.page-about {
  background: var(--paper);
  color: var(--brown);
  overflow-x: hidden;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(184, 255, 61, 0.14), transparent 58%),
    linear-gradient(150deg, var(--ink-deep) 0%, var(--ink) 52%, var(--ink-2) 100%);
  color: var(--text-light);
  padding: 26px 0 96px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    115deg,
    rgba(169, 184, 200, 0.06) 0 1px,
    transparent 1px 14px
  );
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 56px;
  background: var(--paper);
  clip-path: polygon(0 100%, 100% 22%, 100% 100%);
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-about .about-eyebrow {
  color: var(--lime);
  margin: 18px 0 12px;
}

.page-about .about-eyebrow--light {
  color: var(--lime);
  margin-top: 0;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: clamp(38px, 8.4vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
  transform: skewX(-4deg);
  transform-origin: left bottom;
  color: var(--text-light);
}

.page-about .about-hero__lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 56ch;
  margin: 0 0 22px;
}

.page-about .about-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
  padding: 0;
}

.page-about .about-chips__item {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-light);
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(169, 184, 200, 0.07);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.page-about .about-hero__figure .media {
  overflow: hidden;
  border: 1px solid rgba(169, 184, 200, 0.28);
  box-shadow: 0 30px 60px -40px rgba(0, 0, 0, 0.9);
}

.page-about .about-hero__figure figcaption {
  color: var(--mist);
  font-size: 13px;
  line-height: 1.6;
  margin-top: 10px;
}

/* ---------- Chapter index bar ---------- */
.page-about .about-index {
  background: var(--ink-2);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.page-about .about-index__track {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-top: 14px;
  padding-bottom: 14px;
  scrollbar-width: thin;
}

.page-about .about-index__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 8px 14px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
}

.page-about .about-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--hot);
}

.page-about .about-index__link:hover .about-index__no,
.page-about .about-index__link:focus-visible .about-index__no {
  color: var(--hot-deep);
}

/* ---------- Body sections ---------- */
.page-about .about-body {
  background: var(--paper);
  padding: 8px 0 16px;
}

.page-about .about-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-section__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--hot-deep);
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
}

.page-about .about-section__num::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}

.page-about .about-h2 {
  font-family: var(--font-display);
  font-size: clamp(25px, 5vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  color: var(--brown);
  position: relative;
  padding-left: 16px;
}

.page-about .about-h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 5px;
  background: var(--hot);
  transform: skewY(-12deg);
}

.page-about .about-h2--light {
  color: var(--text-light);
}

.page-about .about-section__body p {
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 16px;
  color: #3a2f27;
  max-width: 66ch;
}

.page-about .about-section__aside {
  align-self: start;
}

.page-about .about-note {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime-deep);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: 0 18px 32px -28px rgba(33, 26, 22, 0.75);
}

.page-about .about-note__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime-deep);
  margin: 0 0 8px;
}

.page-about .about-note p {
  font-size: 14px;
  line-height: 1.75;
  margin: 0 0 8px;
  color: var(--brown);
}

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

.page-about .about-note__link a {
  color: var(--hot-deep);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- Versus & metrics ---------- */
.page-about .versus {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 6px 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 14px;
  background: var(--paper-2);
}

.page-about .versus__side {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  padding: 4px 10px;
  border-radius: 4px;
}

.page-about .versus__side--home {
  background: var(--lime);
  color: var(--ink);
}

.page-about .versus__side--away {
  background: var(--hot);
  color: var(--text-light);
}

.page-about .versus__axis {
  flex: 1 1 auto;
  height: 2px;
  background: linear-gradient(90deg, var(--lime), var(--line), var(--hot));
}

.page-about .metric-grid {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-about .metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
}

.page-about .metric__name {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--line);
}

.page-about .metric__home,
.page-about .metric__away {
  font-size: 13.5px;
  line-height: 1.6;
  color: #4a3d33;
  display: flex;
  gap: 8px;
  align-items: baseline;
}

.page-about .metric__home::before,
.page-about .metric__away::before {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--text-light);
}

.page-about .metric__home::before {
  content: "主";
  background: var(--lime-deep);
}

.page-about .metric__away::before {
  content: "客";
  background: var(--hot-deep);
}

/* ---------- Flow steps ---------- */
.page-about .flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 4px 0 22px;
}

.page-about .flow__step {
  background: #fdf8f0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  box-shadow: 0 20px 34px -30px rgba(8, 22, 41, 0.7);
}

.page-about .flow__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--hot-deep);
}

.page-about .flow__title {
  font-family: var(--font-serif);
  font-size: 19px;
  margin: 6px 0 8px;
  color: var(--brown);
}

.page-about .flow__step p {
  font-size: 14px;
  line-height: 1.75;
  margin: 0;
  color: #4a3d33;
}

