.page-about {
  --about-rail: 176px;
  --about-gap: clamp(1.75rem, 4vw, 3.5rem);
  overflow-x: clip;
  background:
    radial-gradient(1000px 520px at 84% -6%, rgba(47, 227, 210, .10), transparent 70%),
    radial-gradient(760px 420px at 6% 18%, rgba(255, 107, 74, .06), transparent 72%),
    var(--abyss);
  color: var(--sand);
}

.page-about .bx-breadcrumb {
  display: flex;
  gap: .5rem;
  align-items: center;
  font-size: .8rem;
  color: var(--ink-55);
  margin-bottom: 1.25rem;
}

.page-about .bx-breadcrumb a {
  color: var(--ink-55);
  text-decoration: none;
}

.page-about .bx-breadcrumb a:hover {
  color: var(--cyan);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  padding: clamp(1.75rem, 5vw, 3.5rem) 0 clamp(2.5rem, 6vw, 4rem);
}

.page-about .about-hero__title {
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  margin: 0 0 1.1rem;
  max-width: 20ch;
}

.page-about .about-hero__lead {
  max-width: 62ch;
  font-size: clamp(.98rem, 1.2vw, 1.06rem);
  line-height: 1.8;
  color: var(--ink-70);
  margin: 0;
}

.page-about .about-hero__media {
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  position: relative;
}

.page-about .about-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  border: var(--line);
  pointer-events: none;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, var(--mid), var(--abyss));
}

.page-about .about-facts {
  list-style: none;
  margin: -2.2rem auto 0;
  padding: 0;
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  max-width: 940px;
  background: var(--cyan-18);
  border: var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-float);
}

.page-about .about-fact {
  background: var(--deep);
  padding: .95rem 1rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.page-about .about-fact__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -.01em;
}

.page-about .about-fact__label {
  font-size: .78rem;
  color: var(--ink-55);
  line-height: 1.45;
}

/* ---------- Shell + rail ---------- */
.page-about .about-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
}

.page-about .about-rail__label {
  font-family: var(--font-serif);
  font-size: .74rem;
  letter-spacing: .18em;
  color: var(--muted);
  margin: 0 0 .6rem;
}

.page-about .about-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: .4rem;
  overflow-x: auto;
  padding-bottom: .5rem;
  scrollbar-width: thin;
}

.page-about .about-rail__list li {
  flex: 0 0 auto;
}

.page-about .about-rail__list a {
  display: flex;
  align-items: baseline;
  gap: .4rem;
  padding: .35rem .75rem;
  border: var(--line);
  border-radius: var(--r-pill);
  font-size: .8rem;
  color: var(--ink-70);
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-about .about-rail__list a:hover,
.page-about .about-rail__list a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan-32);
  background: var(--cyan-06);
}

.page-about .about-rail__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .72rem;
  color: var(--cyan);
}

/* ---------- Sections ---------- */
.page-about .about-body {
  display: grid;
  gap: clamp(1.25rem, 3.5vw, 2rem);
  min-width: 0;
}

.page-about .about-sec {
  min-width: 0;
  padding: clamp(1.35rem, 3.5vw, 2.5rem) 0;
}

.page-about .about-sec__head {
  display: flex;
  gap: .9rem;
  align-items: flex-start;
  margin-bottom: 1.1rem;
}

.page-about .about-sec__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .82rem;
  color: var(--cyan);
  padding-top: .45rem;
  border-top: 1px solid var(--cyan-32);
  flex: 0 0 auto;
}

.page-about .about-sec__eyebrow {
  font-family: var(--font-serif);
  font-size: .74rem;
  letter-spacing: .18em;
  color: var(--muted);
  margin: 0 0 .4rem;
}

.page-about .about-sec__title {
  font-size: clamp(1.4rem, 3.4vw, 2.15rem);
  line-height: 1.28;
  letter-spacing: -.015em;
  margin: 0;
  color: var(--sand);
}

.page-about .about-p {
  max-width: 42em;
  line-height: 1.78;
  color: var(--ink-70);
  margin: 0 0 1rem;
}

.page-about .about-p a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-32);
}

