%, var(--ch-navy-dark) 100%);
  color: #fff;
  overflow: hidden;
}
.pg-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(42, 143, 179, 0.2), transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(196, 77, 63, 0.08), transparent 50%);
}
.pg-hero__inner {
  max-width: var(--ch-max);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.pg-hero__en {
  font-family: var(--ch-font-mincho);
  font-size: 13px;
  letter-spacing: .3em;
  color: var(--ch-blue-light);
  margin-bottom: 16px;
}
.pg-hero__title {
  font-family: var(--ch-font-mincho);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 600;
  color: #fff;
  letter-spacing: .05em;
  line-height: 1.3;
  margin-bottom: 16px;
}
.pg-hero__desc {
  font-family: var(--ch-font-mincho);
  font-size: 14px;
  line-height: 2;
  color: rgba(255,255,255,.75);
  max-width: 700px;
}

/* ===== 共通セクションラベル ===== */
.pg-section-label {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--ch-font-mincho);
  margin-bottom: 32px;
}
.pg-section-label__num {
  font-size: 14px;
  color: var(--ch-blue);
  letter-spacing: .1em;
}
.pg-section-label__en {
  font-size: 18px;
  letter-spacing: .15em;
  color: var(--ch-navy);
  font-weight: 500;
}
.pg-section-label__jp {
  font-size: 13px;
  color: var(--ch-gray);
  padding-left: 16px;
  border-left: 1px solid var(--ch-line);
}
.pg-section-label--light .pg-section-label__num,
.pg-section-label--light .pg-section-label__en { color: rgba(255,255,255,.9); }
.pg-section-label--light .pg-section-label__jp {
  color: rgba(255,255,255,.6);
  border-color: rgba(255,255,255,.2);
}

/* ===== 共通セクション ===== */
.pg-section {
  padding: 120px var(--ch-pad-x);
}
.pg-section--cream { background: var(--ch-cream); }
.pg-section--paper { background: var(--ch-paper); }
.pg-section--navy { background: var(--ch-navy); color: #fff; position: relative; overflow: hidden; }
.pg-section--navy::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 20%, rgba(42,143,179,.15), transparent 50%);
}
.pg-section__container {
  max-width: var(--ch-max);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.pg-section__title {
  font-family: var(--ch-font-mincho);
  font-size: clamp(28px, 4vw, 44px);
  color: var(--ch-navy);
  line-height: 1.5;
  margin-bottom: 60px;
}
.pg-section--navy .pg-section__title { color: #fff; }

/* ===== 共通テーブル ===== */
.pg-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--ch-font-mincho);
}
.pg-table th,
.pg-table td {
  padding: 24px 32px;
  text-align: left;
  border-bottom: 1px solid var(--ch-line);
  font-size: 14px;
  line-height: 2;
  vertical-align: top;
}
.pg-table th {
  width: 200px;
  font-weight: 600;
  color: var(--ch-navy);
  background: rgba(10, 61, 92, .04);
  white-space: nowrap;
}
.pg-table td { color: var(--ch-charcoal); }
.pg-table tr:first-child th,
.pg-table tr:first-child td { border-top: 1px solid var(--ch-line); }

/* ===== ヘッダーのアクティブ ===== */
.ch-nav__list a.is-active { color: var(--ch-red); }
.ch-nav__list a.is-active::after { width: 100%; background: var(--ch-red); }

/* ===== レスポンシブ対応グリッド（インラインstyle置き換え用） ===== */
.pg-cols-2 { display: grid; grid-template-columns: 1fr 1fr; }
.pg-cols-2--wide { gap: 80px; }
.pg-cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); }
.pg-cols-4 { display: grid; grid-template-columns: repeat(4, 1fr); }
.pg-job-row { display: grid; grid-template-columns: 240px 1fr auto; }

/* ===== 全面写真バンド（メッセージ性の強い一枚絵セクション） ===== */
.pg-photo-band {
  position: relative;
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.pg-photo-band__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(4,22,38,.75) 0%, rgba(10,61,92,.55) 100%);
}
.pg-photo-band__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px var(--ch-pad-x);
}
.pg-photo-band__en {
  font-family: var(--ch-font-en);
  font-size: 13px;
  letter-spacing: .3em;
  color: var(--ch-blue-light);
  margin-bottom: 16px;
}
.pg-photo-band__text {
  font-family: var(--ch-font-mincho);
  font-size: clamp(18px, 2.6vw, 26px);
  line-height: 1.8;
  color: #fff;
}

