.page-about {
  --about-gap: clamp(18px, 4vw, 34px);
  --about-hair: rgba(107, 122, 136, .34);
  background: var(--c-white);
  overflow-x: hidden;
}

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

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  background: var(--c-night);
  color: var(--c-white);
  padding: clamp(20px, 4vw, 32px) 0 clamp(38px, 7vw, 72px);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(182, 255, 60, .055) 0 1px, transparent 1px 15px);
  pointer-events: none;
}

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

.page-about .breadcrumb {
  margin-bottom: clamp(20px, 4vw, 38px);
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--fs-14);
}

.page-about .breadcrumb__list li::after {
  content: "/";
  margin-left: 8px;
  color: rgba(255, 255, 255, .35);
}

.page-about .breadcrumb__list li:last-child::after {
  content: none;
}

.page-about .breadcrumb__list a {
  color: rgba(255, 255, 255, .72);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .12s var(--ease), color .12s var(--ease);
}

.page-about .breadcrumb__list a:hover,
.page-about .breadcrumb__list a:focus-visible {
  color: var(--c-neon);
  border-bottom-color: var(--c-neon);
}

.page-about .breadcrumb__list [aria-current="page"] {
  color: rgba(255, 255, 255, .95);
}

.page-about .about-hero .eyebrow {
  color: var(--c-neon);
  letter-spacing: .14em;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 44px);
}

.page-about .about-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 7.2vw, 66px);
  line-height: 1.14;
  letter-spacing: .02em;
  max-width: 15em;
  overflow-wrap: break-word;
}

.page-about .about-hero__lede {
  margin: 20px 0 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(255, 255, 255, .8);
  max-width: 38em;
}

.page-about .about-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-about .about-hero__tags .tag--outline {
  border-color: rgba(255, 255, 255, .38);
  color: rgba(255, 255, 255, .88);
}

/* 右侧事实卡 */

.page-about .about-facts {
  background: linear-gradient(158deg, rgba(18, 80, 127, .92) 0%, rgba(7, 27, 46, .96) 100%);
  border: 1px solid rgba(182, 255, 60, .3);
  clip-path: var(--cut-md);
  padding: clamp(20px, 4vw, 28px);
}

.page-about .about-facts__heading {
  margin: 0 0 6px;
  font-size: var(--fs-14);
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--c-neon);
}

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

.page-about .about-facts__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

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

.page-about .about-facts__value {
  font-family: var(--font-mono);
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--c-neon);
}

.page-about .about-facts__label {
  font-size: var(--fs-14);
  line-height: 1.6;
  color: rgba(255, 255, 255, .74);
}

/* 首屏宽幅图 */

.page-about .about-hero__media {
  margin-top: clamp(28px, 5vw, 52px);
  position: relative;
  clip-path: var(--cut-lg);
  background: rgba(18, 80, 127, .4);
  overflow: hidden;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: .7;
}

/* ---------- 通用正文 ---------- */

.page-about .about-copy {
  margin-top: clamp(18px, 3vw, 28px);
}

.page-about .about-copy .prose p,
.page-about .about-split .prose p,
.page-about .about-service__body p {
  margin: 0 0 1.1em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--c-body);
}

.page-about .about-copy .prose p:last-child,
.page-about .about-split .prose p:last-child,
.page-about .about-service__body p:last-child {
  margin-bottom: 0;
}

.page-about .prose a {
  color: var(--c-blue);
  text-decoration: none;
  border-bottom: 2px solid rgba(18, 80, 127, .28);
  transition: border-color .12s var(--ease), color .12s var(--ease);
}

.page-about .prose a:hover,
.page-about .prose a:focus-visible {
  color: var(--c-night);
  border-bottom-color: var(--c-neon);
}

