.page-about {
  --about-head-gap: clamp(20px, 3vw, 36px);
  --about-line-grid: rgba(58, 74, 90, 0.09);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: calc(var(--header-h) + 40px) 0 clamp(40px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
}
.page-about .about-hero__inner {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: end;
}
.page-about .about-hero__text { min-width: 0; }
.page-about .about-hero .breadcrumb { margin-bottom: 22px; }
.page-about .about-hero .eyebrow { margin-bottom: 14px; }
.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
}
.page-about .about-hero__lead {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  line-height: 1.8;
  color: var(--winter);
  max-width: 34em;
  margin: 0 0 24px;
}
.page-about .about-hero__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  padding: 0;
  margin: 0 0 28px;
  font-size: 0.875rem;
  color: var(--gray);
}
.page-about .about-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  border-left: 1px solid var(--line-strong);
  padding-left: 12px;
}
.page-about .about-hero__meta .mono {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--ink);
}
.page-about .about-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}
.page-about .about-hero__figure {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-top: none;
  border-right: none;
  padding: 10px 0 0 10px;
}
.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(0.94);
}
.page-about .about-hero__figure .figure__cap {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--gray);
  line-height: 1.6;
}

@media (min-width: 861px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
  }
}

/* ---------- 通用区块节奏 ---------- */
.page-about .about-block {
  padding: clamp(52px, 8vw, 104px) 0;
  border-bottom: 1px solid var(--line);
}
.page-about .about-block--grid {
  background-image:
    repeating-linear-gradient(to bottom, var(--about-line-grid) 0 1px, transparent 1px 8px);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: top center;
  background-color: transparent;
}
.page-about .about-block--grid > .container {
  position: relative;
}
.page-about .about-head { margin-bottom: var(--about-head-gap); max-width: 44em; }
.page-about .about-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  line-height: 1.22;
  letter-spacing: -0.015em;
  margin: 10px 0 0;
}
.page-about .about-head__lead {
  margin: 16px 0 0;
  color: var(--winter);
  line-height: 1.8;
  font-size: 1rem;
  max-width: 38em;
}
.page-about .about-head--light h2 { color: var(--paper); }
.page-about .about-head--light .eyebrow { color: var(--autumn); }

/* ---------- 为什么这样排 ---------- */
.page-about .about-why {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}
.page-about .about-why__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  line-height: 1.22;
  letter-spacing: -0.015em;
  margin: 10px 0 0;
  max-width: 14em;
}
.page-about .about-why__head { border-top: 2px solid var(--winter); padding-top: 18px; }
.page-about .about-why__body p {
  margin: 0 0 18px;
  line-height: 1.85;
  font-size: 1rem;
  color: var(--ink);
}
.page-about .about-why__body p:last-child { margin-bottom: 0; }
.page-about .about-why__body b {
  font-weight: 700;
  color: var(--winter);
  box-shadow: inset 0 -0.5em 0 rgba(217, 164, 65, 0.28);
}

@media (min-width: 861px) {
  .page-about .about-why {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-about .about-why__head h2 { font-size: clamp(1.7rem, 2.6vw, 2.2rem); }
}

/* ---------- 四段流程 ---------- */
.page-about .about-flow {
  border-top: 1px solid var(--line-strong);
}
.page-about .about-flow__heading { margin: 0; }
.page-about .about-flow .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 4px 20px 14px;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  border-left: 3px solid transparent;
  font: inherit;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}
.page-about .about-flow .accordion__idx {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--gray);
  flex: none;
}
.page-about .about-flow .accordion__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  letter-spacing: -0.01em;
  flex: 1 1 auto;
}
.page-about .about-flow .accordion__sign {
  flex: none;
  position: relative;
  width: 16px;
  height: 16px;
}
.page-about .about-flow .accordion__sign::before,
.page-about .about-flow .accordion__sign::after {
  content: "";
  position: absolute;
  background: var(--winter);
  transition: transform 180ms var(--ease);
}
.page-about .about-flow .accordion__sign::before { left: 0; right: 0; top: 7px; height: 1px; }
.page-about .about-flow .accordion__sign::after { top: 0; bottom: 0; left: 7px; width: 1px; }
.page-about .about-flow .accordion__trigger[aria-expanded="true"] .accordion__sign::after { transform: scaleY(0); }
.page-about .about-flow .accordion__trigger[aria-expanded="true"] {
  background: rgba(220, 235, 226, 0.55);
}
.page-about .about-flow .accordion__panel {
  overflow: hidden;
  height: 0;
  transition: height 180ms ease-out;
  border-bottom: 1px solid var(--line);
}
.page-about .about-flow .accordion__panel .accordion__body {
  padding: 18px 4px 22px 30px;
  max-width: 46em;
}
.page-about .about-flow .accordion__body p {
  margin: 0 0 14px;
  line-height: 1.85;
  font-size: 0.975rem;
  color: var(--winter);
}
.page-about .about-flow__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}
.page-about .about-flow__list li {
  position: relative;
  padding-left: 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--gray);
  line-height: 1.7;
}
.page-about .about-flow__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--autumn);
}

