.page-about {
  --about-line: rgba(244, 239, 227, 0.16);
  --about-dim: #c6bfae;
  --about-ink-soft: rgba(244, 239, 227, 0.72);
  --about-cut: 34px;
  background: var(--ivory-100);
  color: var(--stone-700);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-block: clamp(22px, 4vw, 46px) clamp(44px, 7vw, 96px);
  color: var(--ivory-100);
  background:
    radial-gradient(120% 90% at 84% 6%, rgba(201, 162, 74, 0.24), transparent 60%),
    linear-gradient(158deg, var(--ink-800) 0%, var(--ink-900) 62%, var(--ink-700) 100%);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 14px;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(230, 199, 126, 0.55) 0 1px,
    transparent 1px 18px
  );
  opacity: 0.5;
  pointer-events: none;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 54px);
  align-items: start;
}

.page-about .about-crumb {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-about .about-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--about-ink-soft);
}

.page-about .about-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--moss-600);
}

.page-about .about-crumb a {
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms var(--ease);
}

.page-about .about-crumb a:hover {
  border-bottom-color: var(--gold-300);
}

.page-about .about-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-300);
}

.page-about .about-hero__title {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 8vw, 5.4rem);
  line-height: 1.02;
  letter-spacing: 0.02em;
  color: var(--ivory-100);
}

.page-about .about-hero__hl {
  color: var(--gold-300);
  position: relative;
  display: inline-block;
}

.page-about .about-hero__hl::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.14em;
  background: linear-gradient(90deg, var(--gold-500), rgba(201, 162, 74, 0));
  transform: skewX(-14deg);
}

.page-about .about-hero__lede {
  max-width: 46ch;
  margin: 0 0 clamp(22px, 3vw, 32px);
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.8;
  color: var(--about-dim);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(10px, 2vw, 18px);
  margin: 0 0 clamp(24px, 3.4vw, 34px);
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-line);
  padding-top: 18px;
}

.page-about .about-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  font-weight: 700;
  color: var(--gold-300);
  letter-spacing: 0.02em;
}

.page-about .about-hero__cap {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--about-ink-soft);
}

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

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

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 40px), calc(100% - 40px) 100%, 0 100%);
  border: 1px solid rgba(230, 199, 126, 0.35);
}

.page-about .about-hero__note {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--about-ink-soft);
}

/* ---------- 斜切过渡 ---------- */
.page-about .about-slant {
  height: clamp(28px, 5vw, 56px);
  background: var(--ink-700);
  clip-path: polygon(0 0, 100% 0, 100% 0, 0 100%);
  margin-top: -1px;
}

/* ---------- 通用章节头 ---------- */
.page-about .about-eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--moss-600);
}

.page-about .about-eyebrow--gold {
  color: var(--gold-500);
}

.page-about .about-h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 4.2vw, 2.9rem);
  line-height: 1.24;
  letter-spacing: 0.02em;
  color: var(--ink-900);
}

.page-about .about-h2--light {
  color: var(--ivory-100);
}

.page-about .about-h3 {
  margin: 10px 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.4;
  color: var(--ink-900);
}

.page-about .about-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .about-sec-head__note {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone-400);
}

.page-about .about-sec-head--tight .about-sec-head__note {
  color: var(--about-dim);
}

/* ---------- 起点 ---------- */
.page-about .about-origin {
  padding-block: clamp(44px, 7vw, 92px);
  background: var(--ivory-100);
}

.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 56px);
}

.page-about .about-origin__body p {
  margin: 0 0 18px;
  font-size: clamp(1rem, 1.4vw, 1.06rem);
  line-height: 1.85;
  color: var(--stone-700);
}

.page-about .about-quote {
  margin: 26px 0;
  padding: 4px 0 4px 22px;
  border-left: 4px solid var(--gold-500);
}

.page-about .about-quote p {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  line-height: 1.5;
  color: var(--ink-900);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  padding-block: clamp(44px, 7vw, 92px);
  color: var(--ivory-100);
  background:
    linear-gradient(180deg, var(--ink-800), var(--ink-900) 78%);
}

.page-about .about-track {
  display: block;
  width: 100%;
  height: 30px;
  color: var(--gold-500);
  opacity: 0.85;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-about .about-timeline__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 42px);
}

