.page-about {
  --about-axis-x: 16px;
  --about-pad: clamp(56px, 9vw, 108px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--walnut);
  padding: clamp(26px, 4vw, 40px) 0 clamp(48px, 8vw, 96px);
}

.page-about .about-hero__shard {
  position: absolute;
  top: -18%;
  right: -14%;
  width: 62%;
  height: 136%;
  background: linear-gradient(158deg, rgba(16, 85, 76, .92) 0%, rgba(56, 42, 94, .82) 52%, rgba(107, 34, 51, .74) 100%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 100%);
  opacity: .62;
  pointer-events: none;
}

.page-about .about-hero__frame {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-about .about-hero__crumb {
  color: var(--mist);
  font-size: 13px;
  letter-spacing: .04em;
}

.page-about .about-hero__crumb a {
  color: var(--mist);
  text-decoration: none;
}

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

.page-about .about-hero__eyebrow {
  color: var(--gold);
  margin: 0;
}

.page-about .about-hero__title {
  margin: 0;
  color: var(--cream);
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 60ch;
  color: var(--cream);
  opacity: .9;
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.85;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: clamp(6px, 1.4vw, 14px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-hero__fact {
  background: rgba(42, 26, 18, .72);
  padding: 16px 18px;
  display: grid;
  gap: 4px;
}

.page-about .about-hero__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--signal);
  line-height: 1.1;
}

.page-about .about-hero__lbl {
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(6px, 1.6vw, 16px);
}

/* ---------- 通用章节头 ---------- */
.page-about .about-head {
  display: grid;
  gap: 12px;
  max-width: 64ch;
  margin: 0 0 clamp(28px, 4.4vw, 48px);
}

.page-about .about-head .eyebrow {
  margin: 0;
  color: var(--gold);
}

.page-about .about-head h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(27px, 4.1vw, 44px);
  line-height: 1.16;
  letter-spacing: -0.015em;
}

.page-about .about-head__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.85;
  opacity: .92;
}

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

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

.page-about .about-head--light .about-head__lede {
  color: var(--muted-on-light);
  opacity: 1;
}

/* ---------- 起源 / 时间轴 ---------- */
.page-about .about-origin {
  padding-top: var(--about-pad);
  padding-bottom: var(--about-pad);
}

.page-about .about-origin__body {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

.page-about .about-axis {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(26px, 4vw, 42px);
}

.page-about .about-axis::before {
  content: "";
  position: absolute;
  left: var(--about-axis-x);
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold) 0%, var(--oasis-bright) 46%, var(--indigo) 100%);
  opacity: .7;
}

.page-about .about-axis__item {
  position: relative;
  padding-left: 52px;
}

.page-about .about-axis__dot {
  position: absolute;
  left: calc(var(--about-axis-x) - 7px);
  top: 8px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--walnut-2);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 4px rgba(216, 154, 46, .13);
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.page-about .about-axis__item:hover .about-axis__dot {
  transform: scale(1.18);
  border-color: var(--signal);
  box-shadow: 0 0 0 6px rgba(255, 106, 43, .18);
}

.page-about .about-axis__body {
  display: grid;
  gap: 8px;
}

.page-about .about-axis__ver {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-about .about-axis__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(19px, 2.3vw, 24px);
  line-height: 1.35;
  color: var(--cream);
}

.page-about .about-axis__text {
  margin: 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.88;
  color: var(--mist);
}

.page-about .about-axis__module {
  margin: 4px 0 0;
}

.page-about .about-axis__module .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  padding: 4px 10px;
  border: 1px solid var(--line-strong-dark);
  border-radius: var(--radius);
  color: var(--mist);
  transition: color var(--ease), background var(--ease), border-color var(--ease);
}

.page-about .about-axis__item:hover .about-axis__module .tag {
  color: var(--walnut);
  background: var(--gold);
  border-color: var(--gold);
}

.page-about .about-origin__side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-about .about-origin__figure {
  margin: 0;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
  transition: transform var(--ease), box-shadow var(--ease);
}

.page-about .about-origin__figure:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-panel-hover);
}

.page-about .about-origin__figure .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-origin__figure .media__caption {
  padding: 12px 16px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  border-top: 1px solid var(--line-dark);
}

.page-about .about-origin__note {
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--gold);
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

.page-about .about-origin__note a {
  color: var(--gold);
}

/* ---------- 校对流程 ---------- */
.page-about .about-flow {
  padding-top: var(--about-pad);
  padding-bottom: var(--about-pad);
}

.page-about .about-flow__grid {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-about .about-flow__step {
  border-top: 1px solid var(--line-light);
  padding-top: 20px;
  display: grid;
  gap: 10px;
}

.page-about .about-flow__step .sec-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--wine);
}

.page-about .about-flow__step h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(19px, 2.3vw, 24px);
  color: var(--ink);
  line-height: 1.35;
}

.page-about .about-flow__step p {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.88;
  color: var(--muted-on-light);
}

.page-about .about-flow__bands {
  margin-top: clamp(28px, 4vw, 46px);
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: rgba(23, 17, 12, .03);
}

.page-about .about-flow__bands-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--wine);
  text-transform: uppercase;
}

.page-about .about-flow__bands-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  gap: 8px;
}

