.page-about {
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(48px, 7vw, 88px);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(720px 420px at 84% 4%, rgba(231, 178, 76, 0.15), transparent 62%),
    radial-gradient(560px 420px at 4% 94%, rgba(70, 192, 174, 0.11), transparent 66%);
  pointer-events: none;
}

.page-about .about-hero .qp-shell {
  position: relative;
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  margin-top: clamp(20px, 3vw, 36px);
}

.page-about .about-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--qp-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--qp-gold);
}

.page-about .about-hero__title {
  margin: 0 0 20px;
  font-family: var(--qp-font-display);
  font-weight: 900;
  font-size: clamp(2.05rem, 6.4vw, 3.85rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--qp-paper);
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--qp-gold);
  background-image: linear-gradient(transparent 70%, rgba(231, 178, 76, 0.26) 70%);
  padding: 0 0.06em;
}

.page-about .about-hero__lede {
  max-width: 33em;
  color: var(--qp-paper);
}

.page-about .about-hero__text {
  max-width: 34em;
  margin: 16px 0 0;
  line-height: 1.85;
  color: var(--qp-mist);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero__panel {
  position: relative;
  padding: clamp(20px, 3vw, 26px);
  border: 1px solid var(--qp-line);
  background: linear-gradient(180deg, rgba(18, 24, 56, 0.92), rgba(10, 14, 42, 0.86));
}

.page-about .about-hero__panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 72px;
  height: 3px;
  background: linear-gradient(90deg, var(--qp-gold), var(--qp-coral));
}

.page-about .about-hero__panel-title {
  margin: 0 0 14px;
  font-family: var(--qp-font-label);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--qp-mist);
}

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

.page-about .about-meta__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 11px 0;
  border-top: 1px solid rgba(36, 42, 85, 0.85);
}

.page-about .about-meta__row:first-child {
  border-top: 0;
}

.page-about .about-meta__key {
  margin: 0;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  color: var(--qp-mist);
}

.page-about .about-meta__val {
  margin: 0;
  text-align: right;
  font-family: var(--qp-font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--qp-paper);
}

/* ---------- 01 由来与主张 ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .about-origin__aside {
  padding: 6px 0 6px 20px;
  border-left: 2px solid var(--qp-gold);
}

.page-about .about-origin__quote {
  margin: 0 0 12px;
  font-family: var(--qp-font-heading);
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  line-height: 1.55;
  color: var(--qp-gold-soft);
}

.page-about .about-origin__quotefrom {
  margin: 0;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--qp-mist);
}

.page-about .about-origin__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(36, 42, 85, 0.9);
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--qp-mist);
}

/* ---------- 02 版本长卷 ---------- */
.page-about .about-versions__lede {
  margin-top: clamp(16px, 2vw, 24px);
  max-width: 32em;
}

.page-about .about-timeline {
  position: relative;
  margin-top: clamp(28px, 4vw, 48px);
  padding-left: 30px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--qp-gold), rgba(231, 178, 76, 0.34) 55%, rgba(70, 192, 174, 0.42));
}

.page-about .about-node {
  position: relative;
  margin-bottom: clamp(24px, 3.2vw, 42px);
}

.page-about .about-node__dot {
  position: absolute;
  left: -30px;
  top: 22px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--qp-indigo);
  border: 1px solid var(--qp-gold);
  box-shadow: 0 0 0 4px rgba(10, 14, 42, 0.92), 0 0 14px rgba(231, 178, 76, 0.35);
}

.page-about .about-node__dot::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--qp-gold);
}

.page-about .about-node__card {
  position: relative;
  padding: clamp(16px, 2.6vw, 26px);
  border: 1px solid var(--qp-line);
  border-left: 2px solid rgba(231, 178, 76, 0.55);
  background: linear-gradient(160deg, rgba(18, 24, 56, 0.82), rgba(10, 14, 42, 0.55));
  transition: border-color 180ms ease, transform 180ms ease;
}

.page-about .about-node__card:hover {
  border-color: var(--qp-hairline);
  transform: translateX(3px);
}

.page-about .about-node__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin-bottom: 12px;
}

.page-about .about-node__title {
  margin: 0;
  font-family: var(--qp-font-heading);
  font-size: clamp(1.12rem, 2.2vw, 1.42rem);
  line-height: 1.35;
  color: var(--qp-paper);
}

.page-about .about-node__text {
  margin: 0;
  max-width: 40em;
  line-height: 1.85;
  color: var(--qp-mist);
}

