.page-about {
  --about-shot-bg: linear-gradient(150deg, var(--moon-deep) 0%, var(--apricot-soft) 100%);
}

.page-about img {
  max-width: 100%;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(18px, 2.6vw, 30px);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--pine-2);
}

.page-about .breadcrumbs__item a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .breadcrumbs__item a:hover,
.page-about .breadcrumbs__item a:focus-visible {
  color: var(--apricot-deep);
  border-color: var(--apricot);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .about-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 74px);
  line-height: 1.07;
  letter-spacing: -.022em;
  color: var(--pine);
}

.page-about .about-hero__lead .lead {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 44ch;
  font-size: clamp(16px, 2.1vw, 18px);
  line-height: 1.8;
  color: var(--pine-2);
}

.page-about .about-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: clamp(20px, 3vw, 28px) 0 0;
}

.page-about .about-hero__door {
  display: grid;
  gap: 12px;
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius-lg);
  background: var(--moon-deep);
  box-shadow: var(--shadow-soft);
}

.page-about .about-hero__door .label-road {
  color: var(--pine-2);
  margin-bottom: 4px;
}

.page-about .about-lane {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  min-height: 44px;
  padding: 14px 18px;
  border-radius: var(--radius-pill);
  background: var(--moon);
  border: 1px solid transparent;
  color: var(--pine);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-lane:hover,
.page-about .about-lane:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: var(--apricot-soft);
}

.page-about .about-lane__arrow {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--apricot);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 15px;
  line-height: 1;
}

.page-about .about-lane__body {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.page-about .about-lane__title {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .02em;
}

.page-about .about-lane__desc {
  font-size: 13px;
  line-height: 1.5;
  color: var(--pine-2);
}

.page-about .about-hero__meta {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pine-2);
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .85fr);
    align-items: end;
  }
}

/* ---------- 通用小标题 ---------- */
.page-about h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 44px);
  line-height: 1.16;
  letter-spacing: -.016em;
  color: var(--pine);
}

.page-about h3 {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--pine);
}

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

.page-about .about-head .lead {
  margin: clamp(12px, 1.8vw, 18px) 0 0;
  max-width: 46ch;
  line-height: 1.8;
  color: var(--pine-2);
}

/* ---------- 品牌缘起 ---------- */
.page-about .about-origin {
  display: grid;
  gap: clamp(26px, 4vw, 54px);
}

.page-about .about-origin__text > p {
  margin: clamp(14px, 1.8vw, 20px) 0 0;
  max-width: 42ch;
  line-height: 1.85;
  color: var(--pine-2);
}

.page-about .about-origin__text h2 {
  max-width: 20ch;
}

.page-about .about-quote {
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 4px 0 4px clamp(16px, 2.4vw, 26px);
  border-left: 4px solid var(--apricot);
}

.page-about .about-quote p {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(18px, 2.6vw, 23px);
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--pine);
}

.page-about .about-shot {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--about-shot-bg);
  box-shadow: var(--shadow-soft);
}

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

.page-about .about-shot--tall img {
  aspect-ratio: 3 / 4;
}

.page-about .about-shot--wide img {
  aspect-ratio: 3 / 2;
}

@media (min-width: 900px) {
  .page-about .about-origin {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, .78fr);
    align-items: start;
  }

  .page-about .about-origin__text {
    padding-right: clamp(0px, 3vw, 30px);
  }
}

/* ---------- 四条原则 ---------- */
.page-about .about-principles {
  display: grid;
  gap: 14px;
  margin: clamp(26px, 3.6vw, 40px) 0 0;
}

.page-about .about-principle {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--moon);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .about-principle[open] {
  border-color: var(--apricot-soft);
  box-shadow: var(--shadow-soft);
}

.page-about .about-principle > summary {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 20px 56px 20px 22px;
  cursor: pointer;
  list-style: none;
}

.page-about .about-principle > summary::-webkit-details-marker {
  display: none;
}

.page-about .about-principle > summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--apricot-deep);
}

.page-about .about-principle[open] > summary::after {
  content: "–";
}

.page-about .about-principle > summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -4px;
}

.page-about .about-principle__title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--pine);
}

.page-about .about-principle__fact {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--apricot-deep);
}

.page-about .about-principle__body {
  padding: 16px 22px 22px;
  border-top: 1px dashed var(--line);
}

