/* =============================================
   1分でわかるアイスイノベーション - Page Styles
   ============================================= */

/* ── サブページ共通（ヘッダー固定色） ── */
body.subpage .site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
body.subpage .site-header .header__menu-btn span {
  background: var(--color-text) !important;
}


/* =============================================
   ページヒーロー
   ============================================= */
.page-hero {
  padding-top: calc(var(--header-height) + 72px);
  padding-bottom: 88px;
  padding-left: 24px;
  padding-right: 24px;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(44, 110, 153, 0.25) 0%, transparent 60%),
    linear-gradient(180deg, var(--color-dark) 0%, #0f1e2c 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  /* 装飾的な氷のグロー */
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(200, 221, 232, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.page-hero::after {
  /* 下部の微細なグラデーション */
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.2) 100%);
  pointer-events: none;
}

.page-hero__inner {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  text-align: center;
}

.page-hero__en {
  font-size: 12px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(200, 221, 232, 0.7);
  margin-bottom: 18px;
  font-weight: 500;
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid rgba(200, 221, 232, 0.3);
  border-radius: 999px;
}

.page-hero__title {
  font-family: var(--font-serif);
  font-size: clamp(30px, 5.5vw, 52px);
  font-weight: 300;
  line-height: 1.3;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.page-hero__lead {
  font-size: clamp(13px, 1.6vw, 15px);
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.06em;
  line-height: 1.8;
  max-width: 560px;
  margin: 0 auto;
}


/* ── パンくずリスト ── */
.breadcrumb {
  max-width: 900px;
  margin: 32px auto 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1;
}
.breadcrumb a {
  color: rgba(255,255,255,0.6);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}
.breadcrumb a:hover { color: #fff; }


/* =============================================
   共通セクション
   ============================================= */
.about1-section {
  padding: 80px 24px;
  max-width: 1080px;
  margin: 0 auto;
}

.about1-section__head {
  text-align: center;
  margin-bottom: 48px;
  position: relative;
}

.about1-section__en {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--color-accent);
  margin-bottom: 12px;
  font-weight: 600;
  text-transform: uppercase;
  display: inline-block;
  position: relative;
  padding: 0 20px;
}

.about1-section__en::before,
.about1-section__en::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 28px;
  height: 1px;
  background: var(--color-accent);
  opacity: 0.4;
}
.about1-section__en::before { right: 100%; }
.about1-section__en::after  { left: 100%; }

.about1-section__title {
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-text);
  line-height: 1.5;
  margin-top: 4px;
}


/* =============================================
   Section: 数字で見る (Stats)
   ============================================= */
.about1-section--stats {
  background: linear-gradient(180deg, #fafbfc 0%, #ffffff 100%);
  max-width: none;
  padding-left: 24px;
  padding-right: 24px;
}

.about1-section--stats > .about1-section__head,
.about1-section--stats > .stats__grid {
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
}

.stats__grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

@media (min-width: 640px) {
  .stats__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
}

@media (min-width: 1024px) {
  .stats__grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
  }
}

.stat {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 28px 14px 22px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1),
              box-shadow 0.3s ease,
              border-color 0.3s ease;
}

.stat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-ice-dark));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.stat:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(26, 47, 66, 0.08);
  border-color: var(--color-ice-dark);
}

.stat:hover::before { transform: scaleX(1); }

.stat__value {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4.5vw, 44px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.stat__unit {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(12px, 1.3vw, 14px);
  font-weight: 600;
  color: var(--color-text-light);
}

.stat__label {
  font-size: 11px;
  color: var(--color-text-light);
  line-height: 1.6;
  letter-spacing: 0.02em;
  margin-top: 2px;
}


/* =============================================
   Section: 3つの理由 (Reasons)
   ============================================= */
.about1-section--reasons {
  background: #fff;
}

.reasons1__grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .reasons1__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

.reason1 {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 40px 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1),
              box-shadow 0.3s ease;
}

.reason1::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-ice-dark));
}

.reason1:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(26, 47, 66, 0.1);
}

.reason1__num {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 300;
  color: var(--color-accent);
  letter-spacing: 0.02em;
  line-height: 1;
  opacity: 0.85;
}

.reason1__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.reason1__text {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.9;
  letter-spacing: 0.02em;
  flex-grow: 1;
}

.reason1__tag {
  align-self: flex-start;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  font-weight: 600;
  padding: 6px 14px;
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  text-transform: uppercase;
  margin-top: 6px;
}


/* =============================================
   Section: 取扱商品 (Products)
   ============================================= */
.about1-section--products {
  background: var(--color-section-alt);
  max-width: none;
  padding-left: 24px;
  padding-right: 24px;
}

.about1-section--products > .about1-section__head,
.about1-section--products > .product-chips,
.about1-section--products > .about1-note {
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
}

.product-chips {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 640px) {
  .product-chips {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

.product-chip {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform 0.2s ease,
              border-color 0.2s ease,
              background 0.2s ease;
}

.product-chip:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  background: #fafbfc;
}

.product-chip strong {
  font-size: 15px;
  color: var(--color-text);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.product-chip span {
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 0.02em;
}

