.page-about {
  --about-rule: rgba(167, 198, 221, .38);
  --about-rule-dark: rgba(167, 198, 221, .22);
  --about-ink-2: #46617a;
  --about-body: rgba(245, 249, 252, .74);
  background: var(--snow);
  color: var(--ink);
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  padding-block: clamp(16px, 2.2vw, 28px);
}

/* ---------- 通用正文段落 ---------- */
.page-about .about-body {
  margin: 0 0 1.15em;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--about-ink-2);
}

.page-about .about-lead {
  margin: 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(245, 249, 252, .7);
}

.page-about .about-sec-head {
  max-width: 64ch;
  margin-bottom: clamp(32px, 4.4vw, 62px);
}

.page-about .about-sec-head .title-lg {
  margin: .2em 0 .55em;
}

.page-about .about-origin .about-sec-head .title-lg,
.page-about .about-team .about-sec-head .title-lg {
  color: var(--ink);
}

.page-about .about-media-cap {
  display: block;
  margin-top: 12px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--rime);
}

.page-about .about-media-cap--dark {
  color: var(--snowline);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 92% at 88% 6%, rgba(44, 106, 151, .55) 0%, rgba(44, 106, 151, 0) 62%),
    linear-gradient(165deg, var(--night) 0%, var(--ice) 74%, #0a2740 100%);
  color: var(--snow);
  padding-block: clamp(42px, 6vw, 86px) clamp(54px, 7.5vw, 112px);
}

.page-about .about-hero::after {
  content: "S01—S10";
  position: absolute;
  right: -.05em;
  bottom: -.34em;
  z-index: 0;
  font-family: var(--font-mono);
  font-size: clamp(70px, 17vw, 240px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.05em;
  white-space: nowrap;
  color: rgba(255, 255, 255, .045);
  pointer-events: none;
}

.page-about .about-vertical-note {
  display: none;
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(30px, 4vw, 52px);
}

.page-about .about-hero .eyebrow {
  color: var(--cyan);
}

.page-about .about-title {
  margin: .3em 0 0;
  font-size: clamp(40px, 7.2vw, 98px);
  line-height: 1.05;
  letter-spacing: -.025em;
  font-weight: 800;
  color: var(--snow);
}

.page-about .about-lede {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 52ch;
  font-size: clamp(15.5px, 1.15vw, 18px);
  line-height: 1.8;
  color: rgba(245, 249, 252, .82);
}

.page-about .about-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 18px clamp(26px, 3vw, 46px);
  margin: clamp(26px, 3.4vw, 42px) 0 0;
  padding: clamp(18px, 2.2vw, 26px) 0 0;
  list-style: none;
  border-top: 1px solid rgba(167, 198, 221, .26);
}

.page-about .about-fact-num {
  display: block;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1;
  font-weight: 700;
  color: var(--snow);
}

.page-about .about-fact-label {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--rime);
}

.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;
}

.page-about .about-hero-figure .media-frame {
  border: 1px solid rgba(167, 198, 221, .22);
}

/* ---------- 深色底上的次要按钮 ---------- */
.page-about .about-hero-actions .btn--ghost,
.page-about .about-next-actions .btn--ghost {
  color: var(--snow);
  border-color: rgba(167, 198, 221, .5);
  background: rgba(255, 255, 255, .06);
}

.page-about .about-hero-actions .btn--ghost:hover,
.page-about .about-hero-actions .btn--ghost:focus-visible,
.page-about .about-next-actions .btn--ghost:hover,
.page-about .about-next-actions .btn--ghost:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 起点 ---------- */
.page-about .about-origin {
  padding-block: clamp(56px, 8vw, 126px);
  background: var(--snow);
}

.page-about .about-origin-inner {
  display: grid;
  gap: clamp(30px, 4vw, 52px);
}

.page-about .about-origin .eyebrow,
.page-about .about-team .eyebrow {
  color: var(--snowline);
}

.page-about .about-note {
  align-self: start;
  padding: clamp(26px, 3.2vw, 44px);
  background: var(--ice);
  color: var(--snow);
  border-left: 3px solid var(--orange);
}

.page-about .about-note-text {
  margin: 0;
  font-size: clamp(19px, 2vw, 26px);
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-about .about-note-by {
  margin: 20px 0 0;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: rgba(167, 198, 221, .8);
}

