.page-about {
  --ab-line: rgba(199, 208, 218, .14);
  --ab-line-strong: rgba(199, 208, 218, .3);
  --ab-ink: #0B1A2E;
  background: var(--navy);
  color: var(--silver);
  overflow-x: clip;
  padding-bottom: 64px;
}

.page-about .breadcrumbs {
  padding-top: 22px;
}

.page-about .h1 {
  font-size: clamp(30px, 6vw, 58px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -.012em;
  color: var(--mist);
  margin: 12px 0 0;
  max-width: 20ch;
}

.page-about .h2 {
  font-size: clamp(23px, 4vw, 36px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -.008em;
  color: var(--mist);
  margin: 8px 0 0;
  max-width: 24ch;
}

.page-about .h3 {
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.36;
  font-weight: 700;
  color: var(--mist);
  margin: 0 0 8px;
}

.page-about .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .lede {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--silver);
  max-width: 62ch;
}

.page-about .prose p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--silver);
  max-width: 68ch;
}

.page-about .prose a,
.page-about .about-note a,
.page-about .cred__foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 30px 0 38px;
  border-bottom: 1px solid var(--ab-line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -60px -30% auto -30%;
  height: 340px;
  background:
    radial-gradient(560px 240px at 16% 0%, rgba(255, 106, 26, .16), transparent 70%),
    radial-gradient(520px 220px at 76% 16%, rgba(56, 225, 208, .12), transparent 72%);
  pointer-events: none;
}

.page-about .about-hero > * {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__stats {
  list-style: none;
  margin: 30px 0 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-line);
  border: 1px solid var(--ab-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .hero-stat {
  background: var(--navy-2);
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .hero-stat__num {
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: .02em;
  line-height: 1;
}

.page-about .hero-stat__label {
  font-size: 12.5px;
  color: var(--warm);
  letter-spacing: .04em;
}

.page-about .about-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 区块骨架 ---------- */
.page-about .about-block {
  padding: 46px 0;
  position: relative;
}

.page-about .about-block + .about-block {
  border-top: 1px solid var(--ab-line);
}

.page-about .about-block__head {
  margin-bottom: 26px;
}

.page-about .about-block--panel {
  background: var(--navy-2);
  border-radius: var(--r-lg);
  padding: 32px 20px 36px;
  margin: 12px 0;
  border-top: 0;
}

.page-about .about-block--teal {
  background: var(--teal);
  border-radius: var(--r-lg);
  padding: 34px 20px 36px;
  margin: 12px 0;
  border-top: 0;
}

.page-about .about-block--cream {
  background: var(--cream);
  color: var(--ab-ink);
  border-radius: var(--r-lg);
  padding: 34px 20px 38px;
  margin: 12px 0;
  border-top: 0;
}

.page-about .about-block--cream .eyebrow {
  color: var(--brick);
}

.page-about .about-block--cream .h2 {
  color: var(--ab-ink);
}

.page-about .about-block--cream .lede {
  color: rgba(11, 26, 46, .74);
}

/* ---------- 坐标方法 ---------- */
.page-about .about-block__split {
  display: grid;
  gap: 28px;
}

.page-about .coord-ladder {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.page-about .coord-step {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 2px 16px;
  align-items: center;
  padding: 16px 18px;
  background: var(--navy-2);
  border: 1px solid var(--ab-line);
  border-radius: var(--r-md);
  transition: border-color .22s ease, transform .22s ease;
}

.page-about .coord-step:hover {
  border-color: var(--orange);
  transform: translateX(3px);
}

.page-about .coord-step__num {
  grid-row: 1 / span 2;
  font-size: 30px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .02em;
  line-height: 1;
}

.page-about .coord-step__label {
  font-size: 16px;
  font-weight: 700;
  color: var(--mist);
}

.page-about .coord-step__desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--warm);
}

.page-about .coord-arrow {
  display: block;
  text-align: center;
  padding: 6px 0;
  color: var(--cyan);
  font-size: 15px;
  line-height: 1;
}

/* ---------- 时间轴 ---------- */
.page-about .tl {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), var(--cyan) 52%, rgba(199, 208, 218, .12));
  border-radius: 2px;
}