.page-about .about-p a:hover {
  border-bottom-color: var(--cyan);
}

.page-about .about-p--tight {
  margin-top: 1.1rem;
  margin-bottom: 0;
}

.page-about .about-p--tail {
  margin: 1.25rem 0 0;
  font-size: .92rem;
}

/* ---------- Light band ---------- */
.page-about .about-sec--light {
  background: var(--sand);
  border-radius: var(--r-lg);
  padding: clamp(1.35rem, 3.5vw, 2.5rem);
  color: var(--ink);
  box-shadow: var(--shadow-soft);
}

.page-about .about-sec--light .about-sec__title {
  color: var(--ink);
}

.page-about .about-sec--light .about-sec__eyebrow {
  color: #5B7484;
}

.page-about .about-sec--light .about-sec__no {
  color: #0F8E84;
  border-top-color: rgba(12, 34, 51, .28);
}

.page-about .about-sec--light .about-p {
  color: #3C586B;
}

.page-about .about-sec--light .about-p a {
  color: #0B6E67;
  border-bottom-color: rgba(11, 110, 103, .35);
}

/* ---------- Path rows ---------- */
.page-about .about-path {
  display: grid;
  gap: 1px;
  margin-top: 1.35rem;
  background: var(--cyan-18);
  border: var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-path__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: .5rem;
  padding: 1rem 1.1rem;
  background: rgba(10, 34, 51, .92);
}

.page-about .about-path__k {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--cyan);
  letter-spacing: .08em;
}

.page-about .about-path__title {
  font-size: 1rem;
  margin: 0 0 .3rem;
  color: var(--sand);
}

.page-about .about-path__desc {
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--ink-55);
}

/* ---------- Pipeline ---------- */
.page-about .about-pipe {
  list-style: none;
  margin: 1.35rem 0 0;
  padding: 0;
  display: grid;
  gap: .7rem;
  counter-reset: pipe;
}

.page-about .about-pipe__item {
  position: relative;
  background: #fff;
  border: 1px solid rgba(12, 34, 51, .12);
  border-radius: var(--r-md);
  padding: 1rem .95rem .85rem;
  transition: border-color .22s ease, transform .22s ease, box-shadow .22s ease;
}

.page-about .about-pipe__item:hover,
.page-about .about-pipe__item:focus-within,
.page-about .about-pipe__item:focus {
  border-color: rgba(15, 142, 132, .5);
  box-shadow: 0 10px 26px rgba(6, 30, 44, .10);
  transform: translateY(-2px);
  outline: none;
}

.page-about .about-pipe__bar {
  display: block;
  height: 3px;
  width: 100%;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, #0F8E84, rgba(47, 227, 210, .25));
  margin-bottom: .7rem;
}

.page-about .about-pipe__step {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: #7D94A3;
}

.page-about .about-pipe__name {
  font-size: .98rem;
  margin: .25rem 0 .45rem;
  color: var(--ink);
}

.page-about .about-pipe__time {
  display: inline-block;
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .72rem;
  color: #0B6B65;
  background: rgba(47, 227, 210, .18);
  border-radius: var(--r-pill);
  padding: .15rem .55rem;
}

.page-about .about-pipe__extra {
  max-height: none;
  opacity: 1;
  margin: .55rem 0 0;
  font-size: .82rem;
  line-height: 1.68;
  color: #4A6577;
  overflow: hidden;
}

/* ---------- Figures ---------- */
.page-about .about-figure {
  margin: 1.4rem 0 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-md);
  border: 1px solid rgba(12, 34, 51, .12);
  background: linear-gradient(160deg, rgba(47, 227, 210, .12), rgba(12, 34, 51, .06));
}

.page-about .about-sec--dark .about-figure img,
.page-about .about-figure--wide img {
  border-color: var(--cyan-18);
  background: linear-gradient(160deg, var(--mid), var(--deep));
}

.page-about .about-figure__cap {
  margin-top: .55rem;
  font-size: .76rem;
  color: #6C8595;
  letter-spacing: .02em;
}

/* ---------- Daily counters ---------- */
.page-about .about-daily {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: grid;
  gap: .6rem;
  grid-template-columns: 1fr;
}

.page-about .about-daily li {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  padding: .7rem .9rem;
  border-left: 2px solid rgba(47, 227, 210, .55);
  background: rgba(12, 34, 51, .04);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.page-about .about-daily__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.3rem;
  font-weight: 700;
  color: #0B6B65;
  min-width: 4.2em;
}

