.page-about {
  background: var(--c-ink);
  color: var(--c-paper);
  overflow-x: clip;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏：左窄右宽品牌墙 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(1.5rem, 4vw, 3rem) 0 clamp(2rem, 5vw, 3.75rem);
  border-bottom: 1px solid var(--c-line-soft);
  background:
    radial-gradient(115% 80% at 88% 6%, rgba(37, 244, 208, 0.10), transparent 62%),
    radial-gradient(95% 75% at -5% 100%, rgba(255, 122, 61, 0.08), transparent 66%);
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.75rem);
  min-width: 0;
}

.page-about .about-plate {
  min-width: 0;
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-heat);
  background-color: var(--c-indigo);
  background-image: var(--panel-grid);
  background-size: 22px 22px;
  padding: 1.3rem 1.2rem 1.45rem;
  box-shadow: var(--shadow-raise);
}

.page-about .plate-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
}

.page-about .plate-title {
  margin: 0.35rem 0 0.15rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: 0.01em;
  color: var(--c-paper);
}

.page-about .plate-sub {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--c-cyan-soft);
}

.page-about .plate-facts {
  margin: 1.15rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--c-line-soft);
  display: grid;
  gap: 0.6rem;
}

.page-about .plate-facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}

.page-about .plate-facts dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}

.page-about .plate-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--c-cyan-soft);
}

.page-about .about-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--c-heat);
}

.page-about .about-hero h1 {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 5.6vw, 3.1rem);
  line-height: 1.14;
  letter-spacing: -0.005em;
  color: var(--c-paper);
}

.page-about .about-lead {
  margin: 1rem 0 0;
  max-width: 62ch;
  font-size: clamp(0.94rem, 2vw, 1.05rem);
  line-height: 1.9;
  color: var(--c-cyan-soft);
}

.page-about .hero-visual {
  margin: clamp(1.4rem, 3.5vw, 2rem) 0 0;
}

/* ---------- 图片容器（页面内统一处理） ---------- */
.page-about .media-frame {
  margin: 0;
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  border: 1px solid var(--c-line);
  background: var(--c-ink-deep);
  overflow: hidden;
}

.page-about .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

/* ---------- 展区分区节奏 ---------- */
.page-about .about-section {
  padding: clamp(2.25rem, 6vw, 4.25rem) 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-about .about-position { background: var(--c-ink); }
.page-about .about-timeline { background: var(--c-teal); }
.page-about .about-team { background: var(--c-ink-deep); }
.page-about .about-reach { background: var(--c-ink); }
.page-about .about-partners { background: var(--c-indigo); }

.page-about .about-section .section-head {
  max-width: 72ch;
}

.page-about .section-lead {
  margin: 1rem 0 0;
  max-width: 66ch;
  font-size: clamp(0.92rem, 1.9vw, 1rem);
  line-height: 1.9;
  color: var(--c-cyan-soft);
}

/* ---------- 展区 01：三条路径 ---------- */
.page-about .path-grid {
  margin-top: clamp(1.4rem, 3.5vw, 2.25rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(0.9rem, 2.4vw, 1.35rem);
}

.page-about .path-card {
  min-width: 0;
  padding: 1.3rem 1.2rem 1.4rem;
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-cyan);
  background: var(--c-ink-deep);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .path-card:nth-child(2) { border-top-color: var(--c-heat); }
.page-about .path-card:nth-child(3) { border-top-color: var(--c-cyan-soft); }

.page-about .path-card:hover,
.page-about .path-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--c-cyan);
  box-shadow: var(--shadow-raise);
}

.page-about .path-card .card-title {
  margin: 0.45rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  line-height: 1.3;
  color: var(--c-paper);
}

.page-about .path-text {
  margin: 0.7rem 0 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(234, 247, 245, 0.8);
}

.page-about .path-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.42rem;
}

.page-about .path-list li {
  position: relative;
  padding-left: 1rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

.page-about .path-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--c-cyan);
  transform: rotate(45deg);
}

.page-about .about-note {
  margin: clamp(1.4rem, 3.5vw, 2rem) 0 0;
  padding-left: 1rem;
  border-left: 2px solid var(--c-heat);
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--c-cyan-soft);
}

.page-about .about-note a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease);
}

.page-about .about-note a:hover,
.page-about .about-note a:focus-visible {
  color: var(--c-heat);
}

/* ---------- 展区 02：里程碑时间轴 ---------- */
.page-about .milestone-track {
  list-style: none;
  position: relative;
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  padding: 0 0 0 1.7rem;
}

.page-about .milestone-track::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-cyan) 0%, var(--c-heat) 55%, var(--c-wine) 100%);
  opacity: 0.75;
}

.page-about .milestone {
  position: relative;
  min-width: 0;
  padding-bottom: clamp(1.4rem, 3.2vw, 2rem);
}

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

.page-about .milestone::before {
  content: "";
  position: absolute;
  left: -1.7rem;
  top: 0.42rem;
  width: 12px;
  height: 12px;
  border: 2px solid var(--c-cyan);
  background: var(--c-teal);
  transform: rotate(45deg);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .milestone:hover::before,
.page-about .milestone:focus-within::before {
  background: var(--c-cyan);
  border-color: var(--c-cyan-soft);
  box-shadow: 0 0 0 5px rgba(37, 244, 208, 0.16);
}

