/* ==========================================================================
   トップページ専用レイアウト
   ========================================================================== */

.section-title { margin-bottom: clamp(48px, 41px + 1.8vw, 64px); }

/* ---- Hero ---- */
.hero {
  padding-block: 96px;
  padding-inline: var(--page-padding);
  border-bottom: var(--divider-width) solid var(--color-border);
}
.hero__inner {
  display: flex;
  align-items: center;
  gap: 60px;
}
.hero__text { flex: 1; display: flex; flex-direction: column; gap: 24px; }
.hero__tagline { letter-spacing: .08em; text-transform: uppercase; }
.hero__title { font-size: var(--fs-heading-1); font-weight: var(--fw-heading); line-height: var(--lh-heading); }
.hero__lead { font-size: var(--fs-text-medium); line-height: 2; }
.hero__actions { display: flex; gap: 16px; margin-top: 8px; }
.hero__media { flex: 1; }
.hero__media img { width: 100%; height: auto; }

/* ---- Facts ---- */
.facts {
  --color-accent: var(--color-accent-on-dark);
  --color-accent-text: var(--color-accent-on-dark);
  background: var(--color-neutral-darkest);
  color: var(--color-text-on-dark);
  padding-block: 64px;
  padding-inline: var(--page-padding);
}
.facts__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin: 0;
}
.fact { display: flex; flex-direction: column; gap: 8px; }
.fact__num {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: var(--fw-heading);
  line-height: 1.1;
  color: var(--color-accent);
}
.fact__unit { font-size: 1.5rem; margin-left: 2px; }
.fact__label { font-size: var(--fs-text-regular); font-weight: var(--fw-semibold); }
.fact__note { font-size: var(--fs-text-small); line-height: 2; color: var(--color-text-on-dark-muted); }

/* ---- About ---- */
.about__inner { display: flex; gap: 80px; align-items: center; }
.about__content { flex: 1; display: flex; flex-direction: column; gap: 40px; }
.about__body { display: flex; flex-direction: column; gap: 32px; }
.about__body-top { display: flex; flex-direction: column; gap: 16px; }
.about__actions { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.about__media { flex: 1; }
.about__media img { width: 100%; height: auto; }

/* ---- 3つの事業領域 ---- */
.domains__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.domain-card {
  border-top: 3px solid var(--color-accent);
  padding-top: 24px;
  display: flex; flex-direction: column; gap: 12px;
}
.domain-card__head { display: flex; align-items: center; gap: 32px; }
.domain-card__index {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: var(--fw-bold);
  line-height: 1;
  letter-spacing: 0;
  color: var(--color-accent);
}
.domain-card__title {
  font-size: calc(var(--fs-heading-5) * 1.15);
  font-weight: var(--fw-heading);
  letter-spacing: 0;
  color: var(--color-accent);
}
.domain-card__sub { padding-left: 88px; font-size: var(--fs-text-small); color: var(--color-text-muted); }
.domain-card__list { padding-left: 88px; margin-top: 8px; }

/* ---- 提供サービス ---- */
.services { --sc-head-clear: 32px; }

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  --sc-padding: var(--card-padding);
  --sc-border: 3px;
  padding: var(--sc-padding);
  display: flex;
  flex-direction: column;
  border: var(--sc-border) solid var(--color-accent);
  border-radius: 8px;
}
/* 見出しを上辺の枠線に重ね、背景色で線を切り抜く */
.service-card__head {
  --sc-head-gap: 16px;
  align-self: center;
  display: flex;
  align-items: center;
  gap: var(--sc-head-gap);
  padding-inline: var(--sc-head-gap);
  margin-top: calc(var(--sc-padding) * -1);
  transform: translateY(calc(-50% - var(--sc-border) / 2));
  background: var(--color-bg);
  text-align: center;
}
.service-card__icon { flex-shrink: 0; font-size: 2rem; color: var(--color-accent); }
.service-card__title { color: var(--color-accent-text); font-size: var(--fs-heading-6); font-weight: var(--fw-semibold); }
.service-card__desc { font-size: var(--fs-text-regular); line-height: 2; }
.services__actions { display: flex; justify-content: center; margin-top: 80px; }

/* ---- 支援実績 ---- */
.case {
  background: var(--color-neutral-lightest);
  padding-block: var(--section-padding-large);
  padding-inline: var(--page-padding);
}
.case__title { margin-bottom: 48px; }

.case__kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 80px;
}
.case__brand { display: flex; gap: 64px; align-items: flex-start; margin-bottom: 40px; }
.case__brand-media { flex: 1; }
.case__brand-media img { width: 100%; height: auto; }
.case__brand-text { flex: 1; display: flex; flex-direction: column; gap: 24px; }
.case__brand-title { font-size: var(--fs-heading-4); font-weight: var(--fw-heading); line-height: var(--lh-heading); }
.case__brand-desc { font-size: var(--fs-text-regular); line-height: 2; }

