.page-about {
  --about-card: rgba(17, 79, 59, .58);
  --about-card-solid: #114F3B;
  --about-shadow: 0 26px 64px -34px rgba(0, 0, 0, .92);
  background-color: var(--ink);
  color: var(--paper-86);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  margin: 0;
  color: var(--paper);
  font-family: var(--font-display);
  letter-spacing: -.025em;
  line-height: 1.14;
}

.page-about h1 {
  font-size: clamp(1.85rem, 5.6vw, 3.3rem);
  font-weight: 900;
  letter-spacing: -.035em;
}

.page-about h2 {
  font-size: clamp(1.45rem, 3.7vw, 2.3rem);
  font-weight: 900;
}

.page-about h3 {
  font-size: clamp(1.02rem, 2.1vw, 1.24rem);
  font-weight: 800;
}

.page-about p {
  margin: 0;
  font-size: clamp(.94rem, 1.5vw, 1rem);
  line-height: 1.78;
}

.page-about .lede {
  max-width: 40rem;
  margin-top: .9rem;
  color: var(--paper-86);
  font-size: clamp(.98rem, 1.7vw, 1.08rem);
}

.page-about [id] {
  scroll-margin-top: 7rem;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-block: clamp(1.4rem, 4vw, 2.4rem) clamp(2.6rem, 7vw, 5rem);
  background:
    radial-gradient(110% 80% at 88% -10%, rgba(198, 255, 61, .16), transparent 58%),
    radial-gradient(85% 70% at -8% 12%, rgba(255, 107, 53, .12), transparent 56%),
    linear-gradient(180deg, var(--ink) 0%, var(--deep) 64%, var(--deep) 100%);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(143, 184, 163, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 184, 163, .07) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(78% 62% at 62% 18%, #000 0%, transparent 80%);
  mask-image: radial-gradient(78% 62% at 62% 18%, #000 0%, transparent 80%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

.page-about .about-hero__copy > .eyebrow {
  margin-top: clamp(1rem, 2.6vw, 1.6rem);
}

.page-about .about-hero__copy h1 {
  margin-top: .7rem;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: clamp(1.3rem, 3vw, 1.8rem);
}

.page-about .about-jump {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: clamp(1.2rem, 3vw, 1.6rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-jump a {
  display: inline-flex;
  align-items: center;
  padding: .42rem .78rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--sage);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .about-jump a:hover,
.page-about .about-jump a:focus-visible {
  border-color: var(--line-lime);
  background-color: rgba(198, 255, 61, .1);
  color: var(--lime);
}

/* ---------- 首屏主题视觉 ---------- */
.page-about .board {
  display: grid;
  gap: .85rem;
  padding: clamp(1rem, 2.8vw, 1.5rem);
  border: 1px solid var(--glass-line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(155deg, rgba(30, 107, 82, .58), rgba(6, 31, 24, .72));
  box-shadow: var(--about-shadow), inset 0 1px 0 rgba(198, 255, 61, .14);
  -webkit-backdrop-filter: blur(7px);
  backdrop-filter: blur(7px);
}

.page-about .board__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .8rem;
}

.page-about .board__label {
  color: var(--sage);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .24em;
}

.page-about .board__signal {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, .18), 0 0 14px rgba(255, 107, 53, .7);
}

.page-about .board__pitch {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(6, 31, 24, .55), rgba(11, 61, 46, .3));
}

.page-about .board__chips {
  display: grid;
  gap: .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .board-chip {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .6rem;
  padding: .55rem .75rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background-color: rgba(11, 61, 46, .7);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .board-chip:hover {
  border-color: var(--line-lime);
  background-color: rgba(17, 79, 59, .85);
  transform: translateY(-2px);
}

.page-about .board-chip__k {
  color: var(--sage);
  font-size: .72rem;
  letter-spacing: .06em;
}

.page-about .board-chip__v {
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 700;
}

