.page-about {
  --about-gap: clamp(16px, 3vw, 28px);
  --about-shell: 1180px;
  background: var(--mist);
  color: var(--ink);
  overflow-x: clip;
}

.page-about .about-hero {
  padding-top: clamp(20px, 3vw, 32px);
  padding-bottom: clamp(40px, 7vw, 80px);
}

.page-about .about-hero .crumbs {
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 48px);
  align-items: end;
}

.page-about .about-hero__title {
  margin: 14px 0 20px;
  font-size: clamp(34px, 6.6vw, 74px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 800;
  max-width: 18ch;
}

.page-about .about-hero__lead .lead {
  max-width: 62ch;
}

.page-about .about-hero__aside {
  display: none;
}

.page-about .about-path {
  width: 100%;
  height: auto;
  opacity: 0.9;
}

.page-about .about-figures {
  list-style: none;
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 2px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-figures li {
  background: var(--white);
  padding: 18px 16px;
}

.page-about .about-figure__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 4.4vw, 42px);
  letter-spacing: -0.02em;
  color: var(--blue);
  line-height: 1.1;
}

.page-about .about-figure__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--grey);
}

.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 36px);
  margin-top: 20px;
}

.page-about .about-origin__grid .h2 {
  max-width: 20ch;
}

.page-about .about-version__intro {
  max-width: 58ch;
  margin-top: 14px;
}

.page-about .about-media-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

.page-about .about-media-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

.page-about .about-jump {
  list-style: none;
  margin: clamp(22px, 4vw, 34px) 0 clamp(26px, 4vw, 40px);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-jump a {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease), color 0.22s var(--ease);
}

.page-about .about-jump a:hover,
.page-about .about-jump a:focus-visible {
  border-color: var(--cyan);
  color: var(--blue-deep);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.18);
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
  opacity: 0.32;
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 42px;
  padding-bottom: clamp(34px, 5vw, 60px);
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--blue);
  box-shadow: 0 0 0 5px rgba(11, 95, 255, 0.1);
  transition: background 0.24s var(--ease), box-shadow 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-about .about-timeline__item.is-visible .about-timeline__dot {
  background: var(--blue);
  border-color: var(--blue-deep);
  box-shadow: 0 0 0 6px rgba(0, 229, 255, 0.22);
}

.page-about .about-timeline__meta {
  display: block;
  margin-bottom: 8px;
}

.page-about .about-timeline__ver {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--blue);
}

.page-about .about-timeline__era {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--grey);
}

.page-about .about-timeline__body .h3 {
  margin: 0 0 10px;
}

.page-about .about-timeline__body p {
  margin: 0 0 12px;
  max-width: 68ch;
  line-height: 1.7;
}

.page-about .about-note {
  margin-top: 16px;
  background: var(--white);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-about .about-note:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 46px rgba(26, 29, 36, 0.14);
}

.page-about .about-note__key {
  margin: 0 0 8px;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--blue);
  background: var(--tag);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
}

.page-about .about-note p {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--grey);
}

.page-about .about-note p:last-child {
  margin-bottom: 0;
}

.page-about .about-note__more {
  max-height: none;
  opacity: 1;
  overflow: hidden;
  transition: max-height 0.26s var(--ease), opacity 0.26s var(--ease);
}

.page-about .about-today__intro {
  max-width: 58ch;
  margin-top: 14px;
}

.page-about .about-services {
  margin-top: clamp(26px, 4vw, 42px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 22px);
}

.page-about .about-service {
  background: var(--white);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 28px);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-about .about-service:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.page-about .about-service__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-about .about-service .h3 {
  margin: 0 0 10px;
}

.page-about .about-service p {
  margin: 0 0 14px;
  line-height: 1.7;
  max-width: 60ch;
}

.page-about .about-service__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: center;
  margin-top: 20px;
}

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

.page-about .about-team__figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

.page-about .about-team__copy .h2 {
  margin-bottom: 16px;
  max-width: 18ch;
}

.page-about .about-roles {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 20px);
}

.page-about .about-role .card__head {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-about .about-role__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(32px, 5vw, 44px);
  color: var(--blue);
  letter-spacing: -0.02em;
}

.page-about .about-role__unit {
  font-size: 14px;
  color: var(--grey);
}

.page-about .about-role .card__body p {
  margin: 10px 0 0;
  color: var(--grey);
  line-height: 1.7;
}

.page-about .about-quality {
  background: var(--ink);
  border-radius: var(--radius-xl);
  color: var(--white);
  margin-inline: clamp(0px, 2vw, 24px);
}

.page-about .about-quality .section__no {
  color: var(--cyan);
}

.page-about .about-quality__title {
  color: var(--white);
  max-width: 22ch;
}

.page-about .about-quality__lead {
  color: rgba(255, 255, 255, 0.72);
  max-width: 58ch;
  margin-top: 14px;
}

.page-about .about-quality__grid {
  margin-top: clamp(26px, 4vw, 42px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-quality__item {
  background: var(--night);
  padding: clamp(20px, 3vw, 28px);
}

.page-about .about-quality__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(18px, 2.6vw, 22px);
  color: var(--cyan);
  margin-bottom: 10px;
}

.page-about .about-quality__item p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.7;
  font-size: 15px;
}

.page-about .about-quality__foot {
  margin-top: clamp(24px, 4vw, 36px);
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(11, 95, 255, 0.34), rgba(0, 229, 255, 0.16));
  border: 1px solid rgba(0, 229, 255, 0.28);
}

.page-about .about-quality__foot p {
  margin: 0;
  max-width: 66ch;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
}

.page-about .about-reach__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: center;
  margin-top: 20px;
}

.page-about .about-reach__copy .h2 {
  margin-bottom: 16px;
}

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

.page-about .about-reach__figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

.page-about .about-reach__stats {
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 2px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-reach__stats > div {
  background: var(--white);
  padding: 18px 16px;
}

.page-about .about-reach__stats dt {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--grey);
}

.page-about .about-reach__stats dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 30px);
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-about .about-next {
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-about .about-next__card {
  background: var(--white);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-xl);
  padding: clamp(26px, 4vw, 46px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  align-items: center;
}

.page-about .about-next__copy .h2 {
  margin: 0 0 12px;
}

.page-about .about-next__copy p {
  margin: 0;
  max-width: 58ch;
  line-height: 1.7;
  color: var(--grey);
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 720px) {
  .page-about .about-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-services {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-roles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-quality__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-reach__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  }

  .page-about .about-hero__aside {
    display: block;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }

  .page-about .about-timeline__item {
    display: grid;
    grid-template-columns: 148px minmax(0, 1fr);
    column-gap: 36px;
  }

  .page-about .about-timeline__meta {
    margin-bottom: 0;
    padding-top: 4px;
  }

  .page-about .about-quality__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-next__card {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-about .about-note__more {
    max-height: 0;
    opacity: 0;
  }

  .page-about .about-note:hover .about-note__more,
  .page-about .about-note:focus-within .about-note__more {
    max-height: 160px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-jump a,
  .page-about .about-service,
  .page-about .about-note,
  .page-about .about-timeline__dot,
  .page-about .about-note__more {
    transition: none;
  }
}