.ratio-page {
  padding-top: 1rem;
}
.ratio-nav {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  padding: 1rem 0 2rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.85rem;
}
.ratio-section-links {
  display: flex;
  gap: 2rem;
}
.ratio-page a:focus-visible,
.ratio-page summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 6px;
}
.ratio-hero {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 4vw;
  align-items: center;
  padding: 5rem 0 7rem;
}
.ratio-name {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 2rem;
}
.ratio-name img,
.ratio-cta > img {
  border-radius: 22%;
}
.ratio-hero h1 {
  font-size: clamp(2rem, 3.2vw, 3.6rem);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.02em;
  margin: 0.8rem 0 1.8rem;
}
.ratio-lead {
  color: var(--prose);
  line-height: 2.2;
  margin-bottom: 2rem;
}
.ratio-badge-space {
  padding: 12px;
  margin: -12px -12px 0;
  width: max-content;
}
.ratio-store-badge {
  display: block;
  width: max-content;
}
.ratio-store-badge img {
  width: auto;
  height: 48px;
  max-width: none;
}
.ratio-note {
  color: var(--muted);
  font-size: 0.78rem;
  margin-top: 0.7rem;
}
.ratio-hero-art {
  position: relative;
  aspect-ratio: 0.9;
  isolation: isolate;
  color: #28332f;
}
.ratio-hero-art::before {
  content: '';
  position: absolute;
  inset: 3.5% 9.5% 2% 11%;
  border-radius: 22% / 17%;
  background: #b7d6d1;
  z-index: -1;
}
.ratio-art-label {
  position: absolute;
  top: 15%;
  left: 10%;
  width: 82%;
  white-space: nowrap;
  text-align: center;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.1vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
  font-style: italic;
}
.ratio-mac {
  position: absolute;
  left: 6.65%;
  top: 25.1%;
  width: 88.2%;
  aspect-ratio: 2397 / 1652;
  box-shadow: 0 18px 40px #183f3526;
  border-radius: clamp(8px, 1.2vw, 18px);
  overflow: hidden;
}
.ratio-phone {
  position: absolute;
  width: 23.8%;
  right: 6.5%;
  bottom: 17.4%;
  aspect-ratio: 1206 / 2622;
  overflow: hidden;
  border-radius: clamp(6px, 1vw, 14px);
  box-shadow: 0 15px 35px #183f352b;
}
.ratio-slide {
  border-radius: inherit;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 850ms ease;
}
.ratio-slide.is-active {
  opacity: 1;
}
.ratio-slide-controls {
  position: absolute;
  bottom: 9.5%;
  left: 10%;
  right: 8%;
  display: flex;
  justify-content: center;
  gap: 1.2rem;
  align-items: center;
  font-family: -apple-system, BlinkMacSystemFont, 'Noto Sans JP', sans-serif;
}
.ratio-slide-controls[hidden] {
  display: none;
}
.ratio-slide-controls [role='group'] {
  display: flex;
  gap: 0.35rem;
}
.ratio-slide-controls button {
  padding: 0.4rem 0.65rem;
  border: 1px solid #28332f60;
  border-radius: 4px;
  background: transparent;
  color: #28332f;
  font-size: 0.8rem;
  line-height: 1.6;
  min-height: 30px;
}
.ratio-slide-controls button[aria-pressed='true']:not(.ratio-slide-pause) {
  background: #28332f;
  color: #faf9f2;
}
.ratio-slide-controls button:hover {
  border-color: var(--ink);
}
.ratio-slide-controls button:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  .ratio-slide {
    transition: none;
  }
}
.ratio-features {
  border-top: 1px solid var(--line);
  padding: 4rem 0;
}
.ratio-page h2 {
  font-size: clamp(1.7rem, 2.7vw, 2.6rem);
  font-weight: 500;
  line-height: 1.6;
}
.ratio-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 3vw;
  margin-top: 3rem;
}
.ratio-feature {
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
}
.ratio-number {
  font-family: var(--serif);
  color: var(--muted);
  font-size: 1.15rem;
  margin-bottom: 1rem;
}
.ratio-feature h3 {
  font-size: clamp(1.5rem, 2.2vw, 2.2rem);
  font-weight: 500;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}
.ratio-feature p:not(.ratio-number) {
  color: var(--prose);
}
.ratio-feature .ratio-detail {
  font-size: 0.8rem;
  margin-top: 1rem;
  color: var(--muted);
}
.ratio-faq {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 5rem;
}
.ratio-faq details {
  border-bottom: 1px solid var(--line);
  padding: 1.3rem 0;
}
.ratio-faq details:first-child {
  border-top: 1px solid var(--line);
}
.ratio-faq summary {
  cursor: pointer;
  font-size: 1rem;
}
.ratio-faq details p {
  font-size: 0.9rem;
  color: var(--prose);
  padding: 1rem 0 0;
}
.ratio-cta {
  text-align: center;
  border-top: 1px solid var(--line);
  padding: 4rem 0 6rem;
}
.ratio-cta > img {
  margin: 0 auto 1rem;
}
.ratio-cta > p[lang] {
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
}
.ratio-cta h2 {
  margin: 0.7rem 0 1.8rem;
}
.ratio-home-art {
  background: #b7d6d1;
  display: grid;
  place-items: center;
}
.ratio-home-art img {
  width: 36%;
  height: auto;
  border-radius: 22%;
  box-shadow: 0 16px 40px #28332f20;
}