.page-about .about-node__points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-node__points li {
  padding: 3px 10px;
  font-family: var(--qp-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.07em;
  color: var(--qp-jade);
  border: 1px dashed rgba(70, 192, 174, 0.4);
}

/* ---------- 通用图版 ---------- */
.page-about .about-plate {
  margin: clamp(24px, 3.4vw, 44px) 0;
}

.page-about .about-plate .qp-frame {
  border: 1px solid var(--qp-line);
  background: var(--qp-ink);
  overflow: hidden;
}

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

.page-about .about-plate__caption {
  margin-top: 12px;
  font-size: 0.8125rem;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--qp-mist);
}

/* ---------- 03 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .about-team__grid .about-plate {
  margin: 0;
}

.page-about .about-flow {
  display: grid;
  gap: 18px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-flow__step {
  padding-top: 16px;
  border-top: 1px solid var(--qp-line);
}

.page-about .about-flow__no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--qp-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--qp-gold);
}

.page-about .about-flow__title {
  margin: 0 0 8px;
  font-family: var(--qp-font-heading);
  font-size: 1.08rem;
  line-height: 1.4;
  color: var(--qp-paper);
}

.page-about .about-flow__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--qp-mist);
}

/* ---------- 04 规模 ---------- */
.page-about .about-scale__grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(26px, 4vw, 44px);
  background: var(--qp-line);
  border: 1px solid var(--qp-line);
}

.page-about .about-stat {
  padding: clamp(18px, 3vw, 28px);
  background: linear-gradient(170deg, var(--qp-ink), var(--qp-indigo));
}

.page-about .about-stat__num {
  font-family: var(--qp-font-display);
  font-weight: 900;
  font-size: clamp(2rem, 4.6vw, 3rem);
  line-height: 1;
  color: var(--qp-gold);
}

.page-about .about-stat__unit {
  margin-left: 6px;
  font-family: var(--qp-font-body);
  font-size: 0.875rem;
  color: var(--qp-mist);
}

.page-about .about-stat__label {
  margin: 14px 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--qp-mist);
}

.page-about .about-plate--scale {
  margin-top: clamp(26px, 4vw, 44px);
  margin-bottom: 0;
}

/* ---------- 05 更新节奏 ---------- */
.page-about .about-cadence {
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-cadence__row {
  display: grid;
  gap: 6px 24px;
  padding: 16px 0;
  border-top: 1px solid var(--qp-line);
}

.page-about .about-cadence__row:last-child {
  border-bottom: 1px solid var(--qp-line);
}

.page-about .about-cadence__key {
  font-family: var(--qp-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--qp-coral);
}

.page-about .about-cadence__val {
  margin: 0;
  max-width: 42em;
  line-height: 1.85;
  color: var(--qp-paper);
}

/* ---------- 06 视觉素材 ---------- */
.page-about .about-visual__grid {
  display: grid;
  gap: clamp(20px, 3vw, 28px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .about-visual__item {
  position: relative;
  padding: 20px 20px 22px;
  border: 1px solid var(--qp-line);
  background: linear-gradient(180deg, rgba(18, 24, 56, 0.7), rgba(10, 14, 42, 0.5));
}

.page-about .about-visual__item::after {
  content: "";
  position: absolute;
  left: 20px;
  bottom: 0;
  width: 40px;
  height: 2px;
  background: var(--qp-gold);
}

.page-about .about-visual__title {
  margin: 0 0 10px;
  font-family: var(--qp-font-heading);
  font-size: 1.05rem;
  color: var(--qp-paper);
}

.page-about .about-visual__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--qp-mist);
}

/* ---------- 07 去向 ---------- */
.page-about .about-next__grid {
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .about-next__grid .qp-card {
  height: 100%;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 28px;
  }

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

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

  .page-about .about-cadence__row {
    grid-template-columns: 160px minmax(0, 1fr);
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-about .about-origin__grid {
    grid-template-columns: 8fr 4fr;
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-about .about-plate--team {
    margin-top: 6px;
  }

  .page-about .about-timeline {
    padding-left: 48px;
  }

  .page-about .about-timeline::before {
    left: 11px;
  }

  .page-about .about-node__dot {
    left: -45px;
    top: 24px;
    width: 18px;
    height: 18px;
  }

  .page-about .about-node:nth-child(even) .about-node__card {
    margin-left: clamp(20px, 7vw, 110px);
  }

  .page-about .about-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px 32px;
  }

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

  .page-about .about-cadence__row {
    grid-template-columns: 200px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-node__card,
  .page-about .about-node__card:hover {
    transition: none;
    transform: none;
  }
}
<<<END>>>