.page-about {
  --about-serif: Georgia, "Times New Roman", "Songti SC", "Noto Serif SC", serif;
}

.page-about img {
  max-width: 100%;
}

.page-about section[id],
.page-about article[id] {
  scroll-margin-top: 118px;
}

/* ===== HERO ===== */
.page-about .about-hero {
  position: relative;
  padding: clamp(1.5rem, 4vw, 3rem) 0 clamp(2.5rem, 6vw, 4rem);
  overflow: clip;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(44, 62, 80, 0.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44, 62, 80, 0.28) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 60% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(ellipse 90% 70% at 60% 0%, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-about .about-hero .container {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumbs {
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.page-about .about-hero .breadcrumbs .breadcrumbs__item[aria-current="page"] {
  color: var(--color-secondary);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 2rem;
}

.page-about .about-hero__content {
  max-width: 62ch;
}

.page-about .about-hero__content .eyebrow {
  margin-bottom: 1rem;
}

.page-about .about-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 6.4vw, 4.9rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

.page-about .about-hero__lead {
  font-size: clamp(1.15rem, 2.4vw, 1.7rem);
  font-weight: 600;
  color: var(--color-secondary);
  margin: 0 0 1.1rem;
}

.page-about .about-hero__text {
  color: var(--color-text-dim);
  line-height: 1.8;
  margin: 0;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 2rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-line);
}

.page-about .about-hero__stat {
  display: flex;
  flex-direction: column-reverse;
  gap: 0.3rem;
  min-width: 0;
}

.page-about .about-hero__stat dt,
.page-about .about-hero__stat dd {
  margin: 0;
}

.page-about .about-hero__stat dt {
  color: var(--color-text-dim);
  font-size: 0.82rem;
  white-space: nowrap;
}

.page-about .about-hero__stat dd {
  font-family: var(--font-data);
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}

@supports (-webkit-background-clip: text) {
  .page-about .about-hero__stat dd {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

.page-about .about-hero__media {
  margin: 0;
  position: relative;
}

.page-about .about-hero__media .img-frame {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(54, 241, 165, 0.28);
  box-shadow: 0 30px 90px -30px rgba(10, 102, 255, 0.55);
  background: radial-gradient(ellipse at 70% 20%, rgba(10, 102, 255, 0.35), transparent 65%), var(--color-surface);
}

.page-about .about-hero__media .img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .about-hero__media figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.7rem;
  color: var(--color-text-dim);
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

/* ===== CHAPTER INDEX ===== */
.page-about .about-hero__chapters {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: clamp(2rem, 5vw, 3rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__chapters .chapter-index__item {
  display: grid;
  gap: 0.15rem;
  min-width: 0;
  background: rgba(30, 33, 41, 0.72);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
  text-decoration: none;
  color: var(--color-text);
  transition: border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

.page-about .about-hero__chapters .chapter-index__item:hover,
.page-about .about-hero__chapters .chapter-index__item:focus-visible {
  border-color: rgba(54, 241, 165, 0.6);
  transform: translateY(-2px);
}

.page-about .about-hero__chapters .chapter-index__num {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--color-primary);
  letter-spacing: 0.08em;
}

.page-about .about-hero__chapters .chapter-index__name {
  font-weight: 800;
  font-size: 0.95rem;
}

.page-about .about-hero__chapters .chapter-index__desc {
  color: var(--color-text-dim);
  font-size: 0.8rem;
  line-height: 1.5;
}

/* ===== SECTION HEADER ===== */
.page-about .about-section__header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: clamp(2rem, 5vw, 3.25rem);
}

.page-about .about-sec-num {
  font-family: var(--about-serif);
  font-size: clamp(3.6rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(10, 102, 255, 0.9);
  text-stroke: 1.5px rgba(10, 102, 255, 0.9);
}

.page-about .about-section__title .eyebrow {
  margin: 0 0 0.6rem;
}

.page-about .about-section__title h2 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-about .about-section__desc {
  margin: 0;
  color: var(--color-text-dim);
  line-height: 1.8;
  max-width: 64ch;
}

/* ===== MANIFESTO ===== */
.page-about .about-manifesto {
  position: relative;
  padding: clamp(4rem, 9vw, 7rem) 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background-image:
    linear-gradient(rgba(44, 62, 80, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44, 62, 80, 0.22) 1px, transparent 1px);
  background-size: 56px 56px;
}

.page-about .about-manifesto__inner {
  display: grid;
  gap: 2rem;
}

.page-about .about-manifesto__body .eyebrow {
  margin: 0 0 0.8rem;
}

.page-about .about-manifesto__body h2 {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 3.8vw, 2.8rem);
  font-weight: 900;
  line-height: 1.18;
  margin: 0 0 1.4rem;
}

.page-about .about-manifesto__body p {
  color: var(--color-text-dim);
  line-height: 1.85;
  margin: 0 0 1rem;
  max-width: 64ch;
}

.page-about .about-manifesto__body strong {
  color: var(--color-text);
  font-weight: 700;
}

