/* ===================================================
   about.css — 会社概要ページ専用スタイル
   サブページ共通要素は common.css に集約済み
   （.sub-bg-text / .sub-section-heading / .sub-faq）
   英数字は Shippori Mincho をベース
   =================================================== */

/* ===================================================
   01. HERO
   =================================================== */
.ab-hero {
  position: relative;
  min-height: 420px;
  padding: 80px 0 80px;
  overflow: hidden;
  color: #fff;
}
.ab-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  z-index: 0;
}
.ab-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(19, 45, 127, 0.85) 0%, rgba(29, 69, 164, 0.75) 100%);
  z-index: 1;
}

/* =======================================================
   ab-hero--symbol：シンボルロゴ主役のスタイリッシュヒーロー
   ======================================================= */
.ab-hero--symbol {
  background:
    radial-gradient(circle at 70% 50%, rgba(203, 152, 49, 0.10) 0%, transparent 45%),
    linear-gradient(135deg, #0a1845 0%, var(--rc-navy) 45%, var(--rc-navy-light) 100%);
  min-height: 520px;
  display: flex;
  align-items: center;
}

/* グリッドパターン（微かな格子） */
.ab-hero--symbol .ab-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: center center;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
}

/* ゴールドのグロー（右側からの光） */
.ab-hero--symbol .ab-hero__glow {
  position: absolute;
  right: -200px;
  top: 50%;
  transform: translateY(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(203, 152, 49, 0.18) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
  filter: blur(40px);
}

/* 大型シンボルロゴ：右側にうっすら配置 */
.ab-hero--symbol .ab-hero__symbol {
  position: absolute;
  right: -60px;
  top: 50%;
  width: 540px;
  height: auto;
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.85);
  opacity: 0.18;
  pointer-events: none;
  user-select: none;
  filter: drop-shadow(0 0 24px rgba(203, 152, 49, 0.4));
  z-index: 1;
  animation: ab-hero-symbol-pulse 8s ease-in-out infinite;
}

@keyframes ab-hero-symbol-pulse {
  0%, 100% { opacity: 0.18; transform: translateY(-50%) scale(1); }
  50%      { opacity: 0.26; transform: translateY(-50%) scale(1.02); }
}

/* シンボル下方にうっすらゴールド帯 */
.ab-hero--symbol::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--rc-gold) 50%, transparent 100%);
  opacity: 0.4;
  z-index: 1;
}

.ab-hero--symbol .ab-hero__container {
  z-index: 2;
}

/* タブレット */
@media (max-width: 1023px) {
  .ab-hero--symbol .ab-hero__symbol {
    width: 420px;
    right: -80px;
    opacity: 0.14;
  }
  .ab-hero--symbol .ab-hero__glow {
    width: 500px;
    height: 500px;
    right: -150px;
  }
}

/* SP */
@media (max-width: 767px) {
  .ab-hero--symbol {
    min-height: 380px;
  }
  .ab-hero--symbol .ab-hero__symbol {
    width: 320px;
    right: -120px;
    opacity: 0.10;
  }
  .ab-hero--symbol .ab-hero__glow {
    width: 360px;
    height: 360px;
    right: -180px;
  }
  .ab-hero--symbol .ab-hero__grid {
    background-size: 50px 50px;
  }
}
.ab-hero__container {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}
.ab-hero__eyebrow {
  font-family: "Shippori Mincho", serif;
  font-size: 0.875rem;
  letter-spacing: 0.3em;
  color: var(--rc-gold);
  margin: 0 0 16px;
  font-weight: 500;
}
.ab-hero__title {
  font-family: "Shippori Mincho", serif;
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 600;
  margin: 0 0 16px;
  letter-spacing: 0.02em;
}
.ab-hero__sub {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 1.125rem;
  font-weight: 500;
  margin: 0 0 24px;
  color: var(--rc-gold);
}
.ab-hero__lead {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.9375rem;
  line-height: 1.9;
  max-width: 640px;
  margin: 0;
  opacity: 0.95;
}

