.page-about {
  --about-gap: clamp(20px, 3vw, 40px);
  --about-section: clamp(56px, 9vw, 108px);
  color: var(--paper);
  background: var(--ink);
}

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

.page-about a:hover {
  text-decoration: underline;
}

.page-about .section {
  padding: var(--about-section) 0;
}

.page-about .section--tight {
  padding: calc(var(--about-section) * 0.7) 0 var(--about-section);
}

/* 面包屑 */
.page-about .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.06em;
  margin-bottom: 28px;
}

.page-about .breadcrumbs a {
  color: var(--muted);
}

.page-about .breadcrumbs a:hover {
  color: var(--cyan);
}

.page-about .breadcrumbs__sep {
  color: var(--line-strong);
}

.page-about .breadcrumbs [aria-current="page"] {
  color: var(--paper);
}

/* 首屏 */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(28, 42, 85, 0.55) 0%, rgba(11, 18, 48, 1) 60%),
    repeating-linear-gradient(0deg, transparent 0 47px, rgba(42, 58, 102, 0.35) 47px 48px),
    repeating-linear-gradient(90deg, transparent 0 47px, rgba(42, 58, 102, 0.35) 47px 48px),
    var(--ink);
  padding: clamp(32px, 5vw, 64px) 0 0;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  align-items: end;
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-about h1 {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(38px, 7.2vw, 84px);
  line-height: 1.06;
  letter-spacing: -0.015em;
  margin: 18px 0 24px;
  color: var(--paper);
}

.page-about .about-hero__lead {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
  max-width: 60ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

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

.page-about .about-hero__media figcaption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.08em;
  background: rgba(11, 18, 48, 0.82);
  padding: 4px 8px;
  border: 1px solid var(--line-strong);
}

/* 版本刻度 */
.page-about .about-scale {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
  padding: 22px 0 26px;
}

.page-about .about-scale__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 12px;
}

.page-about .about-scale__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-about .about-scale__ticks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-scale__tick {
  flex: 0 0 auto;
  min-width: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--line-strong);
  font-size: 11px;
  position: relative;
}

.page-about .about-scale__tick::before {
  content: "";
  width: 1px;
  height: 26px;
  background: var(--line-strong);
}

.page-about .about-scale__tick--current {
  color: var(--amber);
}

.page-about .about-scale__tick--current::before {
  background: var(--amber);
  height: 36px;
}

.page-about .about-scale__phases {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 18px;
  font-size: 12px;
  color: var(--muted);
}

.page-about .about-scale__phase {
  padding-left: 14px;
  position: relative;
}

.page-about .about-scale__phase::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--line-strong);
}

.page-about .about-scale__phase--current {
  color: var(--amber);
}

.page-about .about-scale__phase--current::before {
  background: var(--amber);
}

/* 横向信息带 */
.page-about .about-strip {
  background: var(--ink);
}

.page-about .ticker {
  position: relative;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
  display: flex;
  align-items: center;
}

.page-about .ticker__track {
  display: flex;
  gap: 48px;
  padding: 14px 24px;
  white-space: nowrap;
  animation: about-ticker-scroll 60s linear infinite;
}

.page-about .ticker.is-paused .ticker__track {
  animation-play-state: paused;
}

.page-about .ticker__item {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-about .ticker__item::before {
  content: "◆";
  color: var(--amber);
  margin-right: 10px;
  font-size: 9px;
}

.page-about .ticker__control {
  flex: 0 0 auto;
  border: none;
  border-left: 1px solid var(--line);
  background: var(--panel);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 0 14px;
  align-self: stretch;
  cursor: pointer;
  letter-spacing: 0.05em;
}

.page-about .ticker__control:hover {
  background: var(--line);
}

@keyframes about-ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* 定位 */
.page-about .about-position__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

.page-about .about-position h2,
.page-about .about-journey h2,
.page-about .about-audience h2,
.page-about .about-team h2,
.page-about .about-partners h2,
.page-about .about-reach h2,
.page-about .about-next h2 {
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 14px 0 20px;
  color: var(--paper);
}

.page-about .about-position__lead {
  font-size: 17px;
  line-height: 1.85;
  color: var(--paper);
  margin-bottom: 18px;
}

.page-about .about-position__body p {
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-position__points {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-position__points li {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.page-about .about-position__points .mono {
  color: var(--cyan);
  font-size: 11px;
}