.page-about .about-flow__item--spring .accordion__trigger { border-left-color: var(--spring); }
.page-about .about-flow__item--summer .accordion__trigger { border-left-color: var(--summer); }
.page-about .about-flow__item--autumn .accordion__trigger { border-left-color: var(--autumn); }
.page-about .about-flow__item--winter .accordion__trigger { border-left-color: var(--winter); }
.page-about .about-flow__item--spring .accordion__trigger[aria-expanded="true"] { border-left-width: 6px; }
.page-about .about-flow__item--summer .accordion__trigger[aria-expanded="true"] { border-left-width: 6px; }
.page-about .about-flow__item--autumn .accordion__trigger[aria-expanded="true"] { border-left-width: 6px; }
.page-about .about-flow__item--winter .accordion__trigger[aria-expanded="true"] { border-left-width: 6px; }

/* ---------- 色谱图 ---------- */
.page-about .about-swatch {
  margin: clamp(32px, 5vw, 56px) 0 0;
  display: grid;
  gap: 12px;
}
.page-about .about-swatch img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
}
.page-about .about-swatch .figure__cap {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--gray);
  max-width: 46em;
  border-left: 48px solid var(--autumn);
  padding-left: 12px;
}
@media (min-width: 861px) {
  .page-about .about-swatch {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
    align-items: end;
  }
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}
.page-about .about-team__body h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  line-height: 1.22;
  letter-spacing: -0.015em;
  margin: 10px 0 16px;
}
.page-about .about-team__body > p {
  max-width: 36em;
  line-height: 1.85;
  color: var(--winter);
  margin: 0 0 26px;
}
.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .about-team__item {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  background: var(--paper);
  padding: 18px 16px;
}
.page-about .about-team__num {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--summer-deep);
  border-top: 2px solid var(--summer);
  padding-top: 8px;
}
.page-about .about-team__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.01em;
}
.page-about .about-team__item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--winter);
}
.page-about .about-team__figure {
  margin: 0;
  align-self: start;
}
.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  border: 1px solid var(--line-strong);
}
.page-about .about-team__figure .figure__cap {
  display: block;
  margin-top: 10px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--gray);
}
@media (min-width: 861px) {
  .page-about .about-team {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.7fr);
    align-items: start;
  }
  .page-about .about-team__figure { position: sticky; top: calc(var(--header-h) + 24px); }
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  display: grid;
  gap: clamp(20px, 3vw, 0px);
  border-top: 1px solid var(--line-strong);
  padding-top: 24px;
}
.page-about .about-axis {
  display: none;
}
.page-about .about-miles {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  position: relative;
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}
.page-about .about-miles::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom, var(--winter) 0%, var(--line-strong) 70%, transparent 100%);
}
.page-about .about-mile {
  position: relative;
  padding-bottom: 4px;
}
.page-about .about-mile::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 8px;
  width: 11px;
  height: 11px;
  border: 1px solid var(--winter);
  background: var(--paper);
  box-sizing: border-box;
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease);
}
.page-about .about-mile:hover::before { background: var(--autumn); border-color: var(--autumn); }
.page-about .about-mile__year {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--summer-deep);
  margin: 0 0 6px;
}
.page-about .about-mile__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.05rem, 2.1vw, 1.3rem);
  letter-spacing: -0.01em;
  line-height: 1.4;
  transition: color 180ms var(--ease);
}
.page-about .about-mile:hover .about-mile__body h3 { color: var(--winter); }
.page-about .about-mile__body p {
  margin: 0;
  max-width: 40em;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--winter);
}
.page-about .about-mile--now::before {
  background: var(--autumn);
  border-color: var(--autumn);
  box-shadow: 0 0 0 4px rgba(217, 164, 65, 0.18);
}

