.page-about {
  background: var(--paper);
  color: var(--ink);
}

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

.page-about .about-coord {
  border-bottom: 1px solid var(--hair-line);
  background: var(--paper);
}

.page-about .about-coord__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  padding-top: 14px;
  padding-bottom: 14px;
  border-top: 3px solid var(--sea);
}

.page-about .about-coord__meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  padding: clamp(30px, 5vw, 72px) 0 clamp(30px, 5vw, 64px);
  background:
    linear-gradient(180deg, rgba(221, 233, 241, 0.55), rgba(247, 242, 232, 0) 46%),
    var(--paper);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
}

.page-about .about-hero h1 {
  margin: 12px 0 18px;
  font-size: clamp(34px, 5.6vw, 66px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--sea);
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 48ch;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--ink);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-about .about-hero__panel {
  position: relative;
  overflow: hidden;
  background: var(--sea);
  color: var(--paper);
  padding: clamp(22px, 3vw, 34px);
  border-top: 3px solid var(--coral);
}

.page-about .about-hero__panel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: clamp(84px, 12vw, 132px);
  aspect-ratio: 1 / 1;
  background: var(--coral);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
}

.page-about .about-hero__panel > * {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hair-light);
}

.page-about .about-hero__panel-head .mono {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 18px 0 0;
  background: var(--hair-light);
  border: 1px solid var(--hair-light);
}

.page-about .about-hero__stat {
  background: var(--sea);
  padding: 14px 12px 16px;
}

.page-about .about-hero__stat dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(247, 242, 232, 0.72);
}

.page-about .about-hero__stat dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.05;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-hero__stat dd span {
  margin-left: 4px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--gold);
}

.page-about .about-hero__note {
  margin: 18px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--coral);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(247, 242, 232, 0.8);
}

@media (min-width: 920px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .about-hero__panel {
    margin-top: 12px;
  }
}

/* ---------- 品牌起点 ---------- */
.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-origin__text h2 {
  margin: 10px 0 16px;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  font-weight: 900;
  color: var(--sea);
}

.page-about .about-origin__text p {
  margin: 0 0 16px;
  font-size: clamp(15.5px, 1.4vw, 17px);
  line-height: 1.85;
  color: var(--ink);
}

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

.page-about .about-origin__aside {
  background: var(--white);
  border: 1px solid var(--hair-line);
  border-top: 3px solid var(--gold);
  padding: clamp(20px, 3vw, 28px);
}

.page-about .about-origin__aside-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-about .about-origin__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-origin__list li {
  display: flex;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--hair-line);
}

.page-about .about-origin__list li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .about-origin__list .mono {
  flex: 0 0 26px;
  font-size: 12px;
  color: var(--coral-deep);
  padding-top: 3px;
}

.page-about .about-origin__list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-about .about-origin__list strong {
  display: block;
  margin-bottom: 2px;
  font-size: 16px;
  color: var(--sea);
}

@media (min-width: 900px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 5vw, 72px);
  }
}

/* ---------- 时间轴 ---------- */
.page-about .about-sec-head {
  max-width: 760px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-about .about-sec-head h2 {
  margin: 8px 0 12px;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.015em;
  font-weight: 900;
  color: var(--sea);
}

.page-about .about-sec-head__sub {
  margin: 0;
  font-size: clamp(15px, 1.4vw, 16.5px);
  line-height: 1.78;
  color: var(--slate);
}

.page-about .about-timeline__figure {
  margin: 0 0 clamp(26px, 4vw, 44px);
}

.page-about .about-timeline__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
}

.page-about .about-years {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hair-line);
  -webkit-overflow-scrolling: touch;
}

.page-about .about-year-link {
  flex: 0 0 auto;
  padding: 8px 11px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--sea);
  text-decoration: none;
  border: 1px solid var(--hair-gold);
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-year-link:hover,
.page-about .about-year-link:focus-visible {
  background: var(--sea);
  border-color: var(--sea);
  color: var(--paper);
}

.page-about .about-milestones {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-milestones::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--hair-gold), rgba(200, 164, 93, 0.12));
}

