.page-about {
  --about-ink: var(--sg-deep);
  --about-hair: rgba(169, 201, 222, .55);
  --about-soft: rgba(11, 42, 74, .055);
  --about-shadow: 0 26px 64px -46px rgba(6, 26, 46, .78);
  background: var(--sg-white);
  color: var(--sg-deep);
  overflow-x: hidden;
}

/* ---------- hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(64px, 9vw, 116px) 0 clamp(42px, 6vw, 80px);
  background:
    radial-gradient(120% 82% at 92% 2%, rgba(43, 127, 184, .18), transparent 62%),
    radial-gradient(88% 70% at -8% 94%, rgba(47, 227, 176, .13), transparent 58%),
    var(--sg-white);
}

.page-about .about-hero__inner {
  display: grid;
  gap: clamp(28px, 5vw, 54px);
  align-items: center;
}

.page-about .about-hero__text .sg-breadcrumb {
  margin-bottom: 18px;
}

.page-about .about-hero h1 {
  font-family: var(--sg-font-display);
  font-weight: 700;
  font-size: clamp(1.95rem, 5.6vw, 4.05rem);
  line-height: 1.08;
  letter-spacing: -.018em;
  margin: 12px 0 0;
  color: var(--sg-deep);
}

.page-about .about-hero__lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.78;
  color: var(--sg-tide);
}

.page-about .about-hero__actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  border-radius: var(--sg-radius-l);
  overflow: hidden;
  border: 1px solid var(--about-hair);
  box-shadow: var(--about-shadow);
  background: var(--sg-mist);
}

.page-about .about-hero__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-about .about-hero__caption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--sg-radius-m);
  background: rgba(6, 26, 46, .64);
  border: 1px solid rgba(169, 201, 222, .42);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--sg-white);
  font-size: .82rem;
  line-height: 1.45;
}

.page-about .about-hero__year {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: .04em;
}

/* ---------- capabilities ---------- */
.page-about .about-capabilities__inner {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-capabilities__title {
  font-family: var(--sg-font-display);
  font-size: clamp(1.65rem, 3.6vw, 2.5rem);
  line-height: 1.22;
  letter-spacing: -.015em;
  margin: 14px 0 0;
  color: var(--sg-deep);
}

.page-about .about-capabilities__intro {
  margin: 16px 0 0;
  max-width: 26em;
  font-size: .97rem;
  line-height: 1.78;
  color: var(--sg-tide);
}

.page-about .about-capabilities__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--about-hair);
}

.page-about .about-capabilities__item {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0 clamp(10px, 2vw, 22px);
  padding: clamp(18px, 2.4vw, 26px) clamp(6px, 1.4vw, 16px);
  border-bottom: 1px solid var(--about-hair);
  transition: background .28s var(--sg-ease);
}

.page-about .about-capabilities__item:hover,
.page-about .about-capabilities__item:focus-within {
  background: var(--about-soft);
}

.page-about .about-capabilities__num {
  font-family: var(--sg-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .86rem;
  letter-spacing: .06em;
  color: var(--sg-sea);
  padding-top: .42em;
  transition: color .28s var(--sg-ease);
}

.page-about .about-capabilities__item:hover .about-capabilities__num,
.page-about .about-capabilities__item:focus-within .about-capabilities__num {
  color: var(--sg-deep);
}

.page-about .about-capabilities__name {
  margin: 0;
  font-family: var(--sg-font-sans);
  font-size: clamp(1.04rem, 1.7vw, 1.2rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--sg-deep);
}

.page-about .about-capabilities__body p {
  margin: 8px 0 0;
  max-width: 36em;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--sg-tide);
}

.page-about .about-capabilities__link {
  display: inline-flex;
  align-items: center;
  gap: .4em;
  margin-top: 12px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--sg-sea);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .22s var(--sg-ease), border-color .22s var(--sg-ease);
}

.page-about .about-capabilities__link::after {
  content: "→";
  transition: transform .22s var(--sg-ease);
}

.page-about .about-capabilities__item:hover .about-capabilities__link,
.page-about .about-capabilities__link:focus-visible {
  color: var(--sg-deep);
  border-bottom-color: var(--sg-sea);
}

.page-about .about-capabilities__link:focus-visible {
  outline: 2px solid var(--sg-coral);
  outline-offset: 3px;
}