.page-about .about-daily__label {
  font-size: .82rem;
  color: #3C586B;
}

/* ---------- Data panel ---------- */
.page-about .about-panel {
  margin-top: 1.2rem;
  background: var(--deep);
  border: var(--line);
  border-radius: var(--r-md);
  padding: clamp(1rem, 3vw, 1.7rem);
  box-shadow: var(--shadow-soft);
}

.page-about .about-panel__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-about .about-panel__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: .2rem;
}

.page-about .about-panel__label {
  display: block;
  font-size: .82rem;
  line-height: 1.55;
  color: var(--ink-55);
}

/* ---------- Team ---------- */
.page-about .about-team {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.35rem;
}

.page-about .about-team__cell {
  flex: 1 1 100%;
  min-width: 0;
  border: var(--line);
  border-radius: var(--r-md);
  padding: 1.1rem 1rem;
}

.page-about .about-team__cell--edit {
  flex-grow: 54;
  background: rgba(18, 58, 82, .92);
}

.page-about .about-team__cell--data {
  flex-grow: 28;
  background: rgba(18, 58, 82, .62);
}

.page-about .about-team__cell--ops {
  flex-grow: 14;
  background: rgba(18, 58, 82, .38);
}

.page-about .about-team__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.page-about .about-team__role {
  font-size: .98rem;
  margin: .5rem 0 .45rem;
  color: var(--sand);
}

.page-about .about-team__desc {
  margin: 0;
  font-size: .84rem;
  line-height: 1.68;
  color: var(--ink-55);
}

/* ---------- Versions ---------- */
.page-about .about-sec--versions {
  background:
    linear-gradient(180deg, rgba(47, 227, 210, .06), transparent 42%),
    rgba(10, 34, 51, .55);
  border: var(--line);
  border-radius: var(--r-lg);
  padding: clamp(1.35rem, 3.5vw, 2.5rem);
}

.page-about .about-tl {
  margin-top: 1.6rem;
}

.page-about .about-tl__track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-about .about-tl__node {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  column-gap: .8rem;
  padding-bottom: 1.05rem;
  position: relative;
}

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

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

.page-about .about-tl__dot {
  grid-column: 1;
  grid-row: 1;
  width: 11px;
  height: 11px;
  margin-top: .42rem;
  border-radius: 50%;
  background: var(--abyss);
  border: 2px solid var(--cyan);
  justify-self: start;
  position: relative;
  z-index: 1;
}

.page-about .about-tl__node:not(:last-child) .about-tl__dot::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  width: 1px;
  height: 3.1rem;
  transform: translateX(-50%);
  background: linear-gradient(180deg, var(--cyan-32), transparent);
}

.page-about .about-tl__card {
  grid-column: 2;
  grid-row: 1;
  border: var(--line);
  border-radius: var(--r-sm);
  padding: .7rem .8rem;
  background: rgba(18, 58, 82, .5);
}

.page-about .about-tl__ver {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .92rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: .25rem;
}

.page-about .about-tl__desc {
  margin: 0;
  font-size: .82rem;
  line-height: 1.62;
  color: var(--ink-55);
}

.page-about .about-versions__notes {
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: var(--line);
  display: grid;
  gap: .8rem;
}

.page-about .about-versions__notes p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.78;
  color: var(--ink-70);
  max-width: 46em;
}

/* ---------- Cases ---------- */
.page-about .about-cases {
  margin-top: 1.35rem;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(250px, 84%);
  gap: .7rem;
  overflow-x: auto;
  padding-bottom: .7rem;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.page-about .about-case {
  scroll-snap-align: start;
  background: #fff;
  border: 1px solid rgba(12, 34, 51, .12);
  border-radius: var(--r-md);
  padding: 1rem .95rem;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.page-about .about-case__tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: #0B6B65;
  background: rgba(47, 227, 210, .2);
  border-radius: var(--r-pill);
  padding: .15rem .55rem;
}

.page-about .about-case__title {
  font-size: .95rem;
  line-height: 1.5;
  margin: 0;
  color: var(--ink);
}

.page-about .about-case__desc {
  margin: 0;
  font-size: .82rem;
  line-height: 1.68;
  color: #4A6577;
}

/* ---------- Connect ---------- */
.page-about .about-sec--connect {
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-about .about-connect {
  display: grid;
  gap: 1.2rem;
  align-items: start;
}