.page-about .tl__item {
  position: relative;
  padding: 0 0 30px 34px;
}

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

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--navy);
  border: 2px solid var(--cyan);
  animation: ab-pulse 1.8s ease-in-out infinite;
}

.page-about .tl__mark {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}

.page-about .tl__code {
  font-size: 21px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .03em;
  line-height: 1;
}

.page-about .tl__tag {
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--warm);
  text-transform: uppercase;
}

.page-about .tl__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--silver);
  max-width: 66ch;
}

.page-about .tl__more,
.page-about .crew__more {
  margin-top: 10px;
  border-top: 1px dashed var(--ab-line-strong);
  padding-top: 8px;
}

.page-about .tl__more summary,
.page-about .crew__more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-about .tl__more summary::-webkit-details-marker,
.page-about .crew__more summary::-webkit-details-marker {
  display: none;
}

.page-about .tl__more summary::before,
.page-about .crew__more summary::before {
  content: "+ ";
  color: var(--orange);
}

.page-about .tl__more[open] summary::before,
.page-about .crew__more[open] summary::before {
  content: "– ";
}

.page-about .tl__more p,
.page-about .crew__more p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--warm);
  max-width: 64ch;
}

.page-about .tl__figure {
  margin-top: 18px;
}

/* ---------- 图片容器 ---------- */
.page-about .ab-figure {
  margin: 0;
  border: 1px solid var(--ab-line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--navy-2);
}

.page-about .ab-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

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

.page-about .ab-figure--banner img {
  aspect-ratio: 2 / 1;
}

.page-about .ab-figure figcaption {
  padding: 12px 16px 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--warm);
  border-top: 1px solid var(--ab-line);
}

.page-about .ab-figure--wide {
  margin-top: 30px;
}

/* ---------- 流程 ---------- */
.page-about .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  position: relative;
}

.page-about .flow__step {
  position: relative;
  z-index: 1;
  background: var(--navy);
  border: 1px solid var(--ab-line);
  border-radius: var(--r-md);
  padding: 18px 18px 20px;
  transition: border-color .22s ease, background-color .22s ease;
}

.page-about .flow__step::before {
  content: "";
  display: block;
  width: 36px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--orange), var(--cyan));
  margin-bottom: 14px;
}

.page-about .flow__step:hover,
.page-about .flow__step:focus-within {
  border-color: var(--orange);
  background: var(--navy-2);
}

.page-about .flow__num {
  display: block;
  font-size: 12.5px;
  letter-spacing: .18em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-about .flow__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--mist);
}

.page-about .flow__text {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--warm);
}

.page-about .flow__time {
  display: inline-block;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--orange);
  border: 1px solid rgba(255, 106, 26, .38);
  border-radius: 999px;
  padding: 3px 10px;
}

.page-about .about-note {
  margin-top: 26px;
  padding: 18px 18px 16px;
  border-left: 3px solid var(--cyan);
  background: rgba(56, 225, 208, .06);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.page-about .about-note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--silver);
  max-width: 70ch;
}

/* ---------- 数据卡片 ---------- */
.page-about .data-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .data-card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 18px 16px 20px;
  background: rgba(11, 26, 46, .05);
  border: 1px solid rgba(11, 26, 46, .16);
  border-radius: var(--r-md);
  transition: border-color .22s ease, background-color .22s ease;
}

.page-about .data-card:hover,
.page-about .data-card:focus-within {
  border-color: var(--brick);
  background: rgba(11, 26, 46, .08);
}

.page-about .data-card__num {
  font-size: clamp(22px, 4.6vw, 36px);
  font-weight: 700;
  color: var(--ab-ink);
  letter-spacing: .01em;
  line-height: 1.05;
}

.page-about .data-card__label {
  font-size: 14px;
  font-weight: 700;
  color: rgba(11, 26, 46, .86);
}

.page-about .data-card__note {
  font-size: 13px;
  line-height: 1.65;
  color: rgba(11, 26, 46, .62);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity .22s ease, transform .22s ease;
}

.page-about .data-card:hover .data-card__note,
.page-about .data-card:focus-within .data-card__note {
  opacity: 1;
  transform: none;
}

