.page-about {
  --rail-w: 128px;
  --about-glow: rgba(199, 255, 62, 0.12);
  --about-panel-soft: rgba(10, 47, 38, 0.62);
  background:
    radial-gradient(120% 50% at 84% 0%, rgba(199, 255, 62, 0.09), transparent 62%),
    linear-gradient(180deg, #041C16 0%, #051F18 55%, #041C16 100%);
  padding-bottom: clamp(38px, 6vw, 76px);
}

.page-about .about-hero {
  padding-top: clamp(26px, 5vw, 54px);
}

.page-about .breadcrumb {
  font-size: 13px;
  color: var(--muted);
}

.page-about .breadcrumb a {
  color: var(--lime);
  text-decoration: none;
}

.page-about .breadcrumb a:hover {
  color: var(--lime-dark);
}

/* ---------- 首屏拼贴 ---------- */
.page-about .hero-collage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  margin-top: clamp(16px, 3vw, 28px);
}

.page-about .hero-lead {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-about .hero-lead h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 60px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--ink);
}

.page-about .hero-lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.75;
  color: var(--muted);
}

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

.page-about .hero-figure {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  border: 1px solid var(--line);
  background: var(--panel);
  margin: 0;
}

.page-about .hero-figure img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 210px;
  object-fit: cover;
}

.page-about .hero-figure .media__caption {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  padding: 8px 12px;
  border-radius: var(--r-pill);
  background: rgba(2, 17, 14, 0.72);
  color: var(--ink);
  font-size: 12px;
  line-height: 1.5;
}

.page-about .hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(10, 47, 38, 0.94), rgba(10, 47, 38, 0.5));
}

.page-about .stat-num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(20px, 3.2vw, 28px);
  line-height: 1.1;
  color: var(--lime);
}

.page-about .stat-label {
  font-size: 12.5px;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-about .hero-collage {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr) minmax(0, 0.95fr);
    grid-template-areas:
      "lead lead figure"
      "stats stats figure";
    align-items: stretch;
    gap: clamp(16px, 2vw, 26px);
  }

  .page-about .hero-lead {
    grid-area: lead;
  }

  .page-about .hero-figure {
    grid-area: figure;
  }

  .page-about .hero-stats {
    grid-area: stats;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 章节通用 ---------- */
.page-about .about-section {
  padding-block: clamp(32px, 5.5vw, 68px);
}

.page-about .section-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 62ch;
  margin-bottom: clamp(16px, 3vw, 28px);
}

.page-about .section-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.2vw, 42px);
  line-height: 1.06;
  margin: 0;
  color: var(--ink);
}

.page-about .section-head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 起点 ---------- */
.page-about .origin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-about .origin-text p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink);
}

.page-about .origin-text p:last-child {
  margin-bottom: 0;
}

.page-about .origin-quote {
  margin: 0;
  padding: 20px 20px 20px 22px;
  border-left: 3px solid var(--lime);
  border-radius: 0 var(--r-lg) var(--r-lg) 0;
  background: linear-gradient(120deg, rgba(199, 255, 62, 0.09), rgba(10, 47, 38, 0.4));
}

.page-about .origin-quote p {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.45;
  color: var(--ink);
}

.page-about .origin-quote cite {
  font-style: normal;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

@media (min-width: 860px) {
  .page-about .origin-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: clamp(20px, 3vw, 40px);
  }
}

/* ---------- 人群 ---------- */
.page-about .audience-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .audience-card {
  position: relative;
  padding: 18px 18px 20px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--about-panel-soft);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .audience-card__num {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.page-about .audience-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-about .audience-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

@media (min-width: 780px) {
  .page-about .audience-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 1120px) {
  .page-about .audience-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .audience-card:nth-child(2),
  .page-about .audience-card:nth-child(4) {
    margin-top: 30px;
  }
}

/* ---------- 服务主线 ---------- */
.page-about .pillar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .pillar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 4px 14px;
  padding: 18px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(10, 47, 38, 0.9), rgba(4, 28, 22, 0.7));
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-about .pillar:hover {
  border-color: var(--lime-dark);
  transform: translateY(-2px);
}

.page-about .pillar__num {
  grid-row: 1 / span 2;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 26px;
  line-height: 1;
  color: var(--lime);
  opacity: 0.85;
}

.page-about .pillar h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  color: var(--ink);
}

.page-about .pillar p {
  grid-column: 2;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .pillar__link {
  grid-column: 2;
  margin-top: 4px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(199, 255, 62, 0.35);
  align-self: start;
  justify-self: start;
}

.page-about .pillar__link:hover {
  color: var(--lime-dark);
  border-bottom-color: var(--lime-dark);
}

@media (min-width: 900px) {
  .page-about .pillar-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ---------- 时间线 ---------- */
.page-about .timeline-banner {
  margin: 0 0 clamp(20px, 3.5vw, 34px);
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  position: relative;
}

.page-about .timeline-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 260px;
  object-fit: cover;
}

.page-about .timeline-banner .media__caption {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  background: rgba(2, 17, 14, 0.75);
  font-size: 12px;
  color: var(--ink);
}