.page-about .about-milestone {
  position: relative;
  padding: 0 12px clamp(26px, 3.4vw, 40px) clamp(26px, 3vw, 36px);
}

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

.page-about .about-milestone::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 15px;
  height: 15px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--gold);
}

.page-about .about-milestone--key::before {
  background: var(--coral);
  border-color: var(--coral);
}

.page-about .about-milestone__year {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1;
  letter-spacing: 0.05em;
  color: var(--sea);
}

.page-about .about-milestone h3 {
  margin: 10px 0 8px;
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.35;
  font-weight: 800;
  color: var(--ink);
}

.page-about .about-milestone p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: rgba(16, 24, 32, 0.88);
}

.page-about .about-milestone:target {
  background: linear-gradient(90deg, rgba(221, 233, 241, 0.9), rgba(221, 233, 241, 0) 82%);
}

@media (min-width: 980px) {
  .page-about .about-timeline__body {
    grid-template-columns: 152px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
  }

  .page-about .about-years {
    flex-direction: column;
    gap: 2px;
    align-self: start;
    position: sticky;
    top: 88px;
    overflow: visible;
    padding-bottom: 0;
    border-bottom: 0;
    border-left: 1px solid var(--hair-gold);
  }

  .page-about .about-year-link {
    margin-left: -1px;
    padding: 9px 12px;
    font-size: 15px;
    border: 0;
    border-left: 2px solid transparent;
  }

  .page-about .about-year-link:hover,
  .page-about .about-year-link:focus-visible {
    background: transparent;
    color: var(--coral-deep);
    border-left-color: var(--coral);
  }
}

/* ---------- 团队 ---------- */
.page-about .about-team__intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-about .about-team__intro-text h2 {
  margin: 10px 0 14px;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  font-weight: 900;
  color: var(--sea);
}

.page-about .about-team__intro-text p {
  margin: 0;
  font-size: clamp(15.5px, 1.4vw, 17px);
  line-height: 1.82;
  color: var(--ink);
}

.page-about .about-team__figure {
  margin: 0;
}

.page-about .about-team__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-about .about-team-block {
  --about-accent: var(--gold);
  position: relative;
  background: var(--white);
  border: 1px solid var(--hair-line);
  padding: 26px 22px 26px;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .about-team-block::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: var(--about-accent);
}

.page-about .about-team-block--ops {
  --about-accent: var(--coral);
}

.page-about .about-team-block--design {
  --about-accent: var(--gold);
}

.page-about .about-team-block--tech {
  --about-accent: var(--celadon);
}

.page-about .about-team-block:hover,
.page-about .about-team-block:focus-within {
  transform: translateY(-4px);
  border-color: var(--coral);
  box-shadow: 0 12px 26px rgba(11, 46, 79, 0.1);
}

.page-about .about-team-block__idx {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.page-about .about-team-block h3 {
  margin: 8px 0 10px;
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.25;
  font-weight: 800;
  color: var(--sea);
}

.page-about .about-team-block p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(16, 24, 32, 0.9);
}

.page-about .about-team-block__meta {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--hair-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--coral-deep);
}

@media (min-width: 820px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 18px;
  }

  .page-about .about-team-block--design {
    margin-top: 30px;
  }

  .page-about .about-team-block--tech {
    margin-top: 62px;
  }
}

@media (min-width: 900px) {
  .page-about .about-team__intro {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(28px, 4vw, 56px);
  }
}

/* ---------- 内容能力 ---------- */
.page-about .about-capacity {
  position: relative;
  background: var(--sea);
  color: var(--paper);
  overflow: hidden;
}

.page-about .about-capacity::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(247, 242, 232, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247, 242, 232, 0.07) 1px, transparent 1px);
  background-size: 68px 68px;
  pointer-events: none;
}

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

.page-about .about-sec-head--light h2 {
  color: var(--white);
}

.page-about .about-sec-head--light .about-sec-head__sub {
  color: rgba(247, 242, 232, 0.82);
}

.page-about .about-sec-head--light .eyebrow {
  color: var(--gold);
}

.page-about .about-capacity__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 48px);
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-about .about-capacity__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--hair-light);
  border: 1px solid var(--hair-light);
}

