.page-about {
  --about-line: rgba(41, 66, 74, .22);
  --about-soft: rgba(41, 66, 74, .1);
  --about-light-line: rgba(199, 211, 209, .22);
  background: var(--c-paper);
  color: var(--c-graphite);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-about a {
  color: var(--c-signal-deep);
  text-decoration: none;
}

/* ---------- 通用排版 ---------- */
.page-about .breadcrumbs {
  margin: 0 0 20px;
  font-size: .82rem;
  color: var(--c-water);
}

.page-about .about-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 4.2vw, 2.6rem);
  line-height: 1.14;
  letter-spacing: -.005em;
  margin: .35em 0 .6em;
  color: var(--c-ink);
}

.page-about .about-title--light {
  color: var(--c-paper);
}

.page-about .about-lede {
  margin: 0 0 1em;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--c-water);
  max-width: 62ch;
}

.page-about .about-lede:last-child {
  margin-bottom: 0;
}

.page-about .about-lede--light {
  color: var(--c-mist);
}

.page-about .about-head {
  margin-bottom: clamp(28px, 4vw, 46px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: clamp(26px, 5vw, 58px) 0 0;
}

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

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 7.4vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -.012em;
  margin: .28em 0 .5em;
  color: var(--c-ink);
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--c-signal-deep);
}

.page-about .about-hero__lede {
  margin: 0;
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  line-height: 1.8;
  color: var(--c-water);
  max-width: 52ch;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--about-line);
  border: 1px solid var(--about-line);
  align-self: start;
}

.page-about .about-hero__stats > div {
  background: var(--c-paper);
  padding: 14px 16px 16px;
}

.page-about .about-hero__stats dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-water);
}

.page-about .about-hero__stats dd {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.4vw, 1.85rem);
  line-height: 1;
  color: var(--c-signal-deep);
  font-variant-numeric: tabular-nums;
}

.page-about .about-hero__media {
  margin: clamp(26px, 4.5vw, 48px) 0 0;
  aspect-ratio: 16 / 7;
  overflow: hidden;
  background: var(--c-ink);
}

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

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  padding: clamp(44px, 8vw, 92px) 0 clamp(24px, 4vw, 44px);
}

.page-about .tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
  border-left: 1px solid var(--about-line);
}

.page-about .tl__item {
  position: relative;
  padding: 0 0 clamp(26px, 4vw, 42px);
}

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

.page-about .tl__item::before {
  content: "";
  position: absolute;
  top: .42em;
  left: -28px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-signal);
  box-shadow: 0 0 0 4px var(--c-paper);
}

.page-about .tl__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(.95rem, 2.4vw, 1.15rem);
  letter-spacing: .08em;
  color: var(--c-signal-deep);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-about .tl__year:hover,
.page-about .tl__year:focus-visible {
  color: var(--c-signal);
  border-bottom-color: var(--c-signal);
  outline: none;
}

.page-about .tl__item h3 {
  margin: .3em 0 .4em;
  font-size: clamp(1.05rem, 2.2vw, 1.28rem);
  font-weight: 700;
  line-height: 1.38;
  color: var(--c-ink);
}

.page-about .tl__item p {
  margin: 0 0 .6em;
  line-height: 1.76;
  color: var(--c-graphite);
  max-width: 60ch;
}

.page-about .tl__data {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-jade);
}

/* ---------- 深墨信息带 ---------- */
.page-about .about-band {
  position: relative;
  overflow: hidden;
  background: var(--c-ink);
  color: var(--c-paper);
  padding: clamp(22px, 4vw, 34px) 0;
}

.page-about .about-band::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -120%;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(77, 240, 169, .22), transparent 68%);
  pointer-events: none;
}

.page-about .about-band__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 16px;
}

.page-about .about-band__lead {
  margin: 0;
  font-size: .95rem;
  line-height: 1.65;
  color: var(--c-mist);
  max-width: 42ch;
}

