.page-about {
  --about-pad: clamp(56px, 9vw, 128px);
  --about-gap: clamp(24px, 4vw, 56px);
  --about-tl-pad: clamp(20px, 3vw, 36px);
  --about-gold-deep: #9A6A00;
  background: var(--fx-white);
  color: var(--fx-ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(22px, 3.5vw, 44px) 0 var(--about-pad);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(31, 199, 212, .12), transparent 62%),
    linear-gradient(180deg, #FFFFFF 0%, var(--fx-white) 100%);
  border-bottom: 1px solid var(--fx-line);
}

.page-about .about-crumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--fx-slate);
}

.page-about .about-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--fx-line);
}

.page-about .about-crumb a {
  color: var(--fx-ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--fx-ease), border-color .25s var(--fx-ease);
}

.page-about .about-crumb a:hover {
  color: var(--fx-orange);
  border-bottom-color: var(--fx-orange);
}

.page-about .about-crumb li[aria-current="page"] {
  color: var(--fx-ink);
  font-weight: 700;
}

.page-about .about-hero__grid {
  display: grid;
  gap: var(--about-gap);
  margin-top: clamp(28px, 5vw, 56px);
  align-items: end;
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-size: clamp(34px, 7.2vw, 74px);
  line-height: 1.03;
  letter-spacing: -.045em;
  font-weight: 900;
}

.page-about .about-hero__lead {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.2vw, 16.5px);
  line-height: 1.9;
  color: var(--fx-ink-soft);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .about-hero__figure {
  margin: 0;
  border-top: 2px solid var(--fx-orange);
  background: var(--fx-ink);
}

.page-about .about-figbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--fx-slate);
  background: var(--fx-ink);
}

.page-about .about-figbar .fx-num {
  color: var(--fx-cyan);
  letter-spacing: .08em;
}

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

.page-about .about-hero__caption {
  display: block;
  padding: 12px 12px 16px;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(247, 249, 251, .62);
  background: var(--fx-ink);
}

/* ---------- 章节目录 ---------- */
.page-about .about-toc {
  margin-top: clamp(40px, 6vw, 72px);
}

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

.page-about .about-toc__list a {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 16px 18px;
  background: var(--fx-white);
  color: var(--fx-ink);
  text-decoration: none;
  font-size: 14px;
  border-top: 2px solid transparent;
  transition: color .25s var(--fx-ease), border-color .25s var(--fx-ease), background-color .25s var(--fx-ease);
}

.page-about .about-toc__list a:hover {
  color: var(--fx-orange);
  border-top-color: var(--fx-orange);
  background: #FFFFFF;
}

.page-about .about-toc__num {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--fx-slate);
}

/* ---------- 通用章节 ---------- */
.page-about .about-chapter {
  position: relative;
  padding: var(--about-pad) 0;
}

.page-about .about-head {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  margin-bottom: clamp(36px, 5vw, 64px);
}

.page-about .about-side {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.page-about .about-chapter__num {
  font-size: clamp(36px, 5vw, 58px);
  line-height: .9;
  font-weight: 900;
  letter-spacing: -.03em;
  color: var(--fx-orange);
}

@supports (-webkit-text-stroke: 1px red) {
  .page-about .about-chapter__num {
    color: transparent;
    -webkit-text-stroke: 1px var(--fx-orange);
  }
}

.page-about .about-vlabel {
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--fx-slate);
  border-left: 1px solid var(--fx-line);
  padding-left: 10px;
  line-height: 1;
}

.page-about .about-chapter__title {
  margin: 0;
  font-size: clamp(27px, 4.2vw, 46px);
  line-height: 1.14;
  letter-spacing: -.035em;
  font-weight: 900;
}

.page-about .about-head__lead {
  margin: clamp(14px, 2vw, 22px) 0 0;
  max-width: 60ch;
  font-size: clamp(14.5px, 1.15vw, 16.5px);
  line-height: 1.9;
  color: var(--fx-ink-soft);
}