.page-about .timeline {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 3vw, 30px);
}

.page-about .timeline-rail .eyebrow {
  display: block;
  margin-bottom: 10px;
}

.page-about .rail-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .rail-link {
  display: inline-block;
  white-space: nowrap;
  padding: 7px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: rgba(10, 47, 38, 0.6);
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-about .rail-link:hover,
.page-about .rail-link:focus-visible {
  color: var(--bg);
  background: var(--lime);
  border-color: var(--lime);
}

.page-about .timeline-body .section-head {
  margin-bottom: clamp(16px, 2.6vw, 24px);
}

.page-about .version {
  position: relative;
  padding: 0 0 26px 20px;
  border-left: 2px solid var(--line);
}

.page-about .version::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px var(--about-glow);
}

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

.page-about .version__year {
  display: inline-block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 26px);
  color: var(--lime);
  letter-spacing: 0.03em;
}

.page-about .version h3 {
  margin: 4px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.3vw, 24px);
  line-height: 1.25;
  color: var(--ink);
}

.page-about .version p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
}

.page-about .version-more {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: rgba(2, 17, 14, 0.42);
}

.page-about .version-more summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--lime);
}

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

.page-about .version-more summary::after {
  content: "+";
  font-family: var(--font-num);
  font-size: 17px;
  line-height: 1;
  color: var(--amber);
}

.page-about .version-more[open] summary::after {
  content: "−";
}

.page-about .version-more p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-about .timeline {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .timeline-rail {
    position: sticky;
    top: clamp(84px, 14vh, 130px);
  }

  .page-about .rail-list {
    flex-direction: column;
    overflow: visible;
  }

  .page-about .rail-link {
    display: block;
    text-align: center;
  }
}

/* ---------- 团队 ---------- */
.page-about .team-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-about .team-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .team-stat {
  padding: 16px 14px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--about-panel-soft);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-about .team-stat:hover,
.page-about .team-stat:focus-within {
  border-color: var(--lime-dark);
  background: rgba(10, 47, 38, 0.92);
}

.page-about .team-stat__num {
  display: block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1;
  color: var(--lime);
}

.page-about .team-stat__label {
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}

.page-about .team-stat__role {
  display: block;
  margin-top: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.24s ease, opacity 0.24s ease, margin-top 0.24s ease;
}

.page-about .team-stat:hover .team-stat__role,
.page-about .team-stat:focus-within .team-stat__role {
  max-height: 80px;
  opacity: 1;
  margin-top: 6px;
}

@media (hover: none) {
  .page-about .team-stat__role {
    max-height: 80px;
    opacity: 1;
    margin-top: 6px;
  }
}

.page-about .team-figure {
  margin: 0;
  padding: 14px;
  border-radius: var(--r-xl);
  border: 1px solid var(--line);
  background: radial-gradient(90% 80% at 30% 20%, rgba(199, 255, 62, 0.08), transparent 60%), var(--panel);
}

.page-about .team-figure svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .team-figure figcaption {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--muted);
  text-align: center;
}

.page-about .partner-row {
  margin-top: clamp(20px, 3vw, 32px);
  padding: 20px;
  border-radius: var(--r-lg);
  border: 1px dashed var(--line);
  background: rgba(2, 17, 14, 0.35);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-about .partner-row__lead {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 70ch;
}

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

.page-about .partner-chips li {
  padding: 7px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: rgba(10, 47, 38, 0.75);
  font-size: 12.5px;
  color: var(--lime);
  font-family: var(--font-label);
  letter-spacing: 0.02em;
}

@media (min-width: 940px) {
  .page-about .team-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: clamp(20px, 3vw, 36px);
  }

  .page-about .team-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

/* ---------- 荣誉 ---------- */
.page-about .honor-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .honor-card {
  padding: 22px 20px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(255, 138, 61, 0.12), rgba(10, 47, 38, 0.55) 60%);
}

.page-about .honor-card__year {
  display: inline-block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 15px;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.page-about .honor-card h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.3vw, 23px);
  line-height: 1.25;
  color: var(--ink);
}

.page-about .honor-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

@media (min-width: 820px) {
  .page-about .honor-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 结尾行动区 ---------- */
.page-about .about-cta {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: clamp(22px, 4vw, 38px);
  border-radius: var(--r-xl);
  border: 1px solid var(--line);
  background:
    radial-gradient(80% 90% at 90% 10%, rgba(199, 255, 62, 0.22), transparent 60%),
    linear-gradient(150deg, #0A2F26, #041C16);
}

.page-about .about-cta h2 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 4vw, 38px);
  line-height: 1.08;
  color: var(--ink);
}

.page-about .about-cta p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 52ch;
}

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

@media (min-width: 860px) {
  .page-about .about-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
  }

  .page-about .about-cta__text {
    flex: 1 1 auto;
  }

  .page-about .about-cta__actions {
    flex: 0 0 auto;
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .pillar,
  .page-about .team-stat,
  .page-about .team-stat__role,
  .page-about .rail-link {
    transition: none;
  }

  .page-about .pillar:hover {
    transform: none;
  }
}
<<<PAGE_CSS_DONE>>>