.page-about .about-capabilities__item:hover .about-capabilities__link::after {
  transform: translateX(3px);
}

/* ---------- timeline ---------- */
.page-about .about-timeline {
  background: linear-gradient(180deg, var(--sg-white) 0%, var(--sg-mist) 100%);
}

.page-about .about-timeline__title {
  font-family: var(--sg-font-display);
  font-size: clamp(1.6rem, 3.4vw, 2.35rem);
  line-height: 1.24;
  letter-spacing: -.015em;
  margin: 14px 0 0;
  max-width: 20em;
  color: var(--sg-deep);
}

.page-about .about-timeline__track {
  list-style: none;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .about-timeline__node {
  position: relative;
  padding-left: 22px;
  border-left: 1px solid var(--about-hair);
}

.page-about .about-timeline__node::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--sg-sea);
  border: 2px solid var(--sg-mist);
}

.page-about .about-timeline__summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  padding: 2px 0;
}

.page-about .about-timeline__summary::-webkit-details-marker {
  display: none;
}

.page-about .about-timeline__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--sg-font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--sg-sea);
}

.page-about .about-timeline__details[open] .about-timeline__summary::after {
  content: "–";
}

.page-about .about-timeline__summary:focus-visible {
  outline: 2px solid var(--sg-coral);
  outline-offset: 4px;
}

.page-about .about-timeline__year {
  font-family: var(--sg-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--sg-deep);
}

.page-about .about-timeline__name {
  font-size: .92rem;
  font-weight: 600;
  color: var(--sg-tide);
}

.page-about .about-timeline__text {
  margin: 10px 0 0;
  max-width: 30em;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--sg-tide);
}

/* ---------- team ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-about .about-team__figure {
  margin: 0;
  border-radius: var(--sg-radius-l);
  overflow: hidden;
  border: 1px solid var(--about-hair);
  background: var(--sg-white);
  box-shadow: var(--about-shadow);
}

.page-about .about-team__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-team__title {
  font-family: var(--sg-font-display);
  font-size: clamp(1.55rem, 3.2vw, 2.2rem);
  line-height: 1.26;
  letter-spacing: -.015em;
  margin: 14px 0 0;
  color: var(--sg-deep);
}

.page-about .about-team__headline {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 20px;
  padding: 14px 16px;
  border-radius: var(--sg-radius-m);
  background: var(--sg-white);
  border: 1px solid var(--about-hair);
  font-size: .92rem;
  line-height: 1.6;
  color: var(--sg-tide);
}

.page-about .about-team__big {
  font-family: var(--sg-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--sg-deep);
}

.page-about .about-team__roles {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .about-team__roles li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  background: var(--sg-white);
  border-left: 3px solid var(--sg-sea);
  border-radius: 0 var(--sg-radius-s) var(--sg-radius-s) 0;
  font-size: .9rem;
  color: var(--sg-tide);
}

.page-about .about-team__roles .sg-data {
  min-width: 2.1em;
  font-weight: 700;
  color: var(--sg-deep);
}

.page-about .about-team__note {
  margin: 24px 0 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--sg-tide);
}

.page-about .about-team__flow {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-team__flow li {
  padding: 14px;
  border: 1px solid var(--about-hair);
  border-radius: var(--sg-radius-m);
  background: rgba(247, 250, 252, .72);
  font-size: .85rem;
  line-height: 1.62;
  color: var(--sg-tide);
}

.page-about .about-team__step {
  display: block;
  margin-bottom: 6px;
  font-family: var(--sg-font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--sg-sea);
}

/* ---------- reach ---------- */
.page-about .about-reach__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-about .about-reach__title {
  font-family: var(--sg-font-display);
  font-size: clamp(1.55rem, 3.2vw, 2.25rem);
  line-height: 1.26;
  letter-spacing: -.015em;
  margin: 14px 0 0;
  color: var(--sg-deep);
}

.page-about .about-reach__lead {
  margin: 16px 0 0;
  max-width: 33em;
  font-size: .97rem;
  line-height: 1.78;
  color: var(--sg-tide);
}

.page-about .about-reach__tags {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-reach__tags li {
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid var(--about-hair);
  background: var(--sg-mist);
  font-family: var(--sg-font-mono);
  font-size: .78rem;
  letter-spacing: .02em;
  color: var(--sg-tide);
}