.page-about .about-connect__title {
  font-size: clamp(1.4rem, 3.4vw, 2.05rem);
  line-height: 1.3;
  margin: .3rem 0 1rem;
  letter-spacing: -.015em;
  color: var(--sand);
}

.page-about .about-connect__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.2rem;
}

.page-about .about-connect__card {
  background: rgba(18, 58, 82, .58);
  border: var(--line);
  border-radius: var(--r-md);
  padding: clamp(1rem, 3vw, 1.5rem);
  box-shadow: var(--shadow-soft);
}

.page-about .about-connect__card-title {
  font-size: .95rem;
  margin: 0 0 .9rem;
  color: var(--sand);
  letter-spacing: .01em;
}

.page-about .about-connect__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-about .about-connect__list li {
  display: grid;
  gap: .15rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid var(--cyan-10);
}

.page-about .about-connect__list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-about .about-connect__k {
  font-family: var(--font-serif);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-about .about-connect__v {
  font-size: .92rem;
  color: var(--sand);
  word-break: break-word;
}

.page-about .about-connect__note {
  margin: 1rem 0 0;
  font-size: .8rem;
  line-height: 1.72;
  color: var(--ink-55);
}

/* ---------- Tablet ---------- */
@media (min-width: 640px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-path__row {
    grid-template-columns: 5rem minmax(0, 1fr);
    gap: 1rem;
    padding: 1.1rem 1.25rem;
  }

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

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

  .page-about .about-cases {
    grid-auto-columns: minmax(240px, 42%);
  }
}

/* ---------- Desktop ---------- */
@media (min-width: 920px) {
  .page-about .about-shell {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: var(--about-gap);
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }

  .page-about .about-rail__list {
    display: grid;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--cyan-18);
  }

  .page-about .about-rail__list a {
    border: none;
    border-radius: 0;
    padding: .42rem 0 .42rem .85rem;
    margin-left: -1px;
    border-left: 1px solid transparent;
    font-size: .82rem;
    white-space: normal;
    background: none;
  }

  .page-about .about-rail__list a:hover,
  .page-about .about-rail__list a:focus-visible {
    border-left-color: var(--cyan);
    color: var(--cyan);
    background: none;
  }

  .page-about .about-pipe {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: .55rem;
  }

  .page-about .about-pipe__extra {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    transition: max-height .3s ease, opacity .3s ease, margin-top .3s ease;
  }

  .page-about .about-pipe__item:hover .about-pipe__extra,
  .page-about .about-pipe__item:focus .about-pipe__extra,
  .page-about .about-pipe__item:focus-within .about-pipe__extra {
    max-height: 200px;
    opacity: 1;
    margin-top: .55rem;
  }

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

  .page-about .about-team {
    flex-wrap: nowrap;
  }

  .page-about .about-team__cell {
    flex-basis: 0;
    min-width: 0;
  }

  .page-about .about-tl__track {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: .5rem;
  }

  .page-about .about-tl__node {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) auto minmax(0, 1fr);
    justify-items: center;
    column-gap: 0;
    padding-bottom: 0;
  }

  .page-about .about-tl__node:not(:last-child) .about-tl__dot::after {
    display: none;
  }

  .page-about .about-tl__rail {
    display: block;
    grid-column: 1;
    grid-row: 2;
    width: 100%;
    height: 1px;
    align-self: center;
    background: linear-gradient(90deg, transparent, var(--cyan-32) 18%, var(--cyan-32) 82%, transparent);
  }

  .page-about .about-tl__dot {
    grid-column: 1;
    grid-row: 2;
    align-self: center;
    justify-self: center;
    margin-top: 0;
  }

  .page-about .about-tl__card {
    grid-column: 1;
    width: 100%;
    text-align: center;
  }

  .page-about .about-tl__node:nth-child(odd) .about-tl__card {
    grid-row: 1;
    align-self: end;
    margin-bottom: .9rem;
  }

  .page-about .about-tl__node:nth-child(even) .about-tl__card {
    grid-row: 3;
    align-self: start;
    margin-top: .9rem;
  }

  .page-about .about-cases {
    grid-auto-flow: row;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-connect {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-pipe__item,
  .page-about .about-pipe__extra {
    transition: none;
  }
}
<<<END>>>