.page-about {
  background: var(--kai-off-white);
  overflow-x: hidden;
}

.page-about section[id] {
  scroll-margin-top: var(--kai-header-h);
}

.page-about img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-hero {
  position: relative;
  padding: calc(var(--kai-header-h) + 3.5rem) 0 3rem;
  background: linear-gradient(165deg, var(--kai-off-white) 0%, var(--kai-light-gray) 100%);
  overflow: hidden;
}

.page-about .about-hero__mountains {
  position: absolute;
  left: -5%;
  right: -5%;
  bottom: 0;
  width: 110%;
  height: 220px;
  pointer-events: none;
  z-index: 1;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 2.5rem;
}

.page-about .about-hero__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.25rem;
}

.page-about .about-hero__title {
  margin: 0;
  font-family: var(--kai-font-heading);
  font-weight: 900;
  font-size: clamp(2.5rem, 8vw, 4.6rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--kai-deep-blue);
}

.page-about .about-hero__lead {
  margin: 0;
  max-width: 32em;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--kai-dark-gray);
}

.page-about .about-num19 {
  display: inline-block;
  font-family: var(--kai-font-mono);
  font-size: 1.15em;
  font-weight: 700;
  color: var(--kai-orange-text);
  background: linear-gradient(180deg, #FFF4EF, #FFE2D4);
  padding: 0 0.35em;
  border-radius: 8px;
  margin: 0 0.1em;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.page-about .about-hero__anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  margin-top: 0.25rem;
}

.page-about .about-hero__anchor {
  font-size: 0.875rem;
  color: var(--kai-deep-blue);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color var(--kai-transition), color var(--kai-transition);
}

.page-about .about-hero__anchor:hover,
.page-about .about-hero__anchor:focus-visible {
  border-bottom-color: var(--kai-orange);
  color: var(--kai-orange);
}

.page-about .about-hero__meta {
  margin: 0.5rem 0 0;
  font-family: var(--kai-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--kai-sky-text);
}

.page-about .about-hero__figure {
  margin: 0;
}

.page-about .about-hero__frame {
  border-radius: var(--kai-radius-lg);
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 107, 53, 0.25);
  box-shadow: var(--kai-shadow-lg);
  background: var(--kai-light-gray);
}

.page-about .about-hero__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(160deg, rgba(255, 107, 53, 0.14) 0%, rgba(255, 255, 255, 0) 42%, rgba(27, 42, 74, 0.14) 100%);
  border-radius: inherit;
}

.page-about .about-hero__img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 240px;
  object-fit: cover;
}

.page-about .about-hero__caption {
  margin-top: 0.75rem;
  font-family: var(--kai-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--kai-orange-text);
  text-align: right;
}

.page-about .about-section-head {
  position: relative;
  padding: 1.25rem 0 2.25rem;
}

.page-about .about-section-head--centered {
  text-align: center;
}

.page-about .about-section-head__note {
  position: absolute;
  top: 0.25rem;
  right: 0;
  margin: 0;
  writing-mode: vertical-rl;
  font-family: var(--kai-font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.3em;
  color: var(--kai-orange-text);
}

.page-about .about-section-head h2 {
  margin: 0.5rem 0 0;
  font-family: var(--kai-font-heading);
  font-weight: 900;
  font-size: clamp(1.6rem, 4.6vw, 2.6rem);
  line-height: 1.3;
  color: var(--kai-deep-blue);
  max-width: 18em;
}

.page-about .about-section-head--on-dark h2 {
  color: var(--kai-off-white);
}

.page-about .about-philosophy {
  padding: 4.5rem 0;
  background: var(--kai-white);
}

.page-about .about-philosophy__intro {
  max-width: 46rem;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--kai-dark-gray);
  border-left: 4px solid var(--kai-orange);
  padding-left: 1.25rem;
  margin-bottom: 2.5rem;
}

.page-about .about-grid {
  display: grid;
  gap: 1.25rem;
}

.page-about .about-grid--3 {
  grid-template-columns: 1fr;
}

.page-about .about-philosophy-card {
  position: relative;
  border-radius: var(--kai-radius-lg);
  background: var(--kai-off-white);
  border: 1px solid rgba(27, 42, 74, 0.08);
  padding: 2rem 1.5rem 1.75rem;
  box-shadow: var(--kai-shadow-sm);
  transition: transform var(--kai-transition), box-shadow var(--kai-transition), border-color var(--kai-transition);
}

.page-about .about-philosophy-card:hover,
.page-about .about-philosophy-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--kai-shadow-md);
  border-color: rgba(255, 107, 53, 0.35);
}