.page-about .about-reach__extra {
  margin: 20px 0 0;
  max-width: 33em;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--sg-salt);
}

.page-about .about-reach__figure {
  margin: 0;
  border-radius: var(--sg-radius-l);
  overflow: hidden;
  border: 1px solid var(--about-hair);
  background: var(--sg-mist);
  box-shadow: var(--about-shadow);
}

.page-about .about-reach__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

/* ---------- service ---------- */
.page-about .about-service {
  background: var(--sg-night);
  color: var(--sg-white);
}

.page-about .about-service__title {
  font-family: var(--sg-font-display);
  font-size: clamp(1.6rem, 3.4vw, 2.35rem);
  line-height: 1.24;
  letter-spacing: -.015em;
  margin: 14px 0 0;
  color: var(--sg-white);
}

.page-about .about-service__grid {
  margin-top: clamp(26px, 4vw, 42px);
  display: grid;
  gap: 1px;
  background: rgba(169, 201, 222, .28);
  border: 1px solid rgba(169, 201, 222, .28);
  border-radius: var(--sg-radius-m);
  overflow: hidden;
}

.page-about .about-service__stat {
  padding: 20px 18px;
  background: var(--sg-night);
}

.page-about .about-service__num {
  display: block;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.1;
}

.page-about .about-service__stat p {
  margin: 10px 0 0;
  font-size: .87rem;
  line-height: 1.7;
  color: rgba(247, 250, 252, .8);
}

.page-about .about-service__honor {
  margin: clamp(24px, 3.5vw, 36px) 0 0;
  padding: 18px 20px;
  border-left: 3px solid var(--sg-lime);
  border-radius: 0 var(--sg-radius-m) var(--sg-radius-m) 0;
  background: rgba(247, 250, 252, .06);
  max-width: 52em;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(247, 250, 252, .88);
}

/* ---------- next ---------- */
.page-about .about-next__title {
  font-family: var(--sg-font-display);
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.28;
  letter-spacing: -.015em;
  margin: 0 0 clamp(20px, 3vw, 30px);
  color: var(--sg-deep);
}

.page-about .about-next__grid {
  display: grid;
  gap: 14px;
}

.page-about .about-next__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 20px 46px;
  border: 1px solid var(--about-hair);
  border-radius: var(--sg-radius-l);
  background: var(--sg-white);
  text-decoration: none;
  transition: transform .26s var(--sg-ease), border-color .26s var(--sg-ease), box-shadow .26s var(--sg-ease);
}

.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--sg-sea);
  box-shadow: var(--about-shadow);
}

.page-about .about-next__card:focus-visible {
  outline: 2px solid var(--sg-coral);
  outline-offset: 3px;
}

.page-about .about-next__label {
  font-family: var(--sg-font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--sg-sea);
}

.page-about .about-next__card strong {
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--sg-deep);
}

.page-about .about-next__desc {
  font-size: .89rem;
  line-height: 1.7;
  color: var(--sg-tide);
}

.page-about .about-next__go {
  position: absolute;
  left: 20px;
  bottom: 18px;
  font-size: 1rem;
  color: var(--sg-sea);
  transition: transform .26s var(--sg-ease);
}

.page-about .about-next__card:hover .about-next__go {
  transform: translateX(4px);
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-about .about-team__flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: end;
  }

  .page-about .about-capabilities__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-about .about-capabilities__aside {
    position: sticky;
    top: 108px;
  }

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

  .page-about .about-timeline__track::before {
    content: "";
    position: absolute;
    top: 5px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--sg-sea), var(--sg-lime));
    opacity: .55;
  }

  .page-about .about-timeline__node {
    padding: 30px 26px 0 0;
    border-left: 0;
  }

  .page-about .about-timeline__node::before {
    left: 0;
    top: 0;
    background: var(--sg-mist);
    border-color: var(--sg-sea);
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  }

  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

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

@media (min-width: 1120px) {
  .page-about .about-hero__caption {
    left: 20px;
    bottom: 20px;
    padding: 12px 18px;
    font-size: .86rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-next__card,
  .page-about .about-next__go,
  .page-about .about-capabilities__link::after {
    transition: none;
  }

  .page-about .about-next__card:hover {
    transform: none;
  }

  .page-about .about-next__card:hover .about-next__go {
    transform: none;
  }
}