.page-about {
  --about-lead: clamp(1rem, 1.6vw, 1.125rem);
  --about-gap: clamp(48px, 7vw, 92px);
  background: var(--ink);
  color: var(--white);
  padding-bottom: clamp(48px, 7vw, 96px);
  overflow-x: hidden;
}

.page-about .about-kicker {
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lime);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(18px, 3vw, 34px) 0 clamp(34px, 5vw, 60px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -20% -20% auto -30%;
  height: 380px;
  background:
    radial-gradient(closest-side, rgba(124, 255, 203, 0.22), transparent 72%),
    radial-gradient(closest-side, rgba(199, 255, 62, 0.12), transparent 70%);
  filter: blur(6px);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-about .about-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 8vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--lime);
}

.page-about .about-hero__lede {
  margin: 0 0 16px;
  max-width: 46ch;
  font-size: var(--about-lead);
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-hero__note {
  margin: 0;
  max-width: 44ch;
  padding-left: 14px;
  border-left: 2px solid var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--sage);
}

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

.page-about .about-stats__cell {
  display: flex;
  flex-direction: column-reverse;
  justify-content: flex-end;
  gap: 6px;
  padding: 18px 16px 20px;
  background: var(--ink-2);
}

.page-about .about-stats__cell dd {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
}

.page-about .about-stats__cell dd .num {
  font-family: var(--font-num);
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1;
  color: var(--lime);
}

.page-about .about-stats__unit {
  font-size: 12px;
  line-height: 1.4;
  color: var(--mist);
}

.page-about .about-stats__cell dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sage);
}

/* ---------- 章节布局 ---------- */
.page-about .about-layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  padding-top: clamp(8px, 2vw, 18px);
}

.page-about .about-index__label {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-about .about-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

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

.page-about .about-index__link .num {
  font-family: var(--font-num);
  font-size: 10px;
  color: var(--sage);
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  border-color: var(--lime);
  color: var(--ink);
  background: var(--lime);
  outline: none;
}

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

.page-about .about-body {
  display: grid;
  gap: var(--about-gap);
  min-width: 0;
}

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

.page-about .about-chapter__head {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-about .about-chapter__index {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-about .about-chapter__index::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--line);
}

.page-about .about-chapter__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.65rem, 5vw, 2.9rem);
  line-height: 1.12;
  letter-spacing: -0.005em;
  color: var(--white);
}

.page-about .about-chapter__lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: var(--about-lead);
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-chapter__split {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.page-about .about-chapter__copy p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-about .about-figure {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: var(--board);
  border: 1px solid var(--line);
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.02);
}

.page-about .about-figure figcaption {
  padding: 12px 16px 16px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--sage);
}

.page-about .about-lines {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-lines__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 13px 16px;
  background: var(--ink-2);
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-lines__tag {
  flex: none;
  min-width: 48px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--lime);
}

/* ---------- 三条主线 ---------- */
.page-about .about-rows {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-rows__item {
  display: grid;
  gap: 8px;
  padding: clamp(20px, 3vw, 28px) 0;
  background: var(--ink);
  transition: background var(--t) var(--ease);
}

.page-about .about-rows__no {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-about .about-rows__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  line-height: 1.3;
  color: var(--white);
}

.page-about .about-rows__text {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-rows__item:hover {
  background: var(--ink-2);
}

.page-about .about-inline-link {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sage);
}

.page-about .about-inline-link a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
}

.page-about .about-inline-link a:hover,
.page-about .about-inline-link a:focus-visible {
  border-bottom-color: var(--lime);
  outline: none;
}

/* ---------- 三审流程 ---------- */
.page-about .about-flow {
  position: relative;
  margin: 0 0 clamp(24px, 4vw, 40px);
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--r-xl);
  background: linear-gradient(160deg, rgba(23, 74, 58, 0.95), rgba(13, 47, 38, 0.95));
  border: 1px solid var(--line);
}

.page-about .about-flow__wire {
  display: none;
}

.page-about .about-flow__nodes {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-about .about-flow__node {
  position: relative;
  padding: 16px 16px 16px 34px;
  border-radius: var(--r-lg);
  background: rgba(7, 31, 26, 0.62);
  border: 1px solid var(--line);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease), background var(--t) var(--ease);
}

.page-about .about-flow__node:hover,
.page-about .about-flow__node:focus-within,
.page-about .about-flow__node:focus-visible {
  border-color: var(--lime);
  background: rgba(7, 31, 26, 0.9);
  transform: translateY(-4px);
  outline: none;
}

.page-about .about-flow__node:focus-visible {
  box-shadow: 0 0 0 3px var(--ink), 0 0 0 5px var(--lime);
}

