.page-about {
  --body-ink: #3a4150;
  --axis-w: 216px;
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumbs {
  padding: clamp(14px, 2.4vw, 22px) 0 0;
  font-size: 13px;
  color: var(--muted);
}
.page-about .breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
}
.page-about .breadcrumbs li {
  display: inline-flex;
  align-items: center;
}
.page-about .breadcrumbs li + li::before {
  content: "／";
  margin: 0 6px 0 2px;
  color: var(--sand);
}
.page-about .breadcrumbs a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-about .breadcrumbs a:hover {
  color: var(--blue);
  border-bottom-color: var(--sand);
}
.page-about .breadcrumbs [aria-current="page"] {
  color: var(--muted);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  margin-top: clamp(14px, 2.6vw, 26px);
  padding: clamp(34px, 6.5vw, 84px) 0 clamp(38px, 6.5vw, 82px);
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  right: -18%;
  top: -34%;
  width: 82%;
  height: 168%;
  background: linear-gradient(155deg, var(--blue) 0%, #08265c 58%, #0a1c42 100%);
  transform: rotate(-11deg);
  pointer-events: none;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(
    90deg,
    var(--orange) 0 18%,
    var(--sand) 18% 42%,
    var(--blue) 42% 72%,
    rgba(201, 211, 232, 0.35) 72% 100%
  );
}
.page-about .hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: end;
}
.page-about .hero-lead h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 6.6vw, 62px);
  line-height: 1.06;
  letter-spacing: 0.01em;
  margin: 14px 0 0;
  color: var(--paper);
}
.page-about .hero-lede {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 17px;
  line-height: 1.82;
  color: rgba(247, 245, 240, 0.82);
}
.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}
.page-about .hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(201, 211, 232, 0.22);
  border: 1px solid rgba(201, 211, 232, 0.22);
}
.page-about .hero-stat {
  background: rgba(17, 19, 24, 0.72);
  padding: 15px 14px 17px;
  min-width: 0;
}
.page-about .hero-stat .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(28px, 4.4vw, 42px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-about .hero-stat .stat-value .unit {
  font-size: 0.5em;
  margin-left: 3px;
  color: var(--sand);
}
.page-about .hero-stat--accent .stat-value {
  color: var(--orange);
}
.page-about .hero-stat-label {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--sand);
}

/* ---------- 时间轴区 ---------- */
.page-about .axis-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}
.page-about .axis,
.page-about .axis-body {
  min-width: 0;
}
.page-about .axis-label {
  margin: 0 0 12px;
  color: var(--muted);
}
.page-about .axis-list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.page-about .axis-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 13.5px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--ink);
  background: var(--stack);
  border: 1px solid var(--grid);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.page-about .axis-link:hover,
.page-about .axis-link:focus-visible {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--paper);
}
.page-about .axis-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--sand);
}
.page-about .axis-link:hover .axis-num {
  color: var(--paper);
}

.page-about .axis-body h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.14;
  margin: 0;
}
.page-about .section-lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.82;
  color: var(--body-ink);
}

.page-about .journey-media {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  position: relative;
  aspect-ratio: 10 / 7;
  overflow: hidden;
  border: var(--line);
  box-shadow: 9px 9px 0 var(--stack);
}
.page-about .journey-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .stages {
  list-style: none;
  margin: clamp(26px, 3.8vw, 40px) 0 0;
  padding: 0;
}
.page-about .stage {
  position: relative;
  padding: 0 0 clamp(28px, 4.4vw, 50px) clamp(36px, 5vw, 50px);
}
.page-about .stage::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 24px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--sand), rgba(214, 167, 92, 0.12));
}
.page-about .stage:last-child {
  padding-bottom: 0;
}
.page-about .stage:last-child::before {
  display: none;
}
.page-about .stage-node {
  position: absolute;
  left: 0;
  top: 5px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--sand);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}
.page-about .stage:hover .stage-node,
.page-about .stage:focus-within .stage-node {
  background: var(--orange);
  border-color: var(--orange);
  transform: scale(1.18);
}
.page-about .stage-num {
  margin: 0 0 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--sand);
}
.page-about .stage h3 {
  margin: 0 0 10px;
  font-size: clamp(18px, 2.5vw, 23px);
  line-height: 1.36;
  font-weight: 800;
  color: var(--ink);
}
.page-about .stage p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.82;
  color: var(--body-ink);
}
.page-about .stage-extra {
  margin: 0;
  padding: 9px 14px 9px 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--stack);
  border-left: 3px solid var(--orange);
}

