.page-about {
  --about-gap: clamp(2.5rem, 6vw, 4.5rem);
  --about-tl-bg: var(--sand);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

.page-about .container {
  width: 100%;
  max-width: var(--maxw, 1320px);
  margin-inline: auto;
  padding-inline: var(--gutter, 1.15rem);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: grid;
  gap: 1.25rem;
  padding-block: clamp(1.75rem, 4vw, 3rem) clamp(2.5rem, 6vw, 4.5rem);
}

.page-about .about-hero__eyebrow {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: var(--fs-small);
  letter-spacing: 0.2em;
  color: var(--moss);
}

.page-about .about-hero__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.14em;
  color: var(--spring);
  border: 1px solid var(--line);
  padding: 0.18rem 0.42rem;
}

.page-about .about-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.1rem, 7.4vw, 3.9rem);
  line-height: 1.14;
  letter-spacing: 0.04em;
  max-width: 16ch;
  overflow-wrap: break-word;
}

.page-about .about-hero__lead {
  margin: 0;
  max-width: 44rem;
  font-size: var(--fs-lead);
  line-height: 1.85;
  color: var(--moss);
}

.page-about .about-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0.9rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.6rem;
  border-top: 1px solid var(--line);
}

.page-about .about-hero__facts li {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
  color: var(--ink);
}

.page-about .about-hero__facts li::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.55rem;
  background: var(--spring);
  flex: none;
}

.page-about .about-hero__facts li:nth-child(2)::before {
  background: var(--summer);
}

.page-about .about-hero__facts li:nth-child(3)::before {
  background: var(--autumn);
}

/* ---------- 通用分段 ---------- */
.page-about .about-band {
  padding-block: var(--about-gap);
}

.page-about .about-band--sand {
  background: var(--sand);
}

.page-about .about-band__title {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--fs-h2);
  line-height: 1.28;
  letter-spacing: 0.03em;
  max-width: 20ch;
}

.page-about .about-band__title::before {
  content: "";
  display: block;
  width: 2.4rem;
  height: 3px;
  margin-bottom: 1rem;
  background: var(--autumn);
}

.page-about .about-band__lead {
  margin: 0 0 clamp(1.75rem, 4vw, 2.75rem);
  max-width: 42rem;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--moss);
}

/* ---------- 起源：双栏 ---------- */
.page-about .about-columns {
  display: grid;
  gap: 1.75rem;
  margin-top: 1.25rem;
}

.page-about .about-columns__main p {
  margin: 0 0 1.1rem;
  font-size: var(--fs-body);
  line-height: 1.85;
  max-width: 40rem;
}

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

.page-about .about-quote {
  margin: 0 0 0.85rem;
  padding-left: 1rem;
  border-left: 1px solid var(--spring);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  line-height: 1.7;
  letter-spacing: 0.02em;
}

.page-about .about-quote__note {
  margin: 0;
  padding-left: 1rem;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--moss);
}

/* ---------- 图注 ---------- */
.page-about .about-figure {
  margin: 0 0 clamp(2rem, 5vw, 3rem);
}

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

.page-about .about-figure figcaption {
  margin-top: 0.75rem;
  padding-left: 0.85rem;
  border-left: 1px solid var(--line);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--moss);
}

/* ---------- 时间线 ---------- */
.page-about .tl {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .tl__item {
  position: relative;
  padding: 0 0 2rem 2.25rem;
}

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: 0.55rem;
  top: 0.95rem;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

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

.page-about .tl__item:last-child::before {
  display: none;
}

.page-about .tl__item::after {
  content: "";
  position: absolute;
  left: 0.55rem;
  top: 0.5rem;
  width: 0.62rem;
  height: 0.62rem;
  margin-left: -0.31rem;
  border-radius: 50%;
  background: var(--tone, var(--spring));
  box-shadow: 0 0 0 4px var(--about-tl-bg);
}

.page-about .tl__year {
  display: block;
  margin-bottom: 0.28rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  color: var(--tone, var(--moss));
}

.page-about .tl__name {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--fs-h3);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.page-about .tl__ver {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 0.12rem 0.4rem;
  margin-left: 0.35rem;
  white-space: nowrap;
  vertical-align: 0.15em;
}

.page-about .tl__text {
  margin: 0;
  max-width: 38rem;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--moss);
}

/* ---------- 数字板 ---------- */
.page-about .about-figures {
  background: var(--pine);
  color: var(--paper);
  padding-block: var(--about-gap);
}

