.page-about {
  --about-block-pad: clamp(52px, 7.5vw, 104px);
  --about-radius: 0px;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

.page-about .eyebrow {
  color: var(--cyan);
  letter-spacing: 0.16em;
}

.page-about .about-block {
  padding-block: var(--about-block-pad);
  border-top: 1px solid var(--line);
}

.page-about .about-block--band {
  background: linear-gradient(180deg, var(--panel) 0%, #09201B 100%);
}

.page-about .about-h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(26px, 4.2vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 10px 0 0;
}

.page-about .about-sub {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-head {
  display: grid;
  gap: 4px;
}

.page-about .about-head--split {
  gap: 16px;
}

/* ---------- 首屏 ---------- */
.page-about .about-intro {
  position: relative;
  padding-block: clamp(76px, 11vw, 132px) clamp(38px, 5vw, 62px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(100, 244, 210, 0.10) 0%, transparent 58%),
    var(--bg);
}

.page-about .about-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 108px);
  opacity: 0.5;
  pointer-events: none;
}

.page-about .about-intro-grid {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-about .about-title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 6.6vw, 82px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 14px 0 20px;
}

.page-about .about-title em {
  display: block;
  font-style: normal;
  color: var(--cyan);
}

.page-about .about-lede {
  max-width: 60ch;
  margin: 0;
  font-size: clamp(16px, 1.1vw, 18px);
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-index {
  border: 1px solid var(--line);
  background: rgba(11, 38, 32, 0.78);
  padding: 18px 18px 8px;
}

.page-about .about-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .about-index ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-index a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-index li:last-child a {
  border-bottom: 0;
}

.page-about .about-index .num {
  color: var(--orange);
  font-size: 12px;
  min-width: 20px;
}

.page-about .about-index a:hover,
.page-about .about-index a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-about .about-figures {
  position: relative;
  list-style: none;
  margin: clamp(30px, 4.5vw, 54px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-figure {
  background: var(--bg);
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-figure-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1;
  color: var(--orange);
}

.page-about .about-figure-label {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 起点 ---------- */
.page-about .about-origin-grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 44px);
}

.page-about .about-origin-copy p {
  max-width: 64ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-origin-copy p:first-of-type {
  color: var(--text);
}

.page-about .about-origin-side {
  border-left: 2px solid var(--orange);
  padding: 4px 0 4px 20px;
}

.page-about .about-side-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .about-side-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-side-list li {
  display: flex;
  gap: 10px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
}

.page-about .about-side-list .num {
  color: var(--cyan);
  flex: none;
}

.page-about .about-media {
  margin: clamp(28px, 4vw, 46px) 0 0;
  border: 1px solid var(--line);
  background: var(--panel-2);
  position: relative;
}

.page-about .about-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  max-width: 100%;
  filter: saturate(0.9) contrast(1.05);
}

.page-about .about-caption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-track {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-track-item {
  position: relative;
  background: var(--panel);
  padding: 24px 20px 22px;
}

.page-about .about-track-item::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 20px;
  width: 30px;
  height: 2px;
  background: var(--orange);
}

.page-about .about-track-item .num {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-about .about-track-item h3 {
  margin: 8px 0 6px;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
}

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

/* ---------- 产品 ---------- */
.page-about .about-tabs {
  margin-top: clamp(24px, 3.2vw, 36px);
}

.page-about .about-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0;
}

.page-about .about-tab {
  appearance: none;
  border: 1px solid var(--line);
  border-bottom: none;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 12px 16px;
  cursor: pointer;
  transition: color 0.18s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-tab:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-about .about-tab[aria-selected="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #06201B;
}

.page-about .about-tab:focus-visible {
  outline: 2px solid var(--cyan-soft);
  outline-offset: 2px;
}

.page-about .about-tabpanel {
  padding-top: clamp(22px, 3vw, 34px);
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.page-about .about-tabpanel[hidden] {
  display: none;
}

.page-about .about-panel-copy h3 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
}

.page-about .about-panel-copy p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 62ch;
}

.page-about .about-panel-copy p:last-child {
  margin-bottom: 0;
}

.page-about .about-panel-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  align-content: start;
}