.page-about .about-years {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid var(--about-line);
  padding-top: 16px;
}

.page-about .about-year {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  text-decoration: none;
  border: 1px solid var(--about-line);
  background: rgba(11, 43, 36, 0.55);
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-about .about-year:hover,
.page-about .about-year[aria-current="true"] {
  border-color: var(--gold-500);
  background: rgba(201, 162, 74, 0.16);
  transform: translateY(-2px);
}

.page-about .about-year__num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--gold-300);
  letter-spacing: 0.04em;
}

.page-about .about-year__name {
  font-size: 12px;
  color: var(--about-dim);
  letter-spacing: 0.05em;
}

.page-about .about-flow {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
}

.page-about .about-node {
  position: relative;
  padding: 20px 20px 20px 24px;
  background: rgba(243, 239, 227, 0.045);
  border-left: 3px solid var(--moss-600);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-about .about-node:hover,
.page-about .about-node:focus-within {
  background: rgba(243, 239, 227, 0.085);
  border-left-color: var(--gold-500);
  transform: translateY(-4px);
}

.page-about .about-node__year {
  display: inline-block;
  margin: 0;
  padding: 3px 11px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink-900);
  background: var(--gold-500);
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-about .about-node .about-h3 {
  color: var(--ivory-100);
}

.page-about .about-node p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-dim);
}

.page-about .about-node__extra {
  margin: 0 !important;
  font-family: var(--font-mono);
  font-size: 12px !important;
  line-height: 1.7 !important;
  color: var(--moss-600) !important;
  border-top: 1px dashed var(--about-line);
  padding-top: 10px;
}

.page-about .about-node:hover .about-node__extra,
.page-about .about-node:focus-within .about-node__extra {
  color: var(--gold-300) !important;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding-block: clamp(44px, 7vw, 92px);
  background: var(--ivory-100);
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

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

.page-about .about-team__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-about .about-team__note {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--stone-400);
}

.page-about .about-team__lede {
  margin: 16px 0 22px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--stone-700);
}

.page-about .about-roles {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(58, 63, 59, 0.16);
}

.page-about .about-role {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid rgba(58, 63, 59, 0.16);
}

.page-about .about-role__n {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--gold-500);
  line-height: 1;
}

.page-about .about-role__body {
  font-size: 15px;
  line-height: 1.75;
  color: var(--stone-700);
}

.page-about .about-role__body strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--ink-900);
  margin-bottom: 2px;
}

.page-about .about-team__rhythm {
  margin: 0 0 18px;
  padding: 16px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-800);
  background: rgba(79, 122, 90, 0.12);
  border-left: 3px solid var(--moss-600);
}

.page-about .about-inline-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-900);
  text-decoration: none;
  border-bottom: 2px solid var(--gold-500);
  padding-bottom: 3px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-about .about-inline-link:hover {
  color: var(--moss-600);
  border-bottom-color: var(--moss-600);
}

/* ---------- 会员 ---------- */
.page-about .about-member {
  padding-block: clamp(44px, 7vw, 92px);
  background:
    radial-gradient(90% 70% at 12% 0%, rgba(201, 162, 74, 0.16), transparent 62%),
    var(--ink-900);
  color: var(--ivory-100);
}

.page-about .about-levels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 2vw, 18px);
  margin: 0 0 clamp(22px, 3vw, 32px);
  padding: 0;
  list-style: none;
}

.page-about .about-level {
  padding: 20px 18px 22px;
  background: rgba(243, 239, 227, 0.05);
  border-top: 2px solid var(--moss-600);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-about .about-level:hover {
  background: rgba(243, 239, 227, 0.1);
  border-top-color: var(--gold-500);
  transform: translateY(-4px);
}

.page-about .about-level__id {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold-500);
}

.page-about .about-level__name {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--ivory-100);
}

.page-about .about-level__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-dim);
}

.page-about .about-member__foot {
  display: grid;
  gap: 18px;
  align-items: center;
  border-top: 1px solid var(--about-line);
  padding-top: 22px;
}

.page-about .about-member__foot p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-dim);
}

/* ---------- 合作 ---------- */
.page-about .about-partners {
  padding-block: clamp(44px, 7vw, 92px);
  background: var(--ivory-100);
}

.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-about .about-partners__lede {
  margin: 16px 0 24px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--stone-700);
}