@media (min-width: 861px) {
  .page-about .about-timeline {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(28px, 5vw, 64px);
  }
  .page-about .about-axis {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }
  .page-about .about-axis__label {
    margin: 0 0 14px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.06em;
    color: var(--winter);
    border-bottom: 2px solid var(--autumn);
    display: inline-block;
    padding-bottom: 6px;
  }
  .page-about .about-axis__rail {
    display: block;
    height: 120px;
    width: 100%;
    background-image: repeating-linear-gradient(to bottom, var(--line-strong) 0 1px, transparent 1px 12px);
  }
  .page-about .about-axis__note {
    margin: 14px 0 0;
    font-size: 0.8125rem;
    line-height: 1.7;
    color: var(--gray);
    max-width: 15em;
  }
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
}
.page-about .about-partners__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  line-height: 1.22;
  letter-spacing: -0.015em;
  margin: 10px 0 16px;
}
.page-about .about-partners__head p {
  max-width: 34em;
  line-height: 1.85;
  color: var(--winter);
  margin: 0;
}
.page-about .about-partners__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .about-partners__item {
  background: var(--mist);
  padding: 20px 18px;
}
.page-about .about-partners__num {
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 4vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--winter);
  margin: 0 0 10px;
}
.page-about .about-partners__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
}
.page-about .about-partners__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--winter);
}
@media (min-width: 861px) {
  .page-about .about-partners {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
  }
  .page-about .about-partners__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 数字收束 ---------- */
.page-about .about-block--figures {
  background: var(--night);
  color: var(--paper);
  border-bottom: none;
}
.page-about .about-block--figures .about-head { margin-bottom: clamp(24px, 4vw, 40px); }
.page-about .about-figures {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(245, 241, 232, 0.16);
  border-top: 1px solid var(--line-gold);
  border-bottom: 1px solid var(--line-gold);
}
.page-about .about-figures__item {
  background: var(--night);
  padding: 22px 18px;
  display: grid;
  align-content: start;
  gap: 8px;
}
.page-about .about-figures__num {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--autumn);
  display: block;
}
.page-about .about-figures__unit {
  font-size: 0.5em;
  letter-spacing: 0.02em;
  color: rgba(245, 241, 232, 0.72);
  margin-left: 4px;
}
.page-about .about-figures__label {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: rgba(245, 241, 232, 0.78);
  line-height: 1.6;
}
.page-about .about-figures__note {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  line-height: 1.8;
  color: rgba(245, 241, 232, 0.62);
  max-width: 52em;
}
@media (min-width: 681px) {
  .page-about .about-figures { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 981px) {
  .page-about .about-figures { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- 结尾行动 ---------- */
.page-about .about-block--cta { border-bottom: none; padding-bottom: clamp(56px, 8vw, 96px); }
.page-about .about-cta {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line-strong);
  border-left: 6px solid var(--spring);
  padding: clamp(22px, 4vw, 40px);
  background: var(--cinnabar);
}
.page-about .about-cta__text h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  line-height: 1.3;
  letter-spacing: -0.015em;
  margin: 10px 0 12px;
}
.page-about .about-cta__text p {
  margin: 0;
  max-width: 32em;
  line-height: 1.8;
  font-size: 0.975rem;
  color: var(--winter);
}
.page-about .about-cta__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  align-content: center;
}
.page-about .about-cta__links .btn { text-align: center; }
@media (min-width: 861px) {
  .page-about .about-cta {
    grid-template-columns: minmax(0, 1.3fr) minmax(240px, 0.7fr);
    align-items: center;
  }
}
<<<END>>>