.page-about {
  --about-rule: rgba(243, 239, 228, 0.16);
  --about-soft: rgba(243, 239, 228, 0.78);
  --about-cut: 26px;
  background: var(--ink);
  color: var(--rice);
  font-family: var(--ff-body);
  padding-bottom: 64px;
  overflow-x: hidden;
}

.page-about .breadcrumb {
  padding-top: 22px;
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rock);
}

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

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

.page-about .breadcrumb span[aria-hidden="true"] {
  margin: 0 8px;
  color: var(--clay);
}

/* ---------- hero ---------- */
.about-hero {
  position: relative;
  padding: 26px 0 52px;
  background:
    radial-gradient(circle at 86% 8%, rgba(201, 255, 79, 0.12), transparent 58%),
    repeating-linear-gradient(116deg, rgba(243, 239, 228, 0.045) 0 1px, transparent 1px 58px);
}

.about-hero__grid {
  display: grid;
  gap: 34px;
}

.page-about .about-hero h1 {
  font-family: var(--ff-display);
  font-size: clamp(34px, 7.2vw, 62px);
  line-height: 1.16;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
}

.about-hero__lead {
  margin: 22px 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--clay);
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--about-soft);
  max-width: 34em;
}

.about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.about-meta {
  padding: 10px 16px 12px;
  background: var(--moss);
  border-left: 2px solid var(--lime);
}

.about-meta__k {
  display: block;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--rock);
}

.about-meta__v {
  display: block;
  margin-top: 4px;
  font-family: var(--ff-data);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.about-hero__media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  margin: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

.about-hero__media .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
}

/* ---------- .page-about grid ---------- */
.about-body {
  padding-top: 10px;
}

.about-toc {
  display: none;
}

.about-toc__title {
  margin: 0 0 14px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--rock);
}

.about-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.about-toc a {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  font-family: var(--ff-mono);
  font-size: 12.5px;
  color: rgba(243, 239, 228, 0.7);
  text-decoration: none;
  border-bottom: 1px solid rgba(243, 239, 228, 0.08);
}

.about-toc a:hover,
.about-toc a:focus-visible {
  color: var(--lime);
}

.about-toc__no {
  color: var(--clay);
}

/* ---------- sections ---------- */
.about-section {
  padding: 44px 0 50px;
  border-top: 1px solid var(--about-rule);
}

.about-section:first-child {
  border-top: 0;
  padding-top: 18px;
}

.about-chapter {
  font-family: var(--ff-display);
  font-size: clamp(42px, 9vw, 74px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: rgba(201, 255, 79, 0.24);
  margin: 0;
}

.page-about .about-section h2 {
  font-family: var(--ff-display);
  font-size: clamp(26px, 4.6vw, 38px);
  line-height: 1.28;
  margin: 8px 0 0;
  font-weight: 700;
}

.page-about .about-section p {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--about-soft);
  max-width: 38em;
}

.page-about .about-section .about-lead {
  font-size: 17.5px;
  color: rgba(243, 239, 228, 0.92);
}

/* ---------- timeline ---------- */
.about-timeline {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
}

.about-stage {
  position: relative;
  padding: 22px 0 22px 22px;
  border-left: 1px solid var(--about-rule);
}

.about-stage::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 30px;
  width: 8px;
  height: 8px;
  background: var(--lime);
}

.about-stage__year {
  display: block;
  font-family: var(--ff-data);
  font-size: 23px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--lime);
}

.about-stage h3 {
  font-family: var(--ff-body);
  font-size: 17.5px;
  font-weight: 600;
  margin: 8px 0 0;
  color: var(--rice);
}

.about-stage p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(243, 239, 228, 0.72);
}

/* ---------- team ---------- */
.about-team {
  display: grid;
  gap: 28px;
  margin-top: 28px;
  justify-items: start;
}

.about-ring {
  position: relative;
  width: 186px;
  height: 186px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(var(--lime) 0 66.7%, var(--amber) 66.7% 88.1%, var(--clay) 88.1% 100%);
}

.about-ring::after {
  content: "";
  position: absolute;
  inset: 24px;
  border-radius: 50%;
  background: var(--ink);
}

.about-ring__label {
  position: relative;
  z-index: 1;
  text-align: center;
}

.about-ring__num {
  display: block;
  font-family: var(--ff-data);
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
}

