/* ==========================================================================
   アイガー株式会社 AI外観検査ページ — 共通CSS（v2 マーケティングLP版）
   ========================================================================== */

/* --- CSS Variables --- */
:root {
  --color-primary: #083a5c;
  --color-primary-hover: #052238;
  --color-primary-light: #eef2f6;
  --color-accent: #FFC524;
  --color-dark: #282c34;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e9ecef;
  --color-gray-400: #ced4da;
  --color-gray-600: #6c757d;
  --color-gray-800: #343a40;
  --font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  --max-width: 1100px;
  --header-height: 72px;
}

/* --- Reset & Base (scoped to .washer-lp) --- */
.washer-lp,
.washer-lp *,
.washer-lp *::before,
.washer-lp *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root:has(.washer-lp) {
  font-size: 18px;
  scroll-behavior: smooth;
}

.washer-lp {
  font-size: 18px;
  font-family: var(--font-family);
  color: var(--color-black);
  background: var(--color-white);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

.washer-lp img {
  max-width: 100%;
  height: auto;
  display: block;
}

.washer-lp a {
  color: var(--color-primary);
  text-decoration: none;
}

.washer-lp a:hover {
  color: var(--color-primary-hover);
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-header__logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-black);
  letter-spacing: 0.04em;
}

.site-header__logo a {
  color: inherit;
}

.site-header__nav {
  display: flex;
  gap: 28px;
  list-style: none;
  font-size: 0.875rem;
}

.site-header__nav a {
  color: var(--color-gray-800);
  transition: color 0.2s;
}

.site-header__nav a:hover {
  color: var(--color-primary);
}

/* --- Footer --- */
.site-footer {
  background: var(--color-dark);
  color: var(--color-gray-400);
  padding: 48px 0 32px;
  margin-top: 0;
  font-size: 0.8125rem;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.site-footer__links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.site-footer__links a {
  color: var(--color-gray-400);
  transition: color 0.2s;
}

.site-footer__links a:hover {
  color: var(--color-white);
}

.site-footer__copy {
  color: var(--color-gray-600);
}

/* --- Section --- */
.section {
  padding: 80px 0;
}

.section--gray {
  background: var(--color-gray-50);
}

.section--dark {
  background: var(--color-dark);
  color: var(--color-white);
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header--sub {
  margin-top: 96px;
  margin-bottom: 40px;
  text-align: left;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}

.section-header--sub .section__subtitle {
  margin-left: 0;
  margin-right: 0;
}

.section__subtitle-heading {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.section__title {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 20px;
}

.section__subtitle {
  font-size: 1.0625rem;
  color: var(--color-gray-600);
  margin-bottom: 48px;
  line-height: 1.8;
}

/* --- Breadcrumb --- */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.8125rem;
  color: var(--color-gray-600);
}

.breadcrumb a {
  color: var(--color-gray-600);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb__separator {
  margin: 0 8px;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  padding: 140px 0 120px;
  text-align: center;
  color: var(--color-white);
  overflow: hidden;
  isolation: isolate;
}

.hero__video {
  position: absolute;
  inset: 0;
  z-index: -2;
  overflow: hidden;
}

.hero__video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(0, 0, 0, 0.25);
}

.hero .container {
  position: relative;
}

.hero .section__label {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
}

.hero__title {
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 28px;
  letter-spacing: -0.02em;
  color: var(--color-white);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.hero__subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.92);
  line-height: 2;
  margin-bottom: 40px;
  max-width: 740px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.35);
}

.hero__subtitle strong {
  color: var(--color-white);
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Hero内のボタンは両方ネイビー+白文字 */
.hero .btn,
.hero .btn--primary,
.hero .btn--outline {
  background: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
}

.hero .btn:hover,
.hero .btn--primary:hover,
.hero .btn--outline:hover {
  background: var(--color-primary-hover);
  color: var(--color-white);
  border-color: var(--color-primary-hover);
}

/* --- Card Grid --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.25s, transform 0.25s;
}

.card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.card--disabled {
  opacity: 0.6;
  pointer-events: none;
}

.card__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.card__image svg {
  width: 64px;
  height: 64px;
  color: var(--color-gray-400);
}

.card__body {
  padding: 24px;
}

.card__title {
  font-size: 1.1875rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.card__text {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  margin-bottom: 16px;
  line-height: 1.7;
}

.card__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 4px;
  background: var(--color-gray-200);
  color: var(--color-gray-600);
}

/* --- Button --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  text-decoration: none;
}