.page-about .about-position__points strong {
  font-size: 17px;
  color: var(--paper);
}

.page-about .about-position__points p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* 版本路径 */
.page-about .about-journey {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-journey__head p {
  color: var(--muted);
  line-height: 1.85;
  max-width: 72ch;
}

.page-about .about-journey__list {
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-left: 1px solid var(--line);
}

.page-about .about-journey__step {
  position: relative;
  padding: 22px 0 22px 28px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 240ms var(--ease), transform 240ms var(--ease);
}

.page-about.js .about-journey__step { opacity: 0; }
.page-about .about-journey__step.is-visible { opacity: 1; transform: none; }

.page-about .about-journey__step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 30px;
  width: 9px;
  height: 9px;
  background: var(--line-strong);
  border: 1px solid var(--ink-2);
}

.page-about .about-journey__step--current::before {
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 179, 71, 0.14);
}

.page-about .about-journey__num {
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-about .about-journey__step h3 {
  font-family: var(--font-cn);
  font-size: 20px;
  color: var(--paper);
  margin: 0 0 6px;
}

.page-about .about-journey__step p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
  font-size: 15px;
}

/* 服务对象 */
.page-about .about-audience__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 36px;
}

.page-about .about-audience__item {
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: 24px;
  position: relative;
  transition: border-color 160ms var(--ease);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 200ms var(--ease), transform 200ms var(--ease), border-color 160ms var(--ease);
}

.page-about.js .about-audience__item { opacity: 0; }
.page-about .about-audience__item.is-visible { opacity: 1; transform: none; }

.page-about .about-audience__item:hover {
  border-color: var(--cyan);
}

.page-about .about-audience__item .mono {
  font-size: 11px;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.page-about .about-audience__item h3 {
  font-family: var(--font-cn);
  font-size: 20px;
  color: var(--paper);
  margin: 12px 0 10px;
  line-height: 1.35;
}

.page-about .about-audience__item p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* 团队 */
.page-about .about-team {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-team__head p {
  color: var(--muted);
  line-height: 1.85;
  max-width: 70ch;
}

.page-about .about-team__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  margin-top: 36px;
}

.page-about .about-team__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink);
  position: relative;
  aspect-ratio: 9 / 7;
  overflow: hidden;
}

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

.page-about .about-team__media figcaption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.08em;
  background: rgba(11, 18, 48, 0.82);
  padding: 4px 8px;
  border: 1px solid var(--line-strong);
}

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

.page-about .about-team__lane {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  padding: 20px 22px;
}

.page-about .about-team__lane:nth-child(2) {
  background: var(--ink);
  border-left-color: var(--amber);
}

.page-about .about-team__lane:nth-child(3) {
  border-left-color: var(--ok);
}

.page-about .about-team__lane .mono {
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-about .about-team__lane:nth-child(2) .mono {
  color: var(--amber);
}

.page-about .about-team__lane:nth-child(3) .mono {
  color: var(--ok);
}

.page-about .about-team__lane h3 {
  font-family: var(--font-cn);
  font-size: 20px;
  color: var(--paper);
  margin: 8px 0 10px;
}

.page-about .about-team__lane p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* 合作与荣誉 */
.page-about .about-partners__head p {
  color: var(--muted);
  line-height: 1.85;
  max-width: 68ch;
}

.page-about .about-partners__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 36px;
}

.page-about .about-partners__stat {
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.page-about .about-partners__stat .mono {
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-about .about-partners__stat strong {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(40px, 5.4vw, 64px);
  line-height: 1;
  color: var(--paper);
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-about .about-partners__stat strong span {
  font-size: 0.42em;
  color: var(--amber);
  font-weight: 700;
}

.page-about .about-partners__stat p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .about-partners__stat--big {
  background: var(--panel);
}

.page-about .about-partners__stat--big strong {
  color: var(--amber);
}

.page-about .about-partners__stat--wide {
  border-left: 2px solid var(--cyan);
}

/* 服务覆盖 */
.page-about .about-reach {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-reach__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  align-items: center;
}

.page-about .about-reach__copy p {
  color: var(--muted);
  line-height: 1.85;
}

.page-about .about-reach__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-reach__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
}

.page-about .about-reach__list .mono {
  color: var(--amber);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.page-about .about-reach__list strong {
  margin-left: auto;
  color: var(--paper);
  font-family: var(--font-cn);
  font-size: 18px;
}

