.page-about {
  --p-sec-pad: clamp(40px, 7vw, 88px);
  --p-rule: 1px solid var(--hair);
  --p-card-bg: rgba(23, 58, 94, .42);
  --p-soft: rgba(242, 239, 230, .78);
  background:
    radial-gradient(120% 70% at 85% -10%, rgba(23, 58, 94, .62), transparent 68%),
    var(--ink-900);
  color: var(--paper);
  font-family: var(--sans);
  overflow-x: clip;
}

.page-about h2 {
  margin: 10px 0 0;
  font-size: clamp(23px, 3.6vw, 38px);
  line-height: 1.22;
  letter-spacing: .05em;
  font-weight: 800;
  color: var(--paper);
}

.page-about h3 {
  margin: 0;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.4;
  letter-spacing: .03em;
  font-weight: 700;
  color: var(--paper);
}

.page-about p {
  margin: 12px 0 0;
  line-height: 1.85;
  font-size: 15px;
  color: var(--p-soft);
}

.page-about a {
  color: var(--teal-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--hair);
  transition: color .18s ease, border-color .18s ease;
}

.page-about a:hover,
.page-about a:focus-visible {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.page-about .mono-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal);
}

.page-about .p-sec {
  position: relative;
  padding: var(--p-sec-pad) 0;
}

.page-about .p-sec--tight {
  padding: clamp(22px, 4vw, 40px) 0;
}

.page-about .p-head {
  margin-bottom: clamp(20px, 4vw, 36px);
  max-width: 62ch;
}

.page-about .p-head .lede {
  font-size: clamp(15px, 1.8vw, 17px);
  color: var(--p-soft);
}

.page-about .p-crumbs {
  padding-top: clamp(14px, 3vw, 26px);
}

.page-about .p-crumbs .breadcrumbs__link {
  border-bottom: 0;
}

/* ---------- 首屏框景 ---------- */
.page-about .p-hero {
  padding: clamp(18px, 3.5vw, 34px) 0 clamp(34px, 6vw, 62px);
}

.page-about .p-hero__frame {
  position: relative;
  padding: clamp(22px, 5vw, 56px);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: linear-gradient(158deg, rgba(16, 42, 76, .94), rgba(10, 23, 48, .88));
  overflow: hidden;
}

.page-about .p-hero__frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--hair-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--hair-soft) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: .55;
  pointer-events: none;
}

.page-about .p-hero__frame::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 64px;
  border-top: 2px solid var(--ochre);
  border-left: 2px solid var(--ochre);
  pointer-events: none;
}

.page-about .p-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .p-hero__body {
  min-width: 0;
}

.page-about .p-hero__title {
  margin: 14px 0 0;
  font-size: clamp(29px, 6.2vw, 66px);
  line-height: 1.12;
  letter-spacing: .06em;
  font-weight: 800;
  color: var(--paper);
}

.page-about .p-hero__lede {
  margin-top: 18px;
  max-width: 56ch;
  font-size: clamp(15px, 1.9vw, 17px);
  color: var(--p-soft);
}

.page-about .p-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .p-hero__actions .btn {
  border-bottom: 0;
}

.page-about .p-hero__aside {
  padding-left: 16px;
  border-left: 1px solid var(--hair);
}

.page-about .p-aside__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-about .p-aside__item {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  justify-content: space-between;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed var(--hair-soft);
}

.page-about .p-aside__k {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--p-soft);
}

.page-about .p-aside__v {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--gold);
  letter-spacing: .04em;
}

/* ---------- 页内索引 ---------- */
.page-about .p-toc {
  border-top: var(--p-rule);
  border-bottom: var(--p-rule);
  background: rgba(16, 42, 76, .32);
}

.page-about .p-toc__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .p-toc__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 14px;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--paper);
  background: rgba(10, 23, 48, .45);
  border: 1px solid transparent;
  border-left: 2px solid var(--hair);
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: background .18s ease, border-color .18s ease, color .18s ease;
}

