.page-about {
  --about-shift: 12px;
  --about-gold-line: rgba(217, 179, 108, 0.42);
  position: relative;
  isolation: isolate;
  overflow-x: clip;
  padding: clamp(92px, 11vw, 136px) 0 clamp(56px, 7vw, 96px);
  background: var(--ink-950);
  color: var(--ivory);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
}

.page-about::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -170px;
  left: -16%;
  right: -16%;
  height: min(780px, 105vw);
  border-radius: 54% 46% 58% 42% / 62% 50% 50% 38%;
  background:
    radial-gradient(52% 58% at 26% 22%, rgba(217, 179, 108, 0.17), rgba(217, 179, 108, 0) 70%),
    radial-gradient(46% 52% at 78% 34%, rgba(184, 122, 61, 0.16), rgba(184, 122, 61, 0) 72%);
  filter: blur(6px);
  pointer-events: none;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about .about-wrap {
  position: relative;
  z-index: 1;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* 面包屑 */
.page-about .about-crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(26px, 4vw, 46px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-about .about-crumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-about .about-crumbs a:hover,
.page-about .about-crumbs a:focus-visible {
  color: var(--champagne);
}

.page-about .about-crumbs [aria-current="page"] {
  color: var(--champagne);
}

.page-about .about-crumbs__sep {
  color: rgba(154, 148, 160, 0.6);
}

/* 首屏 */
.page-about .about-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--champagne);
}

.page-about .about-kicker__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, var(--gold-light), var(--champagne) 46%, var(--copper) 100%);
  box-shadow: 0 0 0 3px rgba(217, 179, 108, 0.14);
}

.page-about .about-hero__title {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 5.2vw, 52px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--gold-light);
  border-bottom: 1px solid var(--about-gold-line);
  padding-bottom: 2px;
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 38em;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.92;
  color: rgba(243, 238, 228, 0.82);
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius-panel) + 6px);
  background: var(--ink-900);
  box-shadow: 0 34px 80px -46px rgba(0, 0, 0, 0.92);
}

.page-about .about-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(125deg, rgba(240, 217, 168, 0.14), rgba(11, 11, 13, 0) 46%, rgba(11, 11, 13, 0.42));
}

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

/* 数据条 */
.page-about .about-stats {
  list-style: none;
  margin: clamp(36px, 5vw, 64px) 0 0;
  padding: clamp(20px, 2.6vw, 28px) 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 32px);
}

.page-about .about-stats__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--champagne);
}

.page-about .about-stats__label {
  display: block;
  margin-top: 6px;
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--mist);
}

/* 堆叠面板 */
.page-about .about-stack {
  position: relative;
  z-index: 1;
  max-width: var(--shell);
  margin: clamp(46px, 7vw, 88px) auto 0;
  padding: 0 var(--gutter);
  display: grid;
  gap: clamp(24px, 3.4vw, 38px);
}

.page-about .about-panel {
  position: relative;
  padding: clamp(22px, 3.2vw, 42px);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: linear-gradient(152deg, rgba(31, 30, 36, 0.94) 0%, rgba(20, 20, 26, 0.96) 58%, rgba(11, 11, 13, 0.96) 100%);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .about-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(120% 90% at 100% 0%, rgba(217, 179, 108, 0.07), rgba(217, 179, 108, 0) 58%);
}

.page-about .about-panel:hover,
.page-about .about-panel:focus-within {
  border-color: var(--about-gold-line);
  box-shadow: 0 26px 64px -48px rgba(217, 179, 108, 0.72);
}

.page-about .about-panel__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: clamp(12px, 1.6vw, 20px);
  margin-bottom: clamp(18px, 2.4vw, 28px);
  padding-bottom: clamp(14px, 1.8vw, 20px);
  border-bottom: 1px solid rgba(58, 58, 68, 0.72);
}

.page-about .about-panel__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1;
  color: var(--copper);
  transition: color var(--dur) var(--ease);
}

