.page-about {
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-about .about-top {
  padding-top: clamp(14px, 2.6vw, 26px);
}

.page-about .about-hero {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  padding-block: clamp(22px, 4.4vw, 56px) clamp(28px, 5vw, 64px);
}

.page-about .hero-copy h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 7.2vw, 84px);
  line-height: 1.02;
  letter-spacing: -.035em;
  color: var(--white);
}

.page-about .hero-lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 60ch;
  color: var(--mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
}

.page-about .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .hero-stats .stat {
  padding: 12px 12px 10px;
  border-top: 2px solid var(--line);
  background: linear-gradient(180deg, rgba(34, 211, 238, .07), transparent 70%);
  border-radius: 0 0 var(--r-sm) var(--r-sm);
}

.page-about .hero-stats .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
}

.page-about .hero-stats .stat__label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--silver);
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .hero-figure {
  margin: 0;
}

.page-about .hero-figure .figure-frame__media img,
.page-about .method-figure .figure-frame__media img,
.page-about .reach-figure .figure-frame__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-about .about-shell {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
}

.page-about .chapter-rail {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 16px 14px;
}

.page-about .rail-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--sage);
}

.page-about .rail-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .rail-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  color: var(--silver);
  font-size: 14px;
  text-decoration: none;
  transition: color .25s var(--ease), background-color .25s var(--ease), border-color .25s var(--ease);
}

.page-about .rail-link:hover,
.page-about .rail-link:focus-visible {
  color: var(--white);
  background: rgba(34, 211, 238, .09);
  border-left-color: var(--cyan);
}

.page-about .rail-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-about .rail-foot {
  margin: 12px 2px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--silver);
}

.page-about .board-stack {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  min-width: 0;
}

.page-about .about-board {
  position: relative;
  padding: clamp(20px, 3.4vw, 38px);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(34, 211, 238, .07), transparent 60%),
    var(--panel);
  border: 1px solid var(--line);
  min-width: 0;
}

.page-about .board-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 2vw, 20px);
  margin-bottom: clamp(14px, 2vw, 20px);
}

.page-about .board-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(40px, 8vw, 78px);
  font-weight: 700;
  line-height: .82;
  letter-spacing: -.05em;
  color: rgba(34, 211, 238, .18);
  -webkit-text-stroke: 1px rgba(34, 211, 238, .55);
}

.page-about .board-title {
  margin: 0;
  padding-top: 4px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 33px);
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-about .board-body p {
  margin: 0 0 12px;
  color: var(--mist);
  font-size: clamp(15px, 1.4vw, 16px);
  line-height: 1.78;
}

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

.page-about .pos-list {
  display: grid;
  gap: 12px;
  margin-top: clamp(16px, 2.4vw, 24px);
}

.page-about .pos-item {
  padding: 14px 16px 14px 18px;
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: linear-gradient(90deg, rgba(34, 211, 238, .10), rgba(14, 42, 71, 0) 70%);
}

.page-about .pos-item__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-about .pos-item p {
  margin: 0;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.72;
}

.page-about .flow {
  display: grid;
  gap: 18px;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .flow-step {
  position: relative;
  padding: 20px 16px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel-2);
  transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}

.page-about .flow-step:hover,
.page-about .flow-step:focus-within {
  transform: translateY(-3px);
  border-color: rgba(34, 211, 238, .7);
  box-shadow: 0 10px 26px rgba(4, 18, 31, .5);
}

.page-about .flow-node {
  position: absolute;
  top: -7px;
  left: 16px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, .16);
}

.page-about .flow-idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-about .flow-title {
  margin: 4px 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-about .flow-step p {
  margin: 0;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.7;
}

.page-about .flow-arrow {
  display: none;
  position: absolute;
  top: 50%;
  right: -22px;
  transform: translateY(-50%);
  color: var(--cyan);
  opacity: .8;
}

.page-about .flow-step:last-child .flow-arrow {
  display: none;
}

.page-about .method-figure,
.page-about .reach-figure {
  margin: clamp(18px, 3vw, 26px) 0 0;
}

.page-about .team-grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(16px, 2.4vw, 24px);
}

.page-about .team-card {
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel-2);
}

.page-about .team-card__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--cyan);
}

.page-about .team-card p {
  margin: 0 0 10px;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.72;
}

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

.page-about .team-meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--silver) !important;
}

.page-about .team-card--sage {
  border-color: rgba(127, 163, 154, .55);
  background: linear-gradient(135deg, rgba(127, 163, 154, .16), rgba(18, 52, 84, .9) 70%);
}

.page-about .team-card--sage .team-card__title {
  color: var(--sage);
}

.page-about .timeline {
  position: relative;
  display: grid;
  gap: 18px;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(34, 211, 238, .16));
}