.page-about .about-figures__title {
  margin: 0 0 clamp(1.5rem, 4vw, 2.5rem);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--fs-h2);
  letter-spacing: 0.03em;
  line-height: 1.3;
  max-width: 18ch;
}

.page-about .figures {
  list-style: none;
  margin: 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(250, 248, 243, 0.2);
}

.page-about .figure-item {
  display: grid;
  gap: 0.3rem;
  padding: 1.35rem 1.1rem;
  background: var(--pine);
  transition: background var(--dur, 210ms) var(--ease, ease);
}

.page-about .figure-item:hover {
  background: #1b5247;
}

.page-about .figure-item__num {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.3rem, 8vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--paper);
  transition: color var(--dur, 210ms) var(--ease, ease);
}

.page-about .figure-item:hover .figure-item__num {
  color: var(--autumn);
}

.page-about .figure-item__label {
  font-size: var(--fs-small);
  color: rgba(250, 248, 243, 0.86);
}

.page-about .figure-item__note {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.02em;
  color: rgba(250, 248, 243, 0.55);
  line-height: 1.6;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: 2rem;
  margin-top: 1.25rem;
}

.page-about .about-team__text p {
  margin: 0 0 1.1rem;
  font-size: var(--fs-body);
  line-height: 1.85;
  max-width: 38rem;
}

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

.page-about .about-figure--aside {
  margin-bottom: 0;
}

/* ---------- 场景 ---------- */
.page-about .scenes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.75rem;
}

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

.page-about .scene__tag {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.18em;
  color: var(--tone, var(--spring));
}

.page-about .scene__name {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--fs-h3);
  letter-spacing: 0.02em;
}

.page-about .scene__text {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--moss);
}

/* ---------- 三条做法 ---------- */
.page-about .pledges {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.page-about .pledge {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.9rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
}

.page-about .pledge__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.1em;
  color: var(--tone, var(--spring));
  padding-top: 0.28rem;
}

.page-about .pledge__name {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--fs-h3);
  letter-spacing: 0.02em;
}

.page-about .pledge__text {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--moss);
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  padding-block: var(--about-gap);
  border-top: 1px solid var(--line);
}

.page-about .about-next__title {
  margin: 0 0 1.5rem;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--fs-h2);
  letter-spacing: 0.03em;
  line-height: 1.3;
}

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

.page-about .about-next__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  font-size: var(--fs-body);
  line-height: 1.6;
  transition: background var(--dur, 210ms) var(--ease, ease),
    padding-left var(--dur, 210ms) var(--ease, ease);
}

.page-about .about-next__links a:hover,
.page-about .about-next__links a:focus-visible {
  background: var(--sand);
  padding-left: 1.5rem;
}

.page-about .about-next__arrow {
  font-family: var(--font-mono);
  color: var(--spring);
  flex: none;
}

.page-about .about-next__hint {
  margin: 1.25rem 0 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--moss);
}

.page-about .about-next__hint a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--autumn);
  text-underline-offset: 3px;
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-about .about-hero__title {
    max-width: 18ch;
  }

  .page-about .about-columns {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }

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

  .page-about .figure-item {
    padding: 1.6rem 1.4rem;
  }

  .page-about .scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem 2.5rem;
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    grid-template-rows: auto auto auto;
    column-gap: clamp(2rem, 5vw, 4rem);
    row-gap: 1.5rem;
    align-items: start;
  }

  .page-about .about-hero__eyebrow {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .page-about .about-hero__title {
    grid-column: 1;
    grid-row: 2 / span 2;
  }

  .page-about .about-hero__lead {
    grid-column: 2;
    grid-row: 2;
  }

  .page-about .about-hero__facts {
    grid-column: 2;
    grid-row: 3;
  }

  .page-about .tl__item {
    padding-left: 3rem;
    padding-bottom: 2.5rem;
  }

  .page-about .tl__item:nth-child(even) .tl__body {
    margin-left: 3.5rem;
  }

  .page-about .tl__text {
    max-width: 34rem;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
  }

  .page-about .about-figure--aside {
    margin-top: -1.5rem;
  }

  .page-about .pledges {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }

  .page-about .pledge {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.6rem;
  }

  .page-about .pledge__idx {
    padding-top: 0;
  }
}
<<<PAGE_CSS_SENTINEL>>>
</main>