/* ===================================================
   02. PHILOSOPHY
   =================================================== */
.ab-philosophy {
  position: relative;
  overflow: hidden;
  background: linear-gradient(150deg, var(--rc-navy) 0%, #0a1446 100%);
}
.ab-philosophy__container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 40px;
}
.ab-philosophy__quote {
  font-family: "Shippori Mincho", serif;
  font-size: clamp(1.75rem, 3.5vw, 2.625rem);
  font-weight: 500;
  line-height: 1.6;
  color: #fff;
  border-left: 3px solid var(--rc-gold);
  padding-left: 32px;
  margin: 32px 0 40px;
  quotes: none;
}
.ab-philosophy__body {}
.ab-philosophy__body p {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 2;
  margin: 0 0 20px;
}
.ab-philosophy__body p:last-child {
  margin-bottom: 0;
}

/* Value Cards */
.ab-value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.ab-value-card {
  background: #fff;
  border: 1px solid #dde1ec;
  border-top: 3px solid var(--rc-gold);
  padding: 36px 32px;
}
.ab-value-card__en {
  font-family: "Shippori Mincho", serif;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--rc-gold);
  font-weight: 500;
  margin: 0 0 4px;
}
.ab-value-card__num {
  font-family: "Shippori Mincho", serif;
  font-size: 2.25rem;
  font-weight: 500;
  color: var(--rc-gold);
  opacity: 0.5;
  margin: 0 0 12px;
  line-height: 1;
}
.ab-value-card__title {
  font-family: "Shippori Mincho", serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--rc-navy);
  margin: 8px 0 16px;
  letter-spacing: 0.04em;
  line-height: 1.5;
}
.ab-value-card__desc {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.875rem;
  color: var(--coolgray-60);
  line-height: 2;
  margin: 0;
}

/* ===================================================
   03. COMPANY INFO
   =================================================== */
.ab-info {
  position: relative;
  overflow: hidden;
  background: #f8f9fb;
}
.ab-info__container {
  position: relative;
  z-index: 1;
  max-width: 1000px;
  margin: 0 auto;
  padding: 100px 40px;
}
.ab-info__table {
  display: flex;
  flex-direction: column;
  margin: 0;
}
.ab-info__row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  border-bottom: 1px solid #dde1ec;
  align-items: start;
}
.ab-info__row:first-child {
  border-top: 1px solid #dde1ec;
}
.ab-info__dt {
  font-family: "Shippori Mincho", serif;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--rc-navy);
  letter-spacing: 0.05em;
  padding: 20px 24px 20px 0;
  border-right: 1px solid #dde1ec;
}
.ab-info__dd {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.875rem;
  color: var(--coolgray-90);
  padding: 20px 0 20px 28px;
  line-height: 1.8;
  margin: 0;
}

/* ===================================================
   04. BUSINESS
   =================================================== */
.ab-business {
  position: relative;
  overflow: hidden;
  background: #fff;
}
.ab-business__container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 40px;
}
.ab-business__lead {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.9375rem;
  color: #555;
  line-height: 1.9;
  margin: 24px 0 56px;
  max-width: 640px;
}
.ab-biz-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.ab-biz-card {
  background: #f8f9fb;
  border: 1px solid #e5e8ee;
  overflow: hidden;
}
.ab-biz-card__img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
}
.ab-biz-card__body {
  padding: 36px 40px 40px;
}
.ab-biz-card__en {
  font-family: "Shippori Mincho", serif;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--rc-gold);
  font-weight: 500;
  margin: 0 0 8px;
}
.ab-biz-card__title {
  font-family: "Shippori Mincho", serif;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--rc-navy);
  margin: 0 0 16px;
  letter-spacing: 0.04em;
}
.ab-biz-card__catch {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 1rem;
  font-weight: 400;
  color: var(--rc-navy);
  margin: 0 0 16px;
}
.ab-biz-card__desc {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.875rem;
  color: var(--coolgray-90);
  line-height: 2;
  margin: 0 0 24px;
}
.ab-biz-card__tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.ab-biz-tag {
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid var(--rc-navy);
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.6875rem;
  color: var(--rc-navy);
  letter-spacing: 0.1em;
}
.ab-biz-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Shippori Mincho", serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--rc-navy);
  text-decoration: none;
  border-bottom: 1px solid var(--rc-gold);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.ab-biz-card__link:hover {
  color: var(--rc-gold);
}

