.page-about {
  --about-amber-deep: #8A5A12;
  --about-hair: rgba(6, 12, 24, 0.14);
  --about-hair-dark: rgba(234, 240, 250, 0.12);
}

/* ---------------- 首屏 ---------------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 56px 0 52px;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -34%;
  width: 62%;
  height: 76%;
  background: radial-gradient(circle at 55% 45%, rgba(61, 255, 160, 0.10), transparent 68%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 34px;
  margin-top: 26px;
}

.page-about .about-hero__title {
  margin: 16px 0 20px;
  font-family: var(--font-narrow);
  font-weight: 300;
  font-size: clamp(34px, 8.6vw, 78px);
  line-height: 0.99;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-about .about-hero__lede {
  max-width: 46ch;
  color: var(--chalk);
  opacity: 0.86;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}

.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 12px;
  border-left: 2px solid var(--ink-700);
}

.page-about .about-hero__facts strong {
  font-size: 24px;
  font-weight: 500;
  color: var(--neon);
  letter-spacing: -0.02em;
}

.page-about .about-hero__facts span {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-about .about-hero__visual {
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}

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

/* ---------------- 发展历程 ---------------- */
.page-about .about-road {
  padding: 58px 0 66px;
}

.page-about .about-road__head {
  max-width: 58ch;
  margin-bottom: 34px;
}

.page-about .about-road__title {
  margin: 14px 0 14px;
  font-family: var(--font-narrow);
  font-weight: 300;
  font-size: clamp(26px, 5.6vw, 48px);
  line-height: 1.06;
  letter-spacing: -0.01em;
}

.page-about .about-road__note {
  margin: 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-about .about-road__grid {
  display: grid;
  gap: 30px;
}

.page-about .about-road__figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-road__timeline {
  list-style: none;
  margin: 0;
  padding: 4px 0 4px 26px;
  border-left: 2px solid var(--about-hair);
  display: grid;
  gap: 26px;
}

.page-about .about-road__node {
  position: relative;
  transition: transform 0.28s var(--ease);
}

.page-about .about-road__node::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 178, 58, 0.22);
  transition: box-shadow 0.28s var(--ease), transform 0.28s var(--ease);
}

.page-about .about-road__node:hover,
.page-about .about-road__node:focus-within {
  transform: translateX(4px);
}

.page-about .about-road__node:hover::before,
.page-about .about-road__node:focus-within::before {
  transform: scale(1.2);
  box-shadow: 0 0 0 8px rgba(255, 178, 58, 0.28);
}

.page-about .about-road__year {
  display: block;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--about-amber-deep);
}

.page-about .about-road__name {
  margin: 6px 0 6px;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink-900);
}

.page-about .about-road__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  max-width: 40ch;
}

/* ---------------- 数据来源 ---------------- */
.page-about .about-proof {
  padding: 0 0 66px;
}

.page-about .about-proof__grid {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-about .about-proof__title {
  margin: 14px 0 16px;
  font-family: var(--font-narrow);
  font-weight: 300;
  font-size: clamp(26px, 5.6vw, 46px);
  line-height: 1.06;
  letter-spacing: -0.01em;
}

.page-about .about-proof__text {
  margin: 0 0 14px;
  font-size: 17px;
  line-height: 1.78;
  color: var(--ink-700);
  max-width: 42ch;
}

.page-about .about-proof__figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-proof__steps {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-proof__step {
  padding: 20px 18px 18px;
  background: rgba(6, 12, 24, 0.045);
  border-top: 3px solid var(--amber);
  border-radius: var(--radius-sm);
}

.page-about .about-proof__stepnum {
  display: block;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--about-amber-deep);
}

.page-about .about-proof__steptitle {
  margin: 8px 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink-900);
}

.page-about .about-proof__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-700);
}

/* ---------------- 裁判名单 ---------------- */
.page-about .about-whistle {
  padding: 62px 0 58px;
}

.page-about .about-whistle__title {
  margin: 14px 0 18px;
  font-family: var(--font-narrow);
  font-weight: 300;
  font-size: clamp(26px, 6vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--chalk);
  max-width: 22ch;
}

.page-about .about-whistle__text {
  margin: 0;
  max-width: 56ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--chalk);
  opacity: 0.82;
}

.page-about .about-whistle__grid {
  margin-top: 34px;
  display: grid;
  gap: 14px;
}

.page-about .about-whistle__stat {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  background: var(--ink-800);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--neon);
}

.page-about .about-whistle__num {
  font-size: 34px;
  line-height: 1;
  font-weight: 500;
  color: var(--neon);
  letter-spacing: -0.02em;
}

.page-about .about-whistle__num--amber {
  color: var(--amber);
}

.page-about .about-whistle__stat:last-child {
  border-left-color: var(--amber);
}