.page-about .about-principle__body p {
  margin: 0;
  max-width: 46ch;
  line-height: 1.82;
  color: var(--pine-2);
}

@media (min-width: 720px) {
  .page-about .about-principles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 版本年轮 ---------- */
.page-about .about-timeline {
  position: relative;
  list-style: none;
  margin: clamp(30px, 4.6vw, 52px) 0 0;
  padding: 0;
  display: grid;
  gap: 26px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  border-radius: 2px;
  background: repeating-linear-gradient(to bottom, var(--apricot-soft) 0 6px, transparent 6px 15px);
}

.page-about .about-timeline__node {
  position: relative;
  padding-left: 40px;
}

.page-about .about-timeline__dot {
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--apricot);
  border: 4px solid var(--moon);
  box-shadow: 0 0 0 2px var(--apricot-soft);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .about-timeline__ver {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--apricot-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--apricot-deep);
}

.page-about .about-timeline__node p {
  margin: 8px 0 0;
  max-width: 34ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--pine-2);
}

@media (min-width: 900px) {
  .page-about .about-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(16px, 2.4vw, 30px);
    align-items: start;
  }

  .page-about .about-timeline::before {
    left: 12px;
    right: 12px;
    top: 11px;
    bottom: auto;
    width: auto;
    height: 2px;
    background: repeating-linear-gradient(to right, var(--apricot-soft) 0 8px, transparent 8px 18px);
  }

  .page-about .about-timeline__node {
    padding-left: 0;
    padding-top: 42px;
  }

  .page-about .about-timeline__dot {
    top: 0;
  }

  .page-about .about-timeline__node:hover .about-timeline__dot {
    transform: scale(1.16);
    box-shadow: 0 0 0 7px rgba(232, 131, 58, .18);
  }
}

/* ---------- 团队与维护 ---------- */
.page-about .about-team {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-about .about-team__text > p {
  margin: clamp(14px, 1.8vw, 20px) 0 0;
  max-width: 42ch;
  line-height: 1.85;
  color: var(--pine-2);
}

.page-about .about-team__list {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .about-team__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: baseline;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

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

.page-about .about-team__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: .06em;
  color: var(--apricot-deep);
}

.page-about .about-team__desc {
  font-size: 15px;
  line-height: 1.78;
  color: var(--pine-2);
}

@media (min-width: 900px) {
  .page-about .about-team {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

/* ---------- 数据仪表板 ---------- */
.page-about .about-dash {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--pine);
  padding: clamp(26px, 4.6vw, 60px);
}

.page-about .about-dash__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .2;
  filter: saturate(.55);
}

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

.page-about .about-dash .eyebrow {
  color: var(--apricot-soft);
}

.page-about .about-dash h2 {
  color: var(--moon);
}

.page-about .about-dash__grid {
  list-style: none;
  margin: clamp(26px, 3.6vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-stat {
  display: grid;
  gap: 8px;
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius-md);
  background: rgba(250, 245, 236, .95);
}

.page-about .about-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.8vw, 38px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--apricot-deep);
}

.page-about .about-stat__label {
  font-size: 14px;
  line-height: 1.65;
  letter-spacing: .02em;
  color: var(--pine-2);
}

.page-about .about-dash__note {
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--blue-soft);
}

@media (min-width: 640px) {
  .page-about .about-dash__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  display: grid;
  gap: clamp(26px, 4vw, 50px);
}

.page-about .about-partners__intro > p {
  margin: clamp(14px, 1.8vw, 20px) 0 0;
  max-width: 44ch;
  line-height: 1.85;
  color: var(--pine-2);
}

.page-about .about-partners__cta {
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .about-partners__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-partners__item {
  padding: 18px 22px;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--apricot);
  background: var(--moon-deep);
}

.page-about .about-partners__tag {
  display: inline-block;
  color: var(--apricot-deep);
}

.page-about .about-partners__item p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--pine-2);
}

@media (min-width: 900px) {
  .page-about .about-partners {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: start;
  }
}

/* ---------- 收尾 ---------- */
.page-about .about-cta h2 {
  color: var(--moon);
}

.page-about .about-cta p {
  margin: clamp(14px, 1.8vw, 18px) 0 0;
  max-width: 52ch;
  line-height: 1.85;
  color: rgba(250, 245, 236, .8);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-about .about-cta__actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

@media (min-width: 760px) {
  .page-about .about-cta {
    display: grid;
    justify-items: start;
  }
}
<<<END>>>