.page-about {
  --about-line: rgba(138, 106, 47, 0.24);
  --about-warm: #FFF8EC;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-about .about-crumbs {
  padding: clamp(14px, 2.4vw, 22px) 0 0;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: clamp(20px, 3.4vw, 40px) 0 clamp(32px, 5vw, 64px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 46px);
}

@media (min-width: 940px) {
  .page-about .about-hero__grid {
    grid-template-columns: 1.55fr 1fr;
    align-items: start;
  }
}

.page-about .about-hero__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--sun);
  text-transform: uppercase;
}

.page-about .about-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(30px, 5.6vw, 52px);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--ink);
  max-width: 16em;
}

.page-about .about-hero__text {
  margin: 0 0 14px;
  font-size: clamp(16px, 1.4vw, 17px);
  line-height: 1.78;
  color: #3B3546;
  max-width: 34em;
}

.page-about .about-hero__lead .btn-row {
  margin-top: 24px;
}

.page-about .about-hero__panel {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  background: linear-gradient(150deg, var(--deep) 0%, var(--night) 100%);
  color: var(--paper);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-about .about-hero__panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255, 200, 87, 0.18) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.5;
  pointer-events: none;
}

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

.page-about .about-hero__panel-label {
  margin: 0 0 16px;
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-about .about-hero__facts {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 13px;
}

.page-about .about-hero__facts li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(247, 239, 225, 0.86);
}

.page-about .about-hero__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
}

.page-about .about-hero__facts .mono {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 14px;
}

.page-about .about-hero__facts strong {
  color: var(--paper);
  font-weight: 700;
}

/* ---------- 页内跳转 ---------- */
.page-about .about-jump {
  padding: 0 0 clamp(18px, 3vw, 30px);
}

.page-about .about-jump__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-line);
  padding-top: 16px;
}

.page-about .about-jump__link {
  display: inline-block;
  padding: 7px 15px;
  border: 1px solid var(--about-line);
  border-radius: 999px;
  font-size: 13.5px;
  letter-spacing: 0.03em;
  color: #4A4157;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-jump__link:hover,
.page-about .about-jump__link:focus-visible {
  background: var(--deep);
  border-color: var(--deep);
  color: var(--paper);
}

/* ---------- 时间轴 + 数据 ---------- */
.page-about .about-split {
  padding: clamp(28px, 5vw, 64px) 0 clamp(20px, 3vw, 36px);
}

.page-about .about-split__grid {
  display: grid;
  gap: clamp(30px, 5vw, 60px);
}

@media (min-width: 1000px) {
  .page-about .about-split__grid {
    grid-template-columns: 1.5fr 1fr;
    align-items: start;
  }
}

.page-about .section-head__title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.28;
  color: var(--ink);
}

.page-about .section-head__eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--sand);
}

.page-about .section-head__note {
  font-size: 16px;
  line-height: 1.78;
  color: #4A4157;
  max-width: 36em;
}

.page-about .about-frame {
  margin: clamp(20px, 3vw, 30px) 0 clamp(26px, 4vw, 40px);
  position: relative;
}

.page-about .about-frame::after {
  content: "";
  position: absolute;
  inset: auto -8px -8px auto;
  width: 42%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--sun));
  pointer-events: none;
}

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

.page-about .about-frame--wide img {
  aspect-ratio: 3 / 2;
}

.page-about .about-frame--square img {
  aspect-ratio: 9 / 7;
}

.page-about .about-timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 28px;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--sun) 0%, var(--gold) 45%, var(--teal) 100%);
  opacity: 0.55;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 clamp(24px, 3vw, 34px);
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 4px var(--paper);
}

.page-about .about-timeline__item--now::before {
  background: var(--sun);
  border-color: var(--sun);
  box-shadow: 0 0 0 4px var(--paper), 0 0 12px rgba(255, 122, 0, 0.55);
}

.page-about .about-timeline__year {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--sun);
}

.page-about .about-timeline__title {
  margin: 0 0 8px;
  font-family: var(--font-round);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.4;
  color: var(--ink);
}

.page-about .about-timeline__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: #4A4157;
  max-width: 34em;
}

.page-about .about-timeline__more {
  margin-top: 10px;
  max-width: 34em;
}

.page-about .about-timeline__more .fold__summary {
  font-size: 13.5px;
  color: var(--sand);
}

.page-about .about-timeline__more .fold__body p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: #574E64;
}

.page-about .about-split__side {
  padding: clamp(22px, 3vw, 32px);
  background: var(--about-warm);
  border: 1px solid var(--about-line);
  border-left: 4px solid var(--sun);
}

.page-about .about-side-title {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 24px);
  color: var(--ink);
}

.page-about .about-side-note {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sand);
}

.page-about .about-report {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-report__row {
  display: block;
  padding: 16px 0 14px;
  border-bottom: 1px dashed var(--about-line);
}

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

.page-about .about-report__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.4vw, 38px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--deep);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.page-about .about-report__unit {
  font-size: 0.5em;
  margin-left: 2px;
  color: var(--sun);
}

.page-about .about-report__label {
  display: block;
  margin-top: 4px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-report__note {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  line-height: 1.7;
  color: #6B6279;
}

.page-about .about-report__scale {
  display: block;
  height: 7px;
  margin-top: 10px;
  background-image: repeating-linear-gradient(90deg, var(--sand) 0 1px, transparent 1px 11px);
  opacity: 0.55;
}

.page-about .about-side-foot {
  margin: 18px 0 0;
  font-size: 14px;
}

.page-about .about-inline-link {
  color: var(--deep);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--sun);
  border-color: var(--sun);
}