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

.page-about .about-band__list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: .9rem;
  line-height: 1.5;
  color: var(--c-mist);
}

.page-about .about-band__list b {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--c-data);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding: clamp(44px, 8vw, 92px) 0;
}

.page-about .about-team__lead {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  margin-bottom: clamp(28px, 5vw, 48px);
}

.page-about .about-team__media {
  margin: 0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--c-ink-2);
}

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

.page-about .team-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .team-role {
  padding: 18px 0 22px;
  border-top: 2px solid var(--c-ink);
}

.page-about .team-role__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-water);
}

.page-about .team-role__num {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.3rem, 6vw, 3rem);
  line-height: 1;
  color: var(--c-ink);
  font-variant-numeric: tabular-nums;
}

.page-about .team-role__num span {
  margin-left: 4px;
  font-family: var(--font-body);
  font-size: .85rem;
  font-weight: 500;
  color: var(--c-water);
}

.page-about .team-role__bar {
  height: 4px;
  margin: 0 0 14px;
  background: var(--about-soft);
  overflow: hidden;
}

.page-about .team-role__bar span {
  display: block;
  height: 100%;
  background: var(--c-ink);
}

.page-about .team-role:nth-child(1) .team-role__bar span {
  width: 39%;
  background: var(--c-ink);
}

.page-about .team-role:nth-child(2) .team-role__bar span {
  width: 29%;
  background: var(--c-jade);
}

.page-about .team-role:nth-child(3) .team-role__bar span {
  width: 32%;
  background: var(--c-signal);
}

.page-about .team-role__desc {
  margin: 0;
  font-size: .95rem;
  line-height: 1.72;
  color: var(--c-graphite);
}

.page-about .team-role__more {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: .88rem;
  line-height: 1.68;
  color: var(--c-signal-deep);
  transition: max-height .32s var(--ease), opacity .24s var(--ease), margin-top .32s var(--ease);
}

.page-about .team-role:hover .team-role__more,
.page-about .team-role:focus-within .team-role__more {
  max-height: 8em;
  opacity: 1;
  margin-top: 8px;
}

/* ---------- 适配清单 ---------- */
.page-about .about-list {
  position: relative;
  overflow: hidden;
  background: var(--c-ink);
  color: var(--c-paper);
  padding: clamp(44px, 8vw, 96px) 0;
}

.page-about .about-list::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(77, 240, 169, .18) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .45;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 72%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 72%);
}

.page-about .about-list > .container {
  position: relative;
  z-index: 1;
}

.page-about .about-list__head {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .list-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 clamp(26px, 4vw, 44px);
  background: var(--about-light-line);
  border: 1px solid var(--about-light-line);
}

.page-about .list-facts > div {
  background: var(--c-ink);
  padding: 16px 18px 18px;
}

.page-about .list-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-mist);
}

.page-about .list-facts dd {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  line-height: 1.1;
  color: var(--c-data);
  font-variant-numeric: tabular-nums;
}

.page-about .list-revs h3 {
  margin: 0 0 16px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--c-paper);
}

.page-about .list-revs__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .list-revs__list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
}

.page-about .list-revs__num {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--c-data);
  font-variant-numeric: tabular-nums;
}

.page-about .list-revs__track {
  display: block;
  height: 6px;
  background: rgba(199, 211, 209, .16);
  overflow: hidden;
}

.page-about .list-revs__track span {
  display: block;
  height: 100%;
  background: var(--c-data);
}

.page-about .list-revs__list li:nth-child(1) .list-revs__track span { width: 82%; }
.page-about .list-revs__list li:nth-child(2) .list-revs__track span { width: 55%; }
.page-about .list-revs__list li:nth-child(3) .list-revs__track span { width: 100%; }

.page-about .list-revs__txt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--c-mist);
  white-space: nowrap;
}

.page-about .list-revs__note {
  margin: 0;
  max-width: 66ch;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--c-mist);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  padding: clamp(44px, 8vw, 92px) 0 clamp(20px, 4vw, 40px);
}

