.about-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3.5rem, 6vw, 5rem) clamp(5rem, 8vw, 7rem);
  background: var(--color-brand-soft);
}

.about-hero__layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(20rem, 0.8fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.about-hero__copy > p:first-child,
.about-heading > p:first-child,
.about-next__layout > div > p {
  margin-bottom: var(--space-2);
  color: var(--color-ink);
  font-size: var(--step--1);
  font-weight: 800;
  letter-spacing: 0.13em;
}

.about-hero h1 {
  margin-bottom: var(--space-4);
  color: var(--color-brand-strong);
  font-size: clamp(2.1rem, 1.85rem + 1.1vw, 3rem);
  line-height: 1.3;
}

.about-hero__copy > p:last-child {
  max-width: 34rem;
  color: var(--color-ink-muted);
}

.about-hero__visual {
  position: relative;
  aspect-ratio: 16 / 10;
  margin: 0 -3rem 0 0;
}

.about-hero__visual img {
  width: 100%;
  height: 100%;
  border-radius: 62% 38% 0 0 / 46% 54% 0 0;
  object-fit: cover;
}

.about-hero__visual figcaption {
  position: absolute;
  right: 4rem;
  bottom: var(--space-3);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-white) 90%, transparent);
  color: var(--color-ink-muted);
  font-size: var(--step--1);
}

.about-axis {
  pointer-events: none;
}

.about-axis path {
  fill: none;
  stroke: color-mix(in srgb, var(--color-brand) 48%, transparent);
  stroke-width: 2.2;
  stroke-dasharray: 4 11;
  stroke-linecap: round;
}

.about-axis--hero {
  position: absolute;
  right: -2rem;
  bottom: 1rem;
  left: -2rem;
  width: calc(100% + 4rem);
  height: 11rem;
}

.about-origin {
  background: var(--color-paper);
}

.about-origin__layout {
  display: grid;
  grid-template-columns: minmax(19rem, 0.62fr) minmax(0, 1.08fr);
  gap: clamp(3rem, 9vw, 9rem);
  align-items: center;
}

.about-origin__copy {
  max-width: 34rem;
}

.about-index {
  display: flex;
  margin-bottom: var(--space-4);
  gap: var(--space-3);
  align-items: center;
  color: var(--color-ink);
  font-size: var(--step--1);
  font-weight: 800;
}

.about-index span {
  display: grid;
  width: 3rem;
  height: 3rem;
  place-items: center;
  border-radius: 50%;
  background: var(--color-brand-strong);
  color: var(--color-white);
}

.about-origin h2,
.about-heading h2,
.about-next h2 {
  font-size: var(--step-2);
}

.about-origin__copy > p:not(.about-index) {
  color: var(--color-ink-muted);
}

.about-origin__copy > p + p { margin-top: var(--space-3); }

.about-origin__collage {
  position: relative;
  min-height: 30rem;
}

.about-origin__collage figure {
  position: absolute;
  overflow: hidden;
  margin: 0;
  box-shadow: 0 0 0 0.55rem color-mix(in srgb, var(--color-brand-soft) 58%, transparent);
}

.about-origin__collage figure:nth-child(1) {
  top: 0;
  left: 0;
  width: 64%;
  aspect-ratio: 16 / 10;
  border-radius: 58% 42% 38% 62% / 48% 38% 62% 52%;
  transform: rotate(-3deg);
}

.about-origin__collage figure:nth-child(2) {
  z-index: 2;
  top: 8rem;
  right: 0;
  width: 48%;
  aspect-ratio: 4 / 5;
  border-radius: 42% 58% 64% 36% / 55% 43% 57% 45%;
  transform: rotate(3deg);
}

.about-origin__collage figure:nth-child(3) {
  bottom: 0;
  left: 10%;
  width: 52%;
  aspect-ratio: 7 / 5;
  border-radius: 35% 65% 54% 46% / 63% 39% 61% 37%;
  transform: rotate(2deg);
}

.about-origin__collage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-origin__collage figcaption {
  position: absolute;
  right: var(--space-2);
  bottom: var(--space-2);
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-white) 90%, transparent);
  color: var(--color-ink-muted);
  font-size: var(--step--1);
}

.about-meaning { background: var(--color-white); }
.about-meaning__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
.about-meaning__grid article { padding: var(--space-5); border-top: 2px solid var(--color-accent); background: var(--color-paper); }
.about-meaning__grid span { color: var(--color-ink); font-family: var(--font-display); font-size: var(--step-3); font-weight: 700; }
.about-meaning__grid h3 { margin-block: var(--space-2); font-size: var(--step-1); }
.about-meaning__grid p { margin: 0; color: var(--color-ink-muted); }