.page-about .about-prose p {
  margin: 0 0 1.1em;
  max-width: 62ch;
  font-size: clamp(15px, 1.15vw, 16px);
  line-height: 1.95;
  color: var(--fx-ink-soft);
}

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

/* ---------- 01 内容起点 ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: var(--about-gap);
}

/* ---------- 02 赛季脉络 ---------- */
.page-about .about-tl {
  background: linear-gradient(180deg, var(--fx-white) 0%, #FFFFFF 45%, var(--fx-white) 100%);
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--about-tl-pad);
  border-left: 1px solid var(--fx-line);
  display: grid;
  gap: clamp(30px, 4vw, 46px);
}

.page-about .about-timeline__item {
  position: relative;
}

.page-about .about-timeline__dot {
  position: absolute;
  top: 6px;
  left: calc(-1 * var(--about-tl-pad) - 5px);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--fx-white);
  border: 2px solid var(--fx-orange);
}

.page-about .about-timeline__season {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 10px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--fx-orange);
  background: rgba(232, 74, 42, .08);
}

.page-about .about-timeline__title {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.1vw, 23px);
  letter-spacing: -.02em;
  font-weight: 800;
}

.page-about .about-timeline__desc {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--fx-ink-soft);
}

.page-about .about-timeline .fx-disclosure {
  margin-top: 14px;
  max-width: 64ch;
}

.page-about .about-timeline .fx-disclosure__panel {
  padding-top: 10px;
}

.page-about .about-timeline .fx-disclosure__panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--fx-ink-soft);
}

.page-about .about-figure {
  margin: clamp(36px, 5vw, 64px) 0 0;
  border-top: 1px solid var(--fx-line);
  padding-top: clamp(20px, 3vw, 32px);
}

.page-about .about-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  background: var(--fx-ink-2);
}

.page-about .about-figure__caption {
  display: block;
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .03em;
  color: var(--fx-slate);
}

/* ---------- 03 团队构成 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-about .about-team__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--fx-line);
  border: 1px solid var(--fx-line);
}

.page-about .about-team__stats .fx-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 2.4vw, 26px);
  background: #FFFFFF;
}

.page-about .about-team__stats .fx-stat__value {
  font-size: clamp(32px, 4.6vw, 50px);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -.05em;
  color: var(--fx-ink);
}

.page-about .about-team__stats .fx-stat__value--orange { color: var(--fx-orange); }
.page-about .about-team__stats .fx-stat__value--cyan { color: var(--fx-teal); }
.page-about .about-team__stats .fx-stat__value--gold { color: var(--about-gold-deep); }

.page-about .about-team__stats .fx-stat__label {
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--fx-slate);
}

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

.page-about .about-team__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  background: var(--fx-ink-2);
}

.page-about .about-team__notes {
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--fx-line);
}

.page-about .about-team__text {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.95;
  color: var(--fx-ink-soft);
}

.page-about .about-team__caps {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-team__caps li {
  padding: 7px 13px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--fx-ink-soft);
  border: 1px solid var(--fx-line);
  background: #FFFFFF;
  transition: border-color .25s var(--fx-ease), color .25s var(--fx-ease);
}

.page-about .about-team__caps li:hover {
  border-color: var(--fx-cyan);
  color: var(--fx-teal);
}

/* ---------- 04 内容准则 ---------- */
.page-about .about-principles {
  background: var(--fx-ink);
  color: var(--fx-white);
  border-top: 3px solid var(--fx-orange);
}

.page-about .about-principles .about-chapter__num {
  color: var(--fx-orange-lite);
  -webkit-text-stroke: 0;
}

.page-about .about-principles .about-vlabel {
  color: rgba(247, 249, 251, .5);
  border-left-color: var(--fx-line-invert);
}

.page-about .about-principles .about-chapter__title {
  color: var(--fx-white);
}

.page-about .about-principles .about-head__lead {
  color: var(--fx-white-soft);
}

.page-about .about-principles__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-about .about-principles__list li {
  display: grid;
  gap: 10px;
  padding: clamp(22px, 3vw, 32px) 0;
  border-top: 1px solid var(--fx-line-invert);
}