.page-about .board-chip--orange {
  border-color: rgba(255, 107, 53, .48);
}

.page-about .board-chip--orange .board-chip__k {
  color: var(--orange);
}

.page-about .board-chip--orange .board-chip__v {
  color: var(--orange-soft);
}

.page-about .board__foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .5rem;
  padding-top: .7rem;
  border-top: 1px dashed var(--line);
  color: var(--sage);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
}

/* ---------- 通用章节 ---------- */
.page-about .section {
  position: relative;
  padding-block: clamp(2.4rem, 6.5vw, 4.6rem);
}

/* ---------- 品牌起点 ---------- */
.page-about .about-origin {
  background: linear-gradient(180deg, var(--deep) 0%, var(--deep) 62%, #0A3629 100%);
}

.page-about .about-origin__grid {
  display: grid;
  gap: clamp(1.4rem, 3.6vw, 2.6rem);
}

.page-about .about-origin__text h2 {
  margin: .8rem 0 1rem;
}

.page-about .about-origin__text p + p {
  margin-top: .9rem;
  color: var(--paper-70);
}

.page-about .about-origin__figure {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, var(--board), var(--ink));
}

.page-about .about-origin__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.9) brightness(.86);
}

.page-about .about-origin__caption {
  position: absolute;
  left: .8rem;
  right: .8rem;
  bottom: .8rem;
  padding: .6rem .8rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-sm);
  background-color: rgba(6, 31, 24, .78);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--paper-86);
  font-size: .78rem;
  line-height: 1.6;
}

/* ---------- 数据体系 ---------- */
.page-about .about-system {
  background:
    radial-gradient(70% 50% at 92% 0%, rgba(198, 255, 61, .1), transparent 62%),
    var(--ink);
}

.page-about .about-system__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.6rem);
}

.page-about .about-system__main h2 {
  margin: .8rem 0 1rem;
}

.page-about .about-system__main > p + p {
  margin-top: .85rem;
  color: var(--paper-70);
}

.page-about .about-system__note {
  margin-top: 1.2rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--glass-line);
  border-left: 3px solid var(--lime);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background-color: rgba(30, 107, 82, .38);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.page-about .about-system__note p {
  color: var(--paper-86);
  font-size: .92rem;
}

.page-about .about-spec {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .7rem;
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-spec__item {
  padding: .85rem .9rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background-color: var(--about-card);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .about-spec__item:hover {
  border-color: var(--line-lime);
  background-color: rgba(17, 79, 59, .82);
}

.page-about .about-spec__num {
  display: block;
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 4vw, 1.85rem);
  font-weight: 700;
  line-height: 1;
}

.page-about .about-spec__lab {
  display: block;
  margin-top: .4rem;
  color: var(--sage);
  font-size: .76rem;
  letter-spacing: .05em;
}

.page-about .about-system__figure {
  margin: 0;
  padding: .6rem;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background-color: rgba(11, 61, 46, .55);
}

.page-about .about-system__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: calc(var(--r-lg) - 8px);
  filter: saturate(.92) brightness(.9);
}

.page-about .about-system__figure figcaption {
  padding: .7rem .4rem .2rem;
  color: var(--sage);
  font-size: .78rem;
  line-height: 1.6;
}

/* ---------- 团队与流程 ---------- */
.page-about .about-team {
  background: linear-gradient(180deg, var(--ink) 0%, var(--board) 42%, var(--board) 100%);
}

.page-about .about-team__head h2 {
  margin: .8rem 0 .4rem;
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(1.3rem, 3.6vw, 2.2rem);
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-about .about-flow {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-about .flow-card {
  position: relative;
  padding: 1.1rem 1.15rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background-color: var(--about-card);
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .flow-card:hover {
  border-color: var(--line-lime);
  background-color: rgba(17, 79, 59, .82);
  transform: translateX(3px);
}

.page-about .flow-card:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 1.6rem;
  bottom: -1rem;
  width: 2px;
  height: 1rem;
  background-image: repeating-linear-gradient(180deg, var(--lime) 0 4px, transparent 4px 8px);
  opacity: .55;
}

.page-about .flow-card__idx {
  display: inline-block;
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
}

