.page-about {
  --ab-radius: 6px;
  --ab-pad: clamp(20px, 4vw, 48px);
  position: relative;
  background: var(--bg);
  color: var(--ink-body);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(40px, 7vw, 96px) 0 clamp(36px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(110% 80% at 8% 0%, rgba(38, 240, 200, 0.10), transparent 62%),
    radial-gradient(70% 60% at 98% 12%, rgba(255, 122, 61, 0.09), transparent 66%);
}

.page-about .about-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
}

.page-about .about-crumb {
  margin-bottom: 22px;
}

.page-about .about-eyebrow {
  margin: 0 0 16px;
}

.page-about .about-h1 {
  margin: 0;
  max-width: 17ch;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(32px, 6vw, 64px);
  line-height: 1.06;
  letter-spacing: 0.008em;
  color: var(--ink);
}

.page-about .about-lede {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ink-body);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-about .about-hero-side {
  display: grid;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--ab-radius);
  background: var(--glass);
  align-self: start;
}

.page-about .about-fact {
  padding: 16px 20px;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-fact:last-child {
  border-bottom: 0;
}

.page-about .about-fact-num {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-about .about-fact-num--warm {
  color: var(--orange);
}

.page-about .about-fact-label {
  display: inline;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-2);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-section {
  padding: clamp(52px, 7.5vw, 108px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-section-head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(26px, 3.6vw, 44px);
}

.page-about .about-h2 {
  margin: 0;
  max-width: 26ch;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(25px, 3.5vw, 42px);
  line-height: 1.14;
  color: var(--ink);
}

.page-about .about-h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.3;
  color: var(--ink);
}

.page-about .about-section-note {
  max-width: 52ch;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-about .about-figure {
  margin: 0 0 clamp(28px, 4vw, 48px);
}

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

/* ---------- 发展阶段标签页 ---------- */
.page-about .about-stages {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--ab-radius);
  background: var(--panel);
  overflow: hidden;
}

.page-about .about-tablist {
  display: flex;
  flex-direction: row;
  overflow-x: auto;
  background: rgba(7, 21, 16, 0.72);
  border-bottom: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
}

.page-about .about-tab {
  position: relative;
  flex: 0 0 auto;
  min-width: 190px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 10px;
  align-items: baseline;
  padding: 15px 18px;
  border: 0;
  border-right: 1px solid var(--line-soft);
  background: transparent;
  color: var(--ink-2);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 220ms var(--ease), color 220ms var(--ease);
}

.page-about .about-tab::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: transparent;
  transition: background 220ms var(--ease);
}

.page-about .about-tab:hover {
  color: var(--ink);
  background: rgba(38, 240, 200, 0.05);
}

.page-about .about-tab[aria-selected="true"] {
  color: var(--ink);
  background: rgba(38, 240, 200, 0.09);
}

.page-about .about-tab[aria-selected="true"]::before {
  background: var(--cyan);
}

.page-about .about-tab-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}

.page-about .about-tab[aria-selected="true"] .about-tab-num {
  color: var(--cyan);
}

.page-about .about-tab-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.01em;
}

.page-about .about-tab-sub {
  grid-column: 1 / -1;
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-2);
}

.page-about .about-panels {
  padding: clamp(22px, 3.4vw, 42px);
}

.page-about .about-panel {
  display: block;
}

.page-about .about-panel-tag {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-about .about-panel-body {
  margin: 0;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-body);
}

.page-about .about-panel-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  max-width: 66ch;
}

.page-about .about-panel-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-about .about-panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 1px;
  background: var(--cyan);
}

.js .page-about .about-panel {
  display: none;
}

.js .page-about .about-panel.is-active {
  display: block;
}

/* ---------- 团队 ---------- */
.page-about .about-team-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-about .about-team-card {
  position: relative;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--ab-radius);
  background: linear-gradient(180deg, rgba(13, 33, 26, 0.9), rgba(7, 21, 16, 0.92));
  transition: transform 240ms var(--ease), border-color 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-about .about-team-card:hover,
.page-about .about-team-card:focus-within,
.page-about .about-team-card:focus {
  transform: translateY(-4px);
  border-color: rgba(38, 240, 200, 0.42);
  box-shadow: 0 20px 44px -28px rgba(38, 240, 200, 0.65);
  outline: none;
}

.page-about .about-team-card:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 2px;
}

.page-about .about-team-count {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-about .about-team-summary {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-body);
}

.page-about .about-team-detail {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-2);
  transition: max-height 280ms var(--ease), opacity 220ms var(--ease), margin-top 280ms var(--ease);
}

.page-about .about-team-card:hover .about-team-detail,
.page-about .about-team-card:focus-within .about-team-detail,
.page-about .about-team-card:focus .about-team-detail {
  max-height: 240px;
  opacity: 1;
  margin-top: 12px;
}