.page-about .about-principles__list li:last-child {
  border-bottom: 1px solid var(--fx-line-invert);
}

.page-about .about-principles__idx {
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--fx-cyan);
}

.page-about .about-principles__list h3 {
  margin: 0;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--fx-white);
}

.page-about .about-principles__list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--fx-white-soft);
}

.page-about .about-principles__note {
  margin: clamp(28px, 4vw, 44px) 0 0;
  max-width: 70ch;
  padding-left: 14px;
  border-left: 2px solid var(--fx-gold);
  font-size: 13.5px;
  line-height: 1.9;
  color: rgba(247, 249, 251, .66);
}

.page-about .about-principles__note a {
  color: var(--fx-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 199, 212, .45);
  transition: color .25s var(--fx-ease), border-color .25s var(--fx-ease);
}

.page-about .about-principles__note a:hover {
  color: var(--fx-orange-lite);
  border-bottom-color: var(--fx-orange-lite);
}

/* ---------- 05 协作方向 ---------- */
.page-about .about-partners__grid {
  display: grid;
  gap: 1px;
  background: var(--fx-line);
  border: 1px solid var(--fx-line);
}

.page-about .about-partner {
  position: relative;
  padding: clamp(22px, 3vw, 30px);
  background: #FFFFFF;
}

.page-about .about-partner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--fx-orange);
  transition: width .35s var(--fx-ease);
}

.page-about .about-partner:hover::before {
  width: 100%;
}

.page-about .about-partner__idx {
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--fx-slate);
}

.page-about .about-partner h3 {
  margin: 14px 0 10px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-about .about-partner p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--fx-ink-soft);
}

.page-about .about-partners__cta {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--fx-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, 3vw, 32px);
}

.page-about .about-partners__cta p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--fx-ink-soft);
}

.page-about .about-partners__cta a:not(.fx-btn) {
  color: var(--fx-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 74, 42, .35);
}

.page-about .about-partners__cta a:not(.fx-btn):hover {
  border-bottom-color: var(--fx-orange);
}

/* ---------- 收尾 ---------- */
.page-about .about-outro {
  padding: clamp(40px, 6vw, 72px) 0;
  background: var(--fx-ink-2);
  border-bottom: 3px solid var(--fx-orange);
}

.page-about .about-outro__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: clamp(18px, 3vw, 32px);
}

.page-about .about-outro__text {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
  color: var(--fx-white-soft);
}

/* ---------- 响应式 ---------- */
@media (max-width: 899px) {
  .page-about .about-vlabel {
    writing-mode: horizontal-tb;
    letter-spacing: .22em;
    border-left: 0;
    border-bottom: 1px solid var(--fx-line);
    padding: 0 0 6px;
  }

  .page-about .about-principles .about-vlabel {
    border-bottom-color: var(--fx-line-invert);
  }

  .page-about .about-head {
    margin-bottom: clamp(28px, 6vw, 44px);
  }
}

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

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

  .page-about .about-principles__list li {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
    column-gap: 20px;
  }

  .page-about .about-principles__list h3 {
    grid-column: 2;
  }

  .page-about .about-principles__list p {
    grid-column: 2;
  }
}

@media (min-width: 860px) {
  .page-about .about-principles__list li {
    grid-template-columns: 96px minmax(180px, 260px) minmax(0, 1fr);
    column-gap: clamp(20px, 3vw, 40px);
  }

  .page-about .about-principles__list h3 {
    grid-column: 2;
  }

  .page-about .about-principles__list p {
    grid-column: 3;
  }
}

@media (min-width: 900px) {
  .page-about .about-head {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-about .about-origin__grid {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  }
}

@media (min-width: 920px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-about .about-toc__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-about .about-partners__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-toc__list a,
  .page-about .about-partner::before,
  .page-about .about-team__caps li,
  .page-about .about-principles__note a {
    transition: none;
  }
}
<<<END>>>