.page-about {
  --about-rail: 236px;
  --about-gap: clamp(16px, 2.4vw, 36px);
  --about-pad: clamp(24px, 4vw, 52px);
  --about-radius: 4px 22px 4px 22px;
  --about-hair: rgba(247, 247, 242, 0.12);
  --about-soft: rgba(247, 247, 242, 0.72);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
  padding-bottom: clamp(36px, 6vw, 84px);
}

.page-about .breadcrumb {
  padding-top: clamp(14px, 2vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: clamp(16px, 3vw, 32px) 0 clamp(28px, 5vw, 62px);
  position: relative;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 62%;
  background:
    radial-gradient(90% 120% at 88% 0%, rgba(255, 107, 44, 0.14), transparent 62%),
    radial-gradient(70% 100% at 0% 20%, rgba(20, 92, 69, 0.5), transparent 70%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(22px, 4vw, 42px);
  align-items: center;
}

.page-about .about-hero__title {
  margin: 0.16em 0 0.34em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.45rem, 10.5vw, 6rem);
  line-height: 0.94;
  letter-spacing: -0.035em;
  transform: skewX(-2deg);
  transform-origin: left bottom;
}

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

.page-about .about-hero .lede {
  max-width: 44ch;
  font-size: clamp(1rem, 1.55vw, 1.16rem);
  line-height: 1.8;
  color: var(--about-soft);
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin: clamp(18px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-left: 11px;
  border-left: 2px solid var(--lime);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: var(--steel);
}

.page-about .about-hero__meta .data-num {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--lime);
  letter-spacing: 0;
}

.page-about .about-hero__figure {
  margin: 0;
  position: relative;
  border-radius: var(--about-radius);
  overflow: hidden;
  background: var(--green-deep);
  box-shadow: 0 34px 70px -40px rgba(0, 0, 0, 0.95);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-about .about-hero__figure figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 18px;
  font-size: 0.76rem;
  letter-spacing: 0.07em;
  color: rgba(247, 247, 242, 0.86);
  background: linear-gradient(to top, rgba(11, 15, 13, 0.92), transparent);
}

/* ---------- 书脊 + 主体 ---------- */
.page-about .about-spine {
  display: grid;
  gap: clamp(16px, 2.6vw, 30px);
  align-items: start;
}

.page-about .about-spine__label {
  margin: 0 0 10px;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--steel);
  text-transform: uppercase;
}

.page-about .about-spine__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-spine__list li {
  flex: 0 0 auto;
}

.page-about .about-spine__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid var(--about-hair);
  border-radius: 12px 3px 12px 3px;
  font-size: 0.84rem;
  color: var(--paper);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.28s var(--ease), background 0.28s var(--ease), color 0.28s var(--ease);
}

.page-about .about-spine__list a:hover,
.page-about .about-spine__list a:focus-visible {
  border-color: var(--line-lime);
  background: rgba(183, 255, 60, 0.1);
  color: var(--lime);
}

.page-about .about-idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.06em;
}

.page-about .about-spine__body {
  display: grid;
  gap: clamp(10px, 1.4vw, 16px);
  min-width: 0;
}

/* ---------- 章节块 ---------- */
.page-about .about-block {
  position: relative;
  padding: var(--about-pad);
  border-radius: var(--about-radius);
  border: 1px solid var(--about-hair);
  min-width: 0;
}

.page-about .about-block--green {
  background: linear-gradient(158deg, var(--green-deep) 0%, #08261f 84%);
}

.page-about .about-block--pitch {
  background:
    radial-gradient(130% 150% at 100% 0%, rgba(183, 255, 60, 0.13), transparent 58%),
    var(--green-pitch);
  border-color: rgba(183, 255, 60, 0.2);
}

.page-about .about-block--dark {
  background: #0c1311;
}

.page-about .about-block--cream {
  background: var(--cream);
  color: var(--brown);
  border-color: rgba(42, 31, 26, 0.14);
}

.page-about .about-block .eyebrow {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-about .about-block--cream .eyebrow {
  color: #b8431c;
}

.page-about .about-block h2.display-l {
  margin: 0.24em 0 0.5em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.62rem, 4.4vw, 2.7rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
}

.page-about .about-block .prose {
  max-width: 66ch;
}

.page-about .about-block .prose p {
  margin: 0 0 0.85em;
  font-size: clamp(0.96rem, 1.35vw, 1.03rem);
  line-height: 1.82;
  color: var(--about-soft);
}

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

.page-about .about-block--cream .prose p {
  color: #4a3a30;
}

.page-about .about-footnote {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--lime);
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 奶油注解条 ---------- */
.page-about .about-note {
  display: grid;
  gap: 8px;
  padding: clamp(20px, 3.2vw, 36px) var(--about-pad);
  border-radius: var(--about-radius);
  background: var(--cream);
  color: var(--brown);
  border: 1px solid rgba(42, 31, 26, 0.14);
}

.page-about .about-note__mark {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: #b8431c;
}

.page-about .about-note__text {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  line-height: 1.78;
  color: #3a2c24;
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  position: relative;
  margin-top: clamp(18px, 3vw, 30px);
  padding-left: 22px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--lime), rgba(183, 255, 60, 0.06));
}

.page-about .tl-item {
  position: relative;
  margin-bottom: 10px;
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -21px;
  top: 20px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(183, 255, 60, 0.14);
}

.page-about .tl-item.is-current::before {
  animation: aboutPulse 2.4s ease-in-out infinite;
}

@keyframes aboutPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(183, 255, 60, 0.14); }
  50% { box-shadow: 0 0 0 9px rgba(183, 255, 60, 0.05); }
}