.btn--primary,
.washer-lp .btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover,
.washer-lp .btn--primary:hover {
  background: var(--color-primary-hover);
  color: var(--color-white);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* --- Video Player --- */
.video-player {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-black);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 0;
}

.video-player video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-player--has-source video {
  object-fit: contain;
  background: var(--color-black);
}

.video-player__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--color-gray-400);
  font-size: 0.875rem;
}

.video-player__placeholder svg {
  width: 64px;
  height: 64px;
  opacity: 0.5;
}

/* --- Pain Points Grid --- */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.pain-card {
  background: var(--color-white);
  border-radius: 8px;
  padding: 32px 28px;
  border: 1px solid var(--color-gray-200);
}

.pain-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  color: var(--color-primary);
}

.pain-card__icon svg {
  width: 100%;
  height: 100%;
}

.pain-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.pain-card__text {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  line-height: 1.8;
}

/* --- Solution Flow --- */
.solution-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 24px;
  padding: 48px 0 0;
  flex-wrap: wrap;
}

.solution-step {
  text-align: center;
  max-width: 260px;
  flex: 1;
  min-width: 200px;
}

.solution-step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.solution-step__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  color: var(--color-gray-600);
}

.solution-step__icon svg {
  width: 100%;
  height: 100%;
}

.solution-step__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.solution-step__text {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  line-height: 1.8;
}

.solution-flow .flow-arrow {
  margin-top: 60px;
  font-size: 1.5rem;
  color: var(--color-gray-400);
  flex-shrink: 0;
}

/* --- Benefit Grid --- */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.benefit-card {
  background: var(--color-white);
  border-radius: 8px;
  padding: 36px 32px;
  border: 1px solid var(--color-gray-200);
  transition: box-shadow 0.25s;
}

.benefit-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.benefit-card--highlight {
  grid-column: 1 / -1;
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  border-width: 2px;
}

.benefit-card__icon {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.benefit-card__icon svg {
  width: 100%;
  height: 100%;
}

.benefit-card__title {
  font-size: 1.1875rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.benefit-card__text {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  line-height: 1.9;
}

/* --- Benefits Accordion --- */
.benefit-accordion {
  max-width: 880px;
  margin: 0 auto;
  border-top: 1px solid var(--color-gray-200);
}

.benefit-acc {
  border-bottom: 1px solid var(--color-gray-200);
}

.benefit-acc__head {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 28px 8px;
  cursor: pointer;
  list-style: none;
  transition: background 0.2s;
}

.benefit-acc__head::-webkit-details-marker {
  display: none;
}

.benefit-acc__head:hover {
  background: var(--color-gray-50);
}

.benefit-acc__num {
  flex-shrink: 0;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  min-width: 32px;
}

.benefit-acc__title {
  flex: 1;
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0;
  color: var(--color-gray-800);
}

.benefit-acc__toggle {
  flex-shrink: 0;
  position: relative;
  width: 20px;
  height: 20px;
}

.benefit-acc__toggle::before,
.benefit-acc__toggle::after {
  content: '';
  position: absolute;
  background: var(--color-primary);
  top: 50%;
  left: 50%;
  transition: transform 0.3s ease;
}

.benefit-acc__toggle::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.benefit-acc__toggle::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.benefit-acc[open] .benefit-acc__toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.benefit-acc__body {
  padding: 0 8px 28px 64px;
}

.benefit-acc__body p {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  line-height: 1.9;
  margin: 0;
}

.benefit-acc__body strong {
  color: var(--color-primary);
  font-weight: 700;
}

.benefit-acc--highlight .benefit-acc__title {
  color: var(--color-primary);
}

/* --- Stats --- */
.stats-grid {
  display: flex;
  justify-content: center;
  gap: 64px;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat__number {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.stat__unit {
  font-size: 1.25rem;
  font-weight: 600;
  margin-left: 4px;
}

.stat__label {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  margin-top: 8px;
}

/* --- Tech Highlights --- */
.tech-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.tech-highlight {
  text-align: center;
  padding: 32px 24px;
  background: var(--color-white);
  border-radius: 8px;
  border: 1px solid var(--color-gray-200);
}

.tech-highlight__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 20px;
  color: var(--color-primary);
}

.tech-highlight__icon svg {
  width: 100%;
  height: 100%;
}

.tech-highlight__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-gray-800);
}

.tech-highlight__text {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  line-height: 1.8;
}