.page-about .about-manifesto__statement {
  border-left: 4px solid var(--color-secondary);
  padding: 0.2rem 0 0.2rem 1.25rem;
  font-size: clamp(1.2rem, 2.4vw, 1.6rem);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.5;
  margin: 1.75rem 0 0;
}

/* ===== PRINCIPLES ===== */
.page-about .about-principles {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.page-about .about-principles li {
  display: grid;
  gap: 0.3rem;
  background: rgba(30, 33, 41, 0.78);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  transition: border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

.page-about .about-principles li:hover {
  border-color: rgba(10, 102, 255, 0.55);
  transform: translateY(-2px);
}

.page-about .about-principles__num {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--color-primary);
  letter-spacing: 0.08em;
}

.page-about .about-principles strong {
  font-size: 1.02rem;
  font-weight: 800;
}

.page-about .about-principles li > span:last-child {
  color: var(--color-text-dim);
  font-size: 0.88rem;
  line-height: 1.55;
}

/* ===== MILESTONE ===== */
.page-about .about-milestone {
  padding: clamp(4rem, 9vw, 7.5rem) 0;
}

.page-about .about-milestone__layout {
  display: grid;
  gap: 2.5rem;
  margin-top: clamp(2rem, 5vw, 3.25rem);
}

.page-about .about-timeline {
  display: grid;
  gap: 1.25rem;
}

.page-about .about-timeline__rail {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(10, 102, 255, 0.1), rgba(54, 241, 165, 0.05));
  padding: 1rem 1.25rem;
}

.page-about .about-timeline__dots {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline__dots::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
  opacity: 0.5;
  border-radius: 2px;
}

.page-about .about-timeline__dots li:not(:last-child) {
  border-bottom: 1px dashed rgba(44, 62, 80, 0.65);
}

.page-about .about-timeline__dot {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.8rem 0.35rem;
  color: var(--color-text-dim);
  font-family: var(--font-data);
  font-size: 0.92rem;
  text-decoration: none;
  transition: color 0.25s var(--ease-out);
}

.page-about .about-timeline__dot::before {
  content: "";
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-primary);
  z-index: 1;
  transition: background 0.25s var(--ease-out), border-color 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
}

.page-about .about-timeline__dot:hover,
.page-about .about-timeline__dot:focus-visible {
  color: var(--color-text);
}

.page-about .about-timeline__dot:hover::before,
.page-about .about-timeline__dot:focus-visible::before {
  background: var(--color-secondary);
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 5px rgba(54, 241, 165, 0.15);
}

.page-about .about-timeline__art {
  margin: 0;
}

.page-about .about-timeline__art .img-frame {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
}

.page-about .about-timeline__art .img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .about-timeline__art figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.65rem;
  color: var(--color-text-dim);
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.07em;
}

.page-about .about-milestone__stories {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-node {
  position: relative;
  display: grid;
  gap: 0.6rem;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.25rem);
  overflow: hidden;
}

.page-about .about-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gradient-accent);
}

.page-about .about-node__ghost {
  position: absolute;
  right: 0.75rem;
  bottom: -0.9rem;
  font-family: var(--about-serif);
  font-size: clamp(4.5rem, 10vw, 7.5rem);
  font-weight: 700;
  line-height: 1;
  color: rgba(242, 244, 248, 0.045);
  pointer-events: none;
  user-select: none;
}

.page-about .about-node__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--color-text-dim);
  font-family: var(--font-data);
  font-size: 0.85rem;
  position: relative;
  z-index: 1;
}

.page-about .about-node__tag {
  background: rgba(54, 241, 165, 0.1);
  border: 1px solid rgba(54, 241, 165, 0.3);
  color: var(--color-secondary);
  border-radius: var(--radius-pill);
  padding: 0.22rem 0.75rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
}

.page-about .about-node__date {
  font-weight: 700;
  font-size: 1.05rem;
}

.page-about .about-node h3 {
  margin: 0.2rem 0 0;
  font-family: var(--font-head);
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  font-weight: 900;
  line-height: 1.25;
  position: relative;
  z-index: 1;
}

.page-about .about-node p {
  margin: 0;
  color: var(--color-text-dim);
  line-height: 1.8;
  max-width: 64ch;
  position: relative;
  z-index: 1;
}

/* ===== TEAM ===== */
.page-about .about-team {
  padding: clamp(4rem, 9vw, 7.5rem) 0;
  border-top: 1px solid var(--color-line);
  background:
    radial-gradient(ellipse 55% 70% at 12% 25%, rgba(10, 102, 255, 0.14), transparent 60%),
    radial-gradient(ellipse 45% 60% at 90% 85%, rgba(54, 241, 165, 0.08), transparent 55%);
}

.page-about .about-team__grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.page-about .about-team__content p {
  color: var(--color-text-dim);
  line-height: 1.85;
  margin: 0 0 1rem;
  max-width: 66ch;
}

.page-about .about-badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.4rem 0 0;
  padding: 0;
}

