.page-about {
  background: var(--ink-950);
  color: var(--text);
  overflow-x: hidden;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: calc(var(--header-h) + 40px) 0 clamp(48px, 7vw, 96px);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(53, 230, 212, 0.16), transparent 62%),
    radial-gradient(90% 70% at 4% 12%, rgba(255, 178, 94, 0.08), transparent 66%),
    var(--ink-950);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(169, 184, 204, 0.055) 0 1px,
    transparent 1px 5px
  );
  opacity: 0.55;
  mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: end;
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  margin-bottom: 22px;
  color: var(--fog-300);
}

.page-about .breadcrumb a {
  color: var(--fog-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .breadcrumb a:hover {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-600);
}

.page-about .breadcrumb-sep {
  color: var(--slate-600);
}

.page-about .eyebrow {
  color: var(--cyan-400);
  margin-bottom: 16px;
}

.page-about .about-title {
  margin: 0 0 22px;
  font-size: clamp(38px, 8.4vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 900;
  color: var(--paper-050);
}

.page-about .about-title br {
  display: none;
}

.page-about .about-lead {
  max-width: 40em;
  color: var(--fog-300);
  font-size: clamp(15.5px, 1.8vw, 17.5px);
  line-height: 1.78;
}

.page-about .about-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero-tags .pill {
  font-size: 12.5px;
  white-space: nowrap;
}

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

.page-about .about-hero-frame {
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  background: var(--ink-850);
}

.page-about .about-hero-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: inherit;
}

.page-about .about-figcap {
  margin-top: 12px;
  color: var(--fog-300);
  font-size: 11.5px;
  letter-spacing: 0.08em;
}

/* ---------- Shell ---------- */
.page-about .about-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  padding-bottom: clamp(64px, 9vw, 128px);
}

/* ---------- Rail ---------- */
.page-about .about-rail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(12, 27, 46, 0.72);
}

.page-about .about-rail-title {
  margin: 0;
  color: var(--cyan-400);
  font-size: 11px;
  letter-spacing: 0.14em;
  flex: 0 0 100%;
}

.page-about .about-rail-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-rail-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  color: var(--fog-300);
  font-size: 13.5px;
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-rail-list a .mono {
  color: var(--slate-600);
  font-size: 11px;
  letter-spacing: 0.1em;
  transition: color 0.2s var(--ease);
}

.page-about .about-rail-list a:hover {
  color: var(--paper-050);
  border-bottom-color: var(--cyan-400);
}

.page-about .about-rail-list a:hover .mono {
  color: var(--cyan-400);
}

.page-about .about-rail-note {
  display: none;
  margin: 0;
  color: var(--slate-600);
  font-size: 12px;
}

/* ---------- Body blocks ---------- */
.page-about .about-body {
  display: grid;
  gap: clamp(40px, 6vw, 84px);
  min-width: 0;
}

.page-about .about-block {
  position: relative;
  min-width: 0;
}

.page-about .about-block--light {
  background: var(--paper-050);
  color: var(--ink-900);
  border-radius: var(--radius-l);
  padding: clamp(26px, 4.4vw, 56px);
}

.page-about .about-block--panel {
  background: linear-gradient(160deg, rgba(12, 27, 46, 0.96), rgba(6, 17, 31, 0.82));
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: clamp(26px, 4.4vw, 56px);
}

.page-about .about-block--data {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(30px, 4.6vw, 60px) 0;
}

.page-about .about-block--promise {
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(53, 230, 212, 0.12), transparent 62%),
    linear-gradient(150deg, var(--ink-850), var(--ink-950));
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: clamp(28px, 4.6vw, 60px);
}

.page-about .about-num {
  display: inline-block;
  margin: 0 0 14px;
  color: var(--cyan-400);
  font-size: clamp(24px, 3.6vw, 38px);
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1;
}

.page-about .about-block--light .about-num {
  color: var(--cyan-600);
}

.page-about .about-h2 {
  margin: 0 0 20px;
  font-size: clamp(26px, 4.2vw, 42px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--paper-050);
}

.page-about .about-block--light .about-h2 {
  color: var(--ink-900);
}

.page-about .about-h3 {
  margin: 0 0 8px;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper-050);
}

.page-about .about-block--light .about-h3 {
  color: var(--ink-900);
}

.page-about .about-p {
  margin: 0 0 18px;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--fog-300);
}

.page-about .about-block--light .about-p {
  color: var(--slate-600);
}

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

.page-about .about-next {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--fog-300);
}

.page-about .about-next a,
.page-about .about-details a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-600);
}