.ratio-policy {
  margin-top: 2rem;
  font-size: 0.85rem;
}
.ratio-trademark {
  max-width: 44rem;
  margin: 2rem auto 0;
  font-size: 0.7rem;
  color: var(--muted);
}
@media (max-width: 850px) {
  .ratio-hero {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 3rem 0 4rem;
  }
  .ratio-hero-art {
    width: 90%;
    max-width: 600px;
    margin: auto;
  }
  .ratio-hero h1 {
    font-size: clamp(2rem, 6vw, 3.4rem);
  }
  .ratio-feature-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .ratio-feature {
    padding: 2rem 0;
  }
  .ratio-faq {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}
@media (max-width: 450px) {
  .ratio-section-links {
    gap: 1rem;
  }
  .ratio-nav {
    font-size: 0.75rem;
  }
  .ratio-art-label {
    font-size: clamp(1rem, 4.3vw, 1.35rem);
  }
  .ratio-hero-art {
    padding: 0;
  }
  .ratio-slide-controls {
    left: 10%;
    right: 8%;
    bottom: 8%;
    gap: 0.6rem;
  }
  .ratio-slide-controls button {
    padding: 0.2rem 0.35rem;
    font-size: 0.58rem;
  }
}

.ratio-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.ratio-breadcrumb li {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}
.ratio-breadcrumb [aria-current='page'] {
  color: var(--muted);
}
.ratio-breadcrumb a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.ratio-slide-controls .ratio-slide-pause {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  min-height: 44px;
  padding: 0;
  display: grid;
  place-items: center;
  border: 1px solid #28332f30;
  border-radius: 50%;
  background: transparent;
  color: #28332f;
  font: 1rem/1 sans-serif;
}

@media (min-width: 451px) and (max-width: 850px) {
  .ratio-art-label {
    font-size: clamp(1.4rem, 4vw, 2rem);
  }
}

@media (max-width: 600px) {
  .ratio-hero-art {
    width: calc(100% + 2rem);
    max-width: none;
    margin-inline: -1rem;
  }
  .ratio-art-label {
    font-size: clamp(1.15rem, 4.8vw, 1.8rem);
  }
  .ratio-slide-controls button:not(.ratio-slide-pause) {
    font-size: 0.7rem;
    min-height: 32px;
    padding: 0.3rem 0.45rem;
  }
}

@media (max-width: 600px) {
  .ratio-hero-art {
    margin-bottom: 32px;
  }
  .ratio-hero-art::before {
    bottom: -32px;
  }
  .ratio-slide-controls {
    bottom: -4px;
  }
}