.page-about {
  --about-track-w: 128px;
  --about-pad-y: clamp(2.6rem, 6vw, 5rem);
  background: var(--paper);
  overflow-x: hidden;
}

/* ---------- 面包屑与顶部条 ---------- */
.page-about .about-topbar {
  background: var(--night);
  padding: clamp(0.9rem, 2vw, 1.4rem) 0 clamp(0.4rem, 1vw, 0.8rem);
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.page-about .breadcrumb__item {
  color: var(--mist);
  opacity: 0.72;
}

.page-about .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--danxia);
  opacity: 1;
}

.page-about .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-about .breadcrumb__link:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  background: var(--night);
  color: var(--paper);
  padding: clamp(1.4rem, 3vw, 2.2rem) 0 clamp(2.6rem, 6vw, 5rem);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
}

.page-about .kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-about .kicker::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--danxia);
}

.page-about .about-hero h1 {
  margin: 0.7rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.15rem, 7.2vw, 4.5rem);
  line-height: 1.03;
  letter-spacing: -0.015em;
}

.page-about .about-hero__lede {
  margin: clamp(1rem, 2.4vw, 1.5rem) 0 0;
  max-width: 48ch;
  color: var(--mist);
  font-size: clamp(0.96rem, 1.6vw, 1.06rem);
  line-height: 1.8;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.2rem;
  margin: clamp(1.5rem, 3.4vw, 2.4rem) 0 0;
  padding: clamp(0.9rem, 2vw, 1.2rem) 0 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-about .about-hero__stats li {
  padding: 0.35rem 0;
}

.page-about .about-hero__n {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 4.2vw, 2.4rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
  text-shadow: 2px 2px 0 rgba(180, 68, 42, 0.55);
}

.page-about .about-hero__k {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--mist);
  opacity: 0.78;
}

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

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
  filter: saturate(0.9) contrast(1.04);
  box-shadow: var(--shadow-soft);
}

.page-about .about-hero__figure figcaption {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--mist);
  opacity: 0.68;
}

/* ---------- 通用小标题 ---------- */
.page-about .about-head__kicker {
  margin: 0 0 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--amber);
}

.page-about .about-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 4.4vw, 2.9rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .about-head p {
  margin: 0.85rem 0 0;
  max-width: 58ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 来路画布 ---------- */
.page-about .about-origin {
  background: var(--night);
  color: var(--paper);
  padding: var(--about-pad-y) 0;
  border-top: 1px solid var(--line-dark);
}

.page-about .about-canvas {
  display: grid;
  gap: clamp(1.3rem, 3vw, 2rem);
  margin-top: clamp(1.8rem, 4vw, 3rem);
}

.page-about .about-track__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  color: var(--mist);
  opacity: 0.6;
}

.page-about .about-track__list {
  display: flex;
  gap: 0.4rem;
  margin: 0;
  padding: 0 0 0.35rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-track__link {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.5rem 0.7rem;
  white-space: nowrap;
  text-decoration: none;
  color: var(--mist);
  border-left: 2px solid var(--line-dark);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .about-track__link:hover,
.page-about .about-track__link:focus-visible {
  color: var(--paper);
  border-color: var(--amber);
  background: rgba(242, 179, 61, 0.1);
}

.page-about .about-track__link:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
}

.page-about .about-track__year {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.page-about .about-track__label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  opacity: 0.75;
}

.page-about .about-panels {
  display: grid;
  gap: clamp(0.9rem, 2.4vw, 1.5rem);
  min-width: 0;
}

.page-about .about-panel {
  position: relative;
  padding: clamp(1.1rem, 3vw, 2rem);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(18, 42, 63, 0.82), rgba(11, 27, 43, 0.55));
  box-shadow: var(--shadow-soft);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .about-panel:hover {
  border-color: rgba(242, 179, 61, 0.5);
}

.page-about .about-panel:target {
  border-color: var(--amber);
  box-shadow: inset 0 0 0 1px var(--amber), var(--shadow-soft);
}

.page-about .about-panel__year {
  display: block;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--amber);
  text-shadow: 2px 2px 0 rgba(126, 43, 28, 0.75);
}

.page-about .about-panel__title {
  margin: 0.55rem 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.18rem, 2.6vw, 1.55rem);
  line-height: 1.28;
  color: var(--paper);
}

.page-about .about-panel p {
  margin: 0;
  max-width: 64ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  background: var(--paper);
  color: var(--ink);
  padding: var(--about-pad-y) 0;
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
}

.page-about .about-team .about-head h2,
.page-about .about-why .about-head h2 {
  color: var(--ink);
}

.page-about .about-team .about-head__kicker,
.page-about .about-why .about-head__kicker {
  color: var(--danxia);
}

.page-about .about-team__lede {
  margin: 1rem 0 0;
  max-width: 44ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-about .about-team__figure {
  margin: clamp(1.2rem, 3vw, 1.8rem) 0 0;
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
  filter: saturate(0.86) contrast(1.02);
}

.page-about .about-team__body {
  min-width: 0;
}

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

.page-about .about-role {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 0.35rem 0.8rem;
  padding: clamp(0.8rem, 2vw, 1.1rem) 0;
  border-bottom: 1px solid var(--line-light);
}

.page-about .about-role__name {
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-about .about-role__count {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--danxia);
}

.page-about .about-role__bar {
  grid-column: 1 / -1;
  display: block;
  height: 5px;
  border-radius: 99px;
  background: rgba(17, 22, 28, 0.09);
  overflow: hidden;
}