.page-about .about-band {
  display: block;
  text-align: center;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  padding: 10px 6px;
  border: 1px solid rgba(30, 142, 120, .4);
  border-radius: var(--radius);
  color: var(--oasis);
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.page-about .about-band:hover {
  background: var(--oasis);
  color: var(--cream);
  border-color: var(--oasis);
}

.page-about .about-flow__bands-note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-on-light);
}

.page-about .about-flow__figure {
  margin: clamp(28px, 4vw, 46px) 0 0;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
  transition: transform var(--ease), box-shadow var(--ease);
}

.page-about .about-flow__figure:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-panel-hover);
}

.page-about .about-flow__figure .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-flow__figure .media__caption {
  padding: 12px 16px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted-on-light);
  border-top: 1px solid var(--line-light);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding-top: var(--about-pad);
  padding-bottom: var(--about-pad);
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(16px, 2.6vw, 24px);
}

.page-about .about-team__card {
  padding: clamp(20px, 3vw, 30px);
  display: grid;
  gap: 10px;
  align-content: start;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.page-about .about-team__card:hover {
  transform: translateY(-2px);
  border-color: rgba(216, 154, 46, .5);
}

.page-about .about-team__count {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(36px, 5.6vw, 56px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--signal);
}

.page-about .about-team__role {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--cream);
}

.page-about .about-team__desc {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--mist);
}

.page-about .about-team__keys {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-team__keys li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  padding: 3px 9px;
  border: 1px solid var(--line-strong-dark);
  border-radius: var(--radius);
  color: var(--mist);
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.page-about .about-team__card:hover .about-team__keys li {
  color: var(--gold);
  border-color: rgba(216, 154, 46, .55);
}

.page-about .about-team__foot {
  margin: clamp(24px, 3.6vw, 40px) 0 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--mist);
  padding-left: 16px;
  border-left: 2px solid var(--oasis-bright);
}

/* ---------- 覆盖范围 ---------- */
.page-about .about-reach {
  padding: 0 0 var(--about-pad);
}

.page-about .about-reach__figure {
  margin: 0 0 clamp(36px, 6vw, 64px);
  overflow: hidden;
  border-bottom: 1px solid var(--line-dark);
}

.page-about .about-reach__figure .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  max-height: 46vh;
}

.page-about .about-reach__figure .media__caption {
  padding: 12px var(--frame-pad);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  background: rgba(23, 17, 12, .2);
}

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

.page-about .about-reach .about-head h2 {
  color: var(--cream);
}

.page-about .about-reach .about-head__lede {
  color: var(--cream);
  opacity: .88;
}

.page-about .about-reach__stats {
  display: grid;
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-about .about-reach__stat {
  background: rgba(23, 17, 12, .22);
  padding: 20px 22px;
  display: grid;
  gap: 6px;
}

.page-about .about-reach__stat .stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--signal);
}

.page-about .about-reach__stat .stat__label {
  font-size: 13px;
  letter-spacing: .06em;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-reach__split {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-about .about-reach__block {
  padding-top: 18px;
  border-top: 1px solid var(--line-strong-dark);
  display: grid;
  gap: 10px;
}

.page-about .about-reach__block h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(17px, 2.1vw, 21px);
  color: var(--cream);
  line-height: 1.4;
}

.page-about .about-reach__block p {
  margin: 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--mist);
}

.page-about .about-reach__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 44px);
}

/* ---------- 价值观 ---------- */
.page-about .about-values {
  padding-top: var(--about-pad);
  padding-bottom: var(--about-pad);
}

.page-about .about-values__list {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-about .about-values__item {
  border-left: 3px solid var(--gold);
  padding: 4px 0 4px clamp(16px, 2.4vw, 26px);
  display: grid;
  gap: 8px;
  transition: border-color var(--ease);
}

.page-about .about-values__item:hover {
  border-color: var(--signal);
}

.page-about .about-values__item h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(18px, 2.3vw, 23px);
  line-height: 1.4;
  color: var(--ink);
}

.page-about .about-values__item p {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.88;
  color: var(--muted-on-light);
}

.page-about .about-close {
  margin-top: clamp(32px, 5vw, 56px);
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--indigo);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  display: grid;
  gap: 12px;
}

.page-about .about-close__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(18px, 2.3vw, 22px);
  color: var(--cream);
  line-height: 1.4;
}

.page-about .about-close__text {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--mist);
}

.page-about .about-close__text a {
  color: var(--gold);
}

/* ---------- 断点：移动端优先向桌面递进 ---------- */
@media (max-width: 599px) {
  .page-about .about-hero__shard {
    top: auto;
    bottom: -30%;
    right: -40%;
    width: 130%;
    height: 70%;
    clip-path: polygon(0 34%, 100% 0, 100% 100%, 0 100%);
    opacity: .5;
  }

  .page-about .about-hero__title {
    max-width: none;
  }

  .page-about .about-hero__facts {
    grid-template-columns: 1fr;
  }
}

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

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

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

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

@media (min-width: 900px) {
  .page-about .about-origin__body {
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, .82fr);
    gap: clamp(36px, 5vw, 68px);
    align-items: start;
  }

  .page-about .about-origin__side {
    margin-top: clamp(28px, 5vw, 72px);
  }

  .page-about .about-values__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 3.4vw, 40px);
  }

  .page-about .about-values__item {
    padding-left: clamp(14px, 1.8vw, 22px);
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero__frame {
    padding-right: 8%;
  }
}
<<<END>>>