.page-about .about-badges li {
  border: 1px solid rgba(10, 102, 255, 0.5);
  background: rgba(10, 102, 255, 0.1);
  color: var(--color-text);
  border-radius: var(--radius-pill);
  padding: 0.45rem 0.9rem;
  font-size: 0.86rem;
  line-height: 1.4;
}

.page-about .about-team__stats {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 1.75rem 0 0;
  border-top: 1px solid var(--color-line);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
}

.page-about .about-team__stat {
  display: flex;
  flex-direction: column-reverse;
  gap: 0.25rem;
  margin: 0;
  background: rgba(18, 20, 26, 0.7);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.2rem;
}

.page-about .about-team__stat dt,
.page-about .about-team__stat dd {
  margin: 0;
}

.page-about .about-team__stat dt {
  color: var(--color-text-dim);
  font-size: 0.84rem;
}

.page-about .about-team__stat dd {
  font-family: var(--font-data);
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  font-weight: 700;
  color: var(--color-secondary);
  line-height: 1;
}

.page-about .about-team__chart {
  margin: 0;
  position: relative;
}

.page-about .about-team__chart .img-frame {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  box-shadow: 0 26px 80px -30px rgba(10, 102, 255, 0.45);
}

.page-about .about-team__chart .img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .about-team__chart figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.65rem;
  color: var(--color-text-dim);
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.07em;
}

/* ===== ECO ===== */
.page-about .about-eco {
  padding: clamp(4rem, 9vw, 7rem) 0;
  border-top: 1px solid var(--color-line);
}

.page-about .about-eco__pipeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  counter-reset: ecoStep;
}

.page-about .about-eco__step {
  counter-increment: ecoStep;
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 1.6rem 1.5rem 1.75rem;
  overflow: hidden;
  transition: border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

.page-about .about-eco__step:hover {
  border-color: rgba(54, 241, 165, 0.45);
  transform: translateY(-3px);
}

.page-about .about-eco__step::before {
  content: "0" counter(ecoStep);
  font-family: var(--font-data);
  font-size: 0.82rem;
  color: var(--color-primary);
  letter-spacing: 0.08em;
}

.page-about .about-eco__step::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--gradient-accent);
  opacity: 0.75;
}

.page-about .about-eco__step h3 {
  font-size: 1.16rem;
  font-weight: 800;
  margin: 0.7rem 0 0.5rem;
}

.page-about .about-eco__step p {
  color: var(--color-text-dim);
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0;
}

.page-about .about-eco__note {
  margin: 2.25rem auto 0;
  max-width: 720px;
  text-align: center;
  color: var(--color-text-dim);
  line-height: 1.8;
  border-top: 1px solid var(--color-line);
  padding-top: 1.75rem;
  font-size: 0.95rem;
}

/* ===== FUTURE ===== */
.page-about .about-future {
  position: relative;
  padding: clamp(5rem, 11vw, 9rem) 0;
  border-top: 1px solid var(--color-line);
  background:
    radial-gradient(ellipse 65% 75% at 75% 10%, rgba(10, 102, 255, 0.22), transparent 65%),
    radial-gradient(ellipse 45% 60% at 12% 95%, rgba(54, 241, 165, 0.12), transparent 55%);
  text-align: center;
  overflow: clip;
}

.page-about .about-future::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--gradient-accent);
  opacity: 0.6;
}

.page-about .about-future__inner {
  max-width: 880px;
  margin: 0 auto;
}

.page-about .about-future .eyebrow {
  margin-bottom: 1rem;
}

.page-about .about-future h2 {
  font-family: var(--font-head);
  font-size: clamp(2.1rem, 5.2vw, 3.9rem);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 0 0 1.5rem;
}

.page-about .about-future__inner > p:not(.eyebrow) {
  color: var(--color-text-dim);
  font-size: 1.05rem;
  line-height: 1.85;
  max-width: 720px;
  margin: 0 auto;
}

.page-about .about-future__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
  align-items: center;
  margin-top: 2.5rem;
}

.page-about .about-future__foot {
  margin-top: 2rem;
  font-size: 0.9rem;
}

.page-about .about-future__foot a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.page-about .about-future__foot a:hover {
  color: var(--color-secondary);
}

/* ===== MEDIA QUERIES ===== */
@media (min-width: 640px) {
  .page-about .about-hero__chapters {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-about .about-principles {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 800px) {
  .page-about .about-eco__pipeline {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 860px) {
  .page-about .about-section__header {
    grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-about .about-section__title {
    grid-column: 2;
    grid-row: 1;
  }

  .page-about .about-section__desc {
    grid-column: 3;
    grid-row: 1;
  }
}

@media (min-width: 900px) {
  .page-about .about-manifesto__inner {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(2rem, 6vw, 5rem);
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(2rem, 6vw, 5rem);
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(2rem, 5vw, 4.5rem);
    align-items: center;
  }

  .page-about .about-milestone__layout {
    grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4.5rem);
    align-items: start;
  }

  .page-about .about-timeline {
    position: sticky;
    top: 122px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .page-about .about-hero__chapters .chapter-index__item:hover,
  .page-about .about-principles li:hover,
  .page-about .about-eco__step:hover {
    transform: none;
  }
}