.page-about .p-toc__link:hover,
.page-about .p-toc__link:focus-visible {
  background: rgba(47, 182, 166, .14);
  border-left-color: var(--teal);
  color: var(--teal-soft);
  outline: 2px solid var(--teal-soft);
  outline-offset: 1px;
}

.page-about .p-toc__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gold);
}

/* ---------- 品牌缘起 ---------- */
.page-about .p-genesis__grid {
  display: grid;
  gap: clamp(22px, 4vw, 46px);
  align-items: center;
}

.page-about .p-genesis__text {
  min-width: 0;
}

.page-about .p-genesis__text p {
  max-width: 60ch;
}

.page-about .p-genesis__figure {
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
}

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

.page-about .p-ridge {
  display: block;
  width: 100%;
  height: clamp(44px, 6vw, 80px);
  color: var(--ink-700);
  opacity: .6;
}

/* ---------- 旁注 ---------- */
.page-about .p-note {
  margin-top: 14px;
  padding-left: 12px;
  border-left: 1px solid var(--hair);
}

.page-about .p-note summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--teal);
  transition: color .18s ease;
}

.page-about .p-note summary::-webkit-details-marker {
  display: none;
}

.page-about .p-note summary::before {
  content: "+";
  font-size: 14px;
  color: var(--ochre);
}

.page-about .p-note[open] summary::before {
  content: "−";
}

.page-about .p-note summary:hover,
.page-about .p-note summary:focus-visible {
  color: var(--teal-soft);
  outline: 2px solid var(--teal-soft);
  outline-offset: 3px;
}

.page-about .p-note p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 239, 230, .74);
  max-width: 58ch;
}

/* ---------- 使用场景 ---------- */
.page-about .p-audience {
  background: linear-gradient(180deg, rgba(16, 42, 76, .46), transparent 78%);
}

.page-about .p-audience__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .p-card {
  padding: 20px 18px 18px;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--p-card-bg), rgba(16, 42, 76, .18));
  transition: border-color .18s ease, transform .18s ease;
}

.page-about .p-card:hover,
.page-about .p-card:focus-within {
  border-color: var(--teal);
  transform: translateY(-2px);
}

.page-about .p-card__num {
  margin: 0;
  font-family: var(--mono);
  font-size: 20px;
  letter-spacing: .1em;
  color: var(--ochre);
}

.page-about .p-card__title {
  margin-top: 10px;
}

.page-about .p-card__text {
  font-size: 14px;
  line-height: 1.8;
}

.page-about .p-card__meta {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px dashed var(--hair-soft);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--teal);
}

/* ---------- 运营原则 ---------- */
.page-about .p-principles__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--p-rule);
}

.page-about .p-principle {
  display: grid;
  gap: 6px;
  padding: clamp(18px, 3vw, 26px) 0;
  border-bottom: var(--p-rule);
}

.page-about .p-principle__num {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-about .p-principle__body {
  min-width: 0;
}

.page-about .p-principle__text {
  max-width: 62ch;
}

/* ---------- 发展历程 ---------- */
.page-about .p-timeline__figure {
  margin: 0 0 clamp(18px, 3vw, 30px);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
}

.page-about .p-timeline__track {
  list-style: none;
  margin: 0;
  padding: 22px 0 14px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(230px, 1fr);
  gap: 0;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  border-top: 2px solid var(--hair);
}

.page-about .p-timeline__node {
  position: relative;
  scroll-snap-align: start;
  padding: 6px 18px 6px 0;
  border-right: 1px solid var(--hair-soft);
  min-width: 0;
  transition: background .18s ease;
}

.page-about .p-timeline__node::before {
  content: "";
  position: absolute;
  top: -30px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--line);
  transition: border-color .18s ease, background .18s ease;
}

.page-about .p-timeline__node:hover,
.page-about .p-timeline__node:focus-visible {
  background: rgba(47, 182, 166, .08);
  outline: 2px solid var(--teal-soft);
  outline-offset: 2px;
}