.page-about .partner-grid {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .partner-card {
  padding: 20px 18px 22px;
  border: 1px solid var(--about-line);
  background: rgba(255, 255, 255, .55);
  transition: border-color .24s var(--ease), background .24s var(--ease);
}

.page-about .partner-card:hover {
  border-color: rgba(15, 138, 102, .45);
  background: rgba(255, 255, 255, .85);
}

.page-about .partner-card__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-signal-deep);
}

.page-about .partner-card h3 {
  margin: 12px 0 8px;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--c-ink);
}

.page-about .partner-card p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.72;
  color: var(--c-graphite);
}

.page-about .partner-card__gain {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--about-line);
  color: var(--c-jade);
}

/* ---------- 服务覆盖 ---------- */
.page-about .about-coverage {
  padding: clamp(24px, 4vw, 52px) 0 clamp(44px, 8vw, 88px);
}

.page-about .about-coverage__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-coverage__media {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--c-ink-2);
}

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

.page-about .cover-grid {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-line);
  border: 1px solid var(--about-line);
}

.page-about .cover-cell {
  min-height: 62px;
  padding: 12px 12px 13px;
  background: var(--c-paper);
  transition: background .2s var(--ease);
}

.page-about .cover-cell__name {
  display: block;
  font-size: .92rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--c-ink);
}

.page-about .cover-cell__meta {
  display: block;
  margin-top: 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--c-jade);
  opacity: 0;
  transform: translateY(-2px);
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}

.page-about .cover-cell:hover,
.page-about .cover-cell:focus-within {
  background: rgba(15, 138, 102, .09);
}

.page-about .cover-cell:hover .cover-cell__meta,
.page-about .cover-cell:focus-within .cover-cell__meta {
  opacity: 1;
  transform: none;
}

/* ---------- 运营节奏 ---------- */
.page-about .about-rhythm {
  background: var(--c-ink);
  color: var(--c-paper);
  padding: clamp(44px, 8vw, 96px) 0;
}

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

.page-about .rhythm-steps {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-light-line);
  border-top: 1px solid var(--about-light-line);
}

.page-about .rhythm-steps li {
  background: var(--c-ink);
  padding: 20px 18px 24px;
}

.page-about .rhythm-steps__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-data);
}

.page-about .rhythm-steps h3 {
  margin: 10px 0 8px;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-about .rhythm-steps p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.74;
  color: var(--c-mist);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  padding: clamp(44px, 7vw, 84px) 0 clamp(48px, 8vw, 96px);
}

.page-about .about-cta__inner {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-about .about-cta__links {
  margin: 0;
  font-size: .92rem;
  line-height: 1.72;
  color: var(--c-water);
}

.page-about .about-cta__links a {
  border-bottom: 1px solid rgba(178, 58, 11, .4);
  padding-bottom: 1px;
}

.page-about .about-cta__links a:hover {
  border-bottom-color: var(--c-signal);
}

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

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

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .cover-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-about .about-hero__media {
    aspect-ratio: 16 / 6;
  }

  .page-about .about-band__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 36px;
  }

  .page-about .about-band__list {
    grid-template-columns: repeat(3, auto);
    gap: 28px;
  }

  .page-about .team-roles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    align-items: start;
  }

  .page-about .partner-card:nth-child(2) {
    margin-top: 28px;
  }

  .page-about .partner-card:nth-child(3) {
    margin-top: 12px;
  }

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

@media (min-width: 880px) {
  .page-about .tl__item {
    display: grid;
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 0 30px;
    align-items: start;
  }

  .page-about .tl__item h3 {
    margin-top: 0;
  }

  .page-about .about-team__lead {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-about .about-coverage__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-about .about-cta__links {
    max-width: 56ch;
  }
}

@media (hover: none) {
  .page-about .cover-cell__meta {
    opacity: 1;
    transform: none;
  }
}
<<<END>>>