.about-ring__cap {
  display: block;
  margin-top: 6px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--rock);
}

.about-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  width: 100%;
}

.about-role {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px;
  background: var(--moss);
  border-left: 3px solid var(--lime);
}

.about-role--b {
  border-left-color: var(--amber);
}

.about-role--c {
  border-left-color: var(--clay);
}

.about-role__n {
  font-family: var(--ff-data);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
}

.page-about .about-role__t {
  margin: 0;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--rice);
}

.page-about .about-role__d {
  margin: 5px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(243, 239, 228, 0.72);
}

/* ---------- media ---------- */
.about-media {
  margin: 30px 0 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

.about-media .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.85);
}

.about-media--tall .media-frame__img {
  aspect-ratio: 4 / 3;
}

/* ---------- ecosystem ---------- */
.about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-rule);
  border: 1px solid var(--about-rule);
  margin-top: 28px;
}

.about-stat {
  background: var(--ink);
  padding: 20px 16px 18px;
}

.about-stat__n {
  display: block;
  font-family: var(--ff-data);
  font-size: clamp(30px, 5.6vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--rice);
}

.about-stat__k {
  display: block;
  margin-top: 8px;
  font-family: var(--ff-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--rock);
}

.about-eco {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}

.about-eco__group {
  border-top: 2px solid var(--clay);
  padding-top: 14px;
}

.about-eco__title {
  margin: 0 0 14px;
  font-family: var(--ff-data);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--amber);
}

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

.about-chip {
  font-family: var(--ff-mono);
  font-size: 12px;
  padding: 6px 10px;
  background: rgba(220, 232, 216, 0.07);
  border: 1px solid rgba(220, 232, 216, 0.18);
  color: var(--mint);
}

/* ---------- season ---------- */
.about-season {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.about-card {
  background: var(--moss);
  padding: 20px 18px 24px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.about-card__no {
  margin: 0;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.about-card h3 {
  margin: 10px 0 0;
  font-family: var(--ff-body);
  font-size: 17px;
  font-weight: 600;
  color: var(--rice);
}

.page-about .about-card p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(243, 239, 228, 0.74);
}

/* ---------- next ---------- */
.about-next {
  margin-top: 26px;
  padding: 28px 20px 26px;
  background: linear-gradient(140deg, var(--moss), var(--pitch));
  border-left: 3px solid var(--lime);
}

.page-about .about-next > p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(243, 239, 228, 0.88);
}

.about-links {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.about-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: rgba(243, 239, 228, 0.05);
  border: 1px solid var(--about-rule);
  color: var(--rice);
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.about-link:hover,
.about-link:focus-visible {
  border-color: var(--lime);
  background: rgba(201, 255, 79, 0.08);
}

.about-link__t {
  display: block;
  font-size: 15.5px;
  font-weight: 600;
}

.about-link__d {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--rock);
}

.about-link__arrow {
  font-family: var(--ff-mono);
  color: var(--lime);
  flex: none;
}

.page-about .about-next .about-next__foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(243, 239, 228, 0.72);
}

.page-about .about-next__foot a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- reveal ---------- */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- responsive ---------- */
@media (min-width: 720px) {
  .about-season {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .about-next {
    padding: 34px 30px 30px;
  }
}

@media (min-width: 820px) {
  .about-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--about-rule);
  }

  .about-stage {
    border-left: 1px solid var(--about-rule);
    padding: 28px 22px 6px;
  }

  .about-stage:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .about-stage::before {
    left: 22px;
    top: -5px;
  }

  .about-stage:first-child::before {
    left: 0;
  }

  .about-team {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: start;
    gap: 36px;
  }

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

@media (min-width: 900px) {
  .about-body {
    display: grid;
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .about-toc {
    display: block;
    position: sticky;
    top: calc(var(--strip-h) + 24px);
  }

  .about-section {
    padding: 52px 0 58px;
  }
}

@media (min-width: 960px) {
  .about-hero {
    padding: 34px 0 64px;
  }

  .about-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: end;
    gap: 56px;
  }

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

@media (min-width: 1080px) {
  .about-season {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .about-stats {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal],
  .page-about [data-reveal].is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .about-link {
    transition: none;
  }
}
<<<END>>>