.page-about .about-flow__dot {
  position: absolute;
  left: 14px;
  top: 22px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime);
}

.page-about .about-flow__dot--orange {
  background: var(--orange);
}

.page-about .about-flow__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.15rem;
  line-height: 1.3;
  color: var(--white);
}

.page-about .about-flow__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-flow__check {
  margin: 10px 0 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-family: var(--font-num);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--orange-soft);
  transition: max-height var(--t) var(--ease), opacity var(--t) var(--ease), margin var(--t) var(--ease);
}

.page-about .about-flow__node:hover .about-flow__check,
.page-about .about-flow__node:focus-within .about-flow__check,
.page-about .about-flow__node:focus-visible .about-flow__check {
  max-height: 6em;
  opacity: 1;
  margin-top: 12px;
}

.page-about .about-chapter__split--reverse {
  align-items: center;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-about .about-team__role {
  padding: 18px 18px 20px;
  background: var(--ink-2);
}

.page-about .about-team__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--lime);
}

.page-about .about-team__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-team__note {
  margin: 20px 0 0;
  padding: 14px 18px;
  border-left: 2px solid var(--orange);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(255, 155, 74, 0.08);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 赛季节奏 ---------- */
.page-about .about-chapter--season {
  position: relative;
  padding: clamp(24px, 4vw, 40px) clamp(18px, 3vw, 32px);
  border-radius: var(--r-xl);
  overflow: hidden;
  background: linear-gradient(200deg, rgba(124, 255, 203, 0.16), rgba(7, 31, 26, 0.96) 62%);
  border: 1px solid var(--line);
}

.page-about .about-season__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.24;
}

.page-about .about-season__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.35) brightness(0.7);
}

.page-about .about-chapter--season > *:not(.about-season__bg) {
  position: relative;
  z-index: 1;
}

.page-about .about-season {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  counter-reset: stage;
}

.page-about .about-season__stage {
  position: relative;
  padding-left: 22px;
  border-left: 1px solid var(--line);
}

.page-about .about-season__stage::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 20px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(7, 31, 26, 0.9);
}

.page-about .about-season__details {
  border-radius: var(--r-md);
  background: rgba(7, 31, 26, 0.72);
  border: 1px solid var(--line);
  transition: border-color var(--t) var(--ease);
}

.page-about .about-season__details[open] {
  border-color: var(--lime);
}

.page-about .about-season__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-season__summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
  border-radius: var(--r-md);
}

.page-about .about-season__phase {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-about .about-season__hint {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-about .about-season__details[open] .about-season__hint {
  color: var(--lime);
}

.page-about .about-season__details p {
  margin: 0;
  padding: 0 16px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 合作生态 ---------- */
.page-about .about-band {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: 22px;
}

.page-about .about-band__cell {
  padding: 20px 18px 22px;
  background: var(--ink-2);
}

.page-about .about-band__num {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: clamp(2rem, 6vw, 2.6rem);
  line-height: 1;
  color: var(--orange);
}

.page-about .about-band__label {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-about .about-band__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--sage);
}

/* ---------- 联系 ---------- */
.page-about .about-contact {
  display: grid;
  gap: 20px;
}

.page-about .about-contact__main p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-about .about-contact__card {
  padding: 20px;
  border-radius: var(--r-lg);
  background: var(--board);
  border: 1px solid var(--line);
}

.page-about .about-contact__row {
  margin: 0 0 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-about .about-contact__label {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-about .about-contact__value {
  font-size: 14px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-about .about-contact__note {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--sage);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-about .about-chapter__split {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-chapter__split--reverse {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  }

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

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

  .page-about .about-rows__item {
    grid-template-columns: 44px minmax(0, 1fr);
    column-gap: 16px;
    align-items: start;
    padding-left: 4px;
  }

  .page-about .about-rows__no {
    grid-row: span 2;
    padding-top: 6px;
  }

  .page-about .about-contact {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-about .about-layout {
    grid-template-columns: 196px minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: 28px;
  }

  .page-about .about-index__list {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    padding-bottom: 0;
  }

  .page-about .about-index__link {
    border-color: transparent;
    border-radius: var(--r-md);
    padding: 9px 12px;
  }

  .page-about .about-flow__wire {
    display: block;
    position: absolute;
    left: 6%;
    right: 6%;
    top: 66px;
    width: 88%;
    height: 8px;
    opacity: 0.7;
  }

  .page-about .about-flow__nodes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-flow__node {
    padding: 22px 20px 22px 36px;
  }

  .page-about .about-season {
    gap: 12px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-flow__node,
  .page-about .about-rows__item,
  .page-about .about-index__link,
  .page-about .about-flow__check {
    transition: none;
  }

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