/* Stacked horizontal-row variant */
.tech-highlights--stack {
  grid-template-columns: 1fr;
  gap: 16px;
  max-width: 880px;
  margin: 0 auto;
}

.tech-highlights--stack .tech-highlight {
  display: flex;
  align-items: center;
  gap: 28px;
  text-align: left;
  padding: 28px 32px;
}

.tech-highlights--stack .tech-highlight__icon {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  margin: 0;
  padding: 14px;
  background: var(--color-primary-light);
  border-radius: 50%;
}

.tech-highlights--stack .tech-highlight__body {
  flex: 1;
  min-width: 0;
}

.tech-highlights--stack .tech-highlight__title {
  margin-bottom: 6px;
}

/* --- Use Case Grid --- */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.usecase-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 40px 32px 32px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.35s ease;
  isolation: isolate;
}

.usecase-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.usecase-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(8, 58, 92, 0.12);
  border-color: var(--color-primary);
}

.usecase-card:hover::before {
  transform: scaleX(1);
}

.usecase-card:hover .usecase-card__num {
  color: var(--color-primary);
  opacity: 0.12;
  transform: translate(-8px, -8px);
}

.usecase-card__num {
  position: absolute;
  top: 12px;
  right: 16px;
  z-index: -1;
  font-size: 6.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-gray-100);
  letter-spacing: -0.04em;
  font-feature-settings: "tnum";
  transition: color 0.4s ease, opacity 0.4s ease, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.usecase-card__body {
  flex: 1;
  position: relative;
  z-index: 1;
}

.usecase-card__label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 16px;
  display: inline-block;
  padding-left: 28px;
  position: relative;
}

.usecase-card__label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 20px;
  height: 1px;
  background: var(--color-primary);
}

.usecase-card__title {
  font-size: 1.375rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 16px;
  color: var(--color-gray-800);
  letter-spacing: -0.01em;
}

.usecase-card__text {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  line-height: 1.9;
}

/* --- Vision (Dark section) --- */
.vision-text {
  font-size: 1.0625rem;
  color: var(--color-gray-400);
  line-height: 2;
  max-width: 740px;
  margin: 0 auto;
  text-align: center;
}

.vision-text strong {
  color: var(--color-white);
}

.vision-roadmap {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.vision-step {
  text-align: center;
  padding: 28px 24px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  min-width: 200px;
  flex: 1;
  max-width: 280px;
}

.vision-step__badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.vision-step__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-white);
}

.vision-step__text {
  font-size: 0.875rem;
  color: var(--color-gray-400);
  line-height: 1.7;
}

/* --- Expand Grid --- */
.expand-grid {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.expand-item {
  text-align: center;
  min-width: 140px;
}

.expand-item__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 12px;
  color: var(--color-gray-400);
}

.expand-item__icon svg {
  width: 100%;
  height: 100%;
}

.expand-item__name {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.expand-item__badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--color-gray-200);
  color: var(--color-gray-600);
}

.expand-item__badge--active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* --- CTA Section --- */
.cta {
  text-align: center;
  padding: 64px 0;
  background: var(--color-gray-50);
  border-radius: 12px;
}

.cta__title {
  font-size: 1.625rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta__text {
  color: var(--color-gray-600);
  margin-bottom: 28px;
  font-size: 1rem;
  line-height: 1.9;
}

.cta__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Section Feature (for section-ml-detection) --- */
.feature {
  display: flex;
  align-items: center;
  gap: 48px;
}

.feature__content {
  flex: 1;
}

.feature__image {
  flex: 0 0 420px;
  aspect-ratio: 4 / 3;
  background: var(--color-gray-100);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.feature__image svg {
  width: 80px;
  height: 80px;
  color: var(--color-gray-400);
}

.feature__title {
  font-size: 1.625rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.5;
}

.feature__text {
  font-size: 1rem;
  color: var(--color-gray-600);
  margin-bottom: 24px;
  line-height: 1.9;
}

/* --- Article (retained for compatibility) --- */
.article {
  max-width: 800px;
  margin: 0 auto;
}

/* --- Case Studies (vertically stacked cards with inline media) --- */
.case-study {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  padding: 40px;
  margin-top: 40px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.case-study:first-of-type {
  margin-top: 48px;
}

.case-study__header {
  margin-bottom: 28px;
}

.case-study__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.case-study__title {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 0;
}

.case-study__title small {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-gray-600);
}

.case-study__media {
  margin-bottom: 28px;
}

.case-study__images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.case-study__figure {
  margin: 0;
}

.case-study__image-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-gray-100);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-study__image-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--color-white);
}