.page-about .about-philosophy-card__num {
  font-family: var(--kai-font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  color: var(--kai-orange-text);
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
}

.page-about .about-philosophy-card h3 {
  margin: 0 0 0.75rem;
  font-family: var(--kai-font-heading);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--kai-deep-blue);
}

.page-about .about-philosophy-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--kai-dark-gray);
}

.page-about .about-milestones {
  padding: 4.5rem 0;
  background: linear-gradient(180deg, var(--kai-light-gray) 0%, var(--kai-off-white) 100%);
}

.page-about .about-timeline {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
}

.page-about .about-timeline__line {
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--kai-orange) 0%, var(--kai-deep-blue) 55%, var(--kai-green) 100%);
  opacity: 0.35;
  border-radius: var(--kai-radius-pill);
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 2.5rem 3.25rem;
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0.5rem;
}

.page-about .about-timeline__node {
  position: absolute;
  left: 0;
  top: 0.25rem;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--kai-white);
  border: 2px solid var(--kai-orange);
  box-shadow: 0 0 0 5px rgba(255, 107, 53, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--kai-transition), box-shadow var(--kai-transition);
}

.page-about .about-timeline__item:hover .about-timeline__node,
.page-about .about-timeline__item:focus-within .about-timeline__node {
  background: var(--kai-orange);
  box-shadow: 0 0 0 8px rgba(255, 107, 53, 0.16);
}

.page-about .about-timeline__round {
  font-family: var(--kai-font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--kai-orange-text);
  transition: color var(--kai-transition);
}

.page-about .about-timeline__item:hover .about-timeline__round,
.page-about .about-timeline__item:focus-within .about-timeline__round {
  color: var(--kai-white);
}

.page-about .about-timeline__card {
  border-radius: var(--kai-radius-md);
  background: var(--kai-white);
  border: 1px solid rgba(27, 42, 74, 0.08);
  padding: 1.5rem 1.5rem 1.25rem;
  box-shadow: var(--kai-shadow-sm);
  transition: transform var(--kai-transition), border-color var(--kai-transition), box-shadow var(--kai-transition);
}

.page-about .about-timeline__item:hover .about-timeline__card,
.page-about .about-timeline__item:focus-within .about-timeline__card {
  transform: translateY(-3px);
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: var(--kai-shadow-md);
}

.page-about .about-timeline__phase {
  display: inline-block;
  font-family: var(--kai-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--kai-green-text);
  background: rgba(0, 184, 126, 0.1);
  border-radius: var(--kai-radius-pill);
  padding: 0.25rem 0.75rem;
  margin-bottom: 0.75rem;
}

.page-about .about-timeline__card h3 {
  margin: 0 0 0.625rem;
  font-family: var(--kai-font-heading);
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--kai-deep-blue);
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--kai-dark-gray);
}

.page-about .about-milestones__figure {
  margin: 3rem auto 0;
  max-width: 800px;
  border-radius: var(--kai-radius-lg);
  overflow: hidden;
  box-shadow: var(--kai-shadow-md);
  background: var(--kai-light-gray);
}

.page-about .about-milestones__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-milestones__figure figcaption {
  padding: 0.875rem 1.25rem;
  font-family: var(--kai-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--kai-deep-blue);
  background: var(--kai-white);
  text-align: center;
}

.page-about .about-guizhou {
  position: relative;
  padding: 4.5rem 0;
  background: linear-gradient(155deg, var(--kai-dark-blue) 0%, var(--kai-deep-blue) 60%, #142440 100%);
  color: var(--kai-off-white);
  overflow: hidden;
}

.page-about .about-guizhou__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 60% at 85% 10%, rgba(255, 107, 53, 0.14) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 10% 90%, rgba(0, 184, 126, 0.12) 0%, transparent 60%);
}

.page-about .about-guizhou__inner {
  position: relative;
  z-index: 2;
}

.page-about .about-guizhou__content {
  display: grid;
  gap: 2rem;
}

.page-about .about-guizhou__text {
  max-width: 34rem;
}

.page-about .about-guizhou__text p {
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(249, 249, 247, 0.88);
}

.page-about .about-guizhou__blockquote {
  margin: 1.5rem 0 0;
  padding: 0.5rem 1.25rem;
  border-left: 4px solid var(--kai-green);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--kai-white);
  line-height: 1.7;
}

.page-about .about-guizhou__peaks {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--kai-radius-lg);
  box-shadow: var(--kai-shadow-lg);
}

.page-about .about-tech {
  padding: 4.5rem 0;
  background: var(--kai-white);
}

.page-about .about-tech__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 0 0 2.5rem;
}