.page-about .flow-card h3 {
  margin: .45rem 0 .55rem;
}

.page-about .flow-card p {
  color: var(--paper-70);
  font-size: .92rem;
}

.page-about .flow-card .tag {
  margin-top: .8rem;
}

.page-about .flow-card__link {
  display: inline-block;
  margin-top: .8rem;
  color: var(--lime);
  font-size: .84rem;
  text-decoration: none;
  border-bottom: 1px solid var(--line-lime);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .flow-card__link:hover,
.page-about .flow-card__link:focus-visible {
  color: var(--lime-soft);
  border-color: var(--lime);
}

.page-about .about-team__figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background-color: rgba(6, 31, 24, .6);
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.88) brightness(.85);
}

.page-about .about-team__figure figcaption {
  padding: .8rem 1rem 1rem;
  color: var(--sage);
  font-size: .78rem;
  line-height: 1.65;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline-section {
  background:
    radial-gradient(60% 45% at 8% 8%, rgba(255, 107, 53, .1), transparent 60%),
    var(--ink);
}

.page-about .about-timeline-head h2 {
  margin: .8rem 0 .2rem;
}

.page-about .about-timeline {
  position: relative;
  margin: clamp(1.6rem, 4vw, 2.6rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--lime) 0%, rgba(198, 255, 61, .32) 52%, rgba(255, 107, 53, .85) 100%);
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: 1rem;
}

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

.page-about .about-timeline__node {
  position: absolute;
  left: 1px;
  top: .55rem;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--deep);
  border: 2px solid var(--lime);
  box-shadow: 0 0 0 4px rgba(198, 255, 61, .12);
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-timeline__item:hover .about-timeline__node {
  box-shadow: 0 0 0 7px rgba(198, 255, 61, .18);
  transform: scale(1.06);
}

.page-about .about-timeline__item--now .about-timeline__node {
  background-color: var(--orange);
  border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, .18);
}

.page-about .about-timeline__item--now:hover .about-timeline__node {
  box-shadow: 0 0 0 8px rgba(255, 107, 53, .2);
}

.page-about .about-timeline__body {
  padding: .95rem 1.05rem 1.05rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background-color: var(--about-card);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .about-timeline__body:hover {
  border-color: var(--line-lime);
  background-color: rgba(17, 79, 59, .8);
}

.page-about .about-timeline__item--now .about-timeline__body {
  border-color: rgba(255, 107, 53, .42);
}

.page-about .about-timeline__season {
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
}

.page-about .about-timeline__item--now .about-timeline__season {
  color: var(--orange);
}

.page-about .about-timeline__body h3 {
  margin: .4rem 0 .5rem;
}

.page-about .about-timeline__body > p {
  color: var(--paper-70);
  font-size: .92rem;
}

.page-about .about-timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: .8rem 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 合作生态 ---------- */
.page-about .about-partner {
  background: linear-gradient(180deg, var(--deep) 0%, #0A3629 55%, var(--ink) 100%);
}

.page-about .about-partner__head h2 {
  margin: .8rem 0 .2rem;
}

.page-about .about-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  margin-top: clamp(1.5rem, 4vw, 2.2rem);
}

.page-about .about-metric {
  position: relative;
  padding: .95rem 1rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(30, 107, 82, .45), rgba(6, 31, 24, .55));
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-metric::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--lime), transparent 72%);
  opacity: .8;
}

.page-about .about-metric:hover {
  border-color: var(--line-lime);
  transform: translateY(-3px);
}

.page-about .about-metric__num {
  display: block;
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 5.2vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
}

.page-about .about-metric__lab {
  display: block;
  margin-top: .5rem;
  color: var(--paper);
  font-size: .84rem;
  letter-spacing: .04em;
}

.page-about .about-metric__note {
  display: block;
  margin-top: .45rem;
  color: var(--sage);
  font-size: .78rem;
  line-height: 1.6;
}

.page-about .about-honor {
  display: grid;
  gap: .75rem;
  margin-top: .9rem;
}

