.page-about {
  --about-band: clamp(48px, 6.5vw, 92px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  padding: 26px 0 clamp(44px, 6vw, 76px);
}
.page-about .about-hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-about .about-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .42;
}
.page-about .about-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(158deg, rgba(11,27,51,.96) 0%, rgba(19,43,74,.76) 54%, rgba(11,27,51,.98) 100%),
    radial-gradient(120% 90% at 88% 12%, rgba(47,217,197,.16), transparent 62%);
}
.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
}
.page-about .about-kicker {
  margin: clamp(26px, 4.5vw, 54px) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-about .about-kicker--dark {
  margin-top: 0;
  color: var(--clay);
}
.page-about .about-title {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(34px, 7.4vw, 78px);
  line-height: 1.06;
  letter-spacing: -.015em;
  color: var(--ivory);
}
.page-about .about-lede {
  max-width: 44ch;
  margin: 20px 0 0;
  font-size: clamp(15px, 1.9vw, 18px);
  line-height: 1.78;
  color: rgba(244,239,230,.84);
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 数据条 ---------- */
.page-about .about-figures {
  background: var(--ink);
  padding: 0 0 var(--about-band);
}
.page-about .about-figures-title {
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--haze);
}
.page-about .figure-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .figure {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 22px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-dark);
  background: linear-gradient(170deg, rgba(19,43,74,.92), rgba(11,27,51,.92));
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-about .figure::before {
  content: "";
  display: block;
  width: 34px;
  height: 3px;
  margin-bottom: 14px;
  border-radius: var(--pill);
  background: var(--cyan);
}
.page-about .figure--moss::before { background: var(--moss); }
.page-about .figure--clay::before { background: var(--clay); }
.page-about .figure--gold::before { background: var(--gold); }
.page-about .figure:hover,
.page-about .figure:focus-within {
  transform: translateY(-2px);
  border-color: var(--line-dark-strong);
}
.page-about .figure-num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 5.2vw, 42px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--ivory);
}
.page-about .figure-num em {
  font-style: normal;
  font-size: .56em;
  color: var(--cyan);
  margin-left: 2px;
}
.page-about .figure-unit {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--haze);
}
.page-about .figure-text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244,239,230,.72);
}

/* ---------- 通用标题 ---------- */
.page-about .about-h2 {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--ink);
}
.page-about .about-h2--light { color: var(--ivory); }
.page-about .about-p {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--rock);
}
.page-about .about-p--light { color: rgba(244,239,230,.8); }
.page-about .about-section-head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 46px);
}

/* ---------- 服务版图 ---------- */
.page-about .about-map {
  background: var(--ivory);
  padding: var(--about-band) 0;
}
.page-about .about-map-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}
.page-about .about-map-figure {
  margin: 0;
}
.page-about .region-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-about .region-item {
  display: grid;
  gap: 4px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-light);
  border-left: 3px solid var(--moss);
  background: rgba(112,143,106,.09);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-about .region-item:hover,
.page-about .region-item:focus-within {
  background: rgba(112,143,106,.18);
  border-left-color: var(--clay);
}
.page-about .region-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}
.page-about .region-note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 内容体系 ---------- */
.page-about .about-editorial {
  background: var(--midnight);
  padding: var(--about-band) 0;
}
.page-about .about-editorial .about-h2 { color: var(--ivory); }
.page-about .about-editorial .about-p { color: rgba(244,239,230,.8); }
.page-about .about-editorial .about-kicker--dark { color: var(--cyan); }
.page-about .about-editorial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}
.page-about .about-editorial-figure {
  margin: 0;
}
.page-about .about-editorial .media-caption {
  color: var(--haze);
}
.page-about .flow-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}
.page-about .flow-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--line-dark);
}
.page-about .flow-item:last-child {
  border-bottom: 1px solid var(--line-dark);
}
.page-about .flow-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--clay);
  padding-top: 3px;
}
.page-about .flow-title {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ivory);
}
.page-about .flow-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244,239,230,.74);
}

/* ---------- 移动端 ---------- */
.page-about .about-mobile {
  background: var(--ink);
  padding: var(--about-band) 0;
}
.page-about .about-mobile-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}
.page-about .step-list {
  margin: 26px 0 28px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-about .step-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 13px 16px;
  border-radius: var(--pill);
  border: 1px solid var(--line-dark);
  background: rgba(47,217,197,.07);
  font-size: 14px;
  line-height: 1.65;
  color: rgba(244,239,230,.86);
}
.page-about .step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}
.page-about .device-frame {
  width: min(240px, 68vw);
  margin: 0 auto;
  padding: 14px 12px 20px;
  border-radius: 34px;
  border: 1px solid var(--line-dark-strong);
  background: linear-gradient(180deg, rgba(19,43,74,.96), rgba(11,27,51,.98));
  box-shadow: var(--shadow-lift);
}
.page-about .device-bar {
  display: block;
  width: 52px;
  height: 5px;
  margin: 0 auto 14px;
  border-radius: var(--pill);
  background: rgba(244,239,230,.3);
}
.page-about .device-screen {
  display: grid;
  gap: 9px;
}
.page-about .device-block {
  display: block;
  height: 42px;
  border-radius: 12px;
  background: rgba(47,217,197,.14);
  border: 1px solid rgba(47,217,197,.22);
}
.page-about .device-block--home {
  height: 56px;
  background: rgba(242,107,74,.24);
  border-color: rgba(242,107,74,.36);
}
.page-about .device-block--short { height: 30px; }
.page-about .device-block--tall { height: 78px; background: rgba(215,168,74,.12); border-color: rgba(215,168,74,.26); }

