.page-about {
  --about-rail-w: 92px;
  --about-hair: rgba(183, 255, 248, 0.12);
  --about-hair-gold: rgba(233, 199, 126, 0.26);
  position: relative;
  background: var(--ink-800);
  color: var(--fog);
  overflow-x: clip;
  padding-bottom: clamp(56px, 9vw, 112px);
}

/* ---------- breadcrumb ---------- */
.page-about .breadcrumb {
  padding-block: clamp(18px, 3vw, 30px) clamp(8px, 2vw, 16px);
}
.page-about .breadcrumb__item {
  color: var(--salt);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.page-about .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-inline: 8px;
  color: rgba(156, 180, 193, 0.5);
}
.page-about .breadcrumb__item span[aria-current="page"] {
  color: var(--cyan-soft);
}

/* ---------- hero ---------- */
.about-hero {
  position: relative;
  padding-block: clamp(20px, 4vw, 44px) clamp(44px, 7vw, 92px);
  isolation: isolate;
}
.about-hero::before {
  content: "";
  position: absolute;
  inset: -14% -18% auto auto;
  width: min(680px, 88vw);
  height: min(680px, 88vw);
  border-radius: 46% 54% 58% 42% / 52% 42% 58% 48%;
  background: radial-gradient(circle at 34% 34%, rgba(36, 224, 208, 0.2), transparent 64%);
  filter: blur(28px);
  pointer-events: none;
  z-index: -1;
}
.about-hero::after {
  content: "";
  position: absolute;
  left: -12%;
  bottom: -8%;
  width: min(520px, 70vw);
  height: min(520px, 70vw);
  border-radius: 55% 45% 40% 60% / 45% 55% 45% 55%;
  background: radial-gradient(circle at 60% 40%, rgba(255, 106, 77, 0.16), transparent 66%);
  filter: blur(34px);
  pointer-events: none;
  z-index: -1;
}

.about-hero__grid {
  display: grid;
  gap: clamp(30px, 5vw, 60px);
  align-items: start;
}

.about-hero__copy .eyebrow {
  display: inline-block;
  color: var(--cyan-soft);
  margin-bottom: 16px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: clamp(34px, 6.4vw, 74px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
  color: var(--fog);
}
.about-hero__hl {
  position: relative;
  color: var(--cyan);
  padding-inline: 0.06em;
}
.about-hero__hl::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.16em;
  background: linear-gradient(90deg, var(--cyan), rgba(36, 224, 208, 0));
  border-radius: 999px;
  opacity: 0.55;
}

.about-hero__lede {
  max-width: 46em;
  color: rgba(243, 247, 246, 0.86);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.82;
  margin: 0;
}

.about-hero__metrics {
  margin-top: clamp(24px, 4vw, 38px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
  border-radius: var(--r-md);
  overflow: hidden;
}
.about-hero__metric {
  background: var(--ink-700);
  padding: 16px clamp(14px, 2vw, 22px);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.about-hero__metric-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 500;
  color: var(--cyan);
  letter-spacing: 0.02em;
  line-height: 1;
}
.about-hero__metric-label {
  font-size: 12.5px;
  color: var(--salt);
  letter-spacing: 0.04em;
}

.about-hero__media {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 34px 90px -46px rgba(3, 16, 25, 0.95);
  transform: rotate(-1.8deg);
  background: var(--ink-700);
}
.about-hero__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 5;
  object-fit: cover;
}
.about-hero__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 18px 14px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: rgba(243, 247, 246, 0.9);
  background: linear-gradient(180deg, rgba(3, 16, 25, 0), rgba(3, 16, 25, 0.88));
}

/* ---------- chapter index ---------- */
.about-index {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
  margin-inline: auto;
  max-width: 1240px;
  padding: 16px clamp(18px, 4.2vw, 64px);
  border-top: 1px solid var(--about-hair);
  border-bottom: 1px solid var(--about-hair);
  background: linear-gradient(180deg, rgba(11, 33, 53, 0.7), rgba(6, 24, 38, 0));
}
.about-index::-webkit-scrollbar {
  display: none;
}
.about-index__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--about-hair);
  color: var(--salt);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.about-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
}
.about-index__item:hover,
.about-index__item:focus-visible {
  color: var(--cyan-soft);
  border-color: var(--line-strong);
  background: rgba(36, 224, 208, 0.08);
  outline: none;
}

/* ---------- chapter shell ---------- */
.about-chapter {
  position: relative;
  padding-block: clamp(52px, 8vw, 104px);
  border-bottom: 1px solid var(--about-hair);
}
.about-chapter:last-of-type {
  border-bottom: 0;
}
.about-chapter__inner {
  display: grid;
  gap: 22px;
}
.about-chapter__rail {
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-left: 2px solid var(--about-hair-gold);
  padding-left: 12px;
}
.about-chapter__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 0.12em;
}
.about-chapter__label {
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--salt);
}
.about-chapter__title {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  font-size: clamp(25px, 3.8vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--fog);
}
.about-chapter__title::before {
  content: "";
  display: block;
  width: 46px;
  height: 2px;
  margin-bottom: 18px;
  background: linear-gradient(90deg, var(--cyan), rgba(36, 224, 208, 0));
  border-radius: 2px;
}

