.page-about {
  background: var(--ink);
  color: var(--dim);
  overflow-x: hidden;
}

.page-about a {
  color: inherit;
}

/* ---------- 顶部上下文 ---------- */
.page-about .about-topline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  justify-content: space-between;
  padding-top: 22px;
  font-size: 0.78rem;
}

.page-about .about-topline__stamp {
  color: var(--amber);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: grid;
  gap: 32px;
  padding-block: clamp(36px, 8vw, 84px) clamp(32px, 6vw, 64px);
}

.page-about .about-hero__title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2.3rem, 8.4vw, 5rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--paper);
  margin: 16px 0 0;
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--amber);
}

.page-about .about-hero__lead {
  margin-top: 22px;
  max-width: 34em;
  font-size: clamp(0.95rem, 2.6vw, 1.05rem);
  line-height: 1.9;
  color: var(--dim);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero__index.card {
  border: 1px solid var(--line);
  background:
    linear-gradient(158deg, rgba(232, 178, 74, 0.11), rgba(11, 10, 8, 0) 58%),
    var(--ink-2);
  padding: 20px 18px;
  align-self: start;
}

.page-about .about-hero__index-title {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin: 0;
}

.page-about .about-index {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-about .about-index a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
  color: var(--dim);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.page-about .about-index a:hover,
.page-about .about-index a:focus-visible {
  color: var(--gold);
  padding-left: 5px;
}

.page-about .about-index .mono {
  color: var(--amber);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

/* ---------- 通用章节 ---------- */
.page-about .about-chapter {
  padding-block: clamp(48px, 8vw, 92px);
}

.page-about .about-chapter__head {
  display: flex;
  gap: clamp(14px, 3vw, 30px);
  align-items: flex-start;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-chapter__num {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2.1rem, 6.4vw, 4rem);
  line-height: 0.92;
  color: transparent;
  -webkit-text-stroke: 1px rgba(232, 178, 74, 0.55);
  letter-spacing: 0.04em;
  flex: none;
}

.page-about .about-chapter__titles h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.3rem, 3.6vw, 1.95rem);
  line-height: 1.35;
  color: var(--paper);
  margin: 8px 0 0;
}

.page-about .about-split {
  display: grid;
  gap: 26px;
  margin-top: 28px;
}

.page-about .prose p {
  line-height: 1.9;
  margin: 0 0 18px;
  max-width: 38em;
}

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

.page-about .about-note {
  margin: 0;
  border-left: 2px solid var(--jade);
  padding: 4px 0 4px 15px;
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--dim);
}

.page-about .about-note__label {
  display: block;
  color: var(--jade);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

/* ---------- 版本长卷 ---------- */
.page-about .about-figure {
  margin: 26px 0 0;
  border: 1px solid var(--line);
}

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

.page-about .about-figure .media__caption {
  padding: 10px 14px;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--dim);
  border-top: 1px solid var(--line-soft);
}

.page-about .about-lede {
  margin: 26px 0 0;
  max-width: 36em;
  line-height: 1.9;
}

.page-about .about-versions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.page-about .about-versions__chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  color: var(--dim);
  text-decoration: none;
  font-size: 0.8rem;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-about .about-versions__chip .mono {
  color: var(--amber);
  font-size: 0.74rem;
}

.page-about .about-versions__chip:hover,
.page-about .about-versions__chip:focus-visible {
  border-color: var(--amber);
  color: var(--gold);
}

.page-about .timeline {
  margin-top: 34px;
}

.page-about .tl-item {
  position: relative;
  padding-left: 32px;
  padding-bottom: 36px;
  scroll-margin-top: 90px;
}

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

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 10px;
  bottom: 0;
  width: 1px;
  background: var(--line-soft);
}

.page-about .tl-item:last-child::before {
  content: none;
}

.page-about .tl-dot {
  position: absolute;
  left: 0;
  top: 4px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--ink);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease);
}

.page-about .tl-item.is-in .tl-dot {
  border-color: var(--amber);
  background: var(--amber);
  box-shadow: 0 0 0 5px rgba(232, 178, 74, 0.12);
}

.page-about .tl-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--amber);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

.page-about .tl-meta .tag {
  letter-spacing: 0;
}

.page-about .tl-body h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.05rem, 2.9vw, 1.32rem);
  line-height: 1.45;
  color: var(--paper);
  margin: 10px 0 10px;
}

.page-about .tl-body p {
  margin: 0;
  max-width: 36em;
  line-height: 1.85;
  font-size: 0.93rem;
}

/* ---------- 编号规则 ---------- */
.page-about .about-archive {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.page-about .about-locate {
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: 18px 18px 8px;
  margin-top: 24px;
}

.page-about .about-locate__title {
  margin: 0 0 4px;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-about .about-locate__row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 0.88rem;
  line-height: 1.8;
}

.page-about .about-locate__row:last-child {
  border-bottom: 0;
}

.page-about .about-locate__key {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-about .about-batch {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.08em;
}

.page-about .about-figure--archive {
  margin-top: 0;
}

/* ---------- 团队与归档（米纸底） ---------- */
.page-about .about-team {
  background: var(--paper);
  color: var(--dark-text);
  padding-block: clamp(48px, 8vw, 88px);
  margin-top: clamp(16px, 4vw, 40px);
}

.page-about .about-team .about-chapter__head {
  border-bottom-color: rgba(36, 31, 24, 0.2);
}

.page-about .about-team .about-chapter__num {
  -webkit-text-stroke: 1px rgba(122, 46, 34, 0.45);
}

