/* ================================================================
   事業案内ページ固有スタイル (work.css)
   - ページヒーロー
   - パンくずリスト
   - タブUI (WRK-001)
   - アコーディオン (WRK-001)
   - 業務フロー / 商品カテゴリ / サービス一覧
   - CTAセクション
   ================================================================ */

/* ----------------------------------------------------------------
   1. ページヒーロー
   ---------------------------------------------------------------- */
.page-hero {
  position: relative;
  width: 100%;
  height: 50vh;
  min-height: 360px;
  max-height: 480px;
  overflow: hidden;
  margin-top: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.page-hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(26, 60, 94, 0.8) 0%,
    rgba(26, 60, 94, 0.5) 60%,
    rgba(0, 0, 0, 0.3) 100%
  );
}

.page-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--color-text-white);
}

.page-hero__label {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: var(--spacing-xs);
}

.page-hero__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xxl);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
}

.page-hero__description {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
}

/* パンくずリスト */
.breadcrumb {
  position: absolute;
  bottom: var(--spacing-md);
  left: 0;
  right: 0;
  z-index: 2;
}

.breadcrumb__list {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
}

.breadcrumb__item a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.breadcrumb__item a:hover {
  color: var(--color-text-white);
}

.breadcrumb__item + .breadcrumb__item::before {
  content: '›';
  margin-right: 8px;
  color: rgba(255, 255, 255, 0.4);
}

.breadcrumb__item[aria-current="page"] {
  color: var(--color-text-white);
}

/* ----------------------------------------------------------------
   2. タブUI (WRK-001)
   ---------------------------------------------------------------- */
.work-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-bg);
}

.work-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: var(--spacing-xl);
  background-color: var(--color-bg-dark);
  border-radius: var(--radius-lg);
  padding: 6px;
}

.work-tabs__btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: var(--spacing-md) var(--spacing-sm);
  border-radius: calc(var(--radius-lg) - 4px);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-light);
  background: transparent;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
}

.work-tabs__btn:hover {
  color: var(--color-primary);
  background-color: rgba(255, 255, 255, 0.5);
}

.work-tabs__btn.active {
  color: var(--color-text-white);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  box-shadow: var(--shadow-md);
}

.work-tabs__icon {
  font-size: var(--font-size-lg);
}

.work-tabs__label {
  font-weight: 600;
  letter-spacing: 0.03em;
}

/* タブパネル */
.work-panel {
  display: none;
  animation: panelFadeIn 0.5s ease;
}

.work-panel.active {
  display: block;
}

@keyframes panelFadeIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* パネルヒーロー（リードセクション） */
.work-panel__hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  margin-bottom: var(--spacing-xxl);
}

.work-panel__hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.work-panel__hero-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.work-panel__hero-image:hover img {
  transform: scale(1.03);
}

.work-panel__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.work-panel__subtitle {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 400;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-md);
}

.work-panel__lead {
  font-size: var(--font-size-base);
  line-height: 2;
  color: var(--color-text);
}

/* ----------------------------------------------------------------
   3. 業務フロー
   ---------------------------------------------------------------- */
.work-flow {
  margin-bottom: var(--spacing-xxl);
}

.work-flow__title,
.work-products__title,
.work-services__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.work-flow__title::after,
.work-products__title::after,
.work-services__title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  margin: var(--spacing-sm) auto 0;
  border-radius: 2px;
}

.work-flow__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.work-flow__step {
  position: relative;
  background-color: var(--color-text-white);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg) var(--spacing-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all var(--transition-base);
}

.work-flow__step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.work-flow__step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-text-white);
  font-family: var(--font-heading);
  font-size: var(--font-size-md);
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: var(--spacing-sm);
}

.work-flow__step-title {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.work-flow__step-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ステップ間の矢印（PC） */
.work-flow__step + .work-flow__step::before {
  content: '→';
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-accent);
  font-size: var(--font-size-lg);
  font-weight: 300;
}