.page-about .about-governance__media {
  margin: 0 0 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 40px -34px rgba(33, 26, 22, 0.8);
}

.page-about .about-governance__media img,
.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- Timeline ---------- */
.page-about .about-timeline {
  background:
    radial-gradient(100% 80% at 12% 10%, rgba(255, 77, 46, 0.14), transparent 60%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: var(--text-light);
  padding: 52px 0 56px;
}

.page-about .about-timeline__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-about .about-timeline__lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  margin: 0;
  max-width: 40ch;
}

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

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--lime) 0%, rgba(184, 255, 61, 0.12) 100%);
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 26px 34px;
}

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

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--lime);
  box-shadow: 0 0 0 4px rgba(184, 255, 61, 0.12);
  transition: box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .timeline__item:hover::before {
  background: var(--lime);
  box-shadow: 0 0 0 7px rgba(184, 255, 61, 0.18);
}

.page-about .timeline__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--lime);
  margin-bottom: 4px;
}

.page-about .timeline__title {
  font-family: var(--font-serif);
  font-size: 19px;
  margin: 0 0 8px;
  color: var(--text-light);
}

.page-about .timeline__item p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
  max-width: 58ch;
}

/* ---------- Promise ---------- */
.page-about .about-promise {
  background: var(--paper);
  padding: 52px 0 48px;
}

.page-about .about-promise__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-about .about-promise__main p {
  font-size: 16px;
  line-height: 1.85;
  color: #3a2f27;
  margin: 0 0 16px;
  max-width: 62ch;
}

.page-about .fact-list {
  margin: 0 0 20px;
  border-top: 1px solid var(--line);
}

.page-about .fact-list__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .fact-list__row dt {
  font-size: 13.5px;
  color: #6b5a4c;
}

.page-about .fact-list__row dd {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin: 0;
  text-align: right;
}

.page-about .about-contact {
  background: var(--ink);
  color: var(--text-light);
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 26px 44px -36px rgba(8, 22, 41, 0.9);
}

.page-about .about-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lime);
  margin: 0 0 4px;
}

.page-about .about-contact__label:not(:first-child) {
  margin-top: 16px;
}

.page-about .about-contact__value {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--text-light);
  margin: 0 0 10px;
  word-break: break-word;
}

.page-about .about-contact .copy-btn {
  display: inline-block;
  margin-top: 2px;
}

/* ---------- Next steps ---------- */
.page-about .about-next {
  background: var(--ink-2);
  padding: 44px 0 52px;
}

.page-about .about-next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .about-next__card {
  border: 1px solid var(--line-dark);
  border-top: 3px solid var(--lime);
  border-radius: var(--radius);
  padding: 22px 20px;
  background: rgba(8, 22, 41, 0.55);
  color: var(--text-light);
}

.page-about .about-next__card--hot {
  border-top-color: var(--hot);
}

.page-about .about-next__title {
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.25;
  margin: 0 0 10px;
  color: var(--text-light);
  transform: skewX(-3deg);
  transform-origin: left center;
}

.page-about .about-next__card p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
  margin: 0 0 16px;
}

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  .page-about .about-hero {
    padding: 34px 0 104px;
  }

  .page-about .about-hero__lead {
    font-size: 17px;
  }

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

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

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

@media (min-width: 820px) {
  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: center;
    gap: 44px;
  }

  .page-about .about-section {
    grid-template-columns: 74px minmax(0, 1fr);
    column-gap: 30px;
    row-gap: 16px;
    padding: 56px 0;
  }

  .page-about .about-section__num {
    align-self: start;
    padding-top: 10px;
  }

  .page-about .about-section__num::after {
    display: none;
  }

  .page-about .about-section__aside {
    grid-column: 2;
    max-width: 520px;
  }

  .page-about .about-section__body p {
    font-size: 16.5px;
  }

  .page-about .about-timeline__grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-promise__grid {
    grid-template-columns: 7fr 5fr;
    gap: 44px;
    align-items: start;
  }

  .page-about .about-timeline {
    padding: 64px 0 68px;
  }

  .page-about .about-next {
    padding: 52px 0 60px;
  }
}

@media (min-width: 1080px) {
  .page-about .about-section--with-aside {
    grid-template-columns: 74px minmax(0, 1fr) 288px;
    column-gap: 36px;
  }

  .page-about .about-section--with-aside .about-section__aside {
    grid-column: 3;
    max-width: none;
  }

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

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

  .page-about .about-hero__title {
    font-size: clamp(54px, 5.4vw, 82px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__title,
  .page-about .about-next__title,
  .page-about .about-h2::before {
    transform: none;
  }

  .page-about .timeline__item::before {
    transition: none;
  }
}
<<<END>>>