.case__results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case .mobile-slider { margin-bottom: 64px; }
.result-card {
  background: var(--color-fg);
  border: var(--border-width) solid var(--color-border);
  padding: var(--card-padding);
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.result-card__title { font-size: var(--fs-text-medium); font-weight: var(--fw-heading); line-height: 1.5; }
.result-card__list { display: flex; flex-direction: column; gap: 12px; margin: 0; }
.result-card__list > div {
  display: flex; justify-content: space-between; align-items: baseline; gap: 16px;
  padding-bottom: 12px;
  border-bottom: var(--divider-width) solid var(--color-border);
}
.result-card__list > div:last-child { border-bottom: none; padding-bottom: 0; }
.result-card__list dt { font-size: var(--fs-text-small); color: var(--color-text-muted); }
.result-card__list dd { margin: 0; font-size: var(--fs-text-medium); font-weight: var(--fw-regular); }

/* ---- 成長推移 ---- */
.growth__inner { display: flex; gap: 80px; align-items: center; }
.growth__text { flex: 1; display: flex; flex-direction: column; gap: 16px; }
.growth__deltas { display: flex; gap: 40px; flex-wrap: wrap; margin-top: 16px; }
.growth__delta { display: flex; flex-direction: column; gap: 4px; }
.growth__delta-num { font-family: var(--font-heading); font-size: var(--fs-heading-3); font-weight: var(--fw-heading); color: var(--color-accent); line-height: 1.1; }
.growth__delta-label { font-size: var(--fs-text-small); color: var(--color-text-muted); }

.chart {
  flex: 1;
  margin: 0;
  border: var(--border-width) solid var(--color-border);
  padding: 32px;
}
.chart__caption { font-size: var(--fs-text-small); font-weight: var(--fw-semibold); margin-bottom: 24px; }
.chart__plot { display: flex; gap: 48px; height: 320px; }
.chart__item {
  flex: 1;
  display: grid;
  grid-template-rows: auto 1fr auto;
  align-items: end;
  text-align: center;
}
.chart__value { font-family: var(--font-heading); font-size: var(--fs-heading-5); font-weight: var(--fw-heading); margin-bottom: 8px; }
.chart__bar { width: 100%; background: var(--color-neutral-darkest); }
.chart__bar--accent { background: var(--color-accent); }
.chart__year { font-size: var(--fs-text-small); margin-top: 12px; }

/* ---- 日本市場 展開プラン ---- */
.plan__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.plan-card {
  border: var(--border-width) solid var(--color-border);
  padding: var(--card-padding-loose);
  display: flex; flex-direction: column; gap: 6px;
}
.plan-card--accent {
  --color-accent: var(--color-accent-hover);
  --color-accent-text: var(--color-accent-hover);
}
.plan-card__title { font-size: var(--fs-heading-6); font-weight: var(--fw-heading); border-bottom: 3px solid var(--orange-500); padding-bottom: 0.5em; }
.plan-card__role { font-weight: var(--fw-semibold); color: var(--color-accent-text); }
.plan-card__list { margin-top: 12px; }
.plan__media { display: flex; }
.plan__media img { width: 100%; height: 100%; object-fit: cover; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 991px) {

  .hero { padding-block: 48px; }
  .hero__inner { flex-direction: column; gap: 24px; align-items: stretch; }
  .hero__text { display: contents; }
  .hero__title { order: 1; }
  .hero__media { order: 2; }
  .hero__lead  { order: 3; }
  .hero__actions { order: 4; }

  .facts__grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .fact__num { font-size: 2.5rem; }

  .about__inner, .case__brand, .growth__inner { flex-direction: column; gap: 48px; align-items: stretch; }
  .about__inner { gap: 32px; }

  .case__brand { gap: 24px; }
  .case__brand-text { display: contents; }
  .case__brand-title { order: 1; }
  .case__brand-desc { order: 2; }
  .case__brand-media { order: 3; }
  .case__brand .icon-list { order: 4; }
  .about__content, .about__body { display: contents; }
  .about__body-top { order: 1; }
  .about__media { order: 2; }
  .icon-list { order: 3; }
  .about__actions { order: 4; }

  .domains__grid, .plan__grid { grid-template-columns: 1fr; gap: 24px; }
  .services__grid { grid-template-columns: repeat(2, 1fr); }

  .case__kpis { grid-template-columns: 1fr; margin-bottom: 48px; }
  .case .mobile-slider { margin-bottom: 48px; }

  .services .mobile-slider .splide__track {
    margin-top: calc(var(--sc-head-clear) * -1);
    padding-top: var(--sc-head-clear);
  }
}

@media (min-width: 641px) and (max-width: 1140px) {
  .plan__grid { grid-template-columns: 1fr 1fr; }
  .plan__grid > .plan-card:first-child { grid-column: 1; grid-row: 1; }
  .plan__grid > .plan-card--accent    { grid-column: 2; grid-row: 1; }
  .plan__grid > .plan__media {
    grid-column: 1 / 3;
    grid-row: 2;
  }
  .plan__grid > .plan__media img {
    width: 100%;
    height: auto;
    aspect-ratio: 1600 / 746;
    object-fit: cover;
  }
}

@media (max-width: 640px) {
  .domain-card__index { font-size: 3rem; }
  .domain-card__sub, .domain-card__list { padding-left: 64px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .facts__grid { grid-template-columns: 1fr; }
  .services__grid { grid-template-columns: 1fr; }
  .about__actions { flex-direction: column; align-items: center; gap: 16px; }
  .growth__deltas { gap: 24px; }
  .chart__plot { gap: 24px; height: 240px; }
  .case__brand { margin-bottom: 40px; }
}