/* ----------------------------------------------------------------
   4. 商品カテゴリ（販売タブ）
   ---------------------------------------------------------------- */
.work-products {
  margin-bottom: var(--spacing-xxl);
}

.work-products__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.work-products__card {
  background-color: var(--color-text-white);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border);
}

.work-products__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-light);
}

.work-products__card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.work-products__card h4 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.work-products__card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ----------------------------------------------------------------
   5. サービス一覧（サポートタブ）
   ---------------------------------------------------------------- */
.work-services {
  margin-bottom: var(--spacing-xxl);
}

.work-services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.work-services__card {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  background-color: var(--color-text-white);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border-left: 4px solid var(--color-accent);
}

.work-services__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.work-services__card-number {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: var(--color-text-white);
  font-family: var(--font-heading);
  font-size: var(--font-size-md);
  font-weight: 700;
  border-radius: var(--radius-sm);
}

.work-services__card h4 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.work-services__card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ----------------------------------------------------------------
   6. アコーディオン (WRK-001)
   ---------------------------------------------------------------- */
.work-accordion {
  margin-bottom: var(--spacing-lg);
}

.work-accordion__heading {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.work-accordion__heading::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  margin: var(--spacing-sm) auto 0;
  border-radius: 2px;
}

.accordion__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  background-color: var(--color-text-white);
  transition: box-shadow var(--transition-base);
}

.accordion__item:hover {
  box-shadow: var(--shadow-sm);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background-color var(--transition-fast);
}

.accordion__trigger:hover {
  background-color: var(--color-bg-dark);
}

.accordion__trigger-text {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
}

.accordion__trigger-icon {
  flex-shrink: 0;
  font-size: var(--font-size-xs);
  color: var(--color-accent);
  transition: transform var(--transition-base);
}

.accordion__trigger[aria-expanded="true"] .accordion__trigger-icon {
  transform: rotate(180deg);
}

.accordion__content {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  animation: accordionSlideDown 0.3s ease;
}

.accordion__content p {
  font-size: var(--font-size-sm);
  line-height: 1.8;
  color: var(--color-text-light);
}

@keyframes accordionSlideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 工場カード（アコーディオン内） */
.accordion__factory-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.accordion__factory-card {
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
}

.accordion__factory-card h5 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.accordion__factory-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ----------------------------------------------------------------
   7. CTAセクション
   ---------------------------------------------------------------- */
.work-cta {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-bg-dark);
}

.work-cta__inner {
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  padding: var(--spacing-xxl) var(--spacing-xl);
  color: var(--color-text-white);
}

.work-cta__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.work-cta__text {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.work-cta__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 1rem 3rem;
  background-color: var(--color-text-white);
  color: var(--color-primary);
  font-size: var(--font-size-base);
  font-weight: 700;
  border-radius: 50px;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
}

.work-cta__btn:hover {
  color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

/* ----------------------------------------------------------------
   8. レスポンシブ
   ---------------------------------------------------------------- */

/* タブレット */
@media (max-width: 1024px) {
  .work-panel__hero {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .work-flow__steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .work-flow__step + .work-flow__step::before {
    display: none;
  }

  .work-products__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* スマートフォン */
@media (max-width: 767px) {
  .page-hero {
    min-height: 280px;
    height: 40vh;
  }

  .work-tabs {
    flex-direction: column;
    gap: 4px;
  }

  .work-tabs__btn {
    flex-direction: row;
    justify-content: center;
    padding: var(--spacing-sm);
  }

  .work-flow__steps {
    grid-template-columns: 1fr;
  }

  .work-products__grid {
    grid-template-columns: 1fr;
  }

  .work-services__grid {
    grid-template-columns: 1fr;
  }

  .accordion__factory-grid {
    grid-template-columns: 1fr;
  }

  .accordion__trigger {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .accordion__content {
    padding: 0 var(--spacing-md) var(--spacing-md);
  }

  .work-cta__inner {
    padding: var(--spacing-xl) var(--spacing-md);
  }
}