.page-about .about-panel:hover .about-panel__num {
  color: var(--gold-light);
}

.page-about .about-panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.5vw, 28px);
  line-height: 1.42;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-about .about-panel__body > p {
  margin: 0 0 1.05em;
  max-width: 40em;
  font-size: clamp(15px, 1.35vw, 16.5px);
  line-height: 1.92;
  color: rgba(243, 238, 228, 0.8);
}

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

.page-about .about-panel__body--tail {
  margin-top: clamp(18px, 2.4vw, 26px);
  padding-top: clamp(16px, 2vw, 22px);
  border-top: 1px solid rgba(58, 58, 68, 0.62);
}

.page-about .about-lead {
  margin: 0 0 clamp(16px, 2vw, 22px);
  padding-left: clamp(14px, 1.8vw, 20px);
  border-left: 2px solid var(--champagne);
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.72;
  color: var(--ivory);
}

.page-about .about-text-link {
  color: var(--champagne);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 179, 108, 0.45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-text-link:hover,
.page-about .about-text-link:focus-visible {
  color: var(--gold-light);
  border-bottom-color: var(--gold-light);
}

/* 六分区清单 */
.page-about .about-zones {
  list-style: none;
  margin: clamp(18px, 2.4vw, 26px) 0;
  padding: 0;
  border-top: 1px solid rgba(58, 58, 68, 0.6);
}

.page-about .about-zones li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: clamp(12px, 1.6vw, 16px) 0;
  border-bottom: 1px solid rgba(58, 58, 68, 0.6);
}

.page-about .about-zones__name {
  font-family: var(--font-label);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--champagne);
}

.page-about .about-zones__desc {
  font-size: 15px;
  line-height: 1.82;
  color: rgba(243, 238, 228, 0.76);
}

/* 图文分栏面板 */
.page-about .about-panel--split .about-panel__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 40px);
  align-items: start;
}

.page-about .about-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(184, 122, 61, 0.34);
  border-radius: var(--radius-float);
  background: var(--ink-800);
}

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

.page-about .about-figure figcaption {
  padding: 10px 12px;
  border-top: 1px solid rgba(58, 58, 68, 0.6);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-about .about-figure--wide {
  margin: clamp(22px, 3vw, 32px) 0 clamp(20px, 2.6vw, 28px);
}

/* 版本演进 */
.page-about .about-timeline {
  list-style: none;
  margin: 0 0 clamp(20px, 2.6vw, 30px);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  counter-reset: ver;
}

.page-about .about-timeline__node {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 4px 12px;
  padding: 12px 14px;
  border: 1px solid rgba(58, 58, 68, 0.8);
  border-top: 2px solid var(--copper);
  border-radius: var(--radius-float);
  background: rgba(20, 20, 26, 0.9);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-timeline__node:hover,
.page-about .about-timeline__node:focus-visible {
  border-color: var(--about-gold-line);
  border-top-color: var(--gold-light);
  background: rgba(31, 30, 36, 0.96);
  transform: translateY(-2px);
}

.page-about .about-timeline__ver {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--champagne);
}

.page-about .about-timeline__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--ivory);
}

.page-about .about-timeline__hint {
  grid-column: 1 / -1;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-timeline li:nth-child(2) .about-timeline__node {
  border-top-color: rgba(184, 122, 61, 0.82);
}

.page-about .about-timeline li:nth-child(3) .about-timeline__node {
  border-top-color: rgba(217, 179, 108, 0.7);
}

.page-about .about-timeline li:nth-child(4) .about-timeline__node {
  border-top-color: var(--champagne);
  background: linear-gradient(158deg, rgba(217, 179, 108, 0.13), rgba(20, 20, 26, 0.94));
}

.page-about .about-versions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-version {
  padding: clamp(14px, 1.8vw, 20px);
  border: 1px solid rgba(58, 58, 68, 0.7);
  border-left: 2px solid rgba(184, 122, 61, 0.5);
  border-radius: 10px;
  background: rgba(20, 20, 26, 0.72);
  scroll-margin-top: 110px;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .about-version:target {
  border-color: rgba(217, 179, 108, 0.58);
  border-left-color: var(--champagne);
  background: linear-gradient(150deg, rgba(217, 179, 108, 0.13), rgba(20, 20, 26, 0.88));
  box-shadow: inset 0 0 0 1px rgba(240, 217, 168, 0.16);
}

