.page-about {
  display: block;
  background: var(--mist);
}

/* ---------- 封面 ---------- */

.page-about .about-cover {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.5vw, 56px) 0 clamp(42px, 6.5vw, 78px);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(52, 199, 160, 0.16) 0%, transparent 58%),
    radial-gradient(90% 70% at 0% 110%, rgba(201, 136, 76, 0.18) 0%, transparent 62%),
    linear-gradient(168deg, #0B2A45 0%, #123B5E 58%, #0d3350 100%);
  color: var(--paper);
}

.page-about .about-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(231, 188, 133, 0.075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(231, 188, 133, 0.075) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 38%, #000 88%, transparent 100%);
  mask-image: linear-gradient(to bottom, transparent 0%, #000 38%, #000 88%, transparent 100%);
}

.page-about .about-cover > .container {
  position: relative;
  z-index: 1;
}

.page-about .about-cover .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-about .about-cover .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(231, 188, 133, 0.55);
}

.page-about .about-cover .breadcrumb a {
  color: var(--copper-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(231, 188, 133, 0.35);
}

.page-about .about-cover .breadcrumb a:hover {
  border-bottom-color: var(--copper-soft);
}

.page-about .about-cover .breadcrumb [aria-current="page"] {
  color: rgba(247, 244, 238, 0.62);
}

.page-about .about-cover .eyebrow {
  margin: clamp(22px, 3vw, 34px) 0 0;
  color: var(--copper-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
}

.page-about .about-cover h1 {
  margin: 16px 0 0;
  max-width: 16em;
  font-size: clamp(32px, 5.6vw, 60px);
  line-height: 1.14;
  letter-spacing: -0.012em;
  color: #FBF8F2;
}

.page-about .about-lead {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 44em;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.9;
  color: #cfdbe4;
}

.page-about .cover-facts {
  display: grid;
  gap: 1px;
  margin: clamp(30px, 4.4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(201, 136, 76, 0.45);
}

.page-about .cover-facts li {
  padding: 18px 0 0;
  border-left: 1px solid rgba(201, 136, 76, 0.28);
  padding-left: 18px;
}

.page-about .cover-facts li:first-child {
  border-left: 0;
  padding-left: 0;
}

.page-about .fact-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--jade-bright);
}

.page-about .fact-unit {
  margin-left: 4px;
  font-size: 0.44em;
  letter-spacing: 0.06em;
  color: rgba(52, 199, 160, 0.75);
}

.page-about .fact-txt {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(247, 244, 238, 0.66);
}

/* ---------- 主体布局 ---------- */

.page-about .about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 44px);
  padding-block: clamp(32px, 5vw, 64px);
}

.page-about .year-rail {
  display: none;
  font-family: var(--font-mono);
}

.page-about .rail-eyebrow {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--stone);
  text-transform: uppercase;
}

.page-about .rail-eyebrow + .rail-eyebrow,
.page-about .toc-list + .rail-eyebrow,
.page-about .year-list + .rail-eyebrow {
  margin-top: 28px;
}

.page-about .year-list,
.page-about .toc-list {
  position: relative;
  margin: 0;
  padding: 0 0 0 16px;
  list-style: none;
}

.page-about .year-list::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(to bottom, var(--copper), rgba(201, 136, 76, 0.14));
}

.page-about .year-list li + li {
  margin-top: 14px;
}

.page-about .year-link {
  display: block;
  position: relative;
  text-decoration: none;
  color: var(--stone);
  transition: color 0.2s ease;
}

.page-about .year-link::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mist);
  border: 1px solid rgba(201, 136, 76, 0.65);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-about .year-link:hover,
.page-about .year-link:focus-visible {
  color: var(--ink);
}

.page-about .year-link:hover::before,
.page-about .year-link:focus-visible::before {
  background: var(--copper);
  border-color: var(--copper);
}

.page-about .year-num {
  display: block;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.page-about .year-txt {
  display: block;
  margin-top: 2px;
  font-family: var(--font-sans);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--stone);
}