.page-about .about-role__fill {
  display: block;
  width: var(--fill, 0%);
  height: 100%;
  background: linear-gradient(90deg, var(--danxia), var(--danxia-deep));
  transition: background-color var(--dur) var(--ease), filter var(--dur) var(--ease);
}

.page-about .about-role:hover .about-role__fill {
  background: linear-gradient(90deg, var(--pitch), var(--danxia));
}

.page-about .about-role__duty {
  grid-column: 1 / -1;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-about .about-flow {
  margin-top: clamp(1.4rem, 3vw, 2rem);
  padding: clamp(1rem, 2.4vw, 1.4rem);
  border-left: 3px solid var(--danxia);
  background: rgba(180, 68, 42, 0.06);
}

.page-about .about-flow__title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-about .about-flow__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.page-about .about-flow__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.6rem;
  align-items: baseline;
}

.page-about .about-flow__idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--danxia);
}

.page-about .about-flow__txt {
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 覆盖版图 ---------- */
.page-about .about-map {
  position: relative;
  overflow: hidden;
  background: var(--carbon);
  color: var(--paper);
  padding: var(--about-pad-y) 0;
}

.page-about .about-map__bg {
  position: absolute;
  inset: 0;
}

.page-about .about-map__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  filter: saturate(0.72) contrast(1.05);
}

.page-about .about-map__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(17, 22, 28, 0.92), rgba(11, 27, 43, 0.82) 52%, rgba(17, 22, 28, 0.95));
}

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

.page-about .about-map__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
}

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

.page-about .about-dots {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
}

.page-about .about-map__dots figcaption {
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--mist);
  opacity: 0.65;
}

.page-about .about-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line-dark);
  background: var(--line-dark);
}

.page-about .about-band li {
  padding: clamp(0.8rem, 2vw, 1.05rem);
  background: rgba(11, 27, 43, 0.66);
}

.page-about .about-band__n {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--amber);
  text-shadow: 2px 2px 0 rgba(126, 43, 28, 0.6);
}

.page-about .about-band__k {
  display: block;
  margin-top: 0.42rem;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--mist);
  opacity: 0.82;
}

.page-about .about-map__side {
  min-width: 0;
}

.page-about .about-map__note {
  margin: 1rem 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-map__partners {
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  max-width: 66ch;
  padding-top: 1rem;
  border-top: 1px solid var(--line-dark);
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 为什么 ---------- */
.page-about .about-why {
  background: var(--paper);
  color: var(--ink);
  padding: var(--about-pad-y) 0;
}

.page-about .about-why__list {
  display: grid;
  gap: clamp(1rem, 3vw, 1.8rem);
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-why__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 0.9rem;
  padding-top: 0.9rem;
  border-top: 2px solid var(--danxia);
}

.page-about .about-why__idx {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--danxia);
}

.page-about .about-why__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.12rem;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-about .about-why__item p {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 联系 ---------- */
.page-about .about-reach {
  background: var(--night);
  color: var(--paper);
  padding: var(--about-pad-y) 0;
  border-top: 1px solid var(--line-dark);
}

.page-about .about-reach__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

.page-about .about-reach__lede {
  margin: 1rem 0 0;
  max-width: 50ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-reach__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

.page-about .about-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.62rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-btn--amber {
  background: var(--danxia);
  color: var(--paper);
}

.page-about .about-btn--amber:hover {
  background: var(--danxia-deep);
}

.page-about .about-btn--ghost {
  border-color: var(--line-dark);
  color: var(--paper);
  background: transparent;
}

.page-about .about-btn--ghost:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.page-about .about-btn:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 3px;
}

.page-about .about-reach__card {
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(18, 42, 63, 0.8), rgba(11, 27, 43, 0.5));
}

.page-about .about-reach__line {
  display: block;
  margin: 0;
  padding: 0.6rem 0;
  border-bottom: 1px dashed var(--line-dark);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--paper);
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color var(--dur) var(--ease);
}

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

.page-about a.about-reach__line:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 3px;
}

.page-about .about-reach__line span {
  display: block;
  margin-bottom: 0.22rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--mist);
  opacity: 0.75;
}

.page-about .about-reach__note {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-reach__more {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 0.9rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.page-about .about-reach__more a {
  color: var(--volt);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-about .about-reach__more a:hover,
.page-about .about-reach__more a:focus-visible {
  border-color: var(--volt);
}

.page-about .about-reach__more a:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-panels {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-about .about-panel {
    grid-column: 1 / span 11;
  }

  .page-about .about-panel--wide {
    grid-column: 1 / span 12;
  }

  .page-about .about-panel--mid {
    grid-column: 1 / span 10;
  }

  .page-about .about-panel--narrow {
    grid-column: 2 / span 9;
  }

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

@media (min-width: 880px) {
  .page-about .about-map__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-canvas {
    grid-template-columns: var(--about-track-w) minmax(0, 1fr);
    gap: clamp(1.6rem, 3.4vw, 3rem);
    align-items: start;
  }

  .page-about .about-track {
    position: sticky;
    top: calc(var(--bar-h) + 1.5rem);
  }

  .page-about .about-track__list {
    flex-direction: column;
    gap: 0.15rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-track__link {
    border-left: 2px solid var(--line-dark);
    border-bottom: 0;
    padding: 0.5rem 0.75rem;
  }
}

@media (max-width: 959px) {
  .page-about .about-track__link {
    border-left: 0;
    border-bottom: 2px solid var(--line-dark);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-panel,
  .page-about .about-track__link,
  .page-about .about-role__fill,
  .page-about .about-btn,
  .page-about .breadcrumb__link {
    transition: none;
  }
}
<<<END>>>

.page-about {
  --fill: currentColor;
}