.page-about .p-timeline__node:hover::before,
.page-about .p-timeline__node:focus-visible::before {
  border-color: var(--ochre);
  background: var(--gold);
}

.page-about .p-timeline__year {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-about .p-timeline__title {
  margin-top: 8px;
  font-size: 17px;
}

.page-about .p-timeline__text {
  font-size: 14px;
  line-height: 1.8;
}

.page-about .p-timeline__hint {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--line);
}

/* ---------- 团队与协作 ---------- */
.page-about .p-team__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

.page-about .p-team__groups {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .p-team__group {
  padding: 16px;
  border: 1px solid var(--hair);
  border-top: 2px solid var(--teal);
  border-radius: 0 0 var(--radius) var(--radius);
  background: rgba(16, 42, 76, .5);
}

.page-about .p-team__group p {
  font-size: 14px;
  line-height: 1.8;
}

.page-about .p-team__count {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-about .p-team__figure {
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
}

.page-about .p-team__partners {
  margin-top: clamp(20px, 4vw, 34px);
  padding: 18px 20px;
  border-left: 3px solid var(--ochre);
  background: rgba(198, 138, 58, .09);
}

.page-about .p-team__partners p {
  max-width: 70ch;
}

/* ---------- 资质与联络 ---------- */
.page-about .p-cred {
  background: linear-gradient(180deg, rgba(16, 42, 76, .5), transparent 82%);
}

.page-about .p-cred__grid {
  display: grid;
  gap: clamp(20px, 4vw, 36px);
  grid-template-columns: minmax(0, 1fr);
}

.page-about .p-cred__block {
  padding-top: 16px;
  border-top: 2px solid var(--ochre);
  min-width: 0;
}

.page-about .p-cred__mono {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: clamp(15px, 2.2vw, 20px);
  letter-spacing: .08em;
  color: var(--gold);
  word-break: break-word;
}

.page-about .p-cred__text {
  font-size: 14px;
}

.page-about .p-cred__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.page-about .p-cred__row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  justify-content: space-between;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed var(--hair-soft);
}

.page-about .p-cred__k {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--p-soft);
}

.page-about .p-cred__v {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--paper);
  word-break: break-word;
}

.page-about .p-copy {
  margin-top: 16px;
  padding: 10px 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--teal-soft);
  background: transparent;
  border: 1px solid var(--teal);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}

.page-about .p-copy:hover,
.page-about .p-copy:focus-visible {
  background: var(--teal);
  color: var(--ink-900);
  outline: 2px solid var(--teal-soft);
  outline-offset: 3px;
}

/* ---------- 收尾 ---------- */
.page-about .p-outro {
  padding: clamp(48px, 9vw, 116px) 0 clamp(56px, 10vw, 126px);
  border-top: var(--p-rule);
}

.page-about .p-outro__inner {
  display: grid;
  gap: clamp(20px, 4vw, 34px);
  align-items: end;
}

.page-about .p-outro__title {
  font-size: clamp(22px, 3.4vw, 34px);
  margin-top: 10px;
}

.page-about .p-outro__inner .lede {
  margin-top: 12px;
  max-width: 52ch;
  font-size: 15px;
  color: var(--p-soft);
}

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

.page-about .p-outro__actions .btn {
  border-bottom: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .p-toc__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 820px) {
  .page-about .p-principle {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-about .p-cred__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  }

  .page-about .p-outro__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 900px) {
  .page-about .p-hero__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, .78fr);
    align-items: end;
  }

  .page-about .p-genesis__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-about .p-team__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
  }
}

@media (min-width: 1000px) {
  .page-about .p-toc__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 1100px) {
  .page-about .p-genesis__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .p-card,
  .page-about .p-toc__link,
  .page-about .p-timeline__node,
  .page-about .p-copy,
  .page-about a {
    transition: none;
  }

  .page-about .p-card:hover {
    transform: none;
  }
}
<<<END>>>