/* ---------- 团队 ---------- */
.page-about .team {
  border-top: 1px solid var(--grid);
}
.page-about .team-grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}
.page-about .team-copy {
  min-width: 0;
}
.page-about .team-copy h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.14;
  margin: 12px 0 0;
}
.page-about .crew {
  list-style: none;
  margin: clamp(22px, 3.2vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-about .crew-item {
  background: var(--paper);
  border: var(--line);
  padding: 14px 16px 16px;
  box-shadow: 4px 4px 0 var(--stack);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.page-about .crew-item:hover,
.page-about .crew-item:focus-within {
  transform: translate(-2px, -2px);
  border-color: var(--ink);
  box-shadow: 7px 7px 0 var(--sand);
}
.page-about .crew-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
}
.page-about .crew-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 30px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.page-about .crew-name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.page-about .crew-bar {
  display: block;
  position: relative;
  height: 8px;
  margin: 11px 0 12px;
  background: var(--stack);
}
.page-about .crew-bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--share, 0%);
  background: var(--blue);
  transition: width var(--dur) var(--ease);
}
.page-about .crew-edit {
  --share: 42.9%;
}
.page-about .crew-verify {
  --share: 21.4%;
}
.page-about .crew-verify .crew-bar::after {
  background: var(--orange);
}
.page-about .crew-care {
  --share: 19%;
}
.page-about .crew-care .crew-bar::after {
  background: var(--sand);
}
.page-about .crew-tech {
  --share: 16.7%;
}
.page-about .crew-tech .crew-bar::after {
  background: var(--panel);
}
.page-about .crew-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--body-ink);
}
.page-about .team-media {
  margin: 0;
  position: relative;
  aspect-ratio: 8 / 5;
  overflow: hidden;
  border: var(--line);
  box-shadow: 10px 10px 0 var(--blue);
}
.page-about .team-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 核定流程（深色区） ---------- */
.page-about .about-verify {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(42px, 7vw, 88px) 0;
  margin-top: clamp(30px, 5vw, 62px);
}
.page-about .about-verify::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: min(46%, 520px);
  height: 4px;
  background: var(--sand);
}
.page-about .about-verify h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(25px, 4.4vw, 40px);
  line-height: 1.16;
  margin: 12px 0 0;
  color: var(--paper);
  max-width: 24ch;
}
.page-about .approve-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(24px, 3.6vw, 38px);
}
.page-about .approve-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .approve-step {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid rgba(201, 211, 232, 0.2);
}
.page-about .approve-step:first-child {
  border-top: 2px solid var(--sand);
}
.page-about .approve-step:last-child {
  padding-bottom: 0;
}
.page-about .approve-step-n {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--sand);
  padding-top: 4px;
}
.page-about .approve-step h3 {
  margin: 0 0 7px;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}
.page-about .approve-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 245, 240, 0.72);
}
.page-about .approve-quote {
  margin: 0;
  padding: clamp(20px, 3.2vw, 32px);
  background: var(--panel);
  border-left: 4px solid var(--orange);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}
.page-about .approve-quote footer {
  display: block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-style: normal;
  letter-spacing: 0.1em;
  color: var(--sand);
}