.page-about .honor-card {
  padding: 1rem 1.1rem 1.15rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background-color: rgba(11, 61, 46, .6);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .honor-card:hover {
  border-color: var(--line-lime);
  background-color: rgba(17, 79, 59, .82);
}

.page-about .honor-card h3 {
  margin: .6rem 0 .45rem;
  font-size: clamp(.98rem, 2vw, 1.1rem);
}

.page-about .honor-card p {
  color: var(--paper-70);
  font-size: .88rem;
}

/* ---------- 联系区 ---------- */
.page-about .about-contact {
  background:
    radial-gradient(80% 60% at 100% 0%, rgba(11, 61, 46, .18), transparent 60%),
    var(--lime);
  color: var(--deep);
}

.page-about .about-contact__inner {
  display: grid;
  gap: clamp(1.4rem, 3.6vw, 2.4rem);
}

.page-about .about-contact .eyebrow {
  color: var(--board);
}

.page-about .about-contact h2 {
  margin: .7rem 0 .8rem;
  color: var(--deep);
}

.page-about .about-contact__lead > p {
  color: #123F30;
  font-size: clamp(.94rem, 1.6vw, 1rem);
  line-height: 1.8;
}

.page-about .about-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.2rem;
}

.page-about .about-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .72rem 1.2rem;
  border: 1px solid var(--deep);
  border-radius: 999px;
  background-color: var(--deep);
  color: var(--lime);
  font-size: .88rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-about .about-cta--ghost {
  background-color: transparent;
  color: var(--deep);
}

.page-about .about-cta--ghost:hover,
.page-about .about-cta--ghost:focus-visible {
  background-color: rgba(11, 61, 46, .12);
  color: var(--ink);
  border-color: var(--ink);
}

.page-about .about-contact__list {
  display: grid;
  gap: .65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-contact__item {
  padding: .85rem 1rem 1rem;
  border: 1px solid rgba(11, 61, 46, .28);
  border-radius: var(--r-md);
  background-color: rgba(246, 255, 244, .62);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .about-contact__item:hover {
  border-color: var(--deep);
  background-color: rgba(246, 255, 244, .84);
}

.page-about .about-contact__k {
  display: block;
  color: var(--board);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
}

.page-about .about-contact__v {
  display: block;
  margin-top: .35rem;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: clamp(.86rem, 2.3vw, .98rem);
  font-weight: 700;
  text-decoration: none;
  word-break: break-word;
}

.page-about a.about-contact__v:hover,
.page-about a.about-contact__v:focus-visible {
  color: var(--board);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-contact__n {
  display: block;
  margin-top: .4rem;
  color: #16483A;
  font-size: .78rem;
  line-height: 1.65;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-about .about-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .honor-card--wide {
    grid-column: 1 / -1;
  }

  .page-about .about-spec {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-timeline__item {
    padding-left: 3.4rem;
    margin-bottom: 1.15rem;
  }

  .page-about .about-timeline::before {
    left: 12px;
  }

  .page-about .about-timeline__node {
    left: 3px;
  }

  .page-about .about-contact__inner {
    grid-template-columns: 1.05fr .95fr;
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__inner {
    grid-template-columns: 5fr 7fr;
    align-items: center;
    gap: clamp(2rem, 4vw, 3.4rem);
  }

  .page-about .about-origin__grid {
    grid-template-columns: 1.02fr .98fr;
    align-items: center;
  }

  .page-about .about-system__inner {
    grid-template-columns: 1.25fr .75fr;
    align-items: start;
  }

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

  .page-about .board-chip {
    flex-direction: column;
    align-items: flex-start;
    gap: .3rem;
  }
}

@media (min-width: 1200px) {
  .page-about .about-origin__caption {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    padding: .75rem .95rem;
    font-size: .82rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .board-chip,
  .page-about .flow-card,
  .page-about .about-metric,
  .page-about .about-timeline__node {
    transition: none;
  }

  .page-about .board-chip:hover,
  .page-about .flow-card:hover,
  .page-about .about-metric:hover,
  .page-about .about-timeline__item:hover .about-timeline__node {
    transform: none;
  }
}
<<<END>>>