/* ---------- 赛季节点 ---------- */
.page-about .about-era {
  position: relative;
  overflow: hidden;
  padding-block: clamp(56px, 8vw, 126px);
  background: linear-gradient(178deg, var(--night) 0%, #0a2036 56%, var(--ice) 100%);
  color: var(--snow);
}

.page-about .about-era .eyebrow {
  color: var(--rime);
}

.page-about .about-era .title-lg {
  color: var(--snow);
}

.page-about .era-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(32px, 4.2vw, 58px);
  padding-bottom: clamp(20px, 2.6vw, 30px);
  border-bottom: 1px solid var(--about-rule-dark);
}

.page-about .era-jump-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--rime);
  text-decoration: none;
  background: rgba(255, 255, 255, .05);
  border: 1px solid transparent;
  transition: color .18s var(--ease), background .18s var(--ease),
              border-color .18s var(--ease), transform .18s var(--ease);
}

.page-about .era-jump-item:hover,
.page-about .era-jump-item:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
  background: rgba(255, 74, 28, .1);
  transform: translateX(4px);
}

.page-about .era-jump-item[aria-current="true"] {
  color: #fff;
  background: var(--orange);
  border-color: var(--orange);
}

.page-about .era-track {
  position: relative;
  display: grid;
  gap: clamp(28px, 3.6vw, 46px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .era-track::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 16.5px;
  width: 1px;
  background: linear-gradient(180deg,
    rgba(167, 198, 221, .08) 0%,
    rgba(167, 198, 221, .42) 10%,
    rgba(167, 198, 221, .42) 90%,
    rgba(167, 198, 221, .08) 100%);
}

.page-about .era-item {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 18px;
  scroll-margin-top: 96px;
}

.page-about .era-marker {
  position: relative;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  margin-top: 4px;
}

.page-about .era-dot {
  display: block;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--night);
  border: 1.5px solid var(--rime);
  transition: transform .18s var(--ease), background .18s var(--ease),
              border-color .18s var(--ease);
}

.page-about .era-item:hover .era-dot {
  transform: scale(1.12);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .era-item--current .era-dot {
  width: 15px;
  height: 15px;
  background: var(--orange);
  border-color: var(--orange);
  transform: scale(1.35);
  box-shadow: 0 0 0 6px rgba(255, 74, 28, .16);
}

.page-about .era-item--current:hover .era-dot {
  background: var(--orange);
  border-color: var(--orange);
  transform: scale(1.35);
}

.page-about .era-content {
  min-width: 0;
  padding-bottom: clamp(4px, 1vw, 12px);
}

.page-about .era-tag {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-about .era-title {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.1vw, 26px);
  line-height: 1.38;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--snow);
}

.page-about .era-text {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: rgba(245, 249, 252, .7);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding-block: clamp(56px, 8vw, 126px);
  background: var(--snow);
}

.page-about .about-team-inner {
  display: grid;
  gap: clamp(30px, 4vw, 48px);
}

.page-about .about-team-figure {
  margin: 0;
}

.page-about .about-team-media {
  border: 1px solid rgba(12, 20, 28, .08);
}

.page-about .team-list {
  margin: clamp(28px, 3.4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(12, 20, 28, .14);
}

.page-about .team-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding: clamp(18px, 2.2vw, 26px) 0;
  border-bottom: 1px solid rgba(12, 20, 28, .14);
  transition: background .18s var(--ease), border-color .18s var(--ease);
}

.page-about .team-row:hover {
  background: rgba(44, 106, 151, .07);
  border-bottom-color: var(--snowline);
}

.page-about .team-no {
  padding-top: 4px;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--snowline);
}

.page-about .team-text {
  min-width: 0;
}

.page-about .team-role {
  margin: 0 0 7px;
  font-size: clamp(17px, 1.5vw, 20px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-about .team-text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-ink-2);
}

/* ---------- 吉林视角 ---------- */
.page-about .about-region {
  padding-block: clamp(56px, 8vw, 126px);
  background: linear-gradient(180deg, var(--ice) 0%, #0a2137 100%);
  color: var(--snow);
}

