.page-about {
  --about-hair: rgba(23, 20, 16, 0.14);
  --about-hair-soft: rgba(23, 20, 16, 0.08);
  --about-gold-hair: rgba(201, 162, 39, 0.3);
  --about-on-ink: rgba(246, 241, 228, 0.74);
  --about-on-ink-soft: rgba(246, 241, 228, 0.5);
  background: var(--paper-50);
  color: var(--brown-900);
  font-family: var(--font-body);
}

/* ============ 首屏 ============ */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink-900);
  color: var(--paper-50);
  padding: clamp(28px, 5vw, 48px) 0 clamp(48px, 8vw, 84px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(to right, rgba(201, 162, 39, 0.1) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(to bottom, rgba(201, 162, 39, 0.1) 0 1px, transparent 1px 64px);
  opacity: 0.6;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--line-gold), transparent);
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  gap: 36px;
}

.page-about .about-hero__crumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--about-on-ink-soft);
  margin-bottom: clamp(24px, 5vw, 48px);
}

.page-about .about-hero__crumbs a {
  color: var(--gold-300);
  text-decoration: none;
}

.page-about .about-hero__crumbs a:hover {
  color: var(--paper-50);
  text-decoration: underline;
  text-underline-offset: 4px;
}

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

.page-about .about-hero__title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(2.4rem, 8vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--paper-50);
  margin: 14px 0 22px;
}

.page-about .about-hero__lede {
  max-width: 48ch;
  margin: 0 0 30px;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--about-on-ink);
}

.page-about .about-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 32px;
  background: var(--about-gold-hair);
  border: 1px solid var(--about-gold-hair);
}

.page-about .about-hero__meta-item {
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
  padding: 14px 14px 16px;
  background: var(--ink-900);
}

.page-about .about-hero__meta-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.15rem, 4vw, 1.5rem);
  line-height: 1;
  color: var(--gold-300);
  margin: 0;
}

.page-about .about-hero__meta-label {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--about-on-ink-soft);
}

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

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

.page-about .about-hero__figure .figure__frame {
  border: 1px solid var(--about-gold-hair);
  overflow: hidden;
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06);
}

.page-about .about-hero__figure .figure__cap {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--about-on-ink-soft);
  margin-top: 12px;
  line-height: 1.7;
}

@media (min-width: 960px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
  }
}

/* ============ 章节索引条 ============ */
.page-about .about-index {
  background: var(--ink-700);
  border-bottom: 1px solid var(--about-gold-hair);
}

.page-about .about-index__list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-about .about-index__cell {
  flex: 0 0 auto;
}

.page-about .about-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  white-space: nowrap;
  font-size: 13.5px;
  color: var(--paper-50);
  text-decoration: none;
  border-right: 1px solid rgba(201, 162, 39, 0.2);
  transition: background var(--t-fast), color var(--t-fast);
}

.page-about .about-index__link:hover {
  background: var(--velvet-500);
  color: var(--gold-300);
}

.page-about .about-index__link:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: -2px;
}

.page-about .about-index__link[aria-current="true"] {
  background: var(--gold-500);
  color: var(--ink-900);
}

.page-about .about-index__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--gold-500);
}

.page-about .about-index__link[aria-current="true"] .about-index__num {
  color: var(--ink-900);
}

/* ============ 通用章节节奏 ============ */
.page-about .about-band {
  padding: clamp(52px, 8vw, 92px) 0;
}

.page-about .about-head {
  max-width: 62ch;
  margin-bottom: clamp(32px, 5vw, 48px);
}

.page-about .about-head__title {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: clamp(1.55rem, 4.6vw, 2.25rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--brown-900);
  margin: 12px 0 16px;
}

.page-about .about-head__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--gray-600);
}

.page-about .about-head__text a,
.page-about .team-note__link a,
.page-about .rule-cell__text a {
  color: var(--gold-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-head__text a:hover,
.page-about .team-note__link a:hover,
.page-about .rule-cell__text a:hover {
  color: var(--crimson-700);
}

/* ============ 01 时间线 ============ */
.page-about .about-tl-band {
  background: var(--paper-50);
}

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

.page-about .tl::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 7px;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--line-gold) 8%, var(--line-gold) 92%, transparent);
}