.page-about .toc-list li + li {
  margin-top: 9px;
}

.page-about .toc-list a {
  display: block;
  font-family: var(--font-sans);
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--stone);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .toc-list a:hover,
.page-about .toc-list a:focus-visible {
  color: var(--copper);
}

/* ---------- 内容块 ---------- */

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

.page-about .flow-block {
  margin-bottom: clamp(16px, 2.4vw, 28px);
  padding: clamp(20px, 3.2vw, 38px);
  border-radius: var(--radius-l);
  scroll-margin-top: 96px;
}

.page-about .flow-block--paper {
  background: var(--paper);
  border: 1px solid rgba(11, 42, 69, 0.1);
  box-shadow: var(--shadow-soft);
}

.page-about .flow-block--ink {
  background: linear-gradient(155deg, #0B2A45 0%, #123B5E 68%, #10314f 100%);
  border: 1px solid rgba(201, 136, 76, 0.34);
  color: #dbe4eb;
}

.page-about .flow-block--moss {
  background: #E3E9E3;
  border: 1px solid rgba(140, 156, 144, 0.48);
}

.page-about .block-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 14px;
}

.page-about .block-idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--copper);
}

.page-about .block-title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 29px);
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.page-about .flow-block--ink .block-title {
  color: #F9F6F0;
}

.page-about .flow-block--moss .block-title {
  color: var(--ink);
}

.page-about .block-lead {
  margin: 14px 0 0;
  max-width: 44em;
  font-size: clamp(14.5px, 1.2vw, 16px);
  line-height: 1.88;
  color: var(--stone);
}

.page-about .flow-block--ink .block-lead {
  color: #b9c8d4;
}

.page-about .flow-block p a,
.page-about .flow-block li a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 109, 163, 0.4);
}

.page-about .flow-block--ink p a {
  color: var(--copper-soft);
  border-bottom-color: rgba(231, 188, 133, 0.45);
}

.page-about .flow-block p a:hover,
.page-about .flow-block li a:hover {
  border-bottom-color: currentColor;
}

/* ---------- 发展历程 ---------- */

.page-about .stage-list {
  position: relative;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .stage {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 0 0 clamp(20px, 2.8vw, 28px) 24px;
}

.page-about .stage::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--copper);
}

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

.page-about .stage-list > .stage + .stage::after {
  content: "";
  position: absolute;
  left: 5px;
  top: -10px;
  height: calc(100% - 8px);
  width: 1px;
  background: rgba(201, 136, 76, 0.3);
}

.page-about .stage-year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.3vw, 25px);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.2;
  color: var(--copper);
}

.page-about .stage-body h3 {
  margin: 0 0 6px;
  font-size: 16.5px;
  line-height: 1.5;
  color: var(--ink);
}

.page-about .stage-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #4f5c67;
}

.page-about .stage-body .stage-gain {
  margin-top: 8px;
  font-family: var(--font-kai);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--jade);
}

/* ---------- 通用图 ---------- */

.page-about .about-figure {
  margin: clamp(18px, 2.8vw, 28px) 0 0;
  overflow: hidden;
  border-radius: var(--radius-m);
  background: linear-gradient(135deg, rgba(18, 59, 94, 0.9), rgba(140, 156, 144, 0.5));
}

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

.page-about .about-figure--side {
  margin: 0;
}

/* ---------- 服务网络 ---------- */

.page-about .net-grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-about .net-item {
  padding: 16px 18px;
  border-radius: var(--radius-m);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(201, 136, 76, 0.26);
}

.page-about .net-item h3 {
  margin: 0 0 6px;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--copper-soft);
}

.page-about .net-item p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.8;
  color: #c3d1dc;
}

/* ---------- 培训 ---------- */

.page-about .train-metrics {
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 2.8vw, 26px);
}