.about1-note {
  margin-top: 32px;
  font-size: 13px;
  color: var(--color-text);
  text-align: center;
  line-height: 1.9;
  padding: 20px 24px;
  background: #fff;
  border-radius: 10px;
  border-left: 3px solid var(--color-accent);
  letter-spacing: 0.02em;
}

.about1-note strong {
  color: var(--color-accent);
  font-weight: 700;
}


/* =============================================
   Section: 活躍シーン (Scenes)
   ============================================= */
.about1-section--scenes {
  background: #fff;
}

.scenes__grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .scenes__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (min-width: 1024px) {
  .scenes__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

.scene {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 28px 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1),
              box-shadow 0.3s ease,
              border-color 0.3s ease;
}

.scene:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(26, 47, 66, 0.08);
  border-color: var(--color-ice-dark);
}

.scene__icon {
  font-size: 32px;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-bg), #fff);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  border: 1px solid var(--color-border);
}

.scene__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
  line-height: 1.5;
}

.scene__text {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.8;
  flex-grow: 1;
  letter-spacing: 0.02em;
}

.scene__link {
  font-size: 12px;
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-top: 6px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease, color 0.2s ease;
}

.scene__link:hover {
  gap: 8px;
  color: var(--color-text);
}


/* =============================================
   Section: 対応エリア (Area)
   ============================================= */
.about1-section--area {
  background: linear-gradient(180deg, var(--color-section-alt) 0%, #fff 100%);
  max-width: none;
  padding-left: 24px;
  padding-right: 24px;
}

.about1-section--area > .about1-section__head,
.about1-section--area > .area-box {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.area-box {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 40px 32px;
  box-shadow: 0 4px 16px rgba(26, 47, 66, 0.04);
}

.area-box__lead {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.8;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
  text-align: center;
}

.area-box__lead strong {
  color: var(--color-accent);
  font-weight: 700;
}

.area-list {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

@media (min-width: 640px) {
  .area-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 24px;
  }
}

.area-list li {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.7;
  padding: 12px 16px 12px 38px;
  position: relative;
  background: #fafbfc;
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.area-list li::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(44, 110, 153, 0.15);
}

.area-list li strong {
  color: var(--color-text);
  font-weight: 700;
  margin-right: 6px;
}

.area-box__note {
  font-size: 12px;
  color: var(--color-text-light);
  line-height: 1.7;
  padding-top: 16px;
  border-top: 1px dashed var(--color-border);
  text-align: center;
}


/* =============================================
   CTA
   ============================================= */
.about1-cta {
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(44, 110, 153, 0.3) 0%, transparent 70%),
    linear-gradient(135deg, var(--color-dark) 0%, #0f1e2c 100%);
  color: #fff;
  padding: 72px 24px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.about1-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-ice-dark), transparent);
}

.about1-cta__title {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
  font-family: var(--font-serif);
  font-weight: 400;
}

.about1-cta__lead {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.9;
  margin-bottom: 40px;
  letter-spacing: 0.03em;
}

.about1-cta__btns {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto 28px;
}

@media (min-width: 768px) {
  .about1-cta__btns {
    flex-direction: row;
    max-width: 840px;
    gap: 16px;
  }
}

.about1-cta__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: #fff;
  color: var(--color-text);
  padding: 20px 24px;
  border-radius: 10px;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  min-height: 72px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.about1-cta__btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
}

.about1-cta__btn span {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  text-align: left;
}

.about1-cta__btn strong {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.about1-cta__btn small {
  font-size: 11px;
  color: var(--color-text-light);
  letter-spacing: 0.02em;
}

.about1-cta__btn--tel strong {
  color: var(--color-accent);
  font-size: 20px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.03em;
}
.about1-cta__btn--tel svg { color: var(--color-accent); }

.about1-cta__btn--form svg { color: var(--color-accent); }

.about1-cta__btn--line { background: #06c755; color: #fff; }
.about1-cta__btn--line strong { color: #fff; }
.about1-cta__btn--line small { color: rgba(255, 255, 255, 0.9); }

.about1-cta__more {
  margin-top: 20px;
}

.about1-cta__more-link {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: underline;
  text-underline-offset: 4px;
  letter-spacing: 0.05em;
  transition: color 0.2s ease;
}

.about1-cta__more-link:hover {
  color: #fff;
}


/* =============================================
   レスポンシブ調整
   ============================================= */
@media (max-width: 640px) {
  .page-hero {
    padding-top: calc(var(--header-height) + 48px);
    padding-bottom: 64px;
  }

  .about1-section {
    padding: 56px 20px;
  }

  .about1-section__head {
    margin-bottom: 36px;
  }

  .reason1 {
    padding: 32px 24px 26px;
  }

  .reason1__num {
    font-size: 40px;
  }

  .stats__grid {
    gap: 10px;
  }

  .stat {
    padding: 22px 10px 18px;
  }

  .about1-cta {
    padding: 56px 20px 48px;
  }
}


/* ── アクセシビリティ: モーション抑制 ── */
@media (prefers-reduced-motion: reduce) {
  .stat, .reason1, .product-chip, .scene, .about1-cta__btn {
    transition: none;
  }
  .stat:hover, .reason1:hover, .scene:hover, .about1-cta__btn:hover, .product-chip:hover {
    transform: none;
  }
  .stat::before {
    transform: scaleX(1);
  }
}