.page-about .about-capacity__stat {
  background: var(--sea);
  padding: 18px 16px 20px;
}

.page-about .about-capacity__stat dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(247, 242, 232, 0.7);
}

.page-about .about-capacity__stat dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-capacity__stat dd span {
  margin-left: 5px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--gold);
}

.page-about .about-capacity__side-label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-about .about-capacity__cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-capacity__cats li {
  padding: 7px 13px;
  font-size: 13px;
  color: var(--paper);
  border: 1px solid rgba(200, 164, 93, 0.5);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .about-capacity__cats li:hover {
  border-color: var(--coral);
  color: var(--coral);
}

.page-about .about-capacity__side-note {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(247, 242, 232, 0.82);
}

.page-about .about-capacity__figure {
  margin: 0;
  border: 1px solid var(--hair-light);
}

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

/* ---------- 合作生态 ---------- */
.page-about .about-eco__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair-line);
}

.page-about .about-eco__row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 20px 0 20px 28px;
  border-bottom: 1px solid var(--hair-line);
  transition: background-color 0.18s var(--ease);
}

.page-about .about-eco__row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 27px;
  width: 12px;
  height: 12px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--gold);
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-eco__row:hover {
  background: rgba(221, 233, 241, 0.42);
}

.page-about .about-eco__row:hover::before {
  background: var(--coral);
  border-color: var(--coral);
}

.page-about .about-eco__row h3 {
  margin: 0;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 800;
  color: var(--sea);
}

.page-about .about-eco__row p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(16, 24, 32, 0.88);
}

.page-about .about-eco__tag {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-about .about-eco__note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
}

.page-about .about-eco__link {
  color: var(--coral-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--hair-gold);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .about-eco__link:hover,
.page-about .about-eco__link:focus-visible {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

@media (min-width: 780px) {
  .page-about .about-eco__row {
    grid-template-columns: 176px minmax(0, 1fr) 110px;
    align-items: baseline;
    gap: 6px 24px;
    padding-left: 40px;
    padding-top: 24px;
    padding-bottom: 24px;
  }

  .page-about .about-eco__row::before {
    top: 30px;
  }

  .page-about .about-eco__row::after {
    content: "";
    position: absolute;
    left: 12px;
    top: 36px;
    width: 20px;
    height: 1px;
    background: var(--hair-gold);
  }

  .page-about .about-eco__tag {
    text-align: right;
  }
}

/* ---------- 服务承诺 ---------- */
.page-about .about-promise__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-about .about-promise__grid li {
  background: var(--white);
  border: 1px solid var(--hair-line);
  border-left: 3px solid var(--coral);
  padding: 22px 22px 24px;
}

.page-about .about-promise__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-about .about-promise__grid h3 {
  margin: 8px 0 10px;
  font-size: clamp(18px, 1.9vw, 21px);
  font-weight: 800;
  color: var(--sea);
}

.page-about .about-promise__grid p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(16, 24, 32, 0.88);
}

@media (min-width: 860px) {
  .page-about .about-promise__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 结尾 ---------- */
.page-about .about-cta {
  background: var(--ink);
  color: var(--paper);
  border-top: 3px solid var(--coral);
}

.page-about .about-cta__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: clamp(20px, 3vw, 40px);
}

.page-about .about-cta__text {
  max-width: 56ch;
}

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

.page-about .about-cta h2 {
  margin: 8px 0 10px;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  font-weight: 900;
  color: var(--white);
}

.page-about .about-cta__text p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(247, 242, 232, 0.82);
}

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

.page-about .about-cta .btn--ghost {
  color: var(--paper);
  border-color: var(--hair-gold);
}

.page-about .about-cta .btn--ghost:hover,
.page-about .about-cta .btn--ghost:focus-visible {
  color: var(--coral);
  border-color: var(--coral);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-team-block,
  .page-about .about-year-link,
  .page-about .about-eco__row,
  .page-about .about-eco__row::before,
  .page-about .about-capacity__cats li,
  .page-about .about-eco__link {
    transition: none;
  }

  .page-about .about-team-block:hover,
  .page-about .about-team-block:focus-within {
    transform: none;
  }
}
<<<END>>>