.page-about .metric {
  padding: 18px 20px;
  border-radius: var(--radius-m);
  background: #fff;
  border: 1px solid rgba(11, 42, 69, 0.1);
  border-left: 3px solid var(--jade);
}

.page-about .metric--alt {
  border-left-color: var(--copper);
}

.page-about .metric-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(28px, 3.8vw, 40px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--jade);
}

.page-about .metric--alt .metric-num {
  color: var(--copper);
}

.page-about .metric-unit {
  margin-left: 4px;
  font-size: 0.4em;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-about .metric-label {
  margin: 10px 0 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.page-about .metric-note {
  margin: 6px 0 0;
  font-size: 13.4px;
  line-height: 1.78;
  color: var(--stone);
}

.page-about .step-bar {
  display: grid;
  gap: 10px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .step {
  padding: 14px 16px;
  border-radius: var(--radius-m);
  background: #fff;
  border: 1px solid rgba(11, 42, 69, 0.1);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.page-about .step:hover,
.page-about .step:focus-within {
  transform: translateY(-3px);
  border-color: var(--copper);
  box-shadow: 0 16px 30px -24px rgba(11, 42, 69, 0.9);
}

.page-about .step-idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--jade);
}

.page-about .step h4 {
  margin: 6px 0 4px;
  font-size: 14.5px;
  line-height: 1.45;
  color: var(--ink);
}

.page-about .step-meta {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--copper);
}

.page-about .step-detail {
  margin: 0;
  font-size: 13.2px;
  line-height: 1.72;
  color: var(--stone);
  opacity: 0.72;
  transition: opacity 0.22s ease;
}

.page-about .step:hover .step-detail,
.page-about .step:focus-within .step-detail {
  opacity: 1;
}

/* ---------- 档案 ---------- */

.page-about .record-grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 2.8vw, 26px);
}

.page-about .record {
  padding: 16px 18px;
  border-radius: var(--radius-m);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(201, 136, 76, 0.24);
}

.page-about .record h3 {
  margin: 0 0 6px;
  font-size: 15px;
  color: var(--copper-soft);
}

.page-about .record p {
  margin: 0;
  font-size: 13.6px;
  line-height: 1.8;
  color: #c3d1dc;
}

.page-about .record-foot {
  margin: clamp(18px, 2.6vw, 24px) 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(201, 136, 76, 0.32);
  font-family: var(--font-kai);
  font-size: 14.6px;
  line-height: 1.9;
  color: #ded1c0;
}

/* ---------- 质量关口 ---------- */

.page-about .gate-list {
  display: grid;
  gap: 12px;
  margin: clamp(20px, 2.8vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .gate {
  padding: 18px 20px;
  border-radius: var(--radius-m);
  background: var(--mist);
  border-top: 3px solid var(--blue);
}

.page-about .gate h3 {
  margin: 0 0 8px;
  font-size: 15.5px;
  color: var(--ink);
}

.page-about .gate p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: #4f5c67;
}

/* ---------- 仓储 ---------- */

.page-about .warehouse-split {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
  margin-top: clamp(18px, 2.8vw, 26px);
}

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

.page-about .wh-list li + li {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(201, 136, 76, 0.22);
}

.page-about .wh-list h3 {
  margin: 0 0 6px;
  font-size: 15px;
  color: var(--copper-soft);
}

.page-about .wh-list p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.85;
  color: #c3d1dc;
}

/* ---------- 岗位构成 ---------- */

.page-about .role-bar {
  display: flex;
  height: 26px;
  margin-top: clamp(20px, 2.8vw, 28px);
  border-radius: 999px;
  overflow: hidden;
  background: var(--mist);
  box-shadow: inset 0 0 0 1px rgba(11, 42, 69, 0.08);
}

.page-about .role-seg {
  display: block;
  height: 100%;
  transition: filter 0.22s ease;
}

.page-about .role-bar:hover .role-seg {
  filter: saturate(1.15) brightness(1.04);
}