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

.page-about .about-partners__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), calc(100% - 32px) 100%, 0 100%);
}

.page-about .about-names {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(58, 63, 59, 0.2);
}

.page-about .about-name {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding: 10px 4px 10px 0;
  border-bottom: 1px solid rgba(58, 63, 59, 0.12);
  transition: padding-left 180ms var(--ease), background-color 180ms var(--ease);
}

.page-about .about-name:hover {
  padding-left: 10px;
  background: rgba(201, 162, 74, 0.14);
}

.page-about .about-name__id {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-900);
  min-width: 82px;
}

.page-about .about-name__type {
  font-size: 13px;
  color: var(--stone-400);
  opacity: 0.55;
  transition: opacity 180ms var(--ease), color 180ms var(--ease);
}

.page-about .about-name:hover .about-name__type {
  opacity: 1;
  color: var(--moss-600);
}

.page-about .about-certs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(12px, 2vw, 20px);
  margin-top: clamp(26px, 4vw, 40px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 2px solid var(--ink-800);
}

.page-about .about-cert__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold-500);
}

.page-about .about-cert__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--stone-700);
}

.page-about .about-certs__note {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--stone-400);
}

/* ---------- 服务 ---------- */
.page-about .about-service {
  padding-block: clamp(44px, 7vw, 92px);
  background: linear-gradient(200deg, var(--ink-800), var(--ink-900));
  color: var(--ivory-100);
}

.page-about .about-service__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-about .about-service__body p {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-dim);
}

.page-about .about-facts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0 0 24px;
  border-top: 1px solid var(--about-line);
}

.page-about .about-fact {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-fact dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--moss-600);
}

.page-about .about-fact dd {
  margin: 0;
  font-size: 14px;
  color: var(--ivory-100);
}

.page-about .about-service__panel {
  padding: 22px 20px 24px;
  background: rgba(243, 239, 227, 0.06);
  border: 1px solid rgba(230, 199, 126, 0.28);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-about .about-service__panel .tag {
  margin-bottom: 14px;
}

.page-about .about-service__clock {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gold-300);
}

.page-about .about-service__hint {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--about-dim);
}

.page-about .about-service__mail {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--ivory-100);
  word-break: break-all;
  border-bottom: 1px dashed var(--about-line);
  padding-bottom: 12px;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 720px) {
  .page-about .about-levels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-names {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 24px;
  }

  .page-about .about-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 24px;
  }

  .page-about .about-member__foot {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-about .about-hero__media img {
    aspect-ratio: 4 / 5;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-about .about-hero__media img {
    aspect-ratio: 3 / 4;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-about .about-origin__head {
    position: sticky;
    top: 120px;
  }

  .page-about .about-timeline__grid {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
  }

  .page-about .about-years {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
    position: sticky;
    top: 110px;
    border-top: 0;
    padding-top: 0;
    border-left: 1px solid var(--about-line);
    padding-left: 16px;
  }

  .page-about .about-year {
    clip-path: none;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    padding: 8px 8px 8px 10px;
  }

  .page-about .about-year:hover,
  .page-about .about-year[aria-current="true"] {
    border-left-color: var(--gold-500);
    background: rgba(201, 162, 74, 0.1);
    transform: none;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-about .about-team__media {
    position: sticky;
    top: 120px;
  }

  .page-about .about-levels {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-about .about-partners__media {
    position: sticky;
    top: 120px;
  }

  .page-about .about-certs {
    grid-template-columns: repeat(2, minmax(0, 160px)) minmax(0, 1fr);
    align-items: end;
  }

  .page-about .about-certs__note {
    grid-column: 3;
    text-align: right;
  }

  .page-about .about-service__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (min-width: 1200px) {
  .page-about .about-name__type {
    opacity: 0.45;
  }
}

@media (max-width: 719px) {
  .page-about .about-node__extra {
    border-top-style: solid;
  }

  .page-about .about-name__type {
    opacity: 0.85;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-year,
  .page-about .about-node,
  .page-about .about-level,
  .page-about .about-name,
  .page-about .about-name__type,
  .page-about .about-inline-link {
    transition: none;
  }

  .page-about .about-node:hover,
  .page-about .about-level:hover,
  .page-about .about-year:hover {
    transform: none;
  }
}
<<<END>>>