/* ---------- 品牌历程 ---------- */
.page-about .about-journey {
  background: var(--ivory);
  padding: var(--about-band) 0;
}
.page-about .journey-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.page-about .journey-index-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--rock);
}
.page-about .journey-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .journey-index-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: var(--pill);
  border: 1px solid var(--line-light);
  background: rgba(11,27,51,.04);
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-about .journey-index-link .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--clay);
}
.page-about .journey-index-link:hover {
  background: rgba(47,217,197,.16);
  border-color: var(--cyan);
}
.page-about .journey-index-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-color: var(--ink);
}
.page-about .journey-stream {
  display: grid;
  gap: 18px;
}
.page-about .journey-item {
  position: relative;
  padding: 22px 22px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-light);
  background: #fff;
  scroll-margin-top: 96px;
}
.page-about .journey-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
  background: linear-gradient(180deg, var(--clay), var(--gold));
}
.page-about .journey-year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--clay);
}
.page-about .journey-heading {
  margin: 8px 0 8px;
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.4vw, 24px);
  line-height: 1.34;
  color: var(--ink);
}
.page-about .journey-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--rock);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  background: var(--ivory);
  padding: 0 0 var(--about-band);
}
.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .team-card {
  padding: 20px 22px 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-light);
  background: rgba(112,143,106,.1);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-about .team-card:hover,
.page-about .team-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--moss);
}
.page-about .team-title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.page-about .team-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--rock);
}
.page-about .about-team-note {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line-light);
}

/* ---------- 运营节奏 ---------- */
.page-about .about-rhythm {
  background: var(--ink);
  padding: var(--about-band) 0;
}
.page-about .about-rhythm .about-kicker { color: var(--cyan); margin-top: 0; }
.page-about .about-rhythm-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}
.page-about .about-rhythm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-about .batch-card {
  padding: 24px 24px 26px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(215,168,74,.34);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(215,168,74,.16), transparent 60%),
    rgba(19,43,74,.9);
}
.page-about .batch-card-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold);
}
.page-about .batch-card-code {
  margin: 10px 0 20px;
  font-family: var(--font-mono);
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--ivory);
}
.page-about .batch-card-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.page-about .batch-card-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-dark);
  font-size: 14px;
  color: rgba(244,239,230,.78);
}
.page-about .batch-card-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

/* ---------- 荣誉与联系 ---------- */
.page-about .about-honor {
  background: var(--ivory);
  padding: var(--about-band) 0;
}
.page-about .honor-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: clamp(32px, 4.5vw, 52px);
}
.page-about .honor-item {
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-light);
  background: rgba(185,99,72,.09);
}
.page-about .honor-label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--clay);
}
.page-about .honor-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
}
.page-about .about-cta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: center;
  padding: clamp(24px, 3.5vw, 38px);
  border-radius: var(--radius-xl);
  background: linear-gradient(150deg, var(--midnight), var(--ink));
}
.page-about .about-cta-title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1.34;
  color: var(--ivory);
}
.page-about .about-cta-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244,239,230,.78);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .figure-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .team-grid,
  .page-about .honor-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-cta {
    grid-template-columns: 1fr auto;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: 34px;
  }
  .page-about .about-figures-title {
    margin-bottom: 26px;
  }
  .page-about .figure-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-map-grid {
    grid-template-columns: 6fr 5fr;
    gap: 52px;
  }
  .page-about .about-map-figure {
    position: sticky;
    top: 96px;
  }
  .page-about .about-editorial-grid {
    grid-template-columns: 5fr 6fr;
    gap: 52px;
  }
  .page-about .about-editorial-figure {
    position: sticky;
    top: 96px;
  }
  .page-about .about-mobile-grid {
    grid-template-columns: 7fr 4fr;
    gap: 56px;
  }
  .page-about .journey-layout {
    grid-template-columns: minmax(150px, 2.4fr) 9fr;
    gap: 52px;
    align-items: start;
  }
  .page-about .journey-index {
    position: sticky;
    top: 96px;
  }
  .page-about .journey-index-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
  }
  .page-about .journey-index-link {
    width: 100%;
    justify-content: flex-start;
    border-radius: var(--radius-sm);
  }
  .page-about .team-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .honor-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-rhythm-grid {
    grid-template-columns: 7fr 4fr;
    gap: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .figure:hover,
  .page-about .team-card:hover,
  .page-about .figure:focus-within,
  .page-about .team-card:focus-within {
    transform: none;
  }
}