.page-about .tl-item {
  position: relative;
  padding-left: 34px;
  outline: none;
}

.page-about .tl-dot {
  position: absolute;
  left: 2px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
}

.page-about .tl-ver {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-about .tl-title {
  margin: 4px 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-about .tl-desc {
  margin: 0;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.7;
}

.page-about .tl-tip {
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  z-index: 6;
  width: max(196px, 100%);
  padding: 10px 12px;
  border: 1px solid rgba(34, 211, 238, .45);
  border-radius: var(--r-sm);
  background: var(--ink-deep);
  color: var(--mist);
  font-size: 12.5px;
  line-height: 1.6;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
  pointer-events: none;
}

.page-about .tl-item:hover .tl-tip,
.page-about .tl-item:focus .tl-tip,
.page-about .tl-item:focus-within .tl-tip {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.page-about .reach-grid {
  display: grid;
  gap: clamp(16px, 3vw, 28px);
  min-width: 0;
}

.page-about .reach-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: clamp(14px, 2.4vw, 22px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .reach-item {
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.page-about .reach-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--cyan);
}

.page-about .reach-label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--silver);
}

.page-about .accordion {
  margin-top: clamp(14px, 2.4vw, 20px);
}

.page-about .promise-panel {
  border-left: 3px solid var(--orange);
  background:
    radial-gradient(110% 80% at 0% 0%, rgba(255, 122, 26, .12), transparent 62%),
    var(--panel);
}

.page-about .promise-contacts {
  display: grid;
  gap: 12px;
  margin-top: clamp(14px, 2.4vw, 20px);
}

.page-about .promise-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(16px, 2.6vw, 24px);
}

@media (min-width: 720px) {
  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 26px;
  }

  .page-about .flow-arrow {
    display: block;
  }

  .page-about .flow-step:nth-child(2n) .flow-arrow {
    display: none;
  }

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

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

  .page-about .promise-contacts .contact-item:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 860px) {
  .page-about .rail-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-about .team-grid {
    grid-template-columns: 1.25fr .85fr;
    grid-template-areas:
      "lead side1"
      "lead side2"
      "help help";
    align-items: stretch;
  }

  .page-about .team-lead { grid-area: lead; }
  .page-about .team-side1 { grid-area: side1; }
  .page-about .team-side2 { grid-area: side2; }
  .page-about .team-help { grid-area: help; }

  .page-about .reach-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-about .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
  }

  .page-about .flow-step:nth-child(2n) .flow-arrow {
    display: block;
  }

  .page-about .flow-step:last-child .flow-arrow {
    display: none;
  }

  .page-about .timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
    padding-top: 34px;
    margin-top: clamp(20px, 3vw, 30px);
  }

  .page-about .timeline::before {
    left: 0;
    right: 0;
    top: 12px;
    bottom: auto;
    width: auto;
    height: 2px;
    background: linear-gradient(90deg, rgba(34, 211, 238, .22), var(--cyan));
  }

  .page-about .tl-item {
    padding-left: 0;
  }

  .page-about .tl-dot {
    left: 0;
    top: -28px;
  }

  .page-about .tl-item:last-child .tl-tip {
    left: auto;
    right: 0;
  }

  .page-about .tl-tip {
    width: max(200px, 100%);
  }
}

@media (min-width: 1024px) {
  .page-about .about-shell {
    grid-template-columns: 218px minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 3vw, 44px);
  }

  .page-about .chapter-rail {
    position: sticky;
    top: 88px;
    padding: 20px 16px;
  }

  .page-about .board-stack > .about-board:nth-child(even) {
    margin-left: clamp(10px, 1.6vw, 24px);
  }
}

.page-about .about-shell:has(#position:target) .rail-link[href="#position"],
.page-about .about-shell:has(#method:target) .rail-link[href="#method"],
.page-about .about-shell:has(#team:target) .rail-link[href="#team"],
.page-about .about-shell:has(#versions:target) .rail-link[href="#versions"],
.page-about .about-shell:has(#reach:target) .rail-link[href="#reach"],
.page-about .about-shell:has(#faq:target) .rail-link[href="#faq"] {
  color: var(--white);
  background: rgba(34, 211, 238, .12);
  border-left-color: var(--cyan);
}

.page-about .about-board:target {
  border-color: rgba(34, 211, 238, .55);
}

@media (prefers-reduced-motion: reduce) {
  .page-about .flow-step,
  .page-about .rail-link,
  .page-about .tl-tip {
    transition: none;
  }

  .page-about .flow-step:hover,
  .page-about .flow-step:focus-within {
    transform: none;
  }
}
<<<END>>>