.page-about .about-version__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 8px;
}

.page-about .about-version__num {
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--champagne);
}

.page-about .about-version p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(243, 238, 228, 0.78);
}

/* 团队与筛选 */
.page-about .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-about .filter-btn {
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--mist);
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.4;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .filter-btn:hover,
.page-about .filter-btn:focus-visible {
  color: var(--gold-light);
  border-color: var(--about-gold-line);
}

.page-about .filter-btn.is-active,
.page-about .filter-btn[aria-pressed="true"] {
  color: var(--ink-950);
  border-color: var(--champagne);
  background: linear-gradient(120deg, var(--gold-light), var(--champagne));
}

.page-about .about-roles {
  list-style: none;
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-roles [hidden] {
  display: none !important;
}

.page-about .about-role {
  padding: clamp(16px, 2vw, 22px);
  border: 1px solid rgba(58, 58, 68, 0.7);
  border-radius: var(--radius-float);
  background: rgba(31, 30, 36, 0.6);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-role:hover {
  border-color: var(--about-gold-line);
  background: rgba(31, 30, 36, 0.82);
}

.page-about .about-role__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--gold-light);
}

.page-about .about-role__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.86;
  color: rgba(243, 238, 228, 0.78);
}

/* 横向分区带 */
.page-about .about-band {
  position: relative;
  z-index: 1;
  margin-top: clamp(46px, 6vw, 84px);
  padding: clamp(28px, 4vw, 48px) var(--gutter);
  border-top: 1px solid rgba(58, 58, 68, 0.62);
  border-bottom: 1px solid rgba(58, 58, 68, 0.62);
  background: linear-gradient(108deg, rgba(184, 122, 61, 0.15), rgba(217, 179, 108, 0.06) 46%, rgba(11, 11, 13, 0) 84%);
}

.page-about .about-band__inner {
  max-width: var(--shell);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.2vw, 24px);
  align-items: center;
}

.page-about .about-band__text {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 26px);
  line-height: 1.6;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-about .about-band .btn {
  justify-self: start;
}

/* 结尾入口 */
.page-about .about-cta {
  position: relative;
  z-index: 1;
  margin-top: clamp(46px, 6vw, 76px);
  padding: clamp(24px, 3.4vw, 40px);
  border: 1px solid rgba(58, 58, 68, 0.72);
  border-radius: var(--radius-panel);
  background: linear-gradient(158deg, rgba(31, 30, 36, 0.86), rgba(11, 11, 13, 0.9));
}

.page-about .about-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-about .about-cta__text {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  max-width: 40em;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(243, 238, 228, 0.78);
}

.page-about .about-cta .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 进入视口显现 */
.js .page-about [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 520ms var(--ease), transform 520ms var(--ease);
}

.js .page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* 响应式 */
@media (min-width: 760px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-zones li {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: clamp(12px, 2vw, 22px);
    align-items: baseline;
  }

  .page-about .about-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(10px, 1.4vw, 16px);
  }

  .page-about .about-timeline__node {
    grid-template-columns: 1fr;
    height: 100%;
  }

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

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

@media (min-width: 900px) {
  .page-about .about-band__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 1000px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 58fr) minmax(0, 42fr);
  }

  .page-about .about-panel:nth-child(even) {
    transform: translateX(var(--about-shift));
  }

  .page-about .about-panel--split .about-panel__inner {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal],
  .page-about .about-panel,
  .page-about .about-timeline__node,
  .page-about .filter-btn,
  .page-about .about-role {
    transition: none;
  }

  .js .page-about [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .page-about .about-panel:nth-child(even),
  .page-about .about-timeline__node:hover {
    transform: none;
  }
}
<<<END>>>