.page-about {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-about [id] {
  scroll-margin-top: 92px;
}

.page-about a {
  color: var(--sea);
  text-decoration-color: rgba(242, 107, 78, .55);
  text-underline-offset: 3px;
}

.page-about a:hover {
  color: var(--coral);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(18px, 3vw, 28px) clamp(34px, 6vw, 72px);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: -160px;
  right: -120px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(242, 107, 78, .13), rgba(233, 180, 76, .08) 55%, transparent 72%);
  pointer-events: none;
}

.page-about .about-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-about .crumbs {
  margin-bottom: clamp(16px, 3vw, 26px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .about-hero__title {
  margin: 10px 0 0;
  font-size: clamp(30px, 6.6vw, 66px);
  line-height: 1.07;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--sea-deep);
}

.page-about .about-hero__text .lede {
  margin-top: clamp(14px, 2.5vw, 20px);
  max-width: 46ch;
  color: var(--ink);
}

.page-about .about-hero__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
}

.page-about .about-hero__figure {
  margin: 0;
  position: relative;
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-paper);
}

.page-about .about-hero__figure .figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--rock);
}

/* ---------- 正文骨架 ---------- */
.page-about .about-body {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  padding-block: clamp(24px, 4vw, 36px) clamp(40px, 7vw, 84px);
}

.page-about .about-index {
  border-top: 2px solid var(--sea);
  padding-top: 12px;
}

.page-about .about-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-about .about-index ol {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-index a {
  display: flex;
  align-items: baseline;
  gap: 7px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--rock);
  text-decoration: none;
  padding: 7px 11px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: var(--paper);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-index a span {
  font-size: 10.5px;
  color: var(--coral);
}

.page-about .about-index a:hover,
.page-about .about-index a:focus-visible {
  color: var(--sea);
  border-color: var(--coral);
  background: var(--sand);
}

/* ---------- 章节 ---------- */
.page-about .about-sec {
  padding-block: clamp(26px, 4vw, 44px);
}

.page-about .about-sec + .about-sec {
  border-top: 1px solid var(--line-soft);
}

.page-about .about-sec h2 {
  margin: 8px 0 clamp(12px, 2vw, 18px);
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.18;
  letter-spacing: -.01em;
  font-weight: 900;
  color: var(--sea-deep);
}

.page-about .about-sec h3 {
  margin: 0 0 6px;
  font-size: clamp(16px, 1.9vw, 18px);
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-sec p {
  margin: 0 0 14px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.8;
}

.page-about .about-sec .lede {
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.75;
  color: var(--ink);
  max-width: 56ch;
}

/* ---------- 年份轨道 ---------- */
.page-about .rail {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0 0 0 22px;
  position: relative;
}

.page-about .rail::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--coral), var(--gold-a) 55%, var(--euca));
}

.page-about .rail__item {
  position: relative;
  padding-bottom: 22px;
}

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

.page-about .rail__item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 5px;
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--coral);
}

.page-about .rail__item:nth-child(3n+2)::before {
  border-color: var(--gold-a);
}

.page-about .rail__item:nth-child(3n)::before {
  border-color: var(--euca);
}

.page-about .rail__year {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--roo);
}

.page-about .rail__title {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .rail__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 56ch;
}

/* ---------- 场景卡 ---------- */
.page-about .scenes {
  display: grid;
  gap: 14px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .scenes__item {
  padding: 16px 16px 14px;
  border-left: 3px solid var(--sand-deep);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .scenes__item:nth-child(2n) {
  border-left-color: rgba(233, 180, 76, .7);
}

.page-about .scenes__item:nth-child(3n) {
  border-left-color: rgba(79, 122, 90, .55);
}

.page-about .scenes__item:hover {
  border-left-color: var(--coral);
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

.page-about .scenes__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--coral);
  margin-bottom: 8px;
}

.page-about .scenes__item h3 {
  color: var(--sea);
}

.page-about .scenes__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  max-width: none;
}

/* ---------- 数据条 ---------- */
.page-about .stats {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .stat-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  padding: 13px 6px;
  border-bottom: 1px solid var(--line-soft);
  transition: background var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-about .stat-row:hover {
  background: rgba(233, 180, 76, .13);
  padding-left: 12px;
}

.page-about .stat-row__num {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 600;
  color: var(--sea);
  letter-spacing: -.01em;
}

.page-about .stat-row__unit {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--roo);
}

.page-about .stat-row__label {
  flex: 1 1 200px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--rock);
}

/* ---------- 图片 ---------- */
.page-about .about-sec__figure {
  margin: clamp(22px, 3vw, 32px) 0 0;
}