.page-about .milestone-era {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--c-heat);
}

.page-about .milestone-title {
  margin: 0.35rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.02rem, 2.4vw, 1.18rem);
  line-height: 1.35;
  color: var(--c-paper);
}

.page-about .milestone-text {
  margin: 0.5rem 0 0;
  max-width: 64ch;
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(234, 247, 245, 0.78);
}

/* ---------- 展区 03：团队分工 ---------- */
.page-about .team-layout {
  margin-top: clamp(1.4rem, 3.5vw, 2.25rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
}

.page-about .team-visual {
  min-width: 0;
}

.page-about .team-visual .media-caption {
  margin-top: 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

.page-about .roster {
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
  display: grid;
  gap: 1px;
  background: var(--c-line-soft);
  border: 1px solid var(--c-line);
}

.page-about .roster-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 1rem;
  align-items: start;
  padding: 1rem 1.05rem;
  background: var(--c-teal);
  transition: background var(--dur) var(--ease);
}

.page-about .roster-row:hover {
  background: rgba(37, 244, 208, 0.09);
}

.page-about .roster-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
}

.page-about .roster-body {
  min-width: 0;
}

.page-about .roster-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--c-paper);
}

.page-about .roster-note {
  margin: 0.3rem 0 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: rgba(234, 247, 245, 0.75);
}

/* ---------- 展区 04：覆盖范围与本地服务 ---------- */
.page-about .reach-stats {
  margin-top: clamp(1.4rem, 3.5vw, 2.25rem);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--c-line-soft);
  border: 1px solid var(--c-line);
  min-width: 0;
}

.page-about .reach-stats .stat {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.1em 0.25em;
  min-width: 0;
  padding: 1.05rem 1rem 1.15rem;
  background: var(--c-ink-deep);
}

.page-about .reach-stats .stat-value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4.4vw, 2.25rem);
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
}

.page-about .reach-stats .stat-unit {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--c-cyan-soft);
}

.page-about .reach-stats .stat-label {
  flex-basis: 100%;
  margin-top: 0.45rem;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--c-muted);
}

.page-about .output-band {
  margin-top: clamp(1.2rem, 3vw, 1.9rem);
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-heat);
  background: var(--c-wine);
}

.page-about .output-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--c-cyan-soft);
}

.page-about .output-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-about .output-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.15rem 0.6rem;
  min-width: 0;
}

.page-about .output-num {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-heat);
}

.page-about .output-desc {
  font-size: 0.88rem;
  line-height: 1.6;
  color: rgba(234, 247, 245, 0.85);
}

.page-about .local-module {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding: clamp(1.1rem, 3vw, 1.9rem);
  border: 1px solid var(--c-line);
  background: var(--c-indigo);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.1rem, 3vw, 1.9rem);
  align-items: center;
}

.page-about .local-copy {
  min-width: 0;
}

.page-about .local-figure {
  min-width: 0;
}

.page-about .local-title {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.9vw, 1.5rem);
  line-height: 1.3;
  color: var(--c-paper);
}

.page-about .local-text {
  margin: 0.75rem 0 0;
  max-width: 58ch;
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(234, 247, 245, 0.8);
}

.page-about .local-list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-about .local-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.15rem 0.7rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-about .local-key {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
}

.page-about .local-val {
  font-size: 0.86rem;
  line-height: 1.6;
  color: rgba(234, 247, 245, 0.82);
}

/* ---------- 展区 05：合作生态 ---------- */
.page-about .partner-grid {
  margin-top: clamp(1.4rem, 3.5vw, 2.25rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(0.9rem, 2.4vw, 1.35rem);
}

.page-about .partner-panel {
  min-width: 0;
  padding: 1.3rem 1.2rem 1.45rem;
  border: 1px solid var(--c-line);
  background: rgba(7, 27, 47, 0.5);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .partner-panel-wine {
  border-top: 3px solid var(--c-heat-hot);
}

.page-about .partner-panel:hover,
.page-about .partner-panel:focus-within {
  transform: translateY(-3px);
  border-color: var(--c-cyan);
}

.page-about .partner-num {
  margin: 0.5rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
}

.page-about .partner-num span {
  margin-left: 0.4rem;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--c-cyan-soft);
}

.page-about .partner-title {
  margin: 0.7rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  line-height: 1.35;
  color: var(--c-paper);
}

.page-about .partner-text {
  margin: 0.55rem 0 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(234, 247, 245, 0.78);
}

/* ---------- 咨询入口 ---------- */
.page-about .about-cta {
  padding: clamp(2.25rem, 6vw, 4rem) 0;
  background: linear-gradient(120deg, var(--c-teal) 0%, var(--c-indigo) 55%, var(--c-wine) 100%);
}

.page-about .cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2.25rem);
  align-items: center;
}

.page-about .cta-copy {
  min-width: 0;
}

.page-about .cta-title {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 3.6vw, 2rem);
  line-height: 1.25;
  color: var(--c-paper);
}

.page-about .cta-text {
  margin: 0.8rem 0 0;
  max-width: 56ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: rgba(234, 247, 245, 0.85);
}

.page-about .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .path-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .output-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-about .output-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(230px, 292px) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-plate {
    position: sticky;
    top: 96px;
  }

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

  .page-about .team-layout {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-about .local-module {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

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

  .page-about .cta-inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}