.page-about .about-next a:hover,
.page-about .about-details a:hover {
  color: var(--paper-050);
}

.page-about .about-block--light .about-next {
  color: var(--slate-600);
}

.page-about .about-block--light .about-next a {
  color: var(--cyan-600);
  border-bottom-color: var(--cyan-600);
}

/* ---------- Quote ---------- */
.page-about .about-quote {
  margin: 28px 0 0;
  padding: 22px 24px;
  border-left: 4px solid var(--cyan-600);
  border-radius: 8px var(--radius-m) var(--radius-m) 8px;
  background: var(--mint-100);
}

.page-about .about-quote p {
  margin: 0;
  font-size: clamp(16px, 2.2vw, 20px);
  line-height: 1.62;
  font-weight: 500;
  color: var(--ink-900);
}

/* ---------- Audience ---------- */
.page-about .about-audience {
  display: grid;
  gap: 0;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: aud;
}

.page-about .about-audience li {
  position: relative;
  padding: 20px 0 20px 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-audience li:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-audience li p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog-300);
  max-width: 42em;
}

/* ---------- Method ---------- */
.page-about .about-method-grid {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-about .about-method {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(6, 17, 31, 0.55);
}

.page-about .about-method p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog-300);
}

.page-about .about-details {
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

.page-about .about-details summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--cyan-400);
  transition: color 0.2s var(--ease);
}

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

.page-about .about-details summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  width: 16px;
  text-align: center;
}

.page-about .about-details[open] summary::before {
  content: "−";
}

.page-about .about-details summary:hover {
  color: var(--paper-050);
}

.page-about .about-details p {
  margin: 10px 0 2px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--fog-300);
}

/* ---------- Figure ---------- */
.page-about .about-figure {
  margin: 32px 0 0;
}

.page-about .about-figure .img-frame {
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  background: var(--ink-850);
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: inherit;
}

/* ---------- Stages ---------- */
.page-about .about-stages {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-stage {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(140deg, rgba(12, 27, 46, 0.9), rgba(6, 17, 31, 0.6));
}

.page-about .about-stage-num {
  color: var(--cyan-400);
  font-size: clamp(26px, 4vw, 34px);
  line-height: 1;
  letter-spacing: 0.04em;
  opacity: 0.9;
}

.page-about .about-stage p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--fog-300);
}

/* ---------- Stats ---------- */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 28px 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  overflow: hidden;
}

.page-about .about-stat {
  padding: 20px 18px;
  background: var(--ink-850);
}

.page-about .about-stat dt {
  font-size: 12.5px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--fog-300);
}

.page-about .about-stat dd {
  margin: 10px 0 0;
  font-size: 14px;
  color: var(--text-dim);
}

.page-about .about-stat-num {
  font-size: clamp(28px, 4.6vw, 40px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--cyan-400);
}

/* ---------- Promise CTA ---------- */
.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-cta .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.page-about .about-block--promise .about-cta .btn--ghost:hover {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
}

/* ---------- Tablet / Desktop ---------- */
@media (min-width: 720px) {
  .page-about .about-title br {
    display: inline;
  }

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

  .page-about .about-method:first-child {
    grid-column: 1 / -1;
  }

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

@media (min-width: 1024px) {
  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-about .about-hero {
    padding-top: calc(var(--header-h) + 72px);
  }

  .page-about .about-shell {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: clamp(36px, 4.5vw, 72px);
    padding-top: clamp(48px, 5vw, 80px);
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    display: block;
    align-self: start;
    padding: 24px 20px;
    background: transparent;
    border: none;
    border-left: 1px solid var(--line);
    border-radius: 0;
  }

  .page-about .about-rail-title {
    display: block;
    margin-bottom: 18px;
  }

  .page-about .about-rail-list {
    display: grid;
    gap: 12px;
  }

  .page-about .about-rail-list a {
    font-size: 14px;
    line-height: 1.4;
  }

  .page-about .about-rail-note {
    display: block;
    margin-top: 28px;
    writing-mode: vertical-rl;
    letter-spacing: 0.28em;
    font-size: 11.5px;
    color: var(--slate-600);
    min-height: 120px;
  }

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

  .page-about .about-method:first-child {
    grid-column: auto;
  }

  .page-about .about-stage:nth-child(even) {
    margin-left: clamp(0px, 2.4vw, 32px);
  }

  .page-about .about-stage {
    padding: 24px 26px;
  }

  .page-about .about-figure {
    margin-top: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-rail-list a,
  .page-about .breadcrumb a,
  .page-about .about-details summary {
    transition: none;
  }
}
<<<END>>>