.page-about .about-panel-stats li {
  background: var(--panel-2);
  padding: 15px 18px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-about .about-stat-num {
  font-family: var(--font-mono);
  font-size: 21px;
  line-height: 1.15;
  color: var(--orange);
}

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

.page-about .about-tabs-foot {
  margin: clamp(22px, 3vw, 30px) 0 0;
  font-size: 15px;
}

.page-about .about-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(100, 244, 210, 0.4);
  padding-bottom: 2px;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--cyan-soft);
  border-color: var(--cyan-soft);
}

/* ---------- 团队 ---------- */
.page-about .about-team-grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 44px);
  margin-top: clamp(26px, 3.6vw, 42px);
}

.page-about .about-media--team {
  margin: 0;
}

.page-about .about-quads {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-quad {
  padding: 22px 20px;
  transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease);
  outline: none;
}

.page-about .about-quad:nth-child(1) { background: #0B2620; }
.page-about .about-quad:nth-child(2) { background: #0E2C25; }
.page-about .about-quad:nth-child(3) { background: #10332B; }
.page-about .about-quad:nth-child(4) { background: #0D2A23; }

.page-about .about-quad:hover,
.page-about .about-quad:focus,
.page-about .about-quad:focus-visible {
  background: #14403４;
  box-shadow: inset 0 0 0 1px var(--cyan);
}

.page-about .about-quad-num {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-about .about-quad h3 {
  margin: 8px 0 8px;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
}

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

.page-about .about-quad-more {
  margin-top: 10px !important;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  color: #86A79C !important;
  transition: color 0.2s var(--ease);
}

.page-about .about-quad:hover .about-quad-more,
.page-about .about-quad:focus .about-quad-more,
.page-about .about-quad:focus-visible .about-quad-more {
  color: var(--cyan-soft) !important;
}

/* ---------- 合作 ---------- */
.page-about .about-eco-grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 44px);
}

.page-about .about-eco-copy > p {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-eco-list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-eco-list li {
  background: var(--bg);
  padding: 16px 18px;
  border-left: 2px solid var(--line);
  transition: border-color 0.18s var(--ease);
}

.page-about .about-eco-list li:hover {
  border-left-color: var(--cyan);
}

.page-about .about-eco-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

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

.page-about .about-media--eco {
  margin: 0;
}

.page-about .about-honors {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-honors li {
  background: var(--panel);
  padding: 20px 18px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.page-about .about-honor-num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--gold);
  border: 1px solid var(--line);
  padding: 6px 8px;
}

.page-about .about-honors h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
}

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

/* ---------- 场景 ---------- */
.page-about .about-scenes-grid {
  margin-top: clamp(26px, 3.6vw, 40px);
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-scene {
  background: var(--panel);
  padding: 24px 20px;
}

.page-about .about-scene--lead {
  background: linear-gradient(150deg, #10332B 0%, #0B2620 72%);
}

.page-about .about-scene-role {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .about-scene h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 700;
  line-height: 1.3;
}

.page-about .about-scene p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-about .about-scene-foot {
  font-family: var(--font-mono);
  font-size: 12px !important;
  letter-spacing: 0.05em;
  color: var(--cyan) !important;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.page-about .about-scenes-foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  border-top: 1px solid var(--line);
  padding-block: clamp(48px, 7vw, 88px);
  background:
    linear-gradient(120deg, var(--panel-2) 0%, var(--bg) 72%);
}

.page-about .about-next-inner {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
}

.page-about .about-next-copy p {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

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

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

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

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

  .page-about .about-head--split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
    gap: clamp(20px, 3vw, 40px);
  }

  .page-about .about-next-inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }

  .page-about .about-next-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-about .about-intro-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-about .about-tabpanel {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-about .about-eco-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

  .page-about .about-scenes-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    grid-template-rows: auto auto;
  }

  .page-about .about-scene--lead {
    grid-row: 1 / span 2;
  }
}

@media (min-width: 1100px) {
  .page-about .about-origin-grid {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 0.9fr);
    align-items: start;
    gap: clamp(32px, 4vw, 64px);
  }
}
<<<END>>>