.page-about .tl__item {
  position: relative;
  padding: 0 0 34px 42px;
}

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

.page-about .tl__node {
  position: absolute;
  left: 0;
  top: 8px;
  width: 15px;
  height: 15px;
  background: var(--gold-500);
  border: 1px solid var(--ink-900);
  box-shadow: 0 0 0 3px var(--paper-50);
}

.page-about .tl__card {
  background: var(--paper-50);
  border: 1px solid var(--about-hair);
  border-left: 2px solid var(--gold-500);
  padding: 20px 22px 22px;
  transition: border-color var(--t-fast), transform var(--t-fast);
}

.page-about .tl__card:hover {
  border-color: var(--line-gold);
  border-left-color: var(--gold-300);
  transform: translateY(-2px);
}

.page-about .tl__year {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--gold-600);
  margin: 0 0 10px;
}

.page-about .tl__title {
  font-family: var(--font-title);
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--brown-900);
  margin: 0 0 10px;
}

.page-about .tl__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray-600);
}

@media (min-width: 900px) {
  .page-about .tl__item:nth-child(1) { padding-bottom: 58px; }
  .page-about .tl__item:nth-child(2) { padding-bottom: 40px; }
  .page-about .tl__item:nth-child(3) { padding-bottom: 24px; }
  .page-about .tl__item:nth-child(2) .tl__card { margin-left: 7%; }
  .page-about .tl__item:nth-child(4) .tl__card { margin-left: 13%; }
}

/* ============ 02 服务清单 ============ */
.page-about .about-service-band {
  background: var(--paper-200);
  border-top: 1px solid var(--about-hair-soft);
  border-bottom: 1px solid var(--about-hair-soft);
}

.page-about .svc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--about-hair);
}

.page-about .svc {
  display: grid;
  gap: 10px;
  padding: 24px 0;
  border-bottom: 1px solid var(--about-hair);
}

.page-about .svc__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-600);
}

.page-about .svc__title {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--brown-900);
  margin: 0;
}

.page-about .svc__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--gray-600);
}

.page-about .svc__text a {
  color: var(--gold-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .svc__text a:hover {
  color: var(--crimson-700);
}

@media (min-width: 820px) {
  .page-about .svc {
    grid-template-columns: 76px minmax(0, 1fr) minmax(0, 1.5fr);
    gap: 28px;
    align-items: start;
    padding: 26px 0;
  }
  .page-about .svc__num { padding-top: 8px; }
}

/* ============ 03 版图 ============ */
.page-about .about-map-band {
  background: var(--ink-900);
  color: var(--paper-50);
}

.page-about .about-head--onink .about-head__title {
  color: var(--paper-50);
}

.page-about .about-head--onink .about-head__text {
  color: var(--about-on-ink);
}

.page-about .map-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-gold-hair);
  border: 1px solid var(--about-gold-hair);
  margin-bottom: 28px;
}

.page-about .map-stat {
  background: var(--ink-900);
  padding: 22px 18px 24px;
}

.page-about .map-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.9rem, 6vw, 2.8rem);
  line-height: 1;
  color: var(--gold-300);
  letter-spacing: -0.01em;
}

.page-about .map-stat__unit {
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--gold-500);
  margin-left: 6px;
}

.page-about .map-stat__label {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--about-on-ink);
}

.page-about .map-zones {
  display: grid;
  gap: 1px;
  background: var(--about-gold-hair);
  border: 1px solid var(--about-gold-hair);
}

.page-about .zone {
  background: var(--ink-700);
  padding: 24px 20px 26px;
}

.page-about .zone__tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--gold-500);
  margin-bottom: 12px;
}

.page-about .zone__title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--paper-50);
  margin: 0 0 10px;
}

.page-about .zone__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--about-on-ink);
}

@media (min-width: 720px) {
  .page-about .map-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 880px) {
  .page-about .map-zones { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ============ 04 团队 ============ */
.page-about .about-team-band {
  background: var(--paper-50);
}

.page-about .team-grid {
  display: grid;
  gap: 34px;
}

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

.page-about .about-team__figure .figure__frame {
  border: 1px solid var(--about-hair);
  overflow: hidden;
  background: var(--paper-200);
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-about .about-team__figure .figure__cap {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.7;
  color: var(--gray-600);
  margin-top: 12px;
}