.about-prose {
  color: rgba(243, 247, 246, 0.82);
  font-size: clamp(15px, 1.55vw, 16.5px);
  line-height: 1.86;
}
.about-prose p {
  margin: 0 0 1.05em;
}
.about-prose p:last-child {
  margin-bottom: 0;
}
.about-prose--tight {
  margin-bottom: clamp(18px, 2.4vw, 26px);
}
.about-prose a,
.about-journey__close a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(36, 224, 208, 0.4);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.about-prose a:hover,
.about-prose a:focus-visible,
.about-journey__close a:hover,
.about-journey__close a:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- timeline ---------- */
.about-timeline {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
  position: relative;
}
.about-timeline__node {
  position: relative;
  padding: 18px 18px 18px 22px;
  border-radius: var(--r-md);
  background: var(--ink-700);
  border: 1px solid var(--about-hair);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease), background 0.24s var(--ease);
}
.about-timeline__node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(233, 199, 126, 0.6));
  opacity: 0.5;
  transition: opacity 0.24s var(--ease);
}
.about-timeline__node:hover,
.about-timeline__node:focus-visible {
  outline: none;
  border-color: var(--line-strong);
  background: var(--ink-600);
  transform: translateY(-3px);
}
.about-timeline__node:hover::before,
.about-timeline__node:focus-visible::before {
  opacity: 1;
}
.about-timeline__dot {
  display: none;
}
.about-timeline__year {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
}
.about-timeline__title {
  font-size: 16px;
  color: var(--cyan-soft);
  font-weight: 600;
}
.about-timeline__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--salt);
}

/* ---------- zones ---------- */
.about-zones {
  list-style: none;
  margin: clamp(24px, 3.6vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.about-zones__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--r-sm);
  background: rgba(18, 59, 82, 0.62);
  border: 1px solid var(--about-hair);
  color: rgba(243, 247, 246, 0.9);
  font-size: 14px;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}
.about-zones__item:hover {
  border-color: var(--line-strong);
  background: rgba(36, 224, 208, 0.1);
  color: var(--cyan-soft);
}
.about-zones__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.08em;
}
.about-zones__note {
  margin-top: clamp(18px, 2.6vw, 26px);
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: rgba(233, 199, 126, 0.07);
  border: 1px solid var(--about-hair-gold);
  color: rgba(243, 247, 246, 0.86);
  font-size: 14.5px;
  line-height: 1.78;
}
.about-zones__note p {
  margin: 0;
}

/* ---------- process ---------- */
.about-process {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}
.about-flow {
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 28px);
  padding: 0;
  display: grid;
  gap: 2px;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
}
.about-flow__step {
  display: flex;
  gap: 16px;
  padding: 16px 18px;
  background: var(--ink-800);
  transition: background 0.22s var(--ease);
}
.about-flow__step:hover {
  background: var(--ink-700);
}
.about-flow__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  padding-top: 2px;
  flex: 0 0 auto;
  letter-spacing: 0.08em;
}
.about-flow__title {
  margin: 0 0 5px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--fog);
  letter-spacing: 0.02em;
}
.about-flow__text {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.72;
  color: var(--salt);
}

.about-process__media {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--about-hair-gold);
  background: var(--ink-700);
  box-shadow: 0 28px 70px -44px rgba(3, 16, 25, 0.95);
}
.about-process__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(200deg, rgba(36, 224, 208, 0.14), transparent 46%);
}
.about-process__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 9;
  object-fit: cover;
}
.about-process__caption {
  position: relative;
  display: block;
  padding: 12px 16px 14px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--salt);
  border-top: 1px solid var(--about-hair);
  background: var(--ink-700);
}

/* ---------- team ---------- */
.about-team {
  list-style: none;
  margin: clamp(24px, 3.6vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.about-team__card {
  position: relative;
  padding: 20px 20px 18px;
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(18, 59, 82, 0.9), rgba(11, 33, 53, 0.9));
  border: 1px solid var(--about-hair);
  border-top: 2px solid rgba(233, 199, 126, 0.42);
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease), box-shadow 0.24s var(--ease);
}
.about-team__card:hover,
.about-team__card:focus-visible {
  outline: none;
  border-color: var(--line-strong);
  border-top-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: 0 22px 46px -34px rgba(36, 224, 208, 0.6);
}
.about-team__card .tag {
  display: inline-block;
  margin-bottom: 12px;
}
.about-team__role {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--fog);
  letter-spacing: 0.01em;
}
.about-team__brief {
  margin: 0;
  font-size: 13.6px;
  line-height: 1.7;
  color: var(--salt);
}
.about-team__more {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13.4px;
  line-height: 1.72;
  color: rgba(183, 255, 248, 0.9);
  transition: max-height 0.32s var(--ease), opacity 0.28s var(--ease), margin 0.32s var(--ease);
}
.about-team__card:hover .about-team__more,
.about-team__card:focus-visible .about-team__more,
.about-team__card:focus-within .about-team__more {
  max-height: 200px;
  opacity: 1;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(36, 224, 208, 0.28);
}

