.page-about {
  --about-line: rgba(61, 245, 206, .18);
  --about-line-soft: rgba(126, 155, 144, .26);
  --about-soft: #a6c4ba;
  background: var(--ink-night);
  color: var(--white);
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-about .about-hero {
  padding: clamp(20px, 4vw, 44px) 0 clamp(28px, 5vw, 64px);
}

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

.page-about .about-hero-copy {
  min-width: 0;
}

.page-about .about-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(32px, 6.2vw, 66px);
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--white);
}

.page-about .about-title em {
  font-style: normal;
  font-weight: 300;
  color: var(--neon);
}

.page-about .about-lede {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.9;
  color: var(--about-soft);
}

.page-about .about-stats {
  list-style: none;
  margin: 30px 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);
  border-radius: 14px;
  overflow: hidden;
}

.page-about .about-stats li {
  background: var(--ink-night);
  padding: 16px 14px;
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.6vw, 25px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--ice);
}

.page-about .about-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: .07em;
  line-height: 1.5;
  color: var(--mist);
}

.page-about .about-hero-figure {
  margin: 0;
  min-width: 0;
}

.page-about .about-hero-figure .media-frame {
  border: 1px solid var(--about-line);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.page-about .about-hero-figure img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-about .about-figure-cap {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .09em;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: clamp(28px, 5vw, 52px);
}

.page-about .about-jump a {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--about-line);
  border-radius: var(--radius-capsule);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ice);
  text-decoration: none;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-about .about-jump a:hover,
.page-about .about-jump a:focus-visible {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--ink-night);
}

.page-about .about-section {
  padding: clamp(40px, 7vw, 82px) 0;
}

.page-about .about-section--deep {
  background: var(--ink-deep);
}

.page-about .about-section--paper {
  background: var(--paper);
  color: var(--print-ink);
}

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

.page-about .about-rail {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--neon);
}

.page-about .about-rail-num {
  font-weight: 700;
}

.page-about .about-rail-label {
  color: var(--mist);
}

.page-about .about-section--paper .about-rail-label {
  color: #7a8a82;
}

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

.page-about .about-h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.22;
  letter-spacing: .01em;
  color: var(--white);
}

.page-about .about-section--paper .about-h2 {
  color: var(--print-ink);
}

.page-about .about-p {
  margin: 0 0 14px;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--about-soft);
}

.page-about .about-section--paper .about-p {
  color: #3b4a44;
}

.page-about .about-p--after {
  margin-top: 22px;
}

.page-about .about-inline-link {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-section--paper .about-inline-link {
  color: #a04a15;
}

/* 时间线 */
.page-about .about-years {
  margin-top: 26px;
  border-top: 1px solid var(--about-line);
}

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

.page-about .about-year summary {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) 26px;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  transition: color .2s ease;
}

.page-about .about-year summary::-webkit-details-marker {
  display: none;
}

.page-about .about-year summary:hover .about-year-title,
.page-about .about-year summary:focus-visible .about-year-title {
  color: var(--neon);
}

.page-about .about-year summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 4px;
}

.page-about .about-year-num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--neon);
}

.page-about .about-year-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(15.5px, 2vw, 19px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
  transition: color .2s ease;
}

.page-about .about-year-marker {
  position: relative;
  justify-self: end;
  width: 16px;
  height: 16px;
}

.page-about .about-year-marker::before,
.page-about .about-year-marker::after {
  content: "";
  position: absolute;
  background: var(--ice);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}

.page-about .about-year-marker::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-about .about-year-marker::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-about .about-year[open] .about-year-marker::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-about .about-year-body {
  padding: 0 0 20px;
}

.page-about .about-year-text {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--about-soft);
}

/* 内容编排 */
.page-about .about-cover {
  display: grid;
  gap: 26px;
}

.page-about .about-cover-figure,
.page-about .about-team-figure {
  margin: 0;
  min-width: 0;
}

.page-about .about-cover-figure .media-frame,
.page-about .about-team-figure .media-frame {
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid rgba(20, 33, 28, .16);
}

.page-about .about-cover-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-about .about-section--paper .about-figure-cap {
  color: #6b7a72;
}

.page-about .about-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
}

.page-about .about-chips li {
  padding: 7px 13px;
  border: 1px solid rgba(20, 33, 28, .22);
  border-radius: var(--radius-capsule);
  background: rgba(255, 255, 255, .38);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--print-ink);
}