.page-about .data-card--wide {
  grid-column: span 2;
}

/* ---------- 团队 ---------- */
.page-about .crew {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-about .crew__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px 14px;
  align-items: baseline;
}

.page-about .crew__role {
  font-size: 16px;
  font-weight: 700;
  color: var(--mist);
}

.page-about .crew__count {
  font-size: 14.5px;
  color: var(--orange);
  letter-spacing: .04em;
}

.page-about .crew__track {
  grid-column: 1 / -1;
  display: block;
  height: 10px;
  border-radius: 999px;
  background: var(--navy-2);
  border: 1px solid var(--ab-line);
  overflow: hidden;
}

.page-about .crew__fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--orange), var(--cyan));
}

.page-about .crew__fill--edit { width: 44%; }
.page-about .crew__fill--data { width: 28%; }
.page-about .crew__fill--audit { width: 19%; }
.page-about .crew__fill--tech { width: 9%; }

.page-about .crew__more {
  grid-column: 1 / -1;
}

/* ---------- 合作与资质 ---------- */
.page-about .eco-grid {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.page-about .eco-card {
  padding: 20px 18px 22px;
  background: rgba(11, 26, 46, .34);
  border: 1px solid rgba(233, 238, 244, .16);
  border-radius: var(--r-md);
  transition: border-color .22s ease;
}

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

.page-about .eco-card__num {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: .02em;
  margin-bottom: 8px;
}

.page-about .eco-card__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--mist);
}

.page-about .eco-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(233, 238, 244, .76);
}

.page-about .cred {
  margin-top: 26px;
  border: 1px solid rgba(233, 238, 244, .16);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .cred__row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(233, 238, 244, .12);
}

.page-about .cred__row:last-child {
  border-bottom: 0;
}

.page-about .cred__k {
  font-size: 13px;
  color: var(--warm);
  letter-spacing: .04em;
}

.page-about .cred__v {
  font-size: 14px;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-about .cred__foot {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(233, 238, 244, .74);
  max-width: 66ch;
}

.page-about .cred__foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 收尾入口 ---------- */
.page-about .about-cta {
  padding: 44px 0 12px;
  border-top: 1px solid var(--ab-line);
  margin-top: 34px;
}

.page-about .about-cta__grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-about .cta-card {
  display: grid;
  gap: 8px;
  padding: 22px 20px 24px;
  border: 1px solid var(--ab-line);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(18, 38, 63, .9), rgba(11, 26, 46, .9));
  text-decoration: none;
  transition: border-color .22s ease, transform .22s ease;
}

.page-about .cta-card:hover,
.page-about .cta-card:focus-visible {
  border-color: var(--orange);
  transform: translateY(-3px);
}

.page-about .cta-card__k {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-about .cta-card__t {
  font-size: 18px;
  font-weight: 700;
  color: var(--mist);
}

.page-about .cta-card__d {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--warm);
}

@keyframes ab-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(56, 225, 208, .12); }
  50% { box-shadow: 0 0 0 9px rgba(56, 225, 208, .03); }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl__item::before { animation: none; }
  .page-about .coord-step,
  .page-about .flow__step,
  .page-about .data-card,
  .page-about .eco-card,
  .page-about .cta-card,
  .page-about .data-card__note { transition: none; }
  .page-about .cta-card:hover { transform: none; }
}

@media (hover: none) {
  .page-about .data-card__note {
    opacity: 1;
    transform: none;
  }
}

@media (min-width: 768px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-block {
    padding: 56px 0;
  }

  .page-about .about-block--panel,
  .page-about .about-block--teal,
  .page-about .about-block--cream {
    padding: 40px 30px 44px;
  }

  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .data-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

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

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

  .page-about .about-block__split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 40px;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-about .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .flow::before {
    content: "";
    position: absolute;
    z-index: 0;
    left: 4%;
    right: 4%;
    top: 46px;
    height: 1px;
    background: repeating-linear-gradient(90deg, rgba(56, 225, 208, .55) 0 8px, transparent 8px 16px);
  }

  .page-about .tl__item {
    display: grid;
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 6px 26px;
    padding-bottom: 38px;
  }

  .page-about .tl__mark {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

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

  .page-about .tl__figure {
    max-width: 560px;
  }

  .page-about .about-cta {
    padding-top: 56px;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>