.page-about .about-stat {
  border-radius: var(--kai-radius-md);
  background: linear-gradient(145deg, var(--kai-off-white), var(--kai-light-gray));
  border: 1px solid rgba(27, 42, 74, 0.08);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: transform var(--kai-transition), box-shadow var(--kai-transition);
}

.page-about .about-stat:hover {
  transform: translateY(-3px);
  box-shadow: var(--kai-shadow-md);
}

.page-about .about-stat__value {
  display: block;
  font-family: var(--kai-font-mono);
  font-weight: 700;
  font-size: 2rem;
  line-height: 1.2;
  color: var(--kai-deep-blue);
}

.page-about .about-stat__value small {
  font-size: 0.875rem;
  color: var(--kai-orange-text);
  margin-left: 0.1em;
}

.page-about .about-stat__label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--kai-dark-gray);
}

.page-about .about-tech__figure {
  margin: 0 0 2.5rem;
  border-radius: var(--kai-radius-lg);
  overflow: hidden;
  box-shadow: var(--kai-shadow-md);
  background: var(--kai-light-gray);
  position: relative;
}

.page-about .about-tech__img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: cover;
}

.page-about .about-tech__figure figcaption {
  padding: 0.875rem 1.25rem;
  font-family: var(--kai-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--kai-sky-text);
  background: var(--kai-off-white);
  text-align: center;
}

.page-about .about-tech__text {
  display: grid;
  gap: 1.25rem;
}

.page-about .about-tech__paragraph {
  border-radius: var(--kai-radius-md);
  border-left: 4px solid var(--kai-orange);
  background: var(--kai-off-white);
  padding: 1.25rem 1.5rem;
}

.page-about .about-tech__paragraph:nth-child(2) {
  border-left-color: var(--kai-deep-blue);
}

.page-about .about-tech__paragraph:nth-child(3) {
  border-left-color: var(--kai-green);
}

.page-about .about-tech__paragraph h3 {
  margin: 0 0 0.5rem;
  font-family: var(--kai-font-heading);
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--kai-deep-blue);
}

.page-about .about-tech__paragraph p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--kai-dark-gray);
}

.page-about .about-outro {
  padding: 4rem 0;
  background: linear-gradient(180deg, var(--kai-white) 0%, var(--kai-light-gray) 100%);
}

.page-about .about-outro__inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.page-about .about-outro__inner h2 {
  margin: 0;
  font-family: var(--kai-font-heading);
  font-weight: 900;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  color: var(--kai-deep-blue);
}

.page-about .about-outro__inner p {
  margin: 0;
  color: var(--kai-dark-gray);
  line-height: 1.7;
  max-width: 30em;
}

.page-about .about-outro__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

@media (min-width: 600px) {
  .page-about .about-grid--3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-about .about-tech__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-about .about-tech__text {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-about .about-tech__paragraph {
    padding: 1.5rem;
  }

  .page-about .about-guizhou__content {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: calc(var(--kai-header-h) + 5rem);
    padding-bottom: 5rem;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 4rem;
    align-items: center;
  }

  .page-about .about-hero__visual {
    order: 2;
  }

  .page-about .about-hero__frame {
    border-radius: 36px;
  }

  .page-about .about-philosophy,
  .page-about .about-milestones,
  .page-about .about-guizhou,
  .page-about .about-tech,
  .page-about .about-outro {
    padding-top: 6rem;
    padding-bottom: 6rem;
  }

  .page-about .about-timeline__line {
    left: 50%;
    transform: translateX(-1px);
  }

  .page-about .about-timeline__item {
    width: 50%;
    padding: 0 3rem 3.5rem 0;
  }

  .page-about .about-timeline__item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 3rem;
  }

  .page-about .about-timeline__node {
    left: auto;
    right: -17px;
    top: 0.5rem;
  }

  .page-about .about-timeline__item:nth-child(even) .about-timeline__node {
    right: auto;
    left: -17px;
  }

  .page-about .about-timeline__card {
    padding: 1.75rem;
  }

  .page-about .about-timeline__item:nth-child(even) .about-timeline__card {
    text-align: left;
  }

  .page-about .about-milestones__figure {
    margin-top: 4rem;
  }

  .page-about .about-guizhou__content {
    gap: 4rem;
  }

  .page-about .about-guizhou__text p {
    font-size: 1.0625rem;
  }

  .page-about .about-tech__stats {
    margin-bottom: 3.5rem;
  }

  .page-about .about-tech__figure {
    margin-bottom: 3.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}