.page-about {
  --about-gap: clamp(28px, 4vw, 56px);
  --about-dark: #3d2e1c;
  --about-dark-2: #26343d;
  background: var(--cream);
  color: var(--ink);
}

.page-about .about-link {
  color: var(--brown);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-about .about-link:hover,
.page-about .about-link:focus-visible {
  color: var(--orange);
}

/* ---------- 页边章节索引 ---------- */
.page-about .about-rail {
  display: none;
}

@media (min-width: 1440px) {
  .page-about .about-rail {
    display: block;
    position: fixed;
    left: 30px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    width: 96px;
  }

  .page-about .about-rail .rail__title {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .08em;
    color: var(--ink-mute);
    margin: 0 0 10px;
  }

  .page-about .about-rail .rail__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 8px;
  }

  .page-about .about-rail .rail__link {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.4;
    color: var(--ink-mute);
    text-decoration: none;
    display: block;
    padding-left: 10px;
    border-left: 1px solid transparent;
    transition: color .2s ease, border-color .2s ease;
  }

  .page-about .about-rail .rail__link:hover,
  .page-about .about-rail .rail__link[aria-current="true"] {
    color: var(--brown);
    border-left-color: var(--orange);
  }
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(120% 96% at 82% 24%, rgba(240, 138, 36, .3), transparent 58%),
    linear-gradient(152deg, var(--about-dark) 0%, #1c1917 56%, var(--about-dark-2) 100%);
  color: var(--cream);
  padding-block: clamp(120px, 18vh, 184px) clamp(56px, 8vw, 92px);
}

.page-about .about-hero__slit {
  position: absolute;
  top: -14%;
  right: 9%;
  width: clamp(110px, 17vw, 250px);
  height: 132%;
  transform: rotate(13deg);
  background: linear-gradient(180deg, rgba(255, 203, 102, .34), rgba(240, 138, 36, .13) 44%, transparent 82%);
  filter: blur(30px);
  opacity: .8;
  pointer-events: none;
  z-index: 0;
}

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

.page-about .about-hero__crumbs {
  margin-bottom: clamp(28px, 5vw, 52px);
}

.page-about .about-hero__crumb-item,
.page-about .about-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cream-mute);
}

.page-about .about-hero__eyebrow {
  margin: 0 0 18px;
  text-transform: uppercase;
  color: var(--amber);
}

.page-about .about-hero__title {
  margin: 0;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5vw, 62px);
  line-height: 1.16;
  letter-spacing: .01em;
  color: var(--cream);
  text-wrap: balance;
}

.page-about .about-hero__text {
  margin: clamp(22px, 3vw, 32px) 0 0;
  max-width: 44em;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
  color: var(--cream-soft);
}

.page-about .about-hero__actions {
  margin-top: clamp(26px, 3.4vw, 40px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__figures {
  margin: clamp(48px, 7vw, 84px) 0 0;
  padding-top: clamp(24px, 3vw, 34px);
  border-top: 1px solid var(--line-light);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 32px);
}

.page-about .about-hero__figure {
  min-width: 0;
}

.page-about .about-hero__figure dt {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 400;
  line-height: 1.1;
  color: var(--amber);
  letter-spacing: .02em;
}

.page-about .about-hero__figure dd {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--cream-soft);
}

@media (min-width: 720px) {
  .page-about .about-hero__figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline__list {
  list-style: none;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0 0 0 26px;
  border-left: 1px solid var(--line);
  margin-left: 5px;
  display: grid;
  gap: clamp(34px, 5vw, 62px);
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  gap: 12px;
}

.page-about .about-timeline__node {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-about .about-timeline__node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: .55em;
  width: 9px;
  height: 9px;
  margin-left: -5px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(240, 138, 36, .16);
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 26px);
  letter-spacing: .02em;
  color: var(--brown);
}

.page-about .about-timeline__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ink-mute);
}

.page-about .about-timeline__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.1vw, 24px);
  line-height: 1.35;
  color: var(--ink);
}

.page-about .about-timeline__body p {
  margin: 0;
  max-width: 42em;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-about .about-timeline__media {
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 560px;
}

.page-about .about-timeline__media .media-frame__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-about .about-timeline__media .media-frame__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

@media (min-width: 880px) {
  .page-about .about-timeline__list {
    padding-left: 34px;
  }

  .page-about .about-timeline__item {
    grid-template-columns: 156px minmax(0, 1fr);
    gap: clamp(24px, 3vw, 44px);
    align-items: start;
  }

  .page-about .about-timeline__node {
    flex-direction: column;
    gap: 6px;
    align-items: flex-start;
    padding-top: 2px;
  }

  .page-about .about-timeline__node::before {
    left: -34px;
    top: 14px;
  }
}

/* ---------- 双端剖面 ---------- */
.page-about .about-profile__figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

.page-about .about-profile__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.page-about .about-profile__figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

.page-about .about-profile__chart {
  margin-top: clamp(30px, 4vw, 48px);
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-chart {
  display: block;
  width: 100%;
  min-width: 700px;
  height: auto;
}

.page-about .about-chart__axis {
  stroke: var(--line-strong);
  stroke-width: 1;
}

.page-about .about-chart__bar rect {
  fill: url(#aboutBarGrad);
  transition: opacity .24s ease;
}

