.page-about {
  --about-gap: 14px;
  --about-hairline: rgba(199, 204, 214, 0.16);
  --about-hairline-soft: rgba(199, 204, 214, 0.07);
  --about-tick: rgba(199, 204, 214, 0.22);
  overflow-x: clip;
}

.page-about .about-head {
  padding-top: 26px;
}

.page-about .breadcrumbs {
  margin-bottom: 18px;
}

/* ---------- 首屏框景 ---------- */
.page-about .about-head__frame {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background:
    radial-gradient(130% 100% at 92% -20%, rgba(57, 255, 136, 0.11), transparent 56%),
    radial-gradient(90% 90% at -5% 115%, rgba(58, 134, 255, 0.12), transparent 58%),
    var(--bg-zone);
  padding: clamp(24px, 5.2vw, 60px);
  box-shadow: var(--shadow-soft);
}

.page-about .about-head__frame::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to right,
    transparent 0 47px,
    var(--about-hairline-soft) 47px 48px
  );
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 42%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 42%);
}

.page-about .about-head__frame::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46px;
  height: 46px;
  border-left: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: linear-gradient(135deg, transparent 46%, rgba(57, 255, 136, 0.5) 47%, rgba(57, 255, 136, 0.5) 50%, transparent 51%);
  pointer-events: none;
}

.page-about .about-head__meta {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 22px;
}

.page-about .about-head__title {
  position: relative;
  max-width: 18ch;
  font-weight: 250;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0 0 20px;
}

.page-about .about-head__lead {
  position: relative;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  margin: 0 0 32px;
}

.page-about .about-head__stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--about-hairline);
  border: 1px solid var(--about-hairline);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-head__stat {
  background: rgba(13, 20, 36, 0.86);
  padding: 16px 14px;
}

.page-about .about-head__stat dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 8px;
}

.page-about .about-head__stat dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-about .about-head__stat .metric__value {
  font-size: clamp(24px, 4.4vw, 34px);
}

/* ---------- 品牌缘起 ---------- */
.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-about .about-origin__text .prose p {
  color: var(--ink);
}

.page-about .about-origin__points {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--about-hairline);
}

.page-about .about-origin__points li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid var(--about-hairline-soft);
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
}

.page-about .about-origin__points .idx {
  flex: none;
  margin-top: 2px;
  color: var(--green);
}

.page-about .about-origin__figure {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  margin: 0;
  overflow: hidden;
}

/* ---------- 能力卡片 ---------- */
.page-about .about-caps__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

.page-about .cap-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(20, 29, 49, 0.95), rgba(13, 20, 36, 0.95));
  padding: 22px 20px 20px;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-about .cap-card:hover,
.page-about .cap-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--green);
  background: linear-gradient(160deg, var(--panel-raised), rgba(13, 20, 36, 0.98));
  outline: none;
}

.page-about .cap-card:focus-visible {
  box-shadow: 0 0 0 2px var(--blue);
}

.page-about .cap-card__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--silver);
}

.page-about .cap-card__title {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 500;
  color: var(--white);
}

.page-about .cap-card__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  flex: 1;
}

.page-about .cap-card__tag {
  align-self: flex-start;
  margin-top: 4px;
}

/* ---------- 版本时间线 ---------- */
.page-about .about-timeline__figure {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  margin: 0 0 34px;
  overflow: hidden;
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-about .tl-node {
  position: relative;
  padding: 0 0 26px 26px;
  border-left: 1px solid var(--about-hairline);
  transition: border-color 0.22s var(--ease);
}

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

.page-about .tl-node::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 2px solid var(--green);
  box-shadow: 0 0 0 4px var(--green-soft);
  transition: background 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-about .tl-node:last-child::before {
  border-color: var(--orange);
  box-shadow: 0 0 0 4px var(--orange-soft);
}

.page-about .tl-node:hover::before,
.page-about .tl-node:focus-within::before {
  background: var(--green);
}

.page-about .tl-node__ver {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--silver);
  border: 1px solid var(--about-hairline);
  border-radius: var(--radius);
  padding: 3px 8px;
  margin-bottom: 10px;
}

.page-about .tl-node__title {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 500;
  color: var(--white);
}

.page-about .tl-node__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  max-width: 40ch;
}

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

.page-about .about-team__roles {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

.page-about .role-card {
  border: 1px solid var(--line);
  border-left: 2px solid var(--blue);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 20px;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-about .role-card:hover {
  transform: translateY(-3px);
  border-color: var(--blue);
  border-left-color: var(--green);
}

