.page-about {
  --ab-hair: rgba(44, 242, 206, 0.16);
  --ab-paper-line: rgba(16, 21, 28, 0.14);
  background: var(--c-deep);
  color: var(--c-paper);
  overflow-x: clip;
}

.page-about .section {
  position: relative;
  padding: clamp(56px, 9vw, 108px) 0;
}

.page-about .breadcrumbs a {
  color: var(--c-gray);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 11vw, 132px) 0 clamp(44px, 7vw, 84px);
  border-bottom: 1px solid var(--ab-hair);
  background:
    radial-gradient(120% 100% at 88% 4%, rgba(44, 242, 206, 0.14), transparent 58%),
    linear-gradient(115deg, rgba(16, 42, 82, 0.95) 0%, rgba(10, 24, 53, 0.35) 62%),
    var(--c-deep);
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: min(52%, 560px);
  pointer-events: none;
  background: linear-gradient(115deg, rgba(142, 34, 51, 0) 0%, rgba(142, 34, 51, 0.34) 100%);
  clip-path: polygon(40% 0, 100% 0, 100% 100%, 0 100%);
}

.page-about .ab-hero .container {
  position: relative;
  z-index: 1;
}

.page-about .ab-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-about .ab-hero-kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--c-cyan);
}

.page-about .ab-hero-title {
  margin: 18px 0 0;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7.2vw, 70px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-about .ab-hero-lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.75;
  color: rgba(243, 237, 224, 0.82);
}

.page-about .ab-hero-figures {
  list-style: none;
  margin: clamp(34px, 5vw, 56px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-hair);
  border: 1px solid var(--ab-hair);
}

.page-about .ab-hero-figures li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  padding: 18px 16px;
  background: rgba(10, 24, 53, 0.75);
}

.page-about .ab-fig-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-fig-unit {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-yellow);
}

.page-about .ab-fig-label {
  flex: 1 0 100%;
  font-size: 13px;
  color: var(--c-gray);
}

/* ---------- 章节头 ---------- */
.page-about .ab-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-about .ab-head .chapter-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

.page-about .ab-head .section-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-yellow);
}

.page-about .ab-head .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.4vw, 44px);
  line-height: 1.08;
  color: var(--c-white);
}

.page-about .ab-head-lede {
  margin: 6px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(243, 237, 224, 0.78);
}

/* ---------- 通用图片 ---------- */
.page-about .ab-figure {
  margin: 0 0 clamp(28px, 4vw, 48px);
}

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

/* ---------- 01 时间线 ---------- */
.page-about .ab-journey {
  background: linear-gradient(180deg, rgba(16, 42, 82, 0.5) 0%, rgba(10, 24, 53, 0.15) 100%);
}

.page-about .ab-road {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  display: grid;
  gap: 20px;
  border-left: 1px solid rgba(44, 242, 206, 0.24);
}

.page-about .ab-road-item {
  position: relative;
  padding: 20px 20px 22px;
  background: var(--c-paper);
  color: var(--c-ink);
  border-left: 3px solid var(--c-grid);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.page-about .ab-road-item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 26px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--c-deep);
  border: 2px solid var(--c-cyan);
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-about .ab-road-item:hover {
  transform: translateX(6px);
  border-left-color: var(--c-cyan);
  box-shadow: 8px 8px 0 rgba(44, 242, 206, 0.14);
}

.page-about .ab-road-item:hover::before {
  background: var(--c-cyan);
  transform: scale(1.2);
}

.page-about .ab-road-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-crimson);
}

.page-about .ab-road-title {
  margin: 10px 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 25px);
  line-height: 1.18;
  color: var(--c-ink);
}

.page-about .ab-road-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #2a323d;
}

/* ---------- 02 服务对象 ---------- */
.page-about .ab-aud-grid {
  display: grid;
  gap: 18px;
}

.page-about .ab-aud {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--c-grid);
  border-top: 2px solid var(--c-cyan);
  background: linear-gradient(180deg, rgba(16, 42, 82, 0.92) 0%, rgba(10, 24, 53, 0.92) 100%);
}

.page-about .ab-aud:nth-child(even) {
  border-top-color: var(--c-yellow);
}

.page-about .ab-aud h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.2;
  color: var(--c-white);
}

.page-about .ab-aud p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(243, 237, 224, 0.76);
}

/* ---------- 03 团队 ---------- */
.page-about .ab-teams {
  background: linear-gradient(180deg, rgba(16, 42, 82, 0.35) 0%, rgba(10, 24, 53, 0.9) 100%);
}