.page-about .about-sec__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
}

.page-about .about-sec__figure .figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--rock);
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .team-role {
  border-top: 2px solid var(--sea);
  padding-top: 10px;
}

.page-about .team-role:nth-child(2) {
  border-top-color: var(--coral);
}

.page-about .team-role:nth-child(3) {
  border-top-color: var(--euca);
}

.page-about .team-role:nth-child(4) {
  border-top-color: var(--gold-a);
}

.page-about .team-role__name {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 700;
  color: var(--sea-deep);
}

.page-about .team-role__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
  max-width: none;
}

.page-about .support {
  margin-top: clamp(24px, 4vw, 34px);
  padding: clamp(18px, 3vw, 26px);
  background: var(--sand);
  border-radius: var(--radius-m);
  border: 1px solid var(--sand-deep);
}

.page-about .support__title {
  margin: 0 0 10px;
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--sea-deep);
}

.page-about .support p {
  max-width: 62ch;
}

.page-about .support__mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 16px 0 8px;
  padding-top: 14px;
  border-top: 1px dashed rgba(139, 94, 60, .35);
}

.page-about .support__mail-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--roo);
}

.page-about .support__mail-value {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--sea);
  word-break: break-all;
}

.page-about .support__copy-status {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--euca);
}

.page-about .support__note {
  margin: 0;
  font-size: 13.5px;
  color: var(--rock);
}

/* ---------- 深海蓝收束段 ---------- */
.page-about .about-sea {
  position: relative;
  overflow: hidden;
  background: linear-gradient(158deg, var(--sea) 0%, var(--sea-deep) 100%);
  color: var(--paper);
  padding-block: clamp(44px, 7vw, 92px);
}

.page-about .about-sea .wrap {
  position: relative;
  z-index: 1;
}

.page-about .about-sea__wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 110px;
  color: rgba(246, 207, 122, .35);
  pointer-events: none;
}

.page-about .about-sea .eyebrow {
  color: var(--gold-b);
}

.page-about .about-sea h2 {
  margin: 8px 0 10px;
  font-size: clamp(25px, 4vw, 44px);
  line-height: 1.16;
  letter-spacing: -.015em;
  font-weight: 900;
  color: var(--paper);
}

.page-about .about-sea__lede {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.8;
  color: rgba(251, 247, 239, .84);
}

.page-about .reasons {
  display: grid;
  gap: 18px;
  margin-top: clamp(22px, 4vw, 36px);
}

.page-about .reasons__item {
  border-top: 1px solid rgba(251, 247, 239, .26);
  padding-top: 12px;
}

.page-about .reasons__idx {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold-b);
}

.page-about .reasons__item h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .reasons__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(251, 247, 239, .82);
}

.page-about .about-sea__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-about .about-sea__link {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--gold-b);
  text-decoration: none;
  border-bottom: 1px solid rgba(246, 207, 122, .5);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-sea__link:hover,
.page-about .about-sea__link:focus-visible {
  color: var(--paper);
  border-color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .rail__item {
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr);
    column-gap: 16px;
  }

  .page-about .rail__year {
    grid-column: 1;
    grid-row: 1 / span 2;
    margin-bottom: 0;
    padding-top: 3px;
    text-align: right;
  }

  .page-about .rail__title,
  .page-about .rail__text {
    grid-column: 2;
  }
}

@media (min-width: 760px) {
  .page-about .scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .scenes__item--wide {
    grid-column: 1 / -1;
  }

  .page-about .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 28px;
  }

  .page-about .reasons {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px 26px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-about .about-hero__figure {
    transform: rotate(-1.4deg);
    transition: transform var(--dur) var(--ease);
  }

  .page-about .about-hero__figure:hover {
    transform: rotate(0deg);
  }
}

@media (min-width: 1000px) {
  .page-about .about-body {
    grid-template-columns: 200px minmax(0, 1fr);
    column-gap: clamp(32px, 5vw, 64px);
  }

  .page-about .about-index {
    position: sticky;
    top: 92px;
  }

  .page-about .about-index ol {
    flex-direction: column;
    overflow: visible;
    gap: 0;
    padding-bottom: 0;
  }

  .page-about .about-index a {
    border: 0;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 0;
    background: transparent;
    padding: 10px 0;
    white-space: normal;
    font-size: 12.5px;
  }

  .page-about .about-index a:hover,
  .page-about .about-index a:focus-visible {
    background: transparent;
    padding-left: 6px;
  }

  .page-about .about-flow {
    max-width: 78ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
  }

  .page-about .about-hero__figure {
    transform: none !important;
  }
}
<<<PAGE_CSS_END>>>