.about-regions {
  overflow: hidden;
  background: var(--color-mist);
}

.about-regions .container {
  position: relative;
}

.about-heading {
  position: relative;
  z-index: 2;
  max-width: 48rem;
  margin-bottom: var(--space-7);
}

.about-heading h2 {
  margin-bottom: var(--space-3);
}

.about-heading > p:last-child {
  max-width: 38rem;
  color: var(--color-ink-muted);
}

.about-region-list {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(4rem, 9vw, 8rem);
}

.about-region {
  --region-color: var(--color-brand);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(18rem, 0.62fr);
  gap: clamp(2rem, 8vw, 8rem);
  align-items: center;
}

.about-region--sunshin { --region-color: var(--color-sunshin); }
.about-region--yulan { --region-color: var(--color-yulan); }
.about-region--tiansongpi { --region-color: var(--color-tiansongpi); }
.about-region--hongchailin { --region-color: var(--color-hongchailin); }

.about-region:nth-child(even) {
  grid-template-columns: minmax(18rem, 0.62fr) minmax(0, 1.08fr);
}

.about-region:nth-child(even) .about-region__visual {
  grid-column: 2;
  border-radius: 37% 63% 58% 42% / 58% 41% 59% 42%;
}
.about-region:nth-child(even) > div { grid-column: 1; grid-row: 1; padding-left: clamp(0rem, 5vw, 5rem); }

.about-region__visual {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border-radius: 56% 44% 38% 62% / 48% 38% 62% 52%;
  box-shadow: 0 0 0 0.6rem color-mix(in srgb, var(--region-color) 14%, transparent);
}

.about-region__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms ease;
}

.about-region__visual:hover img { transform: scale(1.025); }
.about-region > div { max-width: 31rem; }
.about-region > div > p:first-child { color: var(--color-ink); font-size: var(--step--1); font-weight: 900; letter-spacing: 0.12em; }
.about-region h3 { margin-bottom: var(--space-3); font-size: var(--step-2); }
.about-region h3 a { text-decoration: none; }
.about-region > div > p:not(:first-child) { color: var(--color-ink-muted); }

.about-next {
  background: var(--color-partner);
}

.about-next__layout {
  display: flex;
  gap: var(--space-6);
  align-items: end;
  justify-content: space-between;
}

.about-next__layout h2 { margin: 0; }
.about-next__layout > div:last-child { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.about-next .button--outline { color: var(--color-brand-strong); }

@media (max-width: 959px) {
  .about-hero__layout,
  .about-origin__layout {
    grid-template-columns: 1fr;
  }

  .about-hero__visual { margin-right: -2rem; }
  .about-meaning__grid { grid-template-columns: 1fr; }
  .about-origin__collage { width: min(43rem, 100%); margin-inline: auto; }
  .about-region,
  .about-region:nth-child(even) { grid-template-columns: minmax(0, 1fr) minmax(17rem, 0.7fr); gap: var(--space-5); }
  .about-region:nth-child(even) .about-region__visual,
  .about-region:nth-child(even) > div { grid-column: auto; grid-row: auto; }
  .about-region:nth-child(even) > div { padding-left: 0; }
}

@media (max-width: 639px) {
  .about-hero { padding-block: var(--space-7) var(--space-8); }
  .about-hero__layout { gap: var(--space-5); }
  .about-hero h1 { font-size: clamp(1.95rem, 7vw, 2.45rem); }
  .about-hero__visual { aspect-ratio: 4 / 3; margin-right: -0.625rem; }
  .about-hero__visual figcaption { right: var(--space-2); }
  .about-origin__collage { display: grid; min-height: 0; gap: var(--space-3); grid-template-columns: 1fr 1fr; }
  .about-origin__collage figure,
  .about-origin__collage figure:nth-child(1),
  .about-origin__collage figure:nth-child(2),
  .about-origin__collage figure:nth-child(3) { position: relative; inset: auto; width: 100%; aspect-ratio: 4 / 3; transform: none; }
  .about-origin__collage figure:nth-child(1) { grid-column: 1 / -1; }
  .about-region,
  .about-region:nth-child(even) { display: flex; flex-direction: column; gap: var(--space-4); }
  .about-region:nth-child(even) { flex-direction: column-reverse; }
  .about-region__visual { width: calc(100% - 1.5rem); margin-left: auto; }
  .about-region > div { width: calc(100% - 2rem); margin-left: auto; }
  .about-next__layout { align-items: stretch; flex-direction: column; }
  .about-next__layout > div:last-child { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .about-region__visual img { transition: none; }
}