.page-about .role-seg--field { flex: 640 1 0; background: var(--jade); }
.page-about .role-seg--dispatch { flex: 40 1 0; background: var(--blue); }
.page-about .role-seg--qc { flex: 30 1 0; background: var(--moss); }
.page-about .role-seg--cs { flex: 30 1 0; background: var(--copper); }

.page-about .role-legend {
  display: grid;
  gap: 10px;
  margin: clamp(16px, 2.4vw, 20px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .role-item {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 10px;
  padding: 12px 14px;
  border-radius: var(--radius-s);
  background: #fff;
  border: 1px solid rgba(11, 42, 69, 0.09);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-about .role-item:hover {
  border-color: var(--copper);
  transform: translateX(2px);
}

.page-about .role-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.page-about .role-dot--field { background: var(--jade); }
.page-about .role-dot--dispatch { background: var(--blue); }
.page-about .role-dot--qc { background: var(--moss); }
.page-about .role-dot--cs { background: var(--copper); }

.page-about .role-name {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
}

.page-about .role-count {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--stone);
  white-space: nowrap;
}

.page-about .role-note {
  grid-column: 2 / -1;
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--stone);
}

.page-about .partner-note {
  margin-top: clamp(20px, 2.8vw, 26px);
  padding-top: 18px;
  border-top: 1px solid rgba(11, 42, 69, 0.12);
}

.page-about .partner-note h3 {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--ink);
}

.page-about .partner-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.88;
  color: #4f5c67;
}

/* ---------- 三条规矩 ---------- */

.page-about .rule-list {
  display: grid;
  gap: 14px;
  margin: clamp(20px, 2.8vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .rule-list li {
  padding: 16px 18px;
  border-radius: var(--radius-m);
  background: rgba(247, 244, 238, 0.78);
  border-left: 3px solid var(--copper);
}

.page-about .rule-list h3 {
  margin: 0 0 7px;
  font-size: 15.5px;
  color: var(--ink);
}

.page-about .rule-idx {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--copper);
  vertical-align: 2px;
}

.page-about .rule-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.88;
  color: #4b5863;
}

/* ---------- 下一步 ---------- */

.page-about .about-next {
  padding: clamp(22px, 3.4vw, 38px);
  border-radius: var(--radius-l);
  background: var(--ink);
  color: #dbe4eb;
  border: 1px solid rgba(201, 136, 76, 0.4);
  position: relative;
  overflow: hidden;
}

.page-about .about-next::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 199, 160, 0.22), transparent 68%);
  pointer-events: none;
}

.page-about .about-next h2 {
  position: relative;
  margin: 0;
  font-size: clamp(20px, 2.5vw, 26px);
  color: #F9F6F0;
}

.page-about .about-next p {
  position: relative;
  margin: 12px 0 0;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.88;
  color: #b9c8d4;
}

.page-about .about-next-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* ---------- 桌面扩展 ---------- */

@media (min-width: 620px) {
  .page-about .cover-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .stage {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 2px 20px;
    padding-left: 26px;
  }

  .page-about .stage-year {
    padding-top: 1px;
  }
}

@media (min-width: 700px) {
  .page-about .net-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .record-grid,
  .page-about .train-metrics,
  .page-about .role-legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-about .gate-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .warehouse-split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

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

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

@media (min-width: 1000px) {
  .page-about .about-layout {
    grid-template-columns: 196px minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 3.4vw, 50px);
  }

  .page-about .year-rail {
    display: block;
    position: sticky;
    top: 28px;
    padding-right: 8px;
  }
}

@media (min-width: 1160px) {
  .page-about .step-bar {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 10px;
  }

  .page-about .cover-facts {
    max-width: 780px;
  }
}

/* ---------- 动效减弱 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-about .step,
  .page-about .role-item,
  .page-about .role-seg,
  .page-about .step-detail,
  .page-about .year-link,
  .page-about .year-link::before {
    transition: opacity 0.2s ease;
  }

  .page-about .step:hover,
  .page-about .step:focus-within,
  .page-about .role-item:hover {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>