.page-about .about-chart__bar:hover rect {
  opacity: .78;
}

.page-about .about-chart__val {
  font-family: var(--font-mono);
  font-size: 15px;
  fill: var(--brown);
}

.page-about .about-chart__lab {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  fill: var(--ink-mute);
}

.page-about .about-profile__list {
  margin-top: clamp(26px, 3.4vw, 40px);
  display: grid;
  gap: 0;
  grid-template-columns: 1fr;
}

.page-about .about-profile__list .data-list__row {
  border-bottom: 1px solid var(--line);
}

@media (min-width: 700px) {
  .page-about .about-profile__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 40px);
  }
}

.page-about .about-profile__note {
  margin: clamp(24px, 3vw, 34px) 0 0;
  max-width: 46em;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
  color: var(--ink-soft);
  padding-left: 16px;
  border-left: 3px solid var(--amber);
}

/* ---------- 团队分工 ---------- */
.page-about .about-team__grid {
  margin-top: clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-team__col {
  background: var(--cream);
  padding: clamp(22px, 3vw, 34px);
}

.page-about .about-team__num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1;
  color: var(--orange);
  letter-spacing: .02em;
}

.page-about .about-team__role {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 1.8vw, 20px);
  line-height: 1.4;
  color: var(--ink);
}

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

.page-about .about-team__media {
  margin: clamp(30px, 4vw, 48px) 0 0;
}

.page-about .about-team__media .media-frame__img {
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-about .about-team__media .media-frame__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

@media (min-width: 900px) {
  .page-about .about-team__grid {
    grid-template-columns: 1.35fr 1fr 1.15fr;
  }

  .page-about .about-team__col--wide .about-team__text {
    max-width: 34em;
  }
}

/* ---------- 质量与合规 ---------- */
.page-about .about-quality .section-head__index {
  color: var(--amber);
}

.page-about .about-quality .section-head__title {
  color: var(--cream);
}

.page-about .about-quality .section-head__lead {
  color: var(--cream-soft);
}

.page-about .about-quality__list {
  list-style: none;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(251, 246, 238, .16);
  border: 1px solid rgba(251, 246, 238, .16);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-quality__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: clamp(20px, 3vw, 30px);
  background: rgba(28, 25, 23, .22);
  transition: background .24s ease;
}

.page-about .about-quality__item:hover {
  background: rgba(28, 25, 23, .42);
}

.page-about .about-quality__code {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-about .about-quality__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 1.8vw, 20px);
  line-height: 1.4;
  color: var(--cream);
}

.page-about .about-quality__state {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--jade);
  background: rgba(46, 125, 99, .18);
  border: 1px solid rgba(46, 125, 99, .5);
  border-radius: var(--radius);
  padding: 3px 9px;
}

.page-about .about-quality__desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--cream-soft);
}

@media (min-width: 820px) {
  .page-about .about-quality__item {
    grid-template-columns: 210px minmax(0, 1fr) auto;
    grid-template-areas:
      "code name state"
      "code desc desc";
    align-items: start;
    column-gap: clamp(20px, 3vw, 36px);
  }

  .page-about .about-quality__code { grid-area: code; }
  .page-about .about-quality__name { grid-area: name; }
  .page-about .about-quality__state { grid-area: state; }
  .page-about .about-quality__desc { grid-area: desc; }
}

/* ---------- 合作伙伴 ---------- */
.page-about .about-partners__band {
  margin-top: clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-partners__band .theme-band__cell {
  padding: clamp(22px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
}

.page-about .about-partners__band .theme-band__cell:last-child {
  border-bottom: 0;
}

.page-about .about-partners__band .theme-band__index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-about .about-partners__band .theme-band__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 1.8vw, 21px);
  line-height: 1.4;
  color: var(--ink);
}

.page-about .about-partners__band .theme-band__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

@media (min-width: 820px) {
  .page-about .about-partners__band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-partners__band .theme-band__cell {
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .page-about .about-partners__band .theme-band__cell:last-child {
    border-right: 0;
  }
}

.page-about .about-partners__note {
  margin-top: clamp(26px, 3.4vw, 40px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(18px, 3vw, 34px);
}

.page-about .about-partners__note p {
  margin: 0;
  flex: 1 1 340px;
  max-width: 44em;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 往后三年 ---------- */
.page-about .about-next__grid {
  margin-top: clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 30px);
}

.page-about .about-next__item {
  position: relative;
  padding: clamp(22px, 3vw, 32px) clamp(22px, 3vw, 32px) clamp(22px, 3vw, 32px) clamp(26px, 3.4vw, 38px);
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.page-about .about-next__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(22px, 3vw, 32px);
  bottom: clamp(22px, 3vw, 32px);
  width: 3px;
  background: linear-gradient(180deg, var(--amber), var(--orange));
  border-radius: 0 2px 2px 0;
}

.page-about .about-next__num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--copper);
}

.page-about .about-next__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(18px, 1.9vw, 22px);
  line-height: 1.38;
  color: var(--ink);
}

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

.page-about .about-next__metric {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--ink-mute);
}

@media (min-width: 880px) {
  .page-about .about-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .about-next__callout {
  margin-top: clamp(30px, 4vw, 46px);
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
}

.page-about .about-next__callout p {
  margin: 0;
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-chart__bar rect,
  .page-about .about-quality__item,
  .page-about .about-rail .rail__link {
    transition: none;
  }
}
<<<END>>>