.case-study__image-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--color-gray-400);
  font-size: 0.8125rem;
  text-align: center;
  padding: 16px;
}

.case-study__image-placeholder svg {
  width: 56px;
  height: 56px;
  opacity: 0.6;
}

.case-study__image-placeholder--heatmap {
  background: linear-gradient(
    135deg,
    rgba(214, 51, 132, 0.12),
    rgba(255, 165, 0, 0.18) 45%,
    rgba(255, 235, 59, 0.22) 70%,
    rgba(59, 130, 246, 0.12)
  );
  color: var(--color-gray-600);
  width: 100%;
  height: 100%;
}

.case-study__image-placeholder--heatmap svg {
  color: var(--color-primary);
  opacity: 0.8;
}

.case-study__figure figcaption {
  margin-top: 10px;
  font-size: 0.8125rem;
  color: var(--color-gray-600);
  text-align: center;
}

.case-study__body {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: start;
}

.case-study__text {
  font-size: 0.9375rem;
  color: var(--color-gray-800);
  line-height: 1.9;
  margin: 0;
}

.case-study__facts {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding: 20px 24px;
  background: var(--color-gray-50);
  border-radius: 8px;
  border-left: 3px solid var(--color-primary);
}

.case-study__facts > div {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 12px;
  align-items: baseline;
}

.case-study__facts dt {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.case-study__facts dd {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-gray-800);
  line-height: 1.6;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  :root:has(.washer-lp) {
    font-size: 14px;
  }

  .section__subtitle {
    text-align: left;
  }

  .section__subtitle br {
    display: none;
  }

  .hero__title {
    font-size: 1.875rem;
  }

  .hero__subtitle {
    font-size: 0.9375rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

  .benefit-acc__head {
    gap: 16px;
    padding: 22px 4px;
  }

  .benefit-acc__title {
    font-size: 1rem;
  }

  .benefit-acc__body {
    padding: 0 4px 24px 48px;
  }

  .tech-highlights {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .tech-highlights--stack .tech-highlight {
    gap: 18px;
    padding: 22px 20px;
  }

  .tech-highlights--stack .tech-highlight__icon {
    width: 48px;
    height: 48px;
    padding: 10px;
  }

  .usecase-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .usecase-card {
    padding: 32px 24px 28px;
  }

  .usecase-card__num {
    font-size: 4.5rem;
    top: 8px;
    right: 12px;
  }

  .usecase-card__title {
    font-size: 1.1875rem;
  }

  .solution-flow {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 24px 0 0;
  }

  .solution-step {
    display: grid;
    grid-template-columns: 32px 48px 1fr;
    column-gap: 14px;
    row-gap: 6px;
    text-align: left;
    max-width: none;
    min-width: 0;
    padding: 18px 0;
    align-items: center;
  }

  .solution-step__number {
    grid-row: 1;
    grid-column: 1;
    margin: 0;
    width: 32px;
    height: 32px;
    font-size: 0.8125rem;
  }

  .solution-step__icon {
    grid-row: 1;
    grid-column: 2;
    margin: 0;
    width: 40px;
    height: 40px;
  }

  .solution-step__title {
    grid-column: 3;
    grid-row: 1;
    margin: 0;
    font-size: 1rem;
  }

  .solution-step__text {
    grid-column: 1 / 4;
    grid-row: 2;
    margin: 0;
    font-size: 0.875rem;
  }

  .solution-flow .flow-arrow {
    display: none;
  }

  .stats-grid {
    gap: 32px;
  }

  .stat__number {
    font-size: 2.5rem;
  }

  .feature {
    flex-direction: column-reverse;
    gap: 24px;
  }

  .feature__image {
    flex: none;
    width: 100%;
  }

  .case-study {
    padding: 28px 20px;
  }

  .case-study__title {
    font-size: 1.25rem;
  }

  .case-study__images {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .case-study__body {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .case-study__facts > div {
    grid-template-columns: 76px 1fr;
  }

  .section__title {
    font-size: 1.5rem;
  }

  .benefit-card--highlight {
    grid-column: auto;
  }

  .vision-roadmap {
    flex-direction: column;
    align-items: center;
  }

  .vision-step {
    max-width: 100%;
  }

  .site-header__nav {
    display: none;
  }

  .section {
    padding: 48px 0;
  }

  .hero {
    padding: 96px 0 80px;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

  .feature__image {
    flex: 0 0 320px;
  }

  .hero__title {
    font-size: 2.25rem;
  }
}