@media (hover: none) {
  .page-about .about-team-detail {
    max-height: none;
    opacity: 1;
    margin-top: 12px;
  }
}

.page-about .about-node-line {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 26px 0 0;
  padding: 14px 18px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--ab-radius) var(--ab-radius) 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-2);
  background: rgba(13, 33, 26, 0.6);
}

/* ---------- 查询能力 ---------- */
.page-about .about-capability-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-about .about-dims {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--ab-radius);
  background: var(--line);
  overflow: hidden;
}

.page-about .about-dims li {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 16px;
  background: var(--panel);
  transition: background 200ms var(--ease);
}

.page-about .about-dims li:hover {
  background: rgba(38, 240, 200, 0.07);
}

.page-about .about-dim-idx {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
}

.page-about .about-dim-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--ink);
}

.page-about .about-capability-text {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
}

.page-about .about-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin: 26px 0 0;
  padding: 0;
}

.page-about .about-metric {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--ab-radius);
  background: var(--glass);
}

.page-about .about-metric-key {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}

.page-about .about-metric-val {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 30px;
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-metric-unit {
  margin-left: 6px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  color: var(--ink-2);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-about .about-partners-main .about-h2 {
  margin-bottom: 20px;
}

.page-about .about-partner-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: var(--ab-radius);
  background: var(--line);
  overflow: hidden;
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 18px;
  background: linear-gradient(180deg, rgba(13, 33, 26, 0.92), rgba(7, 21, 16, 0.92));
}

.page-about .about-stat-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-about .about-stat-num--warm {
  color: var(--orange);
}

.page-about .about-stat-label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-2);
}

.page-about .about-honor {
  position: relative;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--ab-radius);
  background: linear-gradient(155deg, rgba(38, 240, 200, 0.09), rgba(255, 122, 61, 0.06) 58%, transparent);
  overflow: hidden;
}

.page-about .about-honor::after {
  content: "";
  position: absolute;
  right: -46px;
  bottom: -46px;
  width: 152px;
  height: 152px;
  border-radius: 50%;
  border: 1px solid rgba(38, 240, 200, 0.22);
  box-shadow: inset 0 0 0 14px rgba(38, 240, 200, 0.045), inset 0 0 0 30px rgba(38, 240, 200, 0.03);
  pointer-events: none;
}

.page-about .about-honor-year {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .about-honor-name {
  position: relative;
  z-index: 1;
  margin: 0 0 12px;
  max-width: 22ch;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.35;
  color: var(--ink);
}

.page-about .about-honor-note {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 34ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-about .about-partners-foot {
  margin: 16px 0 0;
}

/* ---------- 属地与联系 ---------- */
.page-about .about-region-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-about .about-region-text .body-text {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
}

.page-about .about-region-cta {
  margin-top: 22px;
}

.page-about .about-contact-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--ab-radius);
  background: var(--glass);
  overflow: hidden;
}

.page-about .about-contact-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 12px;
  padding: 15px 18px;
  border-bottom: 1px solid var(--line-soft);
  align-items: center;
}

.page-about .about-contact-row:last-child {
  border-bottom: 0;
}

.page-about .about-contact-key {
  grid-column: 1 / -1;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}

.page-about .about-contact-val {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-about .about-copy {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.2;
  cursor: pointer;
  transition: background 200ms var(--ease), border-color 200ms var(--ease);
}

.page-about .about-copy:hover {
  background: rgba(38, 240, 200, 0.12);
  border-color: rgba(38, 240, 200, 0.4);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  border-bottom: 0;
  background:
    radial-gradient(90% 80% at 0% 100%, rgba(38, 240, 200, 0.09), transparent 65%),
    radial-gradient(70% 70% at 100% 0%, rgba(255, 122, 61, 0.07), transparent 65%);
}

.page-about .about-cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: center;
}

.page-about .about-cta-copy .body-text {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 860px) {
  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-about .about-stages {
    grid-template-columns: 292px minmax(0, 1fr);
  }

  .page-about .about-tablist {
    flex-direction: column;
    overflow-x: visible;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .page-about .about-tab {
    width: 100%;
    min-width: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-soft);
  }

  .page-about .about-tab::before {
    left: 0;
    right: auto;
    top: 0;
    bottom: 0;
    width: 2px;
    height: auto;
  }

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

  .page-about .about-capability-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-about .about-partners-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(30px, 4.5vw, 64px);
    align-items: start;
  }

  .page-about .about-region-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-about .about-cta-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero-side {
    margin-top: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-team-card,
  .page-about .about-team-detail,
  .page-about .about-tab,
  .page-about .about-dims li,
  .page-about .about-copy {
    transition: none;
  }

  .page-about .about-team-card:hover,
  .page-about .about-team-card:focus,
  .page-about .about-team-card:focus-within {
    transform: none;
  }
}