.page-about .tl-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px 14px;
  padding: 12px 14px;
  list-style: none;
  cursor: pointer;
  border: 1px solid var(--about-hair);
  border-radius: 12px 3px 12px 3px;
  background: rgba(247, 247, 242, 0.045);
  transition: background 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-about .tl-summary::-webkit-details-marker {
  display: none;
}

.page-about .tl-summary:hover {
  background: rgba(183, 255, 60, 0.08);
  border-color: var(--line-lime);
}

.page-about .tl-summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-about .tl-year {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--lime);
  letter-spacing: 0.02em;
}

.page-about .tl-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--paper);
}

.page-about .tl-mark {
  position: relative;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.page-about .tl-mark::before,
.page-about .tl-mark::after {
  content: "";
  position: absolute;
  inset: 6px 0 auto 0;
  height: 2px;
  background: var(--orange);
  transition: transform 0.28s var(--ease);
}

.page-about .tl-mark::after {
  transform: rotate(90deg);
}

.page-about .tl-item[open] .tl-mark::after {
  transform: rotate(0deg);
}

.page-about .tl-body {
  padding: 12px 14px 16px 16px;
}

.page-about .tl-body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--about-soft);
}

/* ---------- 内嵌图 ---------- */
.page-about .about-inline-media {
  margin: clamp(20px, 3.4vw, 34px) 0 0;
  border-radius: var(--about-radius);
  overflow: hidden;
  background: rgba(11, 15, 13, 0.6);
}

.page-about .about-inline-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-about .about-inline-media figcaption {
  padding: 12px 16px;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--steel);
  border-top: 1px solid var(--about-hair);
}

/* ---------- 团队 ---------- */
.page-about .about-roles {
  display: grid;
  gap: 12px;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-role {
  padding: 20px;
  border: 1px solid rgba(183, 255, 60, 0.22);
  border-radius: 16px 4px 16px 4px;
  background: rgba(11, 15, 13, 0.42);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-about .about-role:hover {
  transform: translateY(-2px);
  border-color: var(--lime);
}

.page-about .about-role__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1;
  color: var(--lime);
}

.page-about .about-role__name {
  margin: 10px 0 8px;
  font-size: 1.06rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .about-role p:last-child {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.76;
  color: var(--about-soft);
}

.page-about .about-inline-link {
  margin-top: clamp(18px, 3vw, 26px);
  display: inline-flex;
}

/* ---------- 规模数据 ---------- */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-stat {
  padding: 16px 14px;
  border-radius: 3px 14px 3px 14px;
  background: rgba(11, 15, 13, 0.5);
  border: 1px solid rgba(247, 247, 242, 0.1);
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 3.4vw, 1.75rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat__label {
  display: block;
  margin-top: 6px;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--steel);
}

/* ---------- 荣誉 ---------- */
.page-about .about-honors {
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .about-honor {
  padding: 18px 18px 16px;
  border-radius: 14px 3px 14px 3px;
  background: rgba(255, 255, 255, 0.42);
  border: 1px solid rgba(42, 31, 26, 0.16);
  cursor: default;
  transition: background 0.28s var(--ease), border-color 0.28s var(--ease), transform 0.28s var(--ease);
}

.page-about .about-honor:hover,
.page-about .about-honor:focus-within,
.page-about .about-honor:focus-visible {
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(184, 67, 28, 0.5);
  transform: translateY(-2px);
  outline: none;
}

.page-about .about-honor__year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 800;
  color: #b8431c;
  font-variant-numeric: tabular-nums;
}

.page-about .about-honor__name {
  margin: 8px 0 0;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--brown);
}

.page-about .about-honor__note {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: #4a3a30;
  transition: max-height 0.34s var(--ease), opacity 0.28s var(--ease), margin 0.28s var(--ease);
}

.page-about .about-honor:hover .about-honor__note,
.page-about .about-honor:focus-within .about-honor__note,
.page-about .about-honor:focus-visible .about-honor__note {
  max-height: 220px;
  opacity: 1;
  margin-top: 10px;
}

/* ---------- 文化 ---------- */
.page-about .about-culture {
  display: grid;
  gap: clamp(20px, 3.4vw, 34px);
  align-items: center;
  margin-top: 6px;
}

.page-about .about-stand {
  padding: 14px;
  border: 1px solid var(--about-hair);
  border-radius: 20px 4px 20px 4px;
  background: rgba(11, 15, 13, 0.55);
}

.page-about .about-stand svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-stand__cap {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--steel);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  background:
    radial-gradient(100% 130% at 0% 100%, rgba(255, 107, 44, 0.16), transparent 62%),
    #0c1311;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .about-cta__actions .btn {
  min-height: 44px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  }

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

  .page-about .about-culture {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (min-width: 1000px) {
  .page-about .about-spine {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: var(--about-gap);
  }

  .page-about .about-spine__rail {
    position: sticky;
    top: 96px;
    padding-top: 10px;
  }

  .page-about .about-spine__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--about-hair);
  }

  .page-about .about-spine__list a {
    width: 100%;
    border-color: transparent;
    border-radius: 0 12px 12px 0;
    padding-left: 16px;
  }

  .page-about .about-spine__list a:hover,
  .page-about .about-spine__list a:focus-visible {
    border-color: transparent;
    border-left: 2px solid var(--lime);
    border-radius: 0 12px 12px 0;
  }

  .page-about .about-stats {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-item.is-current::before {
    animation: none;
  }

  .page-about .about-role:hover,
  .page-about .about-honor:hover,
  .page-about .about-honor:focus-within {
    transform: none;
  }
}
<<<END>>>