/* ===================================================
   05. MESSAGE
   =================================================== */
.ab-message {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #eef1f8 0%, #f7f8fb 100%);
}
.ab-message__container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 40px;
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 80px;
  align-items: start;
}
.ab-message__photo {
  border-radius: 2px;
  overflow: hidden;
}
.ab-message__photo img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
}
.ab-message__body {
  padding-top: 24px;
}
.ab-message__text {
  margin-top: 24px;
}
.ab-message__text p {
  font-family: "Shippori Mincho", serif;
  font-size: 0.9375rem;
  color: var(--coolgray-90);
  line-height: 2;
  margin: 0 0 20px;
}
.ab-message__text p:last-child {
  margin-bottom: 0;
}
.ab-message__sign {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid #dde1ec;
  text-align: right;
}
.ab-message__sign-role {
  font-family: "Shippori Mincho", serif;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--rc-gold);
  font-weight: 500;
  margin: 0 0 8px;
}
.ab-message__sign-name {
  font-family: "Shippori Mincho", serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--coolgray-90);
  margin: 0;
}

/* ===================================================
   06. GROUP
   =================================================== */
.ab-group {
  position: relative;
  overflow: hidden;
  background: var(--rc-navy);
}
.ab-group__container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 40px;
}
.ab-group__card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(245, 224, 110, 0.25);
  padding: 48px 56px;
  max-width: 680px;
  margin: 48px auto 0;
}
.ab-group__en {
  font-family: "Shippori Mincho", serif;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--rc-gold);
  font-weight: 500;
  margin: 0 0 8px;
}
.ab-group__name {
  font-family: "Shippori Mincho", serif;
  font-size: 1.875rem;
  font-weight: 500;
  color: #fff;
  margin: 0 0 20px;
  letter-spacing: 0.04em;
}
.ab-group__desc {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 2;
  margin: 0;
}

/* ===================================================
   07. ACCESS
   =================================================== */
.ab-access {
  position: relative;
  overflow: hidden;
  background: #fff;
}
.ab-access__container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.ab-access__info {
  padding-top: 8px;
}
.ab-access__info-label {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--rc-gold);
  margin: 32px 0 16px;
  font-weight: 500;
}
.ab-access__address {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--coolgray-90);
  line-height: 1.7;
  margin: 0 0 24px;
  font-style: normal;
}
.ab-access__tel {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 1rem;
  color: var(--rc-navy);
  margin: 0 0 4px;
}
.ab-access__hours {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.875rem;
  color: #666;
  line-height: 1.7;
  margin: 0;
}
.ab-access__map {
  border-radius: 2px;
  overflow: hidden;
  height: 400px;
}
.ab-access__map iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* ===================================================
   08. CTA
   =================================================== */
.ab-cta {
  position: relative;
  overflow: hidden;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ab-cta__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.ab-cta__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(19, 45, 127, 0.92) 0%,
    rgba(10, 20, 70, 0.85) 100%
  );
}
.ab-cta__container {
  position: relative;
  z-index: 1;
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  padding: 80px 60px;
  text-align: center;
}
.ab-cta__eyebrow {
  font-family: "Shippori Mincho", serif;
  font-size: 0.6875rem;
  letter-spacing: 0.35em;
  color: var(--rc-gold);
  font-weight: 600;
  margin: 0 0 20px;
}
.ab-cta__title {
  font-family: "Shippori Mincho", serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  color: #fff;
  line-height: 1.4;
  letter-spacing: 0.04em;
  margin: 0 0 8px;
}
.ab-cta__sub {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 1.125rem;
  color: var(--rc-gold);
  font-weight: 500;
  margin: 0 0 28px;
}
.ab-cta__lead {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.85;
  margin: 0 0 40px;
}
.ab-cta__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
/* .ab-cta__btn → common.css に統合 */