/* ---------- 横带 ---------- */
.page-about .about-voices {
  position: relative;
  margin: clamp(30px, 4.4vw, 60px) 0;
  padding: clamp(52px, 8vw, 92px) 0;
  background: linear-gradient(118deg, var(--gold) 0%, #FFB547 52%, var(--sun) 100%);
  color: var(--ink);
  clip-path: polygon(0 28px, 100% 0, 100% calc(100% - 28px), 0 100%);
}

.page-about .about-voices::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(20, 18, 26, 0.16) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.4;
  pointer-events: none;
}

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

.page-about .about-voices__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.24;
  color: var(--ink);
}

.page-about .about-voices__note {
  margin: 0 0 clamp(22px, 3vw, 36px);
  font-size: 16px;
  line-height: 1.75;
  color: rgba(20, 18, 26, 0.78);
  max-width: 40em;
}

.page-about .about-voices__grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

@media (min-width: 760px) {
  .page-about .about-voices__grid {
    grid-template-columns: 1fr 1fr;
  }
}

.page-about .about-voice {
  padding: clamp(20px, 2.6vw, 30px);
  background: rgba(247, 239, 225, 0.9);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-about .about-voice__badge {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--sun);
}

.page-about .about-voice__title {
  margin: 0 0 10px;
  font-family: var(--font-round);
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.42;
  color: var(--ink);
}

.page-about .about-voice__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #4A4157;
}

/* ---------- 六栏目 ---------- */
.page-about .about-columns {
  padding: clamp(34px, 5vw, 68px) 0 clamp(20px, 3vw, 40px);
}

.page-about .about-columns__grid {
  display: grid;
  gap: clamp(28px, 4.6vw, 56px);
}

@media (min-width: 1000px) {
  .page-about .about-columns__grid {
    grid-template-columns: 1.45fr 1fr;
    align-items: start;
  }
}

.page-about .about-columns__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-columns__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-columns__desc {
  font-size: 14.5px;
  line-height: 1.7;
  color: #4A4157;
  flex: 1 1 200px;
}

.page-about .about-columns__foot {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: #4A4157;
  padding-left: 14px;
  border-left: 3px solid var(--teal);
  max-width: 38em;
}

.page-about .about-columns__visual {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-about .about-tree {
  display: block;
  width: 100%;
  height: auto;
  padding: 16px;
  background: var(--about-warm);
  border: 1px solid var(--about-line);
}

.page-about .about-tree__line {
  stroke: rgba(138, 106, 47, 0.5);
  stroke-width: 2;
  fill: none;
}

.page-about .about-tree__node {
  fill: var(--paper);
  stroke: var(--sand);
  stroke-width: 2;
}

.page-about .about-tree__node--root {
  fill: var(--sun);
  stroke: var(--sun);
}

.page-about .about-tree__node--branch {
  fill: var(--gold);
  stroke: var(--sun);
}

.page-about .about-tree__leaf {
  fill: var(--teal);
  transition: fill var(--dur) var(--ease), r var(--dur) var(--ease);
}

.page-about .about-tree__groupwrap:hover .about-tree__leaf {
  fill: var(--sun);
}

.page-about .about-tree__label {
  font-family: var(--font-sans);
  font-size: 13px;
  fill: var(--ink);
}

.page-about .about-tree__group {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  fill: var(--sand);
}

.page-about .about-columns__visual .about-frame {
  margin: 0;
}

/* ---------- 内容生产 ---------- */
.page-about .about-craft {
  padding: clamp(30px, 5vw, 64px) 0 clamp(30px, 4vw, 56px);
}

.page-about .about-craft__grid {
  display: grid;
  gap: clamp(26px, 4vw, 50px);
}

@media (min-width: 1000px) {
  .page-about .about-craft__grid {
    grid-template-columns: 1fr 1.18fr;
    align-items: start;
  }
}

.page-about .about-craft__grid .about-frame {
  margin: 0;
}

.page-about .about-steps {
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-about .about-steps .step__title {
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 16.5px;
  color: var(--ink);
}

.page-about .about-steps .step__text {
  font-size: 14.5px;
  line-height: 1.75;
  color: #4A4157;
}

/* ---------- 收尾 ---------- */
.page-about .about-next {
  margin-top: clamp(30px, 4.4vw, 64px);
  padding: clamp(46px, 7vw, 86px) 0 clamp(40px, 5.6vw, 70px);
  background: linear-gradient(162deg, var(--deep) 0%, var(--night) 100%);
  color: var(--paper);
}

.page-about .about-next__grid {
  display: grid;
  gap: clamp(26px, 4vw, 50px);
}

@media (min-width: 900px) {
  .page-about .about-next__grid {
    grid-template-columns: 1fr 1.3fr;
    align-items: start;
  }
}

.page-about .about-next__title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.25;
  color: var(--paper);
}

.page-about .about-next__text {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(247, 239, 225, 0.82);
  max-width: 32em;
}

.page-about .about-next__cards {
  display: grid;
  gap: 14px;
}

@media (min-width: 640px) {
  .page-about .about-next__cards {
    grid-template-columns: 1fr 1fr;
  }
}

.page-about .about-next__card {
  display: block;
  padding: 20px 22px;
  background: rgba(247, 239, 225, 0.06);
  border: 1px solid rgba(255, 200, 87, 0.22);
  color: var(--paper);
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  transform: translateY(-6px);
  background: rgba(255, 200, 87, 0.13);
  border-color: var(--gold);
}

.page-about .about-next__card-title {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 17px;
  color: var(--gold);
}

.page-about .about-next__card-desc {
  display: block;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(247, 239, 225, 0.82);
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-next__card,
  .page-about .about-jump__link,
  .page-about .about-inline-link {
    transition: none;
  }

  .page-about .about-next__card:hover {
    transform: none;
  }
}
<<<END>>>