.page-about {
  --about-gap: clamp(24px, 4vw, 56px);
  --about-line: rgba(201, 164, 92, 0.24);
}

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

.page-about .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .about-h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.32;
  letter-spacing: 0.04em;
  color: var(--warm);
  margin: 0 0 18px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: grid;
  gap: var(--about-gap);
  align-items: end;
}

.page-about .about-hero .page-title {
  font-size: clamp(32px, 6vw, 72px);
  line-height: 1.16;
  letter-spacing: 0.06em;
  color: var(--warm);
  margin: 14px 0 20px;
}

.page-about .page-lede {
  max-width: 60ch;
  color: var(--warm-gray);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
}

.page-about .about-vitals {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 36px;
  list-style: none;
  margin: 30px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-vitals li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 76px;
}

.page-about .about-vital-num {
  font-size: clamp(24px, 3vw, 30px);
  line-height: 1;
  color: var(--brass-light);
  letter-spacing: 0.04em;
}

.page-about .about-vital-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cool);
}

.page-about .about-hero-figure {
  margin: 0;
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(4, 7, 11, 0.55);
}

.page-about .figure-caption {
  max-width: 46ch;
}

/* ---------- 品牌起点 ---------- */
.page-about .about-origin-grid {
  display: grid;
  gap: 24px;
}

.page-about .about-origin-rail {
  border-left: 2px solid var(--cinnabar);
  padding-left: 16px;
}

.page-about .about-origin-year {
  font-size: clamp(38px, 7vw, 64px);
  line-height: 1;
  color: var(--brass);
  letter-spacing: 0.06em;
  margin: 10px 0 6px;
}

.page-about .about-origin-place {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--cool);
}

.page-about .about-origin-body p {
  max-width: 66ch;
  color: var(--warm-gray);
  font-size: 16px;
  line-height: 1.9;
  margin: 0 0 16px;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  position: relative;
  padding-left: clamp(20px, 3vw, 34px);
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--brass) 0%, rgba(201, 164, 92, 0.12) 100%);
}

.page-about .about-era {
  position: relative;
  padding-bottom: clamp(26px, 3.4vw, 44px);
}

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

.page-about .about-era::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(20px, 3vw, 34px) - 3.5px);
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brass);
  box-shadow: 0 0 0 4px rgba(201, 164, 92, 0.16);
}

.page-about .about-era-year {
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.1em;
  color: var(--brass-light);
  margin: 0 0 12px;
}

.page-about .about-era-body {
  padding: clamp(18px, 2.6vw, 28px);
}

.page-about .about-era-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-about .about-era-code {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cool);
}

.page-about .about-era-body .panel-title {
  margin: 0 0 10px;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.45;
  color: var(--warm);
}

.page-about .about-era-body p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cool);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: var(--about-gap);
  align-items: start;
}

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

.page-about .about-team-lede {
  max-width: 62ch;
  margin: 0 0 10px;
  color: var(--warm-gray);
  font-size: 16px;
  line-height: 1.9;
}

.page-about .about-ratio-row {
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
  border-radius: 4px;
  transition: border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-about .about-ratio-row:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-about .about-ratio-row:hover,
.page-about .about-ratio-row:focus-within {
  border-color: var(--line-strong);
  background-color: rgba(201, 164, 92, 0.05);
}

.page-about .about-ratio-row:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 6px;
}

.page-about .about-ratio-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
}

.page-about .about-ratio-label {
  font-size: 16px;
  letter-spacing: 0.08em;
  color: var(--warm);
}

.page-about .about-ratio-num {
  font-size: 15px;
  color: var(--brass-light);
  letter-spacing: 0.04em;
}

.page-about .about-ratio-track {
  margin-top: 12px;
  height: 6px;
  border-radius: 999px;
  background: rgba(244, 239, 230, 0.08);
  overflow: hidden;
}

.page-about .about-ratio-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brass) 0%, var(--brass-light) 100%);
  transition: filter 0.24s var(--ease);
}

.page-about .about-ratio-row:hover .about-ratio-fill,
.page-about .about-ratio-row:focus-within .about-ratio-fill {
  filter: brightness(1.12);
}

.page-about .about-ratio-note {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cool);
}

/* ---------- 覆盖场景 ---------- */
.page-about .about-reach-lede {
  max-width: 68ch;
  margin: 0 0 clamp(24px, 3.4vw, 36px);
  color: var(--warm-gray);
  font-size: 16px;
  line-height: 1.9;
}

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

.page-about .about-scene {
  background: linear-gradient(165deg, rgba(27, 39, 53, 0.94) 0%, rgba(17, 26, 36, 0.92) 100%);
  padding: clamp(20px, 3vw, 32px);
}

.page-about .about-scene-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--brass);
}

.page-about .about-scene h3 {
  margin: 14px 0 10px;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.45;
  color: var(--warm);
}

.page-about .about-scene p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cool);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners-grid {
  display: grid;
  gap: var(--about-gap);
  align-items: start;
}

.page-about .about-partners-intro p {
  max-width: 56ch;
  margin: 0 0 16px;
  color: var(--warm-gray);
  font-size: 16px;
  line-height: 1.9;
}

.page-about .about-partners-link {
  margin-top: 22px;
}

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

.page-about .about-phase {
  position: relative;
  padding: 22px 22px 22px 24px;
  border: 1px solid var(--line-soft);
  background: linear-gradient(160deg, rgba(27, 39, 53, 0.72) 0%, rgba(17, 26, 36, 0.6) 100%);
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-about .about-phase::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: var(--brass);
  opacity: 0.55;
}

.page-about .about-phase:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-about .about-phase-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--brass);
}

.page-about .about-phase h3 {
  margin: 12px 0 10px;
  font-size: 18px;
  line-height: 1.4;
  color: var(--warm);
}

.page-about .about-phase p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cool);
}

/* ---------- 荣誉 ---------- */
.page-about .about-honor {
  display: grid;
  gap: var(--about-gap);
  align-items: start;
}

.page-about .about-honor-body > p {
  max-width: 58ch;
  margin: 0 0 20px;
  color: var(--warm-gray);
  font-size: 16px;
  line-height: 1.9;
}

.page-about .about-honor-list {
  margin-top: 8px;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-honor-list .disclosure {
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-honor-figure {
  margin: 0;
  border: 1px solid var(--line);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  background: linear-gradient(120deg, rgba(20, 30, 42, 0.96) 0%, rgba(12, 18, 26, 0.96) 100%);
}

.page-about .about-cta-text {
  margin: 0;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.7;
  color: var(--warm-gray);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .about-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-about .about-origin-grid {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 48px;
  }

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

  .page-about .about-partners-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-about .about-honor {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }

  .page-about .about-era {
    display: grid;
    grid-template-columns: clamp(96px, 11vw, 132px) minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }

  .page-about .about-era-year {
    font-size: clamp(26px, 3vw, 36px);
    margin: 4px 0 0;
    text-align: left;
  }
}

@media (min-width: 1120px) {
  .page-about .about-phases {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 519px) {
  .page-about .about-vitals {
    gap: 16px 22px;
  }

  .page-about .about-cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-about .about-cta-actions {
    width: 100%;
  }

  .page-about .about-cta-actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-phase,
  .page-about .about-ratio-row,
  .page-about .about-ratio-fill {
    transition: none;
  }

  .page-about .about-phase:hover {
    transform: none;
  }
}
<<<END>>>