.page-about .about-whistle__label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-about .about-whistle__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-whistle__list li {
  padding: 7px 14px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--neon);
  background: rgba(61, 255, 160, 0.08);
  border: 1px solid rgba(61, 255, 160, 0.28);
  border-radius: 999px;
}

/* ---------------- 团队 ---------------- */
.page-about .about-team {
  padding: 0 0 62px;
}

.page-about .about-team__grid {
  display: grid;
  gap: 30px;
  align-items: start;
}

.page-about .about-team__title {
  margin: 14px 0 16px;
  font-family: var(--font-narrow);
  font-weight: 300;
  font-size: clamp(26px, 5.6vw, 46px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-about .about-team__text {
  margin: 0 0 14px;
  max-width: 44ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--chalk);
  opacity: 0.82;
}

.page-about .about-team__cells {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .about-team__cell {
  padding: 16px 14px;
  background: var(--ink-800);
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
}

.page-about .about-team__cell:nth-child(2) {
  transform: translateY(10px);
}

.page-about .about-team__cell:nth-child(4) {
  transform: translateY(10px);
}

.page-about .about-team__num {
  display: block;
  font-size: 30px;
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-about .about-team__num--neon {
  color: var(--neon);
}

.page-about .about-team__num--amber {
  color: var(--amber);
}

.page-about .about-team__cap {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------------- 版本与节奏 ---------------- */
.page-about .about-cycle {
  padding: 58px 0 62px;
}

.page-about .about-cycle__head {
  max-width: 54ch;
  margin-bottom: 26px;
}

.page-about .about-cycle__title {
  margin: 14px 0 0;
  font-family: var(--font-narrow);
  font-weight: 300;
  font-size: clamp(26px, 6vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-about .about-cycle__figure {
  margin: 0 0 30px;
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-cycle__grid {
  display: grid;
  gap: 20px;
}

.page-about .about-cycle__item {
  padding-top: 16px;
  border-top: 2px solid var(--ink-700);
}

.page-about .about-cycle__tick {
  display: block;
  width: 30px;
  height: 3px;
  margin-bottom: 12px;
  background: var(--amber);
}

.page-about .about-cycle__name {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--chalk);
}

.page-about .about-cycle__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--chalk);
  opacity: 0.78;
  max-width: 36ch;
}

/* ---------------- 继续看 ---------------- */
.page-about .about-next {
  padding: 0 0 66px;
}

.page-about .about-next__title {
  margin: 14px 0 26px;
  font-family: var(--font-narrow);
  font-weight: 300;
  font-size: clamp(24px, 5.2vw, 42px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--chalk);
  max-width: 20ch;
}

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

.page-about .about-next__card {
  display: block;
  padding: 20px 18px;
  color: inherit;
  text-decoration: none;
}

.page-about .about-next__card h3 {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--chalk);
}

.page-about .about-next__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-next__foot {
  margin: 24px 0 0;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-about .about-next__foot a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 255, 160, 0.4);
}

.page-about .about-next__foot a:hover {
  border-bottom-color: var(--neon);
}

/* ---------------- 响应式 ---------------- */
@media (min-width: 620px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .about-cycle__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 92px 0 80px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 56px;
    align-items: center;
    margin-top: 40px;
  }

  .page-about .about-hero__visual {
    max-width: 480px;
  }

  .page-about .about-road {
    padding: 88px 0 96px;
  }

  .page-about .about-road__head {
    margin-bottom: 48px;
  }

  .page-about .about-road__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 52px;
    align-items: start;
  }

  .page-about .about-road__figure {
    position: sticky;
    top: calc(var(--top-h) + 24px);
  }

  .page-about .about-proof {
    padding-bottom: 96px;
  }

  .page-about .about-proof__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 52px;
  }

  .page-about .about-proof__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    margin-top: 48px;
  }

  .page-about .about-whistle {
    padding: 88px 0 80px;
  }

  .page-about .about-whistle__grid {
    margin-top: 42px;
  }

  .page-about .about-team {
    padding-bottom: 88px;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 52px;
  }

  .page-about .about-team__cells {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-cycle {
    padding: 84px 0 88px;
  }

  .page-about .about-cycle__head {
    margin-bottom: 34px;
  }

  .page-about .about-next {
    padding-bottom: 92px;
  }

  .page-about .about-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .about-next__card {
    padding: 24px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-road__node,
  .page-about .about-road__node::before,
  .page-about .about-team__cell {
    transition: none;
  }

  .page-about .about-road__node:hover,
  .page-about .about-road__node:focus-within {
    transform: none;
  }

  .page-about .about-road__node:hover::before,
  .page-about .about-road__node:focus-within::before {
    transform: none;
    box-shadow: 0 0 0 4px rgba(255, 178, 58, 0.22);
  }
}
<<<END>>>