/* ===== 沿革タイムライン（下層ページ用・レスポンシブ対応） ===== */
.pg-timeline { position: relative; max-width: 900px; }
.pg-timeline::before {
  content: "";
  position: absolute;
  left: 100px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255,255,255,.2);
}
.pg-timeline__row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 60px;
  padding-bottom: 48px;
  position: relative;
}
.pg-timeline__row:last-child { padding-bottom: 0; }
.pg-timeline__dot {
  position: absolute;
  left: 96px;
  top: 12px;
  width: 9px;
  height: 9px;
  background: var(--ch-blue-light);
  border-radius: 50%;
  z-index: 2;
}
.pg-timeline__dot--latest {
  left: 94px;
  top: 10px;
  width: 13px;
  height: 13px;
  background: var(--ch-red);
  box-shadow: 0 0 0 6px rgba(196,77,63,.2);
}
.pg-timeline__year {
  font-family: var(--ch-font-mincho);
  font-size: 36px;
  line-height: 1.1;
  color: var(--ch-blue-light);
  text-align: right;
}
.pg-timeline__body { padding-left: 30px; }
.pg-timeline__era {
  font-family: var(--ch-font-mincho);
  font-size: 11px;
  color: rgba(255,255,255,.5);
}
.pg-timeline__body h3 {
  font-family: var(--ch-font-mincho);
  font-size: 20px;
  color: #fff;
  margin: 8px 0 12px;
}
.pg-timeline__desc {
  font-family: var(--ch-font-mincho);
  font-size: 13px;
  line-height: 2;
  color: rgba(255,255,255,.7);
}
@media (max-width: 768px) {
  .pg-timeline::before { left: 8px; }
  .pg-timeline__row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding-left: 32px;
    padding-bottom: 36px;
  }
  .pg-timeline__dot { left: 4px; top: 10px; }
  .pg-timeline__dot--latest { left: 2px; top: 8px; }
  .pg-timeline__year { text-align: left; font-size: 28px; }
  .pg-timeline__body { padding-left: 0; }
}

/* ===== 写真カルーセル（横スクロール） ===== */
.pg-carousel { position: relative; }
.pg-carousel__track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 4px 2px 12px;
}
.pg-carousel__track::-webkit-scrollbar { display: none; }
.pg-carousel__slide {
  flex: 0 0 calc((100% - 40px) / 3);
  scroll-snap-align: start;
}
.pg-carousel__photo {
  aspect-ratio: 4 / 3;
  background-size: cover;
  background-position: center;
  border-radius: 4px;
}
.pg-carousel__arrow {
  position: absolute;
  top: calc(50% - 34px);
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--ch-line);
  color: var(--ch-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0,0,0,.12);
  transition: background .3s ease, color .3s ease;
  z-index: 2;
}
.pg-carousel__arrow svg { display: block; }
.pg-carousel__arrow:hover { background: var(--ch-navy); color: #fff; }
.pg-carousel__arrow--prev { left: -8px; }
.pg-carousel__arrow--next { right: -8px; }
.pg-carousel__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}
.pg-carousel__dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ch-line);
  cursor: pointer;
  transition: background .3s ease, transform .3s ease;
}
.pg-carousel__dots span.is-active { background: var(--ch-navy); transform: scale(1.3); }

@media (max-width: 1024px) {
  .pg-carousel__slide { flex: 0 0 calc((100% - 20px) / 2); }
}
@media (max-width: 768px) {
  .pg-carousel__slide { flex: 0 0 82%; }
  .pg-carousel__arrow { display: none; }
}

@media (max-width: 1024px) {
  .pg-cols-3 { grid-template-columns: repeat(2, 1fr); }
  .pg-cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .pg-cols-2 { grid-template-columns: 1fr; }
  .pg-cols-2--wide { gap: 40px; }
  .pg-job-row { grid-template-columns: 1fr; gap: 20px; }
}
@media (max-width: 640px) {
  .pg-cols-3 { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .pg-cols-4 { grid-template-columns: 1fr; }
}

/* ===== レスポンシブ ===== */
@media (max-width: 768px) {
  .pg-hero { padding: 60px var(--ch-pad-x); }
  .pg-section { padding: 80px var(--ch-pad-x); }
  .pg-table th { width: 100px; padding: 16px; }
  .pg-table td { padding: 16px; }
}