.page-about .about-region .eyebrow {
  color: var(--cyan);
}

.page-about .about-region .title-lg {
  color: var(--snow);
}

.page-about .about-region-figure {
  margin: 0 0 clamp(28px, 3.6vw, 52px);
}

.page-about .about-region-copy {
  display: grid;
  gap: clamp(20px, 2.6vw, 34px);
}

.page-about .about-region-copy p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--about-body);
}

/* ---------- 合作方 ---------- */
.page-about .about-partners {
  padding-block: clamp(56px, 8vw, 126px);
  background: var(--snow);
}

.page-about .about-partners .eyebrow {
  color: var(--snowline);
}

.page-about .about-partners .title-lg {
  color: var(--ink);
}

.page-about .about-partners .about-lead {
  color: var(--about-ink-2);
}

.page-about .partner-list {
  display: grid;
  gap: clamp(26px, 3.4vw, 40px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .partner-row {
  padding-top: clamp(18px, 2.2vw, 26px);
  border-top: 2px solid var(--orange);
}

.page-about .partner-num {
  display: block;
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ice);
}

.page-about .partner-role {
  margin: 16px 0 8px;
  font-size: clamp(17px, 1.5vw, 19px);
  font-weight: 700;
  color: var(--ink);
}

.page-about .partner-row p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-ink-2);
}

/* ---------- 下一赛季 ---------- */
.page-about .about-next {
  position: relative;
  overflow: hidden;
  padding-block: clamp(56px, 8vw, 126px);
  background: var(--night);
  color: var(--snow);
}

.page-about .about-next::before {
  content: "";
  position: absolute;
  inset: auto -10% -40% 45%;
  height: min(520px, 70vw);
  background: radial-gradient(50% 50% at 50% 50%, rgba(255, 74, 28, .16) 0%, rgba(255, 74, 28, 0) 70%);
  pointer-events: none;
}

.page-about .about-next-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(32px, 4vw, 56px);
}

.page-about .about-next .eyebrow {
  color: var(--orange);
}

.page-about .about-next .title-lg {
  margin: .2em 0 .6em;
  color: var(--snow);
}

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

.page-about .next-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-rule-dark);
}

.page-about .next-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: clamp(16px, 2vw, 24px) 0;
  border-bottom: 1px solid var(--about-rule-dark);
}

.page-about .next-key {
  padding-top: 3px;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-about .next-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 249, 252, .76);
}

/* ---------- 桌面端布局 ---------- */
@media (min-width: 900px) {
  .page-about .about-vertical-note {
    display: block;
    position: absolute;
    top: 50%;
    right: clamp(10px, 1.4vw, 22px);
    z-index: 1;
    transform: translateY(-50%);
    writing-mode: vertical-rl;
    font-size: 11px;
    letter-spacing: .34em;
    color: rgba(167, 198, 221, .42);
    pointer-events: none;
  }

  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(36px, 4.5vw, 72px);
  }

  .page-about .about-origin-inner {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, .68fr);
    align-items: start;
    gap: clamp(36px, 5vw, 84px);
  }

  .page-about .about-note {
    margin-top: 92px;
  }

  .page-about .era-track::before {
    left: 47.5px;
  }

  .page-about .era-item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: clamp(24px, 3vw, 46px);
    align-items: start;
  }

  .page-about .about-team-inner {
    grid-template-columns: minmax(0, .84fr) minmax(0, 1.16fr);
    align-items: start;
    gap: clamp(36px, 5vw, 86px);
  }

  .page-about .about-team-media {
    max-width: 440px;
  }

  .page-about .about-team-figure {
    margin-top: 86px;
  }

  .page-about .about-region-copy {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(28px, 4vw, 68px);
  }

  .page-about .partner-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 46px);
  }

  .page-about .about-next-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: clamp(40px, 5vw, 88px);
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  }

  .page-about .about-hero-figure {
    margin-bottom: -18px;
  }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .era-jump-item,
  .page-about .era-dot,
  .page-about .team-row {
    transition: color .18s linear, background .18s linear, border-color .18s linear;
  }

  .page-about .era-jump-item:hover,
  .page-about .era-jump-item:focus-visible {
    transform: none;
  }

  .page-about .era-item:hover .era-dot {
    transform: none;
  }

  .page-about .era-item--current .era-dot,
  .page-about .era-item--current:hover .era-dot {
    transform: scale(1.35);
  }
}
<<<END>>>