.page-about .about-reach__contact {
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.9;
}

.page-about .about-reach__contact .mono {
  display: block;
  color: var(--cyan);
  margin-bottom: 4px;
  letter-spacing: 0.06em;
}

.page-about .about-reach__map {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink);
  aspect-ratio: 2 / 1;
  overflow: hidden;
}

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

.page-about .about-reach__map figcaption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.08em;
  background: rgba(11, 18, 48, 0.82);
  padding: 4px 8px;
  border: 1px solid var(--line-strong);
}

/* 下一步 */
.page-about .about-next {
  background:
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
}

.page-about .about-next__head p {
  color: var(--muted);
  line-height: 1.85;
  max-width: 66ch;
}

.page-about .about-next__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
  margin-top: 32px;
}

.page-about .about-next__link {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 18px;
  row-gap: 4px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  color: var(--paper);
  transition: color 160ms var(--ease), padding-left 160ms var(--ease);
}

.page-about .about-next__link:hover {
  color: var(--cyan);
  padding-left: 8px;
  text-decoration: none;
}

.page-about .about-next__link .mono {
  grid-row: 1 / span 2;
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 0.08em;
  align-self: start;
  padding-top: 3px;
}

.page-about .about-next__link strong {
  font-family: var(--font-cn);
  font-size: 19px;
  font-weight: 800;
}

.page-about .about-next__link span:last-child {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.page-about .about-next__note {
  margin-top: 28px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.85;
  padding: 18px 20px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-about .about-next__note .mono {
  display: block;
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

/* 响应式 */
@media (min-width: 720px) {
  .page-about .about-position__points li {
    grid-template-columns: 140px 1fr;
    grid-template-rows: auto auto;
    align-items: baseline;
    column-gap: 20px;
  }
  .page-about .about-position__points .mono {
    grid-row: 1 / span 2;
  }
  .page-about .about-position__points strong,
  .page-about .about-position__points p {
    grid-column: 2;
  }

  .page-about .about-partners__stats {
    grid-template-columns: 1.1fr 0.9fr;
  }
  .page-about .about-partners__stat--wide {
    grid-column: 1 / -1;
  }

  .page-about .about-next__links {
    grid-template-columns: 1fr 1fr;
  }
  .page-about .about-next__link:nth-child(2n) {
    border-left: 1px solid var(--line);
    padding-left: 22px;
  }
  .page-about .about-next__link:nth-child(2n):hover {
    padding-left: 30px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 48px;
  }

  .page-about .about-scale__tick {
    flex: 1 1 0;
    min-width: 0;
  }

  .page-about .about-position__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 48px;
  }

  .page-about .about-journey__list {
    margin-left: 40px;
  }

  .page-about .about-journey__step {
    grid-template-columns: 140px 1fr;
    column-gap: 32px;
    align-items: baseline;
    padding-left: 36px;
  }
  .page-about .about-journey__step::before {
    top: 30px;
  }

  .page-about .about-audience__grid {
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: 1fr;
    gap: 16px;
  }
  .page-about .about-audience__item:nth-child(1) { grid-column: span 4; }
  .page-about .about-audience__item:nth-child(2) { grid-column: span 2; margin-top: 28px; }
  .page-about .about-audience__item:nth-child(3) { grid-column: span 2; margin-top: -28px; }
  .page-about .about-audience__item:nth-child(4) { grid-column: span 4; }

  .page-about .about-team__body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: start;
  }
  .page-about .about-team__lanes {
    padding-top: 12px;
  }
  .page-about .about-team__lane:nth-child(2) {
    margin-left: 32px;
  }
  .page-about .about-team__lane:nth-child(3) {
    margin-left: 64px;
  }

  .page-about .about-partners__stats {
    grid-template-columns: 1.3fr 1fr 1.4fr;
  }
  .page-about .about-partners__stat--wide {
    grid-column: auto;
  }

  .page-about .about-reach__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
  }

  .page-about .about-next__links {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-next__link {
    border-left: 1px solid var(--line);
    padding-left: 20px;
    padding-right: 12px;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    row-gap: 8px;
  }
  .page-about .about-next__link:first-child {
    border-left: none;
    padding-left: 0;
  }
  .page-about .about-next__link:nth-child(2n) {
    border-left: 1px solid var(--line);
    padding-left: 20px;
  }
  .page-about .about-next__link .mono {
    grid-row: auto;
  }
}
<<<END>>>