.page-about .role-card__num {
  display: block;
  font-size: 38px;
  line-height: 1;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 12px;
}

.page-about .role-card__name {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--white);
}

.page-about .role-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-about .about-team__flow {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(255, 122, 26, 0.08), transparent 60%),
    var(--bg-zone);
  padding: 24px 20px;
}

.page-about .flow-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--about-hairline);
  margin-bottom: 6px;
}

.page-about .flow-head__total {
  font-size: 13px;
  color: var(--silver);
}

.page-about .flow-head__total strong {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--white);
  margin-left: 4px;
}

.page-about .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .flow-list__item {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--about-hairline-soft);
}

.page-about .flow-list__item:last-child {
  border-bottom: none;
  padding-bottom: 4px;
}

.page-about .flow-list__time {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--silver);
  padding-top: 2px;
}

.page-about .flow-list__time--green {
  color: var(--green);
}

.page-about .flow-list__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-about .about-team__note {
  margin: 16px 0 0;
  font-size: 13px;
  color: var(--silver);
  padding-left: 12px;
  border-left: 2px solid var(--orange);
}

/* ---------- 服务覆盖 ---------- */
.page-about .about-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-about .about-reach__figure {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  margin: 0;
  overflow: hidden;
}

.page-about .about-reach__text .prose p {
  font-size: 15px;
}

.page-about .about-reach__text .prose strong {
  color: var(--white);
  font-weight: 600;
}

.page-about .reach-table {
  margin-top: 22px;
  border-top: 1px solid var(--about-hairline);
}

.page-about .reach-table .data-row {
  border-bottom: 1px solid var(--about-hairline-soft);
}

/* ---------- 合作与资质 ---------- */
.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

.page-about .partner-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(20, 29, 49, 0.94), rgba(13, 20, 36, 0.94));
  padding: 24px 20px;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-about .partner-card:hover {
  transform: translateY(-3px);
  border-color: var(--blue);
}

.page-about .partner-card__num {
  font-size: 52px;
  line-height: 1;
  font-weight: 600;
  color: var(--white);
  margin: 16px 0 6px;
}

.page-about .partner-card__name {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--silver);
}

.page-about .partner-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-about .honor-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-zone);
  padding: 24px 20px;
}

.page-about .honor-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-about .honor-list__item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid var(--about-hairline-soft);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

.page-about .honor-list__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-about .honor-list__mark {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  background: var(--green);
  transform: rotate(45deg);
}

.page-about .honor-list__mark--orange {
  background: var(--orange);
}

/* ---------- 下一步 ---------- */
.page-about .about-next__inner {
  border-top: 1px solid var(--about-hairline);
  padding-top: 34px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: end;
}

.page-about .about-next__title {
  margin: 10px 0 10px;
  font-weight: 300;
  color: var(--white);
}

.page-about .about-next__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
  max-width: 52ch;
}

.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-next__links .btn {
  flex: 1 1 auto;
  min-width: 140px;
  text-align: center;
}

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

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

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

@media (min-width: 900px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 44px;
  }

  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 44px;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 20px;
  }

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

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

  .page-about .about-timeline__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-about .tl-node {
    border-left: none;
    border-top: 1px solid var(--about-hairline);
    padding: 30px 16px 0 0;
  }

  .page-about .tl-node:last-child {
    border-top-color: var(--about-hairline);
    border-left-color: transparent;
    padding-bottom: 0;
  }

  .page-about .tl-node::before {
    left: 0;
    top: -5px;
  }

  .page-about .about-next__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 34px;
    align-items: center;
  }

  .page-about .about-next__links .btn {
    flex: 0 0 auto;
    min-width: 0;
  }
}

@media (min-width: 1080px) {
  .page-about .about-caps__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-caps__grid .cap-card:nth-child(1) {
    grid-column: span 2;
  }

  .page-about .about-caps__grid .cap-card:nth-child(1) .cap-card__body {
    max-width: 56ch;
  }

  .page-about .about-caps__grid .cap-card:nth-child(6) {
    grid-column: span 2;
  }

  .page-about .about-caps__grid .cap-card:nth-child(6) .cap-card__body {
    max-width: 56ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .cap-card,
  .page-about .role-card,
  .page-about .partner-card,
  .page-about .tl-node::before {
    transition: none;
  }

  .page-about .cap-card:hover,
  .page-about .cap-card:focus-visible,
  .page-about .role-card:hover,
  .page-about .partner-card:hover {
    transform: none;
  }
}
<<<END>>>