.page-about .about-team .about-chapter__titles h2 {
  color: var(--dark-text);
}

.page-about .about-team .eyebrow {
  color: var(--clay);
}

.page-about .about-team__lede {
  margin: 24px 0 0;
  max-width: 36em;
  line-height: 1.9;
  color: rgba(36, 31, 24, 0.78);
}

.page-about .about-crew {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-about .about-crew__card {
  border: 1px solid rgba(36, 31, 24, 0.22);
  background: rgba(255, 255, 255, 0.5);
  padding: 20px 18px;
  position: relative;
}

.page-about .about-crew__card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 34px;
  background: var(--clay);
}

.page-about .about-crew__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2.3rem, 7vw, 3.4rem);
  line-height: 1;
  color: var(--clay);
}

.page-about .about-crew__num small {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: rgba(36, 31, 24, 0.6);
  margin-left: 5px;
}

.page-about .about-crew__card h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.1rem;
  margin: 12px 0 10px;
  color: var(--dark-text);
}

.page-about .about-crew__card p {
  margin: 0 0 10px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(36, 31, 24, 0.82);
}

.page-about .about-crew__aside {
  border-top: 1px dashed rgba(36, 31, 24, 0.22);
  padding-top: 10px;
  font-size: 0.8rem !important;
  color: rgba(36, 31, 24, 0.62) !important;
  margin-bottom: 0 !important;
}

.page-about .about-proof-wrap {
  display: grid;
  gap: 26px;
  margin-top: 34px;
}

.page-about .about-proof__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.05rem, 3vw, 1.3rem);
  margin: 0 0 16px;
  color: var(--dark-text);
}

.page-about .about-proof {
  list-style: none;
  counter-reset: proof;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-proof li {
  counter-increment: proof;
  position: relative;
  padding: 14px 16px 14px 50px;
  border-left: 2px solid var(--clay);
  background: rgba(36, 31, 24, 0.05);
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(36, 31, 24, 0.86);
}

.page-about .about-proof li::before {
  content: "0" counter(proof);
  position: absolute;
  left: 15px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--clay);
}

.page-about .about-proof li strong {
  color: var(--dark-text);
  font-weight: 600;
}

.page-about .about-figure--proof {
  margin-top: 0;
}

.page-about .about-team .about-figure {
  border-color: rgba(36, 31, 24, 0.24);
}

.page-about .about-team .about-figure .media__caption {
  border-top-color: rgba(36, 31, 24, 0.18);
  color: rgba(36, 31, 24, 0.68);
}

/* ---------- 服务覆盖 ---------- */
.page-about .about-stats {
  display: grid;
  gap: 22px;
  margin-top: 30px;
}

.page-about .about-stat {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 5.6vw, 2.9rem);
  line-height: 1.1;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-about .about-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--dim);
}

.page-about .about-regions {
  margin-top: 30px;
  display: grid;
  gap: 18px;
  border: 1px solid var(--line-soft);
  background: var(--ink-2);
  padding: 20px 18px;
}

.page-about .about-regions__text {
  margin: 0;
  max-width: 36em;
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--dim);
}

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

/* ---------- 长期做法 ---------- */
.page-about .about-tenets {
  display: grid;
  gap: 18px;
  margin-top: 30px;
}

.page-about .about-tenets__item {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-about .about-tenets__num {
  color: var(--amber);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
}

.page-about .about-tenets__item h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.06rem;
  color: var(--paper);
  margin: 8px 0 10px;
}

.page-about .about-tenets__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--dim);
}

/* ---------- 收束 ---------- */
.page-about .about-cta {
  margin-top: clamp(40px, 7vw, 76px);
  border: 1px solid var(--line);
  background:
    linear-gradient(122deg, rgba(232, 178, 74, 0.12), rgba(31, 111, 99, 0.09) 72%, rgba(11, 10, 8, 0)),
    var(--ink-2);
  padding: clamp(24px, 5vw, 42px);
}

.page-about .about-cta__text h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.2rem, 3.4vw, 1.7rem);
  line-height: 1.4;
  color: var(--paper);
  margin: 10px 0 0;
  max-width: 22em;
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-about .about-tenets {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 36px;
  }

  .page-about .about-locate__row {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .page-about .about-regions {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 24px 26px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1fr) 290px;
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.95fr) minmax(0, 1fr);
    gap: clamp(30px, 4vw, 56px);
  }

  .page-about .about-split__aside {
    padding-top: 4px;
  }

  .page-about .about-archive {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-about .about-crew {
    grid-template-columns: 1.05fr 0.9fr 1.05fr;
    gap: 20px;
    margin-top: 34px;
  }

  .page-about .about-crew__card:nth-child(2) {
    margin-top: 22px;
  }

  .page-about .about-crew__card:nth-child(3) {
    margin-top: 44px;
  }

  .page-about .about-proof-wrap {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
    margin-top: 44px;
  }

  .page-about .about-cta {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
    align-items: center;
  }

  .page-about .about-cta__links {
    margin-top: 0;
    justify-content: flex-end;
    max-width: 320px;
  }

  .page-about .about-figure--archive {
    margin-top: 6px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-hero__index.card {
    padding: 26px 24px;
  }

  .page-about .tl-item {
    padding-left: 38px;
  }

  .page-about .about-chapter__num {
    font-size: 4.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index a,
  .page-about .about-versions__chip,
  .page-about .tl-dot {
    transition: none;
  }
}
<<<PAGE_CSS_DONE>>>