.page-about .ab-team-grid {
  display: grid;
  gap: 22px;
}

.page-about .ab-team {
  padding: clamp(22px, 3vw, 34px);
  background: var(--c-paper);
  color: var(--c-ink);
  border-left: 4px solid var(--c-cyan);
}

.page-about .ab-team--youth {
  border-left-color: var(--c-yellow);
}

.page-about .ab-team-tag {
  margin: 0;
}

.page-about .ab-team h3 {
  margin: 14px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.16;
  color: var(--c-ink);
}

.page-about .ab-team p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #2a323d;
}

.page-about .ab-team-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 18px 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  border-top: 1px solid var(--ab-paper-line);
}

.page-about .ab-team-list li {
  display: grid;
  gap: 4px;
}

.page-about .ab-team-list .data-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: #6d7686;
}

.page-about .ab-team-list strong {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  color: var(--c-ink);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-figure--youth {
  margin: 0;
}

/* ---------- 04 覆盖网络 ---------- */
.page-about .ab-net-grid {
  display: grid;
  gap: 28px;
}

.page-about .ab-chart {
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--c-grid);
  background: rgba(16, 42, 82, 0.45);
}

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

.page-about .ab-chart-note {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-gray);
}

.page-about .ab-net-copy p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(243, 237, 224, 0.8);
}

.page-about .ab-net-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .ab-net-list li {
  display: grid;
  gap: 8px;
  justify-items: start;
  padding-left: 16px;
  border-left: 1px solid var(--ab-hair);
  font-size: 15px;
  line-height: 1.72;
  color: rgba(243, 237, 224, 0.78);
}

/* ---------- 05 发布节奏 ---------- */
.page-about .ab-cadence {
  border-top: 1px solid var(--ab-hair);
  border-bottom: 1px solid var(--ab-hair);
  background: linear-gradient(180deg, rgba(16, 42, 82, 0.6) 0%, rgba(10, 24, 53, 0.25) 100%);
}

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

.page-about .ab-cadence-card {
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--c-grid);
  background: rgba(10, 24, 53, 0.62);
}

.page-about .ab-cadence-card--primary {
  border-color: rgba(44, 242, 206, 0.5);
  background: linear-gradient(150deg, rgba(44, 242, 206, 0.1) 0%, rgba(10, 24, 53, 0.8) 70%);
}

.page-about .ab-cadence-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(44px, 8vw, 82px);
  line-height: 0.9;
  color: var(--c-white);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-cadence-card--primary .ab-cadence-num {
  color: var(--c-cyan);
}

.page-about .ab-cadence-unit {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-yellow);
}

.page-about .ab-cadence-card p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: rgba(243, 237, 224, 0.78);
}

/* ---------- 06 运营理念 ---------- */
.page-about .ab-creed-grid {
  display: grid;
  gap: 30px;
}

.page-about .ab-creed-num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

.page-about .ab-creed-copy .section-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-yellow);
}

.page-about .ab-creed-copy .section-title {
  margin: 12px 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.08;
  color: var(--c-white);
}

.page-about .ab-creed-copy p {
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(243, 237, 224, 0.8);
}

.page-about .ab-creed-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .ab-figure--night {
  margin: 0;
}

/* ---------- 结尾邀约 ---------- */
.page-about .ab-cta {
  padding-bottom: clamp(64px, 10vw, 120px);
}

.page-about .ab-cta-inner {
  display: grid;
  gap: 22px;
  align-items: center;
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid rgba(44, 242, 206, 0.45);
  background: linear-gradient(115deg, rgba(44, 242, 206, 0.1) 0%, rgba(10, 24, 53, 0.5) 62%);
}

.page-about .ab-cta-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.15;
  color: var(--c-white);
}

.page-about .ab-cta-inner p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(243, 237, 224, 0.78);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .ab-hero-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-about .ab-road {
    padding-left: 34px;
  }

  .page-about .ab-road-item::before {
    left: -41px;
  }

  .page-about .ab-team-grid {
    grid-template-columns: 1.1fr 0.9fr;
    grid-template-rows: auto auto;
    align-items: start;
    gap: 26px;
  }

  .page-about .ab-team--data {
    grid-column: 1;
    grid-row: 1 / span 2;
    height: 100%;
  }

  .page-about .ab-figure--youth {
    grid-column: 2;
    grid-row: 1;
  }

  .page-about .ab-team--youth {
    grid-column: 2;
    grid-row: 2;
  }

  .page-about .ab-net-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 44px;
  }

  .page-about .ab-creed-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 48px;
  }
}

@media (min-width: 1040px) {
  .page-about .ab-aud-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .ab-cta-inner {
    grid-template-columns: 1fr auto;
  }
}
<<<END>>>