/* ---------- service ---------- */
.about-service {
  margin-top: clamp(24px, 3.6vw, 34px);
  display: grid;
  gap: 10px;
}
.about-service__card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 18px 20px;
  border-radius: var(--r-md);
  background: rgba(11, 33, 53, 0.86);
  border: 1px solid var(--about-hair);
  border-left: 2px solid rgba(36, 224, 208, 0.4);
  text-decoration: none;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease), transform 0.22s var(--ease);
}
.about-service__card:hover,
.about-service__card:focus-visible {
  outline: none;
  background: rgba(18, 59, 82, 0.92);
  border-color: var(--line-strong);
  transform: translateX(4px);
}
.about-service__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
}
.about-service__name {
  font-size: 16.5px;
  font-weight: 600;
  color: var(--cyan-soft);
}
.about-service__desc {
  font-size: 13.6px;
  line-height: 1.68;
  color: var(--salt);
}
.about-service__mail {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 13.6px;
  color: var(--salt);
  line-height: 1.8;
}
.about-service__mail-addr {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.02em;
  word-break: break-all;
}

/* ---------- journey ---------- */
.about-journey__media {
  position: relative;
  margin: clamp(24px, 3.6vw, 34px) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--about-hair);
  background: var(--ink-700);
  clip-path: polygon(0 0, 100% 4%, 100% 100%, 0 96%);
}
.about-journey__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.about-journey__caption {
  position: absolute;
  left: 18px;
  bottom: 18px;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-900);
  background: rgba(233, 199, 126, 0.92);
}
.about-journey__close {
  margin-top: clamp(20px, 3vw, 28px);
  padding: 18px 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--about-hair-gold);
  background: rgba(233, 199, 126, 0.06);
  font-size: 14.4px;
  line-height: 1.8;
  color: rgba(243, 247, 246, 0.86);
}
.about-journey__close p {
  margin: 0;
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .about-hero__metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .about-zones {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .about-team {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .about-service {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(40px, 5vw, 76px);
  }
  .about-hero__media {
    margin-top: 26px;
    transform: rotate(-2.4deg);
  }
  .about-chapter__inner {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }
  .about-chapter__rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid var(--about-hair-gold);
    padding-top: 12px;
    position: sticky;
    top: 116px;
  }
  .about-chapter__num {
    font-size: 15px;
  }
  .about-chapter__label {
    writing-mode: vertical-rl;
    letter-spacing: 0.34em;
    font-size: 11px;
    padding-top: 4px;
  }
  .about-timeline {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 10px;
    padding-top: 30px;
  }
  .about-timeline::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 6px;
    right: 6px;
    height: 1px;
    background: linear-gradient(90deg, rgba(36, 224, 208, 0.1), var(--line-strong) 18%, rgba(233, 199, 126, 0.55) 68%, rgba(233, 199, 126, 0.05));
  }
  .about-timeline__node {
    padding: 18px 14px 16px;
    border-top: 0;
  }
  .about-timeline__node::before {
    display: none;
  }
  .about-timeline__dot {
    display: block;
    position: absolute;
    top: -24px;
    left: 14px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--ink-800);
    border: 2px solid var(--cyan);
    box-shadow: 0 0 0 4px rgba(36, 224, 208, 0.14);
    transition: background 0.24s var(--ease), box-shadow 0.24s var(--ease);
  }
  .about-timeline__node:hover .about-timeline__dot,
  .about-timeline__node:focus-visible .about-timeline__dot {
    background: var(--cyan);
    box-shadow: 0 0 0 6px rgba(36, 224, 208, 0.22);
  }
  .about-process {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }
  .about-process__media {
    position: sticky;
    top: 118px;
    transform: rotate(1.4deg);
  }
  .about-team {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .about-zones {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .about-journey__media {
    clip-path: polygon(0 2%, 100% 0, 100% 97%, 0 100%);
  }
}

@media (min-width: 1180px) {
  .about-service {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__media,
  .page-about .about-process__media {
    transform: none;
  }
  .page-about .about-timeline__node,
  .page-about .about-team__card,
  .page-about .about-service__card,
  .page-about .about-index__item,
  .page-about .about-team__more {
    transition: none;
  }
  .page-about .about-timeline__node:hover,
  .page-about .about-team__card:hover,
  .page-about .about-service__card:hover {
    transform: none;
  }
}
<<<END>>>