.page-about .team-side {
  display: grid;
  gap: 26px;
  align-content: start;
}

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

.page-about .crew__row {
  display: grid;
  gap: 7px;
}

.page-about .crew__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.page-about .crew__name {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--brown-900);
}

.page-about .crew__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--gold-600);
}

.page-about .crew__track {
  height: 10px;
  background: var(--paper-200);
  border: 1px solid var(--about-hair-soft);
}

.page-about .crew__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--velvet-500), var(--gold-500));
  transition: width var(--t-mid);
}

.page-about .crew__row--a .crew__fill { width: 90%; }
.page-about .crew__row--b .crew__fill { width: 64%; }
.page-about .crew__row--c .crew__fill { width: 50%; }
.page-about .crew__row--d .crew__fill { width: 36%; }

.page-about .team-note {
  border: 1px solid var(--about-hair);
  border-left: 2px solid var(--crimson-700);
  background: var(--paper-200);
  padding: 20px 22px;
}

.page-about .team-note__text {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--gray-600);
}

.page-about .team-note__link {
  margin: 0;
  font-size: 14.5px;
}

@media (min-width: 960px) {
  .page-about .team-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 52px;
    align-items: start;
  }
}

/* ============ 05 信息维护 ============ */
.page-about .about-record-band {
  background: var(--paper-200);
  border-top: 1px solid var(--about-hair-soft);
}

.page-about .rule-grid {
  display: grid;
  gap: 1px;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
  margin-bottom: 34px;
}

.page-about .rule-cell {
  background: var(--paper-50);
  padding: 24px 20px 26px;
}

.page-about .rule-cell__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--gold-600);
}

.page-about .rule-cell__title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--brown-900);
  margin: 12px 0 10px;
}

.page-about .rule-cell__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gray-600);
}

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

.page-about .about-record__figure .figure__frame {
  border: 1px solid var(--about-hair);
  overflow: hidden;
}

.page-about .about-record__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.04);
}

.page-about .about-record__figure .figure__cap {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.7;
  color: var(--gray-600);
  margin-top: 12px;
}

@media (min-width: 760px) {
  .page-about .rule-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ============ 06 年度节奏 ============ */
.page-about .about-rhythm-band {
  background: var(--paper-50);
}

.page-about .rhythm-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-about .rhythm-table th,
.page-about .rhythm-table td {
  text-align: left;
  padding: 15px 16px;
  border-bottom: 1px solid var(--about-hair);
  vertical-align: top;
  line-height: 1.7;
}

.page-about .rhythm-table thead th {
  background: var(--gold-100);
  color: var(--brown-900);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  border-bottom: 1px solid var(--about-gold-hair);
  white-space: nowrap;
}

.page-about .rhythm-table tbody tr:nth-child(even) {
  background: var(--paper-200);
}

.page-about .rhythm-table td.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--gold-600);
  white-space: nowrap;
  text-align: right;
}

.page-about .rhythm-foot {
  margin: 26px 0 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--gray-600);
}

.page-about .rhythm-foot__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.05rem;
  color: var(--gold-600);
  padding: 0 4px;
}

/* ============ 收束色块 ============ */
.page-about .about-cta {
  background: var(--velvet-500);
  color: var(--paper-50);
  padding: clamp(48px, 7vw, 76px) 0;
}

.page-about .about-cta__title {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: clamp(1.4rem, 4vw, 1.9rem);
  line-height: 1.3;
  color: var(--paper-50);
  margin: 0 0 12px;
}

.page-about .about-cta__text {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(246, 241, 228, 0.82);
}

.page-about .about-cta__grid {
  display: grid;
  gap: 1px;
  margin-top: 30px;
  background: rgba(246, 241, 228, 0.22);
  border: 1px solid rgba(246, 241, 228, 0.26);
}

.page-about .about-cta__card {
  display: grid;
  gap: 10px;
  padding: 24px 22px 26px;
  background: var(--velvet-500);
  text-decoration: none;
  transition: background var(--t-fast), transform var(--t-fast);
}

.page-about .about-cta__card:hover {
  background: var(--ink-700);
  transform: translateY(-2px);
}

.page-about .about-cta__card:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: 2px;
}

.page-about .about-cta__kicker {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--gold-300);
}

.page-about .about-cta__card-title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper-50);
}

.page-about .about-cta__more {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--gold-300);
}

@media (min-width: 840px) {
  .page-about .about-cta__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
<<<END>>>