.page-about .about-data-cards {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-data {
  position: relative;
  padding: 20px 16px 16px;
  border: 1px solid rgba(20, 33, 28, .16);
  border-radius: 14px;
  background: #fbf4e6;
  transition: transform .25s ease, border-color .25s ease;
}

.page-about .about-data::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 16px;
  width: 46px;
  height: 5px;
  border-radius: 0 0 3px 3px;
  background: var(--track-orange);
}

.page-about .about-data:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 107, 42, .55);
}

.page-about .about-data-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: .02em;
  color: #0f3b2e;
}

.page-about .about-data-label {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: #4a5b53;
}

/* 团队 */
.page-about .about-team {
  display: grid;
  gap: 26px;
  min-width: 0;
}

.page-about .about-team-figure img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.page-about .about-roster {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-roster li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr) 36px;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--about-soft);
}

.page-about .about-bar {
  display: block;
  height: 8px;
  border-radius: 99px;
  background: rgba(126, 155, 144, .22);
  overflow: hidden;
}

.page-about .about-fill {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--neon), var(--ice));
}

.page-about .about-fill-1 {
  width: 100%;
}

.page-about .about-fill-2 {
  width: 85%;
}

.page-about .about-fill-3 {
  width: 77%;
}

.page-about .about-roster-num {
  text-align: right;
  font-weight: 700;
  color: var(--ice);
}

/* 校验流程 */
.page-about .about-flow {
  list-style: none;
  margin: 26px 0 0;
  padding: 0 0 0 30px;
  position: relative;
}

.page-about .about-flow::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--neon), rgba(61, 245, 206, .06));
}

.page-about .about-flow li {
  position: relative;
  padding-bottom: 24px;
}

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

.page-about .about-flow li::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 4px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 1px solid var(--neon);
  background: var(--ink-deep);
}

.page-about .about-step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--track-orange);
}

.page-about .about-step-title {
  margin: 5px 0 5px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-about .about-step-text {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--about-soft);
}

/* 合作与认可 */
.page-about .about-partner-cards {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-pcard {
  padding: 20px 18px;
  border: 1px solid var(--about-line);
  border-radius: var(--radius-card);
  background: linear-gradient(160deg, rgba(16, 74, 58, .55), rgba(4, 26, 21, .25));
  transition: transform .25s ease, border-color .25s ease;
}

.page-about .about-pcard:hover {
  transform: translateY(-3px);
  border-color: rgba(61, 245, 206, .5);
}

.page-about .about-pcard .about-data-num {
  color: var(--neon);
}

.page-about .about-pcard .about-data-label {
  color: var(--about-soft);
}

/* 品牌主张 */
.page-about .about-claim {
  padding: clamp(44px, 8vw, 96px) 0;
  background: linear-gradient(180deg, var(--ink-night), var(--ink-deep));
  border-top: 1px solid var(--about-line);
}

.page-about .about-claim-title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(28px, 5.2vw, 54px);
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--white);
}

.page-about .about-claim-title em {
  font-style: normal;
  font-weight: 300;
  color: var(--ice);
}

.page-about .about-lede--claim {
  margin-top: 18px;
  max-width: 52ch;
}

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

@media (min-width: 640px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-data-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-year summary {
    grid-template-columns: 78px minmax(0, 1fr) 26px;
    gap: 18px;
    padding: 18px 0;
  }

  .page-about .about-year-body {
    padding-left: 96px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: end;
  }

  .page-about .about-row {
    grid-template-columns: 152px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-about .about-rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding-left: 14px;
    border-left: 1px solid var(--about-line);
  }

  .page-about .about-section--paper .about-rail {
    border-left-color: rgba(20, 33, 28, .18);
  }

  .page-about .about-cover {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: clamp(26px, 4vw, 48px);
    align-items: start;
  }

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

@media (min-width: 1100px) {
  .page-about .about-rail {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-data,
  .page-about .about-pcard,
  .page-about .about-year-marker::after,
  .page-about .about-year-title,
  .page-about .about-jump a {
    transition: none;
  }

  .page-about .about-data:hover,
  .page-about .about-pcard:hover {
    transform: none;
  }
}
<<<END>>>