/* ---------- 服务网络 ---------- */
.page-about .network {
  border-top: 1px solid var(--grid);
}
.page-about .net-grid {
  display: grid;
  gap: clamp(26px, 4vw, 50px);
}
.page-about .net-copy {
  min-width: 0;
}
.page-about .net-copy h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(25px, 4.4vw, 38px);
  line-height: 1.16;
  margin: 12px 0 0;
}
.page-about .net-copy p + p {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--body-ink);
}
.page-about .inline-link {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 2px solid var(--sand);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-about .inline-link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}
.page-about .net-media {
  margin: 0;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: var(--line);
  box-shadow: 10px 10px 0 var(--sand);
}
.page-about .net-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-about .net-stats {
  list-style: none;
  margin: clamp(22px, 3.2vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}
.page-about .net-stat {
  border-top: 3px solid var(--blue);
  padding-top: 12px;
}
.page-about .net-stat b {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(26px, 3.6vw, 36px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.page-about .net-stat span {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 荣誉 ---------- */
.page-about .about-honor {
  background: var(--stack);
}
.page-about .honor-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}
.page-about .honor-lead h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(25px, 4.4vw, 38px);
  line-height: 1.16;
  margin: 12px 0 0;
}
.page-about .honor-lead p {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--body-ink);
}
.page-about .honor-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  align-content: start;
}
.page-about .honor-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 15px 0 15px 14px;
  border-left: 3px solid var(--sand);
  border-bottom: 1px solid rgba(17, 19, 24, 0.14);
  transition: border-left-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-about .honor-item:hover {
  border-left-color: var(--orange);
  background: rgba(247, 245, 240, 0.7);
}
.page-about .honor-k {
  font-size: 14.5px;
  color: var(--ink);
}
.page-about .honor-v {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--blue);
}

/* ---------- 结尾入口 ---------- */
.page-about .about-cta {
  position: relative;
  background: var(--blue);
  color: var(--paper);
  padding: clamp(38px, 6vw, 74px) 0;
  margin-top: clamp(4px, 1vw, 10px);
}
.page-about .about-cta::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--sand) 0 34%, var(--orange) 34% 52%, transparent 52%);
}
.page-about .about-cta-inner h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.16;
  margin: 0;
  color: var(--paper);
  max-width: 22ch;
}
.page-about .about-cta-inner p {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: rgba(247, 245, 240, 0.82);
}
.page-about .cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 700px) {
  .page-about .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .crew {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .approve-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 980px) {
  .page-about .hero-inner {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.9fr);
    align-items: end;
  }

  .page-about .axis-grid {
    grid-template-columns: var(--axis-w) minmax(0, 1fr);
    gap: clamp(34px, 5vw, 76px);
    align-items: start;
  }
  .page-about .axis {
    position: sticky;
    top: 92px;
  }
  .page-about .axis-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--grid);
  }
  .page-about .axis-link {
    width: 100%;
    background: transparent;
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    padding: 10px 10px 10px 12px;
    font-size: 14px;
  }
  .page-about .axis-link:hover,
  .page-about .axis-link:focus-visible {
    background: transparent;
    color: var(--blue);
    border-left-color: var(--sand);
    padding-left: 18px;
  }
  .page-about .axis-link:hover .axis-num {
    color: var(--orange);
  }

  .page-about .team-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }
  .page-about .team-media {
    position: sticky;
    top: 92px;
  }

  .page-about .net-grid {
    grid-template-columns: minmax(0, 0.68fr) minmax(0, 1.32fr);
    align-items: start;
  }
  .page-about .honor-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: center;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 620px) {
  .page-about .hero-lede,
  .page-about .section-lede {
    font-size: 16px;
  }
  .page-about .stage {
    padding-left: 30px;
  }
  .page-about .stage::before {
    left: 6px;
  }
  .page-about .stage-node {
    width: 13px;
    height: 13px;
  }
  .page-about .team-media,
  .page-about .net-media,
  .page-about .journey-media {
    box-shadow: 6px 6px 0 var(--stack);
  }
  .page-about .net-media {
    aspect-ratio: 3 / 4;
  }
  .page-about .approve-step {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 10px;
  }
  .page-about .cta-links .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}
<<<END>>>