/* ===================================================
   SCROLL REVEAL — about page
   top.js IntersectionObserver が .reveal を処理
   =================================================== */
.ab-philosophy__intro,
.ab-philosophy__quote,
.ab-philosophy__body,
.ab-value-card,
.ab-info__row,
.ab-biz-card,
.ab-message__photo,
.ab-message__body,
.ab-message__text,
.ab-message__sign,
.ab-group__card,
.ab-access__info,
.ab-access__map {
  /* reveal クラスはHTMLに付与済み、top.js で処理 */
}

/* ===================================================
   TABLET (min-width: 768px and max-width: 1023px)
   =================================================== */
@media (min-width: 768px) and (max-width: 1023px) {
  .ab-hero__container,
  .ab-info__container,
  .ab-business__container,
  .ab-group__container,
  .ab-cta__container {
    padding: 0 32px;
  }
  .ab-philosophy__container {
    padding: 80px 32px;
  }

  .ab-value-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .ab-info__row {
    grid-template-columns: 160px 1fr;
  }

  .ab-biz-grid {
    gap: 24px;
  }
  .ab-biz-card__title {
    font-size: 1.375rem;
  }

  .ab-message__container {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 80px 48px;
  }
  .ab-message__photo img {
    height: 400px;
  }

  .ab-access__container {
    gap: 40px;
    padding: 80px 32px;
  }
}

/* ===================================================
   SP (max-width: 767px)
   =================================================== */
@media (max-width: 767px) {
  /* Hero */
  .ab-hero {
    min-height: 360px;
    padding: 110px 0 60px;
  }
  .ab-hero__container {
    padding: 0 20px;
  }
  .ab-hero__title {
    font-size: 2rem;
  }

  /* Philosophy */
  .ab-philosophy__container {
    padding: 72px 20px;
  }
  .ab-philosophy__quote {
    font-size: 1.5rem;
    padding-left: 20px;
    margin: 24px 0 28px;
  }
  .ab-value-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 40px;
  }
  .ab-value-card {
    padding: 28px 24px;
  }

  /* Company Info */
  .ab-info__container {
    padding: 64px 20px;
  }
  .ab-info__row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .ab-info__dt {
    padding: 16px 0 8px;
    border-right: none;
    border-bottom: none;
    font-size: 0.75rem;
  }
  .ab-info__dd {
    padding: 0 0 16px;
    font-size: 0.875rem;
  }

  /* Business */
  .ab-business__container {
    padding: 64px 20px;
  }
  .ab-biz-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .ab-biz-card__img {
    height: 200px;
  }
  .ab-biz-card__body {
    padding: 28px 24px 32px;
  }
  .ab-biz-card__title {
    font-size: 1.5rem;
  }

  /* Message */
  .ab-message__container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 64px 20px;
  }
  .ab-message__photo img {
    height: 280px;
  }
  .ab-message__body {
    padding-top: 0;
  }

  /* Group */
  .ab-group__container {
    padding: 64px 20px;
  }
  .ab-group__card {
    padding: 36px 28px;
    margin-top: 32px;
  }
  .ab-group__name {
    font-size: 1.5rem;
  }

  /* Access */
  .ab-access__container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 64px 20px;
  }
  .ab-access__map {
    height: 280px;
  }

  /* CTA */
  .ab-cta__container {
    padding: 72px 24px;
  }
  .ab-cta__title {
    font-size: 1.5rem;
  }
  .ab-cta__actions {
    flex-direction: column;
    align-items: center;
  }
  .ab-cta__btn {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }

  /* bg-text SP */
  .ab-philosophy .sub-bg-text,
  .ab-info .sub-bg-text,
  .ab-business .sub-bg-text,
  .ab-message .sub-bg-text,
  .ab-group .sub-bg-text,
  .ab-access .sub-bg-text {
    font-size: clamp(3.5rem, 18vw, 6rem);
  }
}