/* ---------- 更新节奏 ---------- */

.page-about .about-pulse {
  margin-top: clamp(26px, 4vw, 40px);
}

.page-about .about-pulse__card {
  background: var(--c-white);
  border: 1px solid var(--about-hair);
  border-left: 3px solid var(--c-neon);
  clip-path: var(--cut-sm);
  padding: 22px 20px;
  min-width: 0;
  transition: transform .12s var(--ease), border-color .12s var(--ease);
}

.page-about .about-pulse__card:hover {
  transform: translateY(-4px);
  border-color: var(--c-neon);
}

.page-about .about-pulse__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-36);
  font-weight: 700;
  line-height: 1;
  color: var(--c-blue);
  letter-spacing: -.01em;
}

.page-about .about-pulse__title {
  margin: 14px 0 8px;
  font-size: var(--fs-18);
  font-weight: 700;
  color: var(--c-ink);
}

.page-about .about-pulse__card p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 赛季档案 ---------- */

.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 48px);
  align-items: start;
}

.page-about .about-points {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
}

.page-about .about-points li {
  position: relative;
  padding: 0 0 0 22px;
  margin-bottom: 12px;
  font-size: var(--fs-16);
  line-height: 1.7;
  color: var(--c-body);
}

.page-about .about-points li:last-child {
  margin-bottom: 0;
}

.page-about .about-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 9px;
  height: 9px;
  background: var(--c-neon);
  clip-path: var(--cut-xs);
}

.page-about .about-figure {
  margin: 0;
  min-width: 0;
}

.page-about .about-figure__frame {
  position: relative;
  clip-path: var(--cut-md);
  background: var(--c-night);
  overflow: hidden;
  max-width: 420px;
  margin-inline: auto;
}

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

.page-about .about-figure .media-frame__caption {
  display: block;
  max-width: 420px;
  margin: 12px auto 0;
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--c-mist);
}

/* ---------- 编辑部人数 ---------- */

.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(26px, 4vw, 40px);
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
  clip-path: var(--cut-md);
}

.page-about .about-team__unit {
  background: var(--c-night);
  padding: clamp(22px, 4vw, 32px);
  min-width: 0;
}

.page-about .about-team__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(46px, 10vw, 76px);
  font-weight: 700;
  line-height: .95;
  letter-spacing: -.02em;
  color: var(--c-neon);
}

.page-about .about-team__role {
  display: block;
  margin-top: 10px;
  font-size: var(--fs-18);
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: .06em;
}

.page-about .about-team__desc {
  margin: 12px 0 0;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: rgba(255, 255, 255, .72);
  max-width: 34em;
}

/* ---------- 覆盖范围 ---------- */

.page-about .about-scope {
  margin-top: clamp(24px, 4vw, 38px);
}

.page-about .about-scope__card {
  min-width: 0;
  border-color: var(--about-hair);
}

.page-about .about-scope__card .panel__label {
  position: static;
  display: inline-block;
  margin-bottom: 14px;
}

/* ---------- 合作生态 ---------- */

.page-about .section--night .eyebrow {
  color: var(--c-neon);
}

.page-about .section--night .section-lede {
  color: rgba(255, 255, 255, .76);
}

.page-about .about-net {
  position: relative;
  margin-top: clamp(26px, 4vw, 40px);
  padding: clamp(20px, 4vw, 34px);
  background: rgba(7, 27, 46, .6);
  border: 1px solid rgba(182, 255, 60, .22);
  clip-path: var(--cut-lg);
  overflow: hidden;
  isolation: isolate;
}

.page-about .about-net__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
  z-index: -1;
}

.page-about .about-net__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  position: relative;
}

.page-about .about-net__node {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: rgba(7, 27, 46, .78);
  border: 1px solid rgba(255, 255, 255, .16);
  clip-path: var(--cut-sm);
  transition: transform .12s var(--ease), border-color .12s var(--ease), background-color .12s var(--ease);
}

.page-about .about-net__node:hover,
.page-about .about-net__node:focus-within {
  transform: translateY(-4px);
  border-color: var(--c-neon);
  background: rgba(18, 80, 127, .82);
}

.page-about .about-net__node--hub {
  border-color: rgba(182, 255, 60, .5);
}

.page-about .about-net__count {
  font-family: var(--font-mono);
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1;
  color: var(--c-neon);
}

.page-about .about-net__name {
  font-size: var(--fs-18);
  font-weight: 700;
  color: var(--c-white);
}

.page-about .about-net__type {
  font-size: var(--fs-14);
  line-height: 1.6;
  color: rgba(255, 255, 255, .7);
}

/* ---------- 版本节点时间轴 ---------- */

.page-about .about-timeline {
  list-style: none;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
}

.page-about .about-timeline__row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  position: relative;
  padding-bottom: 22px;
}

.page-about .about-timeline__row::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 46px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(18, 80, 127, .48), rgba(18, 80, 127, .05));
}

.page-about .about-timeline__row:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__row:last-child::before {
  content: none;
}

.page-about .about-timeline__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--c-night);
  color: var(--c-neon);
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: .04em;
  clip-path: var(--cut-xs);
  position: relative;
  z-index: 1;
}

.page-about .about-node {
  background: var(--c-white);
  border: 1px solid var(--about-hair);
  clip-path: var(--cut-sm);
  transition: border-color .12s var(--ease);
  min-width: 0;
}

.page-about .about-node[open] {
  border-color: var(--c-neon);
}

.page-about .about-node__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-node__head:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: -2px;
}

.page-about .about-node__season {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--c-blue);
  letter-spacing: .04em;
}

.page-about .about-node__name {
  font-size: var(--fs-16);
  font-weight: 600;
  color: var(--c-ink);
  overflow-wrap: break-word;
}

.page-about .about-node__arrow {
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--c-blue);
  border-bottom: 2px solid var(--c-blue);
  transform: rotate(45deg);
  transition: transform .16s var(--ease);
  flex: none;
}

.page-about .about-node[open] .about-node__arrow {
  transform: rotate(-135deg);
}

.page-about .about-node__panel {
  padding: 0 18px 18px;
  border-top: 1px solid rgba(107, 122, 136, .22);
  margin-top: 2px;
}

.page-about .about-node__panel p {
  margin: 14px 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-body);
  max-width: 42em;
}

/* ---------- 服务时段 ---------- */

.page-about .about-service {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  margin-top: clamp(24px, 4vw, 36px);
  align-items: start;
}

.page-about .about-service__hours {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 4vw, 30px);
  background: var(--c-night);
  border-left: 4px solid var(--c-neon);
  clip-path: var(--cut-md);
}

.page-about .about-service__label {
  font-size: var(--fs-14);
  letter-spacing: .16em;
  color: var(--c-neon);
}

.page-about .about-service__time {
  font-family: var(--font-mono);
  font-size: clamp(18px, 4vw, 24px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--c-white);
  letter-spacing: .01em;
}

.page-about .about-service__time--accent {
  color: var(--c-neon);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-about .about-net__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: clamp(32px, 4vw, 48px) 0 clamp(48px, 6vw, 84px);
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
    gap: clamp(34px, 5vw, 64px);
    align-items: start;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
    gap: clamp(36px, 5vw, 60px);
  }

  .page-about .about-figure__frame {
    margin-inline: 0;
  }

  .page-about .about-figure .media-frame__caption {
    margin-inline: 0;
    margin-left: 0;
  }

  .page-about .about-service {
    grid-template-columns: minmax(260px, .6fr) minmax(0, 1.4fr);
    gap: clamp(30px, 5vw, 56px);
  }

  .page-about .about-timeline__row {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 22px;
    padding-bottom: 26px;
  }

  .page-about .about-timeline__row::before {
    left: 27px;
    top: 56px;
  }

  .page-about .about-timeline__num {
    width: 56px;
    height: 56px;
    font-size: var(--fs-18);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-pulse__card,
  .page-about .about-net__node,
  .page-about .about-node__arrow,
  .page-about .breadcrumb__list a {
    transition: none;
  }

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