.page-about {
  padding-bottom: clamp(56px, 8vw, 112px);
  background:
    radial-gradient(1100px 560px at 84% -6%, rgba(53, 224, 255, 0.075), transparent 62%),
    radial-gradient(880px 520px at 4% 34%, rgba(255, 182, 72, 0.05), transparent 60%);
}

.page-about .page-about__crumbs {
  padding-top: 28px;
}

.page-about .about-hero,
.page-about .about-claim,
.page-about .about-timeline,
.page-about .about-team,
.page-about .about-reach,
.page-about .about-eco,
.page-about .about-fit {
  padding-block: clamp(40px, 6vw, 84px);
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--line);
  margin-bottom: 28px;
}

.page-about .about-hero__ver {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .about-hero h1 {
  margin: 0 0 24px;
  max-width: 780px;
  font-size: clamp(32px, 5.6vw, 72px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .about-hero__lede {
  margin: 0 0 34px;
  max-width: 42em;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.85;
  color: var(--mist);
}

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

.page-about .about-hero__fact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 18px 18px;
  background: var(--ink-800);
}

.page-about .about-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 400;
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-hero__cap {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 主张 ---------- */

.page-about .about-claim__grid {
  display: grid;
  gap: 30px;
}

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

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

.page-about .about-claim__figure .media__frame {
  border: 2px solid var(--line);
  box-shadow: 8px 8px 0 rgba(53, 224, 255, 0.16);
}

.page-about h2 {
  margin: 10px 0 18px;
  max-width: 20em;
  font-size: clamp(25px, 3.4vw, 42px);
  font-weight: 400;
  line-height: 1.24;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .about-claim__copy p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-claim__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-claim__list li {
  padding: 4px 0 4px 16px;
  border-left: 2px solid var(--line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-claim__list strong {
  display: inline-block;
  margin-right: 8px;
  font-weight: 500;
  color: var(--cyan);
}

/* ---------- 通用节标题 ---------- */

.page-about .about-sec-head {
  max-width: 64ch;
  margin-bottom: 34px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--line);
}

.page-about .about-sec-head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 时间轴 ---------- */

.page-about .about-timeline__figure {
  margin: 0 0 34px;
}

.page-about .about-timeline__figure .media__frame {
  border: 2px solid var(--line);
}

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

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 30px 26px;
  border-left: 2px solid var(--line);
  min-width: 0;
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 7px;
  width: 10px;
  height: 10px;
  background: var(--ink-900);
  border: 2px solid var(--amber);
  transform: rotate(45deg);
}

.page-about .about-timeline__item--now::before {
  background: var(--amber);
}

.page-about .about-timeline__year {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-about .about-timeline__year small {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-about .about-timeline__body h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .about-timeline__body p {
  margin: 0;
  max-width: 50em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-inline-link {
  display: inline-block;
  margin-top: 28px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid rgba(53, 224, 255, 0.4);
  padding-bottom: 3px;
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 团队 ---------- */

.page-about .about-team__grid {
  display: grid;
  gap: 18px;
}

.page-about .about-team__panel {
  padding: 26px 22px 28px;
  border-top: 3px solid var(--cyan);
  min-width: 0;
}

.page-about .about-team__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(42px, 5.6vw, 64px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-team__panel h3 {
  margin: 10px 0 12px;
  font-size: 19px;
  font-weight: 500;
  color: var(--paper);
}

.page-about .about-team__panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 服务范围 ---------- */

.page-about .about-reach__grid {
  display: grid;
  gap: 30px;
}

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

.page-about .about-reach__figure .media__frame {
  border: 2px solid var(--line);
}

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

.page-about .about-reach__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--line);
  margin-bottom: 26px;
}

.page-about .about-reach__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  background: var(--ink-800);
}

.page-about .about-reach__stat strong {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.8vw, 30px);
  font-weight: 400;
  line-height: 1;
  color: var(--amber);
}

.page-about .about-reach__stat span {
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-reach__aside h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-about .about-bars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-about .about-bars li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 34px;
  align-items: center;
  gap: 12px;
}

.page-about .about-bar__label {
  font-size: 13px;
  color: var(--mist);
}

.page-about .about-bar {
  display: block;
  height: 8px;
  background: var(--ink-700);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-bar__fill {
  display: block;
  height: 100%;
  width: var(--w);
  background: linear-gradient(90deg, var(--cyan), rgba(53, 224, 255, 0.32));
}

.page-about .about-bar__val {
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: right;
  color: var(--paper);
}

/* ---------- 合作生态 ---------- */

.page-about .about-eco__grid {
  display: grid;
  gap: 24px;
}

.page-about .about-eco__main {
  padding: 28px 24px 30px;
  border-left: 3px solid var(--amber);
  min-width: 0;
}

.page-about .about-eco__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(46px, 6vw, 72px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-eco__main h3 {
  margin: 10px 0 12px;
  font-size: 19px;
  font-weight: 500;
  color: var(--paper);
}

.page-about .about-eco__main p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-about .about-eco__tags li {
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
  background: var(--ink-900);
}

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

.page-about .about-eco__flow h3 {
  margin: 0 0 18px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-about .about-eco__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-eco__steps li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
  border: 2px solid var(--line);
  background: var(--ink-800);
}

.page-about .about-eco__step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-about .about-eco__steps strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 500;
  color: var(--paper);
}

.page-about .about-eco__steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 适用角色 ---------- */

.page-about .about-fit__grid {
  display: grid;
  gap: 16px;
}

.page-about .about-fit__card {
  padding: 22px 20px 24px;
  min-width: 0;
}

.page-about .about-fit__role {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-about .about-fit__card h3 {
  margin: 12px 0 8px;
  font-size: 17px;
  font-weight: 500;
  color: var(--paper);
}

.page-about .about-fit__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-fit__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-about .about-hero__strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-hero__fact {
    padding: 20px 18px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .page-about .about-fit__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 860px) {
  .page-about .about-claim__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

  .page-about .about-timeline__year {
    font-size: 23px;
  }

  .page-about .about-timeline__item {
    padding: 0 0 38px 32px;
  }

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

  .page-about .about-team__panel:nth-child(2) {
    margin-top: 24px;
  }

  .page-about .about-team__panel:nth-child(3) {
    margin-top: 48px;
  }

  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: clamp(28px, 4vw, 48px);
    align-items: start;
  }

  .page-about .about-eco__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(24px, 3.5vw, 44px);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-about .about-fit__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>

.page-about {
  --w: 1rem;
}