.page-about {
  --about-gap: clamp(28px, 5vw, 64px);
  background: var(--bg);
  color: var(--mint);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(40px, 7vw, 78px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(183, 255, 60, 0.13), transparent 62%),
    radial-gradient(90% 80% at 6% 100%, rgba(255, 162, 75, 0.1), transparent 68%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero .breadcrumb {
  margin-bottom: clamp(20px, 4vw, 38px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: start;
}

.page-about .about-hero h1 {
  margin: 12px 0 20px;
  font-family: var(--font-narrow);
  font-size: clamp(32px, 7.4vw, 64px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.012em;
  color: var(--warm);
  text-wrap: balance;
}

.page-about .about-hero__lede {
  margin: 0 0 clamp(22px, 4vw, 32px);
  max-width: 60ch;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.75;
  color: var(--mint);
}

.page-about .about-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__facts li {
  flex: 1 1 130px;
  min-width: 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, rgba(17, 46, 38, 0.92), rgba(10, 31, 26, 0.72));
}

.page-about .about-hero__fact-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.4vw, 26px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--lime);
  letter-spacing: -0.02em;
}

.page-about .about-hero__fact-label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--sage);
}

.page-about .about-hero__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 28px 70px -38px rgba(0, 0, 0, 0.95);
}

.page-about .about-hero__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-about .about-hero__caption {
  padding: 12px 16px 14px;
  font-family: var(--font-serif);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--sage);
  border-top: 1px solid var(--line);
}

/* ---------- 通用区块骨架 ---------- */
.page-about .about-block {
  padding: clamp(40px, 7vw, 88px) 0;
  border-top: 1px solid var(--line);
}

.page-about .about-block--narrow {
  background: var(--bg-deep);
}

.page-about .about-block__title {
  margin: 10px 0 16px;
  font-family: var(--font-narrow);
  font-size: clamp(24px, 4.6vw, 40px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--warm);
  text-wrap: balance;
}

.page-about .about-block__lede,
.page-about .about-block__text {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mint);
}

.page-about .about-block__lede {
  font-family: var(--font-serif);
  font-size: clamp(16px, 1.7vw, 17.5px);
  color: var(--lime-soft);
}

/* ---------- 时间线 ---------- */
.page-about .about-tl__figure {
  margin: 0 0 clamp(30px, 5vw, 48px);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--panel-2);
}

.page-about .about-tl__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.page-about .about-tl__figure figcaption {
  padding: 12px 16px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sage);
  border-top: 1px solid var(--line);
}

.page-about .about-tl {
  position: relative;
  margin: 0;
  padding: 0 0 0 30px;
  list-style: none;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--lime), var(--line-strong) 58%, var(--line));
}

.page-about .about-tl__item {
  position: relative;
  padding-bottom: clamp(24px, 4vw, 36px);
}

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

.page-about .about-tl__dot {
  position: absolute;
  left: -30px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 2px solid var(--line-strong);
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease), background 0.22s var(--ease);
}

.page-about .about-tl__item:hover .about-tl__dot,
.page-about .about-tl__item:focus-within .about-tl__dot {
  border-color: var(--lime);
  background: var(--lime);
  box-shadow: 0 0 0 5px rgba(183, 255, 60, 0.14);
}

.page-about .about-tl__year {
  display: inline-block;
  margin: 0 0 6px;
  padding: 2px 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--bg);
  background: var(--orange);
  border-radius: var(--radius-pill);
}

.page-about .about-tl__title {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.4vw, 21px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--warm);
}

.page-about .about-tl__text {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mint);
}

.page-about .about-tl__note {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--line-strong);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--sage);
  opacity: 0.72;
  transition: opacity 0.22s var(--ease), border-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-about .about-tl__item:hover .about-tl__note,
.page-about .about-tl__item:focus-within .about-tl__note {
  opacity: 1;
  border-left-color: var(--lime);
  color: var(--lime-soft);
}

/* ---------- 数据面板 ---------- */
.page-about .about-data {
  background:
    radial-gradient(90% 70% at 12% 0%, rgba(255, 162, 75, 0.09), transparent 66%),
    var(--bg);
}

.page-about .about-data__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 3vw, 32px);
  align-items: end;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .about-data__lede {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--sage);
}

.page-about .about-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .about-metric {
  position: relative;
  padding: 18px 15px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(168deg, var(--panel), rgba(10, 31, 26, 0.82));
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-about .about-metric::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  top: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--lime), transparent);
  opacity: 0;
  transition: opacity 0.22s var(--ease);
}

.page-about .about-metric:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
  box-shadow: 0 22px 44px -30px rgba(0, 0, 0, 0.95);
}

.page-about .about-metric:hover::after {
  opacity: 1;
}

.page-about .about-metric__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-about .about-metric__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 5.6vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--orange);
  transition: color 0.22s var(--ease), text-shadow 0.22s var(--ease);
}

.page-about .about-metric:hover .about-metric__num {
  color: var(--lime-soft);
  text-shadow: 0 0 22px rgba(183, 255, 60, 0.4);
}

.page-about .about-metric__desc {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--sage);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  position: relative;
  overflow: hidden;
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  padding: clamp(44px, 7vw, 92px) 0;
}

.page-about .about-team__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  filter: saturate(0.65);
  pointer-events: none;
}

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

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.page-about .about-bars {
  display: grid;
  gap: 18px;
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: rgba(17, 46, 38, 0.86);
  backdrop-filter: blur(2px);
}

.page-about .about-bar__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 9px;
}

.page-about .about-bar__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--mint);
}

.page-about .about-bar__val {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--sage);
  transition: color 0.22s var(--ease), text-shadow 0.22s var(--ease);
}

.page-about .about-bar:hover .about-bar__val {
  color: var(--lime);
  text-shadow: 0 0 16px rgba(183, 255, 60, 0.45);
}

.page-about .about-bar__track {
  height: 10px;
  border-radius: var(--radius-pill);
  background: rgba(10, 31, 26, 0.9);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-bar__fill {
  display: block;
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--lime), var(--lime-soft));
}

.page-about .about-bar__fill--a { width: 100%; }
.page-about .about-bar__fill--b { width: 73%; }
.page-about .about-bar__fill--c { width: 29%; }

.page-about .about-bar__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sage);
}

/* ---------- 合作生态 ---------- */
.page-about .about-eco__lead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
  padding: clamp(18px, 3vw, 26px);
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: linear-gradient(140deg, rgba(17, 46, 38, 0.95), rgba(10, 31, 26, 0.7));
}

.page-about .about-eco__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(38px, 9vw, 62px);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--orange);
}

.page-about .about-eco__text {
  flex: 1 1 240px;
  min-width: 0;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mint);
}

.page-about .about-eco__list {
  display: grid;
  gap: 10px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-about .about-eco__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--panel-2);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-about .about-eco__item:hover {
  border-color: var(--lime);
  background: var(--panel);
}

.page-about .about-eco__year {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--lime);
  letter-spacing: 0.02em;
}

.page-about .about-eco__label {
  flex: 1 1 200px;
  min-width: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mint);
}

.page-about .about-eco__foot {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--sage);
}

.page-about .about-eco__foot a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(183, 255, 60, 0.4);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .about-eco__foot a:hover {
  color: var(--lime-soft);
  border-bottom-color: var(--lime-soft);
}

/* ---------- 返回服务中心 ---------- */
.page-about .about-return {
  padding: clamp(36px, 6vw, 72px) 0;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(80% 120% at 90% 0%, rgba(183, 255, 60, 0.16), transparent 62%),
    var(--panel-2);
}

.page-about .about-return__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  align-items: center;
}

.page-about .about-return__title {
  margin: 10px 0 12px;
  font-family: var(--font-narrow);
  font-size: clamp(23px, 4.4vw, 36px);
  font-weight: 800;
  line-height: 1.16;
  color: var(--warm);
}

.page-about .about-return__text {
  margin: 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mint);
}

.page-about .about-return__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .about-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
    gap: clamp(32px, 5vw, 60px);
  }

  .page-about .about-data__head {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(36px, 5vw, 64px);
  }

  .page-about .about-return__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
  }

  .page-about .about-return__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1180px